regulator: max8997: Use uV in voltage_map_desc
[linux/fpc-iii.git] / security / security.c
blob8dcd4ae10a5fba06086ed31998c78c77ec32469c
1 /*
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>
27 #include <net/flow.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 = {
37 .name = "default",
40 static inline int __init verify(struct security_operations *ops)
42 /* verify the security_operations structure exists */
43 if (!ops)
44 return -EINVAL;
45 security_fixup_ops(ops);
46 return 0;
49 static void __init do_security_initcalls(void)
51 initcall_t *call;
52 call = __security_initcall_start;
53 while (call < __security_initcall_end) {
54 (*call) ();
55 call++;
59 /**
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();
72 return 0;
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);
84 return 1;
86 __setup("security=", choose_lsm);
88 /**
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.
96 * Return true if:
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)
121 if (verify(ops)) {
122 printk(KERN_DEBUG "%s could not verify "
123 "security_operations structure.\n", __func__);
124 return -EINVAL;
127 if (security_ops != &default_security_ops)
128 return -EAGAIN;
130 security_ops = ops;
132 return 0;
135 /* Security operations */
137 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
139 #ifdef CONFIG_SECURITY_YAMA_STACKED
140 int rc;
141 rc = yama_ptrace_access_check(child, mode);
142 if (rc)
143 return rc;
144 #endif
145 return security_ops->ptrace_access_check(child, mode);
148 int security_ptrace_traceme(struct task_struct *parent)
150 #ifdef CONFIG_SECURITY_YAMA_STACKED
151 int rc;
152 rc = yama_ptrace_traceme(parent);
153 if (rc)
154 return rc;
155 #endif
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,
177 int cap)
179 return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
182 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
183 int cap)
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)
220 int ret;
222 ret = security_ops->bprm_check_security(bprm);
223 if (ret)
224 return ret;
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;
333 int ret;
335 if (unlikely(IS_PRIVATE(inode)))
336 return 0;
338 memset(new_xattrs, 0, sizeof new_xattrs);
339 if (!initxattrs)
340 return security_ops->inode_init_security(inode, dir, qstr,
341 NULL, NULL, NULL);
342 lsm_xattr = new_xattrs;
343 ret = security_ops->inode_init_security(inode, dir, qstr,
344 &lsm_xattr->name,
345 &lsm_xattr->value,
346 &lsm_xattr->value_len);
347 if (ret)
348 goto out;
350 evm_xattr = lsm_xattr + 1;
351 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
352 if (ret)
353 goto out;
354 ret = initxattrs(inode, new_xattrs, fs_data);
355 out:
356 for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
357 kfree(xattr->name);
358 kfree(xattr->value);
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)))
369 return -EOPNOTSUPP;
370 return security_ops->inode_init_security(inode, dir, qstr, name, value,
371 len);
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,
377 unsigned int dev)
379 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
380 return 0;
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)))
388 return 0;
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)))
396 return 0;
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)))
403 return 0;
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)))
412 return 0;
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)))
420 return 0;
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))))
429 return 0;
430 return security_ops->path_rename(old_dir, old_dentry, new_dir,
431 new_dentry);
433 EXPORT_SYMBOL(security_path_rename);
435 int security_path_truncate(struct path *path)
437 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
438 return 0;
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)))
445 return 0;
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)))
452 return 0;
453 return security_ops->path_chown(path, uid, gid);
456 int security_path_chroot(struct path *path)
458 return security_ops->path_chroot(path);
460 #endif
462 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
464 if (unlikely(IS_PRIVATE(dir)))
465 return 0;
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)))
474 return 0;
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)))
481 return 0;
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)))
489 return 0;
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)))
496 return 0;
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)))
504 return 0;
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)))
511 return 0;
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))))
520 return 0;
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)))
528 return 0;
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)))
535 return 0;
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)))
542 return 0;
543 return security_ops->inode_permission(inode, mask);
546 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
548 int ret;
550 if (unlikely(IS_PRIVATE(dentry->d_inode)))
551 return 0;
552 ret = security_ops->inode_setattr(dentry, attr);
553 if (ret)
554 return ret;
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)))
562 return 0;
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)
569 int ret;
571 if (unlikely(IS_PRIVATE(dentry->d_inode)))
572 return 0;
573 ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
574 if (ret)
575 return ret;
576 ret = ima_inode_setxattr(dentry, name, value, size);
577 if (ret)
578 return ret;
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)))
586 return;
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)))
594 return 0;
595 return security_ops->inode_getxattr(dentry, name);
598 int security_inode_listxattr(struct dentry *dentry)
600 if (unlikely(IS_PRIVATE(dentry->d_inode)))
601 return 0;
602 return security_ops->inode_listxattr(dentry);
605 int security_inode_removexattr(struct dentry *dentry, const char *name)
607 int ret;
609 if (unlikely(IS_PRIVATE(dentry->d_inode)))
610 return 0;
611 ret = security_ops->inode_removexattr(dentry, name);
612 if (ret)
613 return ret;
614 ret = ima_inode_removexattr(dentry, name);
615 if (ret)
616 return ret;
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)))
633 return -EOPNOTSUPP;
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)))
640 return -EOPNOTSUPP;
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)))
647 return 0;
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)
658 int ret;
660 ret = security_ops->file_permission(file, mask);
661 if (ret)
662 return ret;
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)
689 return prot;
690 if (!(current->personality & READ_IMPLIES_EXEC))
691 return prot;
693 * if that's an anonymous mapping, let it.
695 if (!file)
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)) {
702 #ifndef CONFIG_MMU
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))
708 return prot;
709 #endif
710 return prot | PROT_EXEC;
712 /* anything on noexec mount won't get PROT_EXEC */
713 return prot;
716 int security_mmap_file(struct file *file, unsigned long prot,
717 unsigned long flags)
719 int ret;
720 ret = security_ops->mmap_file(file, prot,
721 mmap_prot(file, prot), flags);
722 if (ret)
723 return ret;
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,
733 unsigned long prot)
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)
766 int ret;
768 ret = security_ops->file_open(file, cred);
769 if (ret)
770 return ret;
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);
784 #endif
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_task_fix_setuid(struct cred *new, const struct cred *old,
824 int flags)
826 return security_ops->task_fix_setuid(new, old, flags);
829 int security_task_setpgid(struct task_struct *p, pid_t pgid)
831 return security_ops->task_setpgid(p, pgid);
834 int security_task_getpgid(struct task_struct *p)
836 return security_ops->task_getpgid(p);
839 int security_task_getsid(struct task_struct *p)
841 return security_ops->task_getsid(p);
844 void security_task_getsecid(struct task_struct *p, u32 *secid)
846 security_ops->task_getsecid(p, secid);
848 EXPORT_SYMBOL(security_task_getsecid);
850 int security_task_setnice(struct task_struct *p, int nice)
852 return security_ops->task_setnice(p, nice);
855 int security_task_setioprio(struct task_struct *p, int ioprio)
857 return security_ops->task_setioprio(p, ioprio);
860 int security_task_getioprio(struct task_struct *p)
862 return security_ops->task_getioprio(p);
865 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
866 struct rlimit *new_rlim)
868 return security_ops->task_setrlimit(p, resource, new_rlim);
871 int security_task_setscheduler(struct task_struct *p)
873 return security_ops->task_setscheduler(p);
876 int security_task_getscheduler(struct task_struct *p)
878 return security_ops->task_getscheduler(p);
881 int security_task_movememory(struct task_struct *p)
883 return security_ops->task_movememory(p);
886 int security_task_kill(struct task_struct *p, struct siginfo *info,
887 int sig, u32 secid)
889 return security_ops->task_kill(p, info, sig, secid);
892 int security_task_wait(struct task_struct *p)
894 return security_ops->task_wait(p);
897 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
898 unsigned long arg4, unsigned long arg5)
900 #ifdef CONFIG_SECURITY_YAMA_STACKED
901 int rc;
902 rc = yama_task_prctl(option, arg2, arg3, arg4, arg5);
903 if (rc != -ENOSYS)
904 return rc;
905 #endif
906 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
909 void security_task_to_inode(struct task_struct *p, struct inode *inode)
911 security_ops->task_to_inode(p, inode);
914 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
916 return security_ops->ipc_permission(ipcp, flag);
919 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
921 security_ops->ipc_getsecid(ipcp, secid);
924 int security_msg_msg_alloc(struct msg_msg *msg)
926 return security_ops->msg_msg_alloc_security(msg);
929 void security_msg_msg_free(struct msg_msg *msg)
931 security_ops->msg_msg_free_security(msg);
934 int security_msg_queue_alloc(struct msg_queue *msq)
936 return security_ops->msg_queue_alloc_security(msq);
939 void security_msg_queue_free(struct msg_queue *msq)
941 security_ops->msg_queue_free_security(msq);
944 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
946 return security_ops->msg_queue_associate(msq, msqflg);
949 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
951 return security_ops->msg_queue_msgctl(msq, cmd);
954 int security_msg_queue_msgsnd(struct msg_queue *msq,
955 struct msg_msg *msg, int msqflg)
957 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
960 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
961 struct task_struct *target, long type, int mode)
963 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
966 int security_shm_alloc(struct shmid_kernel *shp)
968 return security_ops->shm_alloc_security(shp);
971 void security_shm_free(struct shmid_kernel *shp)
973 security_ops->shm_free_security(shp);
976 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
978 return security_ops->shm_associate(shp, shmflg);
981 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
983 return security_ops->shm_shmctl(shp, cmd);
986 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
988 return security_ops->shm_shmat(shp, shmaddr, shmflg);
991 int security_sem_alloc(struct sem_array *sma)
993 return security_ops->sem_alloc_security(sma);
996 void security_sem_free(struct sem_array *sma)
998 security_ops->sem_free_security(sma);
1001 int security_sem_associate(struct sem_array *sma, int semflg)
1003 return security_ops->sem_associate(sma, semflg);
1006 int security_sem_semctl(struct sem_array *sma, int cmd)
1008 return security_ops->sem_semctl(sma, cmd);
1011 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1012 unsigned nsops, int alter)
1014 return security_ops->sem_semop(sma, sops, nsops, alter);
1017 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1019 if (unlikely(inode && IS_PRIVATE(inode)))
1020 return;
1021 security_ops->d_instantiate(dentry, inode);
1023 EXPORT_SYMBOL(security_d_instantiate);
1025 int security_getprocattr(struct task_struct *p, char *name, char **value)
1027 return security_ops->getprocattr(p, name, value);
1030 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1032 return security_ops->setprocattr(p, name, value, size);
1035 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1037 return security_ops->netlink_send(sk, skb);
1040 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1042 return security_ops->secid_to_secctx(secid, secdata, seclen);
1044 EXPORT_SYMBOL(security_secid_to_secctx);
1046 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1048 return security_ops->secctx_to_secid(secdata, seclen, secid);
1050 EXPORT_SYMBOL(security_secctx_to_secid);
1052 void security_release_secctx(char *secdata, u32 seclen)
1054 security_ops->release_secctx(secdata, seclen);
1056 EXPORT_SYMBOL(security_release_secctx);
1058 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1060 return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
1062 EXPORT_SYMBOL(security_inode_notifysecctx);
1064 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1066 return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1068 EXPORT_SYMBOL(security_inode_setsecctx);
1070 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1072 return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1074 EXPORT_SYMBOL(security_inode_getsecctx);
1076 #ifdef CONFIG_SECURITY_NETWORK
1078 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1080 return security_ops->unix_stream_connect(sock, other, newsk);
1082 EXPORT_SYMBOL(security_unix_stream_connect);
1084 int security_unix_may_send(struct socket *sock, struct socket *other)
1086 return security_ops->unix_may_send(sock, other);
1088 EXPORT_SYMBOL(security_unix_may_send);
1090 int security_socket_create(int family, int type, int protocol, int kern)
1092 return security_ops->socket_create(family, type, protocol, kern);
1095 int security_socket_post_create(struct socket *sock, int family,
1096 int type, int protocol, int kern)
1098 return security_ops->socket_post_create(sock, family, type,
1099 protocol, kern);
1102 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1104 return security_ops->socket_bind(sock, address, addrlen);
1107 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1109 return security_ops->socket_connect(sock, address, addrlen);
1112 int security_socket_listen(struct socket *sock, int backlog)
1114 return security_ops->socket_listen(sock, backlog);
1117 int security_socket_accept(struct socket *sock, struct socket *newsock)
1119 return security_ops->socket_accept(sock, newsock);
1122 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1124 return security_ops->socket_sendmsg(sock, msg, size);
1127 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1128 int size, int flags)
1130 return security_ops->socket_recvmsg(sock, msg, size, flags);
1133 int security_socket_getsockname(struct socket *sock)
1135 return security_ops->socket_getsockname(sock);
1138 int security_socket_getpeername(struct socket *sock)
1140 return security_ops->socket_getpeername(sock);
1143 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1145 return security_ops->socket_getsockopt(sock, level, optname);
1148 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1150 return security_ops->socket_setsockopt(sock, level, optname);
1153 int security_socket_shutdown(struct socket *sock, int how)
1155 return security_ops->socket_shutdown(sock, how);
1158 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1160 return security_ops->socket_sock_rcv_skb(sk, skb);
1162 EXPORT_SYMBOL(security_sock_rcv_skb);
1164 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1165 int __user *optlen, unsigned len)
1167 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1170 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1172 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1174 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1176 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1178 return security_ops->sk_alloc_security(sk, family, priority);
1181 void security_sk_free(struct sock *sk)
1183 security_ops->sk_free_security(sk);
1186 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1188 security_ops->sk_clone_security(sk, newsk);
1190 EXPORT_SYMBOL(security_sk_clone);
1192 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1194 security_ops->sk_getsecid(sk, &fl->flowi_secid);
1196 EXPORT_SYMBOL(security_sk_classify_flow);
1198 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1200 security_ops->req_classify_flow(req, fl);
1202 EXPORT_SYMBOL(security_req_classify_flow);
1204 void security_sock_graft(struct sock *sk, struct socket *parent)
1206 security_ops->sock_graft(sk, parent);
1208 EXPORT_SYMBOL(security_sock_graft);
1210 int security_inet_conn_request(struct sock *sk,
1211 struct sk_buff *skb, struct request_sock *req)
1213 return security_ops->inet_conn_request(sk, skb, req);
1215 EXPORT_SYMBOL(security_inet_conn_request);
1217 void security_inet_csk_clone(struct sock *newsk,
1218 const struct request_sock *req)
1220 security_ops->inet_csk_clone(newsk, req);
1223 void security_inet_conn_established(struct sock *sk,
1224 struct sk_buff *skb)
1226 security_ops->inet_conn_established(sk, skb);
1229 int security_secmark_relabel_packet(u32 secid)
1231 return security_ops->secmark_relabel_packet(secid);
1233 EXPORT_SYMBOL(security_secmark_relabel_packet);
1235 void security_secmark_refcount_inc(void)
1237 security_ops->secmark_refcount_inc();
1239 EXPORT_SYMBOL(security_secmark_refcount_inc);
1241 void security_secmark_refcount_dec(void)
1243 security_ops->secmark_refcount_dec();
1245 EXPORT_SYMBOL(security_secmark_refcount_dec);
1247 int security_tun_dev_create(void)
1249 return security_ops->tun_dev_create();
1251 EXPORT_SYMBOL(security_tun_dev_create);
1253 void security_tun_dev_post_create(struct sock *sk)
1255 return security_ops->tun_dev_post_create(sk);
1257 EXPORT_SYMBOL(security_tun_dev_post_create);
1259 int security_tun_dev_attach(struct sock *sk)
1261 return security_ops->tun_dev_attach(sk);
1263 EXPORT_SYMBOL(security_tun_dev_attach);
1265 #endif /* CONFIG_SECURITY_NETWORK */
1267 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1269 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1271 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1273 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1275 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1276 struct xfrm_sec_ctx **new_ctxp)
1278 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1281 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1283 security_ops->xfrm_policy_free_security(ctx);
1285 EXPORT_SYMBOL(security_xfrm_policy_free);
1287 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1289 return security_ops->xfrm_policy_delete_security(ctx);
1292 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1294 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1296 EXPORT_SYMBOL(security_xfrm_state_alloc);
1298 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1299 struct xfrm_sec_ctx *polsec, u32 secid)
1301 if (!polsec)
1302 return 0;
1304 * We want the context to be taken from secid which is usually
1305 * from the sock.
1307 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1310 int security_xfrm_state_delete(struct xfrm_state *x)
1312 return security_ops->xfrm_state_delete_security(x);
1314 EXPORT_SYMBOL(security_xfrm_state_delete);
1316 void security_xfrm_state_free(struct xfrm_state *x)
1318 security_ops->xfrm_state_free_security(x);
1321 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1323 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1326 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1327 struct xfrm_policy *xp,
1328 const struct flowi *fl)
1330 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1333 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1335 return security_ops->xfrm_decode_session(skb, secid, 1);
1338 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1340 int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1342 BUG_ON(rc);
1344 EXPORT_SYMBOL(security_skb_classify_flow);
1346 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1348 #ifdef CONFIG_KEYS
1350 int security_key_alloc(struct key *key, const struct cred *cred,
1351 unsigned long flags)
1353 return security_ops->key_alloc(key, cred, flags);
1356 void security_key_free(struct key *key)
1358 security_ops->key_free(key);
1361 int security_key_permission(key_ref_t key_ref,
1362 const struct cred *cred, key_perm_t perm)
1364 return security_ops->key_permission(key_ref, cred, perm);
1367 int security_key_getsecurity(struct key *key, char **_buffer)
1369 return security_ops->key_getsecurity(key, _buffer);
1372 #endif /* CONFIG_KEYS */
1374 #ifdef CONFIG_AUDIT
1376 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1378 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1381 int security_audit_rule_known(struct audit_krule *krule)
1383 return security_ops->audit_rule_known(krule);
1386 void security_audit_rule_free(void *lsmrule)
1388 security_ops->audit_rule_free(lsmrule);
1391 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1392 struct audit_context *actx)
1394 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1397 #endif /* CONFIG_AUDIT */