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_binder_set_context_mgr(struct task_struct
*mgr
)
139 return security_ops
->binder_set_context_mgr(mgr
);
142 int security_binder_transaction(struct task_struct
*from
, struct task_struct
*to
)
144 return security_ops
->binder_transaction(from
, to
);
147 int security_binder_transfer_binder(struct task_struct
*from
, struct task_struct
*to
)
149 return security_ops
->binder_transfer_binder(from
, to
);
152 int security_binder_transfer_file(struct task_struct
*from
, struct task_struct
*to
, struct file
*file
)
154 return security_ops
->binder_transfer_file(from
, to
, file
);
157 int security_ptrace_access_check(struct task_struct
*child
, unsigned int mode
)
159 #ifdef CONFIG_SECURITY_YAMA_STACKED
161 rc
= yama_ptrace_access_check(child
, mode
);
165 return security_ops
->ptrace_access_check(child
, mode
);
168 int security_ptrace_traceme(struct task_struct
*parent
)
170 #ifdef CONFIG_SECURITY_YAMA_STACKED
172 rc
= yama_ptrace_traceme(parent
);
176 return security_ops
->ptrace_traceme(parent
);
179 int security_capget(struct task_struct
*target
,
180 kernel_cap_t
*effective
,
181 kernel_cap_t
*inheritable
,
182 kernel_cap_t
*permitted
)
184 return security_ops
->capget(target
, effective
, inheritable
, permitted
);
187 int security_capset(struct cred
*new, const struct cred
*old
,
188 const kernel_cap_t
*effective
,
189 const kernel_cap_t
*inheritable
,
190 const kernel_cap_t
*permitted
)
192 return security_ops
->capset(new, old
,
193 effective
, inheritable
, permitted
);
196 int security_capable(const struct cred
*cred
, struct user_namespace
*ns
,
199 return security_ops
->capable(cred
, ns
, cap
, SECURITY_CAP_AUDIT
);
202 int security_capable_noaudit(const struct cred
*cred
, struct user_namespace
*ns
,
205 return security_ops
->capable(cred
, ns
, cap
, SECURITY_CAP_NOAUDIT
);
208 int security_quotactl(int cmds
, int type
, int id
, struct super_block
*sb
)
210 return security_ops
->quotactl(cmds
, type
, id
, sb
);
213 int security_quota_on(struct dentry
*dentry
)
215 return security_ops
->quota_on(dentry
);
218 int security_syslog(int type
)
220 return security_ops
->syslog(type
);
223 int security_settime(const struct timespec
*ts
, const struct timezone
*tz
)
225 return security_ops
->settime(ts
, tz
);
228 int security_vm_enough_memory_mm(struct mm_struct
*mm
, long pages
)
230 return security_ops
->vm_enough_memory(mm
, pages
);
233 int security_bprm_set_creds(struct linux_binprm
*bprm
)
235 return security_ops
->bprm_set_creds(bprm
);
238 int security_bprm_check(struct linux_binprm
*bprm
)
242 ret
= security_ops
->bprm_check_security(bprm
);
245 return ima_bprm_check(bprm
);
248 void security_bprm_committing_creds(struct linux_binprm
*bprm
)
250 security_ops
->bprm_committing_creds(bprm
);
253 void security_bprm_committed_creds(struct linux_binprm
*bprm
)
255 security_ops
->bprm_committed_creds(bprm
);
258 int security_bprm_secureexec(struct linux_binprm
*bprm
)
260 return security_ops
->bprm_secureexec(bprm
);
263 int security_sb_alloc(struct super_block
*sb
)
265 return security_ops
->sb_alloc_security(sb
);
268 void security_sb_free(struct super_block
*sb
)
270 security_ops
->sb_free_security(sb
);
273 int security_sb_copy_data(char *orig
, char *copy
)
275 return security_ops
->sb_copy_data(orig
, copy
);
277 EXPORT_SYMBOL(security_sb_copy_data
);
279 int security_sb_remount(struct super_block
*sb
, void *data
)
281 return security_ops
->sb_remount(sb
, data
);
284 int security_sb_kern_mount(struct super_block
*sb
, int flags
, void *data
)
286 return security_ops
->sb_kern_mount(sb
, flags
, data
);
289 int security_sb_show_options(struct seq_file
*m
, struct super_block
*sb
)
291 return security_ops
->sb_show_options(m
, sb
);
294 int security_sb_statfs(struct dentry
*dentry
)
296 return security_ops
->sb_statfs(dentry
);
299 int security_sb_mount(const char *dev_name
, struct path
*path
,
300 const char *type
, unsigned long flags
, void *data
)
302 return security_ops
->sb_mount(dev_name
, path
, type
, flags
, data
);
305 int security_sb_umount(struct vfsmount
*mnt
, int flags
)
307 return security_ops
->sb_umount(mnt
, flags
);
310 int security_sb_pivotroot(struct path
*old_path
, struct path
*new_path
)
312 return security_ops
->sb_pivotroot(old_path
, new_path
);
315 int security_sb_set_mnt_opts(struct super_block
*sb
,
316 struct security_mnt_opts
*opts
)
318 return security_ops
->sb_set_mnt_opts(sb
, opts
);
320 EXPORT_SYMBOL(security_sb_set_mnt_opts
);
322 int security_sb_clone_mnt_opts(const struct super_block
*oldsb
,
323 struct super_block
*newsb
)
325 return security_ops
->sb_clone_mnt_opts(oldsb
, newsb
);
327 EXPORT_SYMBOL(security_sb_clone_mnt_opts
);
329 int security_sb_parse_opts_str(char *options
, struct security_mnt_opts
*opts
)
331 return security_ops
->sb_parse_opts_str(options
, opts
);
333 EXPORT_SYMBOL(security_sb_parse_opts_str
);
335 int security_inode_alloc(struct inode
*inode
)
337 inode
->i_security
= NULL
;
338 return security_ops
->inode_alloc_security(inode
);
341 void security_inode_free(struct inode
*inode
)
343 integrity_inode_free(inode
);
344 security_ops
->inode_free_security(inode
);
347 int security_inode_init_security(struct inode
*inode
, struct inode
*dir
,
348 const struct qstr
*qstr
,
349 const initxattrs initxattrs
, void *fs_data
)
351 struct xattr new_xattrs
[MAX_LSM_EVM_XATTR
+ 1];
352 struct xattr
*lsm_xattr
, *evm_xattr
, *xattr
;
355 if (unlikely(IS_PRIVATE(inode
)))
358 memset(new_xattrs
, 0, sizeof new_xattrs
);
360 return security_ops
->inode_init_security(inode
, dir
, qstr
,
362 lsm_xattr
= new_xattrs
;
363 ret
= security_ops
->inode_init_security(inode
, dir
, qstr
,
366 &lsm_xattr
->value_len
);
370 evm_xattr
= lsm_xattr
+ 1;
371 ret
= evm_inode_init_security(inode
, lsm_xattr
, evm_xattr
);
374 ret
= initxattrs(inode
, new_xattrs
, fs_data
);
376 for (xattr
= new_xattrs
; xattr
->name
!= NULL
; xattr
++) {
380 return (ret
== -EOPNOTSUPP
) ? 0 : ret
;
382 EXPORT_SYMBOL(security_inode_init_security
);
384 int security_old_inode_init_security(struct inode
*inode
, struct inode
*dir
,
385 const struct qstr
*qstr
, char **name
,
386 void **value
, size_t *len
)
388 if (unlikely(IS_PRIVATE(inode
)))
390 return security_ops
->inode_init_security(inode
, dir
, qstr
, name
, value
,
393 EXPORT_SYMBOL(security_old_inode_init_security
);
395 #ifdef CONFIG_SECURITY_PATH
396 int security_path_mknod(struct path
*dir
, struct dentry
*dentry
, umode_t mode
,
399 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
401 return security_ops
->path_mknod(dir
, dentry
, mode
, dev
);
403 EXPORT_SYMBOL(security_path_mknod
);
405 int security_path_mkdir(struct path
*dir
, struct dentry
*dentry
, umode_t mode
)
407 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
409 return security_ops
->path_mkdir(dir
, dentry
, mode
);
411 EXPORT_SYMBOL(security_path_mkdir
);
413 int security_path_rmdir(struct path
*dir
, struct dentry
*dentry
)
415 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
417 return security_ops
->path_rmdir(dir
, dentry
);
420 int security_path_unlink(struct path
*dir
, struct dentry
*dentry
)
422 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
424 return security_ops
->path_unlink(dir
, dentry
);
426 EXPORT_SYMBOL(security_path_unlink
);
428 int security_path_symlink(struct path
*dir
, struct dentry
*dentry
,
429 const char *old_name
)
431 if (unlikely(IS_PRIVATE(dir
->dentry
->d_inode
)))
433 return security_ops
->path_symlink(dir
, dentry
, old_name
);
436 int security_path_link(struct dentry
*old_dentry
, struct path
*new_dir
,
437 struct dentry
*new_dentry
)
439 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
)))
441 return security_ops
->path_link(old_dentry
, new_dir
, new_dentry
);
444 int security_path_rename(struct path
*old_dir
, struct dentry
*old_dentry
,
445 struct path
*new_dir
, struct dentry
*new_dentry
)
447 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
) ||
448 (new_dentry
->d_inode
&& IS_PRIVATE(new_dentry
->d_inode
))))
450 return security_ops
->path_rename(old_dir
, old_dentry
, new_dir
,
453 EXPORT_SYMBOL(security_path_rename
);
455 int security_path_truncate(struct path
*path
)
457 if (unlikely(IS_PRIVATE(path
->dentry
->d_inode
)))
459 return security_ops
->path_truncate(path
);
462 int security_path_chmod(struct path
*path
, umode_t mode
)
464 if (unlikely(IS_PRIVATE(path
->dentry
->d_inode
)))
466 return security_ops
->path_chmod(path
, mode
);
469 int security_path_chown(struct path
*path
, kuid_t uid
, kgid_t gid
)
471 if (unlikely(IS_PRIVATE(path
->dentry
->d_inode
)))
473 return security_ops
->path_chown(path
, uid
, gid
);
476 int security_path_chroot(struct path
*path
)
478 return security_ops
->path_chroot(path
);
482 int security_inode_create(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
484 if (unlikely(IS_PRIVATE(dir
)))
486 return security_ops
->inode_create(dir
, dentry
, mode
);
488 EXPORT_SYMBOL_GPL(security_inode_create
);
490 int security_inode_link(struct dentry
*old_dentry
, struct inode
*dir
,
491 struct dentry
*new_dentry
)
493 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
)))
495 return security_ops
->inode_link(old_dentry
, dir
, new_dentry
);
498 int security_inode_unlink(struct inode
*dir
, struct dentry
*dentry
)
500 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
502 return security_ops
->inode_unlink(dir
, dentry
);
505 int security_inode_symlink(struct inode
*dir
, struct dentry
*dentry
,
506 const char *old_name
)
508 if (unlikely(IS_PRIVATE(dir
)))
510 return security_ops
->inode_symlink(dir
, dentry
, old_name
);
513 int security_inode_mkdir(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
)
515 if (unlikely(IS_PRIVATE(dir
)))
517 return security_ops
->inode_mkdir(dir
, dentry
, mode
);
519 EXPORT_SYMBOL_GPL(security_inode_mkdir
);
521 int security_inode_rmdir(struct inode
*dir
, struct dentry
*dentry
)
523 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
525 return security_ops
->inode_rmdir(dir
, dentry
);
528 int security_inode_mknod(struct inode
*dir
, struct dentry
*dentry
, umode_t mode
, dev_t dev
)
530 if (unlikely(IS_PRIVATE(dir
)))
532 return security_ops
->inode_mknod(dir
, dentry
, mode
, dev
);
535 int security_inode_rename(struct inode
*old_dir
, struct dentry
*old_dentry
,
536 struct inode
*new_dir
, struct dentry
*new_dentry
)
538 if (unlikely(IS_PRIVATE(old_dentry
->d_inode
) ||
539 (new_dentry
->d_inode
&& IS_PRIVATE(new_dentry
->d_inode
))))
541 return security_ops
->inode_rename(old_dir
, old_dentry
,
542 new_dir
, new_dentry
);
545 int security_inode_readlink(struct dentry
*dentry
)
547 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
549 return security_ops
->inode_readlink(dentry
);
552 int security_inode_follow_link(struct dentry
*dentry
, struct nameidata
*nd
)
554 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
556 return security_ops
->inode_follow_link(dentry
, nd
);
559 int security_inode_permission(struct inode
*inode
, int mask
)
561 if (unlikely(IS_PRIVATE(inode
)))
563 return security_ops
->inode_permission(inode
, mask
);
566 int security_inode_setattr(struct dentry
*dentry
, struct iattr
*attr
)
570 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
572 ret
= security_ops
->inode_setattr(dentry
, attr
);
575 return evm_inode_setattr(dentry
, attr
);
577 EXPORT_SYMBOL_GPL(security_inode_setattr
);
579 int security_inode_getattr(struct vfsmount
*mnt
, struct dentry
*dentry
)
581 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
583 return security_ops
->inode_getattr(mnt
, dentry
);
586 int security_inode_setxattr(struct dentry
*dentry
, const char *name
,
587 const void *value
, size_t size
, int flags
)
591 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
593 ret
= security_ops
->inode_setxattr(dentry
, name
, value
, size
, flags
);
596 ret
= ima_inode_setxattr(dentry
, name
, value
, size
);
599 return evm_inode_setxattr(dentry
, name
, value
, size
);
602 void security_inode_post_setxattr(struct dentry
*dentry
, const char *name
,
603 const void *value
, size_t size
, int flags
)
605 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
607 security_ops
->inode_post_setxattr(dentry
, name
, value
, size
, flags
);
608 evm_inode_post_setxattr(dentry
, name
, value
, size
);
611 int security_inode_getxattr(struct dentry
*dentry
, const char *name
)
613 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
615 return security_ops
->inode_getxattr(dentry
, name
);
618 int security_inode_listxattr(struct dentry
*dentry
)
620 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
622 return security_ops
->inode_listxattr(dentry
);
625 int security_inode_removexattr(struct dentry
*dentry
, const char *name
)
629 if (unlikely(IS_PRIVATE(dentry
->d_inode
)))
631 ret
= security_ops
->inode_removexattr(dentry
, name
);
634 ret
= ima_inode_removexattr(dentry
, name
);
637 return evm_inode_removexattr(dentry
, name
);
640 int security_inode_need_killpriv(struct dentry
*dentry
)
642 return security_ops
->inode_need_killpriv(dentry
);
645 int security_inode_killpriv(struct dentry
*dentry
)
647 return security_ops
->inode_killpriv(dentry
);
650 int security_inode_getsecurity(const struct inode
*inode
, const char *name
, void **buffer
, bool alloc
)
652 if (unlikely(IS_PRIVATE(inode
)))
654 return security_ops
->inode_getsecurity(inode
, name
, buffer
, alloc
);
657 int security_inode_setsecurity(struct inode
*inode
, const char *name
, const void *value
, size_t size
, int flags
)
659 if (unlikely(IS_PRIVATE(inode
)))
661 return security_ops
->inode_setsecurity(inode
, name
, value
, size
, flags
);
664 int security_inode_listsecurity(struct inode
*inode
, char *buffer
, size_t buffer_size
)
666 if (unlikely(IS_PRIVATE(inode
)))
668 return security_ops
->inode_listsecurity(inode
, buffer
, buffer_size
);
671 void security_inode_getsecid(const struct inode
*inode
, u32
*secid
)
673 security_ops
->inode_getsecid(inode
, secid
);
676 int security_file_permission(struct file
*file
, int mask
)
680 ret
= security_ops
->file_permission(file
, mask
);
684 return fsnotify_perm(file
, mask
);
687 int security_file_alloc(struct file
*file
)
689 return security_ops
->file_alloc_security(file
);
692 void security_file_free(struct file
*file
)
694 security_ops
->file_free_security(file
);
697 int security_file_ioctl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
699 return security_ops
->file_ioctl(file
, cmd
, arg
);
702 static inline unsigned long mmap_prot(struct file
*file
, unsigned long prot
)
705 * Does we have PROT_READ and does the application expect
706 * it to imply PROT_EXEC? If not, nothing to talk about...
708 if ((prot
& (PROT_READ
| PROT_EXEC
)) != PROT_READ
)
710 if (!(current
->personality
& READ_IMPLIES_EXEC
))
713 * if that's an anonymous mapping, let it.
716 return prot
| PROT_EXEC
;
718 * ditto if it's not on noexec mount, except that on !MMU we need
719 * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
721 if (!(file
->f_path
.mnt
->mnt_flags
& MNT_NOEXEC
)) {
723 unsigned long caps
= 0;
724 struct address_space
*mapping
= file
->f_mapping
;
725 if (mapping
&& mapping
->backing_dev_info
)
726 caps
= mapping
->backing_dev_info
->capabilities
;
727 if (!(caps
& BDI_CAP_EXEC_MAP
))
730 return prot
| PROT_EXEC
;
732 /* anything on noexec mount won't get PROT_EXEC */
736 int security_mmap_file(struct file
*file
, unsigned long prot
,
740 ret
= security_ops
->mmap_file(file
, prot
,
741 mmap_prot(file
, prot
), flags
);
744 return ima_file_mmap(file
, prot
);
747 int security_mmap_addr(unsigned long addr
)
749 return security_ops
->mmap_addr(addr
);
752 int security_file_mprotect(struct vm_area_struct
*vma
, unsigned long reqprot
,
755 return security_ops
->file_mprotect(vma
, reqprot
, prot
);
758 int security_file_lock(struct file
*file
, unsigned int cmd
)
760 return security_ops
->file_lock(file
, cmd
);
763 int security_file_fcntl(struct file
*file
, unsigned int cmd
, unsigned long arg
)
765 return security_ops
->file_fcntl(file
, cmd
, arg
);
768 int security_file_set_fowner(struct file
*file
)
770 return security_ops
->file_set_fowner(file
);
773 int security_file_send_sigiotask(struct task_struct
*tsk
,
774 struct fown_struct
*fown
, int sig
)
776 return security_ops
->file_send_sigiotask(tsk
, fown
, sig
);
779 int security_file_receive(struct file
*file
)
781 return security_ops
->file_receive(file
);
784 int security_file_open(struct file
*file
, const struct cred
*cred
)
788 ret
= security_ops
->file_open(file
, cred
);
792 return fsnotify_perm(file
, MAY_OPEN
);
795 int security_task_create(unsigned long clone_flags
)
797 return security_ops
->task_create(clone_flags
);
800 void security_task_free(struct task_struct
*task
)
802 #ifdef CONFIG_SECURITY_YAMA_STACKED
803 yama_task_free(task
);
805 security_ops
->task_free(task
);
808 int security_cred_alloc_blank(struct cred
*cred
, gfp_t gfp
)
810 return security_ops
->cred_alloc_blank(cred
, gfp
);
813 void security_cred_free(struct cred
*cred
)
815 security_ops
->cred_free(cred
);
818 int security_prepare_creds(struct cred
*new, const struct cred
*old
, gfp_t gfp
)
820 return security_ops
->cred_prepare(new, old
, gfp
);
823 void security_transfer_creds(struct cred
*new, const struct cred
*old
)
825 security_ops
->cred_transfer(new, old
);
828 int security_kernel_act_as(struct cred
*new, u32 secid
)
830 return security_ops
->kernel_act_as(new, secid
);
833 int security_kernel_create_files_as(struct cred
*new, struct inode
*inode
)
835 return security_ops
->kernel_create_files_as(new, inode
);
838 int security_kernel_module_request(char *kmod_name
)
840 return security_ops
->kernel_module_request(kmod_name
);
843 int security_kernel_module_from_file(struct file
*file
)
847 ret
= security_ops
->kernel_module_from_file(file
);
850 return ima_module_check(file
);
853 int security_task_fix_setuid(struct cred
*new, const struct cred
*old
,
856 return security_ops
->task_fix_setuid(new, old
, flags
);
859 int security_task_setpgid(struct task_struct
*p
, pid_t pgid
)
861 return security_ops
->task_setpgid(p
, pgid
);
864 int security_task_getpgid(struct task_struct
*p
)
866 return security_ops
->task_getpgid(p
);
869 int security_task_getsid(struct task_struct
*p
)
871 return security_ops
->task_getsid(p
);
874 void security_task_getsecid(struct task_struct
*p
, u32
*secid
)
876 security_ops
->task_getsecid(p
, secid
);
878 EXPORT_SYMBOL(security_task_getsecid
);
880 int security_task_setnice(struct task_struct
*p
, int nice
)
882 return security_ops
->task_setnice(p
, nice
);
885 int security_task_setioprio(struct task_struct
*p
, int ioprio
)
887 return security_ops
->task_setioprio(p
, ioprio
);
890 int security_task_getioprio(struct task_struct
*p
)
892 return security_ops
->task_getioprio(p
);
895 int security_task_setrlimit(struct task_struct
*p
, unsigned int resource
,
896 struct rlimit
*new_rlim
)
898 return security_ops
->task_setrlimit(p
, resource
, new_rlim
);
901 int security_task_setscheduler(struct task_struct
*p
)
903 return security_ops
->task_setscheduler(p
);
906 int security_task_getscheduler(struct task_struct
*p
)
908 return security_ops
->task_getscheduler(p
);
911 int security_task_movememory(struct task_struct
*p
)
913 return security_ops
->task_movememory(p
);
916 int security_task_kill(struct task_struct
*p
, struct siginfo
*info
,
919 return security_ops
->task_kill(p
, info
, sig
, secid
);
922 int security_task_wait(struct task_struct
*p
)
924 return security_ops
->task_wait(p
);
927 int security_task_prctl(int option
, unsigned long arg2
, unsigned long arg3
,
928 unsigned long arg4
, unsigned long arg5
)
930 #ifdef CONFIG_SECURITY_YAMA_STACKED
932 rc
= yama_task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
936 return security_ops
->task_prctl(option
, arg2
, arg3
, arg4
, arg5
);
939 void security_task_to_inode(struct task_struct
*p
, struct inode
*inode
)
941 security_ops
->task_to_inode(p
, inode
);
944 int security_ipc_permission(struct kern_ipc_perm
*ipcp
, short flag
)
946 return security_ops
->ipc_permission(ipcp
, flag
);
949 void security_ipc_getsecid(struct kern_ipc_perm
*ipcp
, u32
*secid
)
951 security_ops
->ipc_getsecid(ipcp
, secid
);
954 int security_msg_msg_alloc(struct msg_msg
*msg
)
956 return security_ops
->msg_msg_alloc_security(msg
);
959 void security_msg_msg_free(struct msg_msg
*msg
)
961 security_ops
->msg_msg_free_security(msg
);
964 int security_msg_queue_alloc(struct msg_queue
*msq
)
966 return security_ops
->msg_queue_alloc_security(msq
);
969 void security_msg_queue_free(struct msg_queue
*msq
)
971 security_ops
->msg_queue_free_security(msq
);
974 int security_msg_queue_associate(struct msg_queue
*msq
, int msqflg
)
976 return security_ops
->msg_queue_associate(msq
, msqflg
);
979 int security_msg_queue_msgctl(struct msg_queue
*msq
, int cmd
)
981 return security_ops
->msg_queue_msgctl(msq
, cmd
);
984 int security_msg_queue_msgsnd(struct msg_queue
*msq
,
985 struct msg_msg
*msg
, int msqflg
)
987 return security_ops
->msg_queue_msgsnd(msq
, msg
, msqflg
);
990 int security_msg_queue_msgrcv(struct msg_queue
*msq
, struct msg_msg
*msg
,
991 struct task_struct
*target
, long type
, int mode
)
993 return security_ops
->msg_queue_msgrcv(msq
, msg
, target
, type
, mode
);
996 int security_shm_alloc(struct shmid_kernel
*shp
)
998 return security_ops
->shm_alloc_security(shp
);
1001 void security_shm_free(struct shmid_kernel
*shp
)
1003 security_ops
->shm_free_security(shp
);
1006 int security_shm_associate(struct shmid_kernel
*shp
, int shmflg
)
1008 return security_ops
->shm_associate(shp
, shmflg
);
1011 int security_shm_shmctl(struct shmid_kernel
*shp
, int cmd
)
1013 return security_ops
->shm_shmctl(shp
, cmd
);
1016 int security_shm_shmat(struct shmid_kernel
*shp
, char __user
*shmaddr
, int shmflg
)
1018 return security_ops
->shm_shmat(shp
, shmaddr
, shmflg
);
1021 int security_sem_alloc(struct sem_array
*sma
)
1023 return security_ops
->sem_alloc_security(sma
);
1026 void security_sem_free(struct sem_array
*sma
)
1028 security_ops
->sem_free_security(sma
);
1031 int security_sem_associate(struct sem_array
*sma
, int semflg
)
1033 return security_ops
->sem_associate(sma
, semflg
);
1036 int security_sem_semctl(struct sem_array
*sma
, int cmd
)
1038 return security_ops
->sem_semctl(sma
, cmd
);
1041 int security_sem_semop(struct sem_array
*sma
, struct sembuf
*sops
,
1042 unsigned nsops
, int alter
)
1044 return security_ops
->sem_semop(sma
, sops
, nsops
, alter
);
1047 void security_d_instantiate(struct dentry
*dentry
, struct inode
*inode
)
1049 if (unlikely(inode
&& IS_PRIVATE(inode
)))
1051 security_ops
->d_instantiate(dentry
, inode
);
1053 EXPORT_SYMBOL(security_d_instantiate
);
1055 int security_getprocattr(struct task_struct
*p
, char *name
, char **value
)
1057 return security_ops
->getprocattr(p
, name
, value
);
1060 int security_setprocattr(struct task_struct
*p
, char *name
, void *value
, size_t size
)
1062 return security_ops
->setprocattr(p
, name
, value
, size
);
1065 int security_netlink_send(struct sock
*sk
, struct sk_buff
*skb
)
1067 return security_ops
->netlink_send(sk
, skb
);
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
, struct xfrm_user_sec_ctx
*sec_ctx
)
1324 return security_ops
->xfrm_policy_alloc_security(ctxp
, sec_ctx
);
1326 EXPORT_SYMBOL(security_xfrm_policy_alloc
);
1328 int security_xfrm_policy_clone(struct xfrm_sec_ctx
*old_ctx
,
1329 struct xfrm_sec_ctx
**new_ctxp
)
1331 return security_ops
->xfrm_policy_clone_security(old_ctx
, new_ctxp
);
1334 void security_xfrm_policy_free(struct xfrm_sec_ctx
*ctx
)
1336 security_ops
->xfrm_policy_free_security(ctx
);
1338 EXPORT_SYMBOL(security_xfrm_policy_free
);
1340 int security_xfrm_policy_delete(struct xfrm_sec_ctx
*ctx
)
1342 return security_ops
->xfrm_policy_delete_security(ctx
);
1345 int security_xfrm_state_alloc(struct xfrm_state
*x
, struct xfrm_user_sec_ctx
*sec_ctx
)
1347 return security_ops
->xfrm_state_alloc_security(x
, sec_ctx
, 0);
1349 EXPORT_SYMBOL(security_xfrm_state_alloc
);
1351 int security_xfrm_state_alloc_acquire(struct xfrm_state
*x
,
1352 struct xfrm_sec_ctx
*polsec
, u32 secid
)
1357 * We want the context to be taken from secid which is usually
1360 return security_ops
->xfrm_state_alloc_security(x
, NULL
, secid
);
1363 int security_xfrm_state_delete(struct xfrm_state
*x
)
1365 return security_ops
->xfrm_state_delete_security(x
);
1367 EXPORT_SYMBOL(security_xfrm_state_delete
);
1369 void security_xfrm_state_free(struct xfrm_state
*x
)
1371 security_ops
->xfrm_state_free_security(x
);
1374 int security_xfrm_policy_lookup(struct xfrm_sec_ctx
*ctx
, u32 fl_secid
, u8 dir
)
1376 return security_ops
->xfrm_policy_lookup(ctx
, fl_secid
, dir
);
1379 int security_xfrm_state_pol_flow_match(struct xfrm_state
*x
,
1380 struct xfrm_policy
*xp
,
1381 const struct flowi
*fl
)
1383 return security_ops
->xfrm_state_pol_flow_match(x
, xp
, fl
);
1386 int security_xfrm_decode_session(struct sk_buff
*skb
, u32
*secid
)
1388 return security_ops
->xfrm_decode_session(skb
, secid
, 1);
1391 void security_skb_classify_flow(struct sk_buff
*skb
, struct flowi
*fl
)
1393 int rc
= security_ops
->xfrm_decode_session(skb
, &fl
->flowi_secid
, 0);
1397 EXPORT_SYMBOL(security_skb_classify_flow
);
1399 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1403 int security_key_alloc(struct key
*key
, const struct cred
*cred
,
1404 unsigned long flags
)
1406 return security_ops
->key_alloc(key
, cred
, flags
);
1409 void security_key_free(struct key
*key
)
1411 security_ops
->key_free(key
);
1414 int security_key_permission(key_ref_t key_ref
,
1415 const struct cred
*cred
, key_perm_t perm
)
1417 return security_ops
->key_permission(key_ref
, cred
, perm
);
1420 int security_key_getsecurity(struct key
*key
, char **_buffer
)
1422 return security_ops
->key_getsecurity(key
, _buffer
);
1425 #endif /* CONFIG_KEYS */
1429 int security_audit_rule_init(u32 field
, u32 op
, char *rulestr
, void **lsmrule
)
1431 return security_ops
->audit_rule_init(field
, op
, rulestr
, lsmrule
);
1434 int security_audit_rule_known(struct audit_krule
*krule
)
1436 return security_ops
->audit_rule_known(krule
);
1439 void security_audit_rule_free(void *lsmrule
)
1441 security_ops
->audit_rule_free(lsmrule
);
1444 int security_audit_rule_match(u32 secid
, u32 field
, u32 op
, void *lsmrule
,
1445 struct audit_context
*actx
)
1447 return security_ops
->audit_rule_match(secid
, field
, op
, lsmrule
, actx
);
1450 #endif /* CONFIG_AUDIT */