Commit | Line | Data |
---|---|---|
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> |
876979c9 | 20 | #include <linux/export.h> |
1da177e4 LT |
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 | 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 | ||
da2441fd DH |
377 | int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param) |
378 | { | |
379 | return call_int_hook(fs_context_parse_param, -ENOPARAM, fc, param); | |
380 | } | |
381 | ||
20510f2f JM |
382 | int security_sb_alloc(struct super_block *sb) |
383 | { | |
f25fce3e | 384 | return call_int_hook(sb_alloc_security, 0, sb); |
20510f2f JM |
385 | } |
386 | ||
387 | void security_sb_free(struct super_block *sb) | |
388 | { | |
f25fce3e | 389 | call_void_hook(sb_free_security, sb); |
20510f2f JM |
390 | } |
391 | ||
204cc0cc | 392 | void security_free_mnt_opts(void **mnt_opts) |
20510f2f | 393 | { |
204cc0cc AV |
394 | if (!*mnt_opts) |
395 | return; | |
396 | call_void_hook(sb_free_mnt_opts, *mnt_opts); | |
397 | *mnt_opts = NULL; | |
20510f2f | 398 | } |
204cc0cc | 399 | EXPORT_SYMBOL(security_free_mnt_opts); |
20510f2f | 400 | |
204cc0cc | 401 | int security_sb_eat_lsm_opts(char *options, void **mnt_opts) |
ff36fe2c | 402 | { |
204cc0cc | 403 | return call_int_hook(sb_eat_lsm_opts, 0, options, mnt_opts); |
ff36fe2c | 404 | } |
f5c0c26d | 405 | EXPORT_SYMBOL(security_sb_eat_lsm_opts); |
ff36fe2c | 406 | |
c039bc3c | 407 | int security_sb_remount(struct super_block *sb, |
204cc0cc | 408 | void *mnt_opts) |
20510f2f | 409 | { |
204cc0cc | 410 | return call_int_hook(sb_remount, 0, sb, mnt_opts); |
ff36fe2c | 411 | } |
a65001e8 | 412 | EXPORT_SYMBOL(security_sb_remount); |
ff36fe2c | 413 | |
a10d7c22 | 414 | int security_sb_kern_mount(struct super_block *sb) |
20510f2f | 415 | { |
a10d7c22 | 416 | return call_int_hook(sb_kern_mount, 0, sb); |
20510f2f JM |
417 | } |
418 | ||
2069f457 EP |
419 | int security_sb_show_options(struct seq_file *m, struct super_block *sb) |
420 | { | |
f25fce3e | 421 | return call_int_hook(sb_show_options, 0, m, sb); |
2069f457 EP |
422 | } |
423 | ||
20510f2f JM |
424 | int security_sb_statfs(struct dentry *dentry) |
425 | { | |
f25fce3e | 426 | return call_int_hook(sb_statfs, 0, dentry); |
20510f2f JM |
427 | } |
428 | ||
8a04c43b | 429 | int security_sb_mount(const char *dev_name, const struct path *path, |
808d4e3c | 430 | const char *type, unsigned long flags, void *data) |
20510f2f | 431 | { |
f25fce3e | 432 | return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data); |
20510f2f JM |
433 | } |
434 | ||
20510f2f JM |
435 | int security_sb_umount(struct vfsmount *mnt, int flags) |
436 | { | |
f25fce3e | 437 | return call_int_hook(sb_umount, 0, mnt, flags); |
20510f2f JM |
438 | } |
439 | ||
3b73b68c | 440 | int security_sb_pivotroot(const struct path *old_path, const struct path *new_path) |
20510f2f | 441 | { |
f25fce3e | 442 | return call_int_hook(sb_pivotroot, 0, old_path, new_path); |
20510f2f JM |
443 | } |
444 | ||
c9180a57 | 445 | int security_sb_set_mnt_opts(struct super_block *sb, |
204cc0cc | 446 | void *mnt_opts, |
649f6e77 DQ |
447 | unsigned long kern_flags, |
448 | unsigned long *set_kern_flags) | |
c9180a57 | 449 | { |
b1d9e6b0 | 450 | return call_int_hook(sb_set_mnt_opts, |
204cc0cc AV |
451 | mnt_opts ? -EOPNOTSUPP : 0, sb, |
452 | mnt_opts, kern_flags, set_kern_flags); | |
c9180a57 | 453 | } |
e0007529 | 454 | EXPORT_SYMBOL(security_sb_set_mnt_opts); |
c9180a57 | 455 | |
094f7b69 | 456 | int security_sb_clone_mnt_opts(const struct super_block *oldsb, |
0b4d3452 SM |
457 | struct super_block *newsb, |
458 | unsigned long kern_flags, | |
459 | unsigned long *set_kern_flags) | |
c9180a57 | 460 | { |
0b4d3452 SM |
461 | return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb, |
462 | kern_flags, set_kern_flags); | |
c9180a57 | 463 | } |
e0007529 EP |
464 | EXPORT_SYMBOL(security_sb_clone_mnt_opts); |
465 | ||
757cbe59 AV |
466 | int security_add_mnt_opt(const char *option, const char *val, int len, |
467 | void **mnt_opts) | |
e0007529 | 468 | { |
757cbe59 AV |
469 | return call_int_hook(sb_add_mnt_opt, -EINVAL, |
470 | option, val, len, mnt_opts); | |
e0007529 | 471 | } |
757cbe59 | 472 | EXPORT_SYMBOL(security_add_mnt_opt); |
c9180a57 | 473 | |
20510f2f JM |
474 | int security_inode_alloc(struct inode *inode) |
475 | { | |
476 | inode->i_security = NULL; | |
f25fce3e | 477 | return call_int_hook(inode_alloc_security, 0, inode); |
20510f2f JM |
478 | } |
479 | ||
480 | void security_inode_free(struct inode *inode) | |
481 | { | |
f381c272 | 482 | integrity_inode_free(inode); |
f25fce3e | 483 | call_void_hook(inode_free_security, inode); |
20510f2f JM |
484 | } |
485 | ||
d47be3df | 486 | int security_dentry_init_security(struct dentry *dentry, int mode, |
4f3ccd76 | 487 | const struct qstr *name, void **ctx, |
d47be3df DQ |
488 | u32 *ctxlen) |
489 | { | |
b1d9e6b0 CS |
490 | return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode, |
491 | name, ctx, ctxlen); | |
d47be3df DQ |
492 | } |
493 | EXPORT_SYMBOL(security_dentry_init_security); | |
494 | ||
2602625b VG |
495 | int security_dentry_create_files_as(struct dentry *dentry, int mode, |
496 | struct qstr *name, | |
497 | const struct cred *old, struct cred *new) | |
498 | { | |
499 | return call_int_hook(dentry_create_files_as, 0, dentry, mode, | |
500 | name, old, new); | |
501 | } | |
502 | EXPORT_SYMBOL(security_dentry_create_files_as); | |
503 | ||
20510f2f | 504 | int security_inode_init_security(struct inode *inode, struct inode *dir, |
9d8f13ba MZ |
505 | const struct qstr *qstr, |
506 | const initxattrs initxattrs, void *fs_data) | |
20510f2f | 507 | { |
823eb1cc MZ |
508 | struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1]; |
509 | struct xattr *lsm_xattr, *evm_xattr, *xattr; | |
9d8f13ba MZ |
510 | int ret; |
511 | ||
20510f2f | 512 | if (unlikely(IS_PRIVATE(inode))) |
fb88c2b6 | 513 | return 0; |
9d8f13ba | 514 | |
9d8f13ba | 515 | if (!initxattrs) |
e308fd3b JB |
516 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, |
517 | dir, qstr, NULL, NULL, NULL); | |
9548906b | 518 | memset(new_xattrs, 0, sizeof(new_xattrs)); |
9d8f13ba | 519 | lsm_xattr = new_xattrs; |
b1d9e6b0 | 520 | ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr, |
9d8f13ba MZ |
521 | &lsm_xattr->name, |
522 | &lsm_xattr->value, | |
523 | &lsm_xattr->value_len); | |
524 | if (ret) | |
525 | goto out; | |
823eb1cc MZ |
526 | |
527 | evm_xattr = lsm_xattr + 1; | |
528 | ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr); | |
529 | if (ret) | |
530 | goto out; | |
9d8f13ba MZ |
531 | ret = initxattrs(inode, new_xattrs, fs_data); |
532 | out: | |
9548906b | 533 | for (xattr = new_xattrs; xattr->value != NULL; xattr++) |
823eb1cc | 534 | kfree(xattr->value); |
9d8f13ba MZ |
535 | return (ret == -EOPNOTSUPP) ? 0 : ret; |
536 | } | |
537 | EXPORT_SYMBOL(security_inode_init_security); | |
538 | ||
539 | int security_old_inode_init_security(struct inode *inode, struct inode *dir, | |
9548906b | 540 | const struct qstr *qstr, const char **name, |
9d8f13ba | 541 | void **value, size_t *len) |
20510f2f JM |
542 | { |
543 | if (unlikely(IS_PRIVATE(inode))) | |
30e05324 | 544 | return -EOPNOTSUPP; |
e308fd3b JB |
545 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, |
546 | qstr, name, value, len); | |
20510f2f | 547 | } |
9d8f13ba | 548 | EXPORT_SYMBOL(security_old_inode_init_security); |
20510f2f | 549 | |
be6d3e56 | 550 | #ifdef CONFIG_SECURITY_PATH |
d3607752 | 551 | int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, |
be6d3e56 KT |
552 | unsigned int dev) |
553 | { | |
c6f493d6 | 554 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 555 | return 0; |
f25fce3e | 556 | return call_int_hook(path_mknod, 0, dir, dentry, mode, dev); |
be6d3e56 KT |
557 | } |
558 | EXPORT_SYMBOL(security_path_mknod); | |
559 | ||
d3607752 | 560 | int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode) |
be6d3e56 | 561 | { |
c6f493d6 | 562 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 563 | return 0; |
f25fce3e | 564 | return call_int_hook(path_mkdir, 0, dir, dentry, mode); |
be6d3e56 | 565 | } |
82140443 | 566 | EXPORT_SYMBOL(security_path_mkdir); |
be6d3e56 | 567 | |
989f74e0 | 568 | int security_path_rmdir(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_rmdir, 0, dir, dentry); |
be6d3e56 KT |
573 | } |
574 | ||
989f74e0 | 575 | int security_path_unlink(const struct path *dir, struct dentry *dentry) |
be6d3e56 | 576 | { |
c6f493d6 | 577 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 578 | return 0; |
f25fce3e | 579 | return call_int_hook(path_unlink, 0, dir, dentry); |
be6d3e56 | 580 | } |
82140443 | 581 | EXPORT_SYMBOL(security_path_unlink); |
be6d3e56 | 582 | |
d3607752 | 583 | int security_path_symlink(const struct path *dir, struct dentry *dentry, |
be6d3e56 KT |
584 | const char *old_name) |
585 | { | |
c6f493d6 | 586 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 587 | return 0; |
f25fce3e | 588 | return call_int_hook(path_symlink, 0, dir, dentry, old_name); |
be6d3e56 KT |
589 | } |
590 | ||
3ccee46a | 591 | int security_path_link(struct dentry *old_dentry, const struct path *new_dir, |
be6d3e56 KT |
592 | struct dentry *new_dentry) |
593 | { | |
c6f493d6 | 594 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
be6d3e56 | 595 | return 0; |
f25fce3e | 596 | return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry); |
be6d3e56 KT |
597 | } |
598 | ||
3ccee46a AV |
599 | int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, |
600 | const struct path *new_dir, struct dentry *new_dentry, | |
0b3974eb | 601 | unsigned int flags) |
be6d3e56 | 602 | { |
c6f493d6 DH |
603 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
604 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
be6d3e56 | 605 | return 0; |
da1ce067 MS |
606 | |
607 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e CS |
608 | int err = call_int_hook(path_rename, 0, new_dir, new_dentry, |
609 | old_dir, old_dentry); | |
da1ce067 MS |
610 | if (err) |
611 | return err; | |
612 | } | |
613 | ||
f25fce3e CS |
614 | return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir, |
615 | new_dentry); | |
be6d3e56 | 616 | } |
82140443 | 617 | EXPORT_SYMBOL(security_path_rename); |
be6d3e56 | 618 | |
81f4c506 | 619 | int security_path_truncate(const struct path *path) |
be6d3e56 | 620 | { |
c6f493d6 | 621 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
be6d3e56 | 622 | return 0; |
f25fce3e | 623 | return call_int_hook(path_truncate, 0, path); |
be6d3e56 | 624 | } |
89eda068 | 625 | |
be01f9f2 | 626 | int security_path_chmod(const struct path *path, umode_t mode) |
89eda068 | 627 | { |
c6f493d6 | 628 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 629 | return 0; |
f25fce3e | 630 | return call_int_hook(path_chmod, 0, path, mode); |
89eda068 TH |
631 | } |
632 | ||
7fd25dac | 633 | int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) |
89eda068 | 634 | { |
c6f493d6 | 635 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 636 | return 0; |
f25fce3e | 637 | return call_int_hook(path_chown, 0, path, uid, gid); |
89eda068 | 638 | } |
8b8efb44 | 639 | |
77b286c0 | 640 | int security_path_chroot(const struct path *path) |
8b8efb44 | 641 | { |
f25fce3e | 642 | return call_int_hook(path_chroot, 0, path); |
8b8efb44 | 643 | } |
be6d3e56 KT |
644 | #endif |
645 | ||
4acdaf27 | 646 | int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
647 | { |
648 | if (unlikely(IS_PRIVATE(dir))) | |
649 | return 0; | |
f25fce3e | 650 | return call_int_hook(inode_create, 0, dir, dentry, mode); |
20510f2f | 651 | } |
800a9647 | 652 | EXPORT_SYMBOL_GPL(security_inode_create); |
20510f2f JM |
653 | |
654 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, | |
655 | struct dentry *new_dentry) | |
656 | { | |
c6f493d6 | 657 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
20510f2f | 658 | return 0; |
f25fce3e | 659 | return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry); |
20510f2f JM |
660 | } |
661 | ||
662 | int security_inode_unlink(struct inode *dir, struct dentry *dentry) | |
663 | { | |
c6f493d6 | 664 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 665 | return 0; |
f25fce3e | 666 | return call_int_hook(inode_unlink, 0, dir, dentry); |
20510f2f JM |
667 | } |
668 | ||
669 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
670 | const char *old_name) | |
671 | { | |
672 | if (unlikely(IS_PRIVATE(dir))) | |
673 | return 0; | |
f25fce3e | 674 | return call_int_hook(inode_symlink, 0, dir, dentry, old_name); |
20510f2f JM |
675 | } |
676 | ||
18bb1db3 | 677 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
678 | { |
679 | if (unlikely(IS_PRIVATE(dir))) | |
680 | return 0; | |
f25fce3e | 681 | return call_int_hook(inode_mkdir, 0, dir, dentry, mode); |
20510f2f | 682 | } |
800a9647 | 683 | EXPORT_SYMBOL_GPL(security_inode_mkdir); |
20510f2f JM |
684 | |
685 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry) | |
686 | { | |
c6f493d6 | 687 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 688 | return 0; |
f25fce3e | 689 | return call_int_hook(inode_rmdir, 0, dir, dentry); |
20510f2f JM |
690 | } |
691 | ||
1a67aafb | 692 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) |
20510f2f JM |
693 | { |
694 | if (unlikely(IS_PRIVATE(dir))) | |
695 | return 0; | |
f25fce3e | 696 | return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev); |
20510f2f JM |
697 | } |
698 | ||
699 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, | |
0b3974eb MS |
700 | struct inode *new_dir, struct dentry *new_dentry, |
701 | unsigned int flags) | |
20510f2f | 702 | { |
c6f493d6 DH |
703 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
704 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
20510f2f | 705 | return 0; |
da1ce067 MS |
706 | |
707 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e | 708 | int err = call_int_hook(inode_rename, 0, new_dir, new_dentry, |
da1ce067 MS |
709 | old_dir, old_dentry); |
710 | if (err) | |
711 | return err; | |
712 | } | |
713 | ||
f25fce3e | 714 | return call_int_hook(inode_rename, 0, old_dir, old_dentry, |
20510f2f JM |
715 | new_dir, new_dentry); |
716 | } | |
717 | ||
718 | int security_inode_readlink(struct dentry *dentry) | |
719 | { | |
c6f493d6 | 720 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 721 | return 0; |
f25fce3e | 722 | return call_int_hook(inode_readlink, 0, dentry); |
20510f2f JM |
723 | } |
724 | ||
bda0be7a N |
725 | int security_inode_follow_link(struct dentry *dentry, struct inode *inode, |
726 | bool rcu) | |
20510f2f | 727 | { |
bda0be7a | 728 | if (unlikely(IS_PRIVATE(inode))) |
20510f2f | 729 | return 0; |
e22619a2 | 730 | return call_int_hook(inode_follow_link, 0, dentry, inode, rcu); |
20510f2f JM |
731 | } |
732 | ||
b77b0646 | 733 | int security_inode_permission(struct inode *inode, int mask) |
20510f2f JM |
734 | { |
735 | if (unlikely(IS_PRIVATE(inode))) | |
736 | return 0; | |
f25fce3e | 737 | return call_int_hook(inode_permission, 0, inode, mask); |
20510f2f JM |
738 | } |
739 | ||
740 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr) | |
741 | { | |
817b54aa MZ |
742 | int ret; |
743 | ||
c6f493d6 | 744 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 745 | return 0; |
f25fce3e | 746 | ret = call_int_hook(inode_setattr, 0, dentry, attr); |
817b54aa MZ |
747 | if (ret) |
748 | return ret; | |
749 | return evm_inode_setattr(dentry, attr); | |
20510f2f | 750 | } |
b1da47e2 | 751 | EXPORT_SYMBOL_GPL(security_inode_setattr); |
20510f2f | 752 | |
3f7036a0 | 753 | int security_inode_getattr(const struct path *path) |
20510f2f | 754 | { |
c6f493d6 | 755 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
20510f2f | 756 | return 0; |
f25fce3e | 757 | return call_int_hook(inode_getattr, 0, path); |
20510f2f JM |
758 | } |
759 | ||
8f0cfa52 DH |
760 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
761 | const void *value, size_t size, int flags) | |
20510f2f | 762 | { |
3e1be52d MZ |
763 | int ret; |
764 | ||
c6f493d6 | 765 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 766 | return 0; |
b1d9e6b0 CS |
767 | /* |
768 | * SELinux and Smack integrate the cap call, | |
769 | * so assume that all LSMs supplying this call do so. | |
770 | */ | |
771 | ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size, | |
f25fce3e | 772 | flags); |
b1d9e6b0 CS |
773 | |
774 | if (ret == 1) | |
775 | ret = cap_inode_setxattr(dentry, name, value, size, flags); | |
42c63330 MZ |
776 | if (ret) |
777 | return ret; | |
778 | ret = ima_inode_setxattr(dentry, name, value, size); | |
3e1be52d MZ |
779 | if (ret) |
780 | return ret; | |
781 | return evm_inode_setxattr(dentry, name, value, size); | |
20510f2f JM |
782 | } |
783 | ||
8f0cfa52 DH |
784 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, |
785 | const void *value, size_t size, int flags) | |
20510f2f | 786 | { |
c6f493d6 | 787 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 788 | return; |
f25fce3e | 789 | call_void_hook(inode_post_setxattr, dentry, name, value, size, flags); |
3e1be52d | 790 | evm_inode_post_setxattr(dentry, name, value, size); |
20510f2f JM |
791 | } |
792 | ||
8f0cfa52 | 793 | int security_inode_getxattr(struct dentry *dentry, const char *name) |
20510f2f | 794 | { |
c6f493d6 | 795 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 796 | return 0; |
f25fce3e | 797 | return call_int_hook(inode_getxattr, 0, dentry, name); |
20510f2f JM |
798 | } |
799 | ||
800 | int security_inode_listxattr(struct dentry *dentry) | |
801 | { | |
c6f493d6 | 802 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 803 | return 0; |
f25fce3e | 804 | return call_int_hook(inode_listxattr, 0, dentry); |
20510f2f JM |
805 | } |
806 | ||
8f0cfa52 | 807 | int security_inode_removexattr(struct dentry *dentry, const char *name) |
20510f2f | 808 | { |
3e1be52d MZ |
809 | int ret; |
810 | ||
c6f493d6 | 811 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 812 | return 0; |
b1d9e6b0 CS |
813 | /* |
814 | * SELinux and Smack integrate the cap call, | |
815 | * so assume that all LSMs supplying this call do so. | |
816 | */ | |
817 | ret = call_int_hook(inode_removexattr, 1, dentry, name); | |
818 | if (ret == 1) | |
819 | ret = cap_inode_removexattr(dentry, name); | |
42c63330 MZ |
820 | if (ret) |
821 | return ret; | |
822 | ret = ima_inode_removexattr(dentry, name); | |
3e1be52d MZ |
823 | if (ret) |
824 | return ret; | |
825 | return evm_inode_removexattr(dentry, name); | |
20510f2f JM |
826 | } |
827 | ||
b5376771 SH |
828 | int security_inode_need_killpriv(struct dentry *dentry) |
829 | { | |
f25fce3e | 830 | return call_int_hook(inode_need_killpriv, 0, dentry); |
b5376771 SH |
831 | } |
832 | ||
833 | int security_inode_killpriv(struct dentry *dentry) | |
834 | { | |
f25fce3e | 835 | return call_int_hook(inode_killpriv, 0, dentry); |
b5376771 SH |
836 | } |
837 | ||
ea861dfd | 838 | int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc) |
20510f2f | 839 | { |
2885c1e3 CS |
840 | struct security_hook_list *hp; |
841 | int rc; | |
842 | ||
20510f2f | 843 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 844 | return -EOPNOTSUPP; |
2885c1e3 CS |
845 | /* |
846 | * Only one module will provide an attribute with a given name. | |
847 | */ | |
df0ce173 | 848 | hlist_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) { |
2885c1e3 CS |
849 | rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc); |
850 | if (rc != -EOPNOTSUPP) | |
851 | return rc; | |
852 | } | |
853 | return -EOPNOTSUPP; | |
20510f2f JM |
854 | } |
855 | ||
856 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
857 | { | |
2885c1e3 CS |
858 | struct security_hook_list *hp; |
859 | int rc; | |
860 | ||
20510f2f | 861 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 862 | return -EOPNOTSUPP; |
2885c1e3 CS |
863 | /* |
864 | * Only one module will provide an attribute with a given name. | |
865 | */ | |
df0ce173 | 866 | hlist_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) { |
2885c1e3 CS |
867 | rc = hp->hook.inode_setsecurity(inode, name, value, size, |
868 | flags); | |
869 | if (rc != -EOPNOTSUPP) | |
870 | return rc; | |
871 | } | |
872 | return -EOPNOTSUPP; | |
20510f2f JM |
873 | } |
874 | ||
875 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
876 | { | |
877 | if (unlikely(IS_PRIVATE(inode))) | |
878 | return 0; | |
f25fce3e | 879 | return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size); |
20510f2f | 880 | } |
c9bccef6 | 881 | EXPORT_SYMBOL(security_inode_listsecurity); |
20510f2f | 882 | |
d6335d77 | 883 | void security_inode_getsecid(struct inode *inode, u32 *secid) |
8a076191 | 884 | { |
f25fce3e | 885 | call_void_hook(inode_getsecid, inode, secid); |
8a076191 AD |
886 | } |
887 | ||
d8ad8b49 VG |
888 | int security_inode_copy_up(struct dentry *src, struct cred **new) |
889 | { | |
890 | return call_int_hook(inode_copy_up, 0, src, new); | |
891 | } | |
892 | EXPORT_SYMBOL(security_inode_copy_up); | |
893 | ||
121ab822 VG |
894 | int security_inode_copy_up_xattr(const char *name) |
895 | { | |
896 | return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name); | |
897 | } | |
898 | EXPORT_SYMBOL(security_inode_copy_up_xattr); | |
899 | ||
20510f2f JM |
900 | int security_file_permission(struct file *file, int mask) |
901 | { | |
c4ec54b4 EP |
902 | int ret; |
903 | ||
f25fce3e | 904 | ret = call_int_hook(file_permission, 0, file, mask); |
c4ec54b4 EP |
905 | if (ret) |
906 | return ret; | |
907 | ||
908 | return fsnotify_perm(file, mask); | |
20510f2f JM |
909 | } |
910 | ||
911 | int security_file_alloc(struct file *file) | |
912 | { | |
f25fce3e | 913 | return call_int_hook(file_alloc_security, 0, file); |
20510f2f JM |
914 | } |
915 | ||
916 | void security_file_free(struct file *file) | |
917 | { | |
f25fce3e | 918 | call_void_hook(file_free_security, file); |
20510f2f JM |
919 | } |
920 | ||
921 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
922 | { | |
f25fce3e | 923 | return call_int_hook(file_ioctl, 0, file, cmd, arg); |
20510f2f JM |
924 | } |
925 | ||
98de59bf | 926 | static inline unsigned long mmap_prot(struct file *file, unsigned long prot) |
20510f2f | 927 | { |
8b3ec681 | 928 | /* |
98de59bf AV |
929 | * Does we have PROT_READ and does the application expect |
930 | * it to imply PROT_EXEC? If not, nothing to talk about... | |
8b3ec681 | 931 | */ |
98de59bf AV |
932 | if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ) |
933 | return prot; | |
8b3ec681 | 934 | if (!(current->personality & READ_IMPLIES_EXEC)) |
98de59bf AV |
935 | return prot; |
936 | /* | |
937 | * if that's an anonymous mapping, let it. | |
938 | */ | |
939 | if (!file) | |
940 | return prot | PROT_EXEC; | |
941 | /* | |
942 | * ditto if it's not on noexec mount, except that on !MMU we need | |
b4caecd4 | 943 | * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case |
98de59bf | 944 | */ |
90f8572b | 945 | if (!path_noexec(&file->f_path)) { |
8b3ec681 | 946 | #ifndef CONFIG_MMU |
b4caecd4 CH |
947 | if (file->f_op->mmap_capabilities) { |
948 | unsigned caps = file->f_op->mmap_capabilities(file); | |
949 | if (!(caps & NOMMU_MAP_EXEC)) | |
950 | return prot; | |
951 | } | |
8b3ec681 | 952 | #endif |
98de59bf | 953 | return prot | PROT_EXEC; |
8b3ec681 | 954 | } |
98de59bf AV |
955 | /* anything on noexec mount won't get PROT_EXEC */ |
956 | return prot; | |
957 | } | |
958 | ||
959 | int security_mmap_file(struct file *file, unsigned long prot, | |
960 | unsigned long flags) | |
961 | { | |
962 | int ret; | |
f25fce3e | 963 | ret = call_int_hook(mmap_file, 0, file, prot, |
98de59bf | 964 | mmap_prot(file, prot), flags); |
6c21a7fb MZ |
965 | if (ret) |
966 | return ret; | |
967 | return ima_file_mmap(file, prot); | |
20510f2f JM |
968 | } |
969 | ||
e5467859 AV |
970 | int security_mmap_addr(unsigned long addr) |
971 | { | |
f25fce3e | 972 | return call_int_hook(mmap_addr, 0, addr); |
e5467859 AV |
973 | } |
974 | ||
20510f2f JM |
975 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, |
976 | unsigned long prot) | |
977 | { | |
f25fce3e | 978 | return call_int_hook(file_mprotect, 0, vma, reqprot, prot); |
20510f2f JM |
979 | } |
980 | ||
981 | int security_file_lock(struct file *file, unsigned int cmd) | |
982 | { | |
f25fce3e | 983 | return call_int_hook(file_lock, 0, file, cmd); |
20510f2f JM |
984 | } |
985 | ||
986 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) | |
987 | { | |
f25fce3e | 988 | return call_int_hook(file_fcntl, 0, file, cmd, arg); |
20510f2f JM |
989 | } |
990 | ||
e0b93edd | 991 | void security_file_set_fowner(struct file *file) |
20510f2f | 992 | { |
f25fce3e | 993 | call_void_hook(file_set_fowner, file); |
20510f2f JM |
994 | } |
995 | ||
996 | int security_file_send_sigiotask(struct task_struct *tsk, | |
997 | struct fown_struct *fown, int sig) | |
998 | { | |
f25fce3e | 999 | return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig); |
20510f2f JM |
1000 | } |
1001 | ||
1002 | int security_file_receive(struct file *file) | |
1003 | { | |
f25fce3e | 1004 | return call_int_hook(file_receive, 0, file); |
20510f2f JM |
1005 | } |
1006 | ||
e3f20ae2 | 1007 | int security_file_open(struct file *file) |
20510f2f | 1008 | { |
c4ec54b4 EP |
1009 | int ret; |
1010 | ||
94817692 | 1011 | ret = call_int_hook(file_open, 0, file); |
c4ec54b4 EP |
1012 | if (ret) |
1013 | return ret; | |
1014 | ||
1015 | return fsnotify_perm(file, MAY_OPEN); | |
20510f2f JM |
1016 | } |
1017 | ||
e4e55b47 TH |
1018 | int security_task_alloc(struct task_struct *task, unsigned long clone_flags) |
1019 | { | |
1020 | return call_int_hook(task_alloc, 0, task, clone_flags); | |
1021 | } | |
1022 | ||
1a2a4d06 KC |
1023 | void security_task_free(struct task_struct *task) |
1024 | { | |
f25fce3e | 1025 | call_void_hook(task_free, task); |
1a2a4d06 KC |
1026 | } |
1027 | ||
ee18d64c DH |
1028 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
1029 | { | |
f25fce3e | 1030 | return call_int_hook(cred_alloc_blank, 0, cred, gfp); |
ee18d64c DH |
1031 | } |
1032 | ||
d84f4f99 | 1033 | void security_cred_free(struct cred *cred) |
20510f2f | 1034 | { |
f25fce3e | 1035 | call_void_hook(cred_free, cred); |
20510f2f JM |
1036 | } |
1037 | ||
d84f4f99 | 1038 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) |
20510f2f | 1039 | { |
f25fce3e | 1040 | return call_int_hook(cred_prepare, 0, new, old, gfp); |
d84f4f99 DH |
1041 | } |
1042 | ||
ee18d64c DH |
1043 | void security_transfer_creds(struct cred *new, const struct cred *old) |
1044 | { | |
f25fce3e | 1045 | call_void_hook(cred_transfer, new, old); |
ee18d64c DH |
1046 | } |
1047 | ||
3ec30113 MG |
1048 | void security_cred_getsecid(const struct cred *c, u32 *secid) |
1049 | { | |
1050 | *secid = 0; | |
1051 | call_void_hook(cred_getsecid, c, secid); | |
1052 | } | |
1053 | EXPORT_SYMBOL(security_cred_getsecid); | |
1054 | ||
3a3b7ce9 DH |
1055 | int security_kernel_act_as(struct cred *new, u32 secid) |
1056 | { | |
f25fce3e | 1057 | return call_int_hook(kernel_act_as, 0, new, secid); |
3a3b7ce9 DH |
1058 | } |
1059 | ||
1060 | int security_kernel_create_files_as(struct cred *new, struct inode *inode) | |
1061 | { | |
f25fce3e | 1062 | return call_int_hook(kernel_create_files_as, 0, new, inode); |
3a3b7ce9 DH |
1063 | } |
1064 | ||
dd8dbf2e | 1065 | int security_kernel_module_request(char *kmod_name) |
9188499c | 1066 | { |
6eb864c1 MK |
1067 | int ret; |
1068 | ||
1069 | ret = call_int_hook(kernel_module_request, 0, kmod_name); | |
1070 | if (ret) | |
1071 | return ret; | |
1072 | return integrity_kernel_module_request(kmod_name); | |
9188499c EP |
1073 | } |
1074 | ||
39eeb4fb MZ |
1075 | int security_kernel_read_file(struct file *file, enum kernel_read_file_id id) |
1076 | { | |
1077 | int ret; | |
1078 | ||
1079 | ret = call_int_hook(kernel_read_file, 0, file, id); | |
1080 | if (ret) | |
1081 | return ret; | |
1082 | return ima_read_file(file, id); | |
1083 | } | |
1084 | EXPORT_SYMBOL_GPL(security_kernel_read_file); | |
1085 | ||
bc8ca5b9 MZ |
1086 | int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, |
1087 | enum kernel_read_file_id id) | |
b44a7dfc | 1088 | { |
cf222217 MZ |
1089 | int ret; |
1090 | ||
1091 | ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id); | |
1092 | if (ret) | |
1093 | return ret; | |
1094 | return ima_post_read_file(file, buf, size, id); | |
b44a7dfc MZ |
1095 | } |
1096 | EXPORT_SYMBOL_GPL(security_kernel_post_read_file); | |
1097 | ||
377179cd MZ |
1098 | int security_kernel_load_data(enum kernel_load_data_id id) |
1099 | { | |
16c267aa MZ |
1100 | int ret; |
1101 | ||
1102 | ret = call_int_hook(kernel_load_data, 0, id); | |
1103 | if (ret) | |
1104 | return ret; | |
1105 | return ima_load_data(id); | |
377179cd | 1106 | } |
83a68a06 | 1107 | EXPORT_SYMBOL_GPL(security_kernel_load_data); |
377179cd | 1108 | |
d84f4f99 DH |
1109 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1110 | int flags) | |
20510f2f | 1111 | { |
f25fce3e | 1112 | return call_int_hook(task_fix_setuid, 0, new, old, flags); |
20510f2f JM |
1113 | } |
1114 | ||
20510f2f JM |
1115 | int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1116 | { | |
f25fce3e | 1117 | return call_int_hook(task_setpgid, 0, p, pgid); |
20510f2f JM |
1118 | } |
1119 | ||
1120 | int security_task_getpgid(struct task_struct *p) | |
1121 | { | |
f25fce3e | 1122 | return call_int_hook(task_getpgid, 0, p); |
20510f2f JM |
1123 | } |
1124 | ||
1125 | int security_task_getsid(struct task_struct *p) | |
1126 | { | |
f25fce3e | 1127 | return call_int_hook(task_getsid, 0, p); |
20510f2f JM |
1128 | } |
1129 | ||
1130 | void security_task_getsecid(struct task_struct *p, u32 *secid) | |
1131 | { | |
b1d9e6b0 | 1132 | *secid = 0; |
f25fce3e | 1133 | call_void_hook(task_getsecid, p, secid); |
20510f2f JM |
1134 | } |
1135 | EXPORT_SYMBOL(security_task_getsecid); | |
1136 | ||
20510f2f JM |
1137 | int security_task_setnice(struct task_struct *p, int nice) |
1138 | { | |
f25fce3e | 1139 | return call_int_hook(task_setnice, 0, p, nice); |
20510f2f JM |
1140 | } |
1141 | ||
1142 | int security_task_setioprio(struct task_struct *p, int ioprio) | |
1143 | { | |
f25fce3e | 1144 | return call_int_hook(task_setioprio, 0, p, ioprio); |
20510f2f JM |
1145 | } |
1146 | ||
1147 | int security_task_getioprio(struct task_struct *p) | |
1148 | { | |
f25fce3e | 1149 | return call_int_hook(task_getioprio, 0, p); |
20510f2f JM |
1150 | } |
1151 | ||
791ec491 SS |
1152 | int security_task_prlimit(const struct cred *cred, const struct cred *tcred, |
1153 | unsigned int flags) | |
1154 | { | |
1155 | return call_int_hook(task_prlimit, 0, cred, tcred, flags); | |
1156 | } | |
1157 | ||
8fd00b4d JS |
1158 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
1159 | struct rlimit *new_rlim) | |
20510f2f | 1160 | { |
f25fce3e | 1161 | return call_int_hook(task_setrlimit, 0, p, resource, new_rlim); |
20510f2f JM |
1162 | } |
1163 | ||
b0ae1981 | 1164 | int security_task_setscheduler(struct task_struct *p) |
20510f2f | 1165 | { |
f25fce3e | 1166 | return call_int_hook(task_setscheduler, 0, p); |
20510f2f JM |
1167 | } |
1168 | ||
1169 | int security_task_getscheduler(struct task_struct *p) | |
1170 | { | |
f25fce3e | 1171 | return call_int_hook(task_getscheduler, 0, p); |
20510f2f JM |
1172 | } |
1173 | ||
1174 | int security_task_movememory(struct task_struct *p) | |
1175 | { | |
f25fce3e | 1176 | return call_int_hook(task_movememory, 0, p); |
20510f2f JM |
1177 | } |
1178 | ||
ae7795bc | 1179 | int security_task_kill(struct task_struct *p, struct kernel_siginfo *info, |
6b4f3d01 | 1180 | int sig, const struct cred *cred) |
20510f2f | 1181 | { |
6b4f3d01 | 1182 | return call_int_hook(task_kill, 0, p, info, sig, cred); |
20510f2f JM |
1183 | } |
1184 | ||
20510f2f | 1185 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 1186 | unsigned long arg4, unsigned long arg5) |
20510f2f | 1187 | { |
b1d9e6b0 CS |
1188 | int thisrc; |
1189 | int rc = -ENOSYS; | |
1190 | struct security_hook_list *hp; | |
1191 | ||
df0ce173 | 1192 | hlist_for_each_entry(hp, &security_hook_heads.task_prctl, list) { |
b1d9e6b0 CS |
1193 | thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5); |
1194 | if (thisrc != -ENOSYS) { | |
1195 | rc = thisrc; | |
1196 | if (thisrc != 0) | |
1197 | break; | |
1198 | } | |
1199 | } | |
1200 | return rc; | |
20510f2f JM |
1201 | } |
1202 | ||
1203 | void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
1204 | { | |
f25fce3e | 1205 | call_void_hook(task_to_inode, p, inode); |
20510f2f JM |
1206 | } |
1207 | ||
1208 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) | |
1209 | { | |
f25fce3e | 1210 | return call_int_hook(ipc_permission, 0, ipcp, flag); |
20510f2f JM |
1211 | } |
1212 | ||
8a076191 AD |
1213 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
1214 | { | |
b1d9e6b0 | 1215 | *secid = 0; |
f25fce3e | 1216 | call_void_hook(ipc_getsecid, ipcp, secid); |
8a076191 AD |
1217 | } |
1218 | ||
20510f2f JM |
1219 | int security_msg_msg_alloc(struct msg_msg *msg) |
1220 | { | |
f25fce3e | 1221 | return call_int_hook(msg_msg_alloc_security, 0, msg); |
20510f2f JM |
1222 | } |
1223 | ||
1224 | void security_msg_msg_free(struct msg_msg *msg) | |
1225 | { | |
f25fce3e | 1226 | call_void_hook(msg_msg_free_security, msg); |
20510f2f JM |
1227 | } |
1228 | ||
d8c6e854 | 1229 | int security_msg_queue_alloc(struct kern_ipc_perm *msq) |
20510f2f | 1230 | { |
f25fce3e | 1231 | return call_int_hook(msg_queue_alloc_security, 0, msq); |
20510f2f JM |
1232 | } |
1233 | ||
d8c6e854 | 1234 | void security_msg_queue_free(struct kern_ipc_perm *msq) |
20510f2f | 1235 | { |
f25fce3e | 1236 | call_void_hook(msg_queue_free_security, msq); |
20510f2f JM |
1237 | } |
1238 | ||
d8c6e854 | 1239 | int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg) |
20510f2f | 1240 | { |
f25fce3e | 1241 | return call_int_hook(msg_queue_associate, 0, msq, msqflg); |
20510f2f JM |
1242 | } |
1243 | ||
d8c6e854 | 1244 | int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd) |
20510f2f | 1245 | { |
f25fce3e | 1246 | return call_int_hook(msg_queue_msgctl, 0, msq, cmd); |
20510f2f JM |
1247 | } |
1248 | ||
d8c6e854 | 1249 | int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, |
20510f2f JM |
1250 | struct msg_msg *msg, int msqflg) |
1251 | { | |
f25fce3e | 1252 | return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg); |
20510f2f JM |
1253 | } |
1254 | ||
d8c6e854 | 1255 | int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, |
20510f2f JM |
1256 | struct task_struct *target, long type, int mode) |
1257 | { | |
f25fce3e | 1258 | return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode); |
20510f2f JM |
1259 | } |
1260 | ||
7191adff | 1261 | int security_shm_alloc(struct kern_ipc_perm *shp) |
20510f2f | 1262 | { |
f25fce3e | 1263 | return call_int_hook(shm_alloc_security, 0, shp); |
20510f2f JM |
1264 | } |
1265 | ||
7191adff | 1266 | void security_shm_free(struct kern_ipc_perm *shp) |
20510f2f | 1267 | { |
f25fce3e | 1268 | call_void_hook(shm_free_security, shp); |
20510f2f JM |
1269 | } |
1270 | ||
7191adff | 1271 | int security_shm_associate(struct kern_ipc_perm *shp, int shmflg) |
20510f2f | 1272 | { |
f25fce3e | 1273 | return call_int_hook(shm_associate, 0, shp, shmflg); |
20510f2f JM |
1274 | } |
1275 | ||
7191adff | 1276 | int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd) |
20510f2f | 1277 | { |
f25fce3e | 1278 | return call_int_hook(shm_shmctl, 0, shp, cmd); |
20510f2f JM |
1279 | } |
1280 | ||
7191adff | 1281 | int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg) |
20510f2f | 1282 | { |
f25fce3e | 1283 | return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg); |
20510f2f JM |
1284 | } |
1285 | ||
aefad959 | 1286 | int security_sem_alloc(struct kern_ipc_perm *sma) |
20510f2f | 1287 | { |
f25fce3e | 1288 | return call_int_hook(sem_alloc_security, 0, sma); |
20510f2f JM |
1289 | } |
1290 | ||
aefad959 | 1291 | void security_sem_free(struct kern_ipc_perm *sma) |
20510f2f | 1292 | { |
f25fce3e | 1293 | call_void_hook(sem_free_security, sma); |
20510f2f JM |
1294 | } |
1295 | ||
aefad959 | 1296 | int security_sem_associate(struct kern_ipc_perm *sma, int semflg) |
20510f2f | 1297 | { |
f25fce3e | 1298 | return call_int_hook(sem_associate, 0, sma, semflg); |
20510f2f JM |
1299 | } |
1300 | ||
aefad959 | 1301 | int security_sem_semctl(struct kern_ipc_perm *sma, int cmd) |
20510f2f | 1302 | { |
f25fce3e | 1303 | return call_int_hook(sem_semctl, 0, sma, cmd); |
20510f2f JM |
1304 | } |
1305 | ||
aefad959 | 1306 | int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, |
20510f2f JM |
1307 | unsigned nsops, int alter) |
1308 | { | |
f25fce3e | 1309 | return call_int_hook(sem_semop, 0, sma, sops, nsops, alter); |
20510f2f JM |
1310 | } |
1311 | ||
1312 | void security_d_instantiate(struct dentry *dentry, struct inode *inode) | |
1313 | { | |
1314 | if (unlikely(inode && IS_PRIVATE(inode))) | |
1315 | return; | |
f25fce3e | 1316 | call_void_hook(d_instantiate, dentry, inode); |
20510f2f JM |
1317 | } |
1318 | EXPORT_SYMBOL(security_d_instantiate); | |
1319 | ||
1320 | int security_getprocattr(struct task_struct *p, char *name, char **value) | |
1321 | { | |
b1d9e6b0 | 1322 | return call_int_hook(getprocattr, -EINVAL, p, name, value); |
20510f2f JM |
1323 | } |
1324 | ||
b21507e2 | 1325 | int security_setprocattr(const char *name, void *value, size_t size) |
20510f2f | 1326 | { |
b21507e2 | 1327 | return call_int_hook(setprocattr, -EINVAL, name, value, size); |
20510f2f JM |
1328 | } |
1329 | ||
1330 | int security_netlink_send(struct sock *sk, struct sk_buff *skb) | |
1331 | { | |
f25fce3e | 1332 | return call_int_hook(netlink_send, 0, sk, skb); |
20510f2f | 1333 | } |
20510f2f | 1334 | |
746df9b5 DQ |
1335 | int security_ismaclabel(const char *name) |
1336 | { | |
f25fce3e | 1337 | return call_int_hook(ismaclabel, 0, name); |
746df9b5 DQ |
1338 | } |
1339 | EXPORT_SYMBOL(security_ismaclabel); | |
1340 | ||
20510f2f JM |
1341 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
1342 | { | |
b1d9e6b0 CS |
1343 | return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata, |
1344 | seclen); | |
20510f2f JM |
1345 | } |
1346 | EXPORT_SYMBOL(security_secid_to_secctx); | |
1347 | ||
7bf570dc | 1348 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) |
63cb3449 | 1349 | { |
b1d9e6b0 | 1350 | *secid = 0; |
f25fce3e | 1351 | return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid); |
63cb3449 DH |
1352 | } |
1353 | EXPORT_SYMBOL(security_secctx_to_secid); | |
1354 | ||
20510f2f JM |
1355 | void security_release_secctx(char *secdata, u32 seclen) |
1356 | { | |
f25fce3e | 1357 | call_void_hook(release_secctx, secdata, seclen); |
20510f2f JM |
1358 | } |
1359 | EXPORT_SYMBOL(security_release_secctx); | |
1360 | ||
6f3be9f5 AG |
1361 | void security_inode_invalidate_secctx(struct inode *inode) |
1362 | { | |
1363 | call_void_hook(inode_invalidate_secctx, inode); | |
1364 | } | |
1365 | EXPORT_SYMBOL(security_inode_invalidate_secctx); | |
1366 | ||
1ee65e37 DQ |
1367 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) |
1368 | { | |
f25fce3e | 1369 | return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen); |
1ee65e37 DQ |
1370 | } |
1371 | EXPORT_SYMBOL(security_inode_notifysecctx); | |
1372 | ||
1373 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
1374 | { | |
f25fce3e | 1375 | return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen); |
1ee65e37 DQ |
1376 | } |
1377 | EXPORT_SYMBOL(security_inode_setsecctx); | |
1378 | ||
1379 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
1380 | { | |
b1d9e6b0 | 1381 | return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen); |
1ee65e37 DQ |
1382 | } |
1383 | EXPORT_SYMBOL(security_inode_getsecctx); | |
1384 | ||
20510f2f JM |
1385 | #ifdef CONFIG_SECURITY_NETWORK |
1386 | ||
3610cda5 | 1387 | int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) |
20510f2f | 1388 | { |
f25fce3e | 1389 | return call_int_hook(unix_stream_connect, 0, sock, other, newsk); |
20510f2f JM |
1390 | } |
1391 | EXPORT_SYMBOL(security_unix_stream_connect); | |
1392 | ||
1393 | int security_unix_may_send(struct socket *sock, struct socket *other) | |
1394 | { | |
f25fce3e | 1395 | return call_int_hook(unix_may_send, 0, sock, other); |
20510f2f JM |
1396 | } |
1397 | EXPORT_SYMBOL(security_unix_may_send); | |
1398 | ||
1399 | int security_socket_create(int family, int type, int protocol, int kern) | |
1400 | { | |
f25fce3e | 1401 | return call_int_hook(socket_create, 0, family, type, protocol, kern); |
20510f2f JM |
1402 | } |
1403 | ||
1404 | int security_socket_post_create(struct socket *sock, int family, | |
1405 | int type, int protocol, int kern) | |
1406 | { | |
f25fce3e | 1407 | return call_int_hook(socket_post_create, 0, sock, family, type, |
20510f2f JM |
1408 | protocol, kern); |
1409 | } | |
1410 | ||
aae7cfcb DH |
1411 | int security_socket_socketpair(struct socket *socka, struct socket *sockb) |
1412 | { | |
1413 | return call_int_hook(socket_socketpair, 0, socka, sockb); | |
1414 | } | |
1415 | EXPORT_SYMBOL(security_socket_socketpair); | |
1416 | ||
20510f2f JM |
1417 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) |
1418 | { | |
f25fce3e | 1419 | return call_int_hook(socket_bind, 0, sock, address, addrlen); |
20510f2f JM |
1420 | } |
1421 | ||
1422 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) | |
1423 | { | |
f25fce3e | 1424 | return call_int_hook(socket_connect, 0, sock, address, addrlen); |
20510f2f JM |
1425 | } |
1426 | ||
1427 | int security_socket_listen(struct socket *sock, int backlog) | |
1428 | { | |
f25fce3e | 1429 | return call_int_hook(socket_listen, 0, sock, backlog); |
20510f2f JM |
1430 | } |
1431 | ||
1432 | int security_socket_accept(struct socket *sock, struct socket *newsock) | |
1433 | { | |
f25fce3e | 1434 | return call_int_hook(socket_accept, 0, sock, newsock); |
20510f2f JM |
1435 | } |
1436 | ||
20510f2f JM |
1437 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) |
1438 | { | |
f25fce3e | 1439 | return call_int_hook(socket_sendmsg, 0, sock, msg, size); |
20510f2f JM |
1440 | } |
1441 | ||
1442 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
1443 | int size, int flags) | |
1444 | { | |
f25fce3e | 1445 | return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags); |
20510f2f JM |
1446 | } |
1447 | ||
1448 | int security_socket_getsockname(struct socket *sock) | |
1449 | { | |
f25fce3e | 1450 | return call_int_hook(socket_getsockname, 0, sock); |
20510f2f JM |
1451 | } |
1452 | ||
1453 | int security_socket_getpeername(struct socket *sock) | |
1454 | { | |
f25fce3e | 1455 | return call_int_hook(socket_getpeername, 0, sock); |
20510f2f JM |
1456 | } |
1457 | ||
1458 | int security_socket_getsockopt(struct socket *sock, int level, int optname) | |
1459 | { | |
f25fce3e | 1460 | return call_int_hook(socket_getsockopt, 0, sock, level, optname); |
20510f2f JM |
1461 | } |
1462 | ||
1463 | int security_socket_setsockopt(struct socket *sock, int level, int optname) | |
1464 | { | |
f25fce3e | 1465 | return call_int_hook(socket_setsockopt, 0, sock, level, optname); |
20510f2f JM |
1466 | } |
1467 | ||
1468 | int security_socket_shutdown(struct socket *sock, int how) | |
1469 | { | |
f25fce3e | 1470 | return call_int_hook(socket_shutdown, 0, sock, how); |
20510f2f JM |
1471 | } |
1472 | ||
1473 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) | |
1474 | { | |
f25fce3e | 1475 | return call_int_hook(socket_sock_rcv_skb, 0, sk, skb); |
20510f2f JM |
1476 | } |
1477 | EXPORT_SYMBOL(security_sock_rcv_skb); | |
1478 | ||
1479 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
1480 | int __user *optlen, unsigned len) | |
1481 | { | |
b1d9e6b0 CS |
1482 | return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock, |
1483 | optval, optlen, len); | |
20510f2f JM |
1484 | } |
1485 | ||
1486 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) | |
1487 | { | |
e308fd3b JB |
1488 | return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock, |
1489 | skb, secid); | |
20510f2f JM |
1490 | } |
1491 | EXPORT_SYMBOL(security_socket_getpeersec_dgram); | |
1492 | ||
1493 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority) | |
1494 | { | |
f25fce3e | 1495 | return call_int_hook(sk_alloc_security, 0, sk, family, priority); |
20510f2f JM |
1496 | } |
1497 | ||
1498 | void security_sk_free(struct sock *sk) | |
1499 | { | |
f25fce3e | 1500 | call_void_hook(sk_free_security, sk); |
20510f2f JM |
1501 | } |
1502 | ||
1503 | void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1504 | { | |
f25fce3e | 1505 | call_void_hook(sk_clone_security, sk, newsk); |
20510f2f | 1506 | } |
6230c9b4 | 1507 | EXPORT_SYMBOL(security_sk_clone); |
20510f2f JM |
1508 | |
1509 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl) | |
1510 | { | |
f25fce3e | 1511 | call_void_hook(sk_getsecid, sk, &fl->flowi_secid); |
20510f2f JM |
1512 | } |
1513 | EXPORT_SYMBOL(security_sk_classify_flow); | |
1514 | ||
1515 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
1516 | { | |
f25fce3e | 1517 | call_void_hook(req_classify_flow, req, fl); |
20510f2f JM |
1518 | } |
1519 | EXPORT_SYMBOL(security_req_classify_flow); | |
1520 | ||
1521 | void security_sock_graft(struct sock *sk, struct socket *parent) | |
1522 | { | |
f25fce3e | 1523 | call_void_hook(sock_graft, sk, parent); |
20510f2f JM |
1524 | } |
1525 | EXPORT_SYMBOL(security_sock_graft); | |
1526 | ||
1527 | int security_inet_conn_request(struct sock *sk, | |
1528 | struct sk_buff *skb, struct request_sock *req) | |
1529 | { | |
f25fce3e | 1530 | return call_int_hook(inet_conn_request, 0, sk, skb, req); |
20510f2f JM |
1531 | } |
1532 | EXPORT_SYMBOL(security_inet_conn_request); | |
1533 | ||
1534 | void security_inet_csk_clone(struct sock *newsk, | |
1535 | const struct request_sock *req) | |
1536 | { | |
f25fce3e | 1537 | call_void_hook(inet_csk_clone, newsk, req); |
20510f2f JM |
1538 | } |
1539 | ||
1540 | void security_inet_conn_established(struct sock *sk, | |
1541 | struct sk_buff *skb) | |
1542 | { | |
f25fce3e | 1543 | call_void_hook(inet_conn_established, sk, skb); |
20510f2f | 1544 | } |
72e89f50 | 1545 | EXPORT_SYMBOL(security_inet_conn_established); |
20510f2f | 1546 | |
2606fd1f EP |
1547 | int security_secmark_relabel_packet(u32 secid) |
1548 | { | |
f25fce3e | 1549 | return call_int_hook(secmark_relabel_packet, 0, secid); |
2606fd1f EP |
1550 | } |
1551 | EXPORT_SYMBOL(security_secmark_relabel_packet); | |
1552 | ||
1553 | void security_secmark_refcount_inc(void) | |
1554 | { | |
f25fce3e | 1555 | call_void_hook(secmark_refcount_inc); |
2606fd1f EP |
1556 | } |
1557 | EXPORT_SYMBOL(security_secmark_refcount_inc); | |
1558 | ||
1559 | void security_secmark_refcount_dec(void) | |
1560 | { | |
f25fce3e | 1561 | call_void_hook(secmark_refcount_dec); |
2606fd1f EP |
1562 | } |
1563 | EXPORT_SYMBOL(security_secmark_refcount_dec); | |
1564 | ||
5dbbaf2d PM |
1565 | int security_tun_dev_alloc_security(void **security) |
1566 | { | |
f25fce3e | 1567 | return call_int_hook(tun_dev_alloc_security, 0, security); |
5dbbaf2d PM |
1568 | } |
1569 | EXPORT_SYMBOL(security_tun_dev_alloc_security); | |
1570 | ||
1571 | void security_tun_dev_free_security(void *security) | |
1572 | { | |
f25fce3e | 1573 | call_void_hook(tun_dev_free_security, security); |
5dbbaf2d PM |
1574 | } |
1575 | EXPORT_SYMBOL(security_tun_dev_free_security); | |
1576 | ||
2b980dbd PM |
1577 | int security_tun_dev_create(void) |
1578 | { | |
f25fce3e | 1579 | return call_int_hook(tun_dev_create, 0); |
2b980dbd PM |
1580 | } |
1581 | EXPORT_SYMBOL(security_tun_dev_create); | |
1582 | ||
5dbbaf2d | 1583 | int security_tun_dev_attach_queue(void *security) |
2b980dbd | 1584 | { |
f25fce3e | 1585 | return call_int_hook(tun_dev_attach_queue, 0, security); |
2b980dbd | 1586 | } |
5dbbaf2d | 1587 | EXPORT_SYMBOL(security_tun_dev_attach_queue); |
2b980dbd | 1588 | |
5dbbaf2d | 1589 | int security_tun_dev_attach(struct sock *sk, void *security) |
2b980dbd | 1590 | { |
f25fce3e | 1591 | return call_int_hook(tun_dev_attach, 0, sk, security); |
2b980dbd PM |
1592 | } |
1593 | EXPORT_SYMBOL(security_tun_dev_attach); | |
1594 | ||
5dbbaf2d PM |
1595 | int security_tun_dev_open(void *security) |
1596 | { | |
f25fce3e | 1597 | return call_int_hook(tun_dev_open, 0, security); |
5dbbaf2d PM |
1598 | } |
1599 | EXPORT_SYMBOL(security_tun_dev_open); | |
1600 | ||
72e89f50 RH |
1601 | int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb) |
1602 | { | |
1603 | return call_int_hook(sctp_assoc_request, 0, ep, skb); | |
1604 | } | |
1605 | EXPORT_SYMBOL(security_sctp_assoc_request); | |
1606 | ||
1607 | int security_sctp_bind_connect(struct sock *sk, int optname, | |
1608 | struct sockaddr *address, int addrlen) | |
1609 | { | |
1610 | return call_int_hook(sctp_bind_connect, 0, sk, optname, | |
1611 | address, addrlen); | |
1612 | } | |
1613 | EXPORT_SYMBOL(security_sctp_bind_connect); | |
1614 | ||
1615 | void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk, | |
1616 | struct sock *newsk) | |
1617 | { | |
1618 | call_void_hook(sctp_sk_clone, ep, sk, newsk); | |
1619 | } | |
1620 | EXPORT_SYMBOL(security_sctp_sk_clone); | |
1621 | ||
20510f2f JM |
1622 | #endif /* CONFIG_SECURITY_NETWORK */ |
1623 | ||
d291f1a6 DJ |
1624 | #ifdef CONFIG_SECURITY_INFINIBAND |
1625 | ||
1626 | int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) | |
1627 | { | |
1628 | return call_int_hook(ib_pkey_access, 0, sec, subnet_prefix, pkey); | |
1629 | } | |
1630 | EXPORT_SYMBOL(security_ib_pkey_access); | |
1631 | ||
47a2b338 DJ |
1632 | int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) |
1633 | { | |
1634 | return call_int_hook(ib_endport_manage_subnet, 0, sec, dev_name, port_num); | |
1635 | } | |
1636 | EXPORT_SYMBOL(security_ib_endport_manage_subnet); | |
1637 | ||
d291f1a6 DJ |
1638 | int security_ib_alloc_security(void **sec) |
1639 | { | |
1640 | return call_int_hook(ib_alloc_security, 0, sec); | |
1641 | } | |
1642 | EXPORT_SYMBOL(security_ib_alloc_security); | |
1643 | ||
1644 | void security_ib_free_security(void *sec) | |
1645 | { | |
1646 | call_void_hook(ib_free_security, sec); | |
1647 | } | |
1648 | EXPORT_SYMBOL(security_ib_free_security); | |
1649 | #endif /* CONFIG_SECURITY_INFINIBAND */ | |
1650 | ||
20510f2f JM |
1651 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
1652 | ||
52a4c640 NA |
1653 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, |
1654 | struct xfrm_user_sec_ctx *sec_ctx, | |
1655 | gfp_t gfp) | |
20510f2f | 1656 | { |
f25fce3e | 1657 | return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp); |
20510f2f JM |
1658 | } |
1659 | EXPORT_SYMBOL(security_xfrm_policy_alloc); | |
1660 | ||
03e1ad7b PM |
1661 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, |
1662 | struct xfrm_sec_ctx **new_ctxp) | |
20510f2f | 1663 | { |
f25fce3e | 1664 | return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp); |
20510f2f JM |
1665 | } |
1666 | ||
03e1ad7b | 1667 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
20510f2f | 1668 | { |
f25fce3e | 1669 | call_void_hook(xfrm_policy_free_security, ctx); |
20510f2f JM |
1670 | } |
1671 | EXPORT_SYMBOL(security_xfrm_policy_free); | |
1672 | ||
03e1ad7b | 1673 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
20510f2f | 1674 | { |
f25fce3e | 1675 | return call_int_hook(xfrm_policy_delete_security, 0, ctx); |
20510f2f JM |
1676 | } |
1677 | ||
2e5aa866 PM |
1678 | int security_xfrm_state_alloc(struct xfrm_state *x, |
1679 | struct xfrm_user_sec_ctx *sec_ctx) | |
20510f2f | 1680 | { |
f25fce3e | 1681 | return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx); |
20510f2f JM |
1682 | } |
1683 | EXPORT_SYMBOL(security_xfrm_state_alloc); | |
1684 | ||
1685 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
1686 | struct xfrm_sec_ctx *polsec, u32 secid) | |
1687 | { | |
f25fce3e | 1688 | return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid); |
20510f2f JM |
1689 | } |
1690 | ||
1691 | int security_xfrm_state_delete(struct xfrm_state *x) | |
1692 | { | |
f25fce3e | 1693 | return call_int_hook(xfrm_state_delete_security, 0, x); |
20510f2f JM |
1694 | } |
1695 | EXPORT_SYMBOL(security_xfrm_state_delete); | |
1696 | ||
1697 | void security_xfrm_state_free(struct xfrm_state *x) | |
1698 | { | |
f25fce3e | 1699 | call_void_hook(xfrm_state_free_security, x); |
20510f2f JM |
1700 | } |
1701 | ||
03e1ad7b | 1702 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
20510f2f | 1703 | { |
f25fce3e | 1704 | return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir); |
20510f2f JM |
1705 | } |
1706 | ||
1707 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
e33f7704 DM |
1708 | struct xfrm_policy *xp, |
1709 | const struct flowi *fl) | |
20510f2f | 1710 | { |
b1d9e6b0 CS |
1711 | struct security_hook_list *hp; |
1712 | int rc = 1; | |
1713 | ||
1714 | /* | |
1715 | * Since this function is expected to return 0 or 1, the judgment | |
1716 | * becomes difficult if multiple LSMs supply this call. Fortunately, | |
1717 | * we can use the first LSM's judgment because currently only SELinux | |
1718 | * supplies this call. | |
1719 | * | |
1720 | * For speed optimization, we explicitly break the loop rather than | |
1721 | * using the macro | |
1722 | */ | |
df0ce173 | 1723 | hlist_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match, |
b1d9e6b0 CS |
1724 | list) { |
1725 | rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl); | |
1726 | break; | |
1727 | } | |
1728 | return rc; | |
20510f2f JM |
1729 | } |
1730 | ||
1731 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) | |
1732 | { | |
f25fce3e | 1733 | return call_int_hook(xfrm_decode_session, 0, skb, secid, 1); |
20510f2f JM |
1734 | } |
1735 | ||
1736 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) | |
1737 | { | |
f25fce3e CS |
1738 | int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid, |
1739 | 0); | |
20510f2f JM |
1740 | |
1741 | BUG_ON(rc); | |
1742 | } | |
1743 | EXPORT_SYMBOL(security_skb_classify_flow); | |
1744 | ||
1745 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ | |
1746 | ||
1747 | #ifdef CONFIG_KEYS | |
1748 | ||
d84f4f99 DH |
1749 | int security_key_alloc(struct key *key, const struct cred *cred, |
1750 | unsigned long flags) | |
20510f2f | 1751 | { |
f25fce3e | 1752 | return call_int_hook(key_alloc, 0, key, cred, flags); |
20510f2f JM |
1753 | } |
1754 | ||
1755 | void security_key_free(struct key *key) | |
1756 | { | |
f25fce3e | 1757 | call_void_hook(key_free, key); |
20510f2f JM |
1758 | } |
1759 | ||
1760 | int security_key_permission(key_ref_t key_ref, | |
f5895943 | 1761 | const struct cred *cred, unsigned perm) |
20510f2f | 1762 | { |
f25fce3e | 1763 | return call_int_hook(key_permission, 0, key_ref, cred, perm); |
20510f2f JM |
1764 | } |
1765 | ||
70a5bb72 DH |
1766 | int security_key_getsecurity(struct key *key, char **_buffer) |
1767 | { | |
b1d9e6b0 | 1768 | *_buffer = NULL; |
f25fce3e | 1769 | return call_int_hook(key_getsecurity, 0, key, _buffer); |
70a5bb72 DH |
1770 | } |
1771 | ||
20510f2f | 1772 | #endif /* CONFIG_KEYS */ |
03d37d25 AD |
1773 | |
1774 | #ifdef CONFIG_AUDIT | |
1775 | ||
1776 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) | |
1777 | { | |
f25fce3e | 1778 | return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule); |
03d37d25 AD |
1779 | } |
1780 | ||
1781 | int security_audit_rule_known(struct audit_krule *krule) | |
1782 | { | |
f25fce3e | 1783 | return call_int_hook(audit_rule_known, 0, krule); |
03d37d25 AD |
1784 | } |
1785 | ||
1786 | void security_audit_rule_free(void *lsmrule) | |
1787 | { | |
f25fce3e | 1788 | call_void_hook(audit_rule_free, lsmrule); |
03d37d25 AD |
1789 | } |
1790 | ||
1791 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
1792 | struct audit_context *actx) | |
1793 | { | |
f25fce3e CS |
1794 | return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule, |
1795 | actx); | |
03d37d25 | 1796 | } |
b1d9e6b0 | 1797 | #endif /* CONFIG_AUDIT */ |
afdb09c7 CF |
1798 | |
1799 | #ifdef CONFIG_BPF_SYSCALL | |
1800 | int security_bpf(int cmd, union bpf_attr *attr, unsigned int size) | |
1801 | { | |
1802 | return call_int_hook(bpf, 0, cmd, attr, size); | |
1803 | } | |
1804 | int security_bpf_map(struct bpf_map *map, fmode_t fmode) | |
1805 | { | |
1806 | return call_int_hook(bpf_map, 0, map, fmode); | |
1807 | } | |
1808 | int security_bpf_prog(struct bpf_prog *prog) | |
1809 | { | |
1810 | return call_int_hook(bpf_prog, 0, prog); | |
1811 | } | |
1812 | int security_bpf_map_alloc(struct bpf_map *map) | |
1813 | { | |
1814 | return call_int_hook(bpf_map_alloc_security, 0, map); | |
1815 | } | |
1816 | int security_bpf_prog_alloc(struct bpf_prog_aux *aux) | |
1817 | { | |
1818 | return call_int_hook(bpf_prog_alloc_security, 0, aux); | |
1819 | } | |
1820 | void security_bpf_map_free(struct bpf_map *map) | |
1821 | { | |
1822 | call_void_hook(bpf_map_free_security, map); | |
1823 | } | |
1824 | void security_bpf_prog_free(struct bpf_prog_aux *aux) | |
1825 | { | |
1826 | call_void_hook(bpf_prog_free_security, aux); | |
1827 | } | |
1828 | #endif /* CONFIG_BPF_SYSCALL */ |