2 * SELinux services exported to the rest of the kernel.
4 * Author: James Morris <jmorris@redhat.com>
6 * Copyright (C) 2005 Red Hat, Inc., James Morris <jmorris@redhat.com>
7 * Copyright (C) 2006 Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
8 * Copyright (C) 2006 IBM Corporation, Timothy R. Chavez <tinytim@us.ibm.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2,
12 * as published by the Free Software Foundation.
14 #include <linux/types.h>
15 #include <linux/kernel.h>
16 #include <linux/module.h>
17 #include <linux/selinux.h>
19 #include <linux/ipc.h>
20 #include <asm/atomic.h>
25 /* SECMARK reference count */
26 extern atomic_t selinux_secmark_refcount;
28 int selinux_string_to_sid(char *str, u32 *sid)
31 return security_context_to_sid(str, strlen(str), sid);
37 EXPORT_SYMBOL_GPL(selinux_string_to_sid);
39 int selinux_secmark_relabel_packet_permission(u32 sid)
41 if (selinux_enabled) {
42 struct task_security_struct *tsec = current->security;
44 return avc_has_perm(tsec->sid, sid, SECCLASS_PACKET,
45 PACKET__RELABELTO, NULL);
49 EXPORT_SYMBOL_GPL(selinux_secmark_relabel_packet_permission);
51 void selinux_secmark_refcount_inc(void)
53 atomic_inc(&selinux_secmark_refcount);
55 EXPORT_SYMBOL_GPL(selinux_secmark_refcount_inc);
57 void selinux_secmark_refcount_dec(void)
59 atomic_dec(&selinux_secmark_refcount);
61 EXPORT_SYMBOL_GPL(selinux_secmark_refcount_dec);