security: Fix security_old_inode_init_security() when CONFIG_SECURITY is not set
[zen-stable.git] / security / security.c
blobe2f684aeb70c152a61038c0d2d19525774144d59
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>
23 #define MAX_LSM_EVM_XATTR 2
25 /* Boot-time LSM user choice */
26 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
27 CONFIG_DEFAULT_SECURITY;
29 static struct security_operations *security_ops;
30 static struct security_operations default_security_ops = {
31 .name = "default",
34 static inline int __init verify(struct security_operations *ops)
36 /* verify the security_operations structure exists */
37 if (!ops)
38 return -EINVAL;
39 security_fixup_ops(ops);
40 return 0;
43 static void __init do_security_initcalls(void)
45 initcall_t *call;
46 call = __security_initcall_start;
47 while (call < __security_initcall_end) {
48 (*call) ();
49 call++;
53 /**
54 * security_init - initializes the security framework
56 * This should be called early in the kernel initialization sequence.
58 int __init security_init(void)
60 printk(KERN_INFO "Security Framework initialized\n");
62 security_fixup_ops(&default_security_ops);
63 security_ops = &default_security_ops;
64 do_security_initcalls();
66 return 0;
69 void reset_security_ops(void)
71 security_ops = &default_security_ops;
74 /* Save user chosen LSM */
75 static int __init choose_lsm(char *str)
77 strncpy(chosen_lsm, str, SECURITY_NAME_MAX);
78 return 1;
80 __setup("security=", choose_lsm);
82 /**
83 * security_module_enable - Load given security module on boot ?
84 * @ops: a pointer to the struct security_operations that is to be checked.
86 * Each LSM must pass this method before registering its own operations
87 * to avoid security registration races. This method may also be used
88 * to check if your LSM is currently loaded during kernel initialization.
90 * Return true if:
91 * -The passed LSM is the one chosen by user at boot time,
92 * -or the passed LSM is configured as the default and the user did not
93 * choose an alternate LSM at boot time.
94 * Otherwise, return false.
96 int __init security_module_enable(struct security_operations *ops)
98 return !strcmp(ops->name, chosen_lsm);
102 * register_security - registers a security framework with the kernel
103 * @ops: a pointer to the struct security_options that is to be registered
105 * This function allows a security module to register itself with the
106 * kernel security subsystem. Some rudimentary checking is done on the @ops
107 * value passed to this function. You'll need to check first if your LSM
108 * is allowed to register its @ops by calling security_module_enable(@ops).
110 * If there is already a security module registered with the kernel,
111 * an error will be returned. Otherwise %0 is returned on success.
113 int __init register_security(struct security_operations *ops)
115 if (verify(ops)) {
116 printk(KERN_DEBUG "%s could not verify "
117 "security_operations structure.\n", __func__);
118 return -EINVAL;
121 if (security_ops != &default_security_ops)
122 return -EAGAIN;
124 security_ops = ops;
126 return 0;
129 /* Security operations */
131 int security_ptrace_access_check(struct task_struct *child, unsigned int mode)
133 return security_ops->ptrace_access_check(child, mode);
136 int security_ptrace_traceme(struct task_struct *parent)
138 return security_ops->ptrace_traceme(parent);
141 int security_capget(struct task_struct *target,
142 kernel_cap_t *effective,
143 kernel_cap_t *inheritable,
144 kernel_cap_t *permitted)
146 return security_ops->capget(target, effective, inheritable, permitted);
149 int security_capset(struct cred *new, const struct cred *old,
150 const kernel_cap_t *effective,
151 const kernel_cap_t *inheritable,
152 const kernel_cap_t *permitted)
154 return security_ops->capset(new, old,
155 effective, inheritable, permitted);
158 int security_capable(struct user_namespace *ns, const struct cred *cred,
159 int cap)
161 return security_ops->capable(current, cred, ns, cap,
162 SECURITY_CAP_AUDIT);
165 int security_real_capable(struct task_struct *tsk, struct user_namespace *ns,
166 int cap)
168 const struct cred *cred;
169 int ret;
171 cred = get_task_cred(tsk);
172 ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_AUDIT);
173 put_cred(cred);
174 return ret;
177 int security_real_capable_noaudit(struct task_struct *tsk,
178 struct user_namespace *ns, int cap)
180 const struct cred *cred;
181 int ret;
183 cred = get_task_cred(tsk);
184 ret = security_ops->capable(tsk, cred, ns, cap, SECURITY_CAP_NOAUDIT);
185 put_cred(cred);
186 return ret;
189 int security_quotactl(int cmds, int type, int id, struct super_block *sb)
191 return security_ops->quotactl(cmds, type, id, sb);
194 int security_quota_on(struct dentry *dentry)
196 return security_ops->quota_on(dentry);
199 int security_syslog(int type)
201 return security_ops->syslog(type);
204 int security_settime(const struct timespec *ts, const struct timezone *tz)
206 return security_ops->settime(ts, tz);
209 int security_vm_enough_memory(long pages)
211 WARN_ON(current->mm == NULL);
212 return security_ops->vm_enough_memory(current->mm, pages);
215 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
217 WARN_ON(mm == NULL);
218 return security_ops->vm_enough_memory(mm, pages);
221 int security_vm_enough_memory_kern(long pages)
223 /* If current->mm is a kernel thread then we will pass NULL,
224 for this specific case that is fine */
225 return security_ops->vm_enough_memory(current->mm, pages);
228 int security_bprm_set_creds(struct linux_binprm *bprm)
230 return security_ops->bprm_set_creds(bprm);
233 int security_bprm_check(struct linux_binprm *bprm)
235 int ret;
237 ret = security_ops->bprm_check_security(bprm);
238 if (ret)
239 return ret;
240 return ima_bprm_check(bprm);
243 void security_bprm_committing_creds(struct linux_binprm *bprm)
245 security_ops->bprm_committing_creds(bprm);
248 void security_bprm_committed_creds(struct linux_binprm *bprm)
250 security_ops->bprm_committed_creds(bprm);
253 int security_bprm_secureexec(struct linux_binprm *bprm)
255 return security_ops->bprm_secureexec(bprm);
258 int security_sb_alloc(struct super_block *sb)
260 return security_ops->sb_alloc_security(sb);
263 void security_sb_free(struct super_block *sb)
265 security_ops->sb_free_security(sb);
268 int security_sb_copy_data(char *orig, char *copy)
270 return security_ops->sb_copy_data(orig, copy);
272 EXPORT_SYMBOL(security_sb_copy_data);
274 int security_sb_remount(struct super_block *sb, void *data)
276 return security_ops->sb_remount(sb, data);
279 int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
281 return security_ops->sb_kern_mount(sb, flags, data);
284 int security_sb_show_options(struct seq_file *m, struct super_block *sb)
286 return security_ops->sb_show_options(m, sb);
289 int security_sb_statfs(struct dentry *dentry)
291 return security_ops->sb_statfs(dentry);
294 int security_sb_mount(char *dev_name, struct path *path,
295 char *type, unsigned long flags, void *data)
297 return security_ops->sb_mount(dev_name, path, type, flags, data);
300 int security_sb_umount(struct vfsmount *mnt, int flags)
302 return security_ops->sb_umount(mnt, flags);
305 int security_sb_pivotroot(struct path *old_path, struct path *new_path)
307 return security_ops->sb_pivotroot(old_path, new_path);
310 int security_sb_set_mnt_opts(struct super_block *sb,
311 struct security_mnt_opts *opts)
313 return security_ops->sb_set_mnt_opts(sb, opts);
315 EXPORT_SYMBOL(security_sb_set_mnt_opts);
317 void security_sb_clone_mnt_opts(const struct super_block *oldsb,
318 struct super_block *newsb)
320 security_ops->sb_clone_mnt_opts(oldsb, newsb);
322 EXPORT_SYMBOL(security_sb_clone_mnt_opts);
324 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
326 return security_ops->sb_parse_opts_str(options, opts);
328 EXPORT_SYMBOL(security_sb_parse_opts_str);
330 int security_inode_alloc(struct inode *inode)
332 inode->i_security = NULL;
333 return security_ops->inode_alloc_security(inode);
336 void security_inode_free(struct inode *inode)
338 integrity_inode_free(inode);
339 security_ops->inode_free_security(inode);
342 int security_inode_init_security(struct inode *inode, struct inode *dir,
343 const struct qstr *qstr,
344 const initxattrs initxattrs, void *fs_data)
346 struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
347 struct xattr *lsm_xattr, *evm_xattr, *xattr;
348 int ret;
350 if (unlikely(IS_PRIVATE(inode)))
351 return 0;
353 memset(new_xattrs, 0, sizeof new_xattrs);
354 if (!initxattrs)
355 return security_ops->inode_init_security(inode, dir, qstr,
356 NULL, NULL, NULL);
357 lsm_xattr = new_xattrs;
358 ret = security_ops->inode_init_security(inode, dir, qstr,
359 &lsm_xattr->name,
360 &lsm_xattr->value,
361 &lsm_xattr->value_len);
362 if (ret)
363 goto out;
365 evm_xattr = lsm_xattr + 1;
366 ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
367 if (ret)
368 goto out;
369 ret = initxattrs(inode, new_xattrs, fs_data);
370 out:
371 for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
372 kfree(xattr->name);
373 kfree(xattr->value);
375 return (ret == -EOPNOTSUPP) ? 0 : ret;
377 EXPORT_SYMBOL(security_inode_init_security);
379 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
380 const struct qstr *qstr, char **name,
381 void **value, size_t *len)
383 if (unlikely(IS_PRIVATE(inode)))
384 return -EOPNOTSUPP;
385 return security_ops->inode_init_security(inode, dir, qstr, name, value,
386 len);
388 EXPORT_SYMBOL(security_old_inode_init_security);
390 #ifdef CONFIG_SECURITY_PATH
391 int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
392 unsigned int dev)
394 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
395 return 0;
396 return security_ops->path_mknod(dir, dentry, mode, dev);
398 EXPORT_SYMBOL(security_path_mknod);
400 int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
402 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
403 return 0;
404 return security_ops->path_mkdir(dir, dentry, mode);
406 EXPORT_SYMBOL(security_path_mkdir);
408 int security_path_rmdir(struct path *dir, struct dentry *dentry)
410 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
411 return 0;
412 return security_ops->path_rmdir(dir, dentry);
415 int security_path_unlink(struct path *dir, struct dentry *dentry)
417 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
418 return 0;
419 return security_ops->path_unlink(dir, dentry);
421 EXPORT_SYMBOL(security_path_unlink);
423 int security_path_symlink(struct path *dir, struct dentry *dentry,
424 const char *old_name)
426 if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
427 return 0;
428 return security_ops->path_symlink(dir, dentry, old_name);
431 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
432 struct dentry *new_dentry)
434 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
435 return 0;
436 return security_ops->path_link(old_dentry, new_dir, new_dentry);
439 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
440 struct path *new_dir, struct dentry *new_dentry)
442 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
443 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
444 return 0;
445 return security_ops->path_rename(old_dir, old_dentry, new_dir,
446 new_dentry);
448 EXPORT_SYMBOL(security_path_rename);
450 int security_path_truncate(struct path *path)
452 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
453 return 0;
454 return security_ops->path_truncate(path);
457 int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
458 mode_t mode)
460 if (unlikely(IS_PRIVATE(dentry->d_inode)))
461 return 0;
462 return security_ops->path_chmod(dentry, mnt, mode);
465 int security_path_chown(struct path *path, uid_t uid, gid_t gid)
467 if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
468 return 0;
469 return security_ops->path_chown(path, uid, gid);
472 int security_path_chroot(struct path *path)
474 return security_ops->path_chroot(path);
476 #endif
478 int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
480 if (unlikely(IS_PRIVATE(dir)))
481 return 0;
482 return security_ops->inode_create(dir, dentry, mode);
484 EXPORT_SYMBOL_GPL(security_inode_create);
486 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
487 struct dentry *new_dentry)
489 if (unlikely(IS_PRIVATE(old_dentry->d_inode)))
490 return 0;
491 return security_ops->inode_link(old_dentry, dir, new_dentry);
494 int security_inode_unlink(struct inode *dir, struct dentry *dentry)
496 if (unlikely(IS_PRIVATE(dentry->d_inode)))
497 return 0;
498 return security_ops->inode_unlink(dir, dentry);
501 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
502 const char *old_name)
504 if (unlikely(IS_PRIVATE(dir)))
505 return 0;
506 return security_ops->inode_symlink(dir, dentry, old_name);
509 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
511 if (unlikely(IS_PRIVATE(dir)))
512 return 0;
513 return security_ops->inode_mkdir(dir, dentry, mode);
515 EXPORT_SYMBOL_GPL(security_inode_mkdir);
517 int security_inode_rmdir(struct inode *dir, struct dentry *dentry)
519 if (unlikely(IS_PRIVATE(dentry->d_inode)))
520 return 0;
521 return security_ops->inode_rmdir(dir, dentry);
524 int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
526 if (unlikely(IS_PRIVATE(dir)))
527 return 0;
528 return security_ops->inode_mknod(dir, dentry, mode, dev);
531 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
532 struct inode *new_dir, struct dentry *new_dentry)
534 if (unlikely(IS_PRIVATE(old_dentry->d_inode) ||
535 (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode))))
536 return 0;
537 return security_ops->inode_rename(old_dir, old_dentry,
538 new_dir, new_dentry);
541 int security_inode_readlink(struct dentry *dentry)
543 if (unlikely(IS_PRIVATE(dentry->d_inode)))
544 return 0;
545 return security_ops->inode_readlink(dentry);
548 int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd)
550 if (unlikely(IS_PRIVATE(dentry->d_inode)))
551 return 0;
552 return security_ops->inode_follow_link(dentry, nd);
555 int security_inode_permission(struct inode *inode, int mask)
557 if (unlikely(IS_PRIVATE(inode)))
558 return 0;
559 return security_ops->inode_permission(inode, mask);
562 int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
564 int ret;
566 if (unlikely(IS_PRIVATE(dentry->d_inode)))
567 return 0;
568 ret = security_ops->inode_setattr(dentry, attr);
569 if (ret)
570 return ret;
571 return evm_inode_setattr(dentry, attr);
573 EXPORT_SYMBOL_GPL(security_inode_setattr);
575 int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
577 if (unlikely(IS_PRIVATE(dentry->d_inode)))
578 return 0;
579 return security_ops->inode_getattr(mnt, dentry);
582 int security_inode_setxattr(struct dentry *dentry, const char *name,
583 const void *value, size_t size, int flags)
585 int ret;
587 if (unlikely(IS_PRIVATE(dentry->d_inode)))
588 return 0;
589 ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
590 if (ret)
591 return ret;
592 return evm_inode_setxattr(dentry, name, value, size);
595 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
596 const void *value, size_t size, int flags)
598 if (unlikely(IS_PRIVATE(dentry->d_inode)))
599 return;
600 security_ops->inode_post_setxattr(dentry, name, value, size, flags);
601 evm_inode_post_setxattr(dentry, name, value, size);
604 int security_inode_getxattr(struct dentry *dentry, const char *name)
606 if (unlikely(IS_PRIVATE(dentry->d_inode)))
607 return 0;
608 return security_ops->inode_getxattr(dentry, name);
611 int security_inode_listxattr(struct dentry *dentry)
613 if (unlikely(IS_PRIVATE(dentry->d_inode)))
614 return 0;
615 return security_ops->inode_listxattr(dentry);
618 int security_inode_removexattr(struct dentry *dentry, const char *name)
620 int ret;
622 if (unlikely(IS_PRIVATE(dentry->d_inode)))
623 return 0;
624 ret = security_ops->inode_removexattr(dentry, name);
625 if (ret)
626 return ret;
627 return evm_inode_removexattr(dentry, name);
630 int security_inode_need_killpriv(struct dentry *dentry)
632 return security_ops->inode_need_killpriv(dentry);
635 int security_inode_killpriv(struct dentry *dentry)
637 return security_ops->inode_killpriv(dentry);
640 int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
642 if (unlikely(IS_PRIVATE(inode)))
643 return -EOPNOTSUPP;
644 return security_ops->inode_getsecurity(inode, name, buffer, alloc);
647 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
649 if (unlikely(IS_PRIVATE(inode)))
650 return -EOPNOTSUPP;
651 return security_ops->inode_setsecurity(inode, name, value, size, flags);
654 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
656 if (unlikely(IS_PRIVATE(inode)))
657 return 0;
658 return security_ops->inode_listsecurity(inode, buffer, buffer_size);
661 void security_inode_getsecid(const struct inode *inode, u32 *secid)
663 security_ops->inode_getsecid(inode, secid);
666 int security_file_permission(struct file *file, int mask)
668 int ret;
670 ret = security_ops->file_permission(file, mask);
671 if (ret)
672 return ret;
674 return fsnotify_perm(file, mask);
677 int security_file_alloc(struct file *file)
679 return security_ops->file_alloc_security(file);
682 void security_file_free(struct file *file)
684 security_ops->file_free_security(file);
687 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
689 return security_ops->file_ioctl(file, cmd, arg);
692 int security_file_mmap(struct file *file, unsigned long reqprot,
693 unsigned long prot, unsigned long flags,
694 unsigned long addr, unsigned long addr_only)
696 int ret;
698 ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
699 if (ret)
700 return ret;
701 return ima_file_mmap(file, prot);
704 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
705 unsigned long prot)
707 return security_ops->file_mprotect(vma, reqprot, prot);
710 int security_file_lock(struct file *file, unsigned int cmd)
712 return security_ops->file_lock(file, cmd);
715 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg)
717 return security_ops->file_fcntl(file, cmd, arg);
720 int security_file_set_fowner(struct file *file)
722 return security_ops->file_set_fowner(file);
725 int security_file_send_sigiotask(struct task_struct *tsk,
726 struct fown_struct *fown, int sig)
728 return security_ops->file_send_sigiotask(tsk, fown, sig);
731 int security_file_receive(struct file *file)
733 return security_ops->file_receive(file);
736 int security_dentry_open(struct file *file, const struct cred *cred)
738 int ret;
740 ret = security_ops->dentry_open(file, cred);
741 if (ret)
742 return ret;
744 return fsnotify_perm(file, MAY_OPEN);
747 int security_task_create(unsigned long clone_flags)
749 return security_ops->task_create(clone_flags);
752 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
754 return security_ops->cred_alloc_blank(cred, gfp);
757 void security_cred_free(struct cred *cred)
759 security_ops->cred_free(cred);
762 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp)
764 return security_ops->cred_prepare(new, old, gfp);
767 void security_transfer_creds(struct cred *new, const struct cred *old)
769 security_ops->cred_transfer(new, old);
772 int security_kernel_act_as(struct cred *new, u32 secid)
774 return security_ops->kernel_act_as(new, secid);
777 int security_kernel_create_files_as(struct cred *new, struct inode *inode)
779 return security_ops->kernel_create_files_as(new, inode);
782 int security_kernel_module_request(char *kmod_name)
784 return security_ops->kernel_module_request(kmod_name);
787 int security_task_fix_setuid(struct cred *new, const struct cred *old,
788 int flags)
790 return security_ops->task_fix_setuid(new, old, flags);
793 int security_task_setpgid(struct task_struct *p, pid_t pgid)
795 return security_ops->task_setpgid(p, pgid);
798 int security_task_getpgid(struct task_struct *p)
800 return security_ops->task_getpgid(p);
803 int security_task_getsid(struct task_struct *p)
805 return security_ops->task_getsid(p);
808 void security_task_getsecid(struct task_struct *p, u32 *secid)
810 security_ops->task_getsecid(p, secid);
812 EXPORT_SYMBOL(security_task_getsecid);
814 int security_task_setnice(struct task_struct *p, int nice)
816 return security_ops->task_setnice(p, nice);
819 int security_task_setioprio(struct task_struct *p, int ioprio)
821 return security_ops->task_setioprio(p, ioprio);
824 int security_task_getioprio(struct task_struct *p)
826 return security_ops->task_getioprio(p);
829 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
830 struct rlimit *new_rlim)
832 return security_ops->task_setrlimit(p, resource, new_rlim);
835 int security_task_setscheduler(struct task_struct *p)
837 return security_ops->task_setscheduler(p);
840 int security_task_getscheduler(struct task_struct *p)
842 return security_ops->task_getscheduler(p);
845 int security_task_movememory(struct task_struct *p)
847 return security_ops->task_movememory(p);
850 int security_task_kill(struct task_struct *p, struct siginfo *info,
851 int sig, u32 secid)
853 return security_ops->task_kill(p, info, sig, secid);
856 int security_task_wait(struct task_struct *p)
858 return security_ops->task_wait(p);
861 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
862 unsigned long arg4, unsigned long arg5)
864 return security_ops->task_prctl(option, arg2, arg3, arg4, arg5);
867 void security_task_to_inode(struct task_struct *p, struct inode *inode)
869 security_ops->task_to_inode(p, inode);
872 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
874 return security_ops->ipc_permission(ipcp, flag);
877 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
879 security_ops->ipc_getsecid(ipcp, secid);
882 int security_msg_msg_alloc(struct msg_msg *msg)
884 return security_ops->msg_msg_alloc_security(msg);
887 void security_msg_msg_free(struct msg_msg *msg)
889 security_ops->msg_msg_free_security(msg);
892 int security_msg_queue_alloc(struct msg_queue *msq)
894 return security_ops->msg_queue_alloc_security(msq);
897 void security_msg_queue_free(struct msg_queue *msq)
899 security_ops->msg_queue_free_security(msq);
902 int security_msg_queue_associate(struct msg_queue *msq, int msqflg)
904 return security_ops->msg_queue_associate(msq, msqflg);
907 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
909 return security_ops->msg_queue_msgctl(msq, cmd);
912 int security_msg_queue_msgsnd(struct msg_queue *msq,
913 struct msg_msg *msg, int msqflg)
915 return security_ops->msg_queue_msgsnd(msq, msg, msqflg);
918 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
919 struct task_struct *target, long type, int mode)
921 return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode);
924 int security_shm_alloc(struct shmid_kernel *shp)
926 return security_ops->shm_alloc_security(shp);
929 void security_shm_free(struct shmid_kernel *shp)
931 security_ops->shm_free_security(shp);
934 int security_shm_associate(struct shmid_kernel *shp, int shmflg)
936 return security_ops->shm_associate(shp, shmflg);
939 int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
941 return security_ops->shm_shmctl(shp, cmd);
944 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg)
946 return security_ops->shm_shmat(shp, shmaddr, shmflg);
949 int security_sem_alloc(struct sem_array *sma)
951 return security_ops->sem_alloc_security(sma);
954 void security_sem_free(struct sem_array *sma)
956 security_ops->sem_free_security(sma);
959 int security_sem_associate(struct sem_array *sma, int semflg)
961 return security_ops->sem_associate(sma, semflg);
964 int security_sem_semctl(struct sem_array *sma, int cmd)
966 return security_ops->sem_semctl(sma, cmd);
969 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
970 unsigned nsops, int alter)
972 return security_ops->sem_semop(sma, sops, nsops, alter);
975 void security_d_instantiate(struct dentry *dentry, struct inode *inode)
977 if (unlikely(inode && IS_PRIVATE(inode)))
978 return;
979 security_ops->d_instantiate(dentry, inode);
981 EXPORT_SYMBOL(security_d_instantiate);
983 int security_getprocattr(struct task_struct *p, char *name, char **value)
985 return security_ops->getprocattr(p, name, value);
988 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
990 return security_ops->setprocattr(p, name, value, size);
993 int security_netlink_send(struct sock *sk, struct sk_buff *skb)
995 return security_ops->netlink_send(sk, skb);
998 int security_netlink_recv(struct sk_buff *skb, int cap)
1000 return security_ops->netlink_recv(skb, cap);
1002 EXPORT_SYMBOL(security_netlink_recv);
1004 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1006 return security_ops->secid_to_secctx(secid, secdata, seclen);
1008 EXPORT_SYMBOL(security_secid_to_secctx);
1010 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
1012 return security_ops->secctx_to_secid(secdata, seclen, secid);
1014 EXPORT_SYMBOL(security_secctx_to_secid);
1016 void security_release_secctx(char *secdata, u32 seclen)
1018 security_ops->release_secctx(secdata, seclen);
1020 EXPORT_SYMBOL(security_release_secctx);
1022 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1024 return security_ops->inode_notifysecctx(inode, ctx, ctxlen);
1026 EXPORT_SYMBOL(security_inode_notifysecctx);
1028 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1030 return security_ops->inode_setsecctx(dentry, ctx, ctxlen);
1032 EXPORT_SYMBOL(security_inode_setsecctx);
1034 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1036 return security_ops->inode_getsecctx(inode, ctx, ctxlen);
1038 EXPORT_SYMBOL(security_inode_getsecctx);
1040 #ifdef CONFIG_SECURITY_NETWORK
1042 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk)
1044 return security_ops->unix_stream_connect(sock, other, newsk);
1046 EXPORT_SYMBOL(security_unix_stream_connect);
1048 int security_unix_may_send(struct socket *sock, struct socket *other)
1050 return security_ops->unix_may_send(sock, other);
1052 EXPORT_SYMBOL(security_unix_may_send);
1054 int security_socket_create(int family, int type, int protocol, int kern)
1056 return security_ops->socket_create(family, type, protocol, kern);
1059 int security_socket_post_create(struct socket *sock, int family,
1060 int type, int protocol, int kern)
1062 return security_ops->socket_post_create(sock, family, type,
1063 protocol, kern);
1066 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen)
1068 return security_ops->socket_bind(sock, address, addrlen);
1071 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen)
1073 return security_ops->socket_connect(sock, address, addrlen);
1076 int security_socket_listen(struct socket *sock, int backlog)
1078 return security_ops->socket_listen(sock, backlog);
1081 int security_socket_accept(struct socket *sock, struct socket *newsock)
1083 return security_ops->socket_accept(sock, newsock);
1086 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
1088 return security_ops->socket_sendmsg(sock, msg, size);
1091 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1092 int size, int flags)
1094 return security_ops->socket_recvmsg(sock, msg, size, flags);
1097 int security_socket_getsockname(struct socket *sock)
1099 return security_ops->socket_getsockname(sock);
1102 int security_socket_getpeername(struct socket *sock)
1104 return security_ops->socket_getpeername(sock);
1107 int security_socket_getsockopt(struct socket *sock, int level, int optname)
1109 return security_ops->socket_getsockopt(sock, level, optname);
1112 int security_socket_setsockopt(struct socket *sock, int level, int optname)
1114 return security_ops->socket_setsockopt(sock, level, optname);
1117 int security_socket_shutdown(struct socket *sock, int how)
1119 return security_ops->socket_shutdown(sock, how);
1122 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
1124 return security_ops->socket_sock_rcv_skb(sk, skb);
1126 EXPORT_SYMBOL(security_sock_rcv_skb);
1128 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1129 int __user *optlen, unsigned len)
1131 return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
1134 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1136 return security_ops->socket_getpeersec_dgram(sock, skb, secid);
1138 EXPORT_SYMBOL(security_socket_getpeersec_dgram);
1140 int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1142 return security_ops->sk_alloc_security(sk, family, priority);
1145 void security_sk_free(struct sock *sk)
1147 security_ops->sk_free_security(sk);
1150 void security_sk_clone(const struct sock *sk, struct sock *newsk)
1152 security_ops->sk_clone_security(sk, newsk);
1154 EXPORT_SYMBOL(security_sk_clone);
1156 void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1158 security_ops->sk_getsecid(sk, &fl->flowi_secid);
1160 EXPORT_SYMBOL(security_sk_classify_flow);
1162 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1164 security_ops->req_classify_flow(req, fl);
1166 EXPORT_SYMBOL(security_req_classify_flow);
1168 void security_sock_graft(struct sock *sk, struct socket *parent)
1170 security_ops->sock_graft(sk, parent);
1172 EXPORT_SYMBOL(security_sock_graft);
1174 int security_inet_conn_request(struct sock *sk,
1175 struct sk_buff *skb, struct request_sock *req)
1177 return security_ops->inet_conn_request(sk, skb, req);
1179 EXPORT_SYMBOL(security_inet_conn_request);
1181 void security_inet_csk_clone(struct sock *newsk,
1182 const struct request_sock *req)
1184 security_ops->inet_csk_clone(newsk, req);
1187 void security_inet_conn_established(struct sock *sk,
1188 struct sk_buff *skb)
1190 security_ops->inet_conn_established(sk, skb);
1193 int security_secmark_relabel_packet(u32 secid)
1195 return security_ops->secmark_relabel_packet(secid);
1197 EXPORT_SYMBOL(security_secmark_relabel_packet);
1199 void security_secmark_refcount_inc(void)
1201 security_ops->secmark_refcount_inc();
1203 EXPORT_SYMBOL(security_secmark_refcount_inc);
1205 void security_secmark_refcount_dec(void)
1207 security_ops->secmark_refcount_dec();
1209 EXPORT_SYMBOL(security_secmark_refcount_dec);
1211 int security_tun_dev_create(void)
1213 return security_ops->tun_dev_create();
1215 EXPORT_SYMBOL(security_tun_dev_create);
1217 void security_tun_dev_post_create(struct sock *sk)
1219 return security_ops->tun_dev_post_create(sk);
1221 EXPORT_SYMBOL(security_tun_dev_post_create);
1223 int security_tun_dev_attach(struct sock *sk)
1225 return security_ops->tun_dev_attach(sk);
1227 EXPORT_SYMBOL(security_tun_dev_attach);
1229 #endif /* CONFIG_SECURITY_NETWORK */
1231 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1233 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
1235 return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx);
1237 EXPORT_SYMBOL(security_xfrm_policy_alloc);
1239 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
1240 struct xfrm_sec_ctx **new_ctxp)
1242 return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp);
1245 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1247 security_ops->xfrm_policy_free_security(ctx);
1249 EXPORT_SYMBOL(security_xfrm_policy_free);
1251 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1253 return security_ops->xfrm_policy_delete_security(ctx);
1256 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
1258 return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
1260 EXPORT_SYMBOL(security_xfrm_state_alloc);
1262 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1263 struct xfrm_sec_ctx *polsec, u32 secid)
1265 if (!polsec)
1266 return 0;
1268 * We want the context to be taken from secid which is usually
1269 * from the sock.
1271 return security_ops->xfrm_state_alloc_security(x, NULL, secid);
1274 int security_xfrm_state_delete(struct xfrm_state *x)
1276 return security_ops->xfrm_state_delete_security(x);
1278 EXPORT_SYMBOL(security_xfrm_state_delete);
1280 void security_xfrm_state_free(struct xfrm_state *x)
1282 security_ops->xfrm_state_free_security(x);
1285 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1287 return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir);
1290 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1291 struct xfrm_policy *xp,
1292 const struct flowi *fl)
1294 return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
1297 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1299 return security_ops->xfrm_decode_session(skb, secid, 1);
1302 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1304 int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
1306 BUG_ON(rc);
1308 EXPORT_SYMBOL(security_skb_classify_flow);
1310 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1312 #ifdef CONFIG_KEYS
1314 int security_key_alloc(struct key *key, const struct cred *cred,
1315 unsigned long flags)
1317 return security_ops->key_alloc(key, cred, flags);
1320 void security_key_free(struct key *key)
1322 security_ops->key_free(key);
1325 int security_key_permission(key_ref_t key_ref,
1326 const struct cred *cred, key_perm_t perm)
1328 return security_ops->key_permission(key_ref, cred, perm);
1331 int security_key_getsecurity(struct key *key, char **_buffer)
1333 return security_ops->key_getsecurity(key, _buffer);
1336 #endif /* CONFIG_KEYS */
1338 #ifdef CONFIG_AUDIT
1340 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
1342 return security_ops->audit_rule_init(field, op, rulestr, lsmrule);
1345 int security_audit_rule_known(struct audit_krule *krule)
1347 return security_ops->audit_rule_known(krule);
1350 void security_audit_rule_free(void *lsmrule)
1352 security_ops->audit_rule_free(lsmrule);
1355 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1356 struct audit_context *actx)
1358 return security_ops->audit_rule_match(secid, field, op, lsmrule, actx);
1361 #endif /* CONFIG_AUDIT */