1 files changed, 74 insertions, 0 deletions

diff --git a/security/selinux/exports.c b/security/selinux/exports.c
new file mode 100644
index 000000000000..ae4c73eb3085
--- /dev/null
+++ b/security/selinux/exports.c
@@ -0,0 +1,74 @@
+/*
+ * SELinux services exported to the rest of the kernel.
+ *
+ * Author: James Morris <jmorris@redhat.com>
+ *
+ * Copyright (C) 2005 Red Hat, Inc., James Morris <jmorris@redhat.com>
+ * Copyright (C) 2006 Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
+ * Copyright (C) 2006 IBM Corporation, Timothy R. Chavez <tinytim@us.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/selinux.h>
+#include <linux/fs.h>
+#include <linux/ipc.h>
+
+#include "security.h"
+#include "objsec.h"
+
+void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid)
+{
+        struct task_security_struct *tsec = tsk->security;
+        if (selinux_enabled)
+                *ctxid = tsec->sid;
+        else
+                *ctxid = 0;
+}
+
+int selinux_ctxid_to_string(u32 ctxid, char **ctx, u32 *ctxlen)
+{
+        if (selinux_enabled)
+                return security_sid_to_context(ctxid, ctx, ctxlen);
+        else {
+                *ctx = NULL;
+                *ctxlen = 0;
+        }
+
+        return 0;
+}
+
+void selinux_get_inode_sid(const struct inode *inode, u32 *sid)
+{
+        if (selinux_enabled) {
+                struct inode_security_struct *isec = inode->i_security;
+                *sid = isec->sid;
+                return;
+        }
+        *sid = 0;
+}
+
+void selinux_get_ipc_sid(const struct kern_ipc_perm *ipcp, u32 *sid)
+{
+        if (selinux_enabled) {
+                struct ipc_security_struct *isec = ipcp->security;
+                *sid = isec->sid;
+                return;
+        }
+        *sid = 0;
+}
+
+void selinux_get_task_sid(struct task_struct *tsk, u32 *sid)
+{
+        if (selinux_enabled) {
+                struct task_security_struct *tsec = tsk->security;
+                *sid = tsec->sid;
+                return;
+        }
+        *sid = 0;
+}
+