Add ability to modify credential via shell command

Test: adb shell locksettings set-pattern 1234
Test: adb shell locksettings set-pin --old 1234 1234
Test: adb shell locksettings set-password --old 1234 1234
Test: adb shell locksettings clear --old 1234
Test: runtest frameworks-services -c
com.android.server.LockSettingsShellCommandTest

Change-Id: I8f541effc7eab0d7453cd9a9b46c280a6425e258

1 files changed, 65 insertions, 0 deletions

diff --git a/cmds/locksettings/src/com/android/commands/locksettings/LockSettingsCmd.java b/cmds/locksettings/src/com/android/commands/locksettings/LockSettingsCmd.java
new file mode 100644
index 000000000000..1e426d62e4e0
--- /dev/null
+++ b/cmds/locksettings/src/com/android/commands/locksettings/LockSettingsCmd.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * 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 com.android.commands.locksettings;
+
+import android.os.ResultReceiver;
+import android.os.ServiceManager;
+import android.os.ShellCallback;
+
+import com.android.internal.os.BaseCommand;
+import com.android.internal.widget.ILockSettings;
+
+import java.io.FileDescriptor;
+import java.io.PrintStream;
+
+public final class LockSettingsCmd extends BaseCommand {
+
+    private static final String USAGE =
+            "usage: locksettings set-pattern [--old OLD_CREDENTIAL] NEW_PATTERN\n" +
+            "       locksettings set-pin [--old OLD_CREDENTIAL] NEW_PIN\n" +
+            "       locksettings set-password [--old OLD_CREDENTIAL] NEW_PASSWORD\n" +
+            "       locksettings clear [--old OLD_CREDENTIAL]\n" +
+            "\n" +
+            "locksettings set-pattern: sets a pattern\n" +
+            "    A pattern is specified by a non-separated list of numbers that index the cell\n" +
+            "    on the pattern in a 1-based manner in left to right and top to bottom order,\n" +
+            "    i.e. the top-left cell is indexed with 1, whereas the bottom-right cell\n" +
+            "    is indexed with 9. Example: 1234\n" +
+            "\n" +
+            "locksettings set-pin: sets a PIN\n" +
+            "\n" +
+            "locksettings set-password: sets a password\n" +
+            "\n" +
+            "locksettings clear: clears the unlock credential\n";
+
+    public static void main(String[] args) {
+        (new LockSettingsCmd()).run(args);
+    }
+
+    @Override
+    public void onShowUsage(PrintStream out) {
+        out.println(USAGE);
+    }
+
+    @Override
+    public void onRun() throws Exception {
+        ILockSettings lockSettings = ILockSettings.Stub.asInterface(
+                ServiceManager.getService("lock_settings"));
+        lockSettings.asBinder().shellCommand(FileDescriptor.in, FileDescriptor.out,
+                FileDescriptor.err, getRawArgs(), new ShellCallback(), new ResultReceiver(null) {});
+    }
+}