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/*
* 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 "InterfaceConfig.h"
#include "DhcpClient.h"
#include "DhcpState.h"
#include "DhcpEvent.h"
#include "ResponseCode.h"
NetworkManager *NetworkManager::sInstance = NULL;
NetworkManager *NetworkManager::Instance() {
if (!sInstance)
sInstance = new NetworkManager(new PropertyManager());
return sInstance;
}
NetworkManager::NetworkManager(PropertyManager *propMngr) {
mBroadcaster = NULL;
mControllerBindings = new ControllerBindingCollection();
mPropMngr = propMngr;
mLastDhcpState = DhcpState::INIT;
mDhcp = new DhcpClient(this);
}
NetworkManager::~NetworkManager() {
}
int NetworkManager::run() {
if (startControllers()) {
LOGW("Unable to start all controllers (%s)", strerror(errno));
}
return 0;
}
int NetworkManager::attachController(Controller *c) {
ControllerBinding *cb = new ControllerBinding(c);
mControllerBindings->push_back(cb);
return 0;
}
int NetworkManager::startControllers() {
int rc = 0;
ControllerBindingCollection::iterator it;
for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
int irc = (*it)->getController()->start();
if (irc && !rc)
rc = irc;
}
return rc;
}
int NetworkManager::stopControllers() {
int rc = 0;
ControllerBindingCollection::iterator it;
for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
int irc = (*it)->getController()->stop();
if (irc && !rc)
rc = irc;
}
return rc;
}
NetworkManager::ControllerBinding *NetworkManager::lookupBinding(Controller *c) {
ControllerBindingCollection::iterator it;
for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
if ((*it)->getController() == c)
return (*it);
}
errno = ENOENT;
return NULL;
}
Controller *NetworkManager::findController(const char *name) {
ControllerBindingCollection::iterator it;
for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) {
if (!strcasecmp((*it)->getController()->getName(), name))
return (*it)->getController();
}
errno = ENOENT;
return NULL;
}
void NetworkManager::onInterfaceConnected(Controller *c) {
LOGD("Controller %s interface %s connected", c->getName(), c->getBoundInterface());
if (mDhcp->start(c)) {
LOGE("Failed to start DHCP (%s)", strerror(errno));
return;
}
}
void NetworkManager::onInterfaceDisconnected(Controller *c) {
LOGD("Controller %s interface %s disconnected", c->getName(),
c->getBoundInterface());
mDhcp->stop();
}
void NetworkManager::onControllerSuspending(Controller *c) {
LOGD("Controller %s interface %s suspending", c->getName(),
c->getBoundInterface());
mDhcp->stop();
}
void NetworkManager::onControllerResumed(Controller *c) {
LOGD("Controller %s interface %s resumed", c->getName(),
c->getBoundInterface());
}
void NetworkManager::onDhcpStateChanged(Controller *c, int state) {
char tmp[255];
char tmp2[255];
LOGD("onDhcpStateChanged(%s -> %s)",
DhcpState::toString(mLastDhcpState, tmp, sizeof(tmp)),
DhcpState::toString(state, tmp2, sizeof(tmp2)));
switch(state) {
case DhcpState::BOUND:
// Refresh the 'net.xxx' for the controller
break;
case DhcpState::RENEWING:
break;
default:
break;
}
char *tmp3;
asprintf(&tmp3,
"DHCP state changed from %d (%s) -> %d (%s)",
mLastDhcpState,
DhcpState::toString(mLastDhcpState, tmp, sizeof(tmp)),
state,
DhcpState::toString(state, tmp2, sizeof(tmp2)));
getBroadcaster()->sendBroadcast(ResponseCode::DhcpStateChange,
tmp3,
false);
free(tmp3);
mLastDhcpState = state;
}
void NetworkManager::onDhcpEvent(Controller *c, int evt) {
char tmp[64];
LOGD("onDhcpEvent(%s)", DhcpEvent::toString(evt, tmp, sizeof(tmp)));
}
void NetworkManager::onDhcpLeaseUpdated(Controller *c, struct in_addr *addr,
struct in_addr *net,
struct in_addr *brd,
struct in_addr *gw,
struct in_addr *dns1,
struct in_addr *dns2) {
ControllerBinding *bind = lookupBinding(c);
if (!bind->getCurrentCfg())
bind->setCurrentCfg(new InterfaceConfig(true));
bind->getCurrentCfg()->setIp(addr);
bind->getCurrentCfg()->setNetmask(net);
bind->getCurrentCfg()->setGateway(gw);
bind->getCurrentCfg()->setBroadcast(brd);
bind->getCurrentCfg()->setDns(0, dns1);
bind->getCurrentCfg()->setDns(1, dns2);
}
NetworkManager::ControllerBinding::ControllerBinding(Controller *c) :
mController(c) {
}
void NetworkManager::ControllerBinding::setCurrentCfg(InterfaceConfig *c) {
mCurrentCfg = c;
}
void NetworkManager::ControllerBinding::setBoundCfg(InterfaceConfig *c) {
mBoundCfg = c;
}
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