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/module.h>
16 #include <linux/init.h>
17 #include <linux/kernel.h>
18 #include <linux/security.h>
19 #include <linux/integrity.h>
20 #include <linux/ima.h>
21 #include <linux/evm.h>
22 #include <linux/fsnotify.h>
23 #include <linux/mman.h>
24 #include <linux/mount.h>
25 #include <linux/personality.h>
26 #include <linux/backing-dev.h>
29 #define MAX_LSM_EVM_XATTR 2
31 /* Boot-time LSM user choice */
32 static __initdata
char chosen_lsm
[SECURITY_NAME_MAX
+ 1] =
33 CONFIG_DEFAULT_SECURITY
;
35 static struct security_operations
*security_ops
;
36 static struct security_operations default_security_ops
= {
40 static inline int __init
verify(struct security_operations
*ops
)
42 /* verify the security_operations structure exists */
45 security_fixup_ops(ops
);
49 static void __init
do_security_initcalls(void)
52 call
= __security_initcall_start
;
53 while (call
< __security_initcall_end
) {
60 * security_init - initializes the security framework
62 * This should be called early in the kernel initialization sequence.
64 int __init
security_init(void)
66 printk(KERN_INFO
"Security Framework initialized\n");
68 security_fixup_ops(&default_security_ops
);
69 security_ops
= &default_security_ops
;
70 do_security_initcalls();
75 void reset_security_ops(void)
77 security_ops
= &default_security_ops
;
80 /* Save user chosen LSM */
81 static int __init
choose_lsm(char *str
)
83 strncpy(chosen_lsm
, str
, SECURITY_NAME_MAX
);
86 __setup("security=", choose_lsm
);
89 * security_module_enable - Load given security module on boot ?
90 * @ops: a pointer to the struct security_operations that is to be checked.
92 * Each LSM must pass this method before registering its own operations
93 * to avoid security registration races. This method may also be used
94 * to check if your LSM is currently loaded during kernel initialization.
97 * -The passed LSM is the one chosen by user at boot time,
98 * -or the passed LSM is configured as the default and the user did not
99 * choose an alternate LSM at boot time.
100 * Otherwise, return false.
102 int __init
security_module_enable(struct security_operations
*ops
)
104 return !strcmp(ops
->name
, chosen_lsm
);
108 * register_security - registers a security framework with the kernel
109 * @ops: a pointer to the struct security_options that is to be registered
111 * This function allows a security module to register itself with the
112 * kernel security subsystem. Some rudimentary checking is done on the @ops
113 * value passed to this function. You'll need to check first if your LSM
114 * is allowed to register its @ops by calling security_module_enable(@ops).
116 * If there is already a security module registered with the kernel,
117 * an error will be returned. Otherwise %0 is returned on success.
119 int __init
register_security(struct security_operations
*ops
)
122 printk(KERN_DEBUG
"%s could not verify "
123 "security_operations structure.\n", __func__
);
127 if (security_ops
!= &default_security_ops
)
135 /* Security operations */
137 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
)
139 #ifdef CONFIG_SECURITY_YAMA_STACKED
141 rc
= yama_ptrace_access_check(child
, mode
);
145 return security_ops
->ptrace_access_check(child
, mode
);
148 int security_ptrace_traceme(struct task_struct
*parent
)
150 #ifdef CONFIG_SECURITY_YAMA_STACKED
152 rc
= yama_ptrace_traceme(parent
);
156 return security_ops
->ptrace_traceme(parent
);
159 int security_capget(struct task_struct
*target
,
160 kernel_cap_t
*effective
,
161 kernel_cap_t
*inheritable
,
162 kernel_cap_t
*permitted
)
164 return security_ops
->capget(target
, effective
, inheritable
, permitted
);
167 int security_capset(struct cred
*new, const struct cred
*old
,
168 const kernel_cap_t
*effective
,
169 const kernel_cap_t
*inheritable
,
170 const kernel_cap_t
*permitted
)
172 return security_ops
->capset(new, old
,
173 effective
, inheritable
, permitted
);
176 int security_capable(const struct cred
*cred
, struct user_namespace
*ns
,
179 return security_ops
->capable(cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
182 int security_capable_noaudit(const struct cred
*cred
, struct user_namespace
*ns
,
185 return security_ops
->capable(cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
188 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
)
190 return security_ops
->quotactl(cmds
, type
, id
, sb
);
193 int security_quota_on(struct dentry
*dentry
)
195 return security_ops
->quota_on(dentry
);
198 int security_syslog(int type
)
200 return security_ops
->syslog(type
);
203 int security_settime(const struct timespec
*ts
, const struct timezone
*tz
)
205 return security_ops
->settime(ts
, tz
);
208 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
210 return security_ops
->vm_enough_memory(mm
, pages
);
213 int security_bprm_set_creds(struct linux_binprm
*bprm
)
215 return security_ops
->bprm_set_creds(bprm
);
218 int security_bprm_check(struct linux_binprm
*bprm
)
222 ret
= security_ops
->bprm_check_security(bprm
);
225 return ima_bprm_check(bprm
);
228 void security_bprm_committing_creds(struct linux_binprm
*bprm
)
230 security_ops
->bprm_committing_creds(bprm
);
233 void security_bprm_committed_creds(struct linux_binprm
*bprm
)
235 security_ops
->bprm_committed_creds(bprm
);
238 int security_bprm_secureexec(struct linux_binprm
*bprm
)
240 return security_ops
->bprm_secureexec(bprm
);
243 int security_sb_alloc(struct super_block
*sb
)
245 return security_ops
->sb_alloc_security(sb
);
248 void security_sb_free(struct super_block
*sb
)
250 security_ops
->sb_free_security(sb
);
253 int security_sb_copy_data(char *orig
, char *copy
)
255 return security_ops
->sb_copy_data(orig
, copy
);
257 EXPORT_SYMBOL(security_sb_copy_data
);
259 int security_sb_remount(struct super_block
*sb
, void *data
)
261 return security_ops
->sb_remount(sb
, data
);
264 int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
266 return security_ops
->sb_kern_mount(sb
, flags
, data
);
269 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
)
271 return security_ops
->sb_show_options(m
, sb
);
274 int security_sb_statfs(struct dentry
*dentry
)
276 return security_ops
->sb_statfs(dentry
);
279 int security_sb_mount(const char *dev_name
, struct path
*path
,
280 const char *type
, unsigned long flags
, void *data
)
282 return security_ops
->sb_mount(dev_name
, path
, type
, flags
, data
);
285 int security_sb_umount(struct vfsmount
*mnt
, int flags
)
287 return security_ops
->sb_umount(mnt
, flags
);
290 int security_sb_pivotroot(struct path
*old_path
, struct path
*new_path
)
292 return security_ops
->sb_pivotroot(old_path
, new_path
);
295 int security_sb_set_mnt_opts(struct super_block
*sb
,
296 struct security_mnt_opts
*opts
)
298 return security_ops
->sb_set_mnt_opts(sb
, opts
);
300 EXPORT_SYMBOL(security_sb_set_mnt_opts
);
302 void security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
303 struct super_block
*newsb
)
305 security_ops
->sb_clone_mnt_opts(oldsb
, newsb
);
307 EXPORT_SYMBOL(security_sb_clone_mnt_opts
);
309 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
311 return security_ops
->sb_parse_opts_str(options
, opts
);
313 EXPORT_SYMBOL(security_sb_parse_opts_str
);
315 int security_inode_alloc(struct inode
*inode
)
317 inode
->i_security
= NULL
;
318 return security_ops
->inode_alloc_security(inode
);
321 void security_inode_free(struct inode
*inode
)
323 integrity_inode_free(inode
);
324 security_ops
->inode_free_security(inode
);
327 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
328 const struct qstr
*qstr
,
329 const initxattrs initxattrs
, void *fs_data
)
331 struct xattr new_xattrs
[MAX_LSM_EVM_XATTR
+ 1];
332 struct xattr
*lsm_xattr
, *evm_xattr
, *xattr
;
335 if (unlikely(IS_PRIVATE(inode
)))
338 memset(new_xattrs
, 0, sizeof new_xattrs
);
340 return security_ops
->inode_init_security(inode
, dir
, qstr
,
342 lsm_xattr
= new_xattrs
;
343 ret
= security_ops
->inode_init_security(inode
, dir
, qstr
,
346 &lsm_xattr
->value_len
);
350 evm_xattr
= lsm_xattr
+ 1;
351 ret
= evm_inode_init_security(inode
, lsm_xattr
, evm_xattr
);
354 ret
= initxattrs(inode
, new_xattrs
, fs_data
);
356 for (xattr
= new_xattrs
; xattr
->name
!= NULL
; xattr
++) {
360 return (ret
== -EOPNOTSUPP
) ? 0 : ret
;
362 EXPORT_SYMBOL(security_inode_init_security
);
364 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
365 const struct qstr
*qstr
, char **name
,
366 void **value
, size_t *len
)
368 if (unlikely(IS_PRIVATE(inode
)))
370 return security_ops
->inode_init_security(inode
, dir
, qstr
, name
, value
,
373 EXPORT_SYMBOL(security_old_inode_init_security
);
375 #ifdef CONFIG_SECURITY_PATH
376 int security_path_mknod(struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
379 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
381 return security_ops
->path_mknod(dir
, dentry
, mode
, dev
);
383 EXPORT_SYMBOL(security_path_mknod
);
385 int security_path_mkdir(struct path
*dir
, struct dentry
*dentry
, umode_t mode
)
387 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
389 return security_ops
->path_mkdir(dir
, dentry
, mode
);
391 EXPORT_SYMBOL(security_path_mkdir
);
393 int security_path_rmdir(struct path
*dir
, struct dentry
*dentry
)
395 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
397 return security_ops
->path_rmdir(dir
, dentry
);
400 int security_path_unlink(struct path
*dir
, struct dentry
*dentry
)
402 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
404 return security_ops
->path_unlink(dir
, dentry
);
406 EXPORT_SYMBOL(security_path_unlink
);
408 int security_path_symlink(struct path
*dir
, struct dentry
*dentry
,
409 const char *old_name
)
411 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
413 return security_ops
->path_symlink(dir
, dentry
, old_name
);
416 int security_path_link(struct dentry
*old_dentry
, struct path
*new_dir
,
417 struct dentry
*new_dentry
)
419 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
)))
421 return security_ops
->path_link(old_dentry
, new_dir
, new_dentry
);
424 int security_path_rename(struct path
*old_dir
, struct dentry
*old_dentry
,
425 struct path
*new_dir
, struct dentry
*new_dentry
)
427 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
) ||
428 (new_dentry
->d_inode
&& IS_PRIVATE(new_dentry
->d_inode
))))
430 return security_ops
->path_rename(old_dir
, old_dentry
, new_dir
,
433 EXPORT_SYMBOL(security_path_rename
);
435 int security_path_truncate(struct path
*path
)
437 if (unlikely(IS_PRIVATE(path
->dentry
->d_inode
)))
439 return security_ops
->path_truncate(path
);
442 int security_path_chmod(struct path
*path
, umode_t mode
)
444 if (unlikely(IS_PRIVATE(path
->dentry
->d_inode
)))
446 return security_ops
->path_chmod(path
, mode
);
449 int security_path_chown(struct path
*path
, kuid_t uid
, kgid_t gid
)
451 if (unlikely(IS_PRIVATE(path
->dentry
->d_inode
)))
453 return security_ops
->path_chown(path
, uid
, gid
);
456 int security_path_chroot(struct path
*path
)
458 return security_ops
->path_chroot(path
);
462 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
464 if (unlikely(IS_PRIVATE(dir
)))
466 return security_ops
->inode_create(dir
, dentry
, mode
);
468 EXPORT_SYMBOL_GPL(security_inode_create
);
470 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
471 struct dentry
*new_dentry
)
473 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
)))
475 return security_ops
->inode_link(old_dentry
, dir
, new_dentry
);
478 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
)
480 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
482 return security_ops
->inode_unlink(dir
, dentry
);
485 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
486 const char *old_name
)
488 if (unlikely(IS_PRIVATE(dir
)))
490 return security_ops
->inode_symlink(dir
, dentry
, old_name
);
493 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
495 if (unlikely(IS_PRIVATE(dir
)))
497 return security_ops
->inode_mkdir(dir
, dentry
, mode
);
499 EXPORT_SYMBOL_GPL(security_inode_mkdir
);
501 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
)
503 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
505 return security_ops
->inode_rmdir(dir
, dentry
);
508 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
)
510 if (unlikely(IS_PRIVATE(dir
)))
512 return security_ops
->inode_mknod(dir
, dentry
, mode
, dev
);
515 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
516 struct inode
*new_dir
, struct dentry
*new_dentry
)
518 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
) ||
519 (new_dentry
->d_inode
&& IS_PRIVATE(new_dentry
->d_inode
))))
521 return security_ops
->inode_rename(old_dir
, old_dentry
,
522 new_dir
, new_dentry
);
525 int security_inode_readlink(struct dentry
*dentry
)
527 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
529 return security_ops
->inode_readlink(dentry
);
532 int security_inode_follow_link(struct dentry
*dentry
, struct nameidata
*nd
)
534 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
536 return security_ops
->inode_follow_link(dentry
, nd
);
539 int security_inode_permission(struct inode
*inode
, int mask
)
541 if (unlikely(IS_PRIVATE(inode
)))
543 return security_ops
->inode_permission(inode
, mask
);
546 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
)
550 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
552 ret
= security_ops
->inode_setattr(dentry
, attr
);
555 return evm_inode_setattr(dentry
, attr
);
557 EXPORT_SYMBOL_GPL(security_inode_setattr
);
559 int security_inode_getattr(struct vfsmount
*mnt
, struct dentry
*dentry
)
561 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
563 return security_ops
->inode_getattr(mnt
, dentry
);
566 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
567 const void *value
, size_t size
, int flags
)
571 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
573 ret
= security_ops
->inode_setxattr(dentry
, name
, value
, size
, flags
);
576 ret
= ima_inode_setxattr(dentry
, name
, value
, size
);
579 return evm_inode_setxattr(dentry
, name
, value
, size
);
582 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
583 const void *value
, size_t size
, int flags
)
585 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
587 security_ops
->inode_post_setxattr(dentry
, name
, value
, size
, flags
);
588 evm_inode_post_setxattr(dentry
, name
, value
, size
);
591 int security_inode_getxattr(struct dentry
*dentry
, const char *name
)
593 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
595 return security_ops
->inode_getxattr(dentry
, name
);
598 int security_inode_listxattr(struct dentry
*dentry
)
600 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
602 return security_ops
->inode_listxattr(dentry
);
605 int security_inode_removexattr(struct dentry
*dentry
, const char *name
)
609 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
611 ret
= security_ops
->inode_removexattr(dentry
, name
);
614 ret
= ima_inode_removexattr(dentry
, name
);
617 return evm_inode_removexattr(dentry
, name
);
620 int security_inode_need_killpriv(struct dentry
*dentry
)
622 return security_ops
->inode_need_killpriv(dentry
);
625 int security_inode_killpriv(struct dentry
*dentry
)
627 return security_ops
->inode_killpriv(dentry
);
630 int security_inode_getsecurity(const struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
632 if (unlikely(IS_PRIVATE(inode
)))
634 return security_ops
->inode_getsecurity(inode
, name
, buffer
, alloc
);
637 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
639 if (unlikely(IS_PRIVATE(inode
)))
641 return security_ops
->inode_setsecurity(inode
, name
, value
, size
, flags
);
644 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
646 if (unlikely(IS_PRIVATE(inode
)))
648 return security_ops
->inode_listsecurity(inode
, buffer
, buffer_size
);
651 void security_inode_getsecid(const struct inode
*inode
, u32
*secid
)
653 security_ops
->inode_getsecid(inode
, secid
);
656 int security_file_permission(struct file
*file
, int mask
)
660 ret
= security_ops
->file_permission(file
, mask
);
664 return fsnotify_perm(file
, mask
);
667 int security_file_alloc(struct file
*file
)
669 return security_ops
->file_alloc_security(file
);
672 void security_file_free(struct file
*file
)
674 security_ops
->file_free_security(file
);
677 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
679 return security_ops
->file_ioctl(file
, cmd
, arg
);
682 static inline unsigned long mmap_prot(struct file
*file
, unsigned long prot
)
685 * Does we have PROT_READ and does the application expect
686 * it to imply PROT_EXEC? If not, nothing to talk about...
688 if ((prot
& (PROT_READ
| PROT_EXEC
)) != PROT_READ
)
690 if (!(current
->personality
& READ_IMPLIES_EXEC
))
693 * if that's an anonymous mapping, let it.
696 return prot
| PROT_EXEC
;
698 * ditto if it's not on noexec mount, except that on !MMU we need
699 * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
701 if (!(file
->f_path
.mnt
->mnt_flags
& MNT_NOEXEC
)) {
703 unsigned long caps
= 0;
704 struct address_space
*mapping
= file
->f_mapping
;
705 if (mapping
&& mapping
->backing_dev_info
)
706 caps
= mapping
->backing_dev_info
->capabilities
;
707 if (!(caps
& BDI_CAP_EXEC_MAP
))
710 return prot
| PROT_EXEC
;
712 /* anything on noexec mount won't get PROT_EXEC */
716 int security_mmap_file(struct file
*file
, unsigned long prot
,
720 ret
= security_ops
->mmap_file(file
, prot
,
721 mmap_prot(file
, prot
), flags
);
724 return ima_file_mmap(file
, prot
);
727 int security_mmap_addr(unsigned long addr
)
729 return security_ops
->mmap_addr(addr
);
732 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
735 return security_ops
->file_mprotect(vma
, reqprot
, prot
);
738 int security_file_lock(struct file
*file
, unsigned int cmd
)
740 return security_ops
->file_lock(file
, cmd
);
743 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
745 return security_ops
->file_fcntl(file
, cmd
, arg
);
748 int security_file_set_fowner(struct file
*file
)
750 return security_ops
->file_set_fowner(file
);
753 int security_file_send_sigiotask(struct task_struct
*tsk
,
754 struct fown_struct
*fown
, int sig
)
756 return security_ops
->file_send_sigiotask(tsk
, fown
, sig
);
759 int security_file_receive(struct file
*file
)
761 return security_ops
->file_receive(file
);
764 int security_file_open(struct file
*file
, const struct cred
*cred
)
768 ret
= security_ops
->file_open(file
, cred
);
772 return fsnotify_perm(file
, MAY_OPEN
);
775 int security_task_create(unsigned long clone_flags
)
777 return security_ops
->task_create(clone_flags
);
780 void security_task_free(struct task_struct
*task
)
782 #ifdef CONFIG_SECURITY_YAMA_STACKED
783 yama_task_free(task
);
785 security_ops
->task_free(task
);
788 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
790 return security_ops
->cred_alloc_blank(cred
, gfp
);
793 void security_cred_free(struct cred
*cred
)
795 security_ops
->cred_free(cred
);
798 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
)
800 return security_ops
->cred_prepare(new, old
, gfp
);
803 void security_transfer_creds(struct cred
*new, const struct cred
*old
)
805 security_ops
->cred_transfer(new, old
);
808 int security_kernel_act_as(struct cred
*new, u32 secid
)
810 return security_ops
->kernel_act_as(new, secid
);
813 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
)
815 return security_ops
->kernel_create_files_as(new, inode
);
818 int security_kernel_module_request(char *kmod_name
)
820 return security_ops
->kernel_module_request(kmod_name
);
823 int security_kernel_module_from_file(struct file
*file
)
827 ret
= security_ops
->kernel_module_from_file(file
);
830 return ima_module_check(file
);
833 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
836 return security_ops
->task_fix_setuid(new, old
, flags
);
839 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
841 return security_ops
->task_setpgid(p
, pgid
);
844 int security_task_getpgid(struct task_struct
*p
)
846 return security_ops
->task_getpgid(p
);
849 int security_task_getsid(struct task_struct
*p
)
851 return security_ops
->task_getsid(p
);
854 void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
856 security_ops
->task_getsecid(p
, secid
);
858 EXPORT_SYMBOL(security_task_getsecid
);
860 int security_task_setnice(struct task_struct
*p
, int nice
)
862 return security_ops
->task_setnice(p
, nice
);
865 int security_task_setioprio(struct task_struct
*p
, int ioprio
)
867 return security_ops
->task_setioprio(p
, ioprio
);
870 int security_task_getioprio(struct task_struct
*p
)
872 return security_ops
->task_getioprio(p
);
875 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
876 struct rlimit
*new_rlim
)
878 return security_ops
->task_setrlimit(p
, resource
, new_rlim
);
881 int security_task_setscheduler(struct task_struct
*p
)
883 return security_ops
->task_setscheduler(p
);
886 int security_task_getscheduler(struct task_struct
*p
)
888 return security_ops
->task_getscheduler(p
);
891 int security_task_movememory(struct task_struct
*p
)
893 return security_ops
->task_movememory(p
);
896 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
899 return security_ops
->task_kill(p
, info
, sig
, secid
);
902 int security_task_wait(struct task_struct
*p
)
904 return security_ops
->task_wait(p
);
907 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
908 unsigned long arg4
, unsigned long arg5
)
910 #ifdef CONFIG_SECURITY_YAMA_STACKED
912 rc
= yama_task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
916 return security_ops
->task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
919 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
921 security_ops
->task_to_inode(p
, inode
);
924 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
)
926 return security_ops
->ipc_permission(ipcp
, flag
);
929 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
931 security_ops
->ipc_getsecid(ipcp
, secid
);
934 int security_msg_msg_alloc(struct msg_msg
*msg
)
936 return security_ops
->msg_msg_alloc_security(msg
);
939 void security_msg_msg_free(struct msg_msg
*msg
)
941 security_ops
->msg_msg_free_security(msg
);
944 int security_msg_queue_alloc(struct msg_queue
*msq
)
946 return security_ops
->msg_queue_alloc_security(msq
);
949 void security_msg_queue_free(struct msg_queue
*msq
)
951 security_ops
->msg_queue_free_security(msq
);
954 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
)
956 return security_ops
->msg_queue_associate(msq
, msqflg
);
959 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
961 return security_ops
->msg_queue_msgctl(msq
, cmd
);
964 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
965 struct msg_msg
*msg
, int msqflg
)
967 return security_ops
->msg_queue_msgsnd(msq
, msg
, msqflg
);
970 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
971 struct task_struct
*target
, long type
, int mode
)
973 return security_ops
->msg_queue_msgrcv(msq
, msg
, target
, type
, mode
);
976 int security_shm_alloc(struct shmid_kernel
*shp
)
978 return security_ops
->shm_alloc_security(shp
);
981 void security_shm_free(struct shmid_kernel
*shp
)
983 security_ops
->shm_free_security(shp
);
986 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
)
988 return security_ops
->shm_associate(shp
, shmflg
);
991 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
993 return security_ops
->shm_shmctl(shp
, cmd
);
996 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
)
998 return security_ops
->shm_shmat(shp
, shmaddr
, shmflg
);
1001 int security_sem_alloc(struct sem_array
*sma
)
1003 return security_ops
->sem_alloc_security(sma
);
1006 void security_sem_free(struct sem_array
*sma
)
1008 security_ops
->sem_free_security(sma
);
1011 int security_sem_associate(struct sem_array
*sma
, int semflg
)
1013 return security_ops
->sem_associate(sma
, semflg
);
1016 int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1018 return security_ops
->sem_semctl(sma
, cmd
);
1021 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
1022 unsigned nsops
, int alter
)
1024 return security_ops
->sem_semop(sma
, sops
, nsops
, alter
);
1027 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1029 if (unlikely(inode
&& IS_PRIVATE(inode
)))
1031 security_ops
->d_instantiate(dentry
, inode
);
1033 EXPORT_SYMBOL(security_d_instantiate
);
1035 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1037 return security_ops
->getprocattr(p
, name
, value
);
1040 int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
)
1042 return security_ops
->setprocattr(p
, name
, value
, size
);
1045 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1047 return security_ops
->netlink_send(sk
, skb
);
1050 int security_secid_to_secctx(u32 secid
, char **secdata
, u32
*seclen
)
1052 return security_ops
->secid_to_secctx(secid
, secdata
, seclen
);
1054 EXPORT_SYMBOL(security_secid_to_secctx
);
1056 int security_secctx_to_secid(const char *secdata
, u32 seclen
, u32
*secid
)
1058 return security_ops
->secctx_to_secid(secdata
, seclen
, secid
);
1060 EXPORT_SYMBOL(security_secctx_to_secid
);
1062 void security_release_secctx(char *secdata
, u32 seclen
)
1064 security_ops
->release_secctx(secdata
, seclen
);
1066 EXPORT_SYMBOL(security_release_secctx
);
1068 int security_inode_notifysecctx(struct inode
*inode
, void *ctx
, u32 ctxlen
)
1070 return security_ops
->inode_notifysecctx(inode
, ctx
, ctxlen
);
1072 EXPORT_SYMBOL(security_inode_notifysecctx
);
1074 int security_inode_setsecctx(struct dentry
*dentry
, void *ctx
, u32 ctxlen
)
1076 return security_ops
->inode_setsecctx(dentry
, ctx
, ctxlen
);
1078 EXPORT_SYMBOL(security_inode_setsecctx
);
1080 int security_inode_getsecctx(struct inode
*inode
, void **ctx
, u32
*ctxlen
)
1082 return security_ops
->inode_getsecctx(inode
, ctx
, ctxlen
);
1084 EXPORT_SYMBOL(security_inode_getsecctx
);
1086 #ifdef CONFIG_SECURITY_NETWORK
1088 int security_unix_stream_connect(struct sock
*sock
, struct sock
*other
, struct sock
*newsk
)
1090 return security_ops
->unix_stream_connect(sock
, other
, newsk
);
1092 EXPORT_SYMBOL(security_unix_stream_connect
);
1094 int security_unix_may_send(struct socket
*sock
, struct socket
*other
)
1096 return security_ops
->unix_may_send(sock
, other
);
1098 EXPORT_SYMBOL(security_unix_may_send
);
1100 int security_socket_create(int family
, int type
, int protocol
, int kern
)
1102 return security_ops
->socket_create(family
, type
, protocol
, kern
);
1105 int security_socket_post_create(struct socket
*sock
, int family
,
1106 int type
, int protocol
, int kern
)
1108 return security_ops
->socket_post_create(sock
, family
, type
,
1112 int security_socket_bind(struct socket
*sock
, struct sockaddr
*address
, int addrlen
)
1114 return security_ops
->socket_bind(sock
, address
, addrlen
);
1117 int security_socket_connect(struct socket
*sock
, struct sockaddr
*address
, int addrlen
)
1119 return security_ops
->socket_connect(sock
, address
, addrlen
);
1122 int security_socket_listen(struct socket
*sock
, int backlog
)
1124 return security_ops
->socket_listen(sock
, backlog
);
1127 int security_socket_accept(struct socket
*sock
, struct socket
*newsock
)
1129 return security_ops
->socket_accept(sock
, newsock
);
1132 int security_socket_sendmsg(struct socket
*sock
, struct msghdr
*msg
, int size
)
1134 return security_ops
->socket_sendmsg(sock
, msg
, size
);
1137 int security_socket_recvmsg(struct socket
*sock
, struct msghdr
*msg
,
1138 int size
, int flags
)
1140 return security_ops
->socket_recvmsg(sock
, msg
, size
, flags
);
1143 int security_socket_getsockname(struct socket
*sock
)
1145 return security_ops
->socket_getsockname(sock
);
1148 int security_socket_getpeername(struct socket
*sock
)
1150 return security_ops
->socket_getpeername(sock
);
1153 int security_socket_getsockopt(struct socket
*sock
, int level
, int optname
)
1155 return security_ops
->socket_getsockopt(sock
, level
, optname
);
1158 int security_socket_setsockopt(struct socket
*sock
, int level
, int optname
)
1160 return security_ops
->socket_setsockopt(sock
, level
, optname
);
1163 int security_socket_shutdown(struct socket
*sock
, int how
)
1165 return security_ops
->socket_shutdown(sock
, how
);
1168 int security_sock_rcv_skb(struct sock
*sk
, struct sk_buff
*skb
)
1170 return security_ops
->socket_sock_rcv_skb(sk
, skb
);
1172 EXPORT_SYMBOL(security_sock_rcv_skb
);
1174 int security_socket_getpeersec_stream(struct socket
*sock
, char __user
*optval
,
1175 int __user
*optlen
, unsigned len
)
1177 return security_ops
->socket_getpeersec_stream(sock
, optval
, optlen
, len
);
1180 int security_socket_getpeersec_dgram(struct socket
*sock
, struct sk_buff
*skb
, u32
*secid
)
1182 return security_ops
->socket_getpeersec_dgram(sock
, skb
, secid
);
1184 EXPORT_SYMBOL(security_socket_getpeersec_dgram
);
1186 int security_sk_alloc(struct sock
*sk
, int family
, gfp_t priority
)
1188 return security_ops
->sk_alloc_security(sk
, family
, priority
);
1191 void security_sk_free(struct sock
*sk
)
1193 security_ops
->sk_free_security(sk
);
1196 void security_sk_clone(const struct sock
*sk
, struct sock
*newsk
)
1198 security_ops
->sk_clone_security(sk
, newsk
);
1200 EXPORT_SYMBOL(security_sk_clone
);
1202 void security_sk_classify_flow(struct sock
*sk
, struct flowi
*fl
)
1204 security_ops
->sk_getsecid(sk
, &fl
->flowi_secid
);
1206 EXPORT_SYMBOL(security_sk_classify_flow
);
1208 void security_req_classify_flow(const struct request_sock
*req
, struct flowi
*fl
)
1210 security_ops
->req_classify_flow(req
, fl
);
1212 EXPORT_SYMBOL(security_req_classify_flow
);
1214 void security_sock_graft(struct sock
*sk
, struct socket
*parent
)
1216 security_ops
->sock_graft(sk
, parent
);
1218 EXPORT_SYMBOL(security_sock_graft
);
1220 int security_inet_conn_request(struct sock
*sk
,
1221 struct sk_buff
*skb
, struct request_sock
*req
)
1223 return security_ops
->inet_conn_request(sk
, skb
, req
);
1225 EXPORT_SYMBOL(security_inet_conn_request
);
1227 void security_inet_csk_clone(struct sock
*newsk
,
1228 const struct request_sock
*req
)
1230 security_ops
->inet_csk_clone(newsk
, req
);
1233 void security_inet_conn_established(struct sock
*sk
,
1234 struct sk_buff
*skb
)
1236 security_ops
->inet_conn_established(sk
, skb
);
1239 int security_secmark_relabel_packet(u32 secid
)
1241 return security_ops
->secmark_relabel_packet(secid
);
1243 EXPORT_SYMBOL(security_secmark_relabel_packet
);
1245 void security_secmark_refcount_inc(void)
1247 security_ops
->secmark_refcount_inc();
1249 EXPORT_SYMBOL(security_secmark_refcount_inc
);
1251 void security_secmark_refcount_dec(void)
1253 security_ops
->secmark_refcount_dec();
1255 EXPORT_SYMBOL(security_secmark_refcount_dec
);
1257 int security_tun_dev_alloc_security(void **security
)
1259 return security_ops
->tun_dev_alloc_security(security
);
1261 EXPORT_SYMBOL(security_tun_dev_alloc_security
);
1263 void security_tun_dev_free_security(void *security
)
1265 security_ops
->tun_dev_free_security(security
);
1267 EXPORT_SYMBOL(security_tun_dev_free_security
);
1269 int security_tun_dev_create(void)
1271 return security_ops
->tun_dev_create();
1273 EXPORT_SYMBOL(security_tun_dev_create
);
1275 int security_tun_dev_attach_queue(void *security
)
1277 return security_ops
->tun_dev_attach_queue(security
);
1279 EXPORT_SYMBOL(security_tun_dev_attach_queue
);
1281 int security_tun_dev_attach(struct sock
*sk
, void *security
)
1283 return security_ops
->tun_dev_attach(sk
, security
);
1285 EXPORT_SYMBOL(security_tun_dev_attach
);
1287 int security_tun_dev_open(void *security
)
1289 return security_ops
->tun_dev_open(security
);
1291 EXPORT_SYMBOL(security_tun_dev_open
);
1293 #endif /* CONFIG_SECURITY_NETWORK */
1295 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1297 int security_xfrm_policy_alloc(struct xfrm_sec_ctx
**ctxp
, struct xfrm_user_sec_ctx
*sec_ctx
)
1299 return security_ops
->xfrm_policy_alloc_security(ctxp
, sec_ctx
);
1301 EXPORT_SYMBOL(security_xfrm_policy_alloc
);
1303 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
,
1304 struct xfrm_sec_ctx
**new_ctxp
)
1306 return security_ops
->xfrm_policy_clone_security(old_ctx
, new_ctxp
);
1309 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1311 security_ops
->xfrm_policy_free_security(ctx
);
1313 EXPORT_SYMBOL(security_xfrm_policy_free
);
1315 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1317 return security_ops
->xfrm_policy_delete_security(ctx
);
1320 int security_xfrm_state_alloc(struct xfrm_state
*x
, struct xfrm_user_sec_ctx
*sec_ctx
)
1322 return security_ops
->xfrm_state_alloc_security(x
, sec_ctx
, 0);
1324 EXPORT_SYMBOL(security_xfrm_state_alloc
);
1326 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1327 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1332 * We want the context to be taken from secid which is usually
1335 return security_ops
->xfrm_state_alloc_security(x
, NULL
, secid
);
1338 int security_xfrm_state_delete(struct xfrm_state
*x
)
1340 return security_ops
->xfrm_state_delete_security(x
);
1342 EXPORT_SYMBOL(security_xfrm_state_delete
);
1344 void security_xfrm_state_free(struct xfrm_state
*x
)
1346 security_ops
->xfrm_state_free_security(x
);
1349 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1351 return security_ops
->xfrm_policy_lookup(ctx
, fl_secid
, dir
);
1354 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1355 struct xfrm_policy
*xp
,
1356 const struct flowi
*fl
)
1358 return security_ops
->xfrm_state_pol_flow_match(x
, xp
, fl
);
1361 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1363 return security_ops
->xfrm_decode_session(skb
, secid
, 1);
1366 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1368 int rc
= security_ops
->xfrm_decode_session(skb
, &fl
->flowi_secid
, 0);
1372 EXPORT_SYMBOL(security_skb_classify_flow
);
1374 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1378 int security_key_alloc(struct key
*key
, const struct cred
*cred
,
1379 unsigned long flags
)
1381 return security_ops
->key_alloc(key
, cred
, flags
);
1384 void security_key_free(struct key
*key
)
1386 security_ops
->key_free(key
);
1389 int security_key_permission(key_ref_t key_ref
,
1390 const struct cred
*cred
, key_perm_t perm
)
1392 return security_ops
->key_permission(key_ref
, cred
, perm
);
1395 int security_key_getsecurity(struct key
*key
, char **_buffer
)
1397 return security_ops
->key_getsecurity(key
, _buffer
);
1400 #endif /* CONFIG_KEYS */
1404 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
)
1406 return security_ops
->audit_rule_init(field
, op
, rulestr
, lsmrule
);
1409 int security_audit_rule_known(struct audit_krule
*krule
)
1411 return security_ops
->audit_rule_known(krule
);
1414 void security_audit_rule_free(void *lsmrule
)
1416 security_ops
->audit_rule_free(lsmrule
);
1419 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1420 struct audit_context
*actx
)
1422 return security_ops
->audit_rule_match(secid
, field
, op
, lsmrule
, actx
);
1425 #endif /* CONFIG_AUDIT */