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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 | |
54f4b36b | 39 | #define MODULE_STACK "(stacking)" |
b1d9e6b0 | 40 | |
3dfc9b02 | 41 | struct security_hook_heads security_hook_heads __lsm_ro_after_init; |
8f408ab6 DJ |
42 | static ATOMIC_NOTIFIER_HEAD(lsm_notifier_chain); |
43 | ||
ab9b110b | 44 | static struct kmem_cache *lsm_file_cache; |
7a90fc39 | 45 | static struct kmem_cache *lsm_inode_cache; |
ab9b110b | 46 | |
d69dece5 | 47 | char *lsm_names; |
f1efc8c4 CS |
48 | static struct lsm_blob_sizes blob_sizes; |
49 | ||
076c54c5 | 50 | /* Boot-time LSM user choice */ |
6e65f92f | 51 | static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = |
54f4b36b CS |
52 | #ifdef CONFIG_SECURITY_STACKING |
53 | MODULE_STACK; | |
54 | #else | |
6e65f92f | 55 | CONFIG_DEFAULT_SECURITY; |
54f4b36b | 56 | #endif |
1da177e4 | 57 | |
1da177e4 LT |
58 | static void __init do_security_initcalls(void) |
59 | { | |
60 | initcall_t *call; | |
61 | call = __security_initcall_start; | |
62 | while (call < __security_initcall_end) { | |
63 | (*call) (); | |
64 | call++; | |
65 | } | |
66 | } | |
67 | ||
68 | /** | |
69 | * security_init - initializes the security framework | |
70 | * | |
71 | * This should be called early in the kernel initialization sequence. | |
72 | */ | |
73 | int __init security_init(void) | |
74 | { | |
3dfc9b02 TH |
75 | int i; |
76 | struct list_head *list = (struct list_head *) &security_hook_heads; | |
77 | ||
78 | for (i = 0; i < sizeof(security_hook_heads) / sizeof(struct list_head); | |
79 | i++) | |
80 | INIT_LIST_HEAD(&list[i]); | |
b1d9e6b0 | 81 | pr_info("Security Framework initialized\n"); |
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 | /* |
f1efc8c4 CS |
91 | * The first call to a module specific init function |
92 | * updates the blob size requirements. | |
93 | */ | |
94 | do_security_initcalls(); | |
95 | ||
ab9b110b CS |
96 | /* |
97 | * Create any kmem_caches needed for blobs | |
98 | */ | |
99 | if (blob_sizes.lbs_file) | |
100 | lsm_file_cache = kmem_cache_create("lsm_file_cache", | |
101 | blob_sizes.lbs_file, 0, | |
102 | SLAB_PANIC, NULL); | |
7a90fc39 CS |
103 | if (blob_sizes.lbs_inode) |
104 | lsm_inode_cache = kmem_cache_create("lsm_inode_cache", | |
105 | blob_sizes.lbs_inode, 0, | |
106 | SLAB_PANIC, NULL); | |
f1efc8c4 CS |
107 | /* |
108 | * The second call to a module specific init function | |
109 | * adds hooks to the hook lists and does any other early | |
110 | * initializations required. | |
b1d9e6b0 | 111 | */ |
1da177e4 LT |
112 | do_security_initcalls(); |
113 | ||
f1efc8c4 CS |
114 | #ifdef CONFIG_SECURITY_LSM_DEBUG |
115 | pr_info("LSM: cred blob size = %d\n", blob_sizes.lbs_cred); | |
ab9b110b | 116 | pr_info("LSM: file blob size = %d\n", blob_sizes.lbs_file); |
7a90fc39 CS |
117 | pr_info("LSM: inode blob size = %d\n", blob_sizes.lbs_inode); |
118 | pr_info("LSM: ipc blob size = %d\n", blob_sizes.lbs_ipc); | |
119 | #ifdef CONFIG_KEYS | |
120 | pr_info("LSM: key blob size = %d\n", blob_sizes.lbs_key); | |
121 | #endif /* CONFIG_KEYS */ | |
122 | pr_info("LSM: msg_msg blob size = %d\n", blob_sizes.lbs_msg_msg); | |
123 | pr_info("LSM: sock blob size = %d\n", blob_sizes.lbs_sock); | |
124 | pr_info("LSM: superblock blob size = %d\n", blob_sizes.lbs_superblock); | |
7f79f508 | 125 | pr_info("LSM: task blob size = %d\n", blob_sizes.lbs_task); |
7a90fc39 | 126 | #endif /* CONFIG_SECURITY_LSM_DEBUG */ |
f1efc8c4 | 127 | |
1da177e4 LT |
128 | return 0; |
129 | } | |
130 | ||
076c54c5 AD |
131 | /* Save user chosen LSM */ |
132 | static int __init choose_lsm(char *str) | |
133 | { | |
134 | strncpy(chosen_lsm, str, SECURITY_NAME_MAX); | |
135 | return 1; | |
136 | } | |
137 | __setup("security=", choose_lsm); | |
138 | ||
3bb857e4 MS |
139 | static bool match_last_lsm(const char *list, const char *lsm) |
140 | { | |
141 | const char *last; | |
142 | ||
143 | if (WARN_ON(!list || !lsm)) | |
144 | return false; | |
145 | last = strrchr(list, ','); | |
146 | if (last) | |
147 | /* Pass the comma, strcmp() will check for '\0' */ | |
148 | last++; | |
149 | else | |
150 | last = list; | |
151 | return !strcmp(last, lsm); | |
152 | } | |
153 | ||
d69dece5 CS |
154 | static int lsm_append(char *new, char **result) |
155 | { | |
156 | char *cp; | |
157 | ||
158 | if (*result == NULL) { | |
159 | *result = kstrdup(new, GFP_KERNEL); | |
160 | } else { | |
3bb857e4 MS |
161 | /* Check if it is the last registered name */ |
162 | if (match_last_lsm(*result, new)) | |
163 | return 0; | |
d69dece5 CS |
164 | cp = kasprintf(GFP_KERNEL, "%s,%s", *result, new); |
165 | if (cp == NULL) | |
166 | return -ENOMEM; | |
167 | kfree(*result); | |
168 | *result = cp; | |
169 | } | |
170 | return 0; | |
171 | } | |
172 | ||
076c54c5 AD |
173 | /** |
174 | * security_module_enable - Load given security module on boot ? | |
b1d9e6b0 | 175 | * @module: the name of the module |
54f4b36b | 176 | * @stacked: indicates that the module wants to be stacked |
076c54c5 AD |
177 | * |
178 | * Each LSM must pass this method before registering its own operations | |
179 | * to avoid security registration races. This method may also be used | |
7cea51be | 180 | * to check if your LSM is currently loaded during kernel initialization. |
076c54c5 | 181 | * |
0e056eb5 MCC |
182 | * Returns: |
183 | * | |
184 | * true if: | |
185 | * | |
186 | * - The passed LSM is the one chosen by user at boot time, | |
187 | * - or the passed LSM is configured as the default and the user did not | |
188 | * choose an alternate LSM at boot time. | |
189 | * | |
076c54c5 AD |
190 | * Otherwise, return false. |
191 | */ | |
54f4b36b | 192 | bool __init security_module_enable(const char *lsm, const bool stacked) |
076c54c5 | 193 | { |
54f4b36b CS |
194 | #ifdef CONFIG_SECURITY_STACKING |
195 | /* | |
196 | * Module defined on the command line security=XXXX | |
197 | */ | |
198 | if (strcmp(chosen_lsm, MODULE_STACK)) { | |
199 | if (!strcmp(lsm, chosen_lsm)) { | |
200 | pr_info("Command line sets the %s security module.\n", | |
201 | lsm); | |
202 | return true; | |
203 | } | |
204 | return false; | |
205 | } | |
206 | /* | |
207 | * Module configured as stacked. | |
208 | */ | |
209 | return stacked; | |
210 | #else | |
211 | if (strcmp(lsm, chosen_lsm) == 0) | |
212 | return true; | |
213 | return false; | |
214 | #endif | |
076c54c5 AD |
215 | } |
216 | ||
d69dece5 CS |
217 | /** |
218 | * security_add_hooks - Add a modules hooks to the hook lists. | |
219 | * @hooks: the hooks to add | |
220 | * @count: the number of hooks to add | |
221 | * @lsm: the name of the security module | |
222 | * | |
223 | * Each LSM has to register its hooks with the infrastructure. | |
224 | */ | |
225 | void __init security_add_hooks(struct security_hook_list *hooks, int count, | |
226 | char *lsm) | |
227 | { | |
228 | int i; | |
229 | ||
230 | for (i = 0; i < count; i++) { | |
231 | hooks[i].lsm = lsm; | |
232 | list_add_tail_rcu(&hooks[i].list, hooks[i].head); | |
233 | } | |
234 | if (lsm_append(lsm, &lsm_names) < 0) | |
235 | panic("%s - Cannot get early memory.\n", __func__); | |
236 | } | |
237 | ||
8f408ab6 DJ |
238 | int call_lsm_notifier(enum lsm_event event, void *data) |
239 | { | |
240 | return atomic_notifier_call_chain(&lsm_notifier_chain, event, data); | |
241 | } | |
242 | EXPORT_SYMBOL(call_lsm_notifier); | |
243 | ||
244 | int register_lsm_notifier(struct notifier_block *nb) | |
245 | { | |
246 | return atomic_notifier_chain_register(&lsm_notifier_chain, nb); | |
247 | } | |
248 | EXPORT_SYMBOL(register_lsm_notifier); | |
249 | ||
250 | int unregister_lsm_notifier(struct notifier_block *nb) | |
251 | { | |
252 | return atomic_notifier_chain_unregister(&lsm_notifier_chain, nb); | |
253 | } | |
254 | EXPORT_SYMBOL(unregister_lsm_notifier); | |
255 | ||
f1efc8c4 CS |
256 | /** |
257 | * lsm_cred_alloc - allocate a composite cred blob | |
258 | * @cred: the cred that needs a blob | |
259 | * @gfp: allocation type | |
260 | * | |
261 | * Allocate the cred blob for all the modules | |
262 | * | |
263 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
264 | */ | |
265 | int lsm_cred_alloc(struct cred *cred, gfp_t gfp) | |
266 | { | |
267 | if (blob_sizes.lbs_cred == 0) { | |
268 | cred->security = NULL; | |
269 | return 0; | |
270 | } | |
271 | ||
272 | cred->security = kzalloc(blob_sizes.lbs_cred, gfp); | |
273 | if (cred->security == NULL) | |
274 | return -ENOMEM; | |
275 | return 0; | |
276 | } | |
277 | ||
278 | /** | |
279 | * lsm_early_cred - during initialization allocate a composite cred blob | |
280 | * @cred: the cred that needs a blob | |
281 | * | |
282 | * Allocate the cred blob for all the modules if it's not already there | |
283 | */ | |
284 | void lsm_early_cred(struct cred *cred) | |
285 | { | |
286 | int rc; | |
287 | ||
288 | if (cred == NULL) | |
289 | panic("%s: NULL cred.\n", __func__); | |
290 | if (cred->security != NULL) | |
291 | return; | |
292 | rc = lsm_cred_alloc(cred, GFP_KERNEL); | |
293 | if (rc) | |
294 | panic("%s: Early cred alloc failed.\n", __func__); | |
295 | } | |
296 | ||
297 | static void __init lsm_set_size(int *need, int *lbs) | |
298 | { | |
299 | int offset; | |
300 | ||
301 | if (*need > 0) { | |
302 | offset = *lbs; | |
303 | *lbs += *need; | |
304 | *need = offset; | |
305 | } | |
306 | } | |
307 | ||
308 | /** | |
309 | * security_add_blobs - Report blob sizes | |
310 | * @needed: the size of blobs needed by the module | |
311 | * | |
312 | * Each LSM has to register its blobs with the infrastructure. | |
313 | * The "needed" data tells the infrastructure how much memory | |
314 | * the module requires for each of its blobs. On return the | |
315 | * structure is filled with the offset that module should use | |
316 | * from the blob pointer. | |
317 | */ | |
318 | void __init security_add_blobs(struct lsm_blob_sizes *needed) | |
319 | { | |
320 | lsm_set_size(&needed->lbs_cred, &blob_sizes.lbs_cred); | |
ab9b110b | 321 | lsm_set_size(&needed->lbs_file, &blob_sizes.lbs_file); |
7a90fc39 CS |
322 | lsm_set_size(&needed->lbs_ipc, &blob_sizes.lbs_ipc); |
323 | lsm_set_size(&needed->lbs_key, &blob_sizes.lbs_key); | |
324 | lsm_set_size(&needed->lbs_msg_msg, &blob_sizes.lbs_msg_msg); | |
325 | lsm_set_size(&needed->lbs_sock, &blob_sizes.lbs_sock); | |
326 | lsm_set_size(&needed->lbs_superblock, &blob_sizes.lbs_superblock); | |
7f79f508 | 327 | lsm_set_size(&needed->lbs_task, &blob_sizes.lbs_task); |
7a90fc39 CS |
328 | /* |
329 | * The inode blob gets an rcu_head in addition to | |
330 | * what the modules might need. | |
331 | */ | |
332 | if (needed->lbs_inode && blob_sizes.lbs_inode == 0) | |
333 | blob_sizes.lbs_inode = sizeof(struct rcu_head); | |
334 | lsm_set_size(&needed->lbs_inode, &blob_sizes.lbs_inode); | |
ab9b110b CS |
335 | } |
336 | ||
337 | /** | |
338 | * lsm_file_alloc - allocate a composite file blob | |
339 | * @file: the file that needs a blob | |
340 | * | |
341 | * Allocate the file blob for all the modules | |
342 | * | |
343 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
344 | */ | |
345 | int lsm_file_alloc(struct file *file) | |
346 | { | |
347 | if (!lsm_file_cache) { | |
348 | file->f_security = NULL; | |
349 | return 0; | |
350 | } | |
351 | ||
352 | file->f_security = kmem_cache_zalloc(lsm_file_cache, GFP_KERNEL); | |
353 | if (file->f_security == NULL) | |
354 | return -ENOMEM; | |
355 | return 0; | |
f1efc8c4 CS |
356 | } |
357 | ||
7f79f508 CS |
358 | /** |
359 | * lsm_task_alloc - allocate a composite task blob | |
360 | * @task: the task that needs a blob | |
361 | * | |
362 | * Allocate the task blob for all the modules | |
363 | * | |
364 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
365 | */ | |
366 | int lsm_task_alloc(struct task_struct *task) | |
367 | { | |
368 | if (blob_sizes.lbs_task == 0) { | |
369 | task->security = NULL; | |
370 | return 0; | |
371 | } | |
372 | ||
373 | task->security = kzalloc(blob_sizes.lbs_task, GFP_KERNEL); | |
374 | if (task->security == NULL) | |
375 | return -ENOMEM; | |
376 | return 0; | |
377 | } | |
378 | ||
7a90fc39 CS |
379 | /** |
380 | * lsm_inode_alloc - allocate a composite inode blob | |
381 | * @inode: the inode that needs a blob | |
382 | * | |
383 | * Allocate the inode blob for all the modules | |
384 | * | |
385 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
386 | */ | |
387 | int lsm_inode_alloc(struct inode *inode) | |
388 | { | |
389 | if (!lsm_inode_cache) { | |
390 | inode->i_security = NULL; | |
391 | return 0; | |
392 | } | |
393 | ||
394 | inode->i_security = kmem_cache_zalloc(lsm_inode_cache, GFP_KERNEL); | |
395 | if (inode->i_security == NULL) | |
396 | return -ENOMEM; | |
397 | return 0; | |
398 | } | |
399 | ||
400 | /** | |
401 | * lsm_early_inode - during initialization allocate a composite inode blob | |
402 | * @inode: the inode that needs a blob | |
403 | * | |
404 | * Allocate the inode blob for all the modules if it's not already there | |
405 | */ | |
406 | void lsm_early_inode(struct inode *inode) | |
407 | { | |
408 | int rc; | |
409 | ||
410 | if (inode == NULL) | |
411 | panic("%s: NULL inode.\n", __func__); | |
412 | if (inode->i_security != NULL) | |
413 | return; | |
414 | rc = lsm_inode_alloc(inode); | |
415 | if (rc) | |
416 | panic("%s: Early inode alloc failed.\n", __func__); | |
417 | } | |
418 | ||
419 | /** | |
420 | * lsm_ipc_alloc - allocate a composite ipc blob | |
421 | * @kip: the ipc that needs a blob | |
422 | * | |
423 | * Allocate the ipc blob for all the modules | |
424 | * | |
425 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
426 | */ | |
427 | int lsm_ipc_alloc(struct kern_ipc_perm *kip) | |
428 | { | |
429 | if (blob_sizes.lbs_ipc == 0) { | |
430 | kip->security = NULL; | |
431 | return 0; | |
432 | } | |
433 | ||
434 | kip->security = kzalloc(blob_sizes.lbs_ipc, GFP_KERNEL); | |
435 | if (kip->security == NULL) | |
436 | return -ENOMEM; | |
437 | return 0; | |
438 | } | |
439 | ||
440 | #ifdef CONFIG_KEYS | |
441 | /** | |
442 | * lsm_key_alloc - allocate a composite key blob | |
443 | * @key: the key that needs a blob | |
444 | * | |
445 | * Allocate the key blob for all the modules | |
446 | * | |
447 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
448 | */ | |
449 | int lsm_key_alloc(struct key *key) | |
450 | { | |
451 | if (blob_sizes.lbs_key == 0) { | |
452 | key->security = NULL; | |
453 | return 0; | |
454 | } | |
455 | ||
456 | key->security = kzalloc(blob_sizes.lbs_key, GFP_KERNEL); | |
457 | if (key->security == NULL) | |
458 | return -ENOMEM; | |
459 | return 0; | |
460 | } | |
461 | #endif /* CONFIG_KEYS */ | |
462 | ||
463 | /** | |
464 | * lsm_msg_msg_alloc - allocate a composite msg_msg blob | |
465 | * @mp: the msg_msg that needs a blob | |
466 | * | |
467 | * Allocate the ipc blob for all the modules | |
468 | * | |
469 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
470 | */ | |
471 | int lsm_msg_msg_alloc(struct msg_msg *mp) | |
472 | { | |
473 | if (blob_sizes.lbs_msg_msg == 0) { | |
474 | mp->security = NULL; | |
475 | return 0; | |
476 | } | |
477 | ||
478 | mp->security = kzalloc(blob_sizes.lbs_msg_msg, GFP_KERNEL); | |
479 | if (mp->security == NULL) | |
480 | return -ENOMEM; | |
481 | return 0; | |
482 | } | |
483 | ||
484 | /** | |
485 | * lsm_sock_alloc - allocate a composite sock blob | |
486 | * @sock: the sock that needs a blob | |
487 | * @priority: allocation mode | |
488 | * | |
489 | * Allocate the sock blob for all the modules | |
490 | * | |
491 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
492 | */ | |
493 | int lsm_sock_alloc(struct sock *sock, gfp_t priority) | |
494 | { | |
495 | if (blob_sizes.lbs_sock == 0) { | |
496 | sock->sk_security = NULL; | |
497 | return 0; | |
498 | } | |
499 | ||
500 | sock->sk_security = kzalloc(blob_sizes.lbs_sock, priority); | |
501 | if (sock->sk_security == NULL) | |
502 | return -ENOMEM; | |
503 | return 0; | |
504 | } | |
505 | ||
506 | /** | |
507 | * lsm_superblock_alloc - allocate a composite superblock blob | |
508 | * @sb: the superblock that needs a blob | |
509 | * | |
510 | * Allocate the superblock blob for all the modules | |
511 | * | |
512 | * Returns 0, or -ENOMEM if memory can't be allocated. | |
513 | */ | |
514 | int lsm_superblock_alloc(struct super_block *sb) | |
515 | { | |
516 | if (blob_sizes.lbs_superblock == 0) { | |
517 | sb->s_security = NULL; | |
518 | return 0; | |
519 | } | |
520 | ||
521 | sb->s_security = kzalloc(blob_sizes.lbs_superblock, GFP_KERNEL); | |
522 | if (sb->s_security == NULL) | |
523 | return -ENOMEM; | |
524 | return 0; | |
525 | } | |
526 | ||
f25fce3e | 527 | /* |
b1d9e6b0 | 528 | * Hook list operation macros. |
1da177e4 | 529 | * |
f25fce3e CS |
530 | * call_void_hook: |
531 | * This is a hook that does not return a value. | |
1da177e4 | 532 | * |
f25fce3e CS |
533 | * call_int_hook: |
534 | * This is a hook that returns a value. | |
1da177e4 | 535 | */ |
1da177e4 | 536 | |
b1d9e6b0 CS |
537 | #define call_void_hook(FUNC, ...) \ |
538 | do { \ | |
539 | struct security_hook_list *P; \ | |
540 | \ | |
541 | list_for_each_entry(P, &security_hook_heads.FUNC, list) \ | |
542 | P->hook.FUNC(__VA_ARGS__); \ | |
543 | } while (0) | |
544 | ||
545 | #define call_int_hook(FUNC, IRC, ...) ({ \ | |
546 | int RC = IRC; \ | |
547 | do { \ | |
548 | struct security_hook_list *P; \ | |
549 | \ | |
550 | list_for_each_entry(P, &security_hook_heads.FUNC, list) { \ | |
551 | RC = P->hook.FUNC(__VA_ARGS__); \ | |
552 | if (RC != 0) \ | |
553 | break; \ | |
554 | } \ | |
555 | } while (0); \ | |
556 | RC; \ | |
557 | }) | |
1da177e4 | 558 | |
20510f2f JM |
559 | /* Security operations */ |
560 | ||
79af7307 SS |
561 | int security_binder_set_context_mgr(struct task_struct *mgr) |
562 | { | |
f25fce3e | 563 | return call_int_hook(binder_set_context_mgr, 0, mgr); |
79af7307 SS |
564 | } |
565 | ||
566 | int security_binder_transaction(struct task_struct *from, | |
567 | struct task_struct *to) | |
568 | { | |
f25fce3e | 569 | return call_int_hook(binder_transaction, 0, from, to); |
79af7307 SS |
570 | } |
571 | ||
572 | int security_binder_transfer_binder(struct task_struct *from, | |
573 | struct task_struct *to) | |
574 | { | |
f25fce3e | 575 | return call_int_hook(binder_transfer_binder, 0, from, to); |
79af7307 SS |
576 | } |
577 | ||
578 | int security_binder_transfer_file(struct task_struct *from, | |
579 | struct task_struct *to, struct file *file) | |
580 | { | |
f25fce3e | 581 | return call_int_hook(binder_transfer_file, 0, from, to, file); |
79af7307 SS |
582 | } |
583 | ||
9e48858f | 584 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode) |
20510f2f | 585 | { |
f25fce3e | 586 | return call_int_hook(ptrace_access_check, 0, child, mode); |
5cd9c58f DH |
587 | } |
588 | ||
589 | int security_ptrace_traceme(struct task_struct *parent) | |
590 | { | |
f25fce3e | 591 | return call_int_hook(ptrace_traceme, 0, parent); |
20510f2f JM |
592 | } |
593 | ||
594 | int security_capget(struct task_struct *target, | |
595 | kernel_cap_t *effective, | |
596 | kernel_cap_t *inheritable, | |
597 | kernel_cap_t *permitted) | |
598 | { | |
f25fce3e CS |
599 | return call_int_hook(capget, 0, target, |
600 | effective, inheritable, permitted); | |
20510f2f JM |
601 | } |
602 | ||
d84f4f99 DH |
603 | int security_capset(struct cred *new, const struct cred *old, |
604 | const kernel_cap_t *effective, | |
605 | const kernel_cap_t *inheritable, | |
606 | const kernel_cap_t *permitted) | |
20510f2f | 607 | { |
f25fce3e CS |
608 | return call_int_hook(capset, 0, new, old, |
609 | effective, inheritable, permitted); | |
20510f2f JM |
610 | } |
611 | ||
b7e724d3 | 612 | int security_capable(const struct cred *cred, struct user_namespace *ns, |
3486740a | 613 | int cap) |
20510f2f | 614 | { |
f25fce3e | 615 | return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT); |
06112163 EP |
616 | } |
617 | ||
c7eba4a9 EP |
618 | int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, |
619 | int cap) | |
06112163 | 620 | { |
f25fce3e | 621 | return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT); |
20510f2f JM |
622 | } |
623 | ||
20510f2f JM |
624 | int security_quotactl(int cmds, int type, int id, struct super_block *sb) |
625 | { | |
f25fce3e | 626 | return call_int_hook(quotactl, 0, cmds, type, id, sb); |
20510f2f JM |
627 | } |
628 | ||
629 | int security_quota_on(struct dentry *dentry) | |
630 | { | |
f25fce3e | 631 | return call_int_hook(quota_on, 0, dentry); |
20510f2f JM |
632 | } |
633 | ||
12b3052c | 634 | int security_syslog(int type) |
20510f2f | 635 | { |
f25fce3e | 636 | return call_int_hook(syslog, 0, type); |
20510f2f JM |
637 | } |
638 | ||
457db29b | 639 | int security_settime64(const struct timespec64 *ts, const struct timezone *tz) |
20510f2f | 640 | { |
f25fce3e | 641 | return call_int_hook(settime, 0, ts, tz); |
20510f2f JM |
642 | } |
643 | ||
20510f2f JM |
644 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
645 | { | |
b1d9e6b0 CS |
646 | struct security_hook_list *hp; |
647 | int cap_sys_admin = 1; | |
648 | int rc; | |
649 | ||
650 | /* | |
651 | * The module will respond with a positive value if | |
652 | * it thinks the __vm_enough_memory() call should be | |
653 | * made with the cap_sys_admin set. If all of the modules | |
654 | * agree that it should be set it will. If any module | |
655 | * thinks it should not be set it won't. | |
656 | */ | |
657 | list_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) { | |
658 | rc = hp->hook.vm_enough_memory(mm, pages); | |
659 | if (rc <= 0) { | |
660 | cap_sys_admin = 0; | |
661 | break; | |
662 | } | |
663 | } | |
664 | return __vm_enough_memory(mm, pages, cap_sys_admin); | |
20510f2f JM |
665 | } |
666 | ||
a6f76f23 | 667 | int security_bprm_set_creds(struct linux_binprm *bprm) |
20510f2f | 668 | { |
f25fce3e | 669 | return call_int_hook(bprm_set_creds, 0, bprm); |
20510f2f JM |
670 | } |
671 | ||
a6f76f23 | 672 | int security_bprm_check(struct linux_binprm *bprm) |
20510f2f | 673 | { |
6c21a7fb MZ |
674 | int ret; |
675 | ||
f25fce3e | 676 | ret = call_int_hook(bprm_check_security, 0, bprm); |
6c21a7fb MZ |
677 | if (ret) |
678 | return ret; | |
679 | return ima_bprm_check(bprm); | |
20510f2f JM |
680 | } |
681 | ||
a6f76f23 | 682 | void security_bprm_committing_creds(struct linux_binprm *bprm) |
20510f2f | 683 | { |
f25fce3e | 684 | call_void_hook(bprm_committing_creds, bprm); |
20510f2f JM |
685 | } |
686 | ||
a6f76f23 | 687 | void security_bprm_committed_creds(struct linux_binprm *bprm) |
20510f2f | 688 | { |
f25fce3e | 689 | call_void_hook(bprm_committed_creds, bprm); |
20510f2f JM |
690 | } |
691 | ||
20510f2f JM |
692 | int security_sb_alloc(struct super_block *sb) |
693 | { | |
7a90fc39 CS |
694 | int rc = lsm_superblock_alloc(sb); |
695 | ||
696 | if (unlikely(rc)) | |
697 | return rc; | |
698 | rc = call_int_hook(sb_alloc_security, 0, sb); | |
699 | if (unlikely(rc)) | |
700 | security_sb_free(sb); | |
701 | return rc; | |
20510f2f JM |
702 | } |
703 | ||
704 | void security_sb_free(struct super_block *sb) | |
705 | { | |
f25fce3e | 706 | call_void_hook(sb_free_security, sb); |
7a90fc39 CS |
707 | kfree(sb->s_security); |
708 | sb->s_security = NULL; | |
20510f2f JM |
709 | } |
710 | ||
e0007529 | 711 | int security_sb_copy_data(char *orig, char *copy) |
20510f2f | 712 | { |
f25fce3e | 713 | return call_int_hook(sb_copy_data, 0, orig, copy); |
20510f2f | 714 | } |
e0007529 | 715 | EXPORT_SYMBOL(security_sb_copy_data); |
20510f2f | 716 | |
ff36fe2c EP |
717 | int security_sb_remount(struct super_block *sb, void *data) |
718 | { | |
f25fce3e | 719 | return call_int_hook(sb_remount, 0, sb, data); |
ff36fe2c EP |
720 | } |
721 | ||
12204e24 | 722 | int security_sb_kern_mount(struct super_block *sb, int flags, void *data) |
20510f2f | 723 | { |
f25fce3e | 724 | return call_int_hook(sb_kern_mount, 0, sb, flags, data); |
20510f2f JM |
725 | } |
726 | ||
2069f457 EP |
727 | int security_sb_show_options(struct seq_file *m, struct super_block *sb) |
728 | { | |
f25fce3e | 729 | return call_int_hook(sb_show_options, 0, m, sb); |
2069f457 EP |
730 | } |
731 | ||
20510f2f JM |
732 | int security_sb_statfs(struct dentry *dentry) |
733 | { | |
f25fce3e | 734 | return call_int_hook(sb_statfs, 0, dentry); |
20510f2f JM |
735 | } |
736 | ||
8a04c43b | 737 | int security_sb_mount(const char *dev_name, const struct path *path, |
808d4e3c | 738 | const char *type, unsigned long flags, void *data) |
20510f2f | 739 | { |
f25fce3e | 740 | return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data); |
20510f2f JM |
741 | } |
742 | ||
20510f2f JM |
743 | int security_sb_umount(struct vfsmount *mnt, int flags) |
744 | { | |
f25fce3e | 745 | return call_int_hook(sb_umount, 0, mnt, flags); |
20510f2f JM |
746 | } |
747 | ||
3b73b68c | 748 | int security_sb_pivotroot(const struct path *old_path, const struct path *new_path) |
20510f2f | 749 | { |
f25fce3e | 750 | return call_int_hook(sb_pivotroot, 0, old_path, new_path); |
20510f2f JM |
751 | } |
752 | ||
c9180a57 | 753 | int security_sb_set_mnt_opts(struct super_block *sb, |
649f6e77 DQ |
754 | struct security_mnt_opts *opts, |
755 | unsigned long kern_flags, | |
756 | unsigned long *set_kern_flags) | |
c9180a57 | 757 | { |
b1d9e6b0 CS |
758 | return call_int_hook(sb_set_mnt_opts, |
759 | opts->num_mnt_opts ? -EOPNOTSUPP : 0, sb, | |
760 | opts, kern_flags, set_kern_flags); | |
c9180a57 | 761 | } |
e0007529 | 762 | EXPORT_SYMBOL(security_sb_set_mnt_opts); |
c9180a57 | 763 | |
094f7b69 | 764 | int security_sb_clone_mnt_opts(const struct super_block *oldsb, |
0b4d3452 SM |
765 | struct super_block *newsb, |
766 | unsigned long kern_flags, | |
767 | unsigned long *set_kern_flags) | |
c9180a57 | 768 | { |
0b4d3452 SM |
769 | return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb, |
770 | kern_flags, set_kern_flags); | |
c9180a57 | 771 | } |
e0007529 EP |
772 | EXPORT_SYMBOL(security_sb_clone_mnt_opts); |
773 | ||
774 | int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) | |
775 | { | |
f25fce3e | 776 | return call_int_hook(sb_parse_opts_str, 0, options, opts); |
e0007529 EP |
777 | } |
778 | EXPORT_SYMBOL(security_sb_parse_opts_str); | |
c9180a57 | 779 | |
20510f2f JM |
780 | int security_inode_alloc(struct inode *inode) |
781 | { | |
7a90fc39 CS |
782 | int rc = lsm_inode_alloc(inode); |
783 | ||
784 | if (unlikely(rc)) | |
785 | return rc; | |
786 | rc = call_int_hook(inode_alloc_security, 0, inode); | |
787 | if (unlikely(rc)) | |
788 | security_inode_free(inode); | |
789 | return rc; | |
790 | } | |
791 | ||
792 | static void inode_free_by_rcu(struct rcu_head *head) | |
793 | { | |
794 | /* | |
795 | * The rcu head is at the start of the inode blob | |
796 | */ | |
797 | kmem_cache_free(lsm_inode_cache, head); | |
20510f2f JM |
798 | } |
799 | ||
800 | void security_inode_free(struct inode *inode) | |
801 | { | |
f381c272 | 802 | integrity_inode_free(inode); |
f25fce3e | 803 | call_void_hook(inode_free_security, inode); |
7a90fc39 CS |
804 | /* |
805 | * The inode may still be referenced in a path walk and | |
806 | * a call to security_inode_permission() can be made | |
807 | * after inode_free_security() is called. Ideally, the VFS | |
808 | * wouldn't do this, but fixing that is a much harder | |
809 | * job. For now, simply free the i_security via RCU, and | |
810 | * leave the current inode->i_security pointer intact. | |
811 | * The inode will be freed after the RCU grace period too. | |
812 | */ | |
813 | if (inode->i_security) | |
814 | call_rcu((struct rcu_head *)inode->i_security, | |
815 | inode_free_by_rcu); | |
20510f2f JM |
816 | } |
817 | ||
d47be3df | 818 | int security_dentry_init_security(struct dentry *dentry, int mode, |
4f3ccd76 | 819 | const struct qstr *name, void **ctx, |
d47be3df DQ |
820 | u32 *ctxlen) |
821 | { | |
b1d9e6b0 CS |
822 | return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode, |
823 | name, ctx, ctxlen); | |
d47be3df DQ |
824 | } |
825 | EXPORT_SYMBOL(security_dentry_init_security); | |
826 | ||
2602625b VG |
827 | int security_dentry_create_files_as(struct dentry *dentry, int mode, |
828 | struct qstr *name, | |
829 | const struct cred *old, struct cred *new) | |
830 | { | |
831 | return call_int_hook(dentry_create_files_as, 0, dentry, mode, | |
832 | name, old, new); | |
833 | } | |
834 | EXPORT_SYMBOL(security_dentry_create_files_as); | |
835 | ||
20510f2f | 836 | int security_inode_init_security(struct inode *inode, struct inode *dir, |
9d8f13ba MZ |
837 | const struct qstr *qstr, |
838 | const initxattrs initxattrs, void *fs_data) | |
20510f2f | 839 | { |
823eb1cc MZ |
840 | struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1]; |
841 | struct xattr *lsm_xattr, *evm_xattr, *xattr; | |
9d8f13ba MZ |
842 | int ret; |
843 | ||
20510f2f | 844 | if (unlikely(IS_PRIVATE(inode))) |
fb88c2b6 | 845 | return 0; |
9d8f13ba | 846 | |
9d8f13ba | 847 | if (!initxattrs) |
e308fd3b JB |
848 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, |
849 | dir, qstr, NULL, NULL, NULL); | |
9548906b | 850 | memset(new_xattrs, 0, sizeof(new_xattrs)); |
9d8f13ba | 851 | lsm_xattr = new_xattrs; |
b1d9e6b0 | 852 | ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr, |
9d8f13ba MZ |
853 | &lsm_xattr->name, |
854 | &lsm_xattr->value, | |
855 | &lsm_xattr->value_len); | |
856 | if (ret) | |
857 | goto out; | |
823eb1cc MZ |
858 | |
859 | evm_xattr = lsm_xattr + 1; | |
860 | ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr); | |
861 | if (ret) | |
862 | goto out; | |
9d8f13ba MZ |
863 | ret = initxattrs(inode, new_xattrs, fs_data); |
864 | out: | |
9548906b | 865 | for (xattr = new_xattrs; xattr->value != NULL; xattr++) |
823eb1cc | 866 | kfree(xattr->value); |
9d8f13ba MZ |
867 | return (ret == -EOPNOTSUPP) ? 0 : ret; |
868 | } | |
869 | EXPORT_SYMBOL(security_inode_init_security); | |
870 | ||
871 | int security_old_inode_init_security(struct inode *inode, struct inode *dir, | |
9548906b | 872 | const struct qstr *qstr, const char **name, |
9d8f13ba | 873 | void **value, size_t *len) |
20510f2f JM |
874 | { |
875 | if (unlikely(IS_PRIVATE(inode))) | |
30e05324 | 876 | return -EOPNOTSUPP; |
e308fd3b JB |
877 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, |
878 | qstr, name, value, len); | |
20510f2f | 879 | } |
9d8f13ba | 880 | EXPORT_SYMBOL(security_old_inode_init_security); |
20510f2f | 881 | |
be6d3e56 | 882 | #ifdef CONFIG_SECURITY_PATH |
d3607752 | 883 | int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, |
be6d3e56 KT |
884 | unsigned int dev) |
885 | { | |
c6f493d6 | 886 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 887 | return 0; |
f25fce3e | 888 | return call_int_hook(path_mknod, 0, dir, dentry, mode, dev); |
be6d3e56 KT |
889 | } |
890 | EXPORT_SYMBOL(security_path_mknod); | |
891 | ||
d3607752 | 892 | int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode) |
be6d3e56 | 893 | { |
c6f493d6 | 894 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 895 | return 0; |
f25fce3e | 896 | return call_int_hook(path_mkdir, 0, dir, dentry, mode); |
be6d3e56 | 897 | } |
82140443 | 898 | EXPORT_SYMBOL(security_path_mkdir); |
be6d3e56 | 899 | |
989f74e0 | 900 | int security_path_rmdir(const struct path *dir, struct dentry *dentry) |
be6d3e56 | 901 | { |
c6f493d6 | 902 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 903 | return 0; |
f25fce3e | 904 | return call_int_hook(path_rmdir, 0, dir, dentry); |
be6d3e56 | 905 | } |
c088e31d | 906 | EXPORT_SYMBOL_GPL(security_path_rmdir); |
be6d3e56 | 907 | |
989f74e0 | 908 | int security_path_unlink(const struct path *dir, struct dentry *dentry) |
be6d3e56 | 909 | { |
c6f493d6 | 910 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 911 | return 0; |
f25fce3e | 912 | return call_int_hook(path_unlink, 0, dir, dentry); |
be6d3e56 | 913 | } |
82140443 | 914 | EXPORT_SYMBOL(security_path_unlink); |
be6d3e56 | 915 | |
d3607752 | 916 | int security_path_symlink(const struct path *dir, struct dentry *dentry, |
be6d3e56 KT |
917 | const char *old_name) |
918 | { | |
c6f493d6 | 919 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 920 | return 0; |
f25fce3e | 921 | return call_int_hook(path_symlink, 0, dir, dentry, old_name); |
be6d3e56 | 922 | } |
c088e31d | 923 | EXPORT_SYMBOL_GPL(security_path_symlink); |
be6d3e56 | 924 | |
3ccee46a | 925 | int security_path_link(struct dentry *old_dentry, const struct path *new_dir, |
be6d3e56 KT |
926 | struct dentry *new_dentry) |
927 | { | |
c6f493d6 | 928 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
be6d3e56 | 929 | return 0; |
f25fce3e | 930 | return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry); |
be6d3e56 | 931 | } |
c088e31d | 932 | EXPORT_SYMBOL_GPL(security_path_link); |
be6d3e56 | 933 | |
3ccee46a AV |
934 | int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, |
935 | const struct path *new_dir, struct dentry *new_dentry, | |
0b3974eb | 936 | unsigned int flags) |
be6d3e56 | 937 | { |
c6f493d6 DH |
938 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
939 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
be6d3e56 | 940 | return 0; |
da1ce067 MS |
941 | |
942 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e CS |
943 | int err = call_int_hook(path_rename, 0, new_dir, new_dentry, |
944 | old_dir, old_dentry); | |
da1ce067 MS |
945 | if (err) |
946 | return err; | |
947 | } | |
948 | ||
f25fce3e CS |
949 | return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir, |
950 | new_dentry); | |
be6d3e56 | 951 | } |
82140443 | 952 | EXPORT_SYMBOL(security_path_rename); |
be6d3e56 | 953 | |
81f4c506 | 954 | int security_path_truncate(const struct path *path) |
be6d3e56 | 955 | { |
c6f493d6 | 956 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
be6d3e56 | 957 | return 0; |
f25fce3e | 958 | return call_int_hook(path_truncate, 0, path); |
be6d3e56 | 959 | } |
c088e31d | 960 | EXPORT_SYMBOL_GPL(security_path_truncate); |
89eda068 | 961 | |
be01f9f2 | 962 | int security_path_chmod(const struct path *path, umode_t mode) |
89eda068 | 963 | { |
c6f493d6 | 964 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 965 | return 0; |
f25fce3e | 966 | return call_int_hook(path_chmod, 0, path, mode); |
89eda068 | 967 | } |
c088e31d | 968 | EXPORT_SYMBOL_GPL(security_path_chmod); |
89eda068 | 969 | |
7fd25dac | 970 | int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) |
89eda068 | 971 | { |
c6f493d6 | 972 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 973 | return 0; |
f25fce3e | 974 | return call_int_hook(path_chown, 0, path, uid, gid); |
89eda068 | 975 | } |
c088e31d | 976 | EXPORT_SYMBOL_GPL(security_path_chown); |
8b8efb44 | 977 | |
77b286c0 | 978 | int security_path_chroot(const struct path *path) |
8b8efb44 | 979 | { |
f25fce3e | 980 | return call_int_hook(path_chroot, 0, path); |
8b8efb44 | 981 | } |
be6d3e56 KT |
982 | #endif |
983 | ||
4acdaf27 | 984 | int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
985 | { |
986 | if (unlikely(IS_PRIVATE(dir))) | |
987 | return 0; | |
f25fce3e | 988 | return call_int_hook(inode_create, 0, dir, dentry, mode); |
20510f2f | 989 | } |
800a9647 | 990 | EXPORT_SYMBOL_GPL(security_inode_create); |
20510f2f JM |
991 | |
992 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, | |
993 | struct dentry *new_dentry) | |
994 | { | |
c6f493d6 | 995 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
20510f2f | 996 | return 0; |
f25fce3e | 997 | return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry); |
20510f2f JM |
998 | } |
999 | ||
1000 | int security_inode_unlink(struct inode *dir, struct dentry *dentry) | |
1001 | { | |
c6f493d6 | 1002 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1003 | return 0; |
f25fce3e | 1004 | return call_int_hook(inode_unlink, 0, dir, dentry); |
20510f2f JM |
1005 | } |
1006 | ||
1007 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
1008 | const char *old_name) | |
1009 | { | |
1010 | if (unlikely(IS_PRIVATE(dir))) | |
1011 | return 0; | |
f25fce3e | 1012 | return call_int_hook(inode_symlink, 0, dir, dentry, old_name); |
20510f2f JM |
1013 | } |
1014 | ||
18bb1db3 | 1015 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
1016 | { |
1017 | if (unlikely(IS_PRIVATE(dir))) | |
1018 | return 0; | |
f25fce3e | 1019 | return call_int_hook(inode_mkdir, 0, dir, dentry, mode); |
20510f2f | 1020 | } |
800a9647 | 1021 | EXPORT_SYMBOL_GPL(security_inode_mkdir); |
20510f2f JM |
1022 | |
1023 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry) | |
1024 | { | |
c6f493d6 | 1025 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1026 | return 0; |
f25fce3e | 1027 | return call_int_hook(inode_rmdir, 0, dir, dentry); |
20510f2f JM |
1028 | } |
1029 | ||
1a67aafb | 1030 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) |
20510f2f JM |
1031 | { |
1032 | if (unlikely(IS_PRIVATE(dir))) | |
1033 | return 0; | |
f25fce3e | 1034 | return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev); |
20510f2f JM |
1035 | } |
1036 | ||
1037 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, | |
0b3974eb MS |
1038 | struct inode *new_dir, struct dentry *new_dentry, |
1039 | unsigned int flags) | |
20510f2f | 1040 | { |
c6f493d6 DH |
1041 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
1042 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
20510f2f | 1043 | return 0; |
da1ce067 MS |
1044 | |
1045 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e | 1046 | int err = call_int_hook(inode_rename, 0, new_dir, new_dentry, |
da1ce067 MS |
1047 | old_dir, old_dentry); |
1048 | if (err) | |
1049 | return err; | |
1050 | } | |
1051 | ||
f25fce3e | 1052 | return call_int_hook(inode_rename, 0, old_dir, old_dentry, |
20510f2f JM |
1053 | new_dir, new_dentry); |
1054 | } | |
1055 | ||
1056 | int security_inode_readlink(struct dentry *dentry) | |
1057 | { | |
c6f493d6 | 1058 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1059 | return 0; |
f25fce3e | 1060 | return call_int_hook(inode_readlink, 0, dentry); |
20510f2f | 1061 | } |
c088e31d | 1062 | EXPORT_SYMBOL_GPL(security_inode_readlink); |
20510f2f | 1063 | |
bda0be7a N |
1064 | int security_inode_follow_link(struct dentry *dentry, struct inode *inode, |
1065 | bool rcu) | |
20510f2f | 1066 | { |
bda0be7a | 1067 | if (unlikely(IS_PRIVATE(inode))) |
20510f2f | 1068 | return 0; |
e22619a2 | 1069 | return call_int_hook(inode_follow_link, 0, dentry, inode, rcu); |
20510f2f JM |
1070 | } |
1071 | ||
b77b0646 | 1072 | int security_inode_permission(struct inode *inode, int mask) |
20510f2f JM |
1073 | { |
1074 | if (unlikely(IS_PRIVATE(inode))) | |
1075 | return 0; | |
f25fce3e | 1076 | return call_int_hook(inode_permission, 0, inode, mask); |
20510f2f | 1077 | } |
c088e31d | 1078 | EXPORT_SYMBOL_GPL(security_inode_permission); |
20510f2f JM |
1079 | |
1080 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr) | |
1081 | { | |
817b54aa MZ |
1082 | int ret; |
1083 | ||
c6f493d6 | 1084 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1085 | return 0; |
f25fce3e | 1086 | ret = call_int_hook(inode_setattr, 0, dentry, attr); |
817b54aa MZ |
1087 | if (ret) |
1088 | return ret; | |
1089 | return evm_inode_setattr(dentry, attr); | |
20510f2f | 1090 | } |
b1da47e2 | 1091 | EXPORT_SYMBOL_GPL(security_inode_setattr); |
20510f2f | 1092 | |
3f7036a0 | 1093 | int security_inode_getattr(const struct path *path) |
20510f2f | 1094 | { |
c6f493d6 | 1095 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
20510f2f | 1096 | return 0; |
f25fce3e | 1097 | return call_int_hook(inode_getattr, 0, path); |
20510f2f JM |
1098 | } |
1099 | ||
8f0cfa52 DH |
1100 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
1101 | const void *value, size_t size, int flags) | |
20510f2f | 1102 | { |
3e1be52d MZ |
1103 | int ret; |
1104 | ||
c6f493d6 | 1105 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1106 | return 0; |
b1d9e6b0 CS |
1107 | /* |
1108 | * SELinux and Smack integrate the cap call, | |
1109 | * so assume that all LSMs supplying this call do so. | |
1110 | */ | |
1111 | ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size, | |
f25fce3e | 1112 | flags); |
b1d9e6b0 CS |
1113 | |
1114 | if (ret == 1) | |
1115 | ret = cap_inode_setxattr(dentry, name, value, size, flags); | |
42c63330 MZ |
1116 | if (ret) |
1117 | return ret; | |
1118 | ret = ima_inode_setxattr(dentry, name, value, size); | |
3e1be52d MZ |
1119 | if (ret) |
1120 | return ret; | |
1121 | return evm_inode_setxattr(dentry, name, value, size); | |
20510f2f JM |
1122 | } |
1123 | ||
8f0cfa52 DH |
1124 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, |
1125 | const void *value, size_t size, int flags) | |
20510f2f | 1126 | { |
c6f493d6 | 1127 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1128 | return; |
f25fce3e | 1129 | call_void_hook(inode_post_setxattr, dentry, name, value, size, flags); |
3e1be52d | 1130 | evm_inode_post_setxattr(dentry, name, value, size); |
20510f2f JM |
1131 | } |
1132 | ||
8f0cfa52 | 1133 | int security_inode_getxattr(struct dentry *dentry, const char *name) |
20510f2f | 1134 | { |
c6f493d6 | 1135 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1136 | return 0; |
f25fce3e | 1137 | return call_int_hook(inode_getxattr, 0, dentry, name); |
20510f2f JM |
1138 | } |
1139 | ||
1140 | int security_inode_listxattr(struct dentry *dentry) | |
1141 | { | |
c6f493d6 | 1142 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1143 | return 0; |
f25fce3e | 1144 | return call_int_hook(inode_listxattr, 0, dentry); |
20510f2f JM |
1145 | } |
1146 | ||
8f0cfa52 | 1147 | int security_inode_removexattr(struct dentry *dentry, const char *name) |
20510f2f | 1148 | { |
3e1be52d MZ |
1149 | int ret; |
1150 | ||
c6f493d6 | 1151 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 1152 | return 0; |
b1d9e6b0 CS |
1153 | /* |
1154 | * SELinux and Smack integrate the cap call, | |
1155 | * so assume that all LSMs supplying this call do so. | |
1156 | */ | |
1157 | ret = call_int_hook(inode_removexattr, 1, dentry, name); | |
1158 | if (ret == 1) | |
1159 | ret = cap_inode_removexattr(dentry, name); | |
42c63330 MZ |
1160 | if (ret) |
1161 | return ret; | |
1162 | ret = ima_inode_removexattr(dentry, name); | |
3e1be52d MZ |
1163 | if (ret) |
1164 | return ret; | |
1165 | return evm_inode_removexattr(dentry, name); | |
20510f2f JM |
1166 | } |
1167 | ||
b5376771 SH |
1168 | int security_inode_need_killpriv(struct dentry *dentry) |
1169 | { | |
f25fce3e | 1170 | return call_int_hook(inode_need_killpriv, 0, dentry); |
b5376771 SH |
1171 | } |
1172 | ||
1173 | int security_inode_killpriv(struct dentry *dentry) | |
1174 | { | |
f25fce3e | 1175 | return call_int_hook(inode_killpriv, 0, dentry); |
b5376771 SH |
1176 | } |
1177 | ||
ea861dfd | 1178 | int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc) |
20510f2f | 1179 | { |
2885c1e3 CS |
1180 | struct security_hook_list *hp; |
1181 | int rc; | |
1182 | ||
20510f2f | 1183 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 1184 | return -EOPNOTSUPP; |
2885c1e3 CS |
1185 | /* |
1186 | * Only one module will provide an attribute with a given name. | |
1187 | */ | |
1188 | list_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) { | |
1189 | rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc); | |
1190 | if (rc != -EOPNOTSUPP) | |
1191 | return rc; | |
1192 | } | |
1193 | return -EOPNOTSUPP; | |
20510f2f JM |
1194 | } |
1195 | ||
1196 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
1197 | { | |
2885c1e3 CS |
1198 | struct security_hook_list *hp; |
1199 | int rc; | |
1200 | ||
20510f2f | 1201 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 1202 | return -EOPNOTSUPP; |
2885c1e3 CS |
1203 | /* |
1204 | * Only one module will provide an attribute with a given name. | |
1205 | */ | |
1206 | list_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) { | |
1207 | rc = hp->hook.inode_setsecurity(inode, name, value, size, | |
1208 | flags); | |
1209 | if (rc != -EOPNOTSUPP) | |
1210 | return rc; | |
1211 | } | |
1212 | return -EOPNOTSUPP; | |
20510f2f JM |
1213 | } |
1214 | ||
1215 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
1216 | { | |
1217 | if (unlikely(IS_PRIVATE(inode))) | |
1218 | return 0; | |
f25fce3e | 1219 | return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size); |
20510f2f | 1220 | } |
c9bccef6 | 1221 | EXPORT_SYMBOL(security_inode_listsecurity); |
20510f2f | 1222 | |
d6335d77 | 1223 | void security_inode_getsecid(struct inode *inode, u32 *secid) |
8a076191 | 1224 | { |
f25fce3e | 1225 | call_void_hook(inode_getsecid, inode, secid); |
8a076191 AD |
1226 | } |
1227 | ||
d8ad8b49 VG |
1228 | int security_inode_copy_up(struct dentry *src, struct cred **new) |
1229 | { | |
1230 | return call_int_hook(inode_copy_up, 0, src, new); | |
1231 | } | |
1232 | EXPORT_SYMBOL(security_inode_copy_up); | |
1233 | ||
121ab822 VG |
1234 | int security_inode_copy_up_xattr(const char *name) |
1235 | { | |
1236 | return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name); | |
1237 | } | |
1238 | EXPORT_SYMBOL(security_inode_copy_up_xattr); | |
1239 | ||
20510f2f JM |
1240 | int security_file_permission(struct file *file, int mask) |
1241 | { | |
c4ec54b4 EP |
1242 | int ret; |
1243 | ||
f25fce3e | 1244 | ret = call_int_hook(file_permission, 0, file, mask); |
c4ec54b4 EP |
1245 | if (ret) |
1246 | return ret; | |
1247 | ||
1248 | return fsnotify_perm(file, mask); | |
20510f2f | 1249 | } |
c088e31d | 1250 | EXPORT_SYMBOL_GPL(security_file_permission); |
20510f2f JM |
1251 | |
1252 | int security_file_alloc(struct file *file) | |
1253 | { | |
ab9b110b CS |
1254 | int rc = lsm_file_alloc(file); |
1255 | ||
7a90fc39 | 1256 | if (unlikely(rc)) |
ab9b110b CS |
1257 | return rc; |
1258 | rc = call_int_hook(file_alloc_security, 0, file); | |
1259 | if (unlikely(rc)) | |
1260 | security_file_free(file); | |
1261 | return rc; | |
20510f2f JM |
1262 | } |
1263 | ||
1264 | void security_file_free(struct file *file) | |
1265 | { | |
ab9b110b CS |
1266 | void *blob; |
1267 | ||
1268 | if (!lsm_file_cache) | |
1269 | return; | |
1270 | ||
f25fce3e | 1271 | call_void_hook(file_free_security, file); |
ab9b110b CS |
1272 | |
1273 | blob = file->f_security; | |
1274 | file->f_security = NULL; | |
1275 | kmem_cache_free(lsm_file_cache, blob); | |
20510f2f JM |
1276 | } |
1277 | ||
1278 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
1279 | { | |
f25fce3e | 1280 | return call_int_hook(file_ioctl, 0, file, cmd, arg); |
20510f2f JM |
1281 | } |
1282 | ||
98de59bf | 1283 | static inline unsigned long mmap_prot(struct file *file, unsigned long prot) |
20510f2f | 1284 | { |
8b3ec681 | 1285 | /* |
98de59bf AV |
1286 | * Does we have PROT_READ and does the application expect |
1287 | * it to imply PROT_EXEC? If not, nothing to talk about... | |
8b3ec681 | 1288 | */ |
98de59bf AV |
1289 | if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ) |
1290 | return prot; | |
8b3ec681 | 1291 | if (!(current->personality & READ_IMPLIES_EXEC)) |
98de59bf AV |
1292 | return prot; |
1293 | /* | |
1294 | * if that's an anonymous mapping, let it. | |
1295 | */ | |
1296 | if (!file) | |
1297 | return prot | PROT_EXEC; | |
1298 | /* | |
1299 | * ditto if it's not on noexec mount, except that on !MMU we need | |
b4caecd4 | 1300 | * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case |
98de59bf | 1301 | */ |
90f8572b | 1302 | if (!path_noexec(&file->f_path)) { |
8b3ec681 | 1303 | #ifndef CONFIG_MMU |
b4caecd4 CH |
1304 | if (file->f_op->mmap_capabilities) { |
1305 | unsigned caps = file->f_op->mmap_capabilities(file); | |
1306 | if (!(caps & NOMMU_MAP_EXEC)) | |
1307 | return prot; | |
1308 | } | |
8b3ec681 | 1309 | #endif |
98de59bf | 1310 | return prot | PROT_EXEC; |
8b3ec681 | 1311 | } |
98de59bf AV |
1312 | /* anything on noexec mount won't get PROT_EXEC */ |
1313 | return prot; | |
1314 | } | |
1315 | ||
1316 | int security_mmap_file(struct file *file, unsigned long prot, | |
1317 | unsigned long flags) | |
1318 | { | |
1319 | int ret; | |
f25fce3e | 1320 | ret = call_int_hook(mmap_file, 0, file, prot, |
98de59bf | 1321 | mmap_prot(file, prot), flags); |
6c21a7fb MZ |
1322 | if (ret) |
1323 | return ret; | |
1324 | return ima_file_mmap(file, prot); | |
20510f2f | 1325 | } |
c088e31d | 1326 | EXPORT_SYMBOL_GPL(security_mmap_file); |
20510f2f | 1327 | |
e5467859 AV |
1328 | int security_mmap_addr(unsigned long addr) |
1329 | { | |
f25fce3e | 1330 | return call_int_hook(mmap_addr, 0, addr); |
e5467859 AV |
1331 | } |
1332 | ||
20510f2f JM |
1333 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, |
1334 | unsigned long prot) | |
1335 | { | |
f25fce3e | 1336 | return call_int_hook(file_mprotect, 0, vma, reqprot, prot); |
20510f2f JM |
1337 | } |
1338 | ||
1339 | int security_file_lock(struct file *file, unsigned int cmd) | |
1340 | { | |
f25fce3e | 1341 | return call_int_hook(file_lock, 0, file, cmd); |
20510f2f JM |
1342 | } |
1343 | ||
1344 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) | |
1345 | { | |
f25fce3e | 1346 | return call_int_hook(file_fcntl, 0, file, cmd, arg); |
20510f2f JM |
1347 | } |
1348 | ||
e0b93edd | 1349 | void security_file_set_fowner(struct file *file) |
20510f2f | 1350 | { |
f25fce3e | 1351 | call_void_hook(file_set_fowner, file); |
20510f2f JM |
1352 | } |
1353 | ||
1354 | int security_file_send_sigiotask(struct task_struct *tsk, | |
1355 | struct fown_struct *fown, int sig) | |
1356 | { | |
f25fce3e | 1357 | return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig); |
20510f2f JM |
1358 | } |
1359 | ||
1360 | int security_file_receive(struct file *file) | |
1361 | { | |
f25fce3e | 1362 | return call_int_hook(file_receive, 0, file); |
20510f2f JM |
1363 | } |
1364 | ||
83d49856 | 1365 | int security_file_open(struct file *file, const struct cred *cred) |
20510f2f | 1366 | { |
c4ec54b4 EP |
1367 | int ret; |
1368 | ||
f25fce3e | 1369 | ret = call_int_hook(file_open, 0, file, cred); |
c4ec54b4 EP |
1370 | if (ret) |
1371 | return ret; | |
1372 | ||
1373 | return fsnotify_perm(file, MAY_OPEN); | |
20510f2f JM |
1374 | } |
1375 | ||
e4e55b47 TH |
1376 | int security_task_alloc(struct task_struct *task, unsigned long clone_flags) |
1377 | { | |
7f79f508 CS |
1378 | int rc = lsm_task_alloc(task); |
1379 | ||
7a90fc39 | 1380 | if (unlikely(rc)) |
7f79f508 CS |
1381 | return rc; |
1382 | rc = call_int_hook(task_alloc, 0, task, clone_flags); | |
1383 | if (unlikely(rc)) | |
1384 | security_task_free(task); | |
1385 | return rc; | |
e4e55b47 TH |
1386 | } |
1387 | ||
1a2a4d06 KC |
1388 | void security_task_free(struct task_struct *task) |
1389 | { | |
f25fce3e | 1390 | call_void_hook(task_free, task); |
7f79f508 CS |
1391 | |
1392 | kfree(task->security); | |
1393 | task->security = NULL; | |
1a2a4d06 KC |
1394 | } |
1395 | ||
ee18d64c DH |
1396 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
1397 | { | |
f1efc8c4 CS |
1398 | int rc = lsm_cred_alloc(cred, gfp); |
1399 | ||
7a90fc39 | 1400 | if (unlikely(rc)) |
f1efc8c4 CS |
1401 | return rc; |
1402 | ||
1403 | rc = call_int_hook(cred_alloc_blank, 0, cred, gfp); | |
ab9b110b | 1404 | if (unlikely(rc)) |
f1efc8c4 CS |
1405 | security_cred_free(cred); |
1406 | return rc; | |
ee18d64c DH |
1407 | } |
1408 | ||
d84f4f99 | 1409 | void security_cred_free(struct cred *cred) |
20510f2f | 1410 | { |
f25fce3e | 1411 | call_void_hook(cred_free, cred); |
f1efc8c4 CS |
1412 | |
1413 | kfree(cred->security); | |
1414 | cred->security = NULL; | |
20510f2f JM |
1415 | } |
1416 | ||
d84f4f99 | 1417 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) |
20510f2f | 1418 | { |
f1efc8c4 CS |
1419 | int rc = lsm_cred_alloc(new, gfp); |
1420 | ||
7a90fc39 | 1421 | if (unlikely(rc)) |
f1efc8c4 CS |
1422 | return rc; |
1423 | ||
1424 | rc = call_int_hook(cred_prepare, 0, new, old, gfp); | |
ab9b110b | 1425 | if (unlikely(rc)) |
f1efc8c4 CS |
1426 | security_cred_free(new); |
1427 | return rc; | |
d84f4f99 DH |
1428 | } |
1429 | ||
ee18d64c DH |
1430 | void security_transfer_creds(struct cred *new, const struct cred *old) |
1431 | { | |
f25fce3e | 1432 | call_void_hook(cred_transfer, new, old); |
ee18d64c DH |
1433 | } |
1434 | ||
3a3b7ce9 DH |
1435 | int security_kernel_act_as(struct cred *new, u32 secid) |
1436 | { | |
f25fce3e | 1437 | return call_int_hook(kernel_act_as, 0, new, secid); |
3a3b7ce9 DH |
1438 | } |
1439 | ||
1440 | int security_kernel_create_files_as(struct cred *new, struct inode *inode) | |
1441 | { | |
f25fce3e | 1442 | return call_int_hook(kernel_create_files_as, 0, new, inode); |
3a3b7ce9 DH |
1443 | } |
1444 | ||
dd8dbf2e | 1445 | int security_kernel_module_request(char *kmod_name) |
9188499c | 1446 | { |
f25fce3e | 1447 | return call_int_hook(kernel_module_request, 0, kmod_name); |
9188499c EP |
1448 | } |
1449 | ||
39eeb4fb MZ |
1450 | int security_kernel_read_file(struct file *file, enum kernel_read_file_id id) |
1451 | { | |
1452 | int ret; | |
1453 | ||
1454 | ret = call_int_hook(kernel_read_file, 0, file, id); | |
1455 | if (ret) | |
1456 | return ret; | |
1457 | return ima_read_file(file, id); | |
1458 | } | |
1459 | EXPORT_SYMBOL_GPL(security_kernel_read_file); | |
1460 | ||
bc8ca5b9 MZ |
1461 | int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, |
1462 | enum kernel_read_file_id id) | |
b44a7dfc | 1463 | { |
cf222217 MZ |
1464 | int ret; |
1465 | ||
1466 | ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id); | |
1467 | if (ret) | |
1468 | return ret; | |
1469 | return ima_post_read_file(file, buf, size, id); | |
b44a7dfc MZ |
1470 | } |
1471 | EXPORT_SYMBOL_GPL(security_kernel_post_read_file); | |
1472 | ||
d84f4f99 DH |
1473 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1474 | int flags) | |
20510f2f | 1475 | { |
f25fce3e | 1476 | return call_int_hook(task_fix_setuid, 0, new, old, flags); |
20510f2f JM |
1477 | } |
1478 | ||
20510f2f JM |
1479 | int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1480 | { | |
f25fce3e | 1481 | return call_int_hook(task_setpgid, 0, p, pgid); |
20510f2f JM |
1482 | } |
1483 | ||
1484 | int security_task_getpgid(struct task_struct *p) | |
1485 | { | |
f25fce3e | 1486 | return call_int_hook(task_getpgid, 0, p); |
20510f2f JM |
1487 | } |
1488 | ||
1489 | int security_task_getsid(struct task_struct *p) | |
1490 | { | |
f25fce3e | 1491 | return call_int_hook(task_getsid, 0, p); |
20510f2f JM |
1492 | } |
1493 | ||
1494 | void security_task_getsecid(struct task_struct *p, u32 *secid) | |
1495 | { | |
b1d9e6b0 | 1496 | *secid = 0; |
f25fce3e | 1497 | call_void_hook(task_getsecid, p, secid); |
20510f2f JM |
1498 | } |
1499 | EXPORT_SYMBOL(security_task_getsecid); | |
1500 | ||
20510f2f JM |
1501 | int security_task_setnice(struct task_struct *p, int nice) |
1502 | { | |
f25fce3e | 1503 | return call_int_hook(task_setnice, 0, p, nice); |
20510f2f JM |
1504 | } |
1505 | ||
1506 | int security_task_setioprio(struct task_struct *p, int ioprio) | |
1507 | { | |
f25fce3e | 1508 | return call_int_hook(task_setioprio, 0, p, ioprio); |
20510f2f JM |
1509 | } |
1510 | ||
1511 | int security_task_getioprio(struct task_struct *p) | |
1512 | { | |
f25fce3e | 1513 | return call_int_hook(task_getioprio, 0, p); |
20510f2f JM |
1514 | } |
1515 | ||
791ec491 SS |
1516 | int security_task_prlimit(const struct cred *cred, const struct cred *tcred, |
1517 | unsigned int flags) | |
1518 | { | |
1519 | return call_int_hook(task_prlimit, 0, cred, tcred, flags); | |
1520 | } | |
1521 | ||
8fd00b4d JS |
1522 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
1523 | struct rlimit *new_rlim) | |
20510f2f | 1524 | { |
f25fce3e | 1525 | return call_int_hook(task_setrlimit, 0, p, resource, new_rlim); |
20510f2f JM |
1526 | } |
1527 | ||
b0ae1981 | 1528 | int security_task_setscheduler(struct task_struct *p) |
20510f2f | 1529 | { |
f25fce3e | 1530 | return call_int_hook(task_setscheduler, 0, p); |
20510f2f JM |
1531 | } |
1532 | ||
1533 | int security_task_getscheduler(struct task_struct *p) | |
1534 | { | |
f25fce3e | 1535 | return call_int_hook(task_getscheduler, 0, p); |
20510f2f JM |
1536 | } |
1537 | ||
1538 | int security_task_movememory(struct task_struct *p) | |
1539 | { | |
f25fce3e | 1540 | return call_int_hook(task_movememory, 0, p); |
20510f2f JM |
1541 | } |
1542 | ||
1543 | int security_task_kill(struct task_struct *p, struct siginfo *info, | |
1544 | int sig, u32 secid) | |
1545 | { | |
f25fce3e | 1546 | return call_int_hook(task_kill, 0, p, info, sig, secid); |
20510f2f JM |
1547 | } |
1548 | ||
20510f2f | 1549 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 1550 | unsigned long arg4, unsigned long arg5) |
20510f2f | 1551 | { |
b1d9e6b0 CS |
1552 | int thisrc; |
1553 | int rc = -ENOSYS; | |
1554 | struct security_hook_list *hp; | |
1555 | ||
1556 | list_for_each_entry(hp, &security_hook_heads.task_prctl, list) { | |
1557 | thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5); | |
1558 | if (thisrc != -ENOSYS) { | |
1559 | rc = thisrc; | |
1560 | if (thisrc != 0) | |
1561 | break; | |
1562 | } | |
1563 | } | |
1564 | return rc; | |
20510f2f JM |
1565 | } |
1566 | ||
1567 | void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
1568 | { | |
f25fce3e | 1569 | call_void_hook(task_to_inode, p, inode); |
20510f2f JM |
1570 | } |
1571 | ||
1572 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) | |
1573 | { | |
f25fce3e | 1574 | return call_int_hook(ipc_permission, 0, ipcp, flag); |
20510f2f JM |
1575 | } |
1576 | ||
8a076191 AD |
1577 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
1578 | { | |
b1d9e6b0 | 1579 | *secid = 0; |
f25fce3e | 1580 | call_void_hook(ipc_getsecid, ipcp, secid); |
8a076191 AD |
1581 | } |
1582 | ||
20510f2f JM |
1583 | int security_msg_msg_alloc(struct msg_msg *msg) |
1584 | { | |
7a90fc39 CS |
1585 | int rc = lsm_msg_msg_alloc(msg); |
1586 | ||
1587 | if (unlikely(rc)) | |
1588 | return rc; | |
1589 | rc = call_int_hook(msg_msg_alloc_security, 0, msg); | |
1590 | if (unlikely(rc)) | |
1591 | security_msg_msg_free(msg); | |
1592 | return rc; | |
20510f2f JM |
1593 | } |
1594 | ||
1595 | void security_msg_msg_free(struct msg_msg *msg) | |
1596 | { | |
f25fce3e | 1597 | call_void_hook(msg_msg_free_security, msg); |
7a90fc39 CS |
1598 | kfree(msg->security); |
1599 | msg->security = NULL; | |
20510f2f JM |
1600 | } |
1601 | ||
1602 | int security_msg_queue_alloc(struct msg_queue *msq) | |
1603 | { | |
7a90fc39 CS |
1604 | int rc = lsm_ipc_alloc(&msq->q_perm); |
1605 | ||
1606 | if (unlikely(rc)) | |
1607 | return rc; | |
1608 | rc = call_int_hook(msg_queue_alloc_security, 0, msq); | |
1609 | if (unlikely(rc)) | |
1610 | security_msg_queue_free(msq); | |
1611 | return rc; | |
20510f2f JM |
1612 | } |
1613 | ||
1614 | void security_msg_queue_free(struct msg_queue *msq) | |
1615 | { | |
7a90fc39 CS |
1616 | struct kern_ipc_perm *kip = &msq->q_perm; |
1617 | ||
f25fce3e | 1618 | call_void_hook(msg_queue_free_security, msq); |
7a90fc39 CS |
1619 | kfree(kip->security); |
1620 | kip->security = NULL; | |
20510f2f JM |
1621 | } |
1622 | ||
1623 | int security_msg_queue_associate(struct msg_queue *msq, int msqflg) | |
1624 | { | |
f25fce3e | 1625 | return call_int_hook(msg_queue_associate, 0, msq, msqflg); |
20510f2f JM |
1626 | } |
1627 | ||
1628 | int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) | |
1629 | { | |
f25fce3e | 1630 | return call_int_hook(msg_queue_msgctl, 0, msq, cmd); |
20510f2f JM |
1631 | } |
1632 | ||
1633 | int security_msg_queue_msgsnd(struct msg_queue *msq, | |
1634 | struct msg_msg *msg, int msqflg) | |
1635 | { | |
f25fce3e | 1636 | return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg); |
20510f2f JM |
1637 | } |
1638 | ||
1639 | int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, | |
1640 | struct task_struct *target, long type, int mode) | |
1641 | { | |
f25fce3e | 1642 | return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode); |
20510f2f JM |
1643 | } |
1644 | ||
1645 | int security_shm_alloc(struct shmid_kernel *shp) | |
1646 | { | |
7a90fc39 CS |
1647 | int rc = lsm_ipc_alloc(&shp->shm_perm); |
1648 | ||
1649 | if (unlikely(rc)) | |
1650 | return rc; | |
1651 | rc = call_int_hook(shm_alloc_security, 0, shp); | |
1652 | if (unlikely(rc)) | |
1653 | security_shm_free(shp); | |
1654 | return rc; | |
20510f2f JM |
1655 | } |
1656 | ||
1657 | void security_shm_free(struct shmid_kernel *shp) | |
1658 | { | |
7a90fc39 CS |
1659 | struct kern_ipc_perm *kip = &shp->shm_perm; |
1660 | ||
f25fce3e | 1661 | call_void_hook(shm_free_security, shp); |
7a90fc39 CS |
1662 | kfree(kip->security); |
1663 | kip->security = NULL; | |
20510f2f JM |
1664 | } |
1665 | ||
1666 | int security_shm_associate(struct shmid_kernel *shp, int shmflg) | |
1667 | { | |
f25fce3e | 1668 | return call_int_hook(shm_associate, 0, shp, shmflg); |
20510f2f JM |
1669 | } |
1670 | ||
1671 | int security_shm_shmctl(struct shmid_kernel *shp, int cmd) | |
1672 | { | |
f25fce3e | 1673 | return call_int_hook(shm_shmctl, 0, shp, cmd); |
20510f2f JM |
1674 | } |
1675 | ||
1676 | int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) | |
1677 | { | |
f25fce3e | 1678 | return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg); |
20510f2f JM |
1679 | } |
1680 | ||
1681 | int security_sem_alloc(struct sem_array *sma) | |
1682 | { | |
7a90fc39 CS |
1683 | int rc = lsm_ipc_alloc(&sma->sem_perm); |
1684 | ||
1685 | if (unlikely(rc)) | |
1686 | return rc; | |
1687 | rc = call_int_hook(sem_alloc_security, 0, sma); | |
1688 | if (unlikely(rc)) | |
1689 | security_sem_free(sma); | |
1690 | return rc; | |
20510f2f JM |
1691 | } |
1692 | ||
1693 | void security_sem_free(struct sem_array *sma) | |
1694 | { | |
7a90fc39 CS |
1695 | struct kern_ipc_perm *kip = &sma->sem_perm; |
1696 | ||
f25fce3e | 1697 | call_void_hook(sem_free_security, sma); |
7a90fc39 CS |
1698 | kfree(kip->security); |
1699 | kip->security = NULL; | |
20510f2f JM |
1700 | } |
1701 | ||
1702 | int security_sem_associate(struct sem_array *sma, int semflg) | |
1703 | { | |
f25fce3e | 1704 | return call_int_hook(sem_associate, 0, sma, semflg); |
20510f2f JM |
1705 | } |
1706 | ||
1707 | int security_sem_semctl(struct sem_array *sma, int cmd) | |
1708 | { | |
f25fce3e | 1709 | return call_int_hook(sem_semctl, 0, sma, cmd); |
20510f2f JM |
1710 | } |
1711 | ||
1712 | int security_sem_semop(struct sem_array *sma, struct sembuf *sops, | |
1713 | unsigned nsops, int alter) | |
1714 | { | |
f25fce3e | 1715 | return call_int_hook(sem_semop, 0, sma, sops, nsops, alter); |
20510f2f JM |
1716 | } |
1717 | ||
1718 | void security_d_instantiate(struct dentry *dentry, struct inode *inode) | |
1719 | { | |
1720 | if (unlikely(inode && IS_PRIVATE(inode))) | |
1721 | return; | |
f25fce3e | 1722 | call_void_hook(d_instantiate, dentry, inode); |
20510f2f JM |
1723 | } |
1724 | EXPORT_SYMBOL(security_d_instantiate); | |
1725 | ||
dcd148a1 CS |
1726 | int security_getprocattr(struct task_struct *p, const char *lsm, char *name, |
1727 | char **value) | |
20510f2f | 1728 | { |
dcd148a1 CS |
1729 | struct security_hook_list *hp; |
1730 | ||
1731 | list_for_each_entry(hp, &security_hook_heads.getprocattr, list) { | |
1732 | if (lsm != NULL && strcmp(lsm, hp->lsm)) | |
1733 | continue; | |
1734 | return hp->hook.getprocattr(p, name, value); | |
1735 | } | |
1736 | return -EINVAL; | |
20510f2f JM |
1737 | } |
1738 | ||
dcd148a1 CS |
1739 | int security_setprocattr(const char *lsm, const char *name, void *value, |
1740 | size_t size) | |
20510f2f | 1741 | { |
dcd148a1 CS |
1742 | struct security_hook_list *hp; |
1743 | ||
1744 | list_for_each_entry(hp, &security_hook_heads.setprocattr, list) { | |
1745 | if (lsm != NULL && strcmp(lsm, hp->lsm)) | |
1746 | continue; | |
1747 | return hp->hook.setprocattr(name, value, size); | |
1748 | } | |
1749 | return -EINVAL; | |
20510f2f JM |
1750 | } |
1751 | ||
1752 | int security_netlink_send(struct sock *sk, struct sk_buff *skb) | |
1753 | { | |
f25fce3e | 1754 | return call_int_hook(netlink_send, 0, sk, skb); |
20510f2f | 1755 | } |
20510f2f | 1756 | |
746df9b5 DQ |
1757 | int security_ismaclabel(const char *name) |
1758 | { | |
f25fce3e | 1759 | return call_int_hook(ismaclabel, 0, name); |
746df9b5 DQ |
1760 | } |
1761 | EXPORT_SYMBOL(security_ismaclabel); | |
1762 | ||
20510f2f JM |
1763 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
1764 | { | |
b1d9e6b0 CS |
1765 | return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata, |
1766 | seclen); | |
20510f2f JM |
1767 | } |
1768 | EXPORT_SYMBOL(security_secid_to_secctx); | |
1769 | ||
7bf570dc | 1770 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) |
63cb3449 | 1771 | { |
b1d9e6b0 | 1772 | *secid = 0; |
f25fce3e | 1773 | return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid); |
63cb3449 DH |
1774 | } |
1775 | EXPORT_SYMBOL(security_secctx_to_secid); | |
1776 | ||
20510f2f JM |
1777 | void security_release_secctx(char *secdata, u32 seclen) |
1778 | { | |
f25fce3e | 1779 | call_void_hook(release_secctx, secdata, seclen); |
20510f2f JM |
1780 | } |
1781 | EXPORT_SYMBOL(security_release_secctx); | |
1782 | ||
6f3be9f5 AG |
1783 | void security_inode_invalidate_secctx(struct inode *inode) |
1784 | { | |
1785 | call_void_hook(inode_invalidate_secctx, inode); | |
1786 | } | |
1787 | EXPORT_SYMBOL(security_inode_invalidate_secctx); | |
1788 | ||
1ee65e37 DQ |
1789 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) |
1790 | { | |
f25fce3e | 1791 | return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen); |
1ee65e37 DQ |
1792 | } |
1793 | EXPORT_SYMBOL(security_inode_notifysecctx); | |
1794 | ||
1795 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
1796 | { | |
f25fce3e | 1797 | return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen); |
1ee65e37 DQ |
1798 | } |
1799 | EXPORT_SYMBOL(security_inode_setsecctx); | |
1800 | ||
1801 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
1802 | { | |
b1d9e6b0 | 1803 | return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen); |
1ee65e37 DQ |
1804 | } |
1805 | EXPORT_SYMBOL(security_inode_getsecctx); | |
1806 | ||
20510f2f JM |
1807 | #ifdef CONFIG_SECURITY_NETWORK |
1808 | ||
3610cda5 | 1809 | int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) |
20510f2f | 1810 | { |
f25fce3e | 1811 | return call_int_hook(unix_stream_connect, 0, sock, other, newsk); |
20510f2f JM |
1812 | } |
1813 | EXPORT_SYMBOL(security_unix_stream_connect); | |
1814 | ||
1815 | int security_unix_may_send(struct socket *sock, struct socket *other) | |
1816 | { | |
f25fce3e | 1817 | return call_int_hook(unix_may_send, 0, sock, other); |
20510f2f JM |
1818 | } |
1819 | EXPORT_SYMBOL(security_unix_may_send); | |
1820 | ||
1821 | int security_socket_create(int family, int type, int protocol, int kern) | |
1822 | { | |
f25fce3e | 1823 | return call_int_hook(socket_create, 0, family, type, protocol, kern); |
20510f2f JM |
1824 | } |
1825 | ||
1826 | int security_socket_post_create(struct socket *sock, int family, | |
1827 | int type, int protocol, int kern) | |
1828 | { | |
f25fce3e | 1829 | return call_int_hook(socket_post_create, 0, sock, family, type, |
20510f2f JM |
1830 | protocol, kern); |
1831 | } | |
1832 | ||
1833 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) | |
1834 | { | |
f25fce3e | 1835 | return call_int_hook(socket_bind, 0, sock, address, addrlen); |
20510f2f JM |
1836 | } |
1837 | ||
1838 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) | |
1839 | { | |
f25fce3e | 1840 | return call_int_hook(socket_connect, 0, sock, address, addrlen); |
20510f2f JM |
1841 | } |
1842 | ||
1843 | int security_socket_listen(struct socket *sock, int backlog) | |
1844 | { | |
f25fce3e | 1845 | return call_int_hook(socket_listen, 0, sock, backlog); |
20510f2f JM |
1846 | } |
1847 | ||
1848 | int security_socket_accept(struct socket *sock, struct socket *newsock) | |
1849 | { | |
f25fce3e | 1850 | return call_int_hook(socket_accept, 0, sock, newsock); |
20510f2f JM |
1851 | } |
1852 | ||
20510f2f JM |
1853 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) |
1854 | { | |
f25fce3e | 1855 | return call_int_hook(socket_sendmsg, 0, sock, msg, size); |
20510f2f JM |
1856 | } |
1857 | ||
1858 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
1859 | int size, int flags) | |
1860 | { | |
f25fce3e | 1861 | return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags); |
20510f2f JM |
1862 | } |
1863 | ||
1864 | int security_socket_getsockname(struct socket *sock) | |
1865 | { | |
f25fce3e | 1866 | return call_int_hook(socket_getsockname, 0, sock); |
20510f2f JM |
1867 | } |
1868 | ||
1869 | int security_socket_getpeername(struct socket *sock) | |
1870 | { | |
f25fce3e | 1871 | return call_int_hook(socket_getpeername, 0, sock); |
20510f2f JM |
1872 | } |
1873 | ||
1874 | int security_socket_getsockopt(struct socket *sock, int level, int optname) | |
1875 | { | |
f25fce3e | 1876 | return call_int_hook(socket_getsockopt, 0, sock, level, optname); |
20510f2f JM |
1877 | } |
1878 | ||
1879 | int security_socket_setsockopt(struct socket *sock, int level, int optname) | |
1880 | { | |
f25fce3e | 1881 | return call_int_hook(socket_setsockopt, 0, sock, level, optname); |
20510f2f JM |
1882 | } |
1883 | ||
1884 | int security_socket_shutdown(struct socket *sock, int how) | |
1885 | { | |
f25fce3e | 1886 | return call_int_hook(socket_shutdown, 0, sock, how); |
20510f2f JM |
1887 | } |
1888 | ||
1889 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) | |
1890 | { | |
f25fce3e | 1891 | return call_int_hook(socket_sock_rcv_skb, 0, sk, skb); |
20510f2f JM |
1892 | } |
1893 | EXPORT_SYMBOL(security_sock_rcv_skb); | |
1894 | ||
1895 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
1896 | int __user *optlen, unsigned len) | |
1897 | { | |
8e42f92b JJ |
1898 | #ifdef CONFIG_SECURITY_STACKING |
1899 | struct security_hook_list *hp; | |
1900 | char *lsm = lsm_of_task(current); | |
1901 | ||
1902 | list_for_each_entry(hp, &security_hook_heads.socket_getpeersec_stream, | |
1903 | list) { | |
1904 | if (!lsm || !lsm[0] || !strcmp(lsm, hp->lsm)) | |
1905 | return hp->hook.socket_getpeersec_stream(sock, optval, | |
1906 | optlen, len); | |
1907 | } | |
1908 | return -ENOPROTOOPT; | |
1909 | #else | |
b1d9e6b0 CS |
1910 | return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock, |
1911 | optval, optlen, len); | |
8e42f92b | 1912 | #endif |
20510f2f JM |
1913 | } |
1914 | ||
1915 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) | |
1916 | { | |
e308fd3b JB |
1917 | return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock, |
1918 | skb, secid); | |
20510f2f JM |
1919 | } |
1920 | EXPORT_SYMBOL(security_socket_getpeersec_dgram); | |
1921 | ||
1922 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority) | |
1923 | { | |
7a90fc39 CS |
1924 | int rc = lsm_sock_alloc(sk, priority); |
1925 | ||
1926 | if (unlikely(rc)) | |
1927 | return rc; | |
1928 | rc = call_int_hook(sk_alloc_security, 0, sk, family, priority); | |
1929 | if (unlikely(rc)) | |
1930 | security_sk_free(sk); | |
1931 | return rc; | |
20510f2f JM |
1932 | } |
1933 | ||
1934 | void security_sk_free(struct sock *sk) | |
1935 | { | |
f25fce3e | 1936 | call_void_hook(sk_free_security, sk); |
7a90fc39 CS |
1937 | kfree(sk->sk_security); |
1938 | sk->sk_security = NULL; | |
20510f2f JM |
1939 | } |
1940 | ||
1941 | void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1942 | { | |
f25fce3e | 1943 | call_void_hook(sk_clone_security, sk, newsk); |
20510f2f | 1944 | } |
6230c9b4 | 1945 | EXPORT_SYMBOL(security_sk_clone); |
20510f2f JM |
1946 | |
1947 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl) | |
1948 | { | |
f25fce3e | 1949 | call_void_hook(sk_getsecid, sk, &fl->flowi_secid); |
20510f2f JM |
1950 | } |
1951 | EXPORT_SYMBOL(security_sk_classify_flow); | |
1952 | ||
1953 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
1954 | { | |
f25fce3e | 1955 | call_void_hook(req_classify_flow, req, fl); |
20510f2f JM |
1956 | } |
1957 | EXPORT_SYMBOL(security_req_classify_flow); | |
1958 | ||
1959 | void security_sock_graft(struct sock *sk, struct socket *parent) | |
1960 | { | |
f25fce3e | 1961 | call_void_hook(sock_graft, sk, parent); |
20510f2f JM |
1962 | } |
1963 | EXPORT_SYMBOL(security_sock_graft); | |
1964 | ||
1965 | int security_inet_conn_request(struct sock *sk, | |
1966 | struct sk_buff *skb, struct request_sock *req) | |
1967 | { | |
f25fce3e | 1968 | return call_int_hook(inet_conn_request, 0, sk, skb, req); |
20510f2f JM |
1969 | } |
1970 | EXPORT_SYMBOL(security_inet_conn_request); | |
1971 | ||
1972 | void security_inet_csk_clone(struct sock *newsk, | |
1973 | const struct request_sock *req) | |
1974 | { | |
f25fce3e | 1975 | call_void_hook(inet_csk_clone, newsk, req); |
20510f2f JM |
1976 | } |
1977 | ||
1978 | void security_inet_conn_established(struct sock *sk, | |
1979 | struct sk_buff *skb) | |
1980 | { | |
f25fce3e | 1981 | call_void_hook(inet_conn_established, sk, skb); |
20510f2f JM |
1982 | } |
1983 | ||
2606fd1f EP |
1984 | int security_secmark_relabel_packet(u32 secid) |
1985 | { | |
f25fce3e | 1986 | return call_int_hook(secmark_relabel_packet, 0, secid); |
2606fd1f EP |
1987 | } |
1988 | EXPORT_SYMBOL(security_secmark_relabel_packet); | |
1989 | ||
1990 | void security_secmark_refcount_inc(void) | |
1991 | { | |
f25fce3e | 1992 | call_void_hook(secmark_refcount_inc); |
2606fd1f EP |
1993 | } |
1994 | EXPORT_SYMBOL(security_secmark_refcount_inc); | |
1995 | ||
1996 | void security_secmark_refcount_dec(void) | |
1997 | { | |
f25fce3e | 1998 | call_void_hook(secmark_refcount_dec); |
2606fd1f EP |
1999 | } |
2000 | EXPORT_SYMBOL(security_secmark_refcount_dec); | |
2001 | ||
5dbbaf2d PM |
2002 | int security_tun_dev_alloc_security(void **security) |
2003 | { | |
f25fce3e | 2004 | return call_int_hook(tun_dev_alloc_security, 0, security); |
5dbbaf2d PM |
2005 | } |
2006 | EXPORT_SYMBOL(security_tun_dev_alloc_security); | |
2007 | ||
2008 | void security_tun_dev_free_security(void *security) | |
2009 | { | |
f25fce3e | 2010 | call_void_hook(tun_dev_free_security, security); |
5dbbaf2d PM |
2011 | } |
2012 | EXPORT_SYMBOL(security_tun_dev_free_security); | |
2013 | ||
2b980dbd PM |
2014 | int security_tun_dev_create(void) |
2015 | { | |
f25fce3e | 2016 | return call_int_hook(tun_dev_create, 0); |
2b980dbd PM |
2017 | } |
2018 | EXPORT_SYMBOL(security_tun_dev_create); | |
2019 | ||
5dbbaf2d | 2020 | int security_tun_dev_attach_queue(void *security) |
2b980dbd | 2021 | { |
f25fce3e | 2022 | return call_int_hook(tun_dev_attach_queue, 0, security); |
2b980dbd | 2023 | } |
5dbbaf2d | 2024 | EXPORT_SYMBOL(security_tun_dev_attach_queue); |
2b980dbd | 2025 | |
5dbbaf2d | 2026 | int security_tun_dev_attach(struct sock *sk, void *security) |
2b980dbd | 2027 | { |
f25fce3e | 2028 | return call_int_hook(tun_dev_attach, 0, sk, security); |
2b980dbd PM |
2029 | } |
2030 | EXPORT_SYMBOL(security_tun_dev_attach); | |
2031 | ||
5dbbaf2d PM |
2032 | int security_tun_dev_open(void *security) |
2033 | { | |
f25fce3e | 2034 | return call_int_hook(tun_dev_open, 0, security); |
5dbbaf2d PM |
2035 | } |
2036 | EXPORT_SYMBOL(security_tun_dev_open); | |
2037 | ||
20510f2f JM |
2038 | #endif /* CONFIG_SECURITY_NETWORK */ |
2039 | ||
d291f1a6 DJ |
2040 | #ifdef CONFIG_SECURITY_INFINIBAND |
2041 | ||
2042 | int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) | |
2043 | { | |
2044 | return call_int_hook(ib_pkey_access, 0, sec, subnet_prefix, pkey); | |
2045 | } | |
2046 | EXPORT_SYMBOL(security_ib_pkey_access); | |
2047 | ||
47a2b338 DJ |
2048 | int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) |
2049 | { | |
2050 | return call_int_hook(ib_endport_manage_subnet, 0, sec, dev_name, port_num); | |
2051 | } | |
2052 | EXPORT_SYMBOL(security_ib_endport_manage_subnet); | |
2053 | ||
d291f1a6 DJ |
2054 | int security_ib_alloc_security(void **sec) |
2055 | { | |
2056 | return call_int_hook(ib_alloc_security, 0, sec); | |
2057 | } | |
2058 | EXPORT_SYMBOL(security_ib_alloc_security); | |
2059 | ||
2060 | void security_ib_free_security(void *sec) | |
2061 | { | |
2062 | call_void_hook(ib_free_security, sec); | |
2063 | } | |
2064 | EXPORT_SYMBOL(security_ib_free_security); | |
2065 | #endif /* CONFIG_SECURITY_INFINIBAND */ | |
2066 | ||
20510f2f JM |
2067 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
2068 | ||
52a4c640 NA |
2069 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, |
2070 | struct xfrm_user_sec_ctx *sec_ctx, | |
2071 | gfp_t gfp) | |
20510f2f | 2072 | { |
f25fce3e | 2073 | return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp); |
20510f2f JM |
2074 | } |
2075 | EXPORT_SYMBOL(security_xfrm_policy_alloc); | |
2076 | ||
03e1ad7b PM |
2077 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, |
2078 | struct xfrm_sec_ctx **new_ctxp) | |
20510f2f | 2079 | { |
f25fce3e | 2080 | return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp); |
20510f2f JM |
2081 | } |
2082 | ||
03e1ad7b | 2083 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
20510f2f | 2084 | { |
f25fce3e | 2085 | call_void_hook(xfrm_policy_free_security, ctx); |
20510f2f JM |
2086 | } |
2087 | EXPORT_SYMBOL(security_xfrm_policy_free); | |
2088 | ||
03e1ad7b | 2089 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
20510f2f | 2090 | { |
f25fce3e | 2091 | return call_int_hook(xfrm_policy_delete_security, 0, ctx); |
20510f2f JM |
2092 | } |
2093 | ||
2e5aa866 PM |
2094 | int security_xfrm_state_alloc(struct xfrm_state *x, |
2095 | struct xfrm_user_sec_ctx *sec_ctx) | |
20510f2f | 2096 | { |
f25fce3e | 2097 | return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx); |
20510f2f JM |
2098 | } |
2099 | EXPORT_SYMBOL(security_xfrm_state_alloc); | |
2100 | ||
2101 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
2102 | struct xfrm_sec_ctx *polsec, u32 secid) | |
2103 | { | |
f25fce3e | 2104 | return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid); |
20510f2f JM |
2105 | } |
2106 | ||
2107 | int security_xfrm_state_delete(struct xfrm_state *x) | |
2108 | { | |
f25fce3e | 2109 | return call_int_hook(xfrm_state_delete_security, 0, x); |
20510f2f JM |
2110 | } |
2111 | EXPORT_SYMBOL(security_xfrm_state_delete); | |
2112 | ||
2113 | void security_xfrm_state_free(struct xfrm_state *x) | |
2114 | { | |
f25fce3e | 2115 | call_void_hook(xfrm_state_free_security, x); |
20510f2f JM |
2116 | } |
2117 | ||
03e1ad7b | 2118 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
20510f2f | 2119 | { |
f25fce3e | 2120 | return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir); |
20510f2f JM |
2121 | } |
2122 | ||
2123 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
e33f7704 DM |
2124 | struct xfrm_policy *xp, |
2125 | const struct flowi *fl) | |
20510f2f | 2126 | { |
b1d9e6b0 CS |
2127 | struct security_hook_list *hp; |
2128 | int rc = 1; | |
2129 | ||
2130 | /* | |
2131 | * Since this function is expected to return 0 or 1, the judgment | |
2132 | * becomes difficult if multiple LSMs supply this call. Fortunately, | |
2133 | * we can use the first LSM's judgment because currently only SELinux | |
2134 | * supplies this call. | |
2135 | * | |
2136 | * For speed optimization, we explicitly break the loop rather than | |
2137 | * using the macro | |
2138 | */ | |
2139 | list_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match, | |
2140 | list) { | |
2141 | rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl); | |
2142 | break; | |
2143 | } | |
2144 | return rc; | |
20510f2f JM |
2145 | } |
2146 | ||
2147 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) | |
2148 | { | |
f25fce3e | 2149 | return call_int_hook(xfrm_decode_session, 0, skb, secid, 1); |
20510f2f JM |
2150 | } |
2151 | ||
2152 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) | |
2153 | { | |
f25fce3e CS |
2154 | int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid, |
2155 | 0); | |
20510f2f JM |
2156 | |
2157 | BUG_ON(rc); | |
2158 | } | |
2159 | EXPORT_SYMBOL(security_skb_classify_flow); | |
2160 | ||
2161 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ | |
2162 | ||
2163 | #ifdef CONFIG_KEYS | |
2164 | ||
d84f4f99 DH |
2165 | int security_key_alloc(struct key *key, const struct cred *cred, |
2166 | unsigned long flags) | |
20510f2f | 2167 | { |
7a90fc39 CS |
2168 | int rc = lsm_key_alloc(key); |
2169 | ||
2170 | if (unlikely(rc)) | |
2171 | return rc; | |
2172 | rc = call_int_hook(key_alloc, 0, key, cred, flags); | |
2173 | if (unlikely(rc)) | |
2174 | security_key_free(key); | |
2175 | return rc; | |
20510f2f JM |
2176 | } |
2177 | ||
2178 | void security_key_free(struct key *key) | |
2179 | { | |
f25fce3e | 2180 | call_void_hook(key_free, key); |
7a90fc39 CS |
2181 | kfree(key->security); |
2182 | key->security = NULL; | |
20510f2f JM |
2183 | } |
2184 | ||
2185 | int security_key_permission(key_ref_t key_ref, | |
f5895943 | 2186 | const struct cred *cred, unsigned perm) |
20510f2f | 2187 | { |
f25fce3e | 2188 | return call_int_hook(key_permission, 0, key_ref, cred, perm); |
20510f2f JM |
2189 | } |
2190 | ||
70a5bb72 DH |
2191 | int security_key_getsecurity(struct key *key, char **_buffer) |
2192 | { | |
b1d9e6b0 | 2193 | *_buffer = NULL; |
f25fce3e | 2194 | return call_int_hook(key_getsecurity, 0, key, _buffer); |
70a5bb72 DH |
2195 | } |
2196 | ||
20510f2f | 2197 | #endif /* CONFIG_KEYS */ |
03d37d25 AD |
2198 | |
2199 | #ifdef CONFIG_AUDIT | |
2200 | ||
2201 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) | |
2202 | { | |
f25fce3e | 2203 | return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule); |
03d37d25 AD |
2204 | } |
2205 | ||
2206 | int security_audit_rule_known(struct audit_krule *krule) | |
2207 | { | |
f25fce3e | 2208 | return call_int_hook(audit_rule_known, 0, krule); |
03d37d25 AD |
2209 | } |
2210 | ||
2211 | void security_audit_rule_free(void *lsmrule) | |
2212 | { | |
f25fce3e | 2213 | call_void_hook(audit_rule_free, lsmrule); |
03d37d25 AD |
2214 | } |
2215 | ||
2216 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
2217 | struct audit_context *actx) | |
2218 | { | |
f25fce3e CS |
2219 | return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule, |
2220 | actx); | |
03d37d25 | 2221 | } |
b1d9e6b0 | 2222 | #endif /* CONFIG_AUDIT */ |
afdb09c7 CF |
2223 | |
2224 | #ifdef CONFIG_BPF_SYSCALL | |
2225 | int security_bpf(int cmd, union bpf_attr *attr, unsigned int size) | |
2226 | { | |
2227 | return call_int_hook(bpf, 0, cmd, attr, size); | |
2228 | } | |
2229 | int security_bpf_map(struct bpf_map *map, fmode_t fmode) | |
2230 | { | |
2231 | return call_int_hook(bpf_map, 0, map, fmode); | |
2232 | } | |
2233 | int security_bpf_prog(struct bpf_prog *prog) | |
2234 | { | |
2235 | return call_int_hook(bpf_prog, 0, prog); | |
2236 | } | |
2237 | int security_bpf_map_alloc(struct bpf_map *map) | |
2238 | { | |
2239 | return call_int_hook(bpf_map_alloc_security, 0, map); | |
2240 | } | |
2241 | int security_bpf_prog_alloc(struct bpf_prog_aux *aux) | |
2242 | { | |
2243 | return call_int_hook(bpf_prog_alloc_security, 0, aux); | |
2244 | } | |
2245 | void security_bpf_map_free(struct bpf_map *map) | |
2246 | { | |
2247 | call_void_hook(bpf_map_free_security, map); | |
2248 | } | |
2249 | void security_bpf_prog_free(struct bpf_prog_aux *aux) | |
2250 | { | |
2251 | call_void_hook(bpf_prog_free_security, aux); | |
2252 | } | |
2253 | #endif /* CONFIG_BPF_SYSCALL */ |