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>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #include <linux/capability.h>
15 #include <linux/dcache.h>
16 #include <linux/module.h>
17 #include <linux/init.h>
18 #include <linux/kernel.h>
19 #include <linux/security.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>
30 #define MAX_LSM_EVM_XATTR 2
32 /* Boot-time LSM user choice */
33 static __initdata
char chosen_lsm
[SECURITY_NAME_MAX
+ 1] =
34 CONFIG_DEFAULT_SECURITY
;
36 static struct security_operations
*security_ops
;
37 static struct security_operations default_security_ops
= {
41 static inline int __init
verify(struct security_operations
*ops
)
43 /* verify the security_operations structure exists */
46 security_fixup_ops(ops
);
50 static void __init
do_security_initcalls(void)
53 call
= __security_initcall_start
;
54 while (call
< __security_initcall_end
) {
61 * security_init - initializes the security framework
63 * This should be called early in the kernel initialization sequence.
65 int __init
security_init(void)
67 printk(KERN_INFO
"Security Framework initialized\n");
69 security_fixup_ops(&default_security_ops
);
70 security_ops
= &default_security_ops
;
71 do_security_initcalls();
76 void reset_security_ops(void)
78 security_ops
= &default_security_ops
;
81 /* Save user chosen LSM */
82 static int __init
choose_lsm(char *str
)
84 strncpy(chosen_lsm
, str
, SECURITY_NAME_MAX
);
87 __setup("security=", choose_lsm
);
90 * security_module_enable - Load given security module on boot ?
91 * @ops: a pointer to the struct security_operations that is to be checked.
93 * Each LSM must pass this method before registering its own operations
94 * to avoid security registration races. This method may also be used
95 * to check if your LSM is currently loaded during kernel initialization.
98 * -The passed LSM is the one chosen by user at boot time,
99 * -or the passed LSM is configured as the default and the user did not
100 * choose an alternate LSM at boot time.
101 * Otherwise, return false.
103 int __init
security_module_enable(struct security_operations
*ops
)
105 return !strcmp(ops
->name
, chosen_lsm
);
109 * register_security - registers a security framework with the kernel
110 * @ops: a pointer to the struct security_options that is to be registered
112 * This function allows a security module to register itself with the
113 * kernel security subsystem. Some rudimentary checking is done on the @ops
114 * value passed to this function. You'll need to check first if your LSM
115 * is allowed to register its @ops by calling security_module_enable(@ops).
117 * If there is already a security module registered with the kernel,
118 * an error will be returned. Otherwise %0 is returned on success.
120 int __init
register_security(struct security_operations
*ops
)
123 printk(KERN_DEBUG
"%s could not verify "
124 "security_operations structure.\n", __func__
);
128 if (security_ops
!= &default_security_ops
)
136 /* Security operations */
138 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
)
140 #ifdef CONFIG_SECURITY_YAMA_STACKED
142 rc
= yama_ptrace_access_check(child
, mode
);
146 return security_ops
->ptrace_access_check(child
, mode
);
149 int security_ptrace_traceme(struct task_struct
*parent
)
151 #ifdef CONFIG_SECURITY_YAMA_STACKED
153 rc
= yama_ptrace_traceme(parent
);
157 return security_ops
->ptrace_traceme(parent
);
160 int security_capget(struct task_struct
*target
,
161 kernel_cap_t
*effective
,
162 kernel_cap_t
*inheritable
,
163 kernel_cap_t
*permitted
)
165 return security_ops
->capget(target
, effective
, inheritable
, permitted
);
168 int security_capset(struct cred
*new, const struct cred
*old
,
169 const kernel_cap_t
*effective
,
170 const kernel_cap_t
*inheritable
,
171 const kernel_cap_t
*permitted
)
173 return security_ops
->capset(new, old
,
174 effective
, inheritable
, permitted
);
177 int security_capable(const struct cred
*cred
, struct user_namespace
*ns
,
180 return security_ops
->capable(cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
183 int security_capable_noaudit(const struct cred
*cred
, struct user_namespace
*ns
,
186 return security_ops
->capable(cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
189 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
)
191 return security_ops
->quotactl(cmds
, type
, id
, sb
);
194 int security_quota_on(struct dentry
*dentry
)
196 return security_ops
->quota_on(dentry
);
199 int security_syslog(int type
)
201 return security_ops
->syslog(type
);
204 int security_settime(const struct timespec
*ts
, const struct timezone
*tz
)
206 return security_ops
->settime(ts
, tz
);
209 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
211 return security_ops
->vm_enough_memory(mm
, pages
);
214 int security_bprm_set_creds(struct linux_binprm
*bprm
)
216 return security_ops
->bprm_set_creds(bprm
);
219 int security_bprm_check(struct linux_binprm
*bprm
)
223 ret
= security_ops
->bprm_check_security(bprm
);
226 return ima_bprm_check(bprm
);
229 void security_bprm_committing_creds(struct linux_binprm
*bprm
)
231 security_ops
->bprm_committing_creds(bprm
);
234 void security_bprm_committed_creds(struct linux_binprm
*bprm
)
236 security_ops
->bprm_committed_creds(bprm
);
239 int security_bprm_secureexec(struct linux_binprm
*bprm
)
241 return security_ops
->bprm_secureexec(bprm
);
244 int security_sb_alloc(struct super_block
*sb
)
246 return security_ops
->sb_alloc_security(sb
);
249 void security_sb_free(struct super_block
*sb
)
251 security_ops
->sb_free_security(sb
);
254 int security_sb_copy_data(char *orig
, char *copy
)
256 return security_ops
->sb_copy_data(orig
, copy
);
258 EXPORT_SYMBOL(security_sb_copy_data
);
260 int security_sb_remount(struct super_block
*sb
, void *data
)
262 return security_ops
->sb_remount(sb
, data
);
265 int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
267 return security_ops
->sb_kern_mount(sb
, flags
, data
);
270 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
)
272 return security_ops
->sb_show_options(m
, sb
);
275 int security_sb_statfs(struct dentry
*dentry
)
277 return security_ops
->sb_statfs(dentry
);
280 int security_sb_mount(const char *dev_name
, struct path
*path
,
281 const char *type
, unsigned long flags
, void *data
)
283 return security_ops
->sb_mount(dev_name
, path
, type
, flags
, data
);
286 int security_sb_umount(struct vfsmount
*mnt
, int flags
)
288 return security_ops
->sb_umount(mnt
, flags
);
291 int security_sb_pivotroot(struct path
*old_path
, struct path
*new_path
)
293 return security_ops
->sb_pivotroot(old_path
, new_path
);
296 int security_sb_set_mnt_opts(struct super_block
*sb
,
297 struct security_mnt_opts
*opts
,
298 unsigned long kern_flags
,
299 unsigned long *set_kern_flags
)
301 return security_ops
->sb_set_mnt_opts(sb
, opts
, kern_flags
,
304 EXPORT_SYMBOL(security_sb_set_mnt_opts
);
306 int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
307 struct super_block
*newsb
)
309 return security_ops
->sb_clone_mnt_opts(oldsb
, newsb
);
311 EXPORT_SYMBOL(security_sb_clone_mnt_opts
);
313 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
315 return security_ops
->sb_parse_opts_str(options
, opts
);
317 EXPORT_SYMBOL(security_sb_parse_opts_str
);
319 int security_inode_alloc(struct inode
*inode
)
321 inode
->i_security
= NULL
;
322 return security_ops
->inode_alloc_security(inode
);
325 void security_inode_free(struct inode
*inode
)
327 integrity_inode_free(inode
);
328 security_ops
->inode_free_security(inode
);
331 int security_dentry_init_security(struct dentry
*dentry
, int mode
,
332 struct qstr
*name
, void **ctx
,
335 return security_ops
->dentry_init_security(dentry
, mode
, name
,
338 EXPORT_SYMBOL(security_dentry_init_security
);
340 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
341 const struct qstr
*qstr
,
342 const initxattrs initxattrs
, void *fs_data
)
344 struct xattr new_xattrs
[MAX_LSM_EVM_XATTR
+ 1];
345 struct xattr
*lsm_xattr
, *evm_xattr
, *xattr
;
348 if (unlikely(IS_PRIVATE(inode
)))
352 return security_ops
->inode_init_security(inode
, dir
, qstr
,
354 memset(new_xattrs
, 0, sizeof(new_xattrs
));
355 lsm_xattr
= new_xattrs
;
356 ret
= security_ops
->inode_init_security(inode
, dir
, qstr
,
359 &lsm_xattr
->value_len
);
363 evm_xattr
= lsm_xattr
+ 1;
364 ret
= evm_inode_init_security(inode
, lsm_xattr
, evm_xattr
);
367 ret
= initxattrs(inode
, new_xattrs
, fs_data
);
369 for (xattr
= new_xattrs
; xattr
->value
!= NULL
; xattr
++)
371 return (ret
== -EOPNOTSUPP
) ? 0 : ret
;
373 EXPORT_SYMBOL(security_inode_init_security
);
375 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
376 const struct qstr
*qstr
, const char **name
,
377 void **value
, size_t *len
)
379 if (unlikely(IS_PRIVATE(inode
)))
381 return security_ops
->inode_init_security(inode
, dir
, qstr
, name
, value
,
384 EXPORT_SYMBOL(security_old_inode_init_security
);
386 #ifdef CONFIG_SECURITY_PATH
387 int security_path_mknod(struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
390 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
392 return security_ops
->path_mknod(dir
, dentry
, mode
, dev
);
394 EXPORT_SYMBOL(security_path_mknod
);
396 int security_path_mkdir(struct path
*dir
, struct dentry
*dentry
, umode_t mode
)
398 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
400 return security_ops
->path_mkdir(dir
, dentry
, mode
);
402 EXPORT_SYMBOL(security_path_mkdir
);
404 int security_path_rmdir(struct path
*dir
, struct dentry
*dentry
)
406 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
408 return security_ops
->path_rmdir(dir
, dentry
);
411 int security_path_unlink(struct path
*dir
, struct dentry
*dentry
)
413 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
415 return security_ops
->path_unlink(dir
, dentry
);
417 EXPORT_SYMBOL(security_path_unlink
);
419 int security_path_symlink(struct path
*dir
, struct dentry
*dentry
,
420 const char *old_name
)
422 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
424 return security_ops
->path_symlink(dir
, dentry
, old_name
);
427 int security_path_link(struct dentry
*old_dentry
, struct path
*new_dir
,
428 struct dentry
*new_dentry
)
430 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
)))
432 return security_ops
->path_link(old_dentry
, new_dir
, new_dentry
);
435 int security_path_rename(struct path
*old_dir
, struct dentry
*old_dentry
,
436 struct path
*new_dir
, struct dentry
*new_dentry
,
439 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
) ||
440 (new_dentry
->d_inode
&& IS_PRIVATE(new_dentry
->d_inode
))))
442 return security_ops
->path_rename(old_dir
, old_dentry
, new_dir
,
445 EXPORT_SYMBOL(security_path_rename
);
447 int security_path_truncate(struct path
*path
)
449 if (unlikely(IS_PRIVATE(path
->dentry
->d_inode
)))
451 return security_ops
->path_truncate(path
);
454 int security_path_chmod(struct path
*path
, umode_t mode
)
456 if (unlikely(IS_PRIVATE(path
->dentry
->d_inode
)))
458 return security_ops
->path_chmod(path
, mode
);
461 int security_path_chown(struct path
*path
, kuid_t uid
, kgid_t gid
)
463 if (unlikely(IS_PRIVATE(path
->dentry
->d_inode
)))
465 return security_ops
->path_chown(path
, uid
, gid
);
468 int security_path_chroot(struct path
*path
)
470 return security_ops
->path_chroot(path
);
474 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
476 if (unlikely(IS_PRIVATE(dir
)))
478 return security_ops
->inode_create(dir
, dentry
, mode
);
480 EXPORT_SYMBOL_GPL(security_inode_create
);
482 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
483 struct dentry
*new_dentry
)
485 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
)))
487 return security_ops
->inode_link(old_dentry
, dir
, new_dentry
);
490 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
)
492 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
494 return security_ops
->inode_unlink(dir
, dentry
);
497 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
498 const char *old_name
)
500 if (unlikely(IS_PRIVATE(dir
)))
502 return security_ops
->inode_symlink(dir
, dentry
, old_name
);
505 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
507 if (unlikely(IS_PRIVATE(dir
)))
509 return security_ops
->inode_mkdir(dir
, dentry
, mode
);
511 EXPORT_SYMBOL_GPL(security_inode_mkdir
);
513 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
)
515 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
517 return security_ops
->inode_rmdir(dir
, dentry
);
520 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
)
522 if (unlikely(IS_PRIVATE(dir
)))
524 return security_ops
->inode_mknod(dir
, dentry
, mode
, dev
);
527 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
528 struct inode
*new_dir
, struct dentry
*new_dentry
,
531 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
) ||
532 (new_dentry
->d_inode
&& IS_PRIVATE(new_dentry
->d_inode
))))
534 return security_ops
->inode_rename(old_dir
, old_dentry
,
535 new_dir
, new_dentry
);
538 int security_inode_readlink(struct dentry
*dentry
)
540 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
542 return security_ops
->inode_readlink(dentry
);
545 int security_inode_follow_link(struct dentry
*dentry
, struct nameidata
*nd
)
547 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
549 return security_ops
->inode_follow_link(dentry
, nd
);
552 int security_inode_permission(struct inode
*inode
, int mask
)
554 if (unlikely(IS_PRIVATE(inode
)))
556 return security_ops
->inode_permission(inode
, mask
);
559 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
)
563 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
565 ret
= security_ops
->inode_setattr(dentry
, attr
);
568 return evm_inode_setattr(dentry
, attr
);
570 EXPORT_SYMBOL_GPL(security_inode_setattr
);
572 int security_inode_getattr(struct vfsmount
*mnt
, struct dentry
*dentry
)
574 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
576 return security_ops
->inode_getattr(mnt
, dentry
);
579 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
580 const void *value
, size_t size
, int flags
)
584 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
586 ret
= security_ops
->inode_setxattr(dentry
, name
, value
, size
, flags
);
589 ret
= ima_inode_setxattr(dentry
, name
, value
, size
);
592 return evm_inode_setxattr(dentry
, name
, value
, size
);
595 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
596 const void *value
, size_t size
, int flags
)
598 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
600 security_ops
->inode_post_setxattr(dentry
, name
, value
, size
, flags
);
601 evm_inode_post_setxattr(dentry
, name
, value
, size
);
604 int security_inode_getxattr(struct dentry
*dentry
, const char *name
)
606 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
608 return security_ops
->inode_getxattr(dentry
, name
);
611 int security_inode_listxattr(struct dentry
*dentry
)
613 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
615 return security_ops
->inode_listxattr(dentry
);
618 int security_inode_removexattr(struct dentry
*dentry
, const char *name
)
622 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
624 ret
= security_ops
->inode_removexattr(dentry
, name
);
627 ret
= ima_inode_removexattr(dentry
, name
);
630 return evm_inode_removexattr(dentry
, name
);
633 int security_inode_need_killpriv(struct dentry
*dentry
)
635 return security_ops
->inode_need_killpriv(dentry
);
638 int security_inode_killpriv(struct dentry
*dentry
)
640 return security_ops
->inode_killpriv(dentry
);
643 int security_inode_getsecurity(const struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
645 if (unlikely(IS_PRIVATE(inode
)))
647 return security_ops
->inode_getsecurity(inode
, name
, buffer
, alloc
);
650 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
652 if (unlikely(IS_PRIVATE(inode
)))
654 return security_ops
->inode_setsecurity(inode
, name
, value
, size
, flags
);
657 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
659 if (unlikely(IS_PRIVATE(inode
)))
661 return security_ops
->inode_listsecurity(inode
, buffer
, buffer_size
);
663 EXPORT_SYMBOL(security_inode_listsecurity
);
665 void security_inode_getsecid(const struct inode
*inode
, u32
*secid
)
667 security_ops
->inode_getsecid(inode
, secid
);
670 int security_file_permission(struct file
*file
, int mask
)
674 ret
= security_ops
->file_permission(file
, mask
);
678 return fsnotify_perm(file
, mask
);
681 int security_file_alloc(struct file
*file
)
683 return security_ops
->file_alloc_security(file
);
686 void security_file_free(struct file
*file
)
688 security_ops
->file_free_security(file
);
691 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
693 return security_ops
->file_ioctl(file
, cmd
, arg
);
696 static inline unsigned long mmap_prot(struct file
*file
, unsigned long prot
)
699 * Does we have PROT_READ and does the application expect
700 * it to imply PROT_EXEC? If not, nothing to talk about...
702 if ((prot
& (PROT_READ
| PROT_EXEC
)) != PROT_READ
)
704 if (!(current
->personality
& READ_IMPLIES_EXEC
))
707 * if that's an anonymous mapping, let it.
710 return prot
| PROT_EXEC
;
712 * ditto if it's not on noexec mount, except that on !MMU we need
713 * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
715 if (!(file
->f_path
.mnt
->mnt_flags
& MNT_NOEXEC
)) {
717 unsigned long caps
= 0;
718 struct address_space
*mapping
= file
->f_mapping
;
719 if (mapping
&& mapping
->backing_dev_info
)
720 caps
= mapping
->backing_dev_info
->capabilities
;
721 if (!(caps
& BDI_CAP_EXEC_MAP
))
724 return prot
| PROT_EXEC
;
726 /* anything on noexec mount won't get PROT_EXEC */
730 int security_mmap_file(struct file
*file
, unsigned long prot
,
734 ret
= security_ops
->mmap_file(file
, prot
,
735 mmap_prot(file
, prot
), flags
);
738 return ima_file_mmap(file
, prot
);
741 int security_mmap_addr(unsigned long addr
)
743 return security_ops
->mmap_addr(addr
);
746 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
749 return security_ops
->file_mprotect(vma
, reqprot
, prot
);
752 int security_file_lock(struct file
*file
, unsigned int cmd
)
754 return security_ops
->file_lock(file
, cmd
);
757 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
759 return security_ops
->file_fcntl(file
, cmd
, arg
);
762 int security_file_set_fowner(struct file
*file
)
764 return security_ops
->file_set_fowner(file
);
767 int security_file_send_sigiotask(struct task_struct
*tsk
,
768 struct fown_struct
*fown
, int sig
)
770 return security_ops
->file_send_sigiotask(tsk
, fown
, sig
);
773 int security_file_receive(struct file
*file
)
775 return security_ops
->file_receive(file
);
778 int security_file_open(struct file
*file
, const struct cred
*cred
)
782 ret
= security_ops
->file_open(file
, cred
);
786 return fsnotify_perm(file
, MAY_OPEN
);
789 int security_task_create(unsigned long clone_flags
)
791 return security_ops
->task_create(clone_flags
);
794 void security_task_free(struct task_struct
*task
)
796 #ifdef CONFIG_SECURITY_YAMA_STACKED
797 yama_task_free(task
);
799 security_ops
->task_free(task
);
802 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
804 return security_ops
->cred_alloc_blank(cred
, gfp
);
807 void security_cred_free(struct cred
*cred
)
809 security_ops
->cred_free(cred
);
812 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
)
814 return security_ops
->cred_prepare(new, old
, gfp
);
817 void security_transfer_creds(struct cred
*new, const struct cred
*old
)
819 security_ops
->cred_transfer(new, old
);
822 int security_kernel_act_as(struct cred
*new, u32 secid
)
824 return security_ops
->kernel_act_as(new, secid
);
827 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
)
829 return security_ops
->kernel_create_files_as(new, inode
);
832 int security_kernel_module_request(char *kmod_name
)
834 return security_ops
->kernel_module_request(kmod_name
);
837 int security_kernel_module_from_file(struct file
*file
)
841 ret
= security_ops
->kernel_module_from_file(file
);
844 return ima_module_check(file
);
847 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
850 return security_ops
->task_fix_setuid(new, old
, flags
);
853 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
855 return security_ops
->task_setpgid(p
, pgid
);
858 int security_task_getpgid(struct task_struct
*p
)
860 return security_ops
->task_getpgid(p
);
863 int security_task_getsid(struct task_struct
*p
)
865 return security_ops
->task_getsid(p
);
868 void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
870 security_ops
->task_getsecid(p
, secid
);
872 EXPORT_SYMBOL(security_task_getsecid
);
874 int security_task_setnice(struct task_struct
*p
, int nice
)
876 return security_ops
->task_setnice(p
, nice
);
879 int security_task_setioprio(struct task_struct
*p
, int ioprio
)
881 return security_ops
->task_setioprio(p
, ioprio
);
884 int security_task_getioprio(struct task_struct
*p
)
886 return security_ops
->task_getioprio(p
);
889 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
890 struct rlimit
*new_rlim
)
892 return security_ops
->task_setrlimit(p
, resource
, new_rlim
);
895 int security_task_setscheduler(struct task_struct
*p
)
897 return security_ops
->task_setscheduler(p
);
900 int security_task_getscheduler(struct task_struct
*p
)
902 return security_ops
->task_getscheduler(p
);
905 int security_task_movememory(struct task_struct
*p
)
907 return security_ops
->task_movememory(p
);
910 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
913 return security_ops
->task_kill(p
, info
, sig
, secid
);
916 int security_task_wait(struct task_struct
*p
)
918 return security_ops
->task_wait(p
);
921 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
922 unsigned long arg4
, unsigned long arg5
)
924 #ifdef CONFIG_SECURITY_YAMA_STACKED
926 rc
= yama_task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
930 return security_ops
->task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
933 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
935 security_ops
->task_to_inode(p
, inode
);
938 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
)
940 return security_ops
->ipc_permission(ipcp
, flag
);
943 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
945 security_ops
->ipc_getsecid(ipcp
, secid
);
948 int security_msg_msg_alloc(struct msg_msg
*msg
)
950 return security_ops
->msg_msg_alloc_security(msg
);
953 void security_msg_msg_free(struct msg_msg
*msg
)
955 security_ops
->msg_msg_free_security(msg
);
958 int security_msg_queue_alloc(struct msg_queue
*msq
)
960 return security_ops
->msg_queue_alloc_security(msq
);
963 void security_msg_queue_free(struct msg_queue
*msq
)
965 security_ops
->msg_queue_free_security(msq
);
968 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
)
970 return security_ops
->msg_queue_associate(msq
, msqflg
);
973 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
975 return security_ops
->msg_queue_msgctl(msq
, cmd
);
978 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
979 struct msg_msg
*msg
, int msqflg
)
981 return security_ops
->msg_queue_msgsnd(msq
, msg
, msqflg
);
984 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
985 struct task_struct
*target
, long type
, int mode
)
987 return security_ops
->msg_queue_msgrcv(msq
, msg
, target
, type
, mode
);
990 int security_shm_alloc(struct shmid_kernel
*shp
)
992 return security_ops
->shm_alloc_security(shp
);
995 void security_shm_free(struct shmid_kernel
*shp
)
997 security_ops
->shm_free_security(shp
);
1000 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
)
1002 return security_ops
->shm_associate(shp
, shmflg
);
1005 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
1007 return security_ops
->shm_shmctl(shp
, cmd
);
1010 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
)
1012 return security_ops
->shm_shmat(shp
, shmaddr
, shmflg
);
1015 int security_sem_alloc(struct sem_array
*sma
)
1017 return security_ops
->sem_alloc_security(sma
);
1020 void security_sem_free(struct sem_array
*sma
)
1022 security_ops
->sem_free_security(sma
);
1025 int security_sem_associate(struct sem_array
*sma
, int semflg
)
1027 return security_ops
->sem_associate(sma
, semflg
);
1030 int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1032 return security_ops
->sem_semctl(sma
, cmd
);
1035 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
1036 unsigned nsops
, int alter
)
1038 return security_ops
->sem_semop(sma
, sops
, nsops
, alter
);
1041 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1043 if (unlikely(inode
&& IS_PRIVATE(inode
)))
1045 security_ops
->d_instantiate(dentry
, inode
);
1047 EXPORT_SYMBOL(security_d_instantiate
);
1049 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1051 return security_ops
->getprocattr(p
, name
, value
);
1054 int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
)
1056 return security_ops
->setprocattr(p
, name
, value
, size
);
1059 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1061 return security_ops
->netlink_send(sk
, skb
);
1064 int security_ismaclabel(const char *name
)
1066 return security_ops
->ismaclabel(name
);
1068 EXPORT_SYMBOL(security_ismaclabel
);
1070 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1072 return security_ops
->secid_to_secctx(secid
, secdata
, seclen
);
1074 EXPORT_SYMBOL(security_secid_to_secctx
);
1076 int security_secctx_to_secid(const char *secdata
, u32 seclen
, u32
*secid
)
1078 return security_ops
->secctx_to_secid(secdata
, seclen
, secid
);
1080 EXPORT_SYMBOL(security_secctx_to_secid
);
1082 void security_release_secctx(char *secdata
, u32 seclen
)
1084 security_ops
->release_secctx(secdata
, seclen
);
1086 EXPORT_SYMBOL(security_release_secctx
);
1088 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1090 return security_ops
->inode_notifysecctx(inode
, ctx
, ctxlen
);
1092 EXPORT_SYMBOL(security_inode_notifysecctx
);
1094 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1096 return security_ops
->inode_setsecctx(dentry
, ctx
, ctxlen
);
1098 EXPORT_SYMBOL(security_inode_setsecctx
);
1100 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1102 return security_ops
->inode_getsecctx(inode
, ctx
, ctxlen
);
1104 EXPORT_SYMBOL(security_inode_getsecctx
);
1106 #ifdef CONFIG_SECURITY_NETWORK
1108 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
)
1110 return security_ops
->unix_stream_connect(sock
, other
, newsk
);
1112 EXPORT_SYMBOL(security_unix_stream_connect
);
1114 int security_unix_may_send(struct socket
*sock
, struct socket
*other
)
1116 return security_ops
->unix_may_send(sock
, other
);
1118 EXPORT_SYMBOL(security_unix_may_send
);
1120 int security_socket_create(int family
, int type
, int protocol
, int kern
)
1122 return security_ops
->socket_create(family
, type
, protocol
, kern
);
1125 int security_socket_post_create(struct socket
*sock
, int family
,
1126 int type
, int protocol
, int kern
)
1128 return security_ops
->socket_post_create(sock
, family
, type
,
1132 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
)
1134 return security_ops
->socket_bind(sock
, address
, addrlen
);
1137 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
)
1139 return security_ops
->socket_connect(sock
, address
, addrlen
);
1142 int security_socket_listen(struct socket
*sock
, int backlog
)
1144 return security_ops
->socket_listen(sock
, backlog
);
1147 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
)
1149 return security_ops
->socket_accept(sock
, newsock
);
1152 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
)
1154 return security_ops
->socket_sendmsg(sock
, msg
, size
);
1157 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
1158 int size
, int flags
)
1160 return security_ops
->socket_recvmsg(sock
, msg
, size
, flags
);
1163 int security_socket_getsockname(struct socket
*sock
)
1165 return security_ops
->socket_getsockname(sock
);
1168 int security_socket_getpeername(struct socket
*sock
)
1170 return security_ops
->socket_getpeername(sock
);
1173 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
)
1175 return security_ops
->socket_getsockopt(sock
, level
, optname
);
1178 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
)
1180 return security_ops
->socket_setsockopt(sock
, level
, optname
);
1183 int security_socket_shutdown(struct socket
*sock
, int how
)
1185 return security_ops
->socket_shutdown(sock
, how
);
1188 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
)
1190 return security_ops
->socket_sock_rcv_skb(sk
, skb
);
1192 EXPORT_SYMBOL(security_sock_rcv_skb
);
1194 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1195 int __user
*optlen
, unsigned len
)
1197 return security_ops
->socket_getpeersec_stream(sock
, optval
, optlen
, len
);
1200 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
1202 return security_ops
->socket_getpeersec_dgram(sock
, skb
, secid
);
1204 EXPORT_SYMBOL(security_socket_getpeersec_dgram
);
1206 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
1208 return security_ops
->sk_alloc_security(sk
, family
, priority
);
1211 void security_sk_free(struct sock
*sk
)
1213 security_ops
->sk_free_security(sk
);
1216 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
1218 security_ops
->sk_clone_security(sk
, newsk
);
1220 EXPORT_SYMBOL(security_sk_clone
);
1222 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
1224 security_ops
->sk_getsecid(sk
, &fl
->flowi_secid
);
1226 EXPORT_SYMBOL(security_sk_classify_flow
);
1228 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
1230 security_ops
->req_classify_flow(req
, fl
);
1232 EXPORT_SYMBOL(security_req_classify_flow
);
1234 void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
1236 security_ops
->sock_graft(sk
, parent
);
1238 EXPORT_SYMBOL(security_sock_graft
);
1240 int security_inet_conn_request(struct sock
*sk
,
1241 struct sk_buff
*skb
, struct request_sock
*req
)
1243 return security_ops
->inet_conn_request(sk
, skb
, req
);
1245 EXPORT_SYMBOL(security_inet_conn_request
);
1247 void security_inet_csk_clone(struct sock
*newsk
,
1248 const struct request_sock
*req
)
1250 security_ops
->inet_csk_clone(newsk
, req
);
1253 void security_inet_conn_established(struct sock
*sk
,
1254 struct sk_buff
*skb
)
1256 security_ops
->inet_conn_established(sk
, skb
);
1259 int security_secmark_relabel_packet(u32 secid
)
1261 return security_ops
->secmark_relabel_packet(secid
);
1263 EXPORT_SYMBOL(security_secmark_relabel_packet
);
1265 void security_secmark_refcount_inc(void)
1267 security_ops
->secmark_refcount_inc();
1269 EXPORT_SYMBOL(security_secmark_refcount_inc
);
1271 void security_secmark_refcount_dec(void)
1273 security_ops
->secmark_refcount_dec();
1275 EXPORT_SYMBOL(security_secmark_refcount_dec
);
1277 int security_tun_dev_alloc_security(void **security
)
1279 return security_ops
->tun_dev_alloc_security(security
);
1281 EXPORT_SYMBOL(security_tun_dev_alloc_security
);
1283 void security_tun_dev_free_security(void *security
)
1285 security_ops
->tun_dev_free_security(security
);
1287 EXPORT_SYMBOL(security_tun_dev_free_security
);
1289 int security_tun_dev_create(void)
1291 return security_ops
->tun_dev_create();
1293 EXPORT_SYMBOL(security_tun_dev_create
);
1295 int security_tun_dev_attach_queue(void *security
)
1297 return security_ops
->tun_dev_attach_queue(security
);
1299 EXPORT_SYMBOL(security_tun_dev_attach_queue
);
1301 int security_tun_dev_attach(struct sock
*sk
, void *security
)
1303 return security_ops
->tun_dev_attach(sk
, security
);
1305 EXPORT_SYMBOL(security_tun_dev_attach
);
1307 int security_tun_dev_open(void *security
)
1309 return security_ops
->tun_dev_open(security
);
1311 EXPORT_SYMBOL(security_tun_dev_open
);
1313 void security_skb_owned_by(struct sk_buff
*skb
, struct sock
*sk
)
1315 security_ops
->skb_owned_by(skb
, sk
);
1318 #endif /* CONFIG_SECURITY_NETWORK */
1320 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1322 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
,
1323 struct xfrm_user_sec_ctx
*sec_ctx
,
1326 return security_ops
->xfrm_policy_alloc_security(ctxp
, sec_ctx
, gfp
);
1328 EXPORT_SYMBOL(security_xfrm_policy_alloc
);
1330 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
,
1331 struct xfrm_sec_ctx
**new_ctxp
)
1333 return security_ops
->xfrm_policy_clone_security(old_ctx
, new_ctxp
);
1336 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1338 security_ops
->xfrm_policy_free_security(ctx
);
1340 EXPORT_SYMBOL(security_xfrm_policy_free
);
1342 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1344 return security_ops
->xfrm_policy_delete_security(ctx
);
1347 int security_xfrm_state_alloc(struct xfrm_state
*x
,
1348 struct xfrm_user_sec_ctx
*sec_ctx
)
1350 return security_ops
->xfrm_state_alloc(x
, sec_ctx
);
1352 EXPORT_SYMBOL(security_xfrm_state_alloc
);
1354 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1355 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1357 return security_ops
->xfrm_state_alloc_acquire(x
, polsec
, secid
);
1360 int security_xfrm_state_delete(struct xfrm_state
*x
)
1362 return security_ops
->xfrm_state_delete_security(x
);
1364 EXPORT_SYMBOL(security_xfrm_state_delete
);
1366 void security_xfrm_state_free(struct xfrm_state
*x
)
1368 security_ops
->xfrm_state_free_security(x
);
1371 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1373 return security_ops
->xfrm_policy_lookup(ctx
, fl_secid
, dir
);
1376 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1377 struct xfrm_policy
*xp
,
1378 const struct flowi
*fl
)
1380 return security_ops
->xfrm_state_pol_flow_match(x
, xp
, fl
);
1383 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1385 return security_ops
->xfrm_decode_session(skb
, secid
, 1);
1388 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1390 int rc
= security_ops
->xfrm_decode_session(skb
, &fl
->flowi_secid
, 0);
1394 EXPORT_SYMBOL(security_skb_classify_flow
);
1396 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1400 int security_key_alloc(struct key
*key
, const struct cred
*cred
,
1401 unsigned long flags
)
1403 return security_ops
->key_alloc(key
, cred
, flags
);
1406 void security_key_free(struct key
*key
)
1408 security_ops
->key_free(key
);
1411 int security_key_permission(key_ref_t key_ref
,
1412 const struct cred
*cred
, key_perm_t perm
)
1414 return security_ops
->key_permission(key_ref
, cred
, perm
);
1417 int security_key_getsecurity(struct key
*key
, char **_buffer
)
1419 return security_ops
->key_getsecurity(key
, _buffer
);
1422 #endif /* CONFIG_KEYS */
1426 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
)
1428 return security_ops
->audit_rule_init(field
, op
, rulestr
, lsmrule
);
1431 int security_audit_rule_known(struct audit_krule
*krule
)
1433 return security_ops
->audit_rule_known(krule
);
1436 void security_audit_rule_free(void *lsmrule
)
1438 security_ops
->audit_rule_free(lsmrule
);
1441 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1442 struct audit_context
*actx
)
1444 return security_ops
->audit_rule_match(secid
, field
, op
, lsmrule
, actx
);
1447 #endif /* CONFIG_AUDIT */