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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 | ||
afdb09c7 | 15 | #include <linux/bpf.h> |
c59ede7b | 16 | #include <linux/capability.h> |
d47be3df | 17 | #include <linux/dcache.h> |
1da177e4 LT |
18 | #include <linux/module.h> |
19 | #include <linux/init.h> | |
20 | #include <linux/kernel.h> | |
3c4ed7bd | 21 | #include <linux/lsm_hooks.h> |
f381c272 | 22 | #include <linux/integrity.h> |
6c21a7fb | 23 | #include <linux/ima.h> |
3e1be52d | 24 | #include <linux/evm.h> |
40401530 | 25 | #include <linux/fsnotify.h> |
8b3ec681 AV |
26 | #include <linux/mman.h> |
27 | #include <linux/mount.h> | |
28 | #include <linux/personality.h> | |
75331a59 | 29 | #include <linux/backing-dev.h> |
3bb857e4 | 30 | #include <linux/string.h> |
7a90fc39 | 31 | #include <linux/msg.h> |
40401530 | 32 | #include <net/flow.h> |
7a90fc39 | 33 | #include <net/sock.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 | ||
ab9b110b | 43 | static struct kmem_cache *lsm_file_cache; |
7a90fc39 | 44 | static struct kmem_cache *lsm_inode_cache; |
ab9b110b | 45 | |
d69dece5 | 46 | char *lsm_names; |
f1efc8c4 CS |
47 | static struct lsm_blob_sizes blob_sizes; |
48 | ||
076c54c5 | 49 | /* Boot-time LSM user choice */ |
6e65f92f JJ |
50 | static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = |
51 | CONFIG_DEFAULT_SECURITY; | |
1da177e4 | 52 | |
1da177e4 LT |
53 | static void __init do_security_initcalls(void) |
54 | { | |
55 | initcall_t *call; | |
56 | call = __security_initcall_start; | |
57 | while (call < __security_initcall_end) { | |
58 | (*call) (); | |
59 | call++; | |
60 | } | |
61 | } | |
62 | ||
63 | /** | |
64 | * security_init - initializes the security framework | |
65 | * | |
66 | * This should be called early in the kernel initialization sequence. | |
67 | */ | |
68 | int __init security_init(void) | |
69 | { | |
3dfc9b02 TH |
70 | int i; |
71 | struct list_head *list = (struct list_head *) &security_hook_heads; | |
72 | ||
73 | for (i = 0; i < sizeof(security_hook_heads) / sizeof(struct list_head); | |
74 | i++) | |
75 | INIT_LIST_HEAD(&list[i]); | |
b1d9e6b0 | 76 | pr_info("Security Framework initialized\n"); |
1da177e4 | 77 | |
b1d9e6b0 | 78 | /* |
730daa16 | 79 | * Load minor LSMs, with the capability module always first. |
b1d9e6b0 CS |
80 | */ |
81 | capability_add_hooks(); | |
b1d9e6b0 | 82 | yama_add_hooks(); |
9b091556 | 83 | loadpin_add_hooks(); |
730daa16 | 84 | |
b1d9e6b0 | 85 | /* |
f1efc8c4 CS |
86 | * The first call to a module specific init function |
87 | * updates the blob size requirements. | |
88 | */ | |
89 | do_security_initcalls(); | |
90 | ||
ab9b110b CS |
91 | /* |
92 | * Create any kmem_caches needed for blobs | |
93 | */ | |
94 | if (blob_sizes.lbs_file) | |
95 | lsm_file_cache = kmem_cache_create("lsm_file_cache", | |
96 | blob_sizes.lbs_file, 0, | |
97 | SLAB_PANIC, NULL); | |
7a90fc39 CS |
98 | if (blob_sizes.lbs_inode) |
99 | lsm_inode_cache = kmem_cache_create("lsm_inode_cache", | |
100 | blob_sizes.lbs_inode, 0, | |
101 | SLAB_PANIC, NULL); | |
f1efc8c4 CS |
102 | /* |
103 | * The second call to a module specific init function | |
104 | * adds hooks to the hook lists and does any other early | |
105 | * initializations required. | |
b1d9e6b0 | 106 | */ |
1da177e4 LT |
107 | do_security_initcalls(); |
108 | ||
f1efc8c4 CS |
109 | #ifdef CONFIG_SECURITY_LSM_DEBUG |
110 | pr_info("LSM: cred blob size = %d\n", blob_sizes.lbs_cred); | |
ab9b110b | 111 | pr_info("LSM: file blob size = %d\n", blob_sizes.lbs_file); |
7a90fc39 CS |
112 | pr_info("LSM: inode blob size = %d\n", blob_sizes.lbs_inode); |
113 | pr_info("LSM: ipc blob size = %d\n", blob_sizes.lbs_ipc); | |
114 | #ifdef CONFIG_KEYS | |
115 | pr_info("LSM: key blob size = %d\n", blob_sizes.lbs_key); | |
116 | #endif /* CONFIG_KEYS */ | |
117 | pr_info("LSM: msg_msg blob size = %d\n", blob_sizes.lbs_msg_msg); | |
118 | pr_info("LSM: sock blob size = %d\n", blob_sizes.lbs_sock); | |
119 | pr_info("LSM: superblock blob size = %d\n", blob_sizes.lbs_superblock); | |
7f79f508 | 120 | pr_info("LSM: task blob size = %d\n", blob_sizes.lbs_task); |
7a90fc39 | 121 | #endif /* CONFIG_SECURITY_LSM_DEBUG */ |
f1efc8c4 | 122 | |
1da177e4 LT |
123 | return 0; |
124 | } | |
125 | ||
076c54c5 AD |
126 | /* Save user chosen LSM */ |
127 | static int __init choose_lsm(char *str) | |
128 | { | |
129 | strncpy(chosen_lsm, str, SECURITY_NAME_MAX); | |
130 | return 1; | |
131 | } | |
132 | __setup("security=", choose_lsm); | |
133 | ||
3bb857e4 MS |
134 | static bool match_last_lsm(const char *list, const char *lsm) |
135 | { | |
136 | const char *last; | |
137 | ||
138 | if (WARN_ON(!list || !lsm)) | |
139 | return false; | |
140 | last = strrchr(list, ','); | |
141 | if (last) | |
142 | /* Pass the comma, strcmp() will check for '\0' */ | |
143 | last++; | |
144 | else | |
145 | last = list; | |
146 | return !strcmp(last, lsm); | |
147 | } | |
148 | ||
d69dece5 CS |
149 | static int lsm_append(char *new, char **result) |
150 | { | |
151 | char *cp; | |
152 | ||
153 | if (*result == NULL) { | |
154 | *result = kstrdup(new, GFP_KERNEL); | |
155 | } else { | |
3bb857e4 MS |
156 | /* Check if it is the last registered name */ |
157 | if (match_last_lsm(*result, new)) | |
158 | return 0; | |
d69dece5 CS |
159 | cp = kasprintf(GFP_KERNEL, "%s,%s", *result, new); |
160 | if (cp == NULL) | |
161 | return -ENOMEM; | |
162 | kfree(*result); | |
163 | *result = cp; | |
164 | } | |
165 | return 0; | |
166 | } | |
167 | ||
076c54c5 AD |
168 | /** |
169 | * security_module_enable - Load given security module on boot ? | |
b1d9e6b0 | 170 | * @module: the name of the module |
076c54c5 AD |
171 | * |
172 | * Each LSM must pass this method before registering its own operations | |
173 | * to avoid security registration races. This method may also be used | |
7cea51be | 174 | * to check if your LSM is currently loaded during kernel initialization. |
076c54c5 | 175 | * |
0e056eb5 MCC |
176 | * Returns: |
177 | * | |
178 | * true if: | |
179 | * | |
180 | * - The passed LSM is the one chosen by user at boot time, | |
181 | * - or the passed LSM is configured as the default and the user did not | |
182 | * choose an alternate LSM at boot time. | |
183 | * | |
076c54c5 AD |
184 | * Otherwise, return false. |
185 | */ | |
b1d9e6b0 | 186 | int __init security_module_enable(const char *module) |
076c54c5 | 187 | { |
b1d9e6b0 | 188 | return !strcmp(module, chosen_lsm); |
076c54c5 AD |
189 | } |
190 | ||
d69dece5 CS |
191 | /** |
192 | * security_add_hooks - Add a modules hooks to the hook lists. | |
193 | * @hooks: the hooks to add | |
194 | * @count: the number of hooks to add | |
195 | * @lsm: the name of the security module | |
196 | * | |
197 | * Each LSM has to register its hooks with the infrastructure. | |
198 | */ | |
199 | void __init security_add_hooks(struct security_hook_list *hooks, int count, | |
200 | char *lsm) | |
201 | { | |
202 | int i; | |
203 | ||
204 | for (i = 0; i < count; i++) { | |
205 | hooks[i].lsm = lsm; | |
206 | list_add_tail_rcu(&hooks[i].list, hooks[i].head); | |
207 | } | |
208 | if (lsm_append(lsm, &lsm_names) < 0) | |
209 | panic("%s - Cannot get early memory.\n", __func__); | |
210 | } | |
211 | ||
8f408ab6 DJ |
212 | int call_lsm_notifier(enum lsm_event event, void *data) |
213 | { | |
214 | return atomic_notifier_call_chain(&lsm_notifier_chain, event, data); | |
215 | } | |
216 | EXPORT_SYMBOL(call_lsm_notifier); | |
217 | ||
218 | int register_lsm_notifier(struct notifier_block *nb) | |
219 | { | |
220 | return atomic_notifier_chain_register(&lsm_notifier_chain, nb); | |
221 | } | |
222 | EXPORT_SYMBOL(register_lsm_notifier); | |
223 | ||
224 | int unregister_lsm_notifier(struct notifier_block *nb) | |
225 | { | |
226 | return atomic_notifier_chain_unregister(&lsm_notifier_chain, nb); | |
227 | } | |
228 | EXPORT_SYMBOL(unregister_lsm_notifier); | |
229 | ||
f1efc8c4 CS |
230 | /** |
231 | * lsm_cred_alloc - allocate a composite cred blob | |
232 | * @cred: the cred that needs a blob | |
233 | * @gfp: allocation type | |
234 | * | |
235 | * Allocate the cred blob for all the modules | |
236 | * | |
237 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
238 | */ | |
239 | int lsm_cred_alloc(struct cred *cred, gfp_t gfp) | |
240 | { | |
241 | if (blob_sizes.lbs_cred == 0) { | |
242 | cred->security = NULL; | |
243 | return 0; | |
244 | } | |
245 | ||
246 | cred->security = kzalloc(blob_sizes.lbs_cred, gfp); | |
247 | if (cred->security == NULL) | |
248 | return -ENOMEM; | |
249 | return 0; | |
250 | } | |
251 | ||
252 | /** | |
253 | * lsm_early_cred - during initialization allocate a composite cred blob | |
254 | * @cred: the cred that needs a blob | |
255 | * | |
256 | * Allocate the cred blob for all the modules if it's not already there | |
257 | */ | |
258 | void lsm_early_cred(struct cred *cred) | |
259 | { | |
260 | int rc; | |
261 | ||
262 | if (cred == NULL) | |
263 | panic("%s: NULL cred.\n", __func__); | |
264 | if (cred->security != NULL) | |
265 | return; | |
266 | rc = lsm_cred_alloc(cred, GFP_KERNEL); | |
267 | if (rc) | |
268 | panic("%s: Early cred alloc failed.\n", __func__); | |
269 | } | |
270 | ||
271 | static void __init lsm_set_size(int *need, int *lbs) | |
272 | { | |
273 | int offset; | |
274 | ||
275 | if (*need > 0) { | |
276 | offset = *lbs; | |
277 | *lbs += *need; | |
278 | *need = offset; | |
279 | } | |
280 | } | |
281 | ||
282 | /** | |
283 | * security_add_blobs - Report blob sizes | |
284 | * @needed: the size of blobs needed by the module | |
285 | * | |
286 | * Each LSM has to register its blobs with the infrastructure. | |
287 | * The "needed" data tells the infrastructure how much memory | |
288 | * the module requires for each of its blobs. On return the | |
289 | * structure is filled with the offset that module should use | |
290 | * from the blob pointer. | |
291 | */ | |
292 | void __init security_add_blobs(struct lsm_blob_sizes *needed) | |
293 | { | |
294 | lsm_set_size(&needed->lbs_cred, &blob_sizes.lbs_cred); | |
ab9b110b | 295 | lsm_set_size(&needed->lbs_file, &blob_sizes.lbs_file); |
7a90fc39 CS |
296 | lsm_set_size(&needed->lbs_ipc, &blob_sizes.lbs_ipc); |
297 | lsm_set_size(&needed->lbs_key, &blob_sizes.lbs_key); | |
298 | lsm_set_size(&needed->lbs_msg_msg, &blob_sizes.lbs_msg_msg); | |
299 | lsm_set_size(&needed->lbs_sock, &blob_sizes.lbs_sock); | |
300 | lsm_set_size(&needed->lbs_superblock, &blob_sizes.lbs_superblock); | |
7f79f508 | 301 | lsm_set_size(&needed->lbs_task, &blob_sizes.lbs_task); |
7a90fc39 CS |
302 | /* |
303 | * The inode blob gets an rcu_head in addition to | |
304 | * what the modules might need. | |
305 | */ | |
306 | if (needed->lbs_inode && blob_sizes.lbs_inode == 0) | |
307 | blob_sizes.lbs_inode = sizeof(struct rcu_head); | |
308 | lsm_set_size(&needed->lbs_inode, &blob_sizes.lbs_inode); | |
ab9b110b CS |
309 | } |
310 | ||
311 | /** | |
312 | * lsm_file_alloc - allocate a composite file blob | |
313 | * @file: the file that needs a blob | |
314 | * | |
315 | * Allocate the file blob for all the modules | |
316 | * | |
317 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
318 | */ | |
319 | int lsm_file_alloc(struct file *file) | |
320 | { | |
321 | if (!lsm_file_cache) { | |
322 | file->f_security = NULL; | |
323 | return 0; | |
324 | } | |
325 | ||
326 | file->f_security = kmem_cache_zalloc(lsm_file_cache, GFP_KERNEL); | |
327 | if (file->f_security == NULL) | |
328 | return -ENOMEM; | |
329 | return 0; | |
f1efc8c4 CS |
330 | } |
331 | ||
7f79f508 CS |
332 | /** |
333 | * lsm_task_alloc - allocate a composite task blob | |
334 | * @task: the task that needs a blob | |
335 | * | |
336 | * Allocate the task blob for all the modules | |
337 | * | |
338 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
339 | */ | |
340 | int lsm_task_alloc(struct task_struct *task) | |
341 | { | |
342 | if (blob_sizes.lbs_task == 0) { | |
343 | task->security = NULL; | |
344 | return 0; | |
345 | } | |
346 | ||
347 | task->security = kzalloc(blob_sizes.lbs_task, GFP_KERNEL); | |
348 | if (task->security == NULL) | |
349 | return -ENOMEM; | |
350 | return 0; | |
351 | } | |
352 | ||
7a90fc39 CS |
353 | /** |
354 | * lsm_inode_alloc - allocate a composite inode blob | |
355 | * @inode: the inode that needs a blob | |
356 | * | |
357 | * Allocate the inode blob for all the modules | |
358 | * | |
359 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
360 | */ | |
361 | int lsm_inode_alloc(struct inode *inode) | |
362 | { | |
363 | if (!lsm_inode_cache) { | |
364 | inode->i_security = NULL; | |
365 | return 0; | |
366 | } | |
367 | ||
368 | inode->i_security = kmem_cache_zalloc(lsm_inode_cache, GFP_KERNEL); | |
369 | if (inode->i_security == NULL) | |
370 | return -ENOMEM; | |
371 | return 0; | |
372 | } | |
373 | ||
374 | /** | |
375 | * lsm_early_inode - during initialization allocate a composite inode blob | |
376 | * @inode: the inode that needs a blob | |
377 | * | |
378 | * Allocate the inode blob for all the modules if it's not already there | |
379 | */ | |
380 | void lsm_early_inode(struct inode *inode) | |
381 | { | |
382 | int rc; | |
383 | ||
384 | if (inode == NULL) | |
385 | panic("%s: NULL inode.\n", __func__); | |
386 | if (inode->i_security != NULL) | |
387 | return; | |
388 | rc = lsm_inode_alloc(inode); | |
389 | if (rc) | |
390 | panic("%s: Early inode alloc failed.\n", __func__); | |
391 | } | |
392 | ||
393 | /** | |
394 | * lsm_ipc_alloc - allocate a composite ipc blob | |
395 | * @kip: the ipc that needs a blob | |
396 | * | |
397 | * Allocate the ipc blob for all the modules | |
398 | * | |
399 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
400 | */ | |
401 | int lsm_ipc_alloc(struct kern_ipc_perm *kip) | |
402 | { | |
403 | if (blob_sizes.lbs_ipc == 0) { | |
404 | kip->security = NULL; | |
405 | return 0; | |
406 | } | |
407 | ||
408 | kip->security = kzalloc(blob_sizes.lbs_ipc, GFP_KERNEL); | |
409 | if (kip->security == NULL) | |
410 | return -ENOMEM; | |
411 | return 0; | |
412 | } | |
413 | ||
414 | #ifdef CONFIG_KEYS | |
415 | /** | |
416 | * lsm_key_alloc - allocate a composite key blob | |
417 | * @key: the key that needs a blob | |
418 | * | |
419 | * Allocate the key blob for all the modules | |
420 | * | |
421 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
422 | */ | |
423 | int lsm_key_alloc(struct key *key) | |
424 | { | |
425 | if (blob_sizes.lbs_key == 0) { | |
426 | key->security = NULL; | |
427 | return 0; | |
428 | } | |
429 | ||
430 | key->security = kzalloc(blob_sizes.lbs_key, GFP_KERNEL); | |
431 | if (key->security == NULL) | |
432 | return -ENOMEM; | |
433 | return 0; | |
434 | } | |
435 | #endif /* CONFIG_KEYS */ | |
436 | ||
437 | /** | |
438 | * lsm_msg_msg_alloc - allocate a composite msg_msg blob | |
439 | * @mp: the msg_msg that needs a blob | |
440 | * | |
441 | * Allocate the ipc blob for all the modules | |
442 | * | |
443 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
444 | */ | |
445 | int lsm_msg_msg_alloc(struct msg_msg *mp) | |
446 | { | |
447 | if (blob_sizes.lbs_msg_msg == 0) { | |
448 | mp->security = NULL; | |
449 | return 0; | |
450 | } | |
451 | ||
452 | mp->security = kzalloc(blob_sizes.lbs_msg_msg, GFP_KERNEL); | |
453 | if (mp->security == NULL) | |
454 | return -ENOMEM; | |
455 | return 0; | |
456 | } | |
457 | ||
458 | /** | |
459 | * lsm_sock_alloc - allocate a composite sock blob | |
460 | * @sock: the sock that needs a blob | |
461 | * @priority: allocation mode | |
462 | * | |
463 | * Allocate the sock blob for all the modules | |
464 | * | |
465 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
466 | */ | |
467 | int lsm_sock_alloc(struct sock *sock, gfp_t priority) | |
468 | { | |
469 | if (blob_sizes.lbs_sock == 0) { | |
470 | sock->sk_security = NULL; | |
471 | return 0; | |
472 | } | |
473 | ||
474 | sock->sk_security = kzalloc(blob_sizes.lbs_sock, priority); | |
475 | if (sock->sk_security == NULL) | |
476 | return -ENOMEM; | |
477 | return 0; | |
478 | } | |
479 | ||
480 | /** | |
481 | * lsm_superblock_alloc - allocate a composite superblock blob | |
482 | * @sb: the superblock that needs a blob | |
483 | * | |
484 | * Allocate the superblock blob for all the modules | |
485 | * | |
486 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
487 | */ | |
488 | int lsm_superblock_alloc(struct super_block *sb) | |
489 | { | |
490 | if (blob_sizes.lbs_superblock == 0) { | |
491 | sb->s_security = NULL; | |
492 | return 0; | |
493 | } | |
494 | ||
495 | sb->s_security = kzalloc(blob_sizes.lbs_superblock, GFP_KERNEL); | |
496 | if (sb->s_security == NULL) | |
497 | return -ENOMEM; | |
498 | return 0; | |
499 | } | |
500 | ||
f25fce3e | 501 | /* |
b1d9e6b0 | 502 | * Hook list operation macros. |
1da177e4 | 503 | * |
f25fce3e CS |
504 | * call_void_hook: |
505 | * This is a hook that does not return a value. | |
1da177e4 | 506 | * |
f25fce3e CS |
507 | * call_int_hook: |
508 | * This is a hook that returns a value. | |
1da177e4 | 509 | */ |
1da177e4 | 510 | |
b1d9e6b0 CS |
511 | #define call_void_hook(FUNC, ...) \ |
512 | do { \ | |
513 | struct security_hook_list *P; \ | |
514 | \ | |
515 | list_for_each_entry(P, &security_hook_heads.FUNC, list) \ | |
516 | P->hook.FUNC(__VA_ARGS__); \ | |
517 | } while (0) | |
518 | ||
519 | #define call_int_hook(FUNC, IRC, ...) ({ \ | |
520 | int RC = IRC; \ | |
521 | do { \ | |
522 | struct security_hook_list *P; \ | |
523 | \ | |
524 | list_for_each_entry(P, &security_hook_heads.FUNC, list) { \ | |
525 | RC = P->hook.FUNC(__VA_ARGS__); \ | |
526 | if (RC != 0) \ | |
527 | break; \ | |
528 | } \ | |
529 | } while (0); \ | |
530 | RC; \ | |
531 | }) | |
1da177e4 | 532 | |
20510f2f JM |
533 | /* Security operations */ |
534 | ||
79af7307 SS |
535 | int security_binder_set_context_mgr(struct task_struct *mgr) |
536 | { | |
f25fce3e | 537 | return call_int_hook(binder_set_context_mgr, 0, mgr); |
79af7307 SS |
538 | } |
539 | ||
540 | int security_binder_transaction(struct task_struct *from, | |
541 | struct task_struct *to) | |
542 | { | |
f25fce3e | 543 | return call_int_hook(binder_transaction, 0, from, to); |
79af7307 SS |
544 | } |
545 | ||
546 | int security_binder_transfer_binder(struct task_struct *from, | |
547 | struct task_struct *to) | |
548 | { | |
f25fce3e | 549 | return call_int_hook(binder_transfer_binder, 0, from, to); |
79af7307 SS |
550 | } |
551 | ||
552 | int security_binder_transfer_file(struct task_struct *from, | |
553 | struct task_struct *to, struct file *file) | |
554 | { | |
f25fce3e | 555 | return call_int_hook(binder_transfer_file, 0, from, to, file); |
79af7307 SS |
556 | } |
557 | ||
9e48858f | 558 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode) |
20510f2f | 559 | { |
f25fce3e | 560 | return call_int_hook(ptrace_access_check, 0, child, mode); |
5cd9c58f DH |
561 | } |
562 | ||
563 | int security_ptrace_traceme(struct task_struct *parent) | |
564 | { | |
f25fce3e | 565 | return call_int_hook(ptrace_traceme, 0, parent); |
20510f2f JM |
566 | } |
567 | ||
568 | int security_capget(struct task_struct *target, | |
569 | kernel_cap_t *effective, | |
570 | kernel_cap_t *inheritable, | |
571 | kernel_cap_t *permitted) | |
572 | { | |
f25fce3e CS |
573 | return call_int_hook(capget, 0, target, |
574 | effective, inheritable, permitted); | |
20510f2f JM |
575 | } |
576 | ||
d84f4f99 DH |
577 | int security_capset(struct cred *new, const struct cred *old, |
578 | const kernel_cap_t *effective, | |
579 | const kernel_cap_t *inheritable, | |
580 | const kernel_cap_t *permitted) | |
20510f2f | 581 | { |
f25fce3e CS |
582 | return call_int_hook(capset, 0, new, old, |
583 | effective, inheritable, permitted); | |
20510f2f JM |
584 | } |
585 | ||
b7e724d3 | 586 | int security_capable(const struct cred *cred, struct user_namespace *ns, |
3486740a | 587 | int cap) |
20510f2f | 588 | { |
f25fce3e | 589 | return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT); |
06112163 EP |
590 | } |
591 | ||
c7eba4a9 EP |
592 | int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, |
593 | int cap) | |
06112163 | 594 | { |
f25fce3e | 595 | return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT); |
20510f2f JM |
596 | } |
597 | ||
20510f2f JM |
598 | int security_quotactl(int cmds, int type, int id, struct super_block *sb) |
599 | { | |
f25fce3e | 600 | return call_int_hook(quotactl, 0, cmds, type, id, sb); |
20510f2f JM |
601 | } |
602 | ||
603 | int security_quota_on(struct dentry *dentry) | |
604 | { | |
f25fce3e | 605 | return call_int_hook(quota_on, 0, dentry); |
20510f2f JM |
606 | } |
607 | ||
12b3052c | 608 | int security_syslog(int type) |
20510f2f | 609 | { |
f25fce3e | 610 | return call_int_hook(syslog, 0, type); |
20510f2f JM |
611 | } |
612 | ||
457db29b | 613 | int security_settime64(const struct timespec64 *ts, const struct timezone *tz) |
20510f2f | 614 | { |
f25fce3e | 615 | return call_int_hook(settime, 0, ts, tz); |
20510f2f JM |
616 | } |
617 | ||
20510f2f JM |
618 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
619 | { | |
b1d9e6b0 CS |
620 | struct security_hook_list *hp; |
621 | int cap_sys_admin = 1; | |
622 | int rc; | |
623 | ||
624 | /* | |
625 | * The module will respond with a positive value if | |
626 | * it thinks the __vm_enough_memory() call should be | |
627 | * made with the cap_sys_admin set. If all of the modules | |
628 | * agree that it should be set it will. If any module | |
629 | * thinks it should not be set it won't. | |
630 | */ | |
631 | list_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) { | |
632 | rc = hp->hook.vm_enough_memory(mm, pages); | |
633 | if (rc <= 0) { | |
634 | cap_sys_admin = 0; | |
635 | break; | |
636 | } | |
637 | } | |
638 | return __vm_enough_memory(mm, pages, cap_sys_admin); | |
20510f2f JM |
639 | } |
640 | ||
a6f76f23 | 641 | int security_bprm_set_creds(struct linux_binprm *bprm) |
20510f2f | 642 | { |
f25fce3e | 643 | return call_int_hook(bprm_set_creds, 0, bprm); |
20510f2f JM |
644 | } |
645 | ||
a6f76f23 | 646 | int security_bprm_check(struct linux_binprm *bprm) |
20510f2f | 647 | { |
6c21a7fb MZ |
648 | int ret; |
649 | ||
f25fce3e | 650 | ret = call_int_hook(bprm_check_security, 0, bprm); |
6c21a7fb MZ |
651 | if (ret) |
652 | return ret; | |
653 | return ima_bprm_check(bprm); | |
20510f2f JM |
654 | } |
655 | ||
a6f76f23 | 656 | void security_bprm_committing_creds(struct linux_binprm *bprm) |
20510f2f | 657 | { |
f25fce3e | 658 | call_void_hook(bprm_committing_creds, bprm); |
20510f2f JM |
659 | } |
660 | ||
a6f76f23 | 661 | void security_bprm_committed_creds(struct linux_binprm *bprm) |
20510f2f | 662 | { |
f25fce3e | 663 | call_void_hook(bprm_committed_creds, bprm); |
20510f2f JM |
664 | } |
665 | ||
20510f2f JM |
666 | int security_sb_alloc(struct super_block *sb) |
667 | { | |
7a90fc39 CS |
668 | int rc = lsm_superblock_alloc(sb); |
669 | ||
670 | if (unlikely(rc)) | |
671 | return rc; | |
672 | rc = call_int_hook(sb_alloc_security, 0, sb); | |
673 | if (unlikely(rc)) | |
674 | security_sb_free(sb); | |
675 | return rc; | |
20510f2f JM |
676 | } |
677 | ||
678 | void security_sb_free(struct super_block *sb) | |
679 | { | |
f25fce3e | 680 | call_void_hook(sb_free_security, sb); |
7a90fc39 CS |
681 | kfree(sb->s_security); |
682 | sb->s_security = NULL; | |
20510f2f JM |
683 | } |
684 | ||
e0007529 | 685 | int security_sb_copy_data(char *orig, char *copy) |
20510f2f | 686 | { |
f25fce3e | 687 | return call_int_hook(sb_copy_data, 0, orig, copy); |
20510f2f | 688 | } |
e0007529 | 689 | EXPORT_SYMBOL(security_sb_copy_data); |
20510f2f | 690 | |
ff36fe2c EP |
691 | int security_sb_remount(struct super_block *sb, void *data) |
692 | { | |
f25fce3e | 693 | return call_int_hook(sb_remount, 0, sb, data); |
ff36fe2c EP |
694 | } |
695 | ||
12204e24 | 696 | int security_sb_kern_mount(struct super_block *sb, int flags, void *data) |
20510f2f | 697 | { |
f25fce3e | 698 | return call_int_hook(sb_kern_mount, 0, sb, flags, data); |
20510f2f JM |
699 | } |
700 | ||
2069f457 EP |
701 | int security_sb_show_options(struct seq_file *m, struct super_block *sb) |
702 | { | |
f25fce3e | 703 | return call_int_hook(sb_show_options, 0, m, sb); |
2069f457 EP |
704 | } |
705 | ||
20510f2f JM |
706 | int security_sb_statfs(struct dentry *dentry) |
707 | { | |
f25fce3e | 708 | return call_int_hook(sb_statfs, 0, dentry); |
20510f2f JM |
709 | } |
710 | ||
8a04c43b | 711 | int security_sb_mount(const char *dev_name, const struct path *path, |
808d4e3c | 712 | const char *type, unsigned long flags, void *data) |
20510f2f | 713 | { |
f25fce3e | 714 | return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data); |
20510f2f JM |
715 | } |
716 | ||
20510f2f JM |
717 | int security_sb_umount(struct vfsmount *mnt, int flags) |
718 | { | |
f25fce3e | 719 | return call_int_hook(sb_umount, 0, mnt, flags); |
20510f2f JM |
720 | } |
721 | ||
3b73b68c | 722 | int security_sb_pivotroot(const struct path *old_path, const struct path *new_path) |
20510f2f | 723 | { |
f25fce3e | 724 | return call_int_hook(sb_pivotroot, 0, old_path, new_path); |
20510f2f JM |
725 | } |
726 | ||
c9180a57 | 727 | int security_sb_set_mnt_opts(struct super_block *sb, |
649f6e77 DQ |
728 | struct security_mnt_opts *opts, |
729 | unsigned long kern_flags, | |
730 | unsigned long *set_kern_flags) | |
c9180a57 | 731 | { |
b1d9e6b0 CS |
732 | return call_int_hook(sb_set_mnt_opts, |
733 | opts->num_mnt_opts ? -EOPNOTSUPP : 0, sb, | |
734 | opts, kern_flags, set_kern_flags); | |
c9180a57 | 735 | } |
e0007529 | 736 | EXPORT_SYMBOL(security_sb_set_mnt_opts); |
c9180a57 | 737 | |
094f7b69 | 738 | int security_sb_clone_mnt_opts(const struct super_block *oldsb, |
0b4d3452 SM |
739 | struct super_block *newsb, |
740 | unsigned long kern_flags, | |
741 | unsigned long *set_kern_flags) | |
c9180a57 | 742 | { |
0b4d3452 SM |
743 | return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb, |
744 | kern_flags, set_kern_flags); | |
c9180a57 | 745 | } |
e0007529 EP |
746 | EXPORT_SYMBOL(security_sb_clone_mnt_opts); |
747 | ||
748 | int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) | |
749 | { | |
f25fce3e | 750 | return call_int_hook(sb_parse_opts_str, 0, options, opts); |
e0007529 EP |
751 | } |
752 | EXPORT_SYMBOL(security_sb_parse_opts_str); | |
c9180a57 | 753 | |
20510f2f JM |
754 | int security_inode_alloc(struct inode *inode) |
755 | { | |
7a90fc39 CS |
756 | int rc = lsm_inode_alloc(inode); |
757 | ||
758 | if (unlikely(rc)) | |
759 | return rc; | |
760 | rc = call_int_hook(inode_alloc_security, 0, inode); | |
761 | if (unlikely(rc)) | |
762 | security_inode_free(inode); | |
763 | return rc; | |
764 | } | |
765 | ||
766 | static void inode_free_by_rcu(struct rcu_head *head) | |
767 | { | |
768 | /* | |
769 | * The rcu head is at the start of the inode blob | |
770 | */ | |
771 | kmem_cache_free(lsm_inode_cache, head); | |
20510f2f JM |
772 | } |
773 | ||
774 | void security_inode_free(struct inode *inode) | |
775 | { | |
f381c272 | 776 | integrity_inode_free(inode); |
f25fce3e | 777 | call_void_hook(inode_free_security, inode); |
7a90fc39 CS |
778 | /* |
779 | * The inode may still be referenced in a path walk and | |
780 | * a call to security_inode_permission() can be made | |
781 | * after inode_free_security() is called. Ideally, the VFS | |
782 | * wouldn't do this, but fixing that is a much harder | |
783 | * job. For now, simply free the i_security via RCU, and | |
784 | * leave the current inode->i_security pointer intact. | |
785 | * The inode will be freed after the RCU grace period too. | |
786 | */ | |
787 | if (inode->i_security) | |
788 | call_rcu((struct rcu_head *)inode->i_security, | |
789 | inode_free_by_rcu); | |
20510f2f JM |
790 | } |
791 | ||
d47be3df | 792 | int security_dentry_init_security(struct dentry *dentry, int mode, |
4f3ccd76 | 793 | const struct qstr *name, void **ctx, |
d47be3df DQ |
794 | u32 *ctxlen) |
795 | { | |
b1d9e6b0 CS |
796 | return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode, |
797 | name, ctx, ctxlen); | |
d47be3df DQ |
798 | } |
799 | EXPORT_SYMBOL(security_dentry_init_security); | |
800 | ||
2602625b VG |
801 | int security_dentry_create_files_as(struct dentry *dentry, int mode, |
802 | struct qstr *name, | |
803 | const struct cred *old, struct cred *new) | |
804 | { | |
805 | return call_int_hook(dentry_create_files_as, 0, dentry, mode, | |
806 | name, old, new); | |
807 | } | |
808 | EXPORT_SYMBOL(security_dentry_create_files_as); | |
809 | ||
20510f2f | 810 | int security_inode_init_security(struct inode *inode, struct inode *dir, |
9d8f13ba MZ |
811 | const struct qstr *qstr, |
812 | const initxattrs initxattrs, void *fs_data) | |
20510f2f | 813 | { |
823eb1cc MZ |
814 | struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1]; |
815 | struct xattr *lsm_xattr, *evm_xattr, *xattr; | |
9d8f13ba MZ |
816 | int ret; |
817 | ||
20510f2f | 818 | if (unlikely(IS_PRIVATE(inode))) |
fb88c2b6 | 819 | return 0; |
9d8f13ba | 820 | |
9d8f13ba | 821 | if (!initxattrs) |
e308fd3b JB |
822 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, |
823 | dir, qstr, NULL, NULL, NULL); | |
9548906b | 824 | memset(new_xattrs, 0, sizeof(new_xattrs)); |
9d8f13ba | 825 | lsm_xattr = new_xattrs; |
b1d9e6b0 | 826 | ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr, |
9d8f13ba MZ |
827 | &lsm_xattr->name, |
828 | &lsm_xattr->value, | |
829 | &lsm_xattr->value_len); | |
830 | if (ret) | |
831 | goto out; | |
823eb1cc MZ |
832 | |
833 | evm_xattr = lsm_xattr + 1; | |
834 | ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr); | |
835 | if (ret) | |
836 | goto out; | |
9d8f13ba MZ |
837 | ret = initxattrs(inode, new_xattrs, fs_data); |
838 | out: | |
9548906b | 839 | for (xattr = new_xattrs; xattr->value != NULL; xattr++) |
823eb1cc | 840 | kfree(xattr->value); |
9d8f13ba MZ |
841 | return (ret == -EOPNOTSUPP) ? 0 : ret; |
842 | } | |
843 | EXPORT_SYMBOL(security_inode_init_security); | |
844 | ||
845 | int security_old_inode_init_security(struct inode *inode, struct inode *dir, | |
9548906b | 846 | const struct qstr *qstr, const char **name, |
9d8f13ba | 847 | void **value, size_t *len) |
20510f2f JM |
848 | { |
849 | if (unlikely(IS_PRIVATE(inode))) | |
30e05324 | 850 | return -EOPNOTSUPP; |
e308fd3b JB |
851 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, |
852 | qstr, name, value, len); | |
20510f2f | 853 | } |
9d8f13ba | 854 | EXPORT_SYMBOL(security_old_inode_init_security); |
20510f2f | 855 | |
be6d3e56 | 856 | #ifdef CONFIG_SECURITY_PATH |
d3607752 | 857 | int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, |
be6d3e56 KT |
858 | unsigned int dev) |
859 | { | |
c6f493d6 | 860 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 861 | return 0; |
f25fce3e | 862 | return call_int_hook(path_mknod, 0, dir, dentry, mode, dev); |
be6d3e56 KT |
863 | } |
864 | EXPORT_SYMBOL(security_path_mknod); | |
865 | ||
d3607752 | 866 | int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode) |
be6d3e56 | 867 | { |
c6f493d6 | 868 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 869 | return 0; |
f25fce3e | 870 | return call_int_hook(path_mkdir, 0, dir, dentry, mode); |
be6d3e56 | 871 | } |
82140443 | 872 | EXPORT_SYMBOL(security_path_mkdir); |
be6d3e56 | 873 | |
989f74e0 | 874 | int security_path_rmdir(const struct path *dir, struct dentry *dentry) |
be6d3e56 | 875 | { |
c6f493d6 | 876 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 877 | return 0; |
f25fce3e | 878 | return call_int_hook(path_rmdir, 0, dir, dentry); |
be6d3e56 | 879 | } |
c088e31d | 880 | EXPORT_SYMBOL_GPL(security_path_rmdir); |
be6d3e56 | 881 | |
989f74e0 | 882 | int security_path_unlink(const struct path *dir, struct dentry *dentry) |
be6d3e56 | 883 | { |
c6f493d6 | 884 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 885 | return 0; |
f25fce3e | 886 | return call_int_hook(path_unlink, 0, dir, dentry); |
be6d3e56 | 887 | } |
82140443 | 888 | EXPORT_SYMBOL(security_path_unlink); |
be6d3e56 | 889 | |
d3607752 | 890 | int security_path_symlink(const struct path *dir, struct dentry *dentry, |
be6d3e56 KT |
891 | const char *old_name) |
892 | { | |
c6f493d6 | 893 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 894 | return 0; |
f25fce3e | 895 | return call_int_hook(path_symlink, 0, dir, dentry, old_name); |
be6d3e56 | 896 | } |
c088e31d | 897 | EXPORT_SYMBOL_GPL(security_path_symlink); |
be6d3e56 | 898 | |
3ccee46a | 899 | int security_path_link(struct dentry *old_dentry, const struct path *new_dir, |
be6d3e56 KT |
900 | struct dentry *new_dentry) |
901 | { | |
c6f493d6 | 902 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
be6d3e56 | 903 | return 0; |
f25fce3e | 904 | return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry); |
be6d3e56 | 905 | } |
c088e31d | 906 | EXPORT_SYMBOL_GPL(security_path_link); |
be6d3e56 | 907 | |
3ccee46a AV |
908 | int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, |
909 | const struct path *new_dir, struct dentry *new_dentry, | |
0b3974eb | 910 | unsigned int flags) |
be6d3e56 | 911 | { |
c6f493d6 DH |
912 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
913 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
be6d3e56 | 914 | return 0; |
da1ce067 MS |
915 | |
916 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e CS |
917 | int err = call_int_hook(path_rename, 0, new_dir, new_dentry, |
918 | old_dir, old_dentry); | |
da1ce067 MS |
919 | if (err) |
920 | return err; | |
921 | } | |
922 | ||
f25fce3e CS |
923 | return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir, |
924 | new_dentry); | |
be6d3e56 | 925 | } |
82140443 | 926 | EXPORT_SYMBOL(security_path_rename); |
be6d3e56 | 927 | |
81f4c506 | 928 | int security_path_truncate(const struct path *path) |
be6d3e56 | 929 | { |
c6f493d6 | 930 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
be6d3e56 | 931 | return 0; |
f25fce3e | 932 | return call_int_hook(path_truncate, 0, path); |
be6d3e56 | 933 | } |
c088e31d | 934 | EXPORT_SYMBOL_GPL(security_path_truncate); |
89eda068 | 935 | |
be01f9f2 | 936 | int security_path_chmod(const struct path *path, umode_t mode) |
89eda068 | 937 | { |
c6f493d6 | 938 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 939 | return 0; |
f25fce3e | 940 | return call_int_hook(path_chmod, 0, path, mode); |
89eda068 | 941 | } |
c088e31d | 942 | EXPORT_SYMBOL_GPL(security_path_chmod); |
89eda068 | 943 | |
7fd25dac | 944 | int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) |
89eda068 | 945 | { |
c6f493d6 | 946 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 947 | return 0; |
f25fce3e | 948 | return call_int_hook(path_chown, 0, path, uid, gid); |
89eda068 | 949 | } |
c088e31d | 950 | EXPORT_SYMBOL_GPL(security_path_chown); |
8b8efb44 | 951 | |
77b286c0 | 952 | int security_path_chroot(const struct path *path) |
8b8efb44 | 953 | { |
f25fce3e | 954 | return call_int_hook(path_chroot, 0, path); |
8b8efb44 | 955 | } |
be6d3e56 KT |
956 | #endif |
957 | ||
4acdaf27 | 958 | int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
959 | { |
960 | if (unlikely(IS_PRIVATE(dir))) | |
961 | return 0; | |
f25fce3e | 962 | return call_int_hook(inode_create, 0, dir, dentry, mode); |
20510f2f | 963 | } |
800a9647 | 964 | EXPORT_SYMBOL_GPL(security_inode_create); |
20510f2f JM |
965 | |
966 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, | |
967 | struct dentry *new_dentry) | |
968 | { | |
c6f493d6 | 969 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
20510f2f | 970 | return 0; |
f25fce3e | 971 | return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry); |
20510f2f JM |
972 | } |
973 | ||
974 | int security_inode_unlink(struct inode *dir, struct dentry *dentry) | |
975 | { | |
c6f493d6 | 976 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 977 | return 0; |
f25fce3e | 978 | return call_int_hook(inode_unlink, 0, dir, dentry); |
20510f2f JM |
979 | } |
980 | ||
981 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
982 | const char *old_name) | |
983 | { | |
984 | if (unlikely(IS_PRIVATE(dir))) | |
985 | return 0; | |
f25fce3e | 986 | return call_int_hook(inode_symlink, 0, dir, dentry, old_name); |
20510f2f JM |
987 | } |
988 | ||
18bb1db3 | 989 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
990 | { |
991 | if (unlikely(IS_PRIVATE(dir))) | |
992 | return 0; | |
f25fce3e | 993 | return call_int_hook(inode_mkdir, 0, dir, dentry, mode); |
20510f2f | 994 | } |
800a9647 | 995 | EXPORT_SYMBOL_GPL(security_inode_mkdir); |
20510f2f JM |
996 | |
997 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry) | |
998 | { | |
c6f493d6 | 999 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1000 | return 0; |
f25fce3e | 1001 | return call_int_hook(inode_rmdir, 0, dir, dentry); |
20510f2f JM |
1002 | } |
1003 | ||
1a67aafb | 1004 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) |
20510f2f JM |
1005 | { |
1006 | if (unlikely(IS_PRIVATE(dir))) | |
1007 | return 0; | |
f25fce3e | 1008 | return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev); |
20510f2f JM |
1009 | } |
1010 | ||
1011 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, | |
0b3974eb MS |
1012 | struct inode *new_dir, struct dentry *new_dentry, |
1013 | unsigned int flags) | |
20510f2f | 1014 | { |
c6f493d6 DH |
1015 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
1016 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
20510f2f | 1017 | return 0; |
da1ce067 MS |
1018 | |
1019 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e | 1020 | int err = call_int_hook(inode_rename, 0, new_dir, new_dentry, |
da1ce067 MS |
1021 | old_dir, old_dentry); |
1022 | if (err) | |
1023 | return err; | |
1024 | } | |
1025 | ||
f25fce3e | 1026 | return call_int_hook(inode_rename, 0, old_dir, old_dentry, |
20510f2f JM |
1027 | new_dir, new_dentry); |
1028 | } | |
1029 | ||
1030 | int security_inode_readlink(struct dentry *dentry) | |
1031 | { | |
c6f493d6 | 1032 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1033 | return 0; |
f25fce3e | 1034 | return call_int_hook(inode_readlink, 0, dentry); |
20510f2f | 1035 | } |
c088e31d | 1036 | EXPORT_SYMBOL_GPL(security_inode_readlink); |
20510f2f | 1037 | |
bda0be7a N |
1038 | int security_inode_follow_link(struct dentry *dentry, struct inode *inode, |
1039 | bool rcu) | |
20510f2f | 1040 | { |
bda0be7a | 1041 | if (unlikely(IS_PRIVATE(inode))) |
20510f2f | 1042 | return 0; |
e22619a2 | 1043 | return call_int_hook(inode_follow_link, 0, dentry, inode, rcu); |
20510f2f JM |
1044 | } |
1045 | ||
b77b0646 | 1046 | int security_inode_permission(struct inode *inode, int mask) |
20510f2f JM |
1047 | { |
1048 | if (unlikely(IS_PRIVATE(inode))) | |
1049 | return 0; | |
f25fce3e | 1050 | return call_int_hook(inode_permission, 0, inode, mask); |
20510f2f | 1051 | } |
c088e31d | 1052 | EXPORT_SYMBOL_GPL(security_inode_permission); |
20510f2f JM |
1053 | |
1054 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr) | |
1055 | { | |
817b54aa MZ |
1056 | int ret; |
1057 | ||
c6f493d6 | 1058 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1059 | return 0; |
f25fce3e | 1060 | ret = call_int_hook(inode_setattr, 0, dentry, attr); |
817b54aa MZ |
1061 | if (ret) |
1062 | return ret; | |
1063 | return evm_inode_setattr(dentry, attr); | |
20510f2f | 1064 | } |
b1da47e2 | 1065 | EXPORT_SYMBOL_GPL(security_inode_setattr); |
20510f2f | 1066 | |
3f7036a0 | 1067 | int security_inode_getattr(const struct path *path) |
20510f2f | 1068 | { |
c6f493d6 | 1069 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
20510f2f | 1070 | return 0; |
f25fce3e | 1071 | return call_int_hook(inode_getattr, 0, path); |
20510f2f JM |
1072 | } |
1073 | ||
8f0cfa52 DH |
1074 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
1075 | const void *value, size_t size, int flags) | |
20510f2f | 1076 | { |
3e1be52d MZ |
1077 | int ret; |
1078 | ||
c6f493d6 | 1079 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1080 | return 0; |
b1d9e6b0 CS |
1081 | /* |
1082 | * SELinux and Smack integrate the cap call, | |
1083 | * so assume that all LSMs supplying this call do so. | |
1084 | */ | |
1085 | ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size, | |
f25fce3e | 1086 | flags); |
b1d9e6b0 CS |
1087 | |
1088 | if (ret == 1) | |
1089 | ret = cap_inode_setxattr(dentry, name, value, size, flags); | |
42c63330 MZ |
1090 | if (ret) |
1091 | return ret; | |
1092 | ret = ima_inode_setxattr(dentry, name, value, size); | |
3e1be52d MZ |
1093 | if (ret) |
1094 | return ret; | |
1095 | return evm_inode_setxattr(dentry, name, value, size); | |
20510f2f JM |
1096 | } |
1097 | ||
8f0cfa52 DH |
1098 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, |
1099 | const void *value, size_t size, int flags) | |
20510f2f | 1100 | { |
c6f493d6 | 1101 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1102 | return; |
f25fce3e | 1103 | call_void_hook(inode_post_setxattr, dentry, name, value, size, flags); |
3e1be52d | 1104 | evm_inode_post_setxattr(dentry, name, value, size); |
20510f2f JM |
1105 | } |
1106 | ||
8f0cfa52 | 1107 | int security_inode_getxattr(struct dentry *dentry, const char *name) |
20510f2f | 1108 | { |
c6f493d6 | 1109 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1110 | return 0; |
f25fce3e | 1111 | return call_int_hook(inode_getxattr, 0, dentry, name); |
20510f2f JM |
1112 | } |
1113 | ||
1114 | int security_inode_listxattr(struct dentry *dentry) | |
1115 | { | |
c6f493d6 | 1116 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1117 | return 0; |
f25fce3e | 1118 | return call_int_hook(inode_listxattr, 0, dentry); |
20510f2f JM |
1119 | } |
1120 | ||
8f0cfa52 | 1121 | int security_inode_removexattr(struct dentry *dentry, const char *name) |
20510f2f | 1122 | { |
3e1be52d MZ |
1123 | int ret; |
1124 | ||
c6f493d6 | 1125 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1126 | return 0; |
b1d9e6b0 CS |
1127 | /* |
1128 | * SELinux and Smack integrate the cap call, | |
1129 | * so assume that all LSMs supplying this call do so. | |
1130 | */ | |
1131 | ret = call_int_hook(inode_removexattr, 1, dentry, name); | |
1132 | if (ret == 1) | |
1133 | ret = cap_inode_removexattr(dentry, name); | |
42c63330 MZ |
1134 | if (ret) |
1135 | return ret; | |
1136 | ret = ima_inode_removexattr(dentry, name); | |
3e1be52d MZ |
1137 | if (ret) |
1138 | return ret; | |
1139 | return evm_inode_removexattr(dentry, name); | |
20510f2f JM |
1140 | } |
1141 | ||
b5376771 SH |
1142 | int security_inode_need_killpriv(struct dentry *dentry) |
1143 | { | |
f25fce3e | 1144 | return call_int_hook(inode_need_killpriv, 0, dentry); |
b5376771 SH |
1145 | } |
1146 | ||
1147 | int security_inode_killpriv(struct dentry *dentry) | |
1148 | { | |
f25fce3e | 1149 | return call_int_hook(inode_killpriv, 0, dentry); |
b5376771 SH |
1150 | } |
1151 | ||
ea861dfd | 1152 | int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc) |
20510f2f | 1153 | { |
2885c1e3 CS |
1154 | struct security_hook_list *hp; |
1155 | int rc; | |
1156 | ||
20510f2f | 1157 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 1158 | return -EOPNOTSUPP; |
2885c1e3 CS |
1159 | /* |
1160 | * Only one module will provide an attribute with a given name. | |
1161 | */ | |
1162 | list_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) { | |
1163 | rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc); | |
1164 | if (rc != -EOPNOTSUPP) | |
1165 | return rc; | |
1166 | } | |
1167 | return -EOPNOTSUPP; | |
20510f2f JM |
1168 | } |
1169 | ||
1170 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
1171 | { | |
2885c1e3 CS |
1172 | struct security_hook_list *hp; |
1173 | int rc; | |
1174 | ||
20510f2f | 1175 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 1176 | return -EOPNOTSUPP; |
2885c1e3 CS |
1177 | /* |
1178 | * Only one module will provide an attribute with a given name. | |
1179 | */ | |
1180 | list_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) { | |
1181 | rc = hp->hook.inode_setsecurity(inode, name, value, size, | |
1182 | flags); | |
1183 | if (rc != -EOPNOTSUPP) | |
1184 | return rc; | |
1185 | } | |
1186 | return -EOPNOTSUPP; | |
20510f2f JM |
1187 | } |
1188 | ||
1189 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
1190 | { | |
1191 | if (unlikely(IS_PRIVATE(inode))) | |
1192 | return 0; | |
f25fce3e | 1193 | return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size); |
20510f2f | 1194 | } |
c9bccef6 | 1195 | EXPORT_SYMBOL(security_inode_listsecurity); |
20510f2f | 1196 | |
d6335d77 | 1197 | void security_inode_getsecid(struct inode *inode, u32 *secid) |
8a076191 | 1198 | { |
f25fce3e | 1199 | call_void_hook(inode_getsecid, inode, secid); |
8a076191 AD |
1200 | } |
1201 | ||
d8ad8b49 VG |
1202 | int security_inode_copy_up(struct dentry *src, struct cred **new) |
1203 | { | |
1204 | return call_int_hook(inode_copy_up, 0, src, new); | |
1205 | } | |
1206 | EXPORT_SYMBOL(security_inode_copy_up); | |
1207 | ||
121ab822 VG |
1208 | int security_inode_copy_up_xattr(const char *name) |
1209 | { | |
1210 | return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name); | |
1211 | } | |
1212 | EXPORT_SYMBOL(security_inode_copy_up_xattr); | |
1213 | ||
20510f2f JM |
1214 | int security_file_permission(struct file *file, int mask) |
1215 | { | |
c4ec54b4 EP |
1216 | int ret; |
1217 | ||
f25fce3e | 1218 | ret = call_int_hook(file_permission, 0, file, mask); |
c4ec54b4 EP |
1219 | if (ret) |
1220 | return ret; | |
1221 | ||
1222 | return fsnotify_perm(file, mask); | |
20510f2f | 1223 | } |
c088e31d | 1224 | EXPORT_SYMBOL_GPL(security_file_permission); |
20510f2f JM |
1225 | |
1226 | int security_file_alloc(struct file *file) | |
1227 | { | |
ab9b110b CS |
1228 | int rc = lsm_file_alloc(file); |
1229 | ||
7a90fc39 | 1230 | if (unlikely(rc)) |
ab9b110b CS |
1231 | return rc; |
1232 | rc = call_int_hook(file_alloc_security, 0, file); | |
1233 | if (unlikely(rc)) | |
1234 | security_file_free(file); | |
1235 | return rc; | |
20510f2f JM |
1236 | } |
1237 | ||
1238 | void security_file_free(struct file *file) | |
1239 | { | |
ab9b110b CS |
1240 | void *blob; |
1241 | ||
1242 | if (!lsm_file_cache) | |
1243 | return; | |
1244 | ||
f25fce3e | 1245 | call_void_hook(file_free_security, file); |
ab9b110b CS |
1246 | |
1247 | blob = file->f_security; | |
1248 | file->f_security = NULL; | |
1249 | kmem_cache_free(lsm_file_cache, blob); | |
20510f2f JM |
1250 | } |
1251 | ||
1252 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
1253 | { | |
f25fce3e | 1254 | return call_int_hook(file_ioctl, 0, file, cmd, arg); |
20510f2f JM |
1255 | } |
1256 | ||
98de59bf | 1257 | static inline unsigned long mmap_prot(struct file *file, unsigned long prot) |
20510f2f | 1258 | { |
8b3ec681 | 1259 | /* |
98de59bf AV |
1260 | * Does we have PROT_READ and does the application expect |
1261 | * it to imply PROT_EXEC? If not, nothing to talk about... | |
8b3ec681 | 1262 | */ |
98de59bf AV |
1263 | if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ) |
1264 | return prot; | |
8b3ec681 | 1265 | if (!(current->personality & READ_IMPLIES_EXEC)) |
98de59bf AV |
1266 | return prot; |
1267 | /* | |
1268 | * if that's an anonymous mapping, let it. | |
1269 | */ | |
1270 | if (!file) | |
1271 | return prot | PROT_EXEC; | |
1272 | /* | |
1273 | * ditto if it's not on noexec mount, except that on !MMU we need | |
b4caecd4 | 1274 | * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case |
98de59bf | 1275 | */ |
90f8572b | 1276 | if (!path_noexec(&file->f_path)) { |
8b3ec681 | 1277 | #ifndef CONFIG_MMU |
b4caecd4 CH |
1278 | if (file->f_op->mmap_capabilities) { |
1279 | unsigned caps = file->f_op->mmap_capabilities(file); | |
1280 | if (!(caps & NOMMU_MAP_EXEC)) | |
1281 | return prot; | |
1282 | } | |
8b3ec681 | 1283 | #endif |
98de59bf | 1284 | return prot | PROT_EXEC; |
8b3ec681 | 1285 | } |
98de59bf AV |
1286 | /* anything on noexec mount won't get PROT_EXEC */ |
1287 | return prot; | |
1288 | } | |
1289 | ||
1290 | int security_mmap_file(struct file *file, unsigned long prot, | |
1291 | unsigned long flags) | |
1292 | { | |
1293 | int ret; | |
f25fce3e | 1294 | ret = call_int_hook(mmap_file, 0, file, prot, |
98de59bf | 1295 | mmap_prot(file, prot), flags); |
6c21a7fb MZ |
1296 | if (ret) |
1297 | return ret; | |
1298 | return ima_file_mmap(file, prot); | |
20510f2f | 1299 | } |
c088e31d | 1300 | EXPORT_SYMBOL_GPL(security_mmap_file); |
20510f2f | 1301 | |
e5467859 AV |
1302 | int security_mmap_addr(unsigned long addr) |
1303 | { | |
f25fce3e | 1304 | return call_int_hook(mmap_addr, 0, addr); |
e5467859 AV |
1305 | } |
1306 | ||
20510f2f JM |
1307 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, |
1308 | unsigned long prot) | |
1309 | { | |
f25fce3e | 1310 | return call_int_hook(file_mprotect, 0, vma, reqprot, prot); |
20510f2f JM |
1311 | } |
1312 | ||
1313 | int security_file_lock(struct file *file, unsigned int cmd) | |
1314 | { | |
f25fce3e | 1315 | return call_int_hook(file_lock, 0, file, cmd); |
20510f2f JM |
1316 | } |
1317 | ||
1318 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) | |
1319 | { | |
f25fce3e | 1320 | return call_int_hook(file_fcntl, 0, file, cmd, arg); |
20510f2f JM |
1321 | } |
1322 | ||
e0b93edd | 1323 | void security_file_set_fowner(struct file *file) |
20510f2f | 1324 | { |
f25fce3e | 1325 | call_void_hook(file_set_fowner, file); |
20510f2f JM |
1326 | } |
1327 | ||
1328 | int security_file_send_sigiotask(struct task_struct *tsk, | |
1329 | struct fown_struct *fown, int sig) | |
1330 | { | |
f25fce3e | 1331 | return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig); |
20510f2f JM |
1332 | } |
1333 | ||
1334 | int security_file_receive(struct file *file) | |
1335 | { | |
f25fce3e | 1336 | return call_int_hook(file_receive, 0, file); |
20510f2f JM |
1337 | } |
1338 | ||
83d49856 | 1339 | int security_file_open(struct file *file, const struct cred *cred) |
20510f2f | 1340 | { |
c4ec54b4 EP |
1341 | int ret; |
1342 | ||
f25fce3e | 1343 | ret = call_int_hook(file_open, 0, file, cred); |
c4ec54b4 EP |
1344 | if (ret) |
1345 | return ret; | |
1346 | ||
1347 | return fsnotify_perm(file, MAY_OPEN); | |
20510f2f JM |
1348 | } |
1349 | ||
e4e55b47 TH |
1350 | int security_task_alloc(struct task_struct *task, unsigned long clone_flags) |
1351 | { | |
7f79f508 CS |
1352 | int rc = lsm_task_alloc(task); |
1353 | ||
7a90fc39 | 1354 | if (unlikely(rc)) |
7f79f508 CS |
1355 | return rc; |
1356 | rc = call_int_hook(task_alloc, 0, task, clone_flags); | |
1357 | if (unlikely(rc)) | |
1358 | security_task_free(task); | |
1359 | return rc; | |
e4e55b47 TH |
1360 | } |
1361 | ||
1a2a4d06 KC |
1362 | void security_task_free(struct task_struct *task) |
1363 | { | |
f25fce3e | 1364 | call_void_hook(task_free, task); |
7f79f508 CS |
1365 | |
1366 | kfree(task->security); | |
1367 | task->security = NULL; | |
1a2a4d06 KC |
1368 | } |
1369 | ||
ee18d64c DH |
1370 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
1371 | { | |
f1efc8c4 CS |
1372 | int rc = lsm_cred_alloc(cred, gfp); |
1373 | ||
7a90fc39 | 1374 | if (unlikely(rc)) |
f1efc8c4 CS |
1375 | return rc; |
1376 | ||
1377 | rc = call_int_hook(cred_alloc_blank, 0, cred, gfp); | |
ab9b110b | 1378 | if (unlikely(rc)) |
f1efc8c4 CS |
1379 | security_cred_free(cred); |
1380 | return rc; | |
ee18d64c DH |
1381 | } |
1382 | ||
d84f4f99 | 1383 | void security_cred_free(struct cred *cred) |
20510f2f | 1384 | { |
f25fce3e | 1385 | call_void_hook(cred_free, cred); |
f1efc8c4 CS |
1386 | |
1387 | kfree(cred->security); | |
1388 | cred->security = NULL; | |
20510f2f JM |
1389 | } |
1390 | ||
d84f4f99 | 1391 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) |
20510f2f | 1392 | { |
f1efc8c4 CS |
1393 | int rc = lsm_cred_alloc(new, gfp); |
1394 | ||
7a90fc39 | 1395 | if (unlikely(rc)) |
f1efc8c4 CS |
1396 | return rc; |
1397 | ||
1398 | rc = call_int_hook(cred_prepare, 0, new, old, gfp); | |
ab9b110b | 1399 | if (unlikely(rc)) |
f1efc8c4 CS |
1400 | security_cred_free(new); |
1401 | return rc; | |
d84f4f99 DH |
1402 | } |
1403 | ||
ee18d64c DH |
1404 | void security_transfer_creds(struct cred *new, const struct cred *old) |
1405 | { | |
f25fce3e | 1406 | call_void_hook(cred_transfer, new, old); |
ee18d64c DH |
1407 | } |
1408 | ||
3a3b7ce9 DH |
1409 | int security_kernel_act_as(struct cred *new, u32 secid) |
1410 | { | |
f25fce3e | 1411 | return call_int_hook(kernel_act_as, 0, new, secid); |
3a3b7ce9 DH |
1412 | } |
1413 | ||
1414 | int security_kernel_create_files_as(struct cred *new, struct inode *inode) | |
1415 | { | |
f25fce3e | 1416 | return call_int_hook(kernel_create_files_as, 0, new, inode); |
3a3b7ce9 DH |
1417 | } |
1418 | ||
dd8dbf2e | 1419 | int security_kernel_module_request(char *kmod_name) |
9188499c | 1420 | { |
f25fce3e | 1421 | return call_int_hook(kernel_module_request, 0, kmod_name); |
9188499c EP |
1422 | } |
1423 | ||
39eeb4fb MZ |
1424 | int security_kernel_read_file(struct file *file, enum kernel_read_file_id id) |
1425 | { | |
1426 | int ret; | |
1427 | ||
1428 | ret = call_int_hook(kernel_read_file, 0, file, id); | |
1429 | if (ret) | |
1430 | return ret; | |
1431 | return ima_read_file(file, id); | |
1432 | } | |
1433 | EXPORT_SYMBOL_GPL(security_kernel_read_file); | |
1434 | ||
bc8ca5b9 MZ |
1435 | int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, |
1436 | enum kernel_read_file_id id) | |
b44a7dfc | 1437 | { |
cf222217 MZ |
1438 | int ret; |
1439 | ||
1440 | ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id); | |
1441 | if (ret) | |
1442 | return ret; | |
1443 | return ima_post_read_file(file, buf, size, id); | |
b44a7dfc MZ |
1444 | } |
1445 | EXPORT_SYMBOL_GPL(security_kernel_post_read_file); | |
1446 | ||
d84f4f99 DH |
1447 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1448 | int flags) | |
20510f2f | 1449 | { |
f25fce3e | 1450 | return call_int_hook(task_fix_setuid, 0, new, old, flags); |
20510f2f JM |
1451 | } |
1452 | ||
20510f2f JM |
1453 | int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1454 | { | |
f25fce3e | 1455 | return call_int_hook(task_setpgid, 0, p, pgid); |
20510f2f JM |
1456 | } |
1457 | ||
1458 | int security_task_getpgid(struct task_struct *p) | |
1459 | { | |
f25fce3e | 1460 | return call_int_hook(task_getpgid, 0, p); |
20510f2f JM |
1461 | } |
1462 | ||
1463 | int security_task_getsid(struct task_struct *p) | |
1464 | { | |
f25fce3e | 1465 | return call_int_hook(task_getsid, 0, p); |
20510f2f JM |
1466 | } |
1467 | ||
1468 | void security_task_getsecid(struct task_struct *p, u32 *secid) | |
1469 | { | |
b1d9e6b0 | 1470 | *secid = 0; |
f25fce3e | 1471 | call_void_hook(task_getsecid, p, secid); |
20510f2f JM |
1472 | } |
1473 | EXPORT_SYMBOL(security_task_getsecid); | |
1474 | ||
20510f2f JM |
1475 | int security_task_setnice(struct task_struct *p, int nice) |
1476 | { | |
f25fce3e | 1477 | return call_int_hook(task_setnice, 0, p, nice); |
20510f2f JM |
1478 | } |
1479 | ||
1480 | int security_task_setioprio(struct task_struct *p, int ioprio) | |
1481 | { | |
f25fce3e | 1482 | return call_int_hook(task_setioprio, 0, p, ioprio); |
20510f2f JM |
1483 | } |
1484 | ||
1485 | int security_task_getioprio(struct task_struct *p) | |
1486 | { | |
f25fce3e | 1487 | return call_int_hook(task_getioprio, 0, p); |
20510f2f JM |
1488 | } |
1489 | ||
791ec491 SS |
1490 | int security_task_prlimit(const struct cred *cred, const struct cred *tcred, |
1491 | unsigned int flags) | |
1492 | { | |
1493 | return call_int_hook(task_prlimit, 0, cred, tcred, flags); | |
1494 | } | |
1495 | ||
8fd00b4d JS |
1496 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
1497 | struct rlimit *new_rlim) | |
20510f2f | 1498 | { |
f25fce3e | 1499 | return call_int_hook(task_setrlimit, 0, p, resource, new_rlim); |
20510f2f JM |
1500 | } |
1501 | ||
b0ae1981 | 1502 | int security_task_setscheduler(struct task_struct *p) |
20510f2f | 1503 | { |
f25fce3e | 1504 | return call_int_hook(task_setscheduler, 0, p); |
20510f2f JM |
1505 | } |
1506 | ||
1507 | int security_task_getscheduler(struct task_struct *p) | |
1508 | { | |
f25fce3e | 1509 | return call_int_hook(task_getscheduler, 0, p); |
20510f2f JM |
1510 | } |
1511 | ||
1512 | int security_task_movememory(struct task_struct *p) | |
1513 | { | |
f25fce3e | 1514 | return call_int_hook(task_movememory, 0, p); |
20510f2f JM |
1515 | } |
1516 | ||
1517 | int security_task_kill(struct task_struct *p, struct siginfo *info, | |
1518 | int sig, u32 secid) | |
1519 | { | |
f25fce3e | 1520 | return call_int_hook(task_kill, 0, p, info, sig, secid); |
20510f2f JM |
1521 | } |
1522 | ||
20510f2f | 1523 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 1524 | unsigned long arg4, unsigned long arg5) |
20510f2f | 1525 | { |
b1d9e6b0 CS |
1526 | int thisrc; |
1527 | int rc = -ENOSYS; | |
1528 | struct security_hook_list *hp; | |
1529 | ||
1530 | list_for_each_entry(hp, &security_hook_heads.task_prctl, list) { | |
1531 | thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5); | |
1532 | if (thisrc != -ENOSYS) { | |
1533 | rc = thisrc; | |
1534 | if (thisrc != 0) | |
1535 | break; | |
1536 | } | |
1537 | } | |
1538 | return rc; | |
20510f2f JM |
1539 | } |
1540 | ||
1541 | void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
1542 | { | |
f25fce3e | 1543 | call_void_hook(task_to_inode, p, inode); |
20510f2f JM |
1544 | } |
1545 | ||
1546 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) | |
1547 | { | |
f25fce3e | 1548 | return call_int_hook(ipc_permission, 0, ipcp, flag); |
20510f2f JM |
1549 | } |
1550 | ||
8a076191 AD |
1551 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
1552 | { | |
b1d9e6b0 | 1553 | *secid = 0; |
f25fce3e | 1554 | call_void_hook(ipc_getsecid, ipcp, secid); |
8a076191 AD |
1555 | } |
1556 | ||
20510f2f JM |
1557 | int security_msg_msg_alloc(struct msg_msg *msg) |
1558 | { | |
7a90fc39 CS |
1559 | int rc = lsm_msg_msg_alloc(msg); |
1560 | ||
1561 | if (unlikely(rc)) | |
1562 | return rc; | |
1563 | rc = call_int_hook(msg_msg_alloc_security, 0, msg); | |
1564 | if (unlikely(rc)) | |
1565 | security_msg_msg_free(msg); | |
1566 | return rc; | |
20510f2f JM |
1567 | } |
1568 | ||
1569 | void security_msg_msg_free(struct msg_msg *msg) | |
1570 | { | |
f25fce3e | 1571 | call_void_hook(msg_msg_free_security, msg); |
7a90fc39 CS |
1572 | kfree(msg->security); |
1573 | msg->security = NULL; | |
20510f2f JM |
1574 | } |
1575 | ||
1576 | int security_msg_queue_alloc(struct msg_queue *msq) | |
1577 | { | |
7a90fc39 CS |
1578 | int rc = lsm_ipc_alloc(&msq->q_perm); |
1579 | ||
1580 | if (unlikely(rc)) | |
1581 | return rc; | |
1582 | rc = call_int_hook(msg_queue_alloc_security, 0, msq); | |
1583 | if (unlikely(rc)) | |
1584 | security_msg_queue_free(msq); | |
1585 | return rc; | |
20510f2f JM |
1586 | } |
1587 | ||
1588 | void security_msg_queue_free(struct msg_queue *msq) | |
1589 | { | |
7a90fc39 CS |
1590 | struct kern_ipc_perm *kip = &msq->q_perm; |
1591 | ||
f25fce3e | 1592 | call_void_hook(msg_queue_free_security, msq); |
7a90fc39 CS |
1593 | kfree(kip->security); |
1594 | kip->security = NULL; | |
20510f2f JM |
1595 | } |
1596 | ||
1597 | int security_msg_queue_associate(struct msg_queue *msq, int msqflg) | |
1598 | { | |
f25fce3e | 1599 | return call_int_hook(msg_queue_associate, 0, msq, msqflg); |
20510f2f JM |
1600 | } |
1601 | ||
1602 | int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) | |
1603 | { | |
f25fce3e | 1604 | return call_int_hook(msg_queue_msgctl, 0, msq, cmd); |
20510f2f JM |
1605 | } |
1606 | ||
1607 | int security_msg_queue_msgsnd(struct msg_queue *msq, | |
1608 | struct msg_msg *msg, int msqflg) | |
1609 | { | |
f25fce3e | 1610 | return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg); |
20510f2f JM |
1611 | } |
1612 | ||
1613 | int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, | |
1614 | struct task_struct *target, long type, int mode) | |
1615 | { | |
f25fce3e | 1616 | return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode); |
20510f2f JM |
1617 | } |
1618 | ||
1619 | int security_shm_alloc(struct shmid_kernel *shp) | |
1620 | { | |
7a90fc39 CS |
1621 | int rc = lsm_ipc_alloc(&shp->shm_perm); |
1622 | ||
1623 | if (unlikely(rc)) | |
1624 | return rc; | |
1625 | rc = call_int_hook(shm_alloc_security, 0, shp); | |
1626 | if (unlikely(rc)) | |
1627 | security_shm_free(shp); | |
1628 | return rc; | |
20510f2f JM |
1629 | } |
1630 | ||
1631 | void security_shm_free(struct shmid_kernel *shp) | |
1632 | { | |
7a90fc39 CS |
1633 | struct kern_ipc_perm *kip = &shp->shm_perm; |
1634 | ||
f25fce3e | 1635 | call_void_hook(shm_free_security, shp); |
7a90fc39 CS |
1636 | kfree(kip->security); |
1637 | kip->security = NULL; | |
20510f2f JM |
1638 | } |
1639 | ||
1640 | int security_shm_associate(struct shmid_kernel *shp, int shmflg) | |
1641 | { | |
f25fce3e | 1642 | return call_int_hook(shm_associate, 0, shp, shmflg); |
20510f2f JM |
1643 | } |
1644 | ||
1645 | int security_shm_shmctl(struct shmid_kernel *shp, int cmd) | |
1646 | { | |
f25fce3e | 1647 | return call_int_hook(shm_shmctl, 0, shp, cmd); |
20510f2f JM |
1648 | } |
1649 | ||
1650 | int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) | |
1651 | { | |
f25fce3e | 1652 | return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg); |
20510f2f JM |
1653 | } |
1654 | ||
1655 | int security_sem_alloc(struct sem_array *sma) | |
1656 | { | |
7a90fc39 CS |
1657 | int rc = lsm_ipc_alloc(&sma->sem_perm); |
1658 | ||
1659 | if (unlikely(rc)) | |
1660 | return rc; | |
1661 | rc = call_int_hook(sem_alloc_security, 0, sma); | |
1662 | if (unlikely(rc)) | |
1663 | security_sem_free(sma); | |
1664 | return rc; | |
20510f2f JM |
1665 | } |
1666 | ||
1667 | void security_sem_free(struct sem_array *sma) | |
1668 | { | |
7a90fc39 CS |
1669 | struct kern_ipc_perm *kip = &sma->sem_perm; |
1670 | ||
f25fce3e | 1671 | call_void_hook(sem_free_security, sma); |
7a90fc39 CS |
1672 | kfree(kip->security); |
1673 | kip->security = NULL; | |
20510f2f JM |
1674 | } |
1675 | ||
1676 | int security_sem_associate(struct sem_array *sma, int semflg) | |
1677 | { | |
f25fce3e | 1678 | return call_int_hook(sem_associate, 0, sma, semflg); |
20510f2f JM |
1679 | } |
1680 | ||
1681 | int security_sem_semctl(struct sem_array *sma, int cmd) | |
1682 | { | |
f25fce3e | 1683 | return call_int_hook(sem_semctl, 0, sma, cmd); |
20510f2f JM |
1684 | } |
1685 | ||
1686 | int security_sem_semop(struct sem_array *sma, struct sembuf *sops, | |
1687 | unsigned nsops, int alter) | |
1688 | { | |
f25fce3e | 1689 | return call_int_hook(sem_semop, 0, sma, sops, nsops, alter); |
20510f2f JM |
1690 | } |
1691 | ||
1692 | void security_d_instantiate(struct dentry *dentry, struct inode *inode) | |
1693 | { | |
1694 | if (unlikely(inode && IS_PRIVATE(inode))) | |
1695 | return; | |
f25fce3e | 1696 | call_void_hook(d_instantiate, dentry, inode); |
20510f2f JM |
1697 | } |
1698 | EXPORT_SYMBOL(security_d_instantiate); | |
1699 | ||
dcd148a1 CS |
1700 | int security_getprocattr(struct task_struct *p, const char *lsm, char *name, |
1701 | char **value) | |
20510f2f | 1702 | { |
dcd148a1 CS |
1703 | struct security_hook_list *hp; |
1704 | ||
1705 | list_for_each_entry(hp, &security_hook_heads.getprocattr, list) { | |
1706 | if (lsm != NULL && strcmp(lsm, hp->lsm)) | |
1707 | continue; | |
1708 | return hp->hook.getprocattr(p, name, value); | |
1709 | } | |
1710 | return -EINVAL; | |
20510f2f JM |
1711 | } |
1712 | ||
dcd148a1 CS |
1713 | int security_setprocattr(const char *lsm, const char *name, void *value, |
1714 | size_t size) | |
20510f2f | 1715 | { |
dcd148a1 CS |
1716 | struct security_hook_list *hp; |
1717 | ||
1718 | list_for_each_entry(hp, &security_hook_heads.setprocattr, list) { | |
1719 | if (lsm != NULL && strcmp(lsm, hp->lsm)) | |
1720 | continue; | |
1721 | return hp->hook.setprocattr(name, value, size); | |
1722 | } | |
1723 | return -EINVAL; | |
20510f2f JM |
1724 | } |
1725 | ||
1726 | int security_netlink_send(struct sock *sk, struct sk_buff *skb) | |
1727 | { | |
f25fce3e | 1728 | return call_int_hook(netlink_send, 0, sk, skb); |
20510f2f | 1729 | } |
20510f2f | 1730 | |
746df9b5 DQ |
1731 | int security_ismaclabel(const char *name) |
1732 | { | |
f25fce3e | 1733 | return call_int_hook(ismaclabel, 0, name); |
746df9b5 DQ |
1734 | } |
1735 | EXPORT_SYMBOL(security_ismaclabel); | |
1736 | ||
20510f2f JM |
1737 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
1738 | { | |
b1d9e6b0 CS |
1739 | return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata, |
1740 | seclen); | |
20510f2f JM |
1741 | } |
1742 | EXPORT_SYMBOL(security_secid_to_secctx); | |
1743 | ||
7bf570dc | 1744 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) |
63cb3449 | 1745 | { |
b1d9e6b0 | 1746 | *secid = 0; |
f25fce3e | 1747 | return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid); |
63cb3449 DH |
1748 | } |
1749 | EXPORT_SYMBOL(security_secctx_to_secid); | |
1750 | ||
20510f2f JM |
1751 | void security_release_secctx(char *secdata, u32 seclen) |
1752 | { | |
f25fce3e | 1753 | call_void_hook(release_secctx, secdata, seclen); |
20510f2f JM |
1754 | } |
1755 | EXPORT_SYMBOL(security_release_secctx); | |
1756 | ||
6f3be9f5 AG |
1757 | void security_inode_invalidate_secctx(struct inode *inode) |
1758 | { | |
1759 | call_void_hook(inode_invalidate_secctx, inode); | |
1760 | } | |
1761 | EXPORT_SYMBOL(security_inode_invalidate_secctx); | |
1762 | ||
1ee65e37 DQ |
1763 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) |
1764 | { | |
f25fce3e | 1765 | return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen); |
1ee65e37 DQ |
1766 | } |
1767 | EXPORT_SYMBOL(security_inode_notifysecctx); | |
1768 | ||
1769 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
1770 | { | |
f25fce3e | 1771 | return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen); |
1ee65e37 DQ |
1772 | } |
1773 | EXPORT_SYMBOL(security_inode_setsecctx); | |
1774 | ||
1775 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
1776 | { | |
b1d9e6b0 | 1777 | return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen); |
1ee65e37 DQ |
1778 | } |
1779 | EXPORT_SYMBOL(security_inode_getsecctx); | |
1780 | ||
20510f2f JM |
1781 | #ifdef CONFIG_SECURITY_NETWORK |
1782 | ||
3610cda5 | 1783 | int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) |
20510f2f | 1784 | { |
f25fce3e | 1785 | return call_int_hook(unix_stream_connect, 0, sock, other, newsk); |
20510f2f JM |
1786 | } |
1787 | EXPORT_SYMBOL(security_unix_stream_connect); | |
1788 | ||
1789 | int security_unix_may_send(struct socket *sock, struct socket *other) | |
1790 | { | |
f25fce3e | 1791 | return call_int_hook(unix_may_send, 0, sock, other); |
20510f2f JM |
1792 | } |
1793 | EXPORT_SYMBOL(security_unix_may_send); | |
1794 | ||
1795 | int security_socket_create(int family, int type, int protocol, int kern) | |
1796 | { | |
f25fce3e | 1797 | return call_int_hook(socket_create, 0, family, type, protocol, kern); |
20510f2f JM |
1798 | } |
1799 | ||
1800 | int security_socket_post_create(struct socket *sock, int family, | |
1801 | int type, int protocol, int kern) | |
1802 | { | |
f25fce3e | 1803 | return call_int_hook(socket_post_create, 0, sock, family, type, |
20510f2f JM |
1804 | protocol, kern); |
1805 | } | |
1806 | ||
1807 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) | |
1808 | { | |
f25fce3e | 1809 | return call_int_hook(socket_bind, 0, sock, address, addrlen); |
20510f2f JM |
1810 | } |
1811 | ||
1812 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) | |
1813 | { | |
f25fce3e | 1814 | return call_int_hook(socket_connect, 0, sock, address, addrlen); |
20510f2f JM |
1815 | } |
1816 | ||
1817 | int security_socket_listen(struct socket *sock, int backlog) | |
1818 | { | |
f25fce3e | 1819 | return call_int_hook(socket_listen, 0, sock, backlog); |
20510f2f JM |
1820 | } |
1821 | ||
1822 | int security_socket_accept(struct socket *sock, struct socket *newsock) | |
1823 | { | |
f25fce3e | 1824 | return call_int_hook(socket_accept, 0, sock, newsock); |
20510f2f JM |
1825 | } |
1826 | ||
20510f2f JM |
1827 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) |
1828 | { | |
f25fce3e | 1829 | return call_int_hook(socket_sendmsg, 0, sock, msg, size); |
20510f2f JM |
1830 | } |
1831 | ||
1832 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
1833 | int size, int flags) | |
1834 | { | |
f25fce3e | 1835 | return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags); |
20510f2f JM |
1836 | } |
1837 | ||
1838 | int security_socket_getsockname(struct socket *sock) | |
1839 | { | |
f25fce3e | 1840 | return call_int_hook(socket_getsockname, 0, sock); |
20510f2f JM |
1841 | } |
1842 | ||
1843 | int security_socket_getpeername(struct socket *sock) | |
1844 | { | |
f25fce3e | 1845 | return call_int_hook(socket_getpeername, 0, sock); |
20510f2f JM |
1846 | } |
1847 | ||
1848 | int security_socket_getsockopt(struct socket *sock, int level, int optname) | |
1849 | { | |
f25fce3e | 1850 | return call_int_hook(socket_getsockopt, 0, sock, level, optname); |
20510f2f JM |
1851 | } |
1852 | ||
1853 | int security_socket_setsockopt(struct socket *sock, int level, int optname) | |
1854 | { | |
f25fce3e | 1855 | return call_int_hook(socket_setsockopt, 0, sock, level, optname); |
20510f2f JM |
1856 | } |
1857 | ||
1858 | int security_socket_shutdown(struct socket *sock, int how) | |
1859 | { | |
f25fce3e | 1860 | return call_int_hook(socket_shutdown, 0, sock, how); |
20510f2f JM |
1861 | } |
1862 | ||
1863 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) | |
1864 | { | |
f25fce3e | 1865 | return call_int_hook(socket_sock_rcv_skb, 0, sk, skb); |
20510f2f JM |
1866 | } |
1867 | EXPORT_SYMBOL(security_sock_rcv_skb); | |
1868 | ||
1869 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
1870 | int __user *optlen, unsigned len) | |
1871 | { | |
b1d9e6b0 CS |
1872 | return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock, |
1873 | optval, optlen, len); | |
20510f2f JM |
1874 | } |
1875 | ||
1876 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) | |
1877 | { | |
e308fd3b JB |
1878 | return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock, |
1879 | skb, secid); | |
20510f2f JM |
1880 | } |
1881 | EXPORT_SYMBOL(security_socket_getpeersec_dgram); | |
1882 | ||
1883 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority) | |
1884 | { | |
7a90fc39 CS |
1885 | int rc = lsm_sock_alloc(sk, priority); |
1886 | ||
1887 | if (unlikely(rc)) | |
1888 | return rc; | |
1889 | rc = call_int_hook(sk_alloc_security, 0, sk, family, priority); | |
1890 | if (unlikely(rc)) | |
1891 | security_sk_free(sk); | |
1892 | return rc; | |
20510f2f JM |
1893 | } |
1894 | ||
1895 | void security_sk_free(struct sock *sk) | |
1896 | { | |
f25fce3e | 1897 | call_void_hook(sk_free_security, sk); |
7a90fc39 CS |
1898 | kfree(sk->sk_security); |
1899 | sk->sk_security = NULL; | |
20510f2f JM |
1900 | } |
1901 | ||
1902 | void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1903 | { | |
f25fce3e | 1904 | call_void_hook(sk_clone_security, sk, newsk); |
20510f2f | 1905 | } |
6230c9b4 | 1906 | EXPORT_SYMBOL(security_sk_clone); |
20510f2f JM |
1907 | |
1908 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl) | |
1909 | { | |
f25fce3e | 1910 | call_void_hook(sk_getsecid, sk, &fl->flowi_secid); |
20510f2f JM |
1911 | } |
1912 | EXPORT_SYMBOL(security_sk_classify_flow); | |
1913 | ||
1914 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
1915 | { | |
f25fce3e | 1916 | call_void_hook(req_classify_flow, req, fl); |
20510f2f JM |
1917 | } |
1918 | EXPORT_SYMBOL(security_req_classify_flow); | |
1919 | ||
1920 | void security_sock_graft(struct sock *sk, struct socket *parent) | |
1921 | { | |
f25fce3e | 1922 | call_void_hook(sock_graft, sk, parent); |
20510f2f JM |
1923 | } |
1924 | EXPORT_SYMBOL(security_sock_graft); | |
1925 | ||
1926 | int security_inet_conn_request(struct sock *sk, | |
1927 | struct sk_buff *skb, struct request_sock *req) | |
1928 | { | |
f25fce3e | 1929 | return call_int_hook(inet_conn_request, 0, sk, skb, req); |
20510f2f JM |
1930 | } |
1931 | EXPORT_SYMBOL(security_inet_conn_request); | |
1932 | ||
1933 | void security_inet_csk_clone(struct sock *newsk, | |
1934 | const struct request_sock *req) | |
1935 | { | |
f25fce3e | 1936 | call_void_hook(inet_csk_clone, newsk, req); |
20510f2f JM |
1937 | } |
1938 | ||
1939 | void security_inet_conn_established(struct sock *sk, | |
1940 | struct sk_buff *skb) | |
1941 | { | |
f25fce3e | 1942 | call_void_hook(inet_conn_established, sk, skb); |
20510f2f JM |
1943 | } |
1944 | ||
2606fd1f EP |
1945 | int security_secmark_relabel_packet(u32 secid) |
1946 | { | |
f25fce3e | 1947 | return call_int_hook(secmark_relabel_packet, 0, secid); |
2606fd1f EP |
1948 | } |
1949 | EXPORT_SYMBOL(security_secmark_relabel_packet); | |
1950 | ||
1951 | void security_secmark_refcount_inc(void) | |
1952 | { | |
f25fce3e | 1953 | call_void_hook(secmark_refcount_inc); |
2606fd1f EP |
1954 | } |
1955 | EXPORT_SYMBOL(security_secmark_refcount_inc); | |
1956 | ||
1957 | void security_secmark_refcount_dec(void) | |
1958 | { | |
f25fce3e | 1959 | call_void_hook(secmark_refcount_dec); |
2606fd1f EP |
1960 | } |
1961 | EXPORT_SYMBOL(security_secmark_refcount_dec); | |
1962 | ||
5dbbaf2d PM |
1963 | int security_tun_dev_alloc_security(void **security) |
1964 | { | |
f25fce3e | 1965 | return call_int_hook(tun_dev_alloc_security, 0, security); |
5dbbaf2d PM |
1966 | } |
1967 | EXPORT_SYMBOL(security_tun_dev_alloc_security); | |
1968 | ||
1969 | void security_tun_dev_free_security(void *security) | |
1970 | { | |
f25fce3e | 1971 | call_void_hook(tun_dev_free_security, security); |
5dbbaf2d PM |
1972 | } |
1973 | EXPORT_SYMBOL(security_tun_dev_free_security); | |
1974 | ||
2b980dbd PM |
1975 | int security_tun_dev_create(void) |
1976 | { | |
f25fce3e | 1977 | return call_int_hook(tun_dev_create, 0); |
2b980dbd PM |
1978 | } |
1979 | EXPORT_SYMBOL(security_tun_dev_create); | |
1980 | ||
5dbbaf2d | 1981 | int security_tun_dev_attach_queue(void *security) |
2b980dbd | 1982 | { |
f25fce3e | 1983 | return call_int_hook(tun_dev_attach_queue, 0, security); |
2b980dbd | 1984 | } |
5dbbaf2d | 1985 | EXPORT_SYMBOL(security_tun_dev_attach_queue); |
2b980dbd | 1986 | |
5dbbaf2d | 1987 | int security_tun_dev_attach(struct sock *sk, void *security) |
2b980dbd | 1988 | { |
f25fce3e | 1989 | return call_int_hook(tun_dev_attach, 0, sk, security); |
2b980dbd PM |
1990 | } |
1991 | EXPORT_SYMBOL(security_tun_dev_attach); | |
1992 | ||
5dbbaf2d PM |
1993 | int security_tun_dev_open(void *security) |
1994 | { | |
f25fce3e | 1995 | return call_int_hook(tun_dev_open, 0, security); |
5dbbaf2d PM |
1996 | } |
1997 | EXPORT_SYMBOL(security_tun_dev_open); | |
1998 | ||
20510f2f JM |
1999 | #endif /* CONFIG_SECURITY_NETWORK */ |
2000 | ||
d291f1a6 DJ |
2001 | #ifdef CONFIG_SECURITY_INFINIBAND |
2002 | ||
2003 | int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) | |
2004 | { | |
2005 | return call_int_hook(ib_pkey_access, 0, sec, subnet_prefix, pkey); | |
2006 | } | |
2007 | EXPORT_SYMBOL(security_ib_pkey_access); | |
2008 | ||
47a2b338 DJ |
2009 | int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) |
2010 | { | |
2011 | return call_int_hook(ib_endport_manage_subnet, 0, sec, dev_name, port_num); | |
2012 | } | |
2013 | EXPORT_SYMBOL(security_ib_endport_manage_subnet); | |
2014 | ||
d291f1a6 DJ |
2015 | int security_ib_alloc_security(void **sec) |
2016 | { | |
2017 | return call_int_hook(ib_alloc_security, 0, sec); | |
2018 | } | |
2019 | EXPORT_SYMBOL(security_ib_alloc_security); | |
2020 | ||
2021 | void security_ib_free_security(void *sec) | |
2022 | { | |
2023 | call_void_hook(ib_free_security, sec); | |
2024 | } | |
2025 | EXPORT_SYMBOL(security_ib_free_security); | |
2026 | #endif /* CONFIG_SECURITY_INFINIBAND */ | |
2027 | ||
20510f2f JM |
2028 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
2029 | ||
52a4c640 NA |
2030 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, |
2031 | struct xfrm_user_sec_ctx *sec_ctx, | |
2032 | gfp_t gfp) | |
20510f2f | 2033 | { |
f25fce3e | 2034 | return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp); |
20510f2f JM |
2035 | } |
2036 | EXPORT_SYMBOL(security_xfrm_policy_alloc); | |
2037 | ||
03e1ad7b PM |
2038 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, |
2039 | struct xfrm_sec_ctx **new_ctxp) | |
20510f2f | 2040 | { |
f25fce3e | 2041 | return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp); |
20510f2f JM |
2042 | } |
2043 | ||
03e1ad7b | 2044 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
20510f2f | 2045 | { |
f25fce3e | 2046 | call_void_hook(xfrm_policy_free_security, ctx); |
20510f2f JM |
2047 | } |
2048 | EXPORT_SYMBOL(security_xfrm_policy_free); | |
2049 | ||
03e1ad7b | 2050 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
20510f2f | 2051 | { |
f25fce3e | 2052 | return call_int_hook(xfrm_policy_delete_security, 0, ctx); |
20510f2f JM |
2053 | } |
2054 | ||
2e5aa866 PM |
2055 | int security_xfrm_state_alloc(struct xfrm_state *x, |
2056 | struct xfrm_user_sec_ctx *sec_ctx) | |
20510f2f | 2057 | { |
f25fce3e | 2058 | return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx); |
20510f2f JM |
2059 | } |
2060 | EXPORT_SYMBOL(security_xfrm_state_alloc); | |
2061 | ||
2062 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2063 | struct xfrm_sec_ctx *polsec, u32 secid) | |
2064 | { | |
f25fce3e | 2065 | return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid); |
20510f2f JM |
2066 | } |
2067 | ||
2068 | int security_xfrm_state_delete(struct xfrm_state *x) | |
2069 | { | |
f25fce3e | 2070 | return call_int_hook(xfrm_state_delete_security, 0, x); |
20510f2f JM |
2071 | } |
2072 | EXPORT_SYMBOL(security_xfrm_state_delete); | |
2073 | ||
2074 | void security_xfrm_state_free(struct xfrm_state *x) | |
2075 | { | |
f25fce3e | 2076 | call_void_hook(xfrm_state_free_security, x); |
20510f2f JM |
2077 | } |
2078 | ||
03e1ad7b | 2079 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
20510f2f | 2080 | { |
f25fce3e | 2081 | return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir); |
20510f2f JM |
2082 | } |
2083 | ||
2084 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
e33f7704 DM |
2085 | struct xfrm_policy *xp, |
2086 | const struct flowi *fl) | |
20510f2f | 2087 | { |
b1d9e6b0 CS |
2088 | struct security_hook_list *hp; |
2089 | int rc = 1; | |
2090 | ||
2091 | /* | |
2092 | * Since this function is expected to return 0 or 1, the judgment | |
2093 | * becomes difficult if multiple LSMs supply this call. Fortunately, | |
2094 | * we can use the first LSM's judgment because currently only SELinux | |
2095 | * supplies this call. | |
2096 | * | |
2097 | * For speed optimization, we explicitly break the loop rather than | |
2098 | * using the macro | |
2099 | */ | |
2100 | list_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match, | |
2101 | list) { | |
2102 | rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl); | |
2103 | break; | |
2104 | } | |
2105 | return rc; | |
20510f2f JM |
2106 | } |
2107 | ||
2108 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) | |
2109 | { | |
f25fce3e | 2110 | return call_int_hook(xfrm_decode_session, 0, skb, secid, 1); |
20510f2f JM |
2111 | } |
2112 | ||
2113 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) | |
2114 | { | |
f25fce3e CS |
2115 | int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid, |
2116 | 0); | |
20510f2f JM |
2117 | |
2118 | BUG_ON(rc); | |
2119 | } | |
2120 | EXPORT_SYMBOL(security_skb_classify_flow); | |
2121 | ||
2122 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ | |
2123 | ||
2124 | #ifdef CONFIG_KEYS | |
2125 | ||
d84f4f99 DH |
2126 | int security_key_alloc(struct key *key, const struct cred *cred, |
2127 | unsigned long flags) | |
20510f2f | 2128 | { |
7a90fc39 CS |
2129 | int rc = lsm_key_alloc(key); |
2130 | ||
2131 | if (unlikely(rc)) | |
2132 | return rc; | |
2133 | rc = call_int_hook(key_alloc, 0, key, cred, flags); | |
2134 | if (unlikely(rc)) | |
2135 | security_key_free(key); | |
2136 | return rc; | |
20510f2f JM |
2137 | } |
2138 | ||
2139 | void security_key_free(struct key *key) | |
2140 | { | |
f25fce3e | 2141 | call_void_hook(key_free, key); |
7a90fc39 CS |
2142 | kfree(key->security); |
2143 | key->security = NULL; | |
20510f2f JM |
2144 | } |
2145 | ||
2146 | int security_key_permission(key_ref_t key_ref, | |
f5895943 | 2147 | const struct cred *cred, unsigned perm) |
20510f2f | 2148 | { |
f25fce3e | 2149 | return call_int_hook(key_permission, 0, key_ref, cred, perm); |
20510f2f JM |
2150 | } |
2151 | ||
70a5bb72 DH |
2152 | int security_key_getsecurity(struct key *key, char **_buffer) |
2153 | { | |
b1d9e6b0 | 2154 | *_buffer = NULL; |
f25fce3e | 2155 | return call_int_hook(key_getsecurity, 0, key, _buffer); |
70a5bb72 DH |
2156 | } |
2157 | ||
20510f2f | 2158 | #endif /* CONFIG_KEYS */ |
03d37d25 AD |
2159 | |
2160 | #ifdef CONFIG_AUDIT | |
2161 | ||
2162 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) | |
2163 | { | |
f25fce3e | 2164 | return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule); |
03d37d25 AD |
2165 | } |
2166 | ||
2167 | int security_audit_rule_known(struct audit_krule *krule) | |
2168 | { | |
f25fce3e | 2169 | return call_int_hook(audit_rule_known, 0, krule); |
03d37d25 AD |
2170 | } |
2171 | ||
2172 | void security_audit_rule_free(void *lsmrule) | |
2173 | { | |
f25fce3e | 2174 | call_void_hook(audit_rule_free, lsmrule); |
03d37d25 AD |
2175 | } |
2176 | ||
2177 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
2178 | struct audit_context *actx) | |
2179 | { | |
f25fce3e CS |
2180 | return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule, |
2181 | actx); | |
03d37d25 | 2182 | } |
b1d9e6b0 | 2183 | #endif /* CONFIG_AUDIT */ |
afdb09c7 CF |
2184 | |
2185 | #ifdef CONFIG_BPF_SYSCALL | |
2186 | int security_bpf(int cmd, union bpf_attr *attr, unsigned int size) | |
2187 | { | |
2188 | return call_int_hook(bpf, 0, cmd, attr, size); | |
2189 | } | |
2190 | int security_bpf_map(struct bpf_map *map, fmode_t fmode) | |
2191 | { | |
2192 | return call_int_hook(bpf_map, 0, map, fmode); | |
2193 | } | |
2194 | int security_bpf_prog(struct bpf_prog *prog) | |
2195 | { | |
2196 | return call_int_hook(bpf_prog, 0, prog); | |
2197 | } | |
2198 | int security_bpf_map_alloc(struct bpf_map *map) | |
2199 | { | |
2200 | return call_int_hook(bpf_map_alloc_security, 0, map); | |
2201 | } | |
2202 | int security_bpf_prog_alloc(struct bpf_prog_aux *aux) | |
2203 | { | |
2204 | return call_int_hook(bpf_prog_alloc_security, 0, aux); | |
2205 | } | |
2206 | void security_bpf_map_free(struct bpf_map *map) | |
2207 | { | |
2208 | call_void_hook(bpf_map_free_security, map); | |
2209 | } | |
2210 | void security_bpf_prog_free(struct bpf_prog_aux *aux) | |
2211 | { | |
2212 | call_void_hook(bpf_prog_free_security, aux); | |
2213 | } | |
2214 | #endif /* CONFIG_BPF_SYSCALL */ |