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authorDarrel Goeddel <dgoeddel@trustedcs.com>2006-02-24 15:44:05 -0600
committerAl Viro <viro@zeniv.linux.org.uk>2006-05-01 06:06:24 -0400
commit376bd9cb357ec945ac893feaeb63af7370a6e70b (patch)
tree7e2848792982dfe30e19a600a41fa5cb49ee6e6e /security/selinux/exports.c
parent97e94c453073a2aba4bb5e0825ddc5e923debf11 (diff)
downloadlinux-2.6.38-lt-ux500-376bd9cb357ec945ac893feaeb63af7370a6e70b.tar.gz
[PATCH] support for context based audit filtering
The following patch provides selinux interfaces that will allow the audit system to perform filtering based on the process context (user, role, type, sensitivity, and clearance). These interfaces will allow the selinux module to perform efficient matches based on lower level selinux constructs, rather than relying on context retrievals and string comparisons within the audit module. It also allows for dominance checks on the mls portion of the contexts that are impossible with only string comparisons. Signed-off-by: Darrel Goeddel <dgoeddel@trustedcs.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'security/selinux/exports.c')
-rw-r--r--security/selinux/exports.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/security/selinux/exports.c b/security/selinux/exports.c
new file mode 100644
index 00000000000..333c4c7824d
--- /dev/null
+++ b/security/selinux/exports.c
@@ -0,0 +1,28 @@
+/*
+ * 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>
+ *
+ * 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 "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;
+}