ONOS-1858, ONOS-1857, ONOS-1860, ONOS-1862, ONOS-1898 : SM-ONOS

Change-Id: I206e72521cf663466bfcc612e1896bb22d87da06
diff --git a/core/security/util/pom.xml b/core/security/util/pom.xml
new file mode 100644
index 0000000..a92beb6
--- /dev/null
+++ b/core/security/util/pom.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <artifactId>onos-security</artifactId>
+        <groupId>org.onosproject</groupId>
+        <version>1.2.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>onos-security-util</artifactId>
+    <packaging>bundle</packaging>
+
+</project>
diff --git a/core/security/util/src/main/java/org/onosproject/security/util/AppGuard.java b/core/security/util/src/main/java/org/onosproject/security/util/AppGuard.java
new file mode 100644
index 0000000..f6808f6
--- /dev/null
+++ b/core/security/util/src/main/java/org/onosproject/security/util/AppGuard.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.security.util;
+
+/**
+ * Checks if the caller has the required permission to call each API.
+ */
+public final class AppGuard {
+
+    private AppGuard() {
+    }
+
+    public static boolean check(String perm) {
+        SecurityManager sm = System.getSecurityManager();
+        if (sm != null) {
+            System.getSecurityManager().checkPermission(new AppPermission(perm));
+        }
+        return true;
+    }
+}
diff --git a/core/security/util/src/main/java/org/onosproject/security/util/AppPermission.java b/core/security/util/src/main/java/org/onosproject/security/util/AppPermission.java
new file mode 100644
index 0000000..c502764
--- /dev/null
+++ b/core/security/util/src/main/java/org/onosproject/security/util/AppPermission.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.security.util;
+
+import java.security.BasicPermission;
+
+/**
+ * Implementation of API access permission.
+ */
+public class AppPermission extends BasicPermission {
+
+    public AppPermission(String name) {
+        super(name.toUpperCase(), "");
+    }
+
+    public AppPermission(String name, String actions) {
+        super(name.toUpperCase(), actions);
+    }
+
+}