tracing/selftest: Add a WARN_ON() if a tracer test fails
[linux-2.6.git] / security / security.c
blob3efc9b12aef44016201b02eeafcc10140f17a240
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 <net/flow.h>
28 #define MAX_LSM_EVM_XATTR 2
30 /* Boot-time LSM user choice */
31 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
32 CONFIG_DEFAULT_SECURITY;
34 static struct security_operations *security_ops;
35 static struct security_operations default_security_ops = {
36 .name = "default",
39 static inline int __init verify(struct security_operations *ops)
41 /* verify the security_operations structure exists */
42 if (!ops)
43 return -EINVAL;
44 security_fixup_ops(ops);
45 return 0;
48 static void __init do_security_initcalls(void)
50 initcall_t *call;
51 call = __security_initcall_start;
52 while (call < __security_initcall_end) {
53 (*call) ();
54 call++;
58 /**
59 * security_init - initializes the security framework
61 * This should be called early in the kernel initialization sequence.
63 int __init security_init(void)
65 printk(KERN_INFO "Security Framework initialized\n");
67 security_fixup_ops(&default_security_ops);
68 security_ops = &default_security_ops;
69 do_security_initcalls();
71 return 0;
74 void reset_security_ops(void)
76 security_ops = &default_security_ops;
79 /* Save user chosen LSM */
80 static int __init choose_lsm(char *str)
82 strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
83 return 1;
85 __setup("security=", choose_lsm);
87 /**
88 * security_module_enable - Load given security module on boot ?
89 * @ops: a pointer to the struct security_operations that is to be checked.
91 * Each LSM must pass this method before registering its own operations
92 * to avoid security registration races. This method may also be used
93 * to check if your LSM is currently loaded during kernel initialization.
95 * Return true if:
96 * -The passed LSM is the one chosen by user at boot time,
97 * -or the passed LSM is configured as the default and the user did not
98 * choose an alternate LSM at boot time.
99 * Otherwise, return false.
101 int __init security_module_enable(struct security_operations *ops)
103 return !strcmp(ops->name, chosen_lsm);
107 * register_security - registers a security framework with the kernel
108 * @ops: a pointer to the struct security_options that is to be registered
110 * This function allows a security module to register itself with the
111 * kernel security subsystem. Some rudimentary checking is done on the @ops
112 * value passed to this function. You'll need to check first if your LSM
113 * is allowed to register its @ops by calling security_module_enable(@ops).
115 * If there is already a security module registered with the kernel,
116 * an error will be returned. Otherwise %0 is returned on success.
118 int __init register_security(struct security_operations *ops)
120 if (verify(ops)) {
121 printk(KERN_DEBUG "%s could not verify "
122 "security_operations structure.\n", __func__);
123 return -EINVAL;
126 if (security_ops != &default_security_ops)
127 return -EAGAIN;
129 security_ops = ops;
131 return 0;
134 /* Security operations */
136 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
138 return security_ops->ptrace_access_check(child, mode);
141 int security_ptrace_traceme(struct task_struct *parent)
143 return security_ops->ptrace_traceme(parent);
146 int security_capget(struct task_struct *target,
147 kernel_cap_t *effective,
148 kernel_cap_t *inheritable,
149 kernel_cap_t *permitted)
151 return security_ops->capget(target, effective, inheritable, permitted);
154 int security_capset(struct cred *new, const struct cred *old,
155 const kernel_cap_t *effective,
156 const kernel_cap_t *inheritable,
157 const kernel_cap_t *permitted)
159 return security_ops->capset(new, old,
160 effective, inheritable, permitted);
163 int security_capable(const struct cred *cred, struct user_namespace *ns,
164 int cap)
166 return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
169 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
170 int cap)
172 return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
175 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
177 return security_ops->quotactl(cmds, type, id, sb);
180 int security_quota_on(struct dentry *dentry)
182 return security_ops->quota_on(dentry);
185 int security_syslog(int type)
187 return security_ops->syslog(type);
190 int security_settime(const struct timespec *ts, const struct timezone *tz)
192 return security_ops->settime(ts, tz);
195 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
197 return security_ops->vm_enough_memory(mm, pages);
200 int security_bprm_set_creds(struct linux_binprm *bprm)
202 return security_ops->bprm_set_creds(bprm);
205 int security_bprm_check(struct linux_binprm *bprm)
207 int ret;
209 ret = security_ops->bprm_check_security(bprm);
210 if (ret)
211 return ret;
212 return ima_bprm_check(bprm);
215 void security_bprm_committing_creds(struct linux_binprm *bprm)
217 security_ops->bprm_committing_creds(bprm);
220 void security_bprm_committed_creds(struct linux_binprm *bprm)
222 security_ops->bprm_committed_creds(bprm);
225 int security_bprm_secureexec(struct linux_binprm *bprm)
227 return security_ops->bprm_secureexec(bprm);
230 int security_sb_alloc(struct super_block *sb)
232 return security_ops->sb_alloc_security(sb);
235 void security_sb_free(struct super_block *sb)
237 security_ops->sb_free_security(sb);
240 int security_sb_copy_data(char *orig, char *copy)
242 return security_ops->sb_copy_data(orig, copy);
244 EXPORT_SYMBOL(security_sb_copy_data);
246 int security_sb_remount(struct super_block *sb, void *data)
248 return security_ops->sb_remount(sb, data);
251 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
253 return security_ops->sb_kern_mount(sb, flags, data);
256 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
258 return security_ops->sb_show_options(m, sb);
261 int security_sb_statfs(struct dentry *dentry)
263 return security_ops->sb_statfs(dentry);
266 int security_sb_mount(char *dev_name, struct path *path,
267 char *type, unsigned long flags, void *data)
269 return security_ops->sb_mount(dev_name, path, type, flags, data);
272 int security_sb_umount(struct vfsmount *mnt, int flags)
274 return security_ops->sb_umount(mnt, flags);
277 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
279 return security_ops->sb_pivotroot(old_path, new_path);
282 int security_sb_set_mnt_opts(struct super_block *sb,
283 struct security_mnt_opts *opts)
285 return security_ops->sb_set_mnt_opts(sb, opts);
287 EXPORT_SYMBOL(security_sb_set_mnt_opts);
289 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
290 struct super_block *newsb)
292 security_ops->sb_clone_mnt_opts(oldsb, newsb);
294 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
296 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
298 return security_ops->sb_parse_opts_str(options, opts);
300 EXPORT_SYMBOL(security_sb_parse_opts_str);
302 int security_inode_alloc(struct inode *inode)
304 inode->i_security = NULL;
305 return security_ops->inode_alloc_security(inode);
308 void security_inode_free(struct inode *inode)
310 integrity_inode_free(inode);
311 security_ops->inode_free_security(inode);
314 int security_inode_init_security(struct inode *inode, struct inode *dir,
315 const struct qstr *qstr,
316 const initxattrs initxattrs, void *fs_data)
318 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
319 struct xattr *lsm_xattr, *evm_xattr, *xattr;
320 int ret;
322 if (unlikely(IS_PRIVATE(inode)))
323 return 0;
325 memset(new_xattrs, 0, sizeof new_xattrs);
326 if (!initxattrs)
327 return security_ops->inode_init_security(inode, dir, qstr,
328 NULL, NULL, NULL);
329 lsm_xattr = new_xattrs;
330 ret = security_ops->inode_init_security(inode, dir, qstr,
331 &lsm_xattr->name,
332 &lsm_xattr->value,
333 &lsm_xattr->value_len);
334 if (ret)
335 goto out;
337 evm_xattr = lsm_xattr + 1;
338 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
339 if (ret)
340 goto out;
341 ret = initxattrs(inode, new_xattrs, fs_data);
342 out:
343 for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
344 kfree(xattr->name);
345 kfree(xattr->value);
347 return (ret == -EOPNOTSUPP) ? 0 : ret;
349 EXPORT_SYMBOL(security_inode_init_security);
351 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
352 const struct qstr *qstr, char **name,
353 void **value, size_t *len)
355 if (unlikely(IS_PRIVATE(inode)))
356 return -EOPNOTSUPP;
357 return security_ops->inode_init_security(inode, dir, qstr, name, value,
358 len);
360 EXPORT_SYMBOL(security_old_inode_init_security);
362 #ifdef CONFIG_SECURITY_PATH
363 int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
364 unsigned int dev)
366 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
367 return 0;
368 return security_ops->path_mknod(dir, dentry, mode, dev);
370 EXPORT_SYMBOL(security_path_mknod);
372 int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
374 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
375 return 0;
376 return security_ops->path_mkdir(dir, dentry, mode);
378 EXPORT_SYMBOL(security_path_mkdir);
380 int security_path_rmdir(struct path *dir, struct dentry *dentry)
382 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
383 return 0;
384 return security_ops->path_rmdir(dir, dentry);
387 int security_path_unlink(struct path *dir, struct dentry *dentry)
389 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
390 return 0;
391 return security_ops->path_unlink(dir, dentry);
393 EXPORT_SYMBOL(security_path_unlink);
395 int security_path_symlink(struct path *dir, struct dentry *dentry,
396 const char *old_name)
398 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
399 return 0;
400 return security_ops->path_symlink(dir, dentry, old_name);
403 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
404 struct dentry *new_dentry)
406 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
407 return 0;
408 return security_ops->path_link(old_dentry, new_dir, new_dentry);
411 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
412 struct path *new_dir, struct dentry *new_dentry)
414 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
415 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
416 return 0;
417 return security_ops->path_rename(old_dir, old_dentry, new_dir,
418 new_dentry);
420 EXPORT_SYMBOL(security_path_rename);
422 int security_path_truncate(struct path *path)
424 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
425 return 0;
426 return security_ops->path_truncate(path);
429 int security_path_chmod(struct path *path, umode_t mode)
431 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
432 return 0;
433 return security_ops->path_chmod(path, mode);
436 int security_path_chown(struct path *path, uid_t uid, gid_t gid)
438 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
439 return 0;
440 return security_ops->path_chown(path, uid, gid);
443 int security_path_chroot(struct path *path)
445 return security_ops->path_chroot(path);
447 #endif
449 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
451 if (unlikely(IS_PRIVATE(dir)))
452 return 0;
453 return security_ops->inode_create(dir, dentry, mode);
455 EXPORT_SYMBOL_GPL(security_inode_create);
457 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
458 struct dentry *new_dentry)
460 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
461 return 0;
462 return security_ops->inode_link(old_dentry, dir, new_dentry);
465 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
467 if (unlikely(IS_PRIVATE(dentry->d_inode)))
468 return 0;
469 return security_ops->inode_unlink(dir, dentry);
472 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
473 const char *old_name)
475 if (unlikely(IS_PRIVATE(dir)))
476 return 0;
477 return security_ops->inode_symlink(dir, dentry, old_name);
480 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
482 if (unlikely(IS_PRIVATE(dir)))
483 return 0;
484 return security_ops->inode_mkdir(dir, dentry, mode);
486 EXPORT_SYMBOL_GPL(security_inode_mkdir);
488 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
490 if (unlikely(IS_PRIVATE(dentry->d_inode)))
491 return 0;
492 return security_ops->inode_rmdir(dir, dentry);
495 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
497 if (unlikely(IS_PRIVATE(dir)))
498 return 0;
499 return security_ops->inode_mknod(dir, dentry, mode, dev);
502 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
503 struct inode *new_dir, struct dentry *new_dentry)
505 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
506 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
507 return 0;
508 return security_ops->inode_rename(old_dir, old_dentry,
509 new_dir, new_dentry);
512 int security_inode_readlink(struct dentry *dentry)
514 if (unlikely(IS_PRIVATE(dentry->d_inode)))
515 return 0;
516 return security_ops->inode_readlink(dentry);
519 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
521 if (unlikely(IS_PRIVATE(dentry->d_inode)))
522 return 0;
523 return security_ops->inode_follow_link(dentry, nd);
526 int security_inode_permission(struct inode *inode, int mask)
528 if (unlikely(IS_PRIVATE(inode)))
529 return 0;
530 return security_ops->inode_permission(inode, mask);
533 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
535 int ret;
537 if (unlikely(IS_PRIVATE(dentry->d_inode)))
538 return 0;
539 ret = security_ops->inode_setattr(dentry, attr);
540 if (ret)
541 return ret;
542 return evm_inode_setattr(dentry, attr);
544 EXPORT_SYMBOL_GPL(security_inode_setattr);
546 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
548 if (unlikely(IS_PRIVATE(dentry->d_inode)))
549 return 0;
550 return security_ops->inode_getattr(mnt, dentry);
553 int security_inode_setxattr(struct dentry *dentry, const char *name,
554 const void *value, size_t size, int flags)
556 int ret;
558 if (unlikely(IS_PRIVATE(dentry->d_inode)))
559 return 0;
560 ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
561 if (ret)
562 return ret;
563 return evm_inode_setxattr(dentry, name, value, size);
566 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
567 const void *value, size_t size, int flags)
569 if (unlikely(IS_PRIVATE(dentry->d_inode)))
570 return;
571 security_ops->inode_post_setxattr(dentry, name, value, size, flags);
572 evm_inode_post_setxattr(dentry, name, value, size);
575 int security_inode_getxattr(struct dentry *dentry, const char *name)
577 if (unlikely(IS_PRIVATE(dentry->d_inode)))
578 return 0;
579 return security_ops->inode_getxattr(dentry, name);
582 int security_inode_listxattr(struct dentry *dentry)
584 if (unlikely(IS_PRIVATE(dentry->d_inode)))
585 return 0;
586 return security_ops->inode_listxattr(dentry);
589 int security_inode_removexattr(struct dentry *dentry, const char *name)
591 int ret;
593 if (unlikely(IS_PRIVATE(dentry->d_inode)))
594 return 0;
595 ret = security_ops->inode_removexattr(dentry, name);
596 if (ret)
597 return ret;
598 return evm_inode_removexattr(dentry, name);
601 int security_inode_need_killpriv(struct dentry *dentry)
603 return security_ops->inode_need_killpriv(dentry);
606 int security_inode_killpriv(struct dentry *dentry)
608 return security_ops->inode_killpriv(dentry);
611 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
613 if (unlikely(IS_PRIVATE(inode)))
614 return -EOPNOTSUPP;
615 return security_ops->inode_getsecurity(inode, name, buffer, alloc);
618 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
620 if (unlikely(IS_PRIVATE(inode)))
621 return -EOPNOTSUPP;
622 return security_ops->inode_setsecurity(inode, name, value, size, flags);
625 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
627 if (unlikely(IS_PRIVATE(inode)))
628 return 0;
629 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
632 void security_inode_getsecid(const struct inode *inode, u32 *secid)
634 security_ops->inode_getsecid(inode, secid);
637 int security_file_permission(struct file *file, int mask)
639 int ret;
641 ret = security_ops->file_permission(file, mask);
642 if (ret)
643 return ret;
645 return fsnotify_perm(file, mask);
648 int security_file_alloc(struct file *file)
650 return security_ops->file_alloc_security(file);
653 void security_file_free(struct file *file)
655 security_ops->file_free_security(file);
658 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
660 return security_ops->file_ioctl(file, cmd, arg);
663 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
666 * Does we have PROT_READ and does the application expect
667 * it to imply PROT_EXEC? If not, nothing to talk about...
669 if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ)
670 return prot;
671 if (!(current->personality & READ_IMPLIES_EXEC))
672 return prot;
674 * if that's an anonymous mapping, let it.
676 if (!file)
677 return prot | PROT_EXEC;
679 * ditto if it's not on noexec mount, except that on !MMU we need
680 * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case
682 if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) {
683 #ifndef CONFIG_MMU
684 unsigned long caps = 0;
685 struct address_space *mapping = file->f_mapping;
686 if (mapping && mapping->backing_dev_info)
687 caps = mapping->backing_dev_info->capabilities;
688 if (!(caps & BDI_CAP_EXEC_MAP))
689 return prot;
690 #endif
691 return prot | PROT_EXEC;
693 /* anything on noexec mount won't get PROT_EXEC */
694 return prot;
697 int security_mmap_file(struct file *file, unsigned long prot,
698 unsigned long flags)
700 int ret;
701 ret = security_ops->mmap_file(file, prot,
702 mmap_prot(file, prot), flags);
703 if (ret)
704 return ret;
705 return ima_file_mmap(file, prot);
708 int security_mmap_addr(unsigned long addr)
710 return security_ops->mmap_addr(addr);
713 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
714 unsigned long prot)
716 return security_ops->file_mprotect(vma, reqprot, prot);
719 int security_file_lock(struct file *file, unsigned int cmd)
721 return security_ops->file_lock(file, cmd);
724 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
726 return security_ops->file_fcntl(file, cmd, arg);
729 int security_file_set_fowner(struct file *file)
731 return security_ops->file_set_fowner(file);
734 int security_file_send_sigiotask(struct task_struct *tsk,
735 struct fown_struct *fown, int sig)
737 return security_ops->file_send_sigiotask(tsk, fown, sig);
740 int security_file_receive(struct file *file)
742 return security_ops->file_receive(file);
745 int security_file_open(struct file *file, const struct cred *cred)
747 int ret;
749 ret = security_ops->file_open(file, cred);
750 if (ret)
751 return ret;
753 return fsnotify_perm(file, MAY_OPEN);
756 int security_task_create(unsigned long clone_flags)
758 return security_ops->task_create(clone_flags);
761 void security_task_free(struct task_struct *task)
763 security_ops->task_free(task);
766 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
768 return security_ops->cred_alloc_blank(cred, gfp);
771 void security_cred_free(struct cred *cred)
773 security_ops->cred_free(cred);
776 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
778 return security_ops->cred_prepare(new, old, gfp);
781 void security_transfer_creds(struct cred *new, const struct cred *old)
783 security_ops->cred_transfer(new, old);
786 int security_kernel_act_as(struct cred *new, u32 secid)
788 return security_ops->kernel_act_as(new, secid);
791 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
793 return security_ops->kernel_create_files_as(new, inode);
796 int security_kernel_module_request(char *kmod_name)
798 return security_ops->kernel_module_request(kmod_name);
801 int security_task_fix_setuid(struct cred *new, const struct cred *old,
802 int flags)
804 return security_ops->task_fix_setuid(new, old, flags);
807 int security_task_setpgid(struct task_struct *p, pid_t pgid)
809 return security_ops->task_setpgid(p, pgid);
812 int security_task_getpgid(struct task_struct *p)
814 return security_ops->task_getpgid(p);
817 int security_task_getsid(struct task_struct *p)
819 return security_ops->task_getsid(p);
822 void security_task_getsecid(struct task_struct *p, u32 *secid)
824 security_ops->task_getsecid(p, secid);
826 EXPORT_SYMBOL(security_task_getsecid);
828 int security_task_setnice(struct task_struct *p, int nice)
830 return security_ops->task_setnice(p, nice);
833 int security_task_setioprio(struct task_struct *p, int ioprio)
835 return security_ops->task_setioprio(p, ioprio);
838 int security_task_getioprio(struct task_struct *p)
840 return security_ops->task_getioprio(p);
843 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
844 struct rlimit *new_rlim)
846 return security_ops->task_setrlimit(p, resource, new_rlim);
849 int security_task_setscheduler(struct task_struct *p)
851 return security_ops->task_setscheduler(p);
854 int security_task_getscheduler(struct task_struct *p)
856 return security_ops->task_getscheduler(p);
859 int security_task_movememory(struct task_struct *p)
861 return security_ops->task_movememory(p);
864 int security_task_kill(struct task_struct *p, struct siginfo *info,
865 int sig, u32 secid)
867 return security_ops->task_kill(p, info, sig, secid);
870 int security_task_wait(struct task_struct *p)
872 return security_ops->task_wait(p);
875 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
876 unsigned long arg4, unsigned long arg5)
878 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
881 void security_task_to_inode(struct task_struct *p, struct inode *inode)
883 security_ops->task_to_inode(p, inode);
886 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
888 return security_ops->ipc_permission(ipcp, flag);
891 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
893 security_ops->ipc_getsecid(ipcp, secid);
896 int security_msg_msg_alloc(struct msg_msg *msg)
898 return security_ops->msg_msg_alloc_security(msg);
901 void security_msg_msg_free(struct msg_msg *msg)
903 security_ops->msg_msg_free_security(msg);
906 int security_msg_queue_alloc(struct msg_queue *msq)
908 return security_ops->msg_queue_alloc_security(msq);
911 void security_msg_queue_free(struct msg_queue *msq)
913 security_ops->msg_queue_free_security(msq);
916 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
918 return security_ops->msg_queue_associate(msq, msqflg);
921 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
923 return security_ops->msg_queue_msgctl(msq, cmd);
926 int security_msg_queue_msgsnd(struct msg_queue *msq,
927 struct msg_msg *msg, int msqflg)
929 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
932 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
933 struct task_struct *target, long type, int mode)
935 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
938 int security_shm_alloc(struct shmid_kernel *shp)
940 return security_ops->shm_alloc_security(shp);
943 void security_shm_free(struct shmid_kernel *shp)
945 security_ops->shm_free_security(shp);
948 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
950 return security_ops->shm_associate(shp, shmflg);
953 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
955 return security_ops->shm_shmctl(shp, cmd);
958 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
960 return security_ops->shm_shmat(shp, shmaddr, shmflg);
963 int security_sem_alloc(struct sem_array *sma)
965 return security_ops->sem_alloc_security(sma);
968 void security_sem_free(struct sem_array *sma)
970 security_ops->sem_free_security(sma);
973 int security_sem_associate(struct sem_array *sma, int semflg)
975 return security_ops->sem_associate(sma, semflg);
978 int security_sem_semctl(struct sem_array *sma, int cmd)
980 return security_ops->sem_semctl(sma, cmd);
983 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
984 unsigned nsops, int alter)
986 return security_ops->sem_semop(sma, sops, nsops, alter);
989 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
991 if (unlikely(inode && IS_PRIVATE(inode)))
992 return;
993 security_ops->d_instantiate(dentry, inode);
995 EXPORT_SYMBOL(security_d_instantiate);
997 int security_getprocattr(struct task_struct *p, char *name, char **value)
999 return security_ops->getprocattr(p, name, value);
1002 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1004 return security_ops->setprocattr(p, name, value, size);
1007 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1009 return security_ops->netlink_send(sk, skb);
1012 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1014 return security_ops->secid_to_secctx(secid, secdata, seclen);
1016 EXPORT_SYMBOL(security_secid_to_secctx);
1018 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1020 return security_ops->secctx_to_secid(secdata, seclen, secid);
1022 EXPORT_SYMBOL(security_secctx_to_secid);
1024 void security_release_secctx(char *secdata, u32 seclen)
1026 security_ops->release_secctx(secdata, seclen);
1028 EXPORT_SYMBOL(security_release_secctx);
1030 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1032 return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
1034 EXPORT_SYMBOL(security_inode_notifysecctx);
1036 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1038 return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1040 EXPORT_SYMBOL(security_inode_setsecctx);
1042 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1044 return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1046 EXPORT_SYMBOL(security_inode_getsecctx);
1048 #ifdef CONFIG_SECURITY_NETWORK
1050 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1052 return security_ops->unix_stream_connect(sock, other, newsk);
1054 EXPORT_SYMBOL(security_unix_stream_connect);
1056 int security_unix_may_send(struct socket *sock, struct socket *other)
1058 return security_ops->unix_may_send(sock, other);
1060 EXPORT_SYMBOL(security_unix_may_send);
1062 int security_socket_create(int family, int type, int protocol, int kern)
1064 return security_ops->socket_create(family, type, protocol, kern);
1067 int security_socket_post_create(struct socket *sock, int family,
1068 int type, int protocol, int kern)
1070 return security_ops->socket_post_create(sock, family, type,
1071 protocol, kern);
1074 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1076 return security_ops->socket_bind(sock, address, addrlen);
1079 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1081 return security_ops->socket_connect(sock, address, addrlen);
1084 int security_socket_listen(struct socket *sock, int backlog)
1086 return security_ops->socket_listen(sock, backlog);
1089 int security_socket_accept(struct socket *sock, struct socket *newsock)
1091 return security_ops->socket_accept(sock, newsock);
1094 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1096 return security_ops->socket_sendmsg(sock, msg, size);
1099 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1100 int size, int flags)
1102 return security_ops->socket_recvmsg(sock, msg, size, flags);
1105 int security_socket_getsockname(struct socket *sock)
1107 return security_ops->socket_getsockname(sock);
1110 int security_socket_getpeername(struct socket *sock)
1112 return security_ops->socket_getpeername(sock);
1115 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1117 return security_ops->socket_getsockopt(sock, level, optname);
1120 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1122 return security_ops->socket_setsockopt(sock, level, optname);
1125 int security_socket_shutdown(struct socket *sock, int how)
1127 return security_ops->socket_shutdown(sock, how);
1130 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1132 return security_ops->socket_sock_rcv_skb(sk, skb);
1134 EXPORT_SYMBOL(security_sock_rcv_skb);
1136 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1137 int __user *optlen, unsigned len)
1139 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1142 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1144 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1146 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1148 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1150 return security_ops->sk_alloc_security(sk, family, priority);
1153 void security_sk_free(struct sock *sk)
1155 security_ops->sk_free_security(sk);
1158 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1160 security_ops->sk_clone_security(sk, newsk);
1162 EXPORT_SYMBOL(security_sk_clone);
1164 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1166 security_ops->sk_getsecid(sk, &fl->flowi_secid);
1168 EXPORT_SYMBOL(security_sk_classify_flow);
1170 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1172 security_ops->req_classify_flow(req, fl);
1174 EXPORT_SYMBOL(security_req_classify_flow);
1176 void security_sock_graft(struct sock *sk, struct socket *parent)
1178 security_ops->sock_graft(sk, parent);
1180 EXPORT_SYMBOL(security_sock_graft);
1182 int security_inet_conn_request(struct sock *sk,
1183 struct sk_buff *skb, struct request_sock *req)
1185 return security_ops->inet_conn_request(sk, skb, req);
1187 EXPORT_SYMBOL(security_inet_conn_request);
1189 void security_inet_csk_clone(struct sock *newsk,
1190 const struct request_sock *req)
1192 security_ops->inet_csk_clone(newsk, req);
1195 void security_inet_conn_established(struct sock *sk,
1196 struct sk_buff *skb)
1198 security_ops->inet_conn_established(sk, skb);
1201 int security_secmark_relabel_packet(u32 secid)
1203 return security_ops->secmark_relabel_packet(secid);
1205 EXPORT_SYMBOL(security_secmark_relabel_packet);
1207 void security_secmark_refcount_inc(void)
1209 security_ops->secmark_refcount_inc();
1211 EXPORT_SYMBOL(security_secmark_refcount_inc);
1213 void security_secmark_refcount_dec(void)
1215 security_ops->secmark_refcount_dec();
1217 EXPORT_SYMBOL(security_secmark_refcount_dec);
1219 int security_tun_dev_create(void)
1221 return security_ops->tun_dev_create();
1223 EXPORT_SYMBOL(security_tun_dev_create);
1225 void security_tun_dev_post_create(struct sock *sk)
1227 return security_ops->tun_dev_post_create(sk);
1229 EXPORT_SYMBOL(security_tun_dev_post_create);
1231 int security_tun_dev_attach(struct sock *sk)
1233 return security_ops->tun_dev_attach(sk);
1235 EXPORT_SYMBOL(security_tun_dev_attach);
1237 #endif /* CONFIG_SECURITY_NETWORK */
1239 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1241 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1243 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1245 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1247 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1248 struct xfrm_sec_ctx **new_ctxp)
1250 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1253 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1255 security_ops->xfrm_policy_free_security(ctx);
1257 EXPORT_SYMBOL(security_xfrm_policy_free);
1259 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1261 return security_ops->xfrm_policy_delete_security(ctx);
1264 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1266 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1268 EXPORT_SYMBOL(security_xfrm_state_alloc);
1270 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1271 struct xfrm_sec_ctx *polsec, u32 secid)
1273 if (!polsec)
1274 return 0;
1276 * We want the context to be taken from secid which is usually
1277 * from the sock.
1279 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1282 int security_xfrm_state_delete(struct xfrm_state *x)
1284 return security_ops->xfrm_state_delete_security(x);
1286 EXPORT_SYMBOL(security_xfrm_state_delete);
1288 void security_xfrm_state_free(struct xfrm_state *x)
1290 security_ops->xfrm_state_free_security(x);
1293 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1295 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1298 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1299 struct xfrm_policy *xp,
1300 const struct flowi *fl)
1302 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1305 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1307 return security_ops->xfrm_decode_session(skb, secid, 1);
1310 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1312 int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1314 BUG_ON(rc);
1316 EXPORT_SYMBOL(security_skb_classify_flow);
1318 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1320 #ifdef CONFIG_KEYS
1322 int security_key_alloc(struct key *key, const struct cred *cred,
1323 unsigned long flags)
1325 return security_ops->key_alloc(key, cred, flags);
1328 void security_key_free(struct key *key)
1330 security_ops->key_free(key);
1333 int security_key_permission(key_ref_t key_ref,
1334 const struct cred *cred, key_perm_t perm)
1336 return security_ops->key_permission(key_ref, cred, perm);
1339 int security_key_getsecurity(struct key *key, char **_buffer)
1341 return security_ops->key_getsecurity(key, _buffer);
1344 #endif /* CONFIG_KEYS */
1346 #ifdef CONFIG_AUDIT
1348 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1350 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1353 int security_audit_rule_known(struct audit_krule *krule)
1355 return security_ops->audit_rule_known(krule);
1358 void security_audit_rule_free(void *lsmrule)
1360 security_ops->audit_rule_free(lsmrule);
1363 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1364 struct audit_context *actx)
1366 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1369 #endif /* CONFIG_AUDIT */