1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <stdio.h> 18 #include <errno.h> 19 20 #define LOG_TAG "Nexus" 21 22 #include <cutils/log.h> 23 24 #include "NetworkManager.h" 25 #include "InterfaceConfig.h" 26 #include "DhcpClient.h" 27 #include "DhcpState.h" 28 #include "DhcpEvent.h" 29 #include "ResponseCode.h" 30 31 NetworkManager *NetworkManager::sInstance = NULL; 32 33 NetworkManager *NetworkManager::Instance() { 34 if (!sInstance) 35 sInstance = new NetworkManager(new PropertyManager()); 36 return sInstance; 37 } 38 39 NetworkManager::NetworkManager(PropertyManager *propMngr) { 40 mBroadcaster = NULL; 41 mControllerBindings = new ControllerBindingCollection(); 42 mPropMngr = propMngr; 43 mLastDhcpState = DhcpState::INIT; 44 mDhcp = new DhcpClient(this); 45 } 46 47 NetworkManager::~NetworkManager() { 48 } 49 50 int NetworkManager::run() { 51 if (startControllers()) { 52 LOGW("Unable to start all controllers (%s)", strerror(errno)); 53 } 54 return 0; 55 } 56 57 int NetworkManager::attachController(Controller *c) { 58 ControllerBinding *cb = new ControllerBinding(c); 59 mControllerBindings->push_back(cb); 60 return 0; 61 } 62 63 int NetworkManager::startControllers() { 64 int rc = 0; 65 ControllerBindingCollection::iterator it; 66 67 for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) { 68 int irc = (*it)->getController()->start(); 69 if (irc && !rc) 70 rc = irc; 71 } 72 return rc; 73 } 74 75 int NetworkManager::stopControllers() { 76 int rc = 0; 77 ControllerBindingCollection::iterator it; 78 79 for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) { 80 int irc = (*it)->getController()->stop(); 81 if (irc && !rc) 82 rc = irc; 83 } 84 return rc; 85 } 86 87 NetworkManager::ControllerBinding *NetworkManager::lookupBinding(Controller *c) { 88 ControllerBindingCollection::iterator it; 89 90 for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) { 91 if ((*it)->getController() == c) 92 return (*it); 93 } 94 errno = ENOENT; 95 return NULL; 96 } 97 98 Controller *NetworkManager::findController(const char *name) { 99 ControllerBindingCollection::iterator it; 100 101 for (it = mControllerBindings->begin(); it != mControllerBindings->end(); ++it) { 102 if (!strcasecmp((*it)->getController()->getName(), name)) 103 return (*it)->getController(); 104 } 105 errno = ENOENT; 106 return NULL; 107 } 108 109 void NetworkManager::onInterfaceConnected(Controller *c) { 110 LOGD("Controller %s interface %s connected", c->getName(), c->getBoundInterface()); 111 112 if (mDhcp->start(c)) { 113 LOGE("Failed to start DHCP (%s)", strerror(errno)); 114 return; 115 } 116 } 117 118 void NetworkManager::onInterfaceDisconnected(Controller *c) { 119 LOGD("Controller %s interface %s disconnected", c->getName(), 120 c->getBoundInterface()); 121 122 mDhcp->stop(); 123 } 124 125 void NetworkManager::onControllerSuspending(Controller *c) { 126 LOGD("Controller %s interface %s suspending", c->getName(), 127 c->getBoundInterface()); 128 mDhcp->stop(); 129 } 130 131 void NetworkManager::onControllerResumed(Controller *c) { 132 LOGD("Controller %s interface %s resumed", c->getName(), 133 c->getBoundInterface()); 134 } 135 136 void NetworkManager::onDhcpStateChanged(Controller *c, int state) { 137 char tmp[255]; 138 char tmp2[255]; 139 140 LOGD("onDhcpStateChanged(%s -> %s)", 141 DhcpState::toString(mLastDhcpState, tmp, sizeof(tmp)), 142 DhcpState::toString(state, tmp2, sizeof(tmp2))); 143 144 switch(state) { 145 case DhcpState::BOUND: 146 // Refresh the 'net.xxx' for the controller 147 break; 148 case DhcpState::RENEWING: 149 break; 150 default: 151 break; 152 } 153 154 char *tmp3; 155 asprintf(&tmp3, 156 "DHCP state changed from %d (%s) -> %d (%s)", 157 mLastDhcpState, 158 DhcpState::toString(mLastDhcpState, tmp, sizeof(tmp)), 159 state, 160 DhcpState::toString(state, tmp2, sizeof(tmp2))); 161 162 getBroadcaster()->sendBroadcast(ResponseCode::DhcpStateChange, 163 tmp3, 164 false); 165 free(tmp3); 166 167 mLastDhcpState = state; 168 } 169 170 void NetworkManager::onDhcpEvent(Controller *c, int evt) { 171 char tmp[64]; 172 LOGD("onDhcpEvent(%s)", DhcpEvent::toString(evt, tmp, sizeof(tmp))); 173 } 174 175 void NetworkManager::onDhcpLeaseUpdated(Controller *c, struct in_addr *addr, 176 struct in_addr *net, 177 struct in_addr *brd, 178 struct in_addr *gw, 179 struct in_addr *dns1, 180 struct in_addr *dns2) { 181 ControllerBinding *bind = lookupBinding(c); 182 183 if (!bind->getCurrentCfg()) 184 bind->setCurrentCfg(new InterfaceConfig(true)); 185 186 bind->getCurrentCfg()->setIp(addr); 187 bind->getCurrentCfg()->setNetmask(net); 188 bind->getCurrentCfg()->setGateway(gw); 189 bind->getCurrentCfg()->setBroadcast(brd); 190 bind->getCurrentCfg()->setDns(0, dns1); 191 bind->getCurrentCfg()->setDns(1, dns2); 192 } 193 194 NetworkManager::ControllerBinding::ControllerBinding(Controller *c) : 195 mController(c) { 196 } 197 198 void NetworkManager::ControllerBinding::setCurrentCfg(InterfaceConfig *c) { 199 mCurrentCfg = c; 200 } 201 202 void NetworkManager::ControllerBinding::setBoundCfg(InterfaceConfig *c) { 203 mBoundCfg = c; 204 } 205 206
