2 * Security plug functions
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>
7 * Copyright (C) 2016 Mellanox Technologies
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.
15 #include <linux/capability.h>
16 #include <linux/dcache.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/kernel.h>
20 #include <linux/lsm_hooks.h>
21 #include <linux/integrity.h>
22 #include <linux/ima.h>
23 #include <linux/evm.h>
24 #include <linux/fsnotify.h>
25 #include <linux/mman.h>
26 #include <linux/mount.h>
27 #include <linux/personality.h>
28 #include <linux/backing-dev.h>
29 #include <linux/string.h>
32 #define MAX_LSM_EVM_XATTR 2
34 /* Maximum number of letters for an LSM name string */
35 #define SECURITY_NAME_MAX 10
37 struct security_hook_heads security_hook_heads __lsm_ro_after_init
;
39 /* Boot-time LSM user choice */
40 static __initdata
char chosen_lsm
[SECURITY_NAME_MAX
+ 1] =
41 CONFIG_DEFAULT_SECURITY
;
43 static void __init
do_security_initcalls(void)
46 call
= __security_initcall_start
;
47 while (call
< __security_initcall_end
) {
54 * security_init - initializes the security framework
56 * This should be called early in the kernel initialization sequence.
58 int __init
security_init(void)
61 struct list_head
*list
= (struct list_head
*) &security_hook_heads
;
63 for (i
= 0; i
< sizeof(security_hook_heads
) / sizeof(struct list_head
);
65 INIT_LIST_HEAD(&list
[i
]);
66 pr_info("Security Framework initialized\n");
69 * Load minor LSMs, with the capability module always first.
71 capability_add_hooks();
76 * Load all the remaining security modules.
78 do_security_initcalls();
83 /* Save user chosen LSM */
84 static int __init
choose_lsm(char *str
)
86 strncpy(chosen_lsm
, str
, SECURITY_NAME_MAX
);
89 __setup("security=", choose_lsm
);
91 static bool match_last_lsm(const char *list
, const char *lsm
)
95 if (WARN_ON(!list
|| !lsm
))
97 last
= strrchr(list
, ',');
99 /* Pass the comma, strcmp() will check for '\0' */
103 return !strcmp(last
, lsm
);
106 static int lsm_append(char *new, char **result
)
110 if (*result
== NULL
) {
111 *result
= kstrdup(new, GFP_KERNEL
);
113 /* Check if it is the last registered name */
114 if (match_last_lsm(*result
, new))
116 cp
= kasprintf(GFP_KERNEL
, "%s,%s", *result
, new);
126 * security_module_enable - Load given security module on boot ?
127 * @module: the name of the module
129 * Each LSM must pass this method before registering its own operations
130 * to avoid security registration races. This method may also be used
131 * to check if your LSM is currently loaded during kernel initialization.
137 * - The passed LSM is the one chosen by user at boot time,
138 * - or the passed LSM is configured as the default and the user did not
139 * choose an alternate LSM at boot time.
141 * Otherwise, return false.
143 int __init
security_module_enable(const char *module
)
145 return !strcmp(module
, chosen_lsm
);
149 * security_add_hooks - Add a modules hooks to the hook lists.
150 * @hooks: the hooks to add
151 * @count: the number of hooks to add
152 * @lsm: the name of the security module
154 * Each LSM has to register its hooks with the infrastructure.
156 void __init
security_add_hooks(struct security_hook_list
*hooks
, int count
,
161 for (i
= 0; i
< count
; i
++) {
163 list_add_tail_rcu(&hooks
[i
].list
, hooks
[i
].head
);
165 if (lsm_append(lsm
, &lsm_names
) < 0)
166 panic("%s - Cannot get early memory.\n", __func__
);
170 * Hook list operation macros.
173 * This is a hook that does not return a value.
176 * This is a hook that returns a value.
179 #define call_void_hook(FUNC, ...) \
181 struct security_hook_list *P; \
183 list_for_each_entry(P, &security_hook_heads.FUNC, list) \
184 P->hook.FUNC(__VA_ARGS__); \
187 #define call_int_hook(FUNC, IRC, ...) ({ \
190 struct security_hook_list *P; \
192 list_for_each_entry(P, &security_hook_heads.FUNC, list) { \
193 RC = P->hook.FUNC(__VA_ARGS__); \
201 /* Security operations */
203 int security_binder_set_context_mgr(struct task_struct
*mgr
)
205 return call_int_hook(binder_set_context_mgr
, 0, mgr
);
208 int security_binder_transaction(struct task_struct
*from
,
209 struct task_struct
*to
)
211 return call_int_hook(binder_transaction
, 0, from
, to
);
214 int security_binder_transfer_binder(struct task_struct
*from
,
215 struct task_struct
*to
)
217 return call_int_hook(binder_transfer_binder
, 0, from
, to
);
220 int security_binder_transfer_file(struct task_struct
*from
,
221 struct task_struct
*to
, struct file
*file
)
223 return call_int_hook(binder_transfer_file
, 0, from
, to
, file
);
226 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
)
228 return call_int_hook(ptrace_access_check
, 0, child
, mode
);
231 int security_ptrace_traceme(struct task_struct
*parent
)
233 return call_int_hook(ptrace_traceme
, 0, parent
);
236 int security_capget(struct task_struct
*target
,
237 kernel_cap_t
*effective
,
238 kernel_cap_t
*inheritable
,
239 kernel_cap_t
*permitted
)
241 return call_int_hook(capget
, 0, target
,
242 effective
, inheritable
, permitted
);
245 int security_capset(struct cred
*new, const struct cred
*old
,
246 const kernel_cap_t
*effective
,
247 const kernel_cap_t
*inheritable
,
248 const kernel_cap_t
*permitted
)
250 return call_int_hook(capset
, 0, new, old
,
251 effective
, inheritable
, permitted
);
254 int security_capable(const struct cred
*cred
, struct user_namespace
*ns
,
257 return call_int_hook(capable
, 0, cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
260 int security_capable_noaudit(const struct cred
*cred
, struct user_namespace
*ns
,
263 return call_int_hook(capable
, 0, cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
266 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
)
268 return call_int_hook(quotactl
, 0, cmds
, type
, id
, sb
);
271 int security_quota_on(struct dentry
*dentry
)
273 return call_int_hook(quota_on
, 0, dentry
);
276 int security_syslog(int type
)
278 return call_int_hook(syslog
, 0, type
);
281 int security_settime64(const struct timespec64
*ts
, const struct timezone
*tz
)
283 return call_int_hook(settime
, 0, ts
, tz
);
286 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
288 struct security_hook_list
*hp
;
289 int cap_sys_admin
= 1;
293 * The module will respond with a positive value if
294 * it thinks the __vm_enough_memory() call should be
295 * made with the cap_sys_admin set. If all of the modules
296 * agree that it should be set it will. If any module
297 * thinks it should not be set it won't.
299 list_for_each_entry(hp
, &security_hook_heads
.vm_enough_memory
, list
) {
300 rc
= hp
->hook
.vm_enough_memory(mm
, pages
);
306 return __vm_enough_memory(mm
, pages
, cap_sys_admin
);
309 int security_bprm_set_creds(struct linux_binprm
*bprm
)
311 return call_int_hook(bprm_set_creds
, 0, bprm
);
314 int security_bprm_check(struct linux_binprm
*bprm
)
318 ret
= call_int_hook(bprm_check_security
, 0, bprm
);
321 return ima_bprm_check(bprm
);
324 void security_bprm_committing_creds(struct linux_binprm
*bprm
)
326 call_void_hook(bprm_committing_creds
, bprm
);
329 void security_bprm_committed_creds(struct linux_binprm
*bprm
)
331 call_void_hook(bprm_committed_creds
, bprm
);
334 int security_bprm_secureexec(struct linux_binprm
*bprm
)
336 return call_int_hook(bprm_secureexec
, 0, bprm
);
339 int security_sb_alloc(struct super_block
*sb
)
341 return call_int_hook(sb_alloc_security
, 0, sb
);
344 void security_sb_free(struct super_block
*sb
)
346 call_void_hook(sb_free_security
, sb
);
349 int security_sb_copy_data(char *orig
, char *copy
)
351 return call_int_hook(sb_copy_data
, 0, orig
, copy
);
353 EXPORT_SYMBOL(security_sb_copy_data
);
355 int security_sb_remount(struct super_block
*sb
, void *data
)
357 return call_int_hook(sb_remount
, 0, sb
, data
);
360 int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
362 return call_int_hook(sb_kern_mount
, 0, sb
, flags
, data
);
365 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
)
367 return call_int_hook(sb_show_options
, 0, m
, sb
);
370 int security_sb_statfs(struct dentry
*dentry
)
372 return call_int_hook(sb_statfs
, 0, dentry
);
375 int security_sb_mount(const char *dev_name
, const struct path
*path
,
376 const char *type
, unsigned long flags
, void *data
)
378 return call_int_hook(sb_mount
, 0, dev_name
, path
, type
, flags
, data
);
381 int security_sb_umount(struct vfsmount
*mnt
, int flags
)
383 return call_int_hook(sb_umount
, 0, mnt
, flags
);
386 int security_sb_pivotroot(const struct path
*old_path
, const struct path
*new_path
)
388 return call_int_hook(sb_pivotroot
, 0, old_path
, new_path
);
391 int security_sb_set_mnt_opts(struct super_block
*sb
,
392 struct security_mnt_opts
*opts
,
393 unsigned long kern_flags
,
394 unsigned long *set_kern_flags
)
396 return call_int_hook(sb_set_mnt_opts
,
397 opts
->num_mnt_opts
? -EOPNOTSUPP
: 0, sb
,
398 opts
, kern_flags
, set_kern_flags
);
400 EXPORT_SYMBOL(security_sb_set_mnt_opts
);
402 int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
403 struct super_block
*newsb
)
405 return call_int_hook(sb_clone_mnt_opts
, 0, oldsb
, newsb
);
407 EXPORT_SYMBOL(security_sb_clone_mnt_opts
);
409 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
411 return call_int_hook(sb_parse_opts_str
, 0, options
, opts
);
413 EXPORT_SYMBOL(security_sb_parse_opts_str
);
415 int security_inode_alloc(struct inode
*inode
)
417 inode
->i_security
= NULL
;
418 return call_int_hook(inode_alloc_security
, 0, inode
);
421 void security_inode_free(struct inode
*inode
)
423 integrity_inode_free(inode
);
424 call_void_hook(inode_free_security
, inode
);
427 int security_dentry_init_security(struct dentry
*dentry
, int mode
,
428 const struct qstr
*name
, void **ctx
,
431 return call_int_hook(dentry_init_security
, -EOPNOTSUPP
, dentry
, mode
,
434 EXPORT_SYMBOL(security_dentry_init_security
);
436 int security_dentry_create_files_as(struct dentry
*dentry
, int mode
,
438 const struct cred
*old
, struct cred
*new)
440 return call_int_hook(dentry_create_files_as
, 0, dentry
, mode
,
443 EXPORT_SYMBOL(security_dentry_create_files_as
);
445 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
446 const struct qstr
*qstr
,
447 const initxattrs initxattrs
, void *fs_data
)
449 struct xattr new_xattrs
[MAX_LSM_EVM_XATTR
+ 1];
450 struct xattr
*lsm_xattr
, *evm_xattr
, *xattr
;
453 if (unlikely(IS_PRIVATE(inode
)))
457 return call_int_hook(inode_init_security
, -EOPNOTSUPP
, inode
,
458 dir
, qstr
, NULL
, NULL
, NULL
);
459 memset(new_xattrs
, 0, sizeof(new_xattrs
));
460 lsm_xattr
= new_xattrs
;
461 ret
= call_int_hook(inode_init_security
, -EOPNOTSUPP
, inode
, dir
, qstr
,
464 &lsm_xattr
->value_len
);
468 evm_xattr
= lsm_xattr
+ 1;
469 ret
= evm_inode_init_security(inode
, lsm_xattr
, evm_xattr
);
472 ret
= initxattrs(inode
, new_xattrs
, fs_data
);
474 for (xattr
= new_xattrs
; xattr
->value
!= NULL
; xattr
++)
476 return (ret
== -EOPNOTSUPP
) ? 0 : ret
;
478 EXPORT_SYMBOL(security_inode_init_security
);
480 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
481 const struct qstr
*qstr
, const char **name
,
482 void **value
, size_t *len
)
484 if (unlikely(IS_PRIVATE(inode
)))
486 return call_int_hook(inode_init_security
, -EOPNOTSUPP
, inode
, dir
,
487 qstr
, name
, value
, len
);
489 EXPORT_SYMBOL(security_old_inode_init_security
);
491 #ifdef CONFIG_SECURITY_PATH
492 int security_path_mknod(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
495 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
497 return call_int_hook(path_mknod
, 0, dir
, dentry
, mode
, dev
);
499 EXPORT_SYMBOL(security_path_mknod
);
501 int security_path_mkdir(const struct path
*dir
, struct dentry
*dentry
, umode_t mode
)
503 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
505 return call_int_hook(path_mkdir
, 0, dir
, dentry
, mode
);
507 EXPORT_SYMBOL(security_path_mkdir
);
509 int security_path_rmdir(const struct path
*dir
, struct dentry
*dentry
)
511 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
513 return call_int_hook(path_rmdir
, 0, dir
, dentry
);
516 int security_path_unlink(const struct path
*dir
, struct dentry
*dentry
)
518 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
520 return call_int_hook(path_unlink
, 0, dir
, dentry
);
522 EXPORT_SYMBOL(security_path_unlink
);
524 int security_path_symlink(const struct path
*dir
, struct dentry
*dentry
,
525 const char *old_name
)
527 if (unlikely(IS_PRIVATE(d_backing_inode(dir
->dentry
))))
529 return call_int_hook(path_symlink
, 0, dir
, dentry
, old_name
);
532 int security_path_link(struct dentry
*old_dentry
, const struct path
*new_dir
,
533 struct dentry
*new_dentry
)
535 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry
))))
537 return call_int_hook(path_link
, 0, old_dentry
, new_dir
, new_dentry
);
540 int security_path_rename(const struct path
*old_dir
, struct dentry
*old_dentry
,
541 const struct path
*new_dir
, struct dentry
*new_dentry
,
544 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry
)) ||
545 (d_is_positive(new_dentry
) && IS_PRIVATE(d_backing_inode(new_dentry
)))))
548 if (flags
& RENAME_EXCHANGE
) {
549 int err
= call_int_hook(path_rename
, 0, new_dir
, new_dentry
,
550 old_dir
, old_dentry
);
555 return call_int_hook(path_rename
, 0, old_dir
, old_dentry
, new_dir
,
558 EXPORT_SYMBOL(security_path_rename
);
560 int security_path_truncate(const struct path
*path
)
562 if (unlikely(IS_PRIVATE(d_backing_inode(path
->dentry
))))
564 return call_int_hook(path_truncate
, 0, path
);
567 int security_path_chmod(const struct path
*path
, umode_t mode
)
569 if (unlikely(IS_PRIVATE(d_backing_inode(path
->dentry
))))
571 return call_int_hook(path_chmod
, 0, path
, mode
);
574 int security_path_chown(const struct path
*path
, kuid_t uid
, kgid_t gid
)
576 if (unlikely(IS_PRIVATE(d_backing_inode(path
->dentry
))))
578 return call_int_hook(path_chown
, 0, path
, uid
, gid
);
581 int security_path_chroot(const struct path
*path
)
583 return call_int_hook(path_chroot
, 0, path
);
587 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
589 if (unlikely(IS_PRIVATE(dir
)))
591 return call_int_hook(inode_create
, 0, dir
, dentry
, mode
);
593 EXPORT_SYMBOL_GPL(security_inode_create
);
595 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
596 struct dentry
*new_dentry
)
598 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry
))))
600 return call_int_hook(inode_link
, 0, old_dentry
, dir
, new_dentry
);
603 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
)
605 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
607 return call_int_hook(inode_unlink
, 0, dir
, dentry
);
610 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
611 const char *old_name
)
613 if (unlikely(IS_PRIVATE(dir
)))
615 return call_int_hook(inode_symlink
, 0, dir
, dentry
, old_name
);
618 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
620 if (unlikely(IS_PRIVATE(dir
)))
622 return call_int_hook(inode_mkdir
, 0, dir
, dentry
, mode
);
624 EXPORT_SYMBOL_GPL(security_inode_mkdir
);
626 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
)
628 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
630 return call_int_hook(inode_rmdir
, 0, dir
, dentry
);
633 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
)
635 if (unlikely(IS_PRIVATE(dir
)))
637 return call_int_hook(inode_mknod
, 0, dir
, dentry
, mode
, dev
);
640 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
641 struct inode
*new_dir
, struct dentry
*new_dentry
,
644 if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry
)) ||
645 (d_is_positive(new_dentry
) && IS_PRIVATE(d_backing_inode(new_dentry
)))))
648 if (flags
& RENAME_EXCHANGE
) {
649 int err
= call_int_hook(inode_rename
, 0, new_dir
, new_dentry
,
650 old_dir
, old_dentry
);
655 return call_int_hook(inode_rename
, 0, old_dir
, old_dentry
,
656 new_dir
, new_dentry
);
659 int security_inode_readlink(struct dentry
*dentry
)
661 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
663 return call_int_hook(inode_readlink
, 0, dentry
);
666 int security_inode_follow_link(struct dentry
*dentry
, struct inode
*inode
,
669 if (unlikely(IS_PRIVATE(inode
)))
671 return call_int_hook(inode_follow_link
, 0, dentry
, inode
, rcu
);
674 int security_inode_permission(struct inode
*inode
, int mask
)
676 if (unlikely(IS_PRIVATE(inode
)))
678 return call_int_hook(inode_permission
, 0, inode
, mask
);
681 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
)
685 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
687 ret
= call_int_hook(inode_setattr
, 0, dentry
, attr
);
690 return evm_inode_setattr(dentry
, attr
);
692 EXPORT_SYMBOL_GPL(security_inode_setattr
);
694 int security_inode_getattr(const struct path
*path
)
696 if (unlikely(IS_PRIVATE(d_backing_inode(path
->dentry
))))
698 return call_int_hook(inode_getattr
, 0, path
);
701 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
702 const void *value
, size_t size
, int flags
)
706 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
709 * SELinux and Smack integrate the cap call,
710 * so assume that all LSMs supplying this call do so.
712 ret
= call_int_hook(inode_setxattr
, 1, dentry
, name
, value
, size
,
716 ret
= cap_inode_setxattr(dentry
, name
, value
, size
, flags
);
719 ret
= ima_inode_setxattr(dentry
, name
, value
, size
);
722 return evm_inode_setxattr(dentry
, name
, value
, size
);
725 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
726 const void *value
, size_t size
, int flags
)
728 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
730 call_void_hook(inode_post_setxattr
, dentry
, name
, value
, size
, flags
);
731 evm_inode_post_setxattr(dentry
, name
, value
, size
);
734 int security_inode_getxattr(struct dentry
*dentry
, const char *name
)
736 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
738 return call_int_hook(inode_getxattr
, 0, dentry
, name
);
741 int security_inode_listxattr(struct dentry
*dentry
)
743 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
745 return call_int_hook(inode_listxattr
, 0, dentry
);
748 int security_inode_removexattr(struct dentry
*dentry
, const char *name
)
752 if (unlikely(IS_PRIVATE(d_backing_inode(dentry
))))
755 * SELinux and Smack integrate the cap call,
756 * so assume that all LSMs supplying this call do so.
758 ret
= call_int_hook(inode_removexattr
, 1, dentry
, name
);
760 ret
= cap_inode_removexattr(dentry
, name
);
763 ret
= ima_inode_removexattr(dentry
, name
);
766 return evm_inode_removexattr(dentry
, name
);
769 int security_inode_need_killpriv(struct dentry
*dentry
)
771 return call_int_hook(inode_need_killpriv
, 0, dentry
);
774 int security_inode_killpriv(struct dentry
*dentry
)
776 return call_int_hook(inode_killpriv
, 0, dentry
);
779 int security_inode_getsecurity(struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
781 struct security_hook_list
*hp
;
784 if (unlikely(IS_PRIVATE(inode
)))
787 * Only one module will provide an attribute with a given name.
789 list_for_each_entry(hp
, &security_hook_heads
.inode_getsecurity
, list
) {
790 rc
= hp
->hook
.inode_getsecurity(inode
, name
, buffer
, alloc
);
791 if (rc
!= -EOPNOTSUPP
)
797 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
799 struct security_hook_list
*hp
;
802 if (unlikely(IS_PRIVATE(inode
)))
805 * Only one module will provide an attribute with a given name.
807 list_for_each_entry(hp
, &security_hook_heads
.inode_setsecurity
, list
) {
808 rc
= hp
->hook
.inode_setsecurity(inode
, name
, value
, size
,
810 if (rc
!= -EOPNOTSUPP
)
816 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
818 if (unlikely(IS_PRIVATE(inode
)))
820 return call_int_hook(inode_listsecurity
, 0, inode
, buffer
, buffer_size
);
822 EXPORT_SYMBOL(security_inode_listsecurity
);
824 void security_inode_getsecid(struct inode
*inode
, u32
*secid
)
826 call_void_hook(inode_getsecid
, inode
, secid
);
829 int security_inode_copy_up(struct dentry
*src
, struct cred
**new)
831 return call_int_hook(inode_copy_up
, 0, src
, new);
833 EXPORT_SYMBOL(security_inode_copy_up
);
835 int security_inode_copy_up_xattr(const char *name
)
837 return call_int_hook(inode_copy_up_xattr
, -EOPNOTSUPP
, name
);
839 EXPORT_SYMBOL(security_inode_copy_up_xattr
);
841 int security_file_permission(struct file
*file
, int mask
)
845 ret
= call_int_hook(file_permission
, 0, file
, mask
);
849 return fsnotify_perm(file
, mask
);
852 int security_file_alloc(struct file
*file
)
854 return call_int_hook(file_alloc_security
, 0, file
);
857 void security_file_free(struct file
*file
)
859 call_void_hook(file_free_security
, file
);
862 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
864 return call_int_hook(file_ioctl
, 0, file
, cmd
, arg
);
867 static inline unsigned long mmap_prot(struct file
*file
, unsigned long prot
)
870 * Does we have PROT_READ and does the application expect
871 * it to imply PROT_EXEC? If not, nothing to talk about...
873 if ((prot
& (PROT_READ
| PROT_EXEC
)) != PROT_READ
)
875 if (!(current
->personality
& READ_IMPLIES_EXEC
))
878 * if that's an anonymous mapping, let it.
881 return prot
| PROT_EXEC
;
883 * ditto if it's not on noexec mount, except that on !MMU we need
884 * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case
886 if (!path_noexec(&file
->f_path
)) {
888 if (file
->f_op
->mmap_capabilities
) {
889 unsigned caps
= file
->f_op
->mmap_capabilities(file
);
890 if (!(caps
& NOMMU_MAP_EXEC
))
894 return prot
| PROT_EXEC
;
896 /* anything on noexec mount won't get PROT_EXEC */
900 int security_mmap_file(struct file
*file
, unsigned long prot
,
904 ret
= call_int_hook(mmap_file
, 0, file
, prot
,
905 mmap_prot(file
, prot
), flags
);
908 return ima_file_mmap(file
, prot
);
911 int security_mmap_addr(unsigned long addr
)
913 return call_int_hook(mmap_addr
, 0, addr
);
916 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
919 return call_int_hook(file_mprotect
, 0, vma
, reqprot
, prot
);
922 int security_file_lock(struct file
*file
, unsigned int cmd
)
924 return call_int_hook(file_lock
, 0, file
, cmd
);
927 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
929 return call_int_hook(file_fcntl
, 0, file
, cmd
, arg
);
932 void security_file_set_fowner(struct file
*file
)
934 call_void_hook(file_set_fowner
, file
);
937 int security_file_send_sigiotask(struct task_struct
*tsk
,
938 struct fown_struct
*fown
, int sig
)
940 return call_int_hook(file_send_sigiotask
, 0, tsk
, fown
, sig
);
943 int security_file_receive(struct file
*file
)
945 return call_int_hook(file_receive
, 0, file
);
948 int security_file_open(struct file
*file
, const struct cred
*cred
)
952 ret
= call_int_hook(file_open
, 0, file
, cred
);
956 return fsnotify_perm(file
, MAY_OPEN
);
959 int security_task_create(unsigned long clone_flags
)
961 return call_int_hook(task_create
, 0, clone_flags
);
964 int security_task_alloc(struct task_struct
*task
, unsigned long clone_flags
)
966 return call_int_hook(task_alloc
, 0, task
, clone_flags
);
969 void security_task_free(struct task_struct
*task
)
971 call_void_hook(task_free
, task
);
974 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
976 return call_int_hook(cred_alloc_blank
, 0, cred
, gfp
);
979 void security_cred_free(struct cred
*cred
)
981 call_void_hook(cred_free
, cred
);
984 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
)
986 return call_int_hook(cred_prepare
, 0, new, old
, gfp
);
989 void security_transfer_creds(struct cred
*new, const struct cred
*old
)
991 call_void_hook(cred_transfer
, new, old
);
994 int security_kernel_act_as(struct cred
*new, u32 secid
)
996 return call_int_hook(kernel_act_as
, 0, new, secid
);
999 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
)
1001 return call_int_hook(kernel_create_files_as
, 0, new, inode
);
1004 int security_kernel_module_request(char *kmod_name
)
1006 return call_int_hook(kernel_module_request
, 0, kmod_name
);
1009 int security_kernel_read_file(struct file
*file
, enum kernel_read_file_id id
)
1013 ret
= call_int_hook(kernel_read_file
, 0, file
, id
);
1016 return ima_read_file(file
, id
);
1018 EXPORT_SYMBOL_GPL(security_kernel_read_file
);
1020 int security_kernel_post_read_file(struct file
*file
, char *buf
, loff_t size
,
1021 enum kernel_read_file_id id
)
1025 ret
= call_int_hook(kernel_post_read_file
, 0, file
, buf
, size
, id
);
1028 return ima_post_read_file(file
, buf
, size
, id
);
1030 EXPORT_SYMBOL_GPL(security_kernel_post_read_file
);
1032 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
1035 return call_int_hook(task_fix_setuid
, 0, new, old
, flags
);
1038 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
1040 return call_int_hook(task_setpgid
, 0, p
, pgid
);
1043 int security_task_getpgid(struct task_struct
*p
)
1045 return call_int_hook(task_getpgid
, 0, p
);
1048 int security_task_getsid(struct task_struct
*p
)
1050 return call_int_hook(task_getsid
, 0, p
);
1053 void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
1056 call_void_hook(task_getsecid
, p
, secid
);
1058 EXPORT_SYMBOL(security_task_getsecid
);
1060 int security_task_setnice(struct task_struct
*p
, int nice
)
1062 return call_int_hook(task_setnice
, 0, p
, nice
);
1065 int security_task_setioprio(struct task_struct
*p
, int ioprio
)
1067 return call_int_hook(task_setioprio
, 0, p
, ioprio
);
1070 int security_task_getioprio(struct task_struct
*p
)
1072 return call_int_hook(task_getioprio
, 0, p
);
1075 int security_task_prlimit(const struct cred
*cred
, const struct cred
*tcred
,
1078 return call_int_hook(task_prlimit
, 0, cred
, tcred
, flags
);
1081 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
1082 struct rlimit
*new_rlim
)
1084 return call_int_hook(task_setrlimit
, 0, p
, resource
, new_rlim
);
1087 int security_task_setscheduler(struct task_struct
*p
)
1089 return call_int_hook(task_setscheduler
, 0, p
);
1092 int security_task_getscheduler(struct task_struct
*p
)
1094 return call_int_hook(task_getscheduler
, 0, p
);
1097 int security_task_movememory(struct task_struct
*p
)
1099 return call_int_hook(task_movememory
, 0, p
);
1102 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
1105 return call_int_hook(task_kill
, 0, p
, info
, sig
, secid
);
1108 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
1109 unsigned long arg4
, unsigned long arg5
)
1113 struct security_hook_list
*hp
;
1115 list_for_each_entry(hp
, &security_hook_heads
.task_prctl
, list
) {
1116 thisrc
= hp
->hook
.task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
1117 if (thisrc
!= -ENOSYS
) {
1126 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
1128 call_void_hook(task_to_inode
, p
, inode
);
1131 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
)
1133 return call_int_hook(ipc_permission
, 0, ipcp
, flag
);
1136 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
1139 call_void_hook(ipc_getsecid
, ipcp
, secid
);
1142 int security_msg_msg_alloc(struct msg_msg
*msg
)
1144 return call_int_hook(msg_msg_alloc_security
, 0, msg
);
1147 void security_msg_msg_free(struct msg_msg
*msg
)
1149 call_void_hook(msg_msg_free_security
, msg
);
1152 int security_msg_queue_alloc(struct msg_queue
*msq
)
1154 return call_int_hook(msg_queue_alloc_security
, 0, msq
);
1157 void security_msg_queue_free(struct msg_queue
*msq
)
1159 call_void_hook(msg_queue_free_security
, msq
);
1162 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
)
1164 return call_int_hook(msg_queue_associate
, 0, msq
, msqflg
);
1167 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
1169 return call_int_hook(msg_queue_msgctl
, 0, msq
, cmd
);
1172 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
1173 struct msg_msg
*msg
, int msqflg
)
1175 return call_int_hook(msg_queue_msgsnd
, 0, msq
, msg
, msqflg
);
1178 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
1179 struct task_struct
*target
, long type
, int mode
)
1181 return call_int_hook(msg_queue_msgrcv
, 0, msq
, msg
, target
, type
, mode
);
1184 int security_shm_alloc(struct shmid_kernel
*shp
)
1186 return call_int_hook(shm_alloc_security
, 0, shp
);
1189 void security_shm_free(struct shmid_kernel
*shp
)
1191 call_void_hook(shm_free_security
, shp
);
1194 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
)
1196 return call_int_hook(shm_associate
, 0, shp
, shmflg
);
1199 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
1201 return call_int_hook(shm_shmctl
, 0, shp
, cmd
);
1204 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
)
1206 return call_int_hook(shm_shmat
, 0, shp
, shmaddr
, shmflg
);
1209 int security_sem_alloc(struct sem_array
*sma
)
1211 return call_int_hook(sem_alloc_security
, 0, sma
);
1214 void security_sem_free(struct sem_array
*sma
)
1216 call_void_hook(sem_free_security
, sma
);
1219 int security_sem_associate(struct sem_array
*sma
, int semflg
)
1221 return call_int_hook(sem_associate
, 0, sma
, semflg
);
1224 int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1226 return call_int_hook(sem_semctl
, 0, sma
, cmd
);
1229 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
1230 unsigned nsops
, int alter
)
1232 return call_int_hook(sem_semop
, 0, sma
, sops
, nsops
, alter
);
1235 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1237 if (unlikely(inode
&& IS_PRIVATE(inode
)))
1239 call_void_hook(d_instantiate
, dentry
, inode
);
1241 EXPORT_SYMBOL(security_d_instantiate
);
1243 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1245 return call_int_hook(getprocattr
, -EINVAL
, p
, name
, value
);
1248 int security_setprocattr(const char *name
, void *value
, size_t size
)
1250 return call_int_hook(setprocattr
, -EINVAL
, name
, value
, size
);
1253 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1255 return call_int_hook(netlink_send
, 0, sk
, skb
);
1258 int security_ismaclabel(const char *name
)
1260 return call_int_hook(ismaclabel
, 0, name
);
1262 EXPORT_SYMBOL(security_ismaclabel
);
1264 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1266 return call_int_hook(secid_to_secctx
, -EOPNOTSUPP
, secid
, secdata
,
1269 EXPORT_SYMBOL(security_secid_to_secctx
);
1271 int security_secctx_to_secid(const char *secdata
, u32 seclen
, u32
*secid
)
1274 return call_int_hook(secctx_to_secid
, 0, secdata
, seclen
, secid
);
1276 EXPORT_SYMBOL(security_secctx_to_secid
);
1278 void security_release_secctx(char *secdata
, u32 seclen
)
1280 call_void_hook(release_secctx
, secdata
, seclen
);
1282 EXPORT_SYMBOL(security_release_secctx
);
1284 void security_inode_invalidate_secctx(struct inode
*inode
)
1286 call_void_hook(inode_invalidate_secctx
, inode
);
1288 EXPORT_SYMBOL(security_inode_invalidate_secctx
);
1290 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1292 return call_int_hook(inode_notifysecctx
, 0, inode
, ctx
, ctxlen
);
1294 EXPORT_SYMBOL(security_inode_notifysecctx
);
1296 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1298 return call_int_hook(inode_setsecctx
, 0, dentry
, ctx
, ctxlen
);
1300 EXPORT_SYMBOL(security_inode_setsecctx
);
1302 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1304 return call_int_hook(inode_getsecctx
, -EOPNOTSUPP
, inode
, ctx
, ctxlen
);
1306 EXPORT_SYMBOL(security_inode_getsecctx
);
1308 #ifdef CONFIG_SECURITY_NETWORK
1310 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
)
1312 return call_int_hook(unix_stream_connect
, 0, sock
, other
, newsk
);
1314 EXPORT_SYMBOL(security_unix_stream_connect
);
1316 int security_unix_may_send(struct socket
*sock
, struct socket
*other
)
1318 return call_int_hook(unix_may_send
, 0, sock
, other
);
1320 EXPORT_SYMBOL(security_unix_may_send
);
1322 int security_socket_create(int family
, int type
, int protocol
, int kern
)
1324 return call_int_hook(socket_create
, 0, family
, type
, protocol
, kern
);
1327 int security_socket_post_create(struct socket
*sock
, int family
,
1328 int type
, int protocol
, int kern
)
1330 return call_int_hook(socket_post_create
, 0, sock
, family
, type
,
1334 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
)
1336 return call_int_hook(socket_bind
, 0, sock
, address
, addrlen
);
1339 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
)
1341 return call_int_hook(socket_connect
, 0, sock
, address
, addrlen
);
1344 int security_socket_listen(struct socket
*sock
, int backlog
)
1346 return call_int_hook(socket_listen
, 0, sock
, backlog
);
1349 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
)
1351 return call_int_hook(socket_accept
, 0, sock
, newsock
);
1354 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
)
1356 return call_int_hook(socket_sendmsg
, 0, sock
, msg
, size
);
1359 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
1360 int size
, int flags
)
1362 return call_int_hook(socket_recvmsg
, 0, sock
, msg
, size
, flags
);
1365 int security_socket_getsockname(struct socket
*sock
)
1367 return call_int_hook(socket_getsockname
, 0, sock
);
1370 int security_socket_getpeername(struct socket
*sock
)
1372 return call_int_hook(socket_getpeername
, 0, sock
);
1375 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
)
1377 return call_int_hook(socket_getsockopt
, 0, sock
, level
, optname
);
1380 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
)
1382 return call_int_hook(socket_setsockopt
, 0, sock
, level
, optname
);
1385 int security_socket_shutdown(struct socket
*sock
, int how
)
1387 return call_int_hook(socket_shutdown
, 0, sock
, how
);
1390 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
)
1392 return call_int_hook(socket_sock_rcv_skb
, 0, sk
, skb
);
1394 EXPORT_SYMBOL(security_sock_rcv_skb
);
1396 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1397 int __user
*optlen
, unsigned len
)
1399 return call_int_hook(socket_getpeersec_stream
, -ENOPROTOOPT
, sock
,
1400 optval
, optlen
, len
);
1403 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
1405 return call_int_hook(socket_getpeersec_dgram
, -ENOPROTOOPT
, sock
,
1408 EXPORT_SYMBOL(security_socket_getpeersec_dgram
);
1410 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
1412 return call_int_hook(sk_alloc_security
, 0, sk
, family
, priority
);
1415 void security_sk_free(struct sock
*sk
)
1417 call_void_hook(sk_free_security
, sk
);
1420 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
1422 call_void_hook(sk_clone_security
, sk
, newsk
);
1424 EXPORT_SYMBOL(security_sk_clone
);
1426 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
1428 call_void_hook(sk_getsecid
, sk
, &fl
->flowi_secid
);
1430 EXPORT_SYMBOL(security_sk_classify_flow
);
1432 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
1434 call_void_hook(req_classify_flow
, req
, fl
);
1436 EXPORT_SYMBOL(security_req_classify_flow
);
1438 void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
1440 call_void_hook(sock_graft
, sk
, parent
);
1442 EXPORT_SYMBOL(security_sock_graft
);
1444 int security_inet_conn_request(struct sock
*sk
,
1445 struct sk_buff
*skb
, struct request_sock
*req
)
1447 return call_int_hook(inet_conn_request
, 0, sk
, skb
, req
);
1449 EXPORT_SYMBOL(security_inet_conn_request
);
1451 void security_inet_csk_clone(struct sock
*newsk
,
1452 const struct request_sock
*req
)
1454 call_void_hook(inet_csk_clone
, newsk
, req
);
1457 void security_inet_conn_established(struct sock
*sk
,
1458 struct sk_buff
*skb
)
1460 call_void_hook(inet_conn_established
, sk
, skb
);
1463 int security_secmark_relabel_packet(u32 secid
)
1465 return call_int_hook(secmark_relabel_packet
, 0, secid
);
1467 EXPORT_SYMBOL(security_secmark_relabel_packet
);
1469 void security_secmark_refcount_inc(void)
1471 call_void_hook(secmark_refcount_inc
);
1473 EXPORT_SYMBOL(security_secmark_refcount_inc
);
1475 void security_secmark_refcount_dec(void)
1477 call_void_hook(secmark_refcount_dec
);
1479 EXPORT_SYMBOL(security_secmark_refcount_dec
);
1481 int security_tun_dev_alloc_security(void **security
)
1483 return call_int_hook(tun_dev_alloc_security
, 0, security
);
1485 EXPORT_SYMBOL(security_tun_dev_alloc_security
);
1487 void security_tun_dev_free_security(void *security
)
1489 call_void_hook(tun_dev_free_security
, security
);
1491 EXPORT_SYMBOL(security_tun_dev_free_security
);
1493 int security_tun_dev_create(void)
1495 return call_int_hook(tun_dev_create
, 0);
1497 EXPORT_SYMBOL(security_tun_dev_create
);
1499 int security_tun_dev_attach_queue(void *security
)
1501 return call_int_hook(tun_dev_attach_queue
, 0, security
);
1503 EXPORT_SYMBOL(security_tun_dev_attach_queue
);
1505 int security_tun_dev_attach(struct sock
*sk
, void *security
)
1507 return call_int_hook(tun_dev_attach
, 0, sk
, security
);
1509 EXPORT_SYMBOL(security_tun_dev_attach
);
1511 int security_tun_dev_open(void *security
)
1513 return call_int_hook(tun_dev_open
, 0, security
);
1515 EXPORT_SYMBOL(security_tun_dev_open
);
1517 #endif /* CONFIG_SECURITY_NETWORK */
1519 #ifdef CONFIG_SECURITY_INFINIBAND
1521 int security_ib_pkey_access(void *sec
, u64 subnet_prefix
, u16 pkey
)
1523 return call_int_hook(ib_pkey_access
, 0, sec
, subnet_prefix
, pkey
);
1525 EXPORT_SYMBOL(security_ib_pkey_access
);
1527 int security_ib_alloc_security(void **sec
)
1529 return call_int_hook(ib_alloc_security
, 0, sec
);
1531 EXPORT_SYMBOL(security_ib_alloc_security
);
1533 void security_ib_free_security(void *sec
)
1535 call_void_hook(ib_free_security
, sec
);
1537 EXPORT_SYMBOL(security_ib_free_security
);
1538 #endif /* CONFIG_SECURITY_INFINIBAND */
1540 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1542 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1543 struct xfrm_user_sec_ctx
*sec_ctx
,
1546 return call_int_hook(xfrm_policy_alloc_security
, 0, ctxp
, sec_ctx
, gfp
);
1548 EXPORT_SYMBOL(security_xfrm_policy_alloc
);
1550 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
,
1551 struct xfrm_sec_ctx
**new_ctxp
)
1553 return call_int_hook(xfrm_policy_clone_security
, 0, old_ctx
, new_ctxp
);
1556 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1558 call_void_hook(xfrm_policy_free_security
, ctx
);
1560 EXPORT_SYMBOL(security_xfrm_policy_free
);
1562 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1564 return call_int_hook(xfrm_policy_delete_security
, 0, ctx
);
1567 int security_xfrm_state_alloc(struct xfrm_state
*x
,
1568 struct xfrm_user_sec_ctx
*sec_ctx
)
1570 return call_int_hook(xfrm_state_alloc
, 0, x
, sec_ctx
);
1572 EXPORT_SYMBOL(security_xfrm_state_alloc
);
1574 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1575 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1577 return call_int_hook(xfrm_state_alloc_acquire
, 0, x
, polsec
, secid
);
1580 int security_xfrm_state_delete(struct xfrm_state
*x
)
1582 return call_int_hook(xfrm_state_delete_security
, 0, x
);
1584 EXPORT_SYMBOL(security_xfrm_state_delete
);
1586 void security_xfrm_state_free(struct xfrm_state
*x
)
1588 call_void_hook(xfrm_state_free_security
, x
);
1591 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1593 return call_int_hook(xfrm_policy_lookup
, 0, ctx
, fl_secid
, dir
);
1596 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1597 struct xfrm_policy
*xp
,
1598 const struct flowi
*fl
)
1600 struct security_hook_list
*hp
;
1604 * Since this function is expected to return 0 or 1, the judgment
1605 * becomes difficult if multiple LSMs supply this call. Fortunately,
1606 * we can use the first LSM's judgment because currently only SELinux
1607 * supplies this call.
1609 * For speed optimization, we explicitly break the loop rather than
1612 list_for_each_entry(hp
, &security_hook_heads
.xfrm_state_pol_flow_match
,
1614 rc
= hp
->hook
.xfrm_state_pol_flow_match(x
, xp
, fl
);
1620 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1622 return call_int_hook(xfrm_decode_session
, 0, skb
, secid
, 1);
1625 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1627 int rc
= call_int_hook(xfrm_decode_session
, 0, skb
, &fl
->flowi_secid
,
1632 EXPORT_SYMBOL(security_skb_classify_flow
);
1634 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1638 int security_key_alloc(struct key
*key
, const struct cred
*cred
,
1639 unsigned long flags
)
1641 return call_int_hook(key_alloc
, 0, key
, cred
, flags
);
1644 void security_key_free(struct key
*key
)
1646 call_void_hook(key_free
, key
);
1649 int security_key_permission(key_ref_t key_ref
,
1650 const struct cred
*cred
, unsigned perm
)
1652 return call_int_hook(key_permission
, 0, key_ref
, cred
, perm
);
1655 int security_key_getsecurity(struct key
*key
, char **_buffer
)
1658 return call_int_hook(key_getsecurity
, 0, key
, _buffer
);
1661 #endif /* CONFIG_KEYS */
1665 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
)
1667 return call_int_hook(audit_rule_init
, 0, field
, op
, rulestr
, lsmrule
);
1670 int security_audit_rule_known(struct audit_krule
*krule
)
1672 return call_int_hook(audit_rule_known
, 0, krule
);
1675 void security_audit_rule_free(void *lsmrule
)
1677 call_void_hook(audit_rule_free
, lsmrule
);
1680 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1681 struct audit_context
*actx
)
1683 return call_int_hook(audit_rule_match
, 0, secid
, field
, op
, lsmrule
,
1686 #endif /* CONFIG_AUDIT */