App ops: new native access API.

This is to help implementation of bug #8181262 and maybe
bug #8181261

Note the current code has not yet been tested; it is only
known to compile at this point.

Change-Id: I489674c96d0d3fc0ddacc92611931a19a9ee5230

1 files changed, 96 insertions, 0 deletions

diff --git a/libs/binder/AppOpsManager.cpp b/libs/binder/AppOpsManager.cpp
new file mode 100644
index 0000000..5d36dd2
--- /dev/null
+++ b/libs/binder/AppOpsManager.cpp
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#include <binder/AppOpsManager.h>
+#include <binder/IServiceManager.h>
+
+#include <utils/SystemClock.h>
+
+namespace android {
+
+static String16 _appops("appops");
+
+AppOpsManager::AppOpsManager()
+{
+}
+
+sp<IAppOpsService> AppOpsManager::getService()
+{
+    int64_t startTime = 0;
+    mLock.lock();
+    sp<IAppOpsService> service = mService;
+    while (true) {
+        if (service == NULL || !service->asBinder()->isBinderAlive()) {
+            sp<IBinder> binder = defaultServiceManager()->checkService(_appops);
+            if (binder == NULL) {
+                // Wait for the app ops service to come back...
+                if (startTime == 0) {
+                    startTime = uptimeMillis();
+                    ALOGI("Waiting for app ops service");
+                } else if ((uptimeMillis()-startTime) > 10000) {
+                    ALOGW("Waiting too long for app ops service, giving up");
+                    return NULL;
+                }
+                sleep(1);
+            } else {
+                service = interface_cast<IAppOpsService>(binder);
+                mService = service;
+            }
+        }
+    }
+    mLock.unlock();
+    return service;
+}
+
+int32_t AppOpsManager::checkOp(int32_t op, int32_t uid, const String16& callingPackage)
+{
+    sp<IAppOpsService> service = getService();
+    return service != NULL ? service->checkOperation(op, uid, callingPackage) : MODE_IGNORED;
+}
+
+int32_t AppOpsManager::noteOp(int32_t op, int32_t uid, const String16& callingPackage) {
+    sp<IAppOpsService> service = getService();
+    return service != NULL ? service->noteOperation(op, uid, callingPackage) : MODE_IGNORED;
+}
+
+int32_t AppOpsManager::startOp(int32_t op, int32_t uid, const String16& callingPackage) {
+    sp<IAppOpsService> service = getService();
+    return service != NULL ? service->startOperation(op, uid, callingPackage) : MODE_IGNORED;
+}
+
+void AppOpsManager::finishOp(int32_t op, int32_t uid, const String16& callingPackage) {
+    sp<IAppOpsService> service = getService();
+    if (service != NULL) {
+        service->finishOperation(op, uid, callingPackage);
+    }
+}
+
+void AppOpsManager::startWatchingMode(int32_t op, const String16& packageName,
+        const sp<IAppOpsCallback>& callback) {
+    sp<IAppOpsService> service = getService();
+    if (service != NULL) {
+        service->startWatchingMode(op, packageName, callback);
+    }
+}
+
+void AppOpsManager::stopWatchingMode(const sp<IAppOpsCallback>& callback) {
+    sp<IAppOpsService> service = getService();
+    if (service != NULL) {
+        service->stopWatchingMode(callback);
+    }
+}
+
+}; // namespace android