nexus: Initial checkin of Nexus - android native network management daemon.

    Initial skelaton

Signed-off-by: San Mehat <san@google.com>
diff --git a/nexus/NetworkManager.cpp b/nexus/NetworkManager.cpp
new file mode 100644
index 0000000..9c64945
--- /dev/null
+++ b/nexus/NetworkManager.cpp
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2008 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 <stdio.h>
+#include <errno.h>
+
+#define LOG_TAG "Nexus"
+
+#include <cutils/log.h>
+
+#include "NetworkManager.h"
+#include "CommandListener.h"
+#include "LoopController.h"
+#include "VpnController.h"
+
+#include "TiwlanWifiController.h"
+
+NetworkManager::NetworkManager() {
+    mListener = new CommandListener(this);
+    mFm = new FrameworkManager(mListener);
+    mControllers = new ControllerCollection();
+}
+
+int NetworkManager::run() {
+    LOGD("NetworkManager::start()");
+
+    // XXX: Factory needed
+    addController(new LoopController());
+    addController(new TiwlanWifiController("/system/lib/modules/wlan.ko", "wlan", ""));
+    addController(new VpnController());
+    //addController(new GenericController("rmnet0"));
+
+    if (startControllers()) {
+        LOGW("Unable to start all controllers (%s)", strerror(errno));
+    }
+    mFm->run();
+    return 0;
+}
+
+void NetworkManager::addController(Controller *c) {
+    mControllers->push_back(c);
+}
+
+int NetworkManager::startControllers() {
+    int rc = 0;
+    ControllerCollection::iterator i;
+
+    for (i = mControllers->begin(); i != mControllers->end(); ++i) {
+        int irc = (*i)->start();
+        LOGD("Controller '%s' start rc = %d", (*i)->getName(), irc);
+        if (irc && !rc) 
+            rc = irc;
+    }
+    return rc;
+}
+
+int NetworkManager::stopControllers() {
+    int rc = 0;
+    ControllerCollection::iterator i;
+
+    for (i = mControllers->begin(); i != mControllers->end(); ++i) {
+        int irc = (*i)->stop();
+        LOGD("Controller '%s' stop rc = %d", (*i)->getName(), irc);
+        if (irc && !rc) 
+            rc = irc;
+    }
+    return rc;
+}
+
+Controller *NetworkManager::findController(const char *name) {
+    ControllerCollection::iterator i;
+    for (i = mControllers->begin(); i != mControllers->end(); ++i) {
+        if (!strcmp((*i)->getName(), name))
+            return *i;
+    }
+    LOGW("Controller '%s' not found", name);
+    return NULL;
+}
+
+int NetworkManager::onInterfaceCreated(Controller *c, char *name) {
+    LOGD("Interface %s created by controller %s", name, c->getName());
+    return 0;
+}
+
+int NetworkManager::onInterfaceDestroyed(Controller *c, char *name) {
+    LOGD("Interface %s destroyed by controller %s", name, c->getName());
+    return 0;
+}