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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Security plug functions | |
3 | * | |
4 | * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> | |
5 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> | |
6 | * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> | |
d291f1a6 | 7 | * Copyright (C) 2016 Mellanox Technologies |
1da177e4 LT |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | */ | |
14 | ||
9b8c7c14 KC |
15 | #define pr_fmt(fmt) "LSM: " fmt |
16 | ||
afdb09c7 | 17 | #include <linux/bpf.h> |
c59ede7b | 18 | #include <linux/capability.h> |
d47be3df | 19 | #include <linux/dcache.h> |
876979c9 | 20 | #include <linux/export.h> |
1da177e4 LT |
21 | #include <linux/init.h> |
22 | #include <linux/kernel.h> | |
3c4ed7bd | 23 | #include <linux/lsm_hooks.h> |
f381c272 | 24 | #include <linux/integrity.h> |
6c21a7fb | 25 | #include <linux/ima.h> |
3e1be52d | 26 | #include <linux/evm.h> |
40401530 | 27 | #include <linux/fsnotify.h> |
8b3ec681 AV |
28 | #include <linux/mman.h> |
29 | #include <linux/mount.h> | |
30 | #include <linux/personality.h> | |
75331a59 | 31 | #include <linux/backing-dev.h> |
3bb857e4 | 32 | #include <linux/string.h> |
40401530 | 33 | #include <net/flow.h> |
1da177e4 | 34 | |
823eb1cc | 35 | #define MAX_LSM_EVM_XATTR 2 |
1da177e4 | 36 | |
b1d9e6b0 CS |
37 | /* Maximum number of letters for an LSM name string */ |
38 | #define SECURITY_NAME_MAX 10 | |
39 | ||
3dfc9b02 | 40 | struct security_hook_heads security_hook_heads __lsm_ro_after_init; |
8f408ab6 DJ |
41 | static ATOMIC_NOTIFIER_HEAD(lsm_notifier_chain); |
42 | ||
d69dece5 | 43 | char *lsm_names; |
076c54c5 | 44 | /* Boot-time LSM user choice */ |
6e65f92f JJ |
45 | static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = |
46 | CONFIG_DEFAULT_SECURITY; | |
1da177e4 | 47 | |
9b8c7c14 KC |
48 | static __initdata bool debug; |
49 | #define init_debug(...) \ | |
50 | do { \ | |
51 | if (debug) \ | |
52 | pr_info(__VA_ARGS__); \ | |
53 | } while (0) | |
54 | ||
657d910b KC |
55 | static void __init ordered_lsm_init(void) |
56 | { | |
57 | struct lsm_info *lsm; | |
58 | int ret; | |
59 | ||
60 | for (lsm = __start_lsm_info; lsm < __end_lsm_info; lsm++) { | |
61 | if ((lsm->flags & LSM_FLAG_LEGACY_MAJOR) != 0) | |
62 | continue; | |
63 | ||
64 | init_debug("initializing %s\n", lsm->name); | |
65 | ret = lsm->init(); | |
66 | WARN(ret, "%s failed to initialize: %d\n", lsm->name, ret); | |
67 | } | |
68 | } | |
69 | ||
5b89c1bd | 70 | static void __init major_lsm_init(void) |
1da177e4 | 71 | { |
5b89c1bd | 72 | struct lsm_info *lsm; |
58eacfff | 73 | int ret; |
5b89c1bd KC |
74 | |
75 | for (lsm = __start_lsm_info; lsm < __end_lsm_info; lsm++) { | |
657d910b KC |
76 | if ((lsm->flags & LSM_FLAG_LEGACY_MAJOR) == 0) |
77 | continue; | |
78 | ||
9b8c7c14 | 79 | init_debug("initializing %s\n", lsm->name); |
3f6caaf5 KC |
80 | ret = lsm->init(); |
81 | WARN(ret, "%s failed to initialize: %d\n", lsm->name, ret); | |
1da177e4 LT |
82 | } |
83 | } | |
84 | ||
85 | /** | |
86 | * security_init - initializes the security framework | |
87 | * | |
88 | * This should be called early in the kernel initialization sequence. | |
89 | */ | |
90 | int __init security_init(void) | |
91 | { | |
3dfc9b02 | 92 | int i; |
df0ce173 | 93 | struct hlist_head *list = (struct hlist_head *) &security_hook_heads; |
3dfc9b02 | 94 | |
98d29170 KC |
95 | pr_info("Security Framework initializing\n"); |
96 | ||
df0ce173 | 97 | for (i = 0; i < sizeof(security_hook_heads) / sizeof(struct hlist_head); |
3dfc9b02 | 98 | i++) |
df0ce173 | 99 | INIT_HLIST_HEAD(&list[i]); |
1da177e4 | 100 | |
b1d9e6b0 | 101 | /* |
730daa16 | 102 | * Load minor LSMs, with the capability module always first. |
b1d9e6b0 CS |
103 | */ |
104 | capability_add_hooks(); | |
b1d9e6b0 | 105 | yama_add_hooks(); |
9b091556 | 106 | loadpin_add_hooks(); |
730daa16 | 107 | |
657d910b KC |
108 | /* Load LSMs in specified order. */ |
109 | ordered_lsm_init(); | |
110 | ||
b1d9e6b0 | 111 | /* |
730daa16 | 112 | * Load all the remaining security modules. |
b1d9e6b0 | 113 | */ |
5b89c1bd | 114 | major_lsm_init(); |
1da177e4 LT |
115 | |
116 | return 0; | |
117 | } | |
118 | ||
076c54c5 AD |
119 | /* Save user chosen LSM */ |
120 | static int __init choose_lsm(char *str) | |
121 | { | |
122 | strncpy(chosen_lsm, str, SECURITY_NAME_MAX); | |
123 | return 1; | |
124 | } | |
125 | __setup("security=", choose_lsm); | |
126 | ||
9b8c7c14 KC |
127 | /* Enable LSM order debugging. */ |
128 | static int __init enable_debug(char *str) | |
129 | { | |
130 | debug = true; | |
131 | return 1; | |
132 | } | |
133 | __setup("lsm.debug", enable_debug); | |
134 | ||
3bb857e4 MS |
135 | static bool match_last_lsm(const char *list, const char *lsm) |
136 | { | |
137 | const char *last; | |
138 | ||
139 | if (WARN_ON(!list || !lsm)) | |
140 | return false; | |
141 | last = strrchr(list, ','); | |
142 | if (last) | |
143 | /* Pass the comma, strcmp() will check for '\0' */ | |
144 | last++; | |
145 | else | |
146 | last = list; | |
147 | return !strcmp(last, lsm); | |
148 | } | |
149 | ||
d69dece5 CS |
150 | static int lsm_append(char *new, char **result) |
151 | { | |
152 | char *cp; | |
153 | ||
154 | if (*result == NULL) { | |
155 | *result = kstrdup(new, GFP_KERNEL); | |
87ea5843 EB |
156 | if (*result == NULL) |
157 | return -ENOMEM; | |
d69dece5 | 158 | } else { |
3bb857e4 MS |
159 | /* Check if it is the last registered name */ |
160 | if (match_last_lsm(*result, new)) | |
161 | return 0; | |
d69dece5 CS |
162 | cp = kasprintf(GFP_KERNEL, "%s,%s", *result, new); |
163 | if (cp == NULL) | |
164 | return -ENOMEM; | |
165 | kfree(*result); | |
166 | *result = cp; | |
167 | } | |
168 | return 0; | |
169 | } | |
170 | ||
076c54c5 AD |
171 | /** |
172 | * security_module_enable - Load given security module on boot ? | |
b1d9e6b0 | 173 | * @module: the name of the module |
076c54c5 AD |
174 | * |
175 | * Each LSM must pass this method before registering its own operations | |
176 | * to avoid security registration races. This method may also be used | |
7cea51be | 177 | * to check if your LSM is currently loaded during kernel initialization. |
076c54c5 | 178 | * |
0e056eb5 MCC |
179 | * Returns: |
180 | * | |
181 | * true if: | |
182 | * | |
183 | * - The passed LSM is the one chosen by user at boot time, | |
184 | * - or the passed LSM is configured as the default and the user did not | |
185 | * choose an alternate LSM at boot time. | |
186 | * | |
076c54c5 AD |
187 | * Otherwise, return false. |
188 | */ | |
b1d9e6b0 | 189 | int __init security_module_enable(const char *module) |
076c54c5 | 190 | { |
b1d9e6b0 | 191 | return !strcmp(module, chosen_lsm); |
076c54c5 AD |
192 | } |
193 | ||
d69dece5 CS |
194 | /** |
195 | * security_add_hooks - Add a modules hooks to the hook lists. | |
196 | * @hooks: the hooks to add | |
197 | * @count: the number of hooks to add | |
198 | * @lsm: the name of the security module | |
199 | * | |
200 | * Each LSM has to register its hooks with the infrastructure. | |
201 | */ | |
202 | void __init security_add_hooks(struct security_hook_list *hooks, int count, | |
203 | char *lsm) | |
204 | { | |
205 | int i; | |
206 | ||
207 | for (i = 0; i < count; i++) { | |
208 | hooks[i].lsm = lsm; | |
df0ce173 | 209 | hlist_add_tail_rcu(&hooks[i].list, hooks[i].head); |
d69dece5 CS |
210 | } |
211 | if (lsm_append(lsm, &lsm_names) < 0) | |
212 | panic("%s - Cannot get early memory.\n", __func__); | |
213 | } | |
214 | ||
8f408ab6 DJ |
215 | int call_lsm_notifier(enum lsm_event event, void *data) |
216 | { | |
217 | return atomic_notifier_call_chain(&lsm_notifier_chain, event, data); | |
218 | } | |
219 | EXPORT_SYMBOL(call_lsm_notifier); | |
220 | ||
221 | int register_lsm_notifier(struct notifier_block *nb) | |
222 | { | |
223 | return atomic_notifier_chain_register(&lsm_notifier_chain, nb); | |
224 | } | |
225 | EXPORT_SYMBOL(register_lsm_notifier); | |
226 | ||
227 | int unregister_lsm_notifier(struct notifier_block *nb) | |
228 | { | |
229 | return atomic_notifier_chain_unregister(&lsm_notifier_chain, nb); | |
230 | } | |
231 | EXPORT_SYMBOL(unregister_lsm_notifier); | |
232 | ||
f25fce3e | 233 | /* |
b1d9e6b0 | 234 | * Hook list operation macros. |
1da177e4 | 235 | * |
f25fce3e CS |
236 | * call_void_hook: |
237 | * This is a hook that does not return a value. | |
1da177e4 | 238 | * |
f25fce3e CS |
239 | * call_int_hook: |
240 | * This is a hook that returns a value. | |
1da177e4 | 241 | */ |
1da177e4 | 242 | |
b1d9e6b0 CS |
243 | #define call_void_hook(FUNC, ...) \ |
244 | do { \ | |
245 | struct security_hook_list *P; \ | |
246 | \ | |
df0ce173 | 247 | hlist_for_each_entry(P, &security_hook_heads.FUNC, list) \ |
b1d9e6b0 CS |
248 | P->hook.FUNC(__VA_ARGS__); \ |
249 | } while (0) | |
250 | ||
251 | #define call_int_hook(FUNC, IRC, ...) ({ \ | |
252 | int RC = IRC; \ | |
253 | do { \ | |
254 | struct security_hook_list *P; \ | |
255 | \ | |
df0ce173 | 256 | hlist_for_each_entry(P, &security_hook_heads.FUNC, list) { \ |
b1d9e6b0 CS |
257 | RC = P->hook.FUNC(__VA_ARGS__); \ |
258 | if (RC != 0) \ | |
259 | break; \ | |
260 | } \ | |
261 | } while (0); \ | |
262 | RC; \ | |
263 | }) | |
1da177e4 | 264 | |
20510f2f JM |
265 | /* Security operations */ |
266 | ||
79af7307 SS |
267 | int security_binder_set_context_mgr(struct task_struct *mgr) |
268 | { | |
f25fce3e | 269 | return call_int_hook(binder_set_context_mgr, 0, mgr); |
79af7307 SS |
270 | } |
271 | ||
272 | int security_binder_transaction(struct task_struct *from, | |
273 | struct task_struct *to) | |
274 | { | |
f25fce3e | 275 | return call_int_hook(binder_transaction, 0, from, to); |
79af7307 SS |
276 | } |
277 | ||
278 | int security_binder_transfer_binder(struct task_struct *from, | |
279 | struct task_struct *to) | |
280 | { | |
f25fce3e | 281 | return call_int_hook(binder_transfer_binder, 0, from, to); |
79af7307 SS |
282 | } |
283 | ||
284 | int security_binder_transfer_file(struct task_struct *from, | |
285 | struct task_struct *to, struct file *file) | |
286 | { | |
f25fce3e | 287 | return call_int_hook(binder_transfer_file, 0, from, to, file); |
79af7307 SS |
288 | } |
289 | ||
9e48858f | 290 | int security_ptrace_access_check(struct task_struct *child, unsigned int mode) |
20510f2f | 291 | { |
f25fce3e | 292 | return call_int_hook(ptrace_access_check, 0, child, mode); |
5cd9c58f DH |
293 | } |
294 | ||
295 | int security_ptrace_traceme(struct task_struct *parent) | |
296 | { | |
f25fce3e | 297 | return call_int_hook(ptrace_traceme, 0, parent); |
20510f2f JM |
298 | } |
299 | ||
300 | int security_capget(struct task_struct *target, | |
301 | kernel_cap_t *effective, | |
302 | kernel_cap_t *inheritable, | |
303 | kernel_cap_t *permitted) | |
304 | { | |
f25fce3e CS |
305 | return call_int_hook(capget, 0, target, |
306 | effective, inheritable, permitted); | |
20510f2f JM |
307 | } |
308 | ||
d84f4f99 DH |
309 | int security_capset(struct cred *new, const struct cred *old, |
310 | const kernel_cap_t *effective, | |
311 | const kernel_cap_t *inheritable, | |
312 | const kernel_cap_t *permitted) | |
20510f2f | 313 | { |
f25fce3e CS |
314 | return call_int_hook(capset, 0, new, old, |
315 | effective, inheritable, permitted); | |
20510f2f JM |
316 | } |
317 | ||
b7e724d3 | 318 | int security_capable(const struct cred *cred, struct user_namespace *ns, |
3486740a | 319 | int cap) |
20510f2f | 320 | { |
f25fce3e | 321 | return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_AUDIT); |
06112163 EP |
322 | } |
323 | ||
c7eba4a9 EP |
324 | int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, |
325 | int cap) | |
06112163 | 326 | { |
f25fce3e | 327 | return call_int_hook(capable, 0, cred, ns, cap, SECURITY_CAP_NOAUDIT); |
20510f2f JM |
328 | } |
329 | ||
20510f2f JM |
330 | int security_quotactl(int cmds, int type, int id, struct super_block *sb) |
331 | { | |
f25fce3e | 332 | return call_int_hook(quotactl, 0, cmds, type, id, sb); |
20510f2f JM |
333 | } |
334 | ||
335 | int security_quota_on(struct dentry *dentry) | |
336 | { | |
f25fce3e | 337 | return call_int_hook(quota_on, 0, dentry); |
20510f2f JM |
338 | } |
339 | ||
12b3052c | 340 | int security_syslog(int type) |
20510f2f | 341 | { |
f25fce3e | 342 | return call_int_hook(syslog, 0, type); |
20510f2f JM |
343 | } |
344 | ||
457db29b | 345 | int security_settime64(const struct timespec64 *ts, const struct timezone *tz) |
20510f2f | 346 | { |
f25fce3e | 347 | return call_int_hook(settime, 0, ts, tz); |
20510f2f JM |
348 | } |
349 | ||
20510f2f JM |
350 | int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) |
351 | { | |
b1d9e6b0 CS |
352 | struct security_hook_list *hp; |
353 | int cap_sys_admin = 1; | |
354 | int rc; | |
355 | ||
356 | /* | |
357 | * The module will respond with a positive value if | |
358 | * it thinks the __vm_enough_memory() call should be | |
359 | * made with the cap_sys_admin set. If all of the modules | |
360 | * agree that it should be set it will. If any module | |
361 | * thinks it should not be set it won't. | |
362 | */ | |
df0ce173 | 363 | hlist_for_each_entry(hp, &security_hook_heads.vm_enough_memory, list) { |
b1d9e6b0 CS |
364 | rc = hp->hook.vm_enough_memory(mm, pages); |
365 | if (rc <= 0) { | |
366 | cap_sys_admin = 0; | |
367 | break; | |
368 | } | |
369 | } | |
370 | return __vm_enough_memory(mm, pages, cap_sys_admin); | |
20510f2f JM |
371 | } |
372 | ||
a6f76f23 | 373 | int security_bprm_set_creds(struct linux_binprm *bprm) |
20510f2f | 374 | { |
f25fce3e | 375 | return call_int_hook(bprm_set_creds, 0, bprm); |
20510f2f JM |
376 | } |
377 | ||
a6f76f23 | 378 | int security_bprm_check(struct linux_binprm *bprm) |
20510f2f | 379 | { |
6c21a7fb MZ |
380 | int ret; |
381 | ||
f25fce3e | 382 | ret = call_int_hook(bprm_check_security, 0, bprm); |
6c21a7fb MZ |
383 | if (ret) |
384 | return ret; | |
385 | return ima_bprm_check(bprm); | |
20510f2f JM |
386 | } |
387 | ||
a6f76f23 | 388 | void security_bprm_committing_creds(struct linux_binprm *bprm) |
20510f2f | 389 | { |
f25fce3e | 390 | call_void_hook(bprm_committing_creds, bprm); |
20510f2f JM |
391 | } |
392 | ||
a6f76f23 | 393 | void security_bprm_committed_creds(struct linux_binprm *bprm) |
20510f2f | 394 | { |
f25fce3e | 395 | call_void_hook(bprm_committed_creds, bprm); |
20510f2f JM |
396 | } |
397 | ||
20510f2f JM |
398 | int security_sb_alloc(struct super_block *sb) |
399 | { | |
f25fce3e | 400 | return call_int_hook(sb_alloc_security, 0, sb); |
20510f2f JM |
401 | } |
402 | ||
403 | void security_sb_free(struct super_block *sb) | |
404 | { | |
f25fce3e | 405 | call_void_hook(sb_free_security, sb); |
20510f2f JM |
406 | } |
407 | ||
204cc0cc | 408 | void security_free_mnt_opts(void **mnt_opts) |
20510f2f | 409 | { |
204cc0cc AV |
410 | if (!*mnt_opts) |
411 | return; | |
412 | call_void_hook(sb_free_mnt_opts, *mnt_opts); | |
413 | *mnt_opts = NULL; | |
20510f2f | 414 | } |
204cc0cc | 415 | EXPORT_SYMBOL(security_free_mnt_opts); |
20510f2f | 416 | |
204cc0cc | 417 | int security_sb_eat_lsm_opts(char *options, void **mnt_opts) |
ff36fe2c | 418 | { |
204cc0cc | 419 | return call_int_hook(sb_eat_lsm_opts, 0, options, mnt_opts); |
ff36fe2c | 420 | } |
f5c0c26d | 421 | EXPORT_SYMBOL(security_sb_eat_lsm_opts); |
ff36fe2c | 422 | |
c039bc3c | 423 | int security_sb_remount(struct super_block *sb, |
204cc0cc | 424 | void *mnt_opts) |
20510f2f | 425 | { |
204cc0cc | 426 | return call_int_hook(sb_remount, 0, sb, mnt_opts); |
ff36fe2c | 427 | } |
a65001e8 | 428 | EXPORT_SYMBOL(security_sb_remount); |
ff36fe2c | 429 | |
a10d7c22 | 430 | int security_sb_kern_mount(struct super_block *sb) |
20510f2f | 431 | { |
a10d7c22 | 432 | return call_int_hook(sb_kern_mount, 0, sb); |
20510f2f JM |
433 | } |
434 | ||
2069f457 EP |
435 | int security_sb_show_options(struct seq_file *m, struct super_block *sb) |
436 | { | |
f25fce3e | 437 | return call_int_hook(sb_show_options, 0, m, sb); |
2069f457 EP |
438 | } |
439 | ||
20510f2f JM |
440 | int security_sb_statfs(struct dentry *dentry) |
441 | { | |
f25fce3e | 442 | return call_int_hook(sb_statfs, 0, dentry); |
20510f2f JM |
443 | } |
444 | ||
8a04c43b | 445 | int security_sb_mount(const char *dev_name, const struct path *path, |
808d4e3c | 446 | const char *type, unsigned long flags, void *data) |
20510f2f | 447 | { |
f25fce3e | 448 | return call_int_hook(sb_mount, 0, dev_name, path, type, flags, data); |
20510f2f JM |
449 | } |
450 | ||
20510f2f JM |
451 | int security_sb_umount(struct vfsmount *mnt, int flags) |
452 | { | |
f25fce3e | 453 | return call_int_hook(sb_umount, 0, mnt, flags); |
20510f2f JM |
454 | } |
455 | ||
3b73b68c | 456 | int security_sb_pivotroot(const struct path *old_path, const struct path *new_path) |
20510f2f | 457 | { |
f25fce3e | 458 | return call_int_hook(sb_pivotroot, 0, old_path, new_path); |
20510f2f JM |
459 | } |
460 | ||
c9180a57 | 461 | int security_sb_set_mnt_opts(struct super_block *sb, |
204cc0cc | 462 | void *mnt_opts, |
649f6e77 DQ |
463 | unsigned long kern_flags, |
464 | unsigned long *set_kern_flags) | |
c9180a57 | 465 | { |
b1d9e6b0 | 466 | return call_int_hook(sb_set_mnt_opts, |
204cc0cc AV |
467 | mnt_opts ? -EOPNOTSUPP : 0, sb, |
468 | mnt_opts, kern_flags, set_kern_flags); | |
c9180a57 | 469 | } |
e0007529 | 470 | EXPORT_SYMBOL(security_sb_set_mnt_opts); |
c9180a57 | 471 | |
094f7b69 | 472 | int security_sb_clone_mnt_opts(const struct super_block *oldsb, |
0b4d3452 SM |
473 | struct super_block *newsb, |
474 | unsigned long kern_flags, | |
475 | unsigned long *set_kern_flags) | |
c9180a57 | 476 | { |
0b4d3452 SM |
477 | return call_int_hook(sb_clone_mnt_opts, 0, oldsb, newsb, |
478 | kern_flags, set_kern_flags); | |
c9180a57 | 479 | } |
e0007529 EP |
480 | EXPORT_SYMBOL(security_sb_clone_mnt_opts); |
481 | ||
757cbe59 AV |
482 | int security_add_mnt_opt(const char *option, const char *val, int len, |
483 | void **mnt_opts) | |
e0007529 | 484 | { |
757cbe59 AV |
485 | return call_int_hook(sb_add_mnt_opt, -EINVAL, |
486 | option, val, len, mnt_opts); | |
e0007529 | 487 | } |
757cbe59 | 488 | EXPORT_SYMBOL(security_add_mnt_opt); |
c9180a57 | 489 | |
20510f2f JM |
490 | int security_inode_alloc(struct inode *inode) |
491 | { | |
492 | inode->i_security = NULL; | |
f25fce3e | 493 | return call_int_hook(inode_alloc_security, 0, inode); |
20510f2f JM |
494 | } |
495 | ||
496 | void security_inode_free(struct inode *inode) | |
497 | { | |
f381c272 | 498 | integrity_inode_free(inode); |
f25fce3e | 499 | call_void_hook(inode_free_security, inode); |
20510f2f JM |
500 | } |
501 | ||
d47be3df | 502 | int security_dentry_init_security(struct dentry *dentry, int mode, |
4f3ccd76 | 503 | const struct qstr *name, void **ctx, |
d47be3df DQ |
504 | u32 *ctxlen) |
505 | { | |
b1d9e6b0 CS |
506 | return call_int_hook(dentry_init_security, -EOPNOTSUPP, dentry, mode, |
507 | name, ctx, ctxlen); | |
d47be3df DQ |
508 | } |
509 | EXPORT_SYMBOL(security_dentry_init_security); | |
510 | ||
2602625b VG |
511 | int security_dentry_create_files_as(struct dentry *dentry, int mode, |
512 | struct qstr *name, | |
513 | const struct cred *old, struct cred *new) | |
514 | { | |
515 | return call_int_hook(dentry_create_files_as, 0, dentry, mode, | |
516 | name, old, new); | |
517 | } | |
518 | EXPORT_SYMBOL(security_dentry_create_files_as); | |
519 | ||
20510f2f | 520 | int security_inode_init_security(struct inode *inode, struct inode *dir, |
9d8f13ba MZ |
521 | const struct qstr *qstr, |
522 | const initxattrs initxattrs, void *fs_data) | |
20510f2f | 523 | { |
823eb1cc MZ |
524 | struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1]; |
525 | struct xattr *lsm_xattr, *evm_xattr, *xattr; | |
9d8f13ba MZ |
526 | int ret; |
527 | ||
20510f2f | 528 | if (unlikely(IS_PRIVATE(inode))) |
fb88c2b6 | 529 | return 0; |
9d8f13ba | 530 | |
9d8f13ba | 531 | if (!initxattrs) |
e308fd3b JB |
532 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, |
533 | dir, qstr, NULL, NULL, NULL); | |
9548906b | 534 | memset(new_xattrs, 0, sizeof(new_xattrs)); |
9d8f13ba | 535 | lsm_xattr = new_xattrs; |
b1d9e6b0 | 536 | ret = call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, qstr, |
9d8f13ba MZ |
537 | &lsm_xattr->name, |
538 | &lsm_xattr->value, | |
539 | &lsm_xattr->value_len); | |
540 | if (ret) | |
541 | goto out; | |
823eb1cc MZ |
542 | |
543 | evm_xattr = lsm_xattr + 1; | |
544 | ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr); | |
545 | if (ret) | |
546 | goto out; | |
9d8f13ba MZ |
547 | ret = initxattrs(inode, new_xattrs, fs_data); |
548 | out: | |
9548906b | 549 | for (xattr = new_xattrs; xattr->value != NULL; xattr++) |
823eb1cc | 550 | kfree(xattr->value); |
9d8f13ba MZ |
551 | return (ret == -EOPNOTSUPP) ? 0 : ret; |
552 | } | |
553 | EXPORT_SYMBOL(security_inode_init_security); | |
554 | ||
555 | int security_old_inode_init_security(struct inode *inode, struct inode *dir, | |
9548906b | 556 | const struct qstr *qstr, const char **name, |
9d8f13ba | 557 | void **value, size_t *len) |
20510f2f JM |
558 | { |
559 | if (unlikely(IS_PRIVATE(inode))) | |
30e05324 | 560 | return -EOPNOTSUPP; |
e308fd3b JB |
561 | return call_int_hook(inode_init_security, -EOPNOTSUPP, inode, dir, |
562 | qstr, name, value, len); | |
20510f2f | 563 | } |
9d8f13ba | 564 | EXPORT_SYMBOL(security_old_inode_init_security); |
20510f2f | 565 | |
be6d3e56 | 566 | #ifdef CONFIG_SECURITY_PATH |
d3607752 | 567 | int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, |
be6d3e56 KT |
568 | unsigned int dev) |
569 | { | |
c6f493d6 | 570 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 571 | return 0; |
f25fce3e | 572 | return call_int_hook(path_mknod, 0, dir, dentry, mode, dev); |
be6d3e56 KT |
573 | } |
574 | EXPORT_SYMBOL(security_path_mknod); | |
575 | ||
d3607752 | 576 | int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode) |
be6d3e56 | 577 | { |
c6f493d6 | 578 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 579 | return 0; |
f25fce3e | 580 | return call_int_hook(path_mkdir, 0, dir, dentry, mode); |
be6d3e56 | 581 | } |
82140443 | 582 | EXPORT_SYMBOL(security_path_mkdir); |
be6d3e56 | 583 | |
989f74e0 | 584 | int security_path_rmdir(const struct path *dir, struct dentry *dentry) |
be6d3e56 | 585 | { |
c6f493d6 | 586 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 587 | return 0; |
f25fce3e | 588 | return call_int_hook(path_rmdir, 0, dir, dentry); |
be6d3e56 KT |
589 | } |
590 | ||
989f74e0 | 591 | int security_path_unlink(const struct path *dir, struct dentry *dentry) |
be6d3e56 | 592 | { |
c6f493d6 | 593 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 594 | return 0; |
f25fce3e | 595 | return call_int_hook(path_unlink, 0, dir, dentry); |
be6d3e56 | 596 | } |
82140443 | 597 | EXPORT_SYMBOL(security_path_unlink); |
be6d3e56 | 598 | |
d3607752 | 599 | int security_path_symlink(const struct path *dir, struct dentry *dentry, |
be6d3e56 KT |
600 | const char *old_name) |
601 | { | |
c6f493d6 | 602 | if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) |
be6d3e56 | 603 | return 0; |
f25fce3e | 604 | return call_int_hook(path_symlink, 0, dir, dentry, old_name); |
be6d3e56 KT |
605 | } |
606 | ||
3ccee46a | 607 | int security_path_link(struct dentry *old_dentry, const struct path *new_dir, |
be6d3e56 KT |
608 | struct dentry *new_dentry) |
609 | { | |
c6f493d6 | 610 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
be6d3e56 | 611 | return 0; |
f25fce3e | 612 | return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry); |
be6d3e56 KT |
613 | } |
614 | ||
3ccee46a AV |
615 | int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, |
616 | const struct path *new_dir, struct dentry *new_dentry, | |
0b3974eb | 617 | unsigned int flags) |
be6d3e56 | 618 | { |
c6f493d6 DH |
619 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
620 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
be6d3e56 | 621 | return 0; |
da1ce067 MS |
622 | |
623 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e CS |
624 | int err = call_int_hook(path_rename, 0, new_dir, new_dentry, |
625 | old_dir, old_dentry); | |
da1ce067 MS |
626 | if (err) |
627 | return err; | |
628 | } | |
629 | ||
f25fce3e CS |
630 | return call_int_hook(path_rename, 0, old_dir, old_dentry, new_dir, |
631 | new_dentry); | |
be6d3e56 | 632 | } |
82140443 | 633 | EXPORT_SYMBOL(security_path_rename); |
be6d3e56 | 634 | |
81f4c506 | 635 | int security_path_truncate(const struct path *path) |
be6d3e56 | 636 | { |
c6f493d6 | 637 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
be6d3e56 | 638 | return 0; |
f25fce3e | 639 | return call_int_hook(path_truncate, 0, path); |
be6d3e56 | 640 | } |
89eda068 | 641 | |
be01f9f2 | 642 | int security_path_chmod(const struct path *path, umode_t mode) |
89eda068 | 643 | { |
c6f493d6 | 644 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 645 | return 0; |
f25fce3e | 646 | return call_int_hook(path_chmod, 0, path, mode); |
89eda068 TH |
647 | } |
648 | ||
7fd25dac | 649 | int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) |
89eda068 | 650 | { |
c6f493d6 | 651 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
89eda068 | 652 | return 0; |
f25fce3e | 653 | return call_int_hook(path_chown, 0, path, uid, gid); |
89eda068 | 654 | } |
8b8efb44 | 655 | |
77b286c0 | 656 | int security_path_chroot(const struct path *path) |
8b8efb44 | 657 | { |
f25fce3e | 658 | return call_int_hook(path_chroot, 0, path); |
8b8efb44 | 659 | } |
be6d3e56 KT |
660 | #endif |
661 | ||
4acdaf27 | 662 | int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
663 | { |
664 | if (unlikely(IS_PRIVATE(dir))) | |
665 | return 0; | |
f25fce3e | 666 | return call_int_hook(inode_create, 0, dir, dentry, mode); |
20510f2f | 667 | } |
800a9647 | 668 | EXPORT_SYMBOL_GPL(security_inode_create); |
20510f2f JM |
669 | |
670 | int security_inode_link(struct dentry *old_dentry, struct inode *dir, | |
671 | struct dentry *new_dentry) | |
672 | { | |
c6f493d6 | 673 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) |
20510f2f | 674 | return 0; |
f25fce3e | 675 | return call_int_hook(inode_link, 0, old_dentry, dir, new_dentry); |
20510f2f JM |
676 | } |
677 | ||
678 | int security_inode_unlink(struct inode *dir, struct dentry *dentry) | |
679 | { | |
c6f493d6 | 680 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 681 | return 0; |
f25fce3e | 682 | return call_int_hook(inode_unlink, 0, dir, dentry); |
20510f2f JM |
683 | } |
684 | ||
685 | int security_inode_symlink(struct inode *dir, struct dentry *dentry, | |
686 | const char *old_name) | |
687 | { | |
688 | if (unlikely(IS_PRIVATE(dir))) | |
689 | return 0; | |
f25fce3e | 690 | return call_int_hook(inode_symlink, 0, dir, dentry, old_name); |
20510f2f JM |
691 | } |
692 | ||
18bb1db3 | 693 | int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) |
20510f2f JM |
694 | { |
695 | if (unlikely(IS_PRIVATE(dir))) | |
696 | return 0; | |
f25fce3e | 697 | return call_int_hook(inode_mkdir, 0, dir, dentry, mode); |
20510f2f | 698 | } |
800a9647 | 699 | EXPORT_SYMBOL_GPL(security_inode_mkdir); |
20510f2f JM |
700 | |
701 | int security_inode_rmdir(struct inode *dir, struct dentry *dentry) | |
702 | { | |
c6f493d6 | 703 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 704 | return 0; |
f25fce3e | 705 | return call_int_hook(inode_rmdir, 0, dir, dentry); |
20510f2f JM |
706 | } |
707 | ||
1a67aafb | 708 | int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) |
20510f2f JM |
709 | { |
710 | if (unlikely(IS_PRIVATE(dir))) | |
711 | return 0; | |
f25fce3e | 712 | return call_int_hook(inode_mknod, 0, dir, dentry, mode, dev); |
20510f2f JM |
713 | } |
714 | ||
715 | int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, | |
0b3974eb MS |
716 | struct inode *new_dir, struct dentry *new_dentry, |
717 | unsigned int flags) | |
20510f2f | 718 | { |
c6f493d6 DH |
719 | if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || |
720 | (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) | |
20510f2f | 721 | return 0; |
da1ce067 MS |
722 | |
723 | if (flags & RENAME_EXCHANGE) { | |
f25fce3e | 724 | int err = call_int_hook(inode_rename, 0, new_dir, new_dentry, |
da1ce067 MS |
725 | old_dir, old_dentry); |
726 | if (err) | |
727 | return err; | |
728 | } | |
729 | ||
f25fce3e | 730 | return call_int_hook(inode_rename, 0, old_dir, old_dentry, |
20510f2f JM |
731 | new_dir, new_dentry); |
732 | } | |
733 | ||
734 | int security_inode_readlink(struct dentry *dentry) | |
735 | { | |
c6f493d6 | 736 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 737 | return 0; |
f25fce3e | 738 | return call_int_hook(inode_readlink, 0, dentry); |
20510f2f JM |
739 | } |
740 | ||
bda0be7a N |
741 | int security_inode_follow_link(struct dentry *dentry, struct inode *inode, |
742 | bool rcu) | |
20510f2f | 743 | { |
bda0be7a | 744 | if (unlikely(IS_PRIVATE(inode))) |
20510f2f | 745 | return 0; |
e22619a2 | 746 | return call_int_hook(inode_follow_link, 0, dentry, inode, rcu); |
20510f2f JM |
747 | } |
748 | ||
b77b0646 | 749 | int security_inode_permission(struct inode *inode, int mask) |
20510f2f JM |
750 | { |
751 | if (unlikely(IS_PRIVATE(inode))) | |
752 | return 0; | |
f25fce3e | 753 | return call_int_hook(inode_permission, 0, inode, mask); |
20510f2f JM |
754 | } |
755 | ||
756 | int security_inode_setattr(struct dentry *dentry, struct iattr *attr) | |
757 | { | |
817b54aa MZ |
758 | int ret; |
759 | ||
c6f493d6 | 760 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 761 | return 0; |
f25fce3e | 762 | ret = call_int_hook(inode_setattr, 0, dentry, attr); |
817b54aa MZ |
763 | if (ret) |
764 | return ret; | |
765 | return evm_inode_setattr(dentry, attr); | |
20510f2f | 766 | } |
b1da47e2 | 767 | EXPORT_SYMBOL_GPL(security_inode_setattr); |
20510f2f | 768 | |
3f7036a0 | 769 | int security_inode_getattr(const struct path *path) |
20510f2f | 770 | { |
c6f493d6 | 771 | if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) |
20510f2f | 772 | return 0; |
f25fce3e | 773 | return call_int_hook(inode_getattr, 0, path); |
20510f2f JM |
774 | } |
775 | ||
8f0cfa52 DH |
776 | int security_inode_setxattr(struct dentry *dentry, const char *name, |
777 | const void *value, size_t size, int flags) | |
20510f2f | 778 | { |
3e1be52d MZ |
779 | int ret; |
780 | ||
c6f493d6 | 781 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 782 | return 0; |
b1d9e6b0 CS |
783 | /* |
784 | * SELinux and Smack integrate the cap call, | |
785 | * so assume that all LSMs supplying this call do so. | |
786 | */ | |
787 | ret = call_int_hook(inode_setxattr, 1, dentry, name, value, size, | |
f25fce3e | 788 | flags); |
b1d9e6b0 CS |
789 | |
790 | if (ret == 1) | |
791 | ret = cap_inode_setxattr(dentry, name, value, size, flags); | |
42c63330 MZ |
792 | if (ret) |
793 | return ret; | |
794 | ret = ima_inode_setxattr(dentry, name, value, size); | |
3e1be52d MZ |
795 | if (ret) |
796 | return ret; | |
797 | return evm_inode_setxattr(dentry, name, value, size); | |
20510f2f JM |
798 | } |
799 | ||
8f0cfa52 DH |
800 | void security_inode_post_setxattr(struct dentry *dentry, const char *name, |
801 | const void *value, size_t size, int flags) | |
20510f2f | 802 | { |
c6f493d6 | 803 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 804 | return; |
f25fce3e | 805 | call_void_hook(inode_post_setxattr, dentry, name, value, size, flags); |
3e1be52d | 806 | evm_inode_post_setxattr(dentry, name, value, size); |
20510f2f JM |
807 | } |
808 | ||
8f0cfa52 | 809 | int security_inode_getxattr(struct dentry *dentry, const char *name) |
20510f2f | 810 | { |
c6f493d6 | 811 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 812 | return 0; |
f25fce3e | 813 | return call_int_hook(inode_getxattr, 0, dentry, name); |
20510f2f JM |
814 | } |
815 | ||
816 | int security_inode_listxattr(struct dentry *dentry) | |
817 | { | |
c6f493d6 | 818 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 819 | return 0; |
f25fce3e | 820 | return call_int_hook(inode_listxattr, 0, dentry); |
20510f2f JM |
821 | } |
822 | ||
8f0cfa52 | 823 | int security_inode_removexattr(struct dentry *dentry, const char *name) |
20510f2f | 824 | { |
3e1be52d MZ |
825 | int ret; |
826 | ||
c6f493d6 | 827 | if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) |
20510f2f | 828 | return 0; |
b1d9e6b0 CS |
829 | /* |
830 | * SELinux and Smack integrate the cap call, | |
831 | * so assume that all LSMs supplying this call do so. | |
832 | */ | |
833 | ret = call_int_hook(inode_removexattr, 1, dentry, name); | |
834 | if (ret == 1) | |
835 | ret = cap_inode_removexattr(dentry, name); | |
42c63330 MZ |
836 | if (ret) |
837 | return ret; | |
838 | ret = ima_inode_removexattr(dentry, name); | |
3e1be52d MZ |
839 | if (ret) |
840 | return ret; | |
841 | return evm_inode_removexattr(dentry, name); | |
20510f2f JM |
842 | } |
843 | ||
b5376771 SH |
844 | int security_inode_need_killpriv(struct dentry *dentry) |
845 | { | |
f25fce3e | 846 | return call_int_hook(inode_need_killpriv, 0, dentry); |
b5376771 SH |
847 | } |
848 | ||
849 | int security_inode_killpriv(struct dentry *dentry) | |
850 | { | |
f25fce3e | 851 | return call_int_hook(inode_killpriv, 0, dentry); |
b5376771 SH |
852 | } |
853 | ||
ea861dfd | 854 | int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc) |
20510f2f | 855 | { |
2885c1e3 CS |
856 | struct security_hook_list *hp; |
857 | int rc; | |
858 | ||
20510f2f | 859 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 860 | return -EOPNOTSUPP; |
2885c1e3 CS |
861 | /* |
862 | * Only one module will provide an attribute with a given name. | |
863 | */ | |
df0ce173 | 864 | hlist_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) { |
2885c1e3 CS |
865 | rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc); |
866 | if (rc != -EOPNOTSUPP) | |
867 | return rc; | |
868 | } | |
869 | return -EOPNOTSUPP; | |
20510f2f JM |
870 | } |
871 | ||
872 | int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
873 | { | |
2885c1e3 CS |
874 | struct security_hook_list *hp; |
875 | int rc; | |
876 | ||
20510f2f | 877 | if (unlikely(IS_PRIVATE(inode))) |
8d952504 | 878 | return -EOPNOTSUPP; |
2885c1e3 CS |
879 | /* |
880 | * Only one module will provide an attribute with a given name. | |
881 | */ | |
df0ce173 | 882 | hlist_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) { |
2885c1e3 CS |
883 | rc = hp->hook.inode_setsecurity(inode, name, value, size, |
884 | flags); | |
885 | if (rc != -EOPNOTSUPP) | |
886 | return rc; | |
887 | } | |
888 | return -EOPNOTSUPP; | |
20510f2f JM |
889 | } |
890 | ||
891 | int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
892 | { | |
893 | if (unlikely(IS_PRIVATE(inode))) | |
894 | return 0; | |
f25fce3e | 895 | return call_int_hook(inode_listsecurity, 0, inode, buffer, buffer_size); |
20510f2f | 896 | } |
c9bccef6 | 897 | EXPORT_SYMBOL(security_inode_listsecurity); |
20510f2f | 898 | |
d6335d77 | 899 | void security_inode_getsecid(struct inode *inode, u32 *secid) |
8a076191 | 900 | { |
f25fce3e | 901 | call_void_hook(inode_getsecid, inode, secid); |
8a076191 AD |
902 | } |
903 | ||
d8ad8b49 VG |
904 | int security_inode_copy_up(struct dentry *src, struct cred **new) |
905 | { | |
906 | return call_int_hook(inode_copy_up, 0, src, new); | |
907 | } | |
908 | EXPORT_SYMBOL(security_inode_copy_up); | |
909 | ||
121ab822 VG |
910 | int security_inode_copy_up_xattr(const char *name) |
911 | { | |
912 | return call_int_hook(inode_copy_up_xattr, -EOPNOTSUPP, name); | |
913 | } | |
914 | EXPORT_SYMBOL(security_inode_copy_up_xattr); | |
915 | ||
20510f2f JM |
916 | int security_file_permission(struct file *file, int mask) |
917 | { | |
c4ec54b4 EP |
918 | int ret; |
919 | ||
f25fce3e | 920 | ret = call_int_hook(file_permission, 0, file, mask); |
c4ec54b4 EP |
921 | if (ret) |
922 | return ret; | |
923 | ||
924 | return fsnotify_perm(file, mask); | |
20510f2f JM |
925 | } |
926 | ||
927 | int security_file_alloc(struct file *file) | |
928 | { | |
f25fce3e | 929 | return call_int_hook(file_alloc_security, 0, file); |
20510f2f JM |
930 | } |
931 | ||
932 | void security_file_free(struct file *file) | |
933 | { | |
f25fce3e | 934 | call_void_hook(file_free_security, file); |
20510f2f JM |
935 | } |
936 | ||
937 | int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) | |
938 | { | |
f25fce3e | 939 | return call_int_hook(file_ioctl, 0, file, cmd, arg); |
20510f2f JM |
940 | } |
941 | ||
98de59bf | 942 | static inline unsigned long mmap_prot(struct file *file, unsigned long prot) |
20510f2f | 943 | { |
8b3ec681 | 944 | /* |
98de59bf AV |
945 | * Does we have PROT_READ and does the application expect |
946 | * it to imply PROT_EXEC? If not, nothing to talk about... | |
8b3ec681 | 947 | */ |
98de59bf AV |
948 | if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ) |
949 | return prot; | |
8b3ec681 | 950 | if (!(current->personality & READ_IMPLIES_EXEC)) |
98de59bf AV |
951 | return prot; |
952 | /* | |
953 | * if that's an anonymous mapping, let it. | |
954 | */ | |
955 | if (!file) | |
956 | return prot | PROT_EXEC; | |
957 | /* | |
958 | * ditto if it's not on noexec mount, except that on !MMU we need | |
b4caecd4 | 959 | * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case |
98de59bf | 960 | */ |
90f8572b | 961 | if (!path_noexec(&file->f_path)) { |
8b3ec681 | 962 | #ifndef CONFIG_MMU |
b4caecd4 CH |
963 | if (file->f_op->mmap_capabilities) { |
964 | unsigned caps = file->f_op->mmap_capabilities(file); | |
965 | if (!(caps & NOMMU_MAP_EXEC)) | |
966 | return prot; | |
967 | } | |
8b3ec681 | 968 | #endif |
98de59bf | 969 | return prot | PROT_EXEC; |
8b3ec681 | 970 | } |
98de59bf AV |
971 | /* anything on noexec mount won't get PROT_EXEC */ |
972 | return prot; | |
973 | } | |
974 | ||
975 | int security_mmap_file(struct file *file, unsigned long prot, | |
976 | unsigned long flags) | |
977 | { | |
978 | int ret; | |
f25fce3e | 979 | ret = call_int_hook(mmap_file, 0, file, prot, |
98de59bf | 980 | mmap_prot(file, prot), flags); |
6c21a7fb MZ |
981 | if (ret) |
982 | return ret; | |
983 | return ima_file_mmap(file, prot); | |
20510f2f JM |
984 | } |
985 | ||
e5467859 AV |
986 | int security_mmap_addr(unsigned long addr) |
987 | { | |
f25fce3e | 988 | return call_int_hook(mmap_addr, 0, addr); |
e5467859 AV |
989 | } |
990 | ||
20510f2f JM |
991 | int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, |
992 | unsigned long prot) | |
993 | { | |
f25fce3e | 994 | return call_int_hook(file_mprotect, 0, vma, reqprot, prot); |
20510f2f JM |
995 | } |
996 | ||
997 | int security_file_lock(struct file *file, unsigned int cmd) | |
998 | { | |
f25fce3e | 999 | return call_int_hook(file_lock, 0, file, cmd); |
20510f2f JM |
1000 | } |
1001 | ||
1002 | int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) | |
1003 | { | |
f25fce3e | 1004 | return call_int_hook(file_fcntl, 0, file, cmd, arg); |
20510f2f JM |
1005 | } |
1006 | ||
e0b93edd | 1007 | void security_file_set_fowner(struct file *file) |
20510f2f | 1008 | { |
f25fce3e | 1009 | call_void_hook(file_set_fowner, file); |
20510f2f JM |
1010 | } |
1011 | ||
1012 | int security_file_send_sigiotask(struct task_struct *tsk, | |
1013 | struct fown_struct *fown, int sig) | |
1014 | { | |
f25fce3e | 1015 | return call_int_hook(file_send_sigiotask, 0, tsk, fown, sig); |
20510f2f JM |
1016 | } |
1017 | ||
1018 | int security_file_receive(struct file *file) | |
1019 | { | |
f25fce3e | 1020 | return call_int_hook(file_receive, 0, file); |
20510f2f JM |
1021 | } |
1022 | ||
e3f20ae2 | 1023 | int security_file_open(struct file *file) |
20510f2f | 1024 | { |
c4ec54b4 EP |
1025 | int ret; |
1026 | ||
94817692 | 1027 | ret = call_int_hook(file_open, 0, file); |
c4ec54b4 EP |
1028 | if (ret) |
1029 | return ret; | |
1030 | ||
1031 | return fsnotify_perm(file, MAY_OPEN); | |
20510f2f JM |
1032 | } |
1033 | ||
e4e55b47 TH |
1034 | int security_task_alloc(struct task_struct *task, unsigned long clone_flags) |
1035 | { | |
1036 | return call_int_hook(task_alloc, 0, task, clone_flags); | |
1037 | } | |
1038 | ||
1a2a4d06 KC |
1039 | void security_task_free(struct task_struct *task) |
1040 | { | |
f25fce3e | 1041 | call_void_hook(task_free, task); |
1a2a4d06 KC |
1042 | } |
1043 | ||
ee18d64c DH |
1044 | int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) |
1045 | { | |
f25fce3e | 1046 | return call_int_hook(cred_alloc_blank, 0, cred, gfp); |
ee18d64c DH |
1047 | } |
1048 | ||
d84f4f99 | 1049 | void security_cred_free(struct cred *cred) |
20510f2f | 1050 | { |
f25fce3e | 1051 | call_void_hook(cred_free, cred); |
20510f2f JM |
1052 | } |
1053 | ||
d84f4f99 | 1054 | int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) |
20510f2f | 1055 | { |
f25fce3e | 1056 | return call_int_hook(cred_prepare, 0, new, old, gfp); |
d84f4f99 DH |
1057 | } |
1058 | ||
ee18d64c DH |
1059 | void security_transfer_creds(struct cred *new, const struct cred *old) |
1060 | { | |
f25fce3e | 1061 | call_void_hook(cred_transfer, new, old); |
ee18d64c DH |
1062 | } |
1063 | ||
3ec30113 MG |
1064 | void security_cred_getsecid(const struct cred *c, u32 *secid) |
1065 | { | |
1066 | *secid = 0; | |
1067 | call_void_hook(cred_getsecid, c, secid); | |
1068 | } | |
1069 | EXPORT_SYMBOL(security_cred_getsecid); | |
1070 | ||
3a3b7ce9 DH |
1071 | int security_kernel_act_as(struct cred *new, u32 secid) |
1072 | { | |
f25fce3e | 1073 | return call_int_hook(kernel_act_as, 0, new, secid); |
3a3b7ce9 DH |
1074 | } |
1075 | ||
1076 | int security_kernel_create_files_as(struct cred *new, struct inode *inode) | |
1077 | { | |
f25fce3e | 1078 | return call_int_hook(kernel_create_files_as, 0, new, inode); |
3a3b7ce9 DH |
1079 | } |
1080 | ||
dd8dbf2e | 1081 | int security_kernel_module_request(char *kmod_name) |
9188499c | 1082 | { |
6eb864c1 MK |
1083 | int ret; |
1084 | ||
1085 | ret = call_int_hook(kernel_module_request, 0, kmod_name); | |
1086 | if (ret) | |
1087 | return ret; | |
1088 | return integrity_kernel_module_request(kmod_name); | |
9188499c EP |
1089 | } |
1090 | ||
39eeb4fb MZ |
1091 | int security_kernel_read_file(struct file *file, enum kernel_read_file_id id) |
1092 | { | |
1093 | int ret; | |
1094 | ||
1095 | ret = call_int_hook(kernel_read_file, 0, file, id); | |
1096 | if (ret) | |
1097 | return ret; | |
1098 | return ima_read_file(file, id); | |
1099 | } | |
1100 | EXPORT_SYMBOL_GPL(security_kernel_read_file); | |
1101 | ||
bc8ca5b9 MZ |
1102 | int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, |
1103 | enum kernel_read_file_id id) | |
b44a7dfc | 1104 | { |
cf222217 MZ |
1105 | int ret; |
1106 | ||
1107 | ret = call_int_hook(kernel_post_read_file, 0, file, buf, size, id); | |
1108 | if (ret) | |
1109 | return ret; | |
1110 | return ima_post_read_file(file, buf, size, id); | |
b44a7dfc MZ |
1111 | } |
1112 | EXPORT_SYMBOL_GPL(security_kernel_post_read_file); | |
1113 | ||
377179cd MZ |
1114 | int security_kernel_load_data(enum kernel_load_data_id id) |
1115 | { | |
16c267aa MZ |
1116 | int ret; |
1117 | ||
1118 | ret = call_int_hook(kernel_load_data, 0, id); | |
1119 | if (ret) | |
1120 | return ret; | |
1121 | return ima_load_data(id); | |
377179cd | 1122 | } |
83a68a06 | 1123 | EXPORT_SYMBOL_GPL(security_kernel_load_data); |
377179cd | 1124 | |
d84f4f99 DH |
1125 | int security_task_fix_setuid(struct cred *new, const struct cred *old, |
1126 | int flags) | |
20510f2f | 1127 | { |
f25fce3e | 1128 | return call_int_hook(task_fix_setuid, 0, new, old, flags); |
20510f2f JM |
1129 | } |
1130 | ||
20510f2f JM |
1131 | int security_task_setpgid(struct task_struct *p, pid_t pgid) |
1132 | { | |
f25fce3e | 1133 | return call_int_hook(task_setpgid, 0, p, pgid); |
20510f2f JM |
1134 | } |
1135 | ||
1136 | int security_task_getpgid(struct task_struct *p) | |
1137 | { | |
f25fce3e | 1138 | return call_int_hook(task_getpgid, 0, p); |
20510f2f JM |
1139 | } |
1140 | ||
1141 | int security_task_getsid(struct task_struct *p) | |
1142 | { | |
f25fce3e | 1143 | return call_int_hook(task_getsid, 0, p); |
20510f2f JM |
1144 | } |
1145 | ||
1146 | void security_task_getsecid(struct task_struct *p, u32 *secid) | |
1147 | { | |
b1d9e6b0 | 1148 | *secid = 0; |
f25fce3e | 1149 | call_void_hook(task_getsecid, p, secid); |
20510f2f JM |
1150 | } |
1151 | EXPORT_SYMBOL(security_task_getsecid); | |
1152 | ||
20510f2f JM |
1153 | int security_task_setnice(struct task_struct *p, int nice) |
1154 | { | |
f25fce3e | 1155 | return call_int_hook(task_setnice, 0, p, nice); |
20510f2f JM |
1156 | } |
1157 | ||
1158 | int security_task_setioprio(struct task_struct *p, int ioprio) | |
1159 | { | |
f25fce3e | 1160 | return call_int_hook(task_setioprio, 0, p, ioprio); |
20510f2f JM |
1161 | } |
1162 | ||
1163 | int security_task_getioprio(struct task_struct *p) | |
1164 | { | |
f25fce3e | 1165 | return call_int_hook(task_getioprio, 0, p); |
20510f2f JM |
1166 | } |
1167 | ||
791ec491 SS |
1168 | int security_task_prlimit(const struct cred *cred, const struct cred *tcred, |
1169 | unsigned int flags) | |
1170 | { | |
1171 | return call_int_hook(task_prlimit, 0, cred, tcred, flags); | |
1172 | } | |
1173 | ||
8fd00b4d JS |
1174 | int security_task_setrlimit(struct task_struct *p, unsigned int resource, |
1175 | struct rlimit *new_rlim) | |
20510f2f | 1176 | { |
f25fce3e | 1177 | return call_int_hook(task_setrlimit, 0, p, resource, new_rlim); |
20510f2f JM |
1178 | } |
1179 | ||
b0ae1981 | 1180 | int security_task_setscheduler(struct task_struct *p) |
20510f2f | 1181 | { |
f25fce3e | 1182 | return call_int_hook(task_setscheduler, 0, p); |
20510f2f JM |
1183 | } |
1184 | ||
1185 | int security_task_getscheduler(struct task_struct *p) | |
1186 | { | |
f25fce3e | 1187 | return call_int_hook(task_getscheduler, 0, p); |
20510f2f JM |
1188 | } |
1189 | ||
1190 | int security_task_movememory(struct task_struct *p) | |
1191 | { | |
f25fce3e | 1192 | return call_int_hook(task_movememory, 0, p); |
20510f2f JM |
1193 | } |
1194 | ||
ae7795bc | 1195 | int security_task_kill(struct task_struct *p, struct kernel_siginfo *info, |
6b4f3d01 | 1196 | int sig, const struct cred *cred) |
20510f2f | 1197 | { |
6b4f3d01 | 1198 | return call_int_hook(task_kill, 0, p, info, sig, cred); |
20510f2f JM |
1199 | } |
1200 | ||
20510f2f | 1201 | int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, |
d84f4f99 | 1202 | unsigned long arg4, unsigned long arg5) |
20510f2f | 1203 | { |
b1d9e6b0 CS |
1204 | int thisrc; |
1205 | int rc = -ENOSYS; | |
1206 | struct security_hook_list *hp; | |
1207 | ||
df0ce173 | 1208 | hlist_for_each_entry(hp, &security_hook_heads.task_prctl, list) { |
b1d9e6b0 CS |
1209 | thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5); |
1210 | if (thisrc != -ENOSYS) { | |
1211 | rc = thisrc; | |
1212 | if (thisrc != 0) | |
1213 | break; | |
1214 | } | |
1215 | } | |
1216 | return rc; | |
20510f2f JM |
1217 | } |
1218 | ||
1219 | void security_task_to_inode(struct task_struct *p, struct inode *inode) | |
1220 | { | |
f25fce3e | 1221 | call_void_hook(task_to_inode, p, inode); |
20510f2f JM |
1222 | } |
1223 | ||
1224 | int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) | |
1225 | { | |
f25fce3e | 1226 | return call_int_hook(ipc_permission, 0, ipcp, flag); |
20510f2f JM |
1227 | } |
1228 | ||
8a076191 AD |
1229 | void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) |
1230 | { | |
b1d9e6b0 | 1231 | *secid = 0; |
f25fce3e | 1232 | call_void_hook(ipc_getsecid, ipcp, secid); |
8a076191 AD |
1233 | } |
1234 | ||
20510f2f JM |
1235 | int security_msg_msg_alloc(struct msg_msg *msg) |
1236 | { | |
f25fce3e | 1237 | return call_int_hook(msg_msg_alloc_security, 0, msg); |
20510f2f JM |
1238 | } |
1239 | ||
1240 | void security_msg_msg_free(struct msg_msg *msg) | |
1241 | { | |
f25fce3e | 1242 | call_void_hook(msg_msg_free_security, msg); |
20510f2f JM |
1243 | } |
1244 | ||
d8c6e854 | 1245 | int security_msg_queue_alloc(struct kern_ipc_perm *msq) |
20510f2f | 1246 | { |
f25fce3e | 1247 | return call_int_hook(msg_queue_alloc_security, 0, msq); |
20510f2f JM |
1248 | } |
1249 | ||
d8c6e854 | 1250 | void security_msg_queue_free(struct kern_ipc_perm *msq) |
20510f2f | 1251 | { |
f25fce3e | 1252 | call_void_hook(msg_queue_free_security, msq); |
20510f2f JM |
1253 | } |
1254 | ||
d8c6e854 | 1255 | int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg) |
20510f2f | 1256 | { |
f25fce3e | 1257 | return call_int_hook(msg_queue_associate, 0, msq, msqflg); |
20510f2f JM |
1258 | } |
1259 | ||
d8c6e854 | 1260 | int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd) |
20510f2f | 1261 | { |
f25fce3e | 1262 | return call_int_hook(msg_queue_msgctl, 0, msq, cmd); |
20510f2f JM |
1263 | } |
1264 | ||
d8c6e854 | 1265 | int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, |
20510f2f JM |
1266 | struct msg_msg *msg, int msqflg) |
1267 | { | |
f25fce3e | 1268 | return call_int_hook(msg_queue_msgsnd, 0, msq, msg, msqflg); |
20510f2f JM |
1269 | } |
1270 | ||
d8c6e854 | 1271 | int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, |
20510f2f JM |
1272 | struct task_struct *target, long type, int mode) |
1273 | { | |
f25fce3e | 1274 | return call_int_hook(msg_queue_msgrcv, 0, msq, msg, target, type, mode); |
20510f2f JM |
1275 | } |
1276 | ||
7191adff | 1277 | int security_shm_alloc(struct kern_ipc_perm *shp) |
20510f2f | 1278 | { |
f25fce3e | 1279 | return call_int_hook(shm_alloc_security, 0, shp); |
20510f2f JM |
1280 | } |
1281 | ||
7191adff | 1282 | void security_shm_free(struct kern_ipc_perm *shp) |
20510f2f | 1283 | { |
f25fce3e | 1284 | call_void_hook(shm_free_security, shp); |
20510f2f JM |
1285 | } |
1286 | ||
7191adff | 1287 | int security_shm_associate(struct kern_ipc_perm *shp, int shmflg) |
20510f2f | 1288 | { |
f25fce3e | 1289 | return call_int_hook(shm_associate, 0, shp, shmflg); |
20510f2f JM |
1290 | } |
1291 | ||
7191adff | 1292 | int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd) |
20510f2f | 1293 | { |
f25fce3e | 1294 | return call_int_hook(shm_shmctl, 0, shp, cmd); |
20510f2f JM |
1295 | } |
1296 | ||
7191adff | 1297 | int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg) |
20510f2f | 1298 | { |
f25fce3e | 1299 | return call_int_hook(shm_shmat, 0, shp, shmaddr, shmflg); |
20510f2f JM |
1300 | } |
1301 | ||
aefad959 | 1302 | int security_sem_alloc(struct kern_ipc_perm *sma) |
20510f2f | 1303 | { |
f25fce3e | 1304 | return call_int_hook(sem_alloc_security, 0, sma); |
20510f2f JM |
1305 | } |
1306 | ||
aefad959 | 1307 | void security_sem_free(struct kern_ipc_perm *sma) |
20510f2f | 1308 | { |
f25fce3e | 1309 | call_void_hook(sem_free_security, sma); |
20510f2f JM |
1310 | } |
1311 | ||
aefad959 | 1312 | int security_sem_associate(struct kern_ipc_perm *sma, int semflg) |
20510f2f | 1313 | { |
f25fce3e | 1314 | return call_int_hook(sem_associate, 0, sma, semflg); |
20510f2f JM |
1315 | } |
1316 | ||
aefad959 | 1317 | int security_sem_semctl(struct kern_ipc_perm *sma, int cmd) |
20510f2f | 1318 | { |
f25fce3e | 1319 | return call_int_hook(sem_semctl, 0, sma, cmd); |
20510f2f JM |
1320 | } |
1321 | ||
aefad959 | 1322 | int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, |
20510f2f JM |
1323 | unsigned nsops, int alter) |
1324 | { | |
f25fce3e | 1325 | return call_int_hook(sem_semop, 0, sma, sops, nsops, alter); |
20510f2f JM |
1326 | } |
1327 | ||
1328 | void security_d_instantiate(struct dentry *dentry, struct inode *inode) | |
1329 | { | |
1330 | if (unlikely(inode && IS_PRIVATE(inode))) | |
1331 | return; | |
f25fce3e | 1332 | call_void_hook(d_instantiate, dentry, inode); |
20510f2f JM |
1333 | } |
1334 | EXPORT_SYMBOL(security_d_instantiate); | |
1335 | ||
1336 | int security_getprocattr(struct task_struct *p, char *name, char **value) | |
1337 | { | |
b1d9e6b0 | 1338 | return call_int_hook(getprocattr, -EINVAL, p, name, value); |
20510f2f JM |
1339 | } |
1340 | ||
b21507e2 | 1341 | int security_setprocattr(const char *name, void *value, size_t size) |
20510f2f | 1342 | { |
b21507e2 | 1343 | return call_int_hook(setprocattr, -EINVAL, name, value, size); |
20510f2f JM |
1344 | } |
1345 | ||
1346 | int security_netlink_send(struct sock *sk, struct sk_buff *skb) | |
1347 | { | |
f25fce3e | 1348 | return call_int_hook(netlink_send, 0, sk, skb); |
20510f2f | 1349 | } |
20510f2f | 1350 | |
746df9b5 DQ |
1351 | int security_ismaclabel(const char *name) |
1352 | { | |
f25fce3e | 1353 | return call_int_hook(ismaclabel, 0, name); |
746df9b5 DQ |
1354 | } |
1355 | EXPORT_SYMBOL(security_ismaclabel); | |
1356 | ||
20510f2f JM |
1357 | int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) |
1358 | { | |
b1d9e6b0 CS |
1359 | return call_int_hook(secid_to_secctx, -EOPNOTSUPP, secid, secdata, |
1360 | seclen); | |
20510f2f JM |
1361 | } |
1362 | EXPORT_SYMBOL(security_secid_to_secctx); | |
1363 | ||
7bf570dc | 1364 | int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) |
63cb3449 | 1365 | { |
b1d9e6b0 | 1366 | *secid = 0; |
f25fce3e | 1367 | return call_int_hook(secctx_to_secid, 0, secdata, seclen, secid); |
63cb3449 DH |
1368 | } |
1369 | EXPORT_SYMBOL(security_secctx_to_secid); | |
1370 | ||
20510f2f JM |
1371 | void security_release_secctx(char *secdata, u32 seclen) |
1372 | { | |
f25fce3e | 1373 | call_void_hook(release_secctx, secdata, seclen); |
20510f2f JM |
1374 | } |
1375 | EXPORT_SYMBOL(security_release_secctx); | |
1376 | ||
6f3be9f5 AG |
1377 | void security_inode_invalidate_secctx(struct inode *inode) |
1378 | { | |
1379 | call_void_hook(inode_invalidate_secctx, inode); | |
1380 | } | |
1381 | EXPORT_SYMBOL(security_inode_invalidate_secctx); | |
1382 | ||
1ee65e37 DQ |
1383 | int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) |
1384 | { | |
f25fce3e | 1385 | return call_int_hook(inode_notifysecctx, 0, inode, ctx, ctxlen); |
1ee65e37 DQ |
1386 | } |
1387 | EXPORT_SYMBOL(security_inode_notifysecctx); | |
1388 | ||
1389 | int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) | |
1390 | { | |
f25fce3e | 1391 | return call_int_hook(inode_setsecctx, 0, dentry, ctx, ctxlen); |
1ee65e37 DQ |
1392 | } |
1393 | EXPORT_SYMBOL(security_inode_setsecctx); | |
1394 | ||
1395 | int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) | |
1396 | { | |
b1d9e6b0 | 1397 | return call_int_hook(inode_getsecctx, -EOPNOTSUPP, inode, ctx, ctxlen); |
1ee65e37 DQ |
1398 | } |
1399 | EXPORT_SYMBOL(security_inode_getsecctx); | |
1400 | ||
20510f2f JM |
1401 | #ifdef CONFIG_SECURITY_NETWORK |
1402 | ||
3610cda5 | 1403 | int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) |
20510f2f | 1404 | { |
f25fce3e | 1405 | return call_int_hook(unix_stream_connect, 0, sock, other, newsk); |
20510f2f JM |
1406 | } |
1407 | EXPORT_SYMBOL(security_unix_stream_connect); | |
1408 | ||
1409 | int security_unix_may_send(struct socket *sock, struct socket *other) | |
1410 | { | |
f25fce3e | 1411 | return call_int_hook(unix_may_send, 0, sock, other); |
20510f2f JM |
1412 | } |
1413 | EXPORT_SYMBOL(security_unix_may_send); | |
1414 | ||
1415 | int security_socket_create(int family, int type, int protocol, int kern) | |
1416 | { | |
f25fce3e | 1417 | return call_int_hook(socket_create, 0, family, type, protocol, kern); |
20510f2f JM |
1418 | } |
1419 | ||
1420 | int security_socket_post_create(struct socket *sock, int family, | |
1421 | int type, int protocol, int kern) | |
1422 | { | |
f25fce3e | 1423 | return call_int_hook(socket_post_create, 0, sock, family, type, |
20510f2f JM |
1424 | protocol, kern); |
1425 | } | |
1426 | ||
aae7cfcb DH |
1427 | int security_socket_socketpair(struct socket *socka, struct socket *sockb) |
1428 | { | |
1429 | return call_int_hook(socket_socketpair, 0, socka, sockb); | |
1430 | } | |
1431 | EXPORT_SYMBOL(security_socket_socketpair); | |
1432 | ||
20510f2f JM |
1433 | int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) |
1434 | { | |
f25fce3e | 1435 | return call_int_hook(socket_bind, 0, sock, address, addrlen); |
20510f2f JM |
1436 | } |
1437 | ||
1438 | int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) | |
1439 | { | |
f25fce3e | 1440 | return call_int_hook(socket_connect, 0, sock, address, addrlen); |
20510f2f JM |
1441 | } |
1442 | ||
1443 | int security_socket_listen(struct socket *sock, int backlog) | |
1444 | { | |
f25fce3e | 1445 | return call_int_hook(socket_listen, 0, sock, backlog); |
20510f2f JM |
1446 | } |
1447 | ||
1448 | int security_socket_accept(struct socket *sock, struct socket *newsock) | |
1449 | { | |
f25fce3e | 1450 | return call_int_hook(socket_accept, 0, sock, newsock); |
20510f2f JM |
1451 | } |
1452 | ||
20510f2f JM |
1453 | int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) |
1454 | { | |
f25fce3e | 1455 | return call_int_hook(socket_sendmsg, 0, sock, msg, size); |
20510f2f JM |
1456 | } |
1457 | ||
1458 | int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
1459 | int size, int flags) | |
1460 | { | |
f25fce3e | 1461 | return call_int_hook(socket_recvmsg, 0, sock, msg, size, flags); |
20510f2f JM |
1462 | } |
1463 | ||
1464 | int security_socket_getsockname(struct socket *sock) | |
1465 | { | |
f25fce3e | 1466 | return call_int_hook(socket_getsockname, 0, sock); |
20510f2f JM |
1467 | } |
1468 | ||
1469 | int security_socket_getpeername(struct socket *sock) | |
1470 | { | |
f25fce3e | 1471 | return call_int_hook(socket_getpeername, 0, sock); |
20510f2f JM |
1472 | } |
1473 | ||
1474 | int security_socket_getsockopt(struct socket *sock, int level, int optname) | |
1475 | { | |
f25fce3e | 1476 | return call_int_hook(socket_getsockopt, 0, sock, level, optname); |
20510f2f JM |
1477 | } |
1478 | ||
1479 | int security_socket_setsockopt(struct socket *sock, int level, int optname) | |
1480 | { | |
f25fce3e | 1481 | return call_int_hook(socket_setsockopt, 0, sock, level, optname); |
20510f2f JM |
1482 | } |
1483 | ||
1484 | int security_socket_shutdown(struct socket *sock, int how) | |
1485 | { | |
f25fce3e | 1486 | return call_int_hook(socket_shutdown, 0, sock, how); |
20510f2f JM |
1487 | } |
1488 | ||
1489 | int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) | |
1490 | { | |
f25fce3e | 1491 | return call_int_hook(socket_sock_rcv_skb, 0, sk, skb); |
20510f2f JM |
1492 | } |
1493 | EXPORT_SYMBOL(security_sock_rcv_skb); | |
1494 | ||
1495 | int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, | |
1496 | int __user *optlen, unsigned len) | |
1497 | { | |
b1d9e6b0 CS |
1498 | return call_int_hook(socket_getpeersec_stream, -ENOPROTOOPT, sock, |
1499 | optval, optlen, len); | |
20510f2f JM |
1500 | } |
1501 | ||
1502 | int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) | |
1503 | { | |
e308fd3b JB |
1504 | return call_int_hook(socket_getpeersec_dgram, -ENOPROTOOPT, sock, |
1505 | skb, secid); | |
20510f2f JM |
1506 | } |
1507 | EXPORT_SYMBOL(security_socket_getpeersec_dgram); | |
1508 | ||
1509 | int security_sk_alloc(struct sock *sk, int family, gfp_t priority) | |
1510 | { | |
f25fce3e | 1511 | return call_int_hook(sk_alloc_security, 0, sk, family, priority); |
20510f2f JM |
1512 | } |
1513 | ||
1514 | void security_sk_free(struct sock *sk) | |
1515 | { | |
f25fce3e | 1516 | call_void_hook(sk_free_security, sk); |
20510f2f JM |
1517 | } |
1518 | ||
1519 | void security_sk_clone(const struct sock *sk, struct sock *newsk) | |
1520 | { | |
f25fce3e | 1521 | call_void_hook(sk_clone_security, sk, newsk); |
20510f2f | 1522 | } |
6230c9b4 | 1523 | EXPORT_SYMBOL(security_sk_clone); |
20510f2f JM |
1524 | |
1525 | void security_sk_classify_flow(struct sock *sk, struct flowi *fl) | |
1526 | { | |
f25fce3e | 1527 | call_void_hook(sk_getsecid, sk, &fl->flowi_secid); |
20510f2f JM |
1528 | } |
1529 | EXPORT_SYMBOL(security_sk_classify_flow); | |
1530 | ||
1531 | void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) | |
1532 | { | |
f25fce3e | 1533 | call_void_hook(req_classify_flow, req, fl); |
20510f2f JM |
1534 | } |
1535 | EXPORT_SYMBOL(security_req_classify_flow); | |
1536 | ||
1537 | void security_sock_graft(struct sock *sk, struct socket *parent) | |
1538 | { | |
f25fce3e | 1539 | call_void_hook(sock_graft, sk, parent); |
20510f2f JM |
1540 | } |
1541 | EXPORT_SYMBOL(security_sock_graft); | |
1542 | ||
1543 | int security_inet_conn_request(struct sock *sk, | |
1544 | struct sk_buff *skb, struct request_sock *req) | |
1545 | { | |
f25fce3e | 1546 | return call_int_hook(inet_conn_request, 0, sk, skb, req); |
20510f2f JM |
1547 | } |
1548 | EXPORT_SYMBOL(security_inet_conn_request); | |
1549 | ||
1550 | void security_inet_csk_clone(struct sock *newsk, | |
1551 | const struct request_sock *req) | |
1552 | { | |
f25fce3e | 1553 | call_void_hook(inet_csk_clone, newsk, req); |
20510f2f JM |
1554 | } |
1555 | ||
1556 | void security_inet_conn_established(struct sock *sk, | |
1557 | struct sk_buff *skb) | |
1558 | { | |
f25fce3e | 1559 | call_void_hook(inet_conn_established, sk, skb); |
20510f2f | 1560 | } |
72e89f50 | 1561 | EXPORT_SYMBOL(security_inet_conn_established); |
20510f2f | 1562 | |
2606fd1f EP |
1563 | int security_secmark_relabel_packet(u32 secid) |
1564 | { | |
f25fce3e | 1565 | return call_int_hook(secmark_relabel_packet, 0, secid); |
2606fd1f EP |
1566 | } |
1567 | EXPORT_SYMBOL(security_secmark_relabel_packet); | |
1568 | ||
1569 | void security_secmark_refcount_inc(void) | |
1570 | { | |
f25fce3e | 1571 | call_void_hook(secmark_refcount_inc); |
2606fd1f EP |
1572 | } |
1573 | EXPORT_SYMBOL(security_secmark_refcount_inc); | |
1574 | ||
1575 | void security_secmark_refcount_dec(void) | |
1576 | { | |
f25fce3e | 1577 | call_void_hook(secmark_refcount_dec); |
2606fd1f EP |
1578 | } |
1579 | EXPORT_SYMBOL(security_secmark_refcount_dec); | |
1580 | ||
5dbbaf2d PM |
1581 | int security_tun_dev_alloc_security(void **security) |
1582 | { | |
f25fce3e | 1583 | return call_int_hook(tun_dev_alloc_security, 0, security); |
5dbbaf2d PM |
1584 | } |
1585 | EXPORT_SYMBOL(security_tun_dev_alloc_security); | |
1586 | ||
1587 | void security_tun_dev_free_security(void *security) | |
1588 | { | |
f25fce3e | 1589 | call_void_hook(tun_dev_free_security, security); |
5dbbaf2d PM |
1590 | } |
1591 | EXPORT_SYMBOL(security_tun_dev_free_security); | |
1592 | ||
2b980dbd PM |
1593 | int security_tun_dev_create(void) |
1594 | { | |
f25fce3e | 1595 | return call_int_hook(tun_dev_create, 0); |
2b980dbd PM |
1596 | } |
1597 | EXPORT_SYMBOL(security_tun_dev_create); | |
1598 | ||
5dbbaf2d | 1599 | int security_tun_dev_attach_queue(void *security) |
2b980dbd | 1600 | { |
f25fce3e | 1601 | return call_int_hook(tun_dev_attach_queue, 0, security); |
2b980dbd | 1602 | } |
5dbbaf2d | 1603 | EXPORT_SYMBOL(security_tun_dev_attach_queue); |
2b980dbd | 1604 | |
5dbbaf2d | 1605 | int security_tun_dev_attach(struct sock *sk, void *security) |
2b980dbd | 1606 | { |
f25fce3e | 1607 | return call_int_hook(tun_dev_attach, 0, sk, security); |
2b980dbd PM |
1608 | } |
1609 | EXPORT_SYMBOL(security_tun_dev_attach); | |
1610 | ||
5dbbaf2d PM |
1611 | int security_tun_dev_open(void *security) |
1612 | { | |
f25fce3e | 1613 | return call_int_hook(tun_dev_open, 0, security); |
5dbbaf2d PM |
1614 | } |
1615 | EXPORT_SYMBOL(security_tun_dev_open); | |
1616 | ||
72e89f50 RH |
1617 | int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb) |
1618 | { | |
1619 | return call_int_hook(sctp_assoc_request, 0, ep, skb); | |
1620 | } | |
1621 | EXPORT_SYMBOL(security_sctp_assoc_request); | |
1622 | ||
1623 | int security_sctp_bind_connect(struct sock *sk, int optname, | |
1624 | struct sockaddr *address, int addrlen) | |
1625 | { | |
1626 | return call_int_hook(sctp_bind_connect, 0, sk, optname, | |
1627 | address, addrlen); | |
1628 | } | |
1629 | EXPORT_SYMBOL(security_sctp_bind_connect); | |
1630 | ||
1631 | void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk, | |
1632 | struct sock *newsk) | |
1633 | { | |
1634 | call_void_hook(sctp_sk_clone, ep, sk, newsk); | |
1635 | } | |
1636 | EXPORT_SYMBOL(security_sctp_sk_clone); | |
1637 | ||
20510f2f JM |
1638 | #endif /* CONFIG_SECURITY_NETWORK */ |
1639 | ||
d291f1a6 DJ |
1640 | #ifdef CONFIG_SECURITY_INFINIBAND |
1641 | ||
1642 | int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) | |
1643 | { | |
1644 | return call_int_hook(ib_pkey_access, 0, sec, subnet_prefix, pkey); | |
1645 | } | |
1646 | EXPORT_SYMBOL(security_ib_pkey_access); | |
1647 | ||
47a2b338 DJ |
1648 | int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) |
1649 | { | |
1650 | return call_int_hook(ib_endport_manage_subnet, 0, sec, dev_name, port_num); | |
1651 | } | |
1652 | EXPORT_SYMBOL(security_ib_endport_manage_subnet); | |
1653 | ||
d291f1a6 DJ |
1654 | int security_ib_alloc_security(void **sec) |
1655 | { | |
1656 | return call_int_hook(ib_alloc_security, 0, sec); | |
1657 | } | |
1658 | EXPORT_SYMBOL(security_ib_alloc_security); | |
1659 | ||
1660 | void security_ib_free_security(void *sec) | |
1661 | { | |
1662 | call_void_hook(ib_free_security, sec); | |
1663 | } | |
1664 | EXPORT_SYMBOL(security_ib_free_security); | |
1665 | #endif /* CONFIG_SECURITY_INFINIBAND */ | |
1666 | ||
20510f2f JM |
1667 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
1668 | ||
52a4c640 NA |
1669 | int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, |
1670 | struct xfrm_user_sec_ctx *sec_ctx, | |
1671 | gfp_t gfp) | |
20510f2f | 1672 | { |
f25fce3e | 1673 | return call_int_hook(xfrm_policy_alloc_security, 0, ctxp, sec_ctx, gfp); |
20510f2f JM |
1674 | } |
1675 | EXPORT_SYMBOL(security_xfrm_policy_alloc); | |
1676 | ||
03e1ad7b PM |
1677 | int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, |
1678 | struct xfrm_sec_ctx **new_ctxp) | |
20510f2f | 1679 | { |
f25fce3e | 1680 | return call_int_hook(xfrm_policy_clone_security, 0, old_ctx, new_ctxp); |
20510f2f JM |
1681 | } |
1682 | ||
03e1ad7b | 1683 | void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) |
20510f2f | 1684 | { |
f25fce3e | 1685 | call_void_hook(xfrm_policy_free_security, ctx); |
20510f2f JM |
1686 | } |
1687 | EXPORT_SYMBOL(security_xfrm_policy_free); | |
1688 | ||
03e1ad7b | 1689 | int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) |
20510f2f | 1690 | { |
f25fce3e | 1691 | return call_int_hook(xfrm_policy_delete_security, 0, ctx); |
20510f2f JM |
1692 | } |
1693 | ||
2e5aa866 PM |
1694 | int security_xfrm_state_alloc(struct xfrm_state *x, |
1695 | struct xfrm_user_sec_ctx *sec_ctx) | |
20510f2f | 1696 | { |
f25fce3e | 1697 | return call_int_hook(xfrm_state_alloc, 0, x, sec_ctx); |
20510f2f JM |
1698 | } |
1699 | EXPORT_SYMBOL(security_xfrm_state_alloc); | |
1700 | ||
1701 | int security_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
1702 | struct xfrm_sec_ctx *polsec, u32 secid) | |
1703 | { | |
f25fce3e | 1704 | return call_int_hook(xfrm_state_alloc_acquire, 0, x, polsec, secid); |
20510f2f JM |
1705 | } |
1706 | ||
1707 | int security_xfrm_state_delete(struct xfrm_state *x) | |
1708 | { | |
f25fce3e | 1709 | return call_int_hook(xfrm_state_delete_security, 0, x); |
20510f2f JM |
1710 | } |
1711 | EXPORT_SYMBOL(security_xfrm_state_delete); | |
1712 | ||
1713 | void security_xfrm_state_free(struct xfrm_state *x) | |
1714 | { | |
f25fce3e | 1715 | call_void_hook(xfrm_state_free_security, x); |
20510f2f JM |
1716 | } |
1717 | ||
03e1ad7b | 1718 | int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) |
20510f2f | 1719 | { |
f25fce3e | 1720 | return call_int_hook(xfrm_policy_lookup, 0, ctx, fl_secid, dir); |
20510f2f JM |
1721 | } |
1722 | ||
1723 | int security_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
e33f7704 DM |
1724 | struct xfrm_policy *xp, |
1725 | const struct flowi *fl) | |
20510f2f | 1726 | { |
b1d9e6b0 CS |
1727 | struct security_hook_list *hp; |
1728 | int rc = 1; | |
1729 | ||
1730 | /* | |
1731 | * Since this function is expected to return 0 or 1, the judgment | |
1732 | * becomes difficult if multiple LSMs supply this call. Fortunately, | |
1733 | * we can use the first LSM's judgment because currently only SELinux | |
1734 | * supplies this call. | |
1735 | * | |
1736 | * For speed optimization, we explicitly break the loop rather than | |
1737 | * using the macro | |
1738 | */ | |
df0ce173 | 1739 | hlist_for_each_entry(hp, &security_hook_heads.xfrm_state_pol_flow_match, |
b1d9e6b0 CS |
1740 | list) { |
1741 | rc = hp->hook.xfrm_state_pol_flow_match(x, xp, fl); | |
1742 | break; | |
1743 | } | |
1744 | return rc; | |
20510f2f JM |
1745 | } |
1746 | ||
1747 | int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) | |
1748 | { | |
f25fce3e | 1749 | return call_int_hook(xfrm_decode_session, 0, skb, secid, 1); |
20510f2f JM |
1750 | } |
1751 | ||
1752 | void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) | |
1753 | { | |
f25fce3e CS |
1754 | int rc = call_int_hook(xfrm_decode_session, 0, skb, &fl->flowi_secid, |
1755 | 0); | |
20510f2f JM |
1756 | |
1757 | BUG_ON(rc); | |
1758 | } | |
1759 | EXPORT_SYMBOL(security_skb_classify_flow); | |
1760 | ||
1761 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ | |
1762 | ||
1763 | #ifdef CONFIG_KEYS | |
1764 | ||
d84f4f99 DH |
1765 | int security_key_alloc(struct key *key, const struct cred *cred, |
1766 | unsigned long flags) | |
20510f2f | 1767 | { |
f25fce3e | 1768 | return call_int_hook(key_alloc, 0, key, cred, flags); |
20510f2f JM |
1769 | } |
1770 | ||
1771 | void security_key_free(struct key *key) | |
1772 | { | |
f25fce3e | 1773 | call_void_hook(key_free, key); |
20510f2f JM |
1774 | } |
1775 | ||
1776 | int security_key_permission(key_ref_t key_ref, | |
f5895943 | 1777 | const struct cred *cred, unsigned perm) |
20510f2f | 1778 | { |
f25fce3e | 1779 | return call_int_hook(key_permission, 0, key_ref, cred, perm); |
20510f2f JM |
1780 | } |
1781 | ||
70a5bb72 DH |
1782 | int security_key_getsecurity(struct key *key, char **_buffer) |
1783 | { | |
b1d9e6b0 | 1784 | *_buffer = NULL; |
f25fce3e | 1785 | return call_int_hook(key_getsecurity, 0, key, _buffer); |
70a5bb72 DH |
1786 | } |
1787 | ||
20510f2f | 1788 | #endif /* CONFIG_KEYS */ |
03d37d25 AD |
1789 | |
1790 | #ifdef CONFIG_AUDIT | |
1791 | ||
1792 | int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) | |
1793 | { | |
f25fce3e | 1794 | return call_int_hook(audit_rule_init, 0, field, op, rulestr, lsmrule); |
03d37d25 AD |
1795 | } |
1796 | ||
1797 | int security_audit_rule_known(struct audit_krule *krule) | |
1798 | { | |
f25fce3e | 1799 | return call_int_hook(audit_rule_known, 0, krule); |
03d37d25 AD |
1800 | } |
1801 | ||
1802 | void security_audit_rule_free(void *lsmrule) | |
1803 | { | |
f25fce3e | 1804 | call_void_hook(audit_rule_free, lsmrule); |
03d37d25 AD |
1805 | } |
1806 | ||
1807 | int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
1808 | struct audit_context *actx) | |
1809 | { | |
f25fce3e CS |
1810 | return call_int_hook(audit_rule_match, 0, secid, field, op, lsmrule, |
1811 | actx); | |
03d37d25 | 1812 | } |
b1d9e6b0 | 1813 | #endif /* CONFIG_AUDIT */ |
afdb09c7 CF |
1814 | |
1815 | #ifdef CONFIG_BPF_SYSCALL | |
1816 | int security_bpf(int cmd, union bpf_attr *attr, unsigned int size) | |
1817 | { | |
1818 | return call_int_hook(bpf, 0, cmd, attr, size); | |
1819 | } | |
1820 | int security_bpf_map(struct bpf_map *map, fmode_t fmode) | |
1821 | { | |
1822 | return call_int_hook(bpf_map, 0, map, fmode); | |
1823 | } | |
1824 | int security_bpf_prog(struct bpf_prog *prog) | |
1825 | { | |
1826 | return call_int_hook(bpf_prog, 0, prog); | |
1827 | } | |
1828 | int security_bpf_map_alloc(struct bpf_map *map) | |
1829 | { | |
1830 | return call_int_hook(bpf_map_alloc_security, 0, map); | |
1831 | } | |
1832 | int security_bpf_prog_alloc(struct bpf_prog_aux *aux) | |
1833 | { | |
1834 | return call_int_hook(bpf_prog_alloc_security, 0, aux); | |
1835 | } | |
1836 | void security_bpf_map_free(struct bpf_map *map) | |
1837 | { | |
1838 | call_void_hook(bpf_map_free_security, map); | |
1839 | } | |
1840 | void security_bpf_prog_free(struct bpf_prog_aux *aux) | |
1841 | { | |
1842 | call_void_hook(bpf_prog_free_security, aux); | |
1843 | } | |
1844 | #endif /* CONFIG_BPF_SYSCALL */ |