1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Security plug functions
5 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
6 * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
7 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
8 * Copyright (C) 2016 Mellanox Technologies
11 #define pr_fmt(fmt) "LSM: " fmt
13 #include <linux/bpf.h>
14 #include <linux/capability.h>
15 #include <linux/dcache.h>
16 #include <linux/export.h>
17 #include <linux/init.h>
18 #include <linux/kernel.h>
19 #include <linux/lsm_hooks.h>
20 #include <linux/integrity.h>
21 #include <linux/ima.h>
22 #include <linux/evm.h>
23 #include <linux/fsnotify.h>
24 #include <linux/mman.h>
25 #include <linux/mount.h>
26 #include <linux/personality.h>
27 #include <linux/backing-dev.h>
28 #include <linux/string.h>
29 #include <linux/msg.h>
33 #define MAX_LSM_EVM_XATTR 2
35 /* How many LSMs were built into the kernel? */
36 #define LSM_COUNT (__end_lsm_info - __start_lsm_info)
37 #define EARLY_LSM_COUNT (__end_early_lsm_info - __start_early_lsm_info)
39 struct security_hook_heads security_hook_heads __lsm_ro_after_init
;
40 static BLOCKING_NOTIFIER_HEAD(blocking_lsm_notifier_chain
);
42 static struct kmem_cache
*lsm_file_cache
;
43 static struct kmem_cache
*lsm_inode_cache
;
46 static struct lsm_blob_sizes blob_sizes __lsm_ro_after_init
;
48 /* Boot-time LSM user choice */
49 static __initdata
const char *chosen_lsm_order
;
50 static __initdata
const char *chosen_major_lsm
;
52 static __initconst
const char * const builtin_lsm_order
= CONFIG_LSM
;
54 /* Ordered list of LSMs to initialize. */
55 static __initdata
struct lsm_info
**ordered_lsms
;
56 static __initdata
struct lsm_info
*exclusive
;
58 static __initdata
bool debug
;
59 #define init_debug(...) \
62 pr_info(__VA_ARGS__); \
65 static bool __init
is_enabled(struct lsm_info
*lsm
)
73 /* Mark an LSM's enabled flag. */
74 static int lsm_enabled_true __initdata
= 1;
75 static int lsm_enabled_false __initdata
= 0;
76 static void __init
set_enabled(struct lsm_info
*lsm
, bool enabled
)
79 * When an LSM hasn't configured an enable variable, we can use
80 * a hard-coded location for storing the default enabled state.
84 lsm
->enabled
= &lsm_enabled_true
;
86 lsm
->enabled
= &lsm_enabled_false
;
87 } else if (lsm
->enabled
== &lsm_enabled_true
) {
89 lsm
->enabled
= &lsm_enabled_false
;
90 } else if (lsm
->enabled
== &lsm_enabled_false
) {
92 lsm
->enabled
= &lsm_enabled_true
;
94 *lsm
->enabled
= enabled
;
98 /* Is an LSM already listed in the ordered LSMs list? */
99 static bool __init
exists_ordered_lsm(struct lsm_info
*lsm
)
101 struct lsm_info
**check
;
103 for (check
= ordered_lsms
; *check
; check
++)
110 /* Append an LSM to the list of ordered LSMs to initialize. */
111 static int last_lsm __initdata
;
112 static void __init
append_ordered_lsm(struct lsm_info
*lsm
, const char *from
)
114 /* Ignore duplicate selections. */
115 if (exists_ordered_lsm(lsm
))
118 if (WARN(last_lsm
== LSM_COUNT
, "%s: out of LSM slots!?\n", from
))
121 /* Enable this LSM, if it is not already set. */
123 lsm
->enabled
= &lsm_enabled_true
;
124 ordered_lsms
[last_lsm
++] = lsm
;
126 init_debug("%s ordering: %s (%sabled)\n", from
, lsm
->name
,
127 is_enabled(lsm
) ? "en" : "dis");
130 /* Is an LSM allowed to be initialized? */
131 static bool __init
lsm_allowed(struct lsm_info
*lsm
)
133 /* Skip if the LSM is disabled. */
134 if (!is_enabled(lsm
))
137 /* Not allowed if another exclusive LSM already initialized. */
138 if ((lsm
->flags
& LSM_FLAG_EXCLUSIVE
) && exclusive
) {
139 init_debug("exclusive disabled: %s\n", lsm
->name
);
146 static void __init
lsm_set_blob_size(int *need
, int *lbs
)
157 static void __init
lsm_set_blob_sizes(struct lsm_blob_sizes
*needed
)
162 lsm_set_blob_size(&needed
->lbs_cred
, &blob_sizes
.lbs_cred
);
163 lsm_set_blob_size(&needed
->lbs_file
, &blob_sizes
.lbs_file
);
165 * The inode blob gets an rcu_head in addition to
166 * what the modules might need.
168 if (needed
->lbs_inode
&& blob_sizes
.lbs_inode
== 0)
169 blob_sizes
.lbs_inode
= sizeof(struct rcu_head
);
170 lsm_set_blob_size(&needed
->lbs_inode
, &blob_sizes
.lbs_inode
);
171 lsm_set_blob_size(&needed
->lbs_ipc
, &blob_sizes
.lbs_ipc
);
172 lsm_set_blob_size(&needed
->lbs_msg_msg
, &blob_sizes
.lbs_msg_msg
);
173 lsm_set_blob_size(&needed
->lbs_sock
, &blob_sizes
.lbs_sock
);
174 lsm_set_blob_size(&needed
->lbs_task
, &blob_sizes
.lbs_task
);
177 /* Prepare LSM for initialization. */
178 static void __init
prepare_lsm(struct lsm_info
*lsm
)
180 int enabled
= lsm_allowed(lsm
);
182 /* Record enablement (to handle any following exclusive LSMs). */
183 set_enabled(lsm
, enabled
);
185 /* If enabled, do pre-initialization work. */
187 if ((lsm
->flags
& LSM_FLAG_EXCLUSIVE
) && !exclusive
) {
189 init_debug("exclusive chosen: %s\n", lsm
->name
);
192 lsm_set_blob_sizes(lsm
->blobs
);
196 /* Initialize a given LSM, if it is enabled. */
197 static void __init
initialize_lsm(struct lsm_info
*lsm
)
199 if (is_enabled(lsm
)) {
202 init_debug("initializing %s\n", lsm
->name
);
204 WARN(ret
, "%s failed to initialize: %d\n", lsm
->name
, ret
);
208 /* Populate ordered LSMs list from comma-separated LSM name list. */
209 static void __init
ordered_lsm_parse(const char *order
, const char *origin
)
211 struct lsm_info
*lsm
;
212 char *sep
, *name
, *next
;
214 /* LSM_ORDER_FIRST is always first. */
215 for (lsm
= __start_lsm_info
; lsm
< __end_lsm_info
; lsm
++) {
216 if (lsm
->order
== LSM_ORDER_FIRST
)
217 append_ordered_lsm(lsm
, "first");
220 /* Process "security=", if given. */
221 if (chosen_major_lsm
) {
222 struct lsm_info
*major
;
225 * To match the original "security=" behavior, this
226 * explicitly does NOT fallback to another Legacy Major
227 * if the selected one was separately disabled: disable
228 * all non-matching Legacy Major LSMs.
230 for (major
= __start_lsm_info
; major
< __end_lsm_info
;
232 if ((major
->flags
& LSM_FLAG_LEGACY_MAJOR
) &&
233 strcmp(major
->name
, chosen_major_lsm
) != 0) {
234 set_enabled(major
, false);
235 init_debug("security=%s disabled: %s\n",
236 chosen_major_lsm
, major
->name
);
241 sep
= kstrdup(order
, GFP_KERNEL
);
243 /* Walk the list, looking for matching LSMs. */
244 while ((name
= strsep(&next
, ",")) != NULL
) {
247 for (lsm
= __start_lsm_info
; lsm
< __end_lsm_info
; lsm
++) {
248 if (lsm
->order
== LSM_ORDER_MUTABLE
&&
249 strcmp(lsm
->name
, name
) == 0) {
250 append_ordered_lsm(lsm
, origin
);
256 init_debug("%s ignored: %s\n", origin
, name
);
259 /* Process "security=", if given. */
260 if (chosen_major_lsm
) {
261 for (lsm
= __start_lsm_info
; lsm
< __end_lsm_info
; lsm
++) {
262 if (exists_ordered_lsm(lsm
))
264 if (strcmp(lsm
->name
, chosen_major_lsm
) == 0)
265 append_ordered_lsm(lsm
, "security=");
269 /* Disable all LSMs not in the ordered list. */
270 for (lsm
= __start_lsm_info
; lsm
< __end_lsm_info
; lsm
++) {
271 if (exists_ordered_lsm(lsm
))
273 set_enabled(lsm
, false);
274 init_debug("%s disabled: %s\n", origin
, lsm
->name
);
280 static void __init
lsm_early_cred(struct cred
*cred
);
281 static void __init
lsm_early_task(struct task_struct
*task
);
283 static int lsm_append(const char *new, char **result
);
285 static void __init
ordered_lsm_init(void)
287 struct lsm_info
**lsm
;
289 ordered_lsms
= kcalloc(LSM_COUNT
+ 1, sizeof(*ordered_lsms
),
292 if (chosen_lsm_order
) {
293 if (chosen_major_lsm
) {
294 pr_info("security= is ignored because it is superseded by lsm=\n");
295 chosen_major_lsm
= NULL
;
297 ordered_lsm_parse(chosen_lsm_order
, "cmdline");
299 ordered_lsm_parse(builtin_lsm_order
, "builtin");
301 for (lsm
= ordered_lsms
; *lsm
; lsm
++)
304 init_debug("cred blob size = %d\n", blob_sizes
.lbs_cred
);
305 init_debug("file blob size = %d\n", blob_sizes
.lbs_file
);
306 init_debug("inode blob size = %d\n", blob_sizes
.lbs_inode
);
307 init_debug("ipc blob size = %d\n", blob_sizes
.lbs_ipc
);
308 init_debug("msg_msg blob size = %d\n", blob_sizes
.lbs_msg_msg
);
309 init_debug("sock blob size = %d\n", blob_sizes
.lbs_sock
);
310 init_debug("task blob size = %d\n", blob_sizes
.lbs_task
);
313 * Create any kmem_caches needed for blobs
315 if (blob_sizes
.lbs_file
)
316 lsm_file_cache
= kmem_cache_create("lsm_file_cache",
317 blob_sizes
.lbs_file
, 0,
319 if (blob_sizes
.lbs_inode
)
320 lsm_inode_cache
= kmem_cache_create("lsm_inode_cache",
321 blob_sizes
.lbs_inode
, 0,
324 lsm_early_cred((struct cred
*) current
->cred
);
325 lsm_early_task(current
);
326 for (lsm
= ordered_lsms
; *lsm
; lsm
++)
327 initialize_lsm(*lsm
);
332 int __init
early_security_init(void)
335 struct hlist_head
*list
= (struct hlist_head
*) &security_hook_heads
;
336 struct lsm_info
*lsm
;
338 for (i
= 0; i
< sizeof(security_hook_heads
) / sizeof(struct hlist_head
);
340 INIT_HLIST_HEAD(&list
[i
]);
342 for (lsm
= __start_early_lsm_info
; lsm
< __end_early_lsm_info
; lsm
++) {
344 lsm
->enabled
= &lsm_enabled_true
;
353 * security_init - initializes the security framework
355 * This should be called early in the kernel initialization sequence.
357 int __init
security_init(void)
359 struct lsm_info
*lsm
;
361 pr_info("Security Framework initializing\n");
364 * Append the names of the early LSM modules now that kmalloc() is
367 for (lsm
= __start_early_lsm_info
; lsm
< __end_early_lsm_info
; lsm
++) {
369 lsm_append(lsm
->name
, &lsm_names
);
372 /* Load LSMs in specified order. */
378 /* Save user chosen LSM */
379 static int __init
choose_major_lsm(char *str
)
381 chosen_major_lsm
= str
;
384 __setup("security=", choose_major_lsm
);
386 /* Explicitly choose LSM initialization order. */
387 static int __init
choose_lsm_order(char *str
)
389 chosen_lsm_order
= str
;
392 __setup("lsm=", choose_lsm_order
);
394 /* Enable LSM order debugging. */
395 static int __init
enable_debug(char *str
)
400 __setup("lsm.debug", enable_debug
);
402 static bool match_last_lsm(const char *list
, const char *lsm
)
406 if (WARN_ON(!list
|| !lsm
))
408 last
= strrchr(list
, ',');
410 /* Pass the comma, strcmp() will check for '\0' */
414 return !strcmp(last
, lsm
);
417 static int lsm_append(const char *new, char **result
)
421 if (*result
== NULL
) {
422 *result
= kstrdup(new, GFP_KERNEL
);
426 /* Check if it is the last registered name */
427 if (match_last_lsm(*result
, new))
429 cp
= kasprintf(GFP_KERNEL
, "%s,%s", *result
, new);
439 * security_add_hooks - Add a modules hooks to the hook lists.
440 * @hooks: the hooks to add
441 * @count: the number of hooks to add
442 * @lsm: the name of the security module
444 * Each LSM has to register its hooks with the infrastructure.
446 void __init
security_add_hooks(struct security_hook_list
*hooks
, int count
,
451 for (i
= 0; i
< count
; i
++) {
453 hlist_add_tail_rcu(&hooks
[i
].list
, hooks
[i
].head
);
457 * Don't try to append during early_security_init(), we'll come back
458 * and fix this up afterwards.
460 if (slab_is_available()) {
461 if (lsm_append(lsm
, &lsm_names
) < 0)
462 panic("%s - Cannot get early memory.\n", __func__
);
466 int call_blocking_lsm_notifier(enum lsm_event event
, void *data
)
468 return blocking_notifier_call_chain(&blocking_lsm_notifier_chain
,
471 EXPORT_SYMBOL(call_blocking_lsm_notifier
);
473 int register_blocking_lsm_notifier(struct notifier_block
*nb
)
475 return blocking_notifier_chain_register(&blocking_lsm_notifier_chain
,
478 EXPORT_SYMBOL(register_blocking_lsm_notifier
);
480 int unregister_blocking_lsm_notifier(struct notifier_block
*nb
)
482 return blocking_notifier_chain_unregister(&blocking_lsm_notifier_chain
,
485 EXPORT_SYMBOL(unregister_blocking_lsm_notifier
);
488 * lsm_cred_alloc - allocate a composite cred blob
489 * @cred: the cred that needs a blob
490 * @gfp: allocation type
492 * Allocate the cred blob for all the modules
494 * Returns 0, or -ENOMEM if memory can't be allocated.
496 static int lsm_cred_alloc(struct cred
*cred
, gfp_t gfp
)
498 if (blob_sizes
.lbs_cred
== 0) {
499 cred
->security
= NULL
;
503 cred
->security
= kzalloc(blob_sizes
.lbs_cred
, gfp
);
504 if (cred
->security
== NULL
)
510 * lsm_early_cred - during initialization allocate a composite cred blob
511 * @cred: the cred that needs a blob
513 * Allocate the cred blob for all the modules
515 static void __init
lsm_early_cred(struct cred
*cred
)
517 int rc
= lsm_cred_alloc(cred
, GFP_KERNEL
);
520 panic("%s: Early cred alloc failed.\n", __func__
);
524 * lsm_file_alloc - allocate a composite file blob
525 * @file: the file that needs a blob
527 * Allocate the file blob for all the modules
529 * Returns 0, or -ENOMEM if memory can't be allocated.
531 static int lsm_file_alloc(struct file
*file
)
533 if (!lsm_file_cache
) {
534 file
->f_security
= NULL
;
538 file
->f_security
= kmem_cache_zalloc(lsm_file_cache
, GFP_KERNEL
);
539 if (file
->f_security
== NULL
)
545 * lsm_inode_alloc - allocate a composite inode blob
546 * @inode: the inode that needs a blob
548 * Allocate the inode blob for all the modules
550 * Returns 0, or -ENOMEM if memory can't be allocated.
552 int lsm_inode_alloc(struct inode
*inode
)
554 if (!lsm_inode_cache
) {
555 inode
->i_security
= NULL
;
559 inode
->i_security
= kmem_cache_zalloc(lsm_inode_cache
, GFP_NOFS
);
560 if (inode
->i_security
== NULL
)
566 * lsm_task_alloc - allocate a composite task blob
567 * @task: the task that needs a blob
569 * Allocate the task blob for all the modules
571 * Returns 0, or -ENOMEM if memory can't be allocated.
573 static int lsm_task_alloc(struct task_struct
*task
)
575 if (blob_sizes
.lbs_task
== 0) {
576 task
->security
= NULL
;
580 task
->security
= kzalloc(blob_sizes
.lbs_task
, GFP_KERNEL
);
581 if (task
->security
== NULL
)
587 * lsm_ipc_alloc - allocate a composite ipc blob
588 * @kip: the ipc that needs a blob
590 * Allocate the ipc blob for all the modules
592 * Returns 0, or -ENOMEM if memory can't be allocated.
594 static int lsm_ipc_alloc(struct kern_ipc_perm
*kip
)
596 if (blob_sizes
.lbs_ipc
== 0) {
597 kip
->security
= NULL
;
601 kip
->security
= kzalloc(blob_sizes
.lbs_ipc
, GFP_KERNEL
);
602 if (kip
->security
== NULL
)
608 * lsm_msg_msg_alloc - allocate a composite msg_msg blob
609 * @mp: the msg_msg that needs a blob
611 * Allocate the ipc blob for all the modules
613 * Returns 0, or -ENOMEM if memory can't be allocated.
615 static int lsm_msg_msg_alloc(struct msg_msg
*mp
)
617 if (blob_sizes
.lbs_msg_msg
== 0) {
622 mp
->security
= kzalloc(blob_sizes
.lbs_msg_msg
, GFP_KERNEL
);
623 if (mp
->security
== NULL
)
629 * lsm_sock_alloc - allocate a composite sock blob
630 * @sock: the sock that needs a blob
631 * @priority: allocation mode
633 * Allocate the sock blob for all the modules
635 * Returns 0, or -ENOMEM if memory can't be allocated.
637 static int lsm_sock_alloc(struct sock
*sock
, gfp_t priority
)
639 if (blob_sizes
.lbs_sock
== 0) {
640 sock
->sk_security
= NULL
;
644 sock
->sk_security
= kzalloc(blob_sizes
.lbs_sock
, priority
);
645 if (sock
->sk_security
== NULL
)
651 * lsm_early_task - during initialization allocate a composite task blob
652 * @task: the task that needs a blob
654 * Allocate the task blob for all the modules
656 static void __init
lsm_early_task(struct task_struct
*task
)
658 int rc
= lsm_task_alloc(task
);
661 panic("%s: Early task alloc failed.\n", __func__
);
665 * Hook list operation macros.
668 * This is a hook that does not return a value.
671 * This is a hook that returns a value.
674 #define call_void_hook(FUNC, ...) \
676 struct security_hook_list *P; \
678 hlist_for_each_entry(P, &security_hook_heads.FUNC, list) \
679 P->hook.FUNC(__VA_ARGS__); \
682 #define call_int_hook(FUNC, IRC, ...) ({ \
685 struct security_hook_list *P; \
687 hlist_for_each_entry(P, &security_hook_heads.FUNC, list) { \
688 RC = P->hook.FUNC(__VA_ARGS__); \
696 /* Security operations */
698 int security_binder_set_context_mgr(struct task_struct
*mgr
)
700 return call_int_hook(binder_set_context_mgr
, 0, mgr
);
702 EXPORT_SYMBOL(security_binder_set_context_mgr
);
704 int security_binder_transaction(struct task_struct
*from
,
705 struct task_struct
*to
)
707 return call_int_hook(binder_transaction
, 0, from
, to
);
709 EXPORT_SYMBOL(security_binder_transaction
);
711 int security_binder_transfer_binder(struct task_struct
*from
,
712 struct task_struct
*to
)
714 return call_int_hook(binder_transfer_binder
, 0, from
, to
);
716 EXPORT_SYMBOL(security_binder_transfer_binder
);
718 int security_binder_transfer_file(struct task_struct
*from
,
719 struct task_struct
*to
, struct file
*file
)
721 return call_int_hook(binder_transfer_file
, 0, from
, to
, file
);
723 EXPORT_SYMBOL(security_binder_transfer_file
);
725 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
)
727 return call_int_hook(ptrace_access_check
, 0, child
, mode
);
730 int security_ptrace_traceme(struct task_struct
*parent
)
732 return call_int_hook(ptrace_traceme
, 0, parent
);
735 int security_capget(struct task_struct
*target
,
736 kernel_cap_t
*effective
,
737 kernel_cap_t
*inheritable
,
738 kernel_cap_t
*permitted
)
740 return call_int_hook(capget
, 0, target
,
741 effective
, inheritable
, permitted
);
744 int security_capset(struct cred
*new, const struct cred
*old
,
745 const kernel_cap_t
*effective
,
746 const kernel_cap_t
*inheritable
,
747 const kernel_cap_t
*permitted
)
749 return call_int_hook(capset
, 0, new, old
,
750 effective
, inheritable
, permitted
);
753 int security_capable(const struct cred
*cred
,
754 struct user_namespace
*ns
,
758 return call_int_hook(capable
, 0, cred
, ns
, cap
, opts
);
761 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
)
763 return call_int_hook(quotactl
, 0, cmds
, type
, id
, sb
);
766 int security_quota_on(struct dentry
*dentry
)
768 return call_int_hook(quota_on
, 0, dentry
);
771 int security_syslog(int type
)
773 return call_int_hook(syslog
, 0, type
);
776 int security_settime64(const struct timespec64
*ts
, const struct timezone
*tz
)
778 return call_int_hook(settime
, 0, ts
, tz
);
781 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
783 struct security_hook_list
*hp
;
784 int cap_sys_admin
= 1;
788 * The module will respond with a positive value if
789 * it thinks the __vm_enough_memory() call should be
790 * made with the cap_sys_admin set. If all of the modules
791 * agree that it should be set it will. If any module
792 * thinks it should not be set it won't.
794 hlist_for_each_entry(hp
, &security_hook_heads
.vm_enough_memory
, list
) {
795 rc
= hp
->hook
.vm_enough_memory(mm
, pages
);
801 return __vm_enough_memory(mm
, pages
, cap_sys_admin
);
804 int security_bprm_set_creds(struct linux_binprm
*bprm
)
806 return call_int_hook(bprm_set_creds
, 0, bprm
);
809 int security_bprm_check(struct linux_binprm
*bprm
)
813 ret
= call_int_hook(bprm_check_security
, 0, bprm
);
816 return ima_bprm_check(bprm
);
819 void security_bprm_committing_creds(struct linux_binprm
*bprm
)
821 call_void_hook(bprm_committing_creds
, bprm
);
824 void security_bprm_committed_creds(struct linux_binprm
*bprm
)
826 call_void_hook(bprm_committed_creds
, bprm
);
829 int security_fs_context_dup(struct fs_context
*fc
, struct fs_context
*src_fc
)
831 return call_int_hook(fs_context_dup
, 0, fc
, src_fc
);
834 int security_fs_context_parse_param(struct fs_context
*fc
, struct fs_parameter
*param
)
836 return call_int_hook(fs_context_parse_param
, -ENOPARAM
, fc
, param
);
839 int security_sb_alloc(struct super_block
*sb
)
841 return call_int_hook(sb_alloc_security
, 0, sb
);
844 void security_sb_free(struct super_block
*sb
)
846 call_void_hook(sb_free_security
, sb
);
849 void security_free_mnt_opts(void **mnt_opts
)
853 call_void_hook(sb_free_mnt_opts
, *mnt_opts
);
856 EXPORT_SYMBOL(security_free_mnt_opts
);
858 int security_sb_eat_lsm_opts(char *options
, void **mnt_opts
)
860 return call_int_hook(sb_eat_lsm_opts
, 0, options
, mnt_opts
);
862 EXPORT_SYMBOL(security_sb_eat_lsm_opts
);
864 int security_sb_remount(struct super_block
*sb
,
867 return call_int_hook(sb_remount
, 0, sb
, mnt_opts
);
869 EXPORT_SYMBOL(security_sb_remount
);
871 int security_sb_kern_mount(struct super_block
*sb
)
873 return call_int_hook(sb_kern_mount
, 0, sb
);
876 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
)
878 return call_int_hook(sb_show_options
, 0, m
, sb
);
881 int security_sb_statfs(struct dentry
*dentry
)
883 return call_int_hook(sb_statfs
, 0, dentry
);
886 int security_sb_mount(const char *dev_name
, const struct path
*path
,
887 const char *type
, unsigned long flags
, void *data
)
889 return call_int_hook(sb_mount
, 0, dev_name
, path
, type
, flags
, data
);
892 int security_sb_umount(struct vfsmount
*mnt
, int flags
)
894 return call_int_hook(sb_umount
, 0, mnt
, flags
);
897 int security_sb_pivotroot(const struct path
*old_path
, const struct path
*new_path
)
899 return call_int_hook(sb_pivotroot
, 0, old_path
, new_path
);
902 int security_sb_set_mnt_opts(struct super_block
*sb
,
904 unsigned long kern_flags
,
905 unsigned long *set_kern_flags
)
907 return call_int_hook(sb_set_mnt_opts
,
908 mnt_opts
? -EOPNOTSUPP
: 0, sb
,
909 mnt_opts
, kern_flags
, set_kern_flags
);
911 EXPORT_SYMBOL(security_sb_set_mnt_opts
);
913 int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
914 struct super_block
*newsb
,
915 unsigned long kern_flags
,
916 unsigned long *set_kern_flags
)
918 return call_int_hook(sb_clone_mnt_opts
, 0, oldsb
, newsb
,
919 kern_flags
, set_kern_flags
);
921 EXPORT_SYMBOL(security_sb_clone_mnt_opts
);
923 int security_add_mnt_opt(const char *option
, const char *val
, int len
,
926 return call_int_hook(sb_add_mnt_opt
, -EINVAL
,
927 option
, val
, len
, mnt_opts
);
929 EXPORT_SYMBOL(security_add_mnt_opt
);
931 int security_move_mount(const struct path
*from_path
, const struct path
*to_path
)
933 return call_int_hook(move_mount
, 0, from_path
, to_path
);
936 int security_path_notify(const struct path
*path
, u64 mask
,
937 unsigned int obj_type
)
939 return call_int_hook(path_notify
, 0, path
, mask
, obj_type
);
942 int security_inode_alloc(struct inode
*inode
)
944 int rc
= lsm_inode_alloc(inode
);
948 rc
= call_int_hook(inode_alloc_security
, 0, inode
);
950 security_inode_free(inode
);
954 static void inode_free_by_rcu(struct rcu_head
*head
)
957 * The rcu head is at the start of the inode blob
959 kmem_cache_free(lsm_inode_cache
, head
);
962 void security_inode_free(struct inode
*inode
)
964 integrity_inode_free(inode
);
965 call_void_hook(inode_free_security
, inode
);
967 * The inode may still be referenced in a path walk and
968 * a call to security_inode_permission() can be made
969 * after inode_free_security() is called. Ideally, the VFS
970 * wouldn't do this, but fixing that is a much harder
971 * job. For now, simply free the i_security via RCU, and
972 * leave the current inode->i_security pointer intact.
973 * The inode will be freed after the RCU grace period too.
975 if (inode
->i_security
)
976 call_rcu((struct rcu_head
*)inode
->i_security
,
980 int security_dentry_init_security(struct dentry
*dentry
, int mode
,
981 const struct qstr
*name
, void **ctx
,
984 return call_int_hook(dentry_init_security
, -EOPNOTSUPP
, dentry
, mode
,
987 EXPORT_SYMBOL(security_dentry_init_security
);
989 int security_dentry_create_files_as(struct dentry
*dentry
, int mode
,
991 const struct cred
*old
, struct cred
*new)
993 return call_int_hook(dentry_create_files_as
, 0, dentry
, mode
,
996 EXPORT_SYMBOL(security_dentry_create_files_as
);
998 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
999 const struct qstr
*qstr
,
1000 const initxattrs initxattrs
, void *fs_data
)
1002 struct xattr new_xattrs
[MAX_LSM_EVM_XATTR
+ 1];
1003 struct xattr
*lsm_xattr
, *evm_xattr
, *xattr
;
1006 if (unlikely(IS_PRIVATE(inode
)))
1010 return call_int_hook(inode_init_security
, -EOPNOTSUPP
, inode
,
1011 dir
, qstr
, NULL
, NULL
, NULL
);
1012 memset(new_xattrs
, 0, sizeof(new_xattrs
));
1013 lsm_xattr
= new_xattrs
;
1014 ret
= call_int_hook(inode_init_security
, -EOPNOTSUPP
, inode
, dir
, qstr
,
1017 &lsm_xattr
->value_len
);
1021 evm_xattr
= lsm_xattr
+ 1;
1022 ret
= evm_inode_init_security(inode
, lsm_xattr
, evm_xattr
);
1025 ret
= initxattrs(inode
, new_xattrs
, fs_data
);
1027 for (xattr
= new_xattrs
; xattr
->value
!= NULL
; xattr
++)
1028 kfree(xattr
->value
);
1029 return (ret
== -EOPNOTSUPP
) ? 0 : ret
;
1031 EXPORT_SYMBOL(security_inode_init_security
);
1033 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
1034 const struct qstr
*qstr
, const char **name
,
1035 void **value
, size_t *len
)
1037 if (unlikely(IS_PRIVATE(inode
)))
1039 return call_int_hook(inode_init_security
, -EOPNOTSUPP
, inode
, dir
,
1040 qstr
, name
, value
, len
);
1042 EXPORT_SYMBOL(security_old_inode_init_security
);
1044 #ifdef CONFIG_SECURITY_PATH
1045 int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
1048 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
1050 return call_int_hook(path_mknod
, 0, dir
, dentry
, mode
, dev
);
1052 EXPORT_SYMBOL(security_path_mknod
);
1054 int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
)
1056 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
1058 return call_int_hook(path_mkdir
, 0, dir
, dentry
, mode
);
1060 EXPORT_SYMBOL(security_path_mkdir
);
1062 int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
)
1064 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
1066 return call_int_hook(path_rmdir
, 0, dir
, dentry
);
1069 int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
)
1071 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
1073 return call_int_hook(path_unlink
, 0, dir
, dentry
);
1075 EXPORT_SYMBOL(security_path_unlink
);
1077 int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
1078 const char *old_name
)
1080 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
1082 return call_int_hook(path_symlink
, 0, dir
, dentry
, old_name
);
1085 int security_path_link(struct dentry
*old_dentry
, const struct path
*new_dir
,
1086 struct dentry
*new_dentry
)
1088 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry
))))
1090 return call_int_hook(path_link
, 0, old_dentry
, new_dir
, new_dentry
);
1093 int security_path_rename(const struct path
*old_dir
, struct dentry
*old_dentry
,
1094 const struct path
*new_dir
, struct dentry
*new_dentry
,
1097 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry
)) ||
1098 (d_is_positive(new_dentry
) && IS_PRIVATE(d_backing_inode(new_dentry
)))))
1101 if (flags
& RENAME_EXCHANGE
) {
1102 int err
= call_int_hook(path_rename
, 0, new_dir
, new_dentry
,
1103 old_dir
, old_dentry
);
1108 return call_int_hook(path_rename
, 0, old_dir
, old_dentry
, new_dir
,
1111 EXPORT_SYMBOL(security_path_rename
);
1113 int security_path_truncate(const struct path
*path
)
1115 if (unlikely(IS_PRIVATE(d_backing_inode(path
->dentry
))))
1117 return call_int_hook(path_truncate
, 0, path
);
1120 int security_path_chmod(const struct path
*path
, umode_t mode
)
1122 if (unlikely(IS_PRIVATE(d_backing_inode(path
->dentry
))))
1124 return call_int_hook(path_chmod
, 0, path
, mode
);
1127 int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
)
1129 if (unlikely(IS_PRIVATE(d_backing_inode(path
->dentry
))))
1131 return call_int_hook(path_chown
, 0, path
, uid
, gid
);
1134 int security_path_chroot(const struct path
*path
)
1136 return call_int_hook(path_chroot
, 0, path
);
1140 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
1142 if (unlikely(IS_PRIVATE(dir
)))
1144 return call_int_hook(inode_create
, 0, dir
, dentry
, mode
);
1146 EXPORT_SYMBOL_GPL(security_inode_create
);
1148 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
1149 struct dentry
*new_dentry
)
1151 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry
))))
1153 return call_int_hook(inode_link
, 0, old_dentry
, dir
, new_dentry
);
1156 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
)
1158 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
1160 return call_int_hook(inode_unlink
, 0, dir
, dentry
);
1163 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
1164 const char *old_name
)
1166 if (unlikely(IS_PRIVATE(dir
)))
1168 return call_int_hook(inode_symlink
, 0, dir
, dentry
, old_name
);
1171 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
1173 if (unlikely(IS_PRIVATE(dir
)))
1175 return call_int_hook(inode_mkdir
, 0, dir
, dentry
, mode
);
1177 EXPORT_SYMBOL_GPL(security_inode_mkdir
);
1179 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
)
1181 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
1183 return call_int_hook(inode_rmdir
, 0, dir
, dentry
);
1186 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
)
1188 if (unlikely(IS_PRIVATE(dir
)))
1190 return call_int_hook(inode_mknod
, 0, dir
, dentry
, mode
, dev
);
1193 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
1194 struct inode
*new_dir
, struct dentry
*new_dentry
,
1197 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry
)) ||
1198 (d_is_positive(new_dentry
) && IS_PRIVATE(d_backing_inode(new_dentry
)))))
1201 if (flags
& RENAME_EXCHANGE
) {
1202 int err
= call_int_hook(inode_rename
, 0, new_dir
, new_dentry
,
1203 old_dir
, old_dentry
);
1208 return call_int_hook(inode_rename
, 0, old_dir
, old_dentry
,
1209 new_dir
, new_dentry
);
1212 int security_inode_readlink(struct dentry
*dentry
)
1214 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
1216 return call_int_hook(inode_readlink
, 0, dentry
);
1219 int security_inode_follow_link(struct dentry
*dentry
, struct inode
*inode
,
1222 if (unlikely(IS_PRIVATE(inode
)))
1224 return call_int_hook(inode_follow_link
, 0, dentry
, inode
, rcu
);
1227 int security_inode_permission(struct inode
*inode
, int mask
)
1229 if (unlikely(IS_PRIVATE(inode
)))
1231 return call_int_hook(inode_permission
, 0, inode
, mask
);
1234 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
)
1238 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
1240 ret
= call_int_hook(inode_setattr
, 0, dentry
, attr
);
1243 return evm_inode_setattr(dentry
, attr
);
1245 EXPORT_SYMBOL_GPL(security_inode_setattr
);
1247 int security_inode_getattr(const struct path
*path
)
1249 if (unlikely(IS_PRIVATE(d_backing_inode(path
->dentry
))))
1251 return call_int_hook(inode_getattr
, 0, path
);
1254 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
1255 const void *value
, size_t size
, int flags
)
1259 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
1262 * SELinux and Smack integrate the cap call,
1263 * so assume that all LSMs supplying this call do so.
1265 ret
= call_int_hook(inode_setxattr
, 1, dentry
, name
, value
, size
,
1269 ret
= cap_inode_setxattr(dentry
, name
, value
, size
, flags
);
1272 ret
= ima_inode_setxattr(dentry
, name
, value
, size
);
1275 return evm_inode_setxattr(dentry
, name
, value
, size
);
1278 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
1279 const void *value
, size_t size
, int flags
)
1281 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
1283 call_void_hook(inode_post_setxattr
, dentry
, name
, value
, size
, flags
);
1284 evm_inode_post_setxattr(dentry
, name
, value
, size
);
1287 int security_inode_getxattr(struct dentry
*dentry
, const char *name
)
1289 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
1291 return call_int_hook(inode_getxattr
, 0, dentry
, name
);
1294 int security_inode_listxattr(struct dentry
*dentry
)
1296 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
1298 return call_int_hook(inode_listxattr
, 0, dentry
);
1301 int security_inode_removexattr(struct dentry
*dentry
, const char *name
)
1305 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
1308 * SELinux and Smack integrate the cap call,
1309 * so assume that all LSMs supplying this call do so.
1311 ret
= call_int_hook(inode_removexattr
, 1, dentry
, name
);
1313 ret
= cap_inode_removexattr(dentry
, name
);
1316 ret
= ima_inode_removexattr(dentry
, name
);
1319 return evm_inode_removexattr(dentry
, name
);
1322 int security_inode_need_killpriv(struct dentry
*dentry
)
1324 return call_int_hook(inode_need_killpriv
, 0, dentry
);
1327 int security_inode_killpriv(struct dentry
*dentry
)
1329 return call_int_hook(inode_killpriv
, 0, dentry
);
1332 int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
1334 struct security_hook_list
*hp
;
1337 if (unlikely(IS_PRIVATE(inode
)))
1340 * Only one module will provide an attribute with a given name.
1342 hlist_for_each_entry(hp
, &security_hook_heads
.inode_getsecurity
, list
) {
1343 rc
= hp
->hook
.inode_getsecurity(inode
, name
, buffer
, alloc
);
1344 if (rc
!= -EOPNOTSUPP
)
1350 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
1352 struct security_hook_list
*hp
;
1355 if (unlikely(IS_PRIVATE(inode
)))
1358 * Only one module will provide an attribute with a given name.
1360 hlist_for_each_entry(hp
, &security_hook_heads
.inode_setsecurity
, list
) {
1361 rc
= hp
->hook
.inode_setsecurity(inode
, name
, value
, size
,
1363 if (rc
!= -EOPNOTSUPP
)
1369 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
1371 if (unlikely(IS_PRIVATE(inode
)))
1373 return call_int_hook(inode_listsecurity
, 0, inode
, buffer
, buffer_size
);
1375 EXPORT_SYMBOL(security_inode_listsecurity
);
1377 void security_inode_getsecid(struct inode
*inode
, u32
*secid
)
1379 call_void_hook(inode_getsecid
, inode
, secid
);
1382 int security_inode_copy_up(struct dentry
*src
, struct cred
**new)
1384 return call_int_hook(inode_copy_up
, 0, src
, new);
1386 EXPORT_SYMBOL(security_inode_copy_up
);
1388 int security_inode_copy_up_xattr(const char *name
)
1390 return call_int_hook(inode_copy_up_xattr
, -EOPNOTSUPP
, name
);
1392 EXPORT_SYMBOL(security_inode_copy_up_xattr
);
1394 int security_kernfs_init_security(struct kernfs_node
*kn_dir
,
1395 struct kernfs_node
*kn
)
1397 return call_int_hook(kernfs_init_security
, 0, kn_dir
, kn
);
1400 int security_file_permission(struct file
*file
, int mask
)
1404 ret
= call_int_hook(file_permission
, 0, file
, mask
);
1408 return fsnotify_perm(file
, mask
);
1411 int security_file_alloc(struct file
*file
)
1413 int rc
= lsm_file_alloc(file
);
1417 rc
= call_int_hook(file_alloc_security
, 0, file
);
1419 security_file_free(file
);
1423 void security_file_free(struct file
*file
)
1427 call_void_hook(file_free_security
, file
);
1429 blob
= file
->f_security
;
1431 file
->f_security
= NULL
;
1432 kmem_cache_free(lsm_file_cache
, blob
);
1436 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
1438 return call_int_hook(file_ioctl
, 0, file
, cmd
, arg
);
1441 static inline unsigned long mmap_prot(struct file
*file
, unsigned long prot
)
1444 * Does we have PROT_READ and does the application expect
1445 * it to imply PROT_EXEC? If not, nothing to talk about...
1447 if ((prot
& (PROT_READ
| PROT_EXEC
)) != PROT_READ
)
1449 if (!(current
->personality
& READ_IMPLIES_EXEC
))
1452 * if that's an anonymous mapping, let it.
1455 return prot
| PROT_EXEC
;
1457 * ditto if it's not on noexec mount, except that on !MMU we need
1458 * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case
1460 if (!path_noexec(&file
->f_path
)) {
1462 if (file
->f_op
->mmap_capabilities
) {
1463 unsigned caps
= file
->f_op
->mmap_capabilities(file
);
1464 if (!(caps
& NOMMU_MAP_EXEC
))
1468 return prot
| PROT_EXEC
;
1470 /* anything on noexec mount won't get PROT_EXEC */
1474 int security_mmap_file(struct file
*file
, unsigned long prot
,
1475 unsigned long flags
)
1478 ret
= call_int_hook(mmap_file
, 0, file
, prot
,
1479 mmap_prot(file
, prot
), flags
);
1482 return ima_file_mmap(file
, prot
);
1485 int security_mmap_addr(unsigned long addr
)
1487 return call_int_hook(mmap_addr
, 0, addr
);
1490 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
1493 return call_int_hook(file_mprotect
, 0, vma
, reqprot
, prot
);
1496 int security_file_lock(struct file
*file
, unsigned int cmd
)
1498 return call_int_hook(file_lock
, 0, file
, cmd
);
1501 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
1503 return call_int_hook(file_fcntl
, 0, file
, cmd
, arg
);
1506 void security_file_set_fowner(struct file
*file
)
1508 call_void_hook(file_set_fowner
, file
);
1511 int security_file_send_sigiotask(struct task_struct
*tsk
,
1512 struct fown_struct
*fown
, int sig
)
1514 return call_int_hook(file_send_sigiotask
, 0, tsk
, fown
, sig
);
1517 int security_file_receive(struct file
*file
)
1519 return call_int_hook(file_receive
, 0, file
);
1522 int security_file_open(struct file
*file
)
1526 ret
= call_int_hook(file_open
, 0, file
);
1530 return fsnotify_perm(file
, MAY_OPEN
);
1533 int security_task_alloc(struct task_struct
*task
, unsigned long clone_flags
)
1535 int rc
= lsm_task_alloc(task
);
1539 rc
= call_int_hook(task_alloc
, 0, task
, clone_flags
);
1541 security_task_free(task
);
1545 void security_task_free(struct task_struct
*task
)
1547 call_void_hook(task_free
, task
);
1549 kfree(task
->security
);
1550 task
->security
= NULL
;
1553 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
1555 int rc
= lsm_cred_alloc(cred
, gfp
);
1560 rc
= call_int_hook(cred_alloc_blank
, 0, cred
, gfp
);
1562 security_cred_free(cred
);
1566 void security_cred_free(struct cred
*cred
)
1569 * There is a failure case in prepare_creds() that
1570 * may result in a call here with ->security being NULL.
1572 if (unlikely(cred
->security
== NULL
))
1575 call_void_hook(cred_free
, cred
);
1577 kfree(cred
->security
);
1578 cred
->security
= NULL
;
1581 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
)
1583 int rc
= lsm_cred_alloc(new, gfp
);
1588 rc
= call_int_hook(cred_prepare
, 0, new, old
, gfp
);
1590 security_cred_free(new);
1594 void security_transfer_creds(struct cred
*new, const struct cred
*old
)
1596 call_void_hook(cred_transfer
, new, old
);
1599 void security_cred_getsecid(const struct cred
*c
, u32
*secid
)
1602 call_void_hook(cred_getsecid
, c
, secid
);
1604 EXPORT_SYMBOL(security_cred_getsecid
);
1606 int security_kernel_act_as(struct cred
*new, u32 secid
)
1608 return call_int_hook(kernel_act_as
, 0, new, secid
);
1611 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
)
1613 return call_int_hook(kernel_create_files_as
, 0, new, inode
);
1616 int security_kernel_module_request(char *kmod_name
)
1620 ret
= call_int_hook(kernel_module_request
, 0, kmod_name
);
1623 return integrity_kernel_module_request(kmod_name
);
1626 int security_kernel_read_file(struct file
*file
, enum kernel_read_file_id id
)
1630 ret
= call_int_hook(kernel_read_file
, 0, file
, id
);
1633 return ima_read_file(file
, id
);
1635 EXPORT_SYMBOL_GPL(security_kernel_read_file
);
1637 int security_kernel_post_read_file(struct file
*file
, char *buf
, loff_t size
,
1638 enum kernel_read_file_id id
)
1642 ret
= call_int_hook(kernel_post_read_file
, 0, file
, buf
, size
, id
);
1645 return ima_post_read_file(file
, buf
, size
, id
);
1647 EXPORT_SYMBOL_GPL(security_kernel_post_read_file
);
1649 int security_kernel_load_data(enum kernel_load_data_id id
)
1653 ret
= call_int_hook(kernel_load_data
, 0, id
);
1656 return ima_load_data(id
);
1658 EXPORT_SYMBOL_GPL(security_kernel_load_data
);
1660 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
1663 return call_int_hook(task_fix_setuid
, 0, new, old
, flags
);
1666 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
1668 return call_int_hook(task_setpgid
, 0, p
, pgid
);
1671 int security_task_getpgid(struct task_struct
*p
)
1673 return call_int_hook(task_getpgid
, 0, p
);
1676 int security_task_getsid(struct task_struct
*p
)
1678 return call_int_hook(task_getsid
, 0, p
);
1681 void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
1684 call_void_hook(task_getsecid
, p
, secid
);
1686 EXPORT_SYMBOL(security_task_getsecid
);
1688 int security_task_setnice(struct task_struct
*p
, int nice
)
1690 return call_int_hook(task_setnice
, 0, p
, nice
);
1693 int security_task_setioprio(struct task_struct
*p
, int ioprio
)
1695 return call_int_hook(task_setioprio
, 0, p
, ioprio
);
1698 int security_task_getioprio(struct task_struct
*p
)
1700 return call_int_hook(task_getioprio
, 0, p
);
1703 int security_task_prlimit(const struct cred
*cred
, const struct cred
*tcred
,
1706 return call_int_hook(task_prlimit
, 0, cred
, tcred
, flags
);
1709 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
1710 struct rlimit
*new_rlim
)
1712 return call_int_hook(task_setrlimit
, 0, p
, resource
, new_rlim
);
1715 int security_task_setscheduler(struct task_struct
*p
)
1717 return call_int_hook(task_setscheduler
, 0, p
);
1720 int security_task_getscheduler(struct task_struct
*p
)
1722 return call_int_hook(task_getscheduler
, 0, p
);
1725 int security_task_movememory(struct task_struct
*p
)
1727 return call_int_hook(task_movememory
, 0, p
);
1730 int security_task_kill(struct task_struct
*p
, struct kernel_siginfo
*info
,
1731 int sig
, const struct cred
*cred
)
1733 return call_int_hook(task_kill
, 0, p
, info
, sig
, cred
);
1736 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
1737 unsigned long arg4
, unsigned long arg5
)
1741 struct security_hook_list
*hp
;
1743 hlist_for_each_entry(hp
, &security_hook_heads
.task_prctl
, list
) {
1744 thisrc
= hp
->hook
.task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
1745 if (thisrc
!= -ENOSYS
) {
1754 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
1756 call_void_hook(task_to_inode
, p
, inode
);
1759 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
)
1761 return call_int_hook(ipc_permission
, 0, ipcp
, flag
);
1764 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
1767 call_void_hook(ipc_getsecid
, ipcp
, secid
);
1770 int security_msg_msg_alloc(struct msg_msg
*msg
)
1772 int rc
= lsm_msg_msg_alloc(msg
);
1776 rc
= call_int_hook(msg_msg_alloc_security
, 0, msg
);
1778 security_msg_msg_free(msg
);
1782 void security_msg_msg_free(struct msg_msg
*msg
)
1784 call_void_hook(msg_msg_free_security
, msg
);
1785 kfree(msg
->security
);
1786 msg
->security
= NULL
;
1789 int security_msg_queue_alloc(struct kern_ipc_perm
*msq
)
1791 int rc
= lsm_ipc_alloc(msq
);
1795 rc
= call_int_hook(msg_queue_alloc_security
, 0, msq
);
1797 security_msg_queue_free(msq
);
1801 void security_msg_queue_free(struct kern_ipc_perm
*msq
)
1803 call_void_hook(msg_queue_free_security
, msq
);
1804 kfree(msq
->security
);
1805 msq
->security
= NULL
;
1808 int security_msg_queue_associate(struct kern_ipc_perm
*msq
, int msqflg
)
1810 return call_int_hook(msg_queue_associate
, 0, msq
, msqflg
);
1813 int security_msg_queue_msgctl(struct kern_ipc_perm
*msq
, int cmd
)
1815 return call_int_hook(msg_queue_msgctl
, 0, msq
, cmd
);
1818 int security_msg_queue_msgsnd(struct kern_ipc_perm
*msq
,
1819 struct msg_msg
*msg
, int msqflg
)
1821 return call_int_hook(msg_queue_msgsnd
, 0, msq
, msg
, msqflg
);
1824 int security_msg_queue_msgrcv(struct kern_ipc_perm
*msq
, struct msg_msg
*msg
,
1825 struct task_struct
*target
, long type
, int mode
)
1827 return call_int_hook(msg_queue_msgrcv
, 0, msq
, msg
, target
, type
, mode
);
1830 int security_shm_alloc(struct kern_ipc_perm
*shp
)
1832 int rc
= lsm_ipc_alloc(shp
);
1836 rc
= call_int_hook(shm_alloc_security
, 0, shp
);
1838 security_shm_free(shp
);
1842 void security_shm_free(struct kern_ipc_perm
*shp
)
1844 call_void_hook(shm_free_security
, shp
);
1845 kfree(shp
->security
);
1846 shp
->security
= NULL
;
1849 int security_shm_associate(struct kern_ipc_perm
*shp
, int shmflg
)
1851 return call_int_hook(shm_associate
, 0, shp
, shmflg
);
1854 int security_shm_shmctl(struct kern_ipc_perm
*shp
, int cmd
)
1856 return call_int_hook(shm_shmctl
, 0, shp
, cmd
);
1859 int security_shm_shmat(struct kern_ipc_perm
*shp
, char __user
*shmaddr
, int shmflg
)
1861 return call_int_hook(shm_shmat
, 0, shp
, shmaddr
, shmflg
);
1864 int security_sem_alloc(struct kern_ipc_perm
*sma
)
1866 int rc
= lsm_ipc_alloc(sma
);
1870 rc
= call_int_hook(sem_alloc_security
, 0, sma
);
1872 security_sem_free(sma
);
1876 void security_sem_free(struct kern_ipc_perm
*sma
)
1878 call_void_hook(sem_free_security
, sma
);
1879 kfree(sma
->security
);
1880 sma
->security
= NULL
;
1883 int security_sem_associate(struct kern_ipc_perm
*sma
, int semflg
)
1885 return call_int_hook(sem_associate
, 0, sma
, semflg
);
1888 int security_sem_semctl(struct kern_ipc_perm
*sma
, int cmd
)
1890 return call_int_hook(sem_semctl
, 0, sma
, cmd
);
1893 int security_sem_semop(struct kern_ipc_perm
*sma
, struct sembuf
*sops
,
1894 unsigned nsops
, int alter
)
1896 return call_int_hook(sem_semop
, 0, sma
, sops
, nsops
, alter
);
1899 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1901 if (unlikely(inode
&& IS_PRIVATE(inode
)))
1903 call_void_hook(d_instantiate
, dentry
, inode
);
1905 EXPORT_SYMBOL(security_d_instantiate
);
1907 int security_getprocattr(struct task_struct
*p
, const char *lsm
, char *name
,
1910 struct security_hook_list
*hp
;
1912 hlist_for_each_entry(hp
, &security_hook_heads
.getprocattr
, list
) {
1913 if (lsm
!= NULL
&& strcmp(lsm
, hp
->lsm
))
1915 return hp
->hook
.getprocattr(p
, name
, value
);
1920 int security_setprocattr(const char *lsm
, const char *name
, void *value
,
1923 struct security_hook_list
*hp
;
1925 hlist_for_each_entry(hp
, &security_hook_heads
.setprocattr
, list
) {
1926 if (lsm
!= NULL
&& strcmp(lsm
, hp
->lsm
))
1928 return hp
->hook
.setprocattr(name
, value
, size
);
1933 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1935 return call_int_hook(netlink_send
, 0, sk
, skb
);
1938 int security_ismaclabel(const char *name
)
1940 return call_int_hook(ismaclabel
, 0, name
);
1942 EXPORT_SYMBOL(security_ismaclabel
);
1944 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1946 return call_int_hook(secid_to_secctx
, -EOPNOTSUPP
, secid
, secdata
,
1949 EXPORT_SYMBOL(security_secid_to_secctx
);
1951 int security_secctx_to_secid(const char *secdata
, u32 seclen
, u32
*secid
)
1954 return call_int_hook(secctx_to_secid
, 0, secdata
, seclen
, secid
);
1956 EXPORT_SYMBOL(security_secctx_to_secid
);
1958 void security_release_secctx(char *secdata
, u32 seclen
)
1960 call_void_hook(release_secctx
, secdata
, seclen
);
1962 EXPORT_SYMBOL(security_release_secctx
);
1964 void security_inode_invalidate_secctx(struct inode
*inode
)
1966 call_void_hook(inode_invalidate_secctx
, inode
);
1968 EXPORT_SYMBOL(security_inode_invalidate_secctx
);
1970 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1972 return call_int_hook(inode_notifysecctx
, 0, inode
, ctx
, ctxlen
);
1974 EXPORT_SYMBOL(security_inode_notifysecctx
);
1976 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1978 return call_int_hook(inode_setsecctx
, 0, dentry
, ctx
, ctxlen
);
1980 EXPORT_SYMBOL(security_inode_setsecctx
);
1982 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1984 return call_int_hook(inode_getsecctx
, -EOPNOTSUPP
, inode
, ctx
, ctxlen
);
1986 EXPORT_SYMBOL(security_inode_getsecctx
);
1988 #ifdef CONFIG_SECURITY_NETWORK
1990 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
)
1992 return call_int_hook(unix_stream_connect
, 0, sock
, other
, newsk
);
1994 EXPORT_SYMBOL(security_unix_stream_connect
);
1996 int security_unix_may_send(struct socket
*sock
, struct socket
*other
)
1998 return call_int_hook(unix_may_send
, 0, sock
, other
);
2000 EXPORT_SYMBOL(security_unix_may_send
);
2002 int security_socket_create(int family
, int type
, int protocol
, int kern
)
2004 return call_int_hook(socket_create
, 0, family
, type
, protocol
, kern
);
2007 int security_socket_post_create(struct socket
*sock
, int family
,
2008 int type
, int protocol
, int kern
)
2010 return call_int_hook(socket_post_create
, 0, sock
, family
, type
,
2014 int security_socket_socketpair(struct socket
*socka
, struct socket
*sockb
)
2016 return call_int_hook(socket_socketpair
, 0, socka
, sockb
);
2018 EXPORT_SYMBOL(security_socket_socketpair
);
2020 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
)
2022 return call_int_hook(socket_bind
, 0, sock
, address
, addrlen
);
2025 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
)
2027 return call_int_hook(socket_connect
, 0, sock
, address
, addrlen
);
2030 int security_socket_listen(struct socket
*sock
, int backlog
)
2032 return call_int_hook(socket_listen
, 0, sock
, backlog
);
2035 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
)
2037 return call_int_hook(socket_accept
, 0, sock
, newsock
);
2040 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
)
2042 return call_int_hook(socket_sendmsg
, 0, sock
, msg
, size
);
2045 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
2046 int size
, int flags
)
2048 return call_int_hook(socket_recvmsg
, 0, sock
, msg
, size
, flags
);
2051 int security_socket_getsockname(struct socket
*sock
)
2053 return call_int_hook(socket_getsockname
, 0, sock
);
2056 int security_socket_getpeername(struct socket
*sock
)
2058 return call_int_hook(socket_getpeername
, 0, sock
);
2061 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
)
2063 return call_int_hook(socket_getsockopt
, 0, sock
, level
, optname
);
2066 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
)
2068 return call_int_hook(socket_setsockopt
, 0, sock
, level
, optname
);
2071 int security_socket_shutdown(struct socket
*sock
, int how
)
2073 return call_int_hook(socket_shutdown
, 0, sock
, how
);
2076 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
)
2078 return call_int_hook(socket_sock_rcv_skb
, 0, sk
, skb
);
2080 EXPORT_SYMBOL(security_sock_rcv_skb
);
2082 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
2083 int __user
*optlen
, unsigned len
)
2085 return call_int_hook(socket_getpeersec_stream
, -ENOPROTOOPT
, sock
,
2086 optval
, optlen
, len
);
2089 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
2091 return call_int_hook(socket_getpeersec_dgram
, -ENOPROTOOPT
, sock
,
2094 EXPORT_SYMBOL(security_socket_getpeersec_dgram
);
2096 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
2098 int rc
= lsm_sock_alloc(sk
, priority
);
2102 rc
= call_int_hook(sk_alloc_security
, 0, sk
, family
, priority
);
2104 security_sk_free(sk
);
2108 void security_sk_free(struct sock
*sk
)
2110 call_void_hook(sk_free_security
, sk
);
2111 kfree(sk
->sk_security
);
2112 sk
->sk_security
= NULL
;
2115 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
2117 call_void_hook(sk_clone_security
, sk
, newsk
);
2119 EXPORT_SYMBOL(security_sk_clone
);
2121 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
2123 call_void_hook(sk_getsecid
, sk
, &fl
->flowi_secid
);
2125 EXPORT_SYMBOL(security_sk_classify_flow
);
2127 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
2129 call_void_hook(req_classify_flow
, req
, fl
);
2131 EXPORT_SYMBOL(security_req_classify_flow
);
2133 void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
2135 call_void_hook(sock_graft
, sk
, parent
);
2137 EXPORT_SYMBOL(security_sock_graft
);
2139 int security_inet_conn_request(struct sock
*sk
,
2140 struct sk_buff
*skb
, struct request_sock
*req
)
2142 return call_int_hook(inet_conn_request
, 0, sk
, skb
, req
);
2144 EXPORT_SYMBOL(security_inet_conn_request
);
2146 void security_inet_csk_clone(struct sock
*newsk
,
2147 const struct request_sock
*req
)
2149 call_void_hook(inet_csk_clone
, newsk
, req
);
2152 void security_inet_conn_established(struct sock
*sk
,
2153 struct sk_buff
*skb
)
2155 call_void_hook(inet_conn_established
, sk
, skb
);
2157 EXPORT_SYMBOL(security_inet_conn_established
);
2159 int security_secmark_relabel_packet(u32 secid
)
2161 return call_int_hook(secmark_relabel_packet
, 0, secid
);
2163 EXPORT_SYMBOL(security_secmark_relabel_packet
);
2165 void security_secmark_refcount_inc(void)
2167 call_void_hook(secmark_refcount_inc
);
2169 EXPORT_SYMBOL(security_secmark_refcount_inc
);
2171 void security_secmark_refcount_dec(void)
2173 call_void_hook(secmark_refcount_dec
);
2175 EXPORT_SYMBOL(security_secmark_refcount_dec
);
2177 int security_tun_dev_alloc_security(void **security
)
2179 return call_int_hook(tun_dev_alloc_security
, 0, security
);
2181 EXPORT_SYMBOL(security_tun_dev_alloc_security
);
2183 void security_tun_dev_free_security(void *security
)
2185 call_void_hook(tun_dev_free_security
, security
);
2187 EXPORT_SYMBOL(security_tun_dev_free_security
);
2189 int security_tun_dev_create(void)
2191 return call_int_hook(tun_dev_create
, 0);
2193 EXPORT_SYMBOL(security_tun_dev_create
);
2195 int security_tun_dev_attach_queue(void *security
)
2197 return call_int_hook(tun_dev_attach_queue
, 0, security
);
2199 EXPORT_SYMBOL(security_tun_dev_attach_queue
);
2201 int security_tun_dev_attach(struct sock
*sk
, void *security
)
2203 return call_int_hook(tun_dev_attach
, 0, sk
, security
);
2205 EXPORT_SYMBOL(security_tun_dev_attach
);
2207 int security_tun_dev_open(void *security
)
2209 return call_int_hook(tun_dev_open
, 0, security
);
2211 EXPORT_SYMBOL(security_tun_dev_open
);
2213 int security_sctp_assoc_request(struct sctp_endpoint
*ep
, struct sk_buff
*skb
)
2215 return call_int_hook(sctp_assoc_request
, 0, ep
, skb
);
2217 EXPORT_SYMBOL(security_sctp_assoc_request
);
2219 int security_sctp_bind_connect(struct sock
*sk
, int optname
,
2220 struct sockaddr
*address
, int addrlen
)
2222 return call_int_hook(sctp_bind_connect
, 0, sk
, optname
,
2225 EXPORT_SYMBOL(security_sctp_bind_connect
);
2227 void security_sctp_sk_clone(struct sctp_endpoint
*ep
, struct sock
*sk
,
2230 call_void_hook(sctp_sk_clone
, ep
, sk
, newsk
);
2232 EXPORT_SYMBOL(security_sctp_sk_clone
);
2234 #endif /* CONFIG_SECURITY_NETWORK */
2236 #ifdef CONFIG_SECURITY_INFINIBAND
2238 int security_ib_pkey_access(void *sec
, u64 subnet_prefix
, u16 pkey
)
2240 return call_int_hook(ib_pkey_access
, 0, sec
, subnet_prefix
, pkey
);
2242 EXPORT_SYMBOL(security_ib_pkey_access
);
2244 int security_ib_endport_manage_subnet(void *sec
, const char *dev_name
, u8 port_num
)
2246 return call_int_hook(ib_endport_manage_subnet
, 0, sec
, dev_name
, port_num
);
2248 EXPORT_SYMBOL(security_ib_endport_manage_subnet
);
2250 int security_ib_alloc_security(void **sec
)
2252 return call_int_hook(ib_alloc_security
, 0, sec
);
2254 EXPORT_SYMBOL(security_ib_alloc_security
);
2256 void security_ib_free_security(void *sec
)
2258 call_void_hook(ib_free_security
, sec
);
2260 EXPORT_SYMBOL(security_ib_free_security
);
2261 #endif /* CONFIG_SECURITY_INFINIBAND */
2263 #ifdef CONFIG_SECURITY_NETWORK_XFRM
2265 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
2266 struct xfrm_user_sec_ctx
*sec_ctx
,
2269 return call_int_hook(xfrm_policy_alloc_security
, 0, ctxp
, sec_ctx
, gfp
);
2271 EXPORT_SYMBOL(security_xfrm_policy_alloc
);
2273 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
,
2274 struct xfrm_sec_ctx
**new_ctxp
)
2276 return call_int_hook(xfrm_policy_clone_security
, 0, old_ctx
, new_ctxp
);
2279 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
2281 call_void_hook(xfrm_policy_free_security
, ctx
);
2283 EXPORT_SYMBOL(security_xfrm_policy_free
);
2285 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
2287 return call_int_hook(xfrm_policy_delete_security
, 0, ctx
);
2290 int security_xfrm_state_alloc(struct xfrm_state
*x
,
2291 struct xfrm_user_sec_ctx
*sec_ctx
)
2293 return call_int_hook(xfrm_state_alloc
, 0, x
, sec_ctx
);
2295 EXPORT_SYMBOL(security_xfrm_state_alloc
);
2297 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
2298 struct xfrm_sec_ctx
*polsec
, u32 secid
)
2300 return call_int_hook(xfrm_state_alloc_acquire
, 0, x
, polsec
, secid
);
2303 int security_xfrm_state_delete(struct xfrm_state
*x
)
2305 return call_int_hook(xfrm_state_delete_security
, 0, x
);
2307 EXPORT_SYMBOL(security_xfrm_state_delete
);
2309 void security_xfrm_state_free(struct xfrm_state
*x
)
2311 call_void_hook(xfrm_state_free_security
, x
);
2314 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
2316 return call_int_hook(xfrm_policy_lookup
, 0, ctx
, fl_secid
, dir
);
2319 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
2320 struct xfrm_policy
*xp
,
2321 const struct flowi
*fl
)
2323 struct security_hook_list
*hp
;
2327 * Since this function is expected to return 0 or 1, the judgment
2328 * becomes difficult if multiple LSMs supply this call. Fortunately,
2329 * we can use the first LSM's judgment because currently only SELinux
2330 * supplies this call.
2332 * For speed optimization, we explicitly break the loop rather than
2335 hlist_for_each_entry(hp
, &security_hook_heads
.xfrm_state_pol_flow_match
,
2337 rc
= hp
->hook
.xfrm_state_pol_flow_match(x
, xp
, fl
);
2343 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
2345 return call_int_hook(xfrm_decode_session
, 0, skb
, secid
, 1);
2348 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
2350 int rc
= call_int_hook(xfrm_decode_session
, 0, skb
, &fl
->flowi_secid
,
2355 EXPORT_SYMBOL(security_skb_classify_flow
);
2357 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
2361 int security_key_alloc(struct key
*key
, const struct cred
*cred
,
2362 unsigned long flags
)
2364 return call_int_hook(key_alloc
, 0, key
, cred
, flags
);
2367 void security_key_free(struct key
*key
)
2369 call_void_hook(key_free
, key
);
2372 int security_key_permission(key_ref_t key_ref
,
2373 const struct cred
*cred
, unsigned perm
)
2375 return call_int_hook(key_permission
, 0, key_ref
, cred
, perm
);
2378 int security_key_getsecurity(struct key
*key
, char **_buffer
)
2381 return call_int_hook(key_getsecurity
, 0, key
, _buffer
);
2384 #endif /* CONFIG_KEYS */
2388 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
)
2390 return call_int_hook(audit_rule_init
, 0, field
, op
, rulestr
, lsmrule
);
2393 int security_audit_rule_known(struct audit_krule
*krule
)
2395 return call_int_hook(audit_rule_known
, 0, krule
);
2398 void security_audit_rule_free(void *lsmrule
)
2400 call_void_hook(audit_rule_free
, lsmrule
);
2403 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
)
2405 return call_int_hook(audit_rule_match
, 0, secid
, field
, op
, lsmrule
);
2407 #endif /* CONFIG_AUDIT */
2409 #ifdef CONFIG_BPF_SYSCALL
2410 int security_bpf(int cmd
, union bpf_attr
*attr
, unsigned int size
)
2412 return call_int_hook(bpf
, 0, cmd
, attr
, size
);
2414 int security_bpf_map(struct bpf_map
*map
, fmode_t fmode
)
2416 return call_int_hook(bpf_map
, 0, map
, fmode
);
2418 int security_bpf_prog(struct bpf_prog
*prog
)
2420 return call_int_hook(bpf_prog
, 0, prog
);
2422 int security_bpf_map_alloc(struct bpf_map
*map
)
2424 return call_int_hook(bpf_map_alloc_security
, 0, map
);
2426 int security_bpf_prog_alloc(struct bpf_prog_aux
*aux
)
2428 return call_int_hook(bpf_prog_alloc_security
, 0, aux
);
2430 void security_bpf_map_free(struct bpf_map
*map
)
2432 call_void_hook(bpf_map_free_security
, map
);
2434 void security_bpf_prog_free(struct bpf_prog_aux
*aux
)
2436 call_void_hook(bpf_prog_free_security
, aux
);
2438 #endif /* CONFIG_BPF_SYSCALL */
2440 int security_locked_down(enum lockdown_reason what
)
2442 return call_int_hook(locked_down
, 0, what
);
2444 EXPORT_SYMBOL(security_locked_down
);