NetlinkListener.cpp revision 2a56688da92fcf22ea8ce996e2a0e7b453d1543b
1168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat/* 2168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * Copyright (C) 2008 The Android Open Source Project 3168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * 4168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * Licensed under the Apache License, Version 2.0 (the "License"); 5168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * you may not use this file except in compliance with the License. 6168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * You may obtain a copy of the License at 7168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * 8168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * http://www.apache.org/licenses/LICENSE-2.0 9168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * 10168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * Unless required by applicable law or agreed to in writing, software 11168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * distributed under the License is distributed on an "AS IS" BASIS, 12168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * See the License for the specific language governing permissions and 14168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * limitations under the License. 15168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat */ 16168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#include <errno.h> 17168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 18168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#include <sys/types.h> 19168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#include <sys/socket.h> 206bc08280108d020edfceff039f3955eebdc1e45cNick Kralevich#include <linux/netlink.h> 213d40729054803fae1c4d4bb5ac7554665a132b26San Mehat#include <string.h> 22168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 23168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#define LOG_TAG "NetlinkListener" 24168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#include <cutils/log.h> 25531312e491079b7d62612fa35b64e8398f1b3283Nick Kralevich#include <cutils/uevent.h> 26168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 27168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#include <sysutils/NetlinkEvent.h> 28168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 292a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen#if 1 302a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen/* temporary version until we can get Motorola to update their 312a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen * ril.so. Their prebuilt ril.so is using this private class 322a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen * so changing the NetlinkListener() constructor breaks their ril. 332a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen */ 342a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. ChenNetlinkListener::NetlinkListener(int socket) : 352a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen SocketListener(socket, false) { 362a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen mFormat = NETLINK_FORMAT_ASCII; 372a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen} 382a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen#endif 392a56688da92fcf22ea8ce996e2a0e7b453d1543bMike J. Chen 40ec16b9d47cacb0d873ee0ff80c919f49215c0005Mike J. ChenNetlinkListener::NetlinkListener(int socket, int format) : 4117260b14682d4fe59dad3de2de8c9370e6ba9a71Mike J. Chen SocketListener(socket, false), mFormat(format) { 42168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat} 43168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 44fa644ffe944c01a9b00f8d7676d58394fabee285San Mehatbool NetlinkListener::onDataAvailable(SocketClient *cli) 45168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat{ 46fa644ffe944c01a9b00f8d7676d58394fabee285San Mehat int socket = cli->getSocket(); 476bc08280108d020edfceff039f3955eebdc1e45cNick Kralevich ssize_t count; 48168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 4957de8b8f27f887ca8084671df777a4ac199ba647Nick Kralevich count = TEMP_FAILURE_RETRY(uevent_kernel_multicast_recv(socket, mBuffer, sizeof(mBuffer))); 50b59539d395218299f4b4288a26403fedb3d8124cDavid 'Digit' Turner if (count < 0) { 516bc08280108d020edfceff039f3955eebdc1e45cNick Kralevich SLOGE("recvmsg failed (%s)", strerror(errno)); 526bc08280108d020edfceff039f3955eebdc1e45cNick Kralevich return false; 536bc08280108d020edfceff039f3955eebdc1e45cNick Kralevich } 546bc08280108d020edfceff039f3955eebdc1e45cNick Kralevich 55168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat NetlinkEvent *evt = new NetlinkEvent(); 5617260b14682d4fe59dad3de2de8c9370e6ba9a71Mike J. Chen if (!evt->decode(mBuffer, count, mFormat)) { 577e8529a8b528fd30586aa037f15a31b29582c537San Mehat SLOGE("Error decoding NetlinkEvent"); 58ec16b9d47cacb0d873ee0ff80c919f49215c0005Mike J. Chen } else { 59ec16b9d47cacb0d873ee0ff80c919f49215c0005Mike J. Chen onEvent(evt); 60168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat } 61168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 62168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat delete evt; 63168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat return true; 64168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat} 65