iframe-proxy | Sunbelt Computer Software

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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>
#include <string.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/un.h>
#include <linux/netlink.h>
#define LOG_TAG "Vold"
#include <cutils/log.h>
#include "NetlinkManager.h"
#include "NetlinkHandler.h"
NetlinkManager *NetlinkManager::sInstance = NULL;
NetlinkManager *NetlinkManager::Instance() {
    if (!sInstance)
        sInstance = new NetlinkManager();
    return sInstance;
NetlinkManager::NetlinkManager() {
    mBroadcaster = NULL;
NetlinkManager::~NetlinkManager() {
int NetlinkManager::start() {
    struct sockaddr_nl nladdr;
    int sz = 64 * 1024;
    int on = 1;
    memset(&nladdr, 0, sizeof(nladdr));
    nladdr.nl_family = AF_NETLINK;
    nladdr.nl_pid = getpid();
    nladdr.nl_groups = 0xffffffff;
    if ((mSock = socket(PF_NETLINK, SOCK_DGRAM | SOCK_CLOEXEC,
            NETLINK_KOBJECT_UEVENT)) < 0) {
        SLOGE("Unable to create uevent socket: %s", strerror(errno));
        return -1;
    if (setsockopt(mSock, SOL_SOCKET, SO_RCVBUFFORCE, &sz, sizeof(sz)) < 0) {
        SLOGE("Unable to set uevent socket SO_RCVBUFFORCE option: %s", strerror(errno));
        goto out;
    if (setsockopt(mSock, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on)) < 0) {
        SLOGE("Unable to set uevent socket SO_PASSCRED option: %s", strerror(errno));
        goto out;
    if (bind(mSock, (struct sockaddr *) &nladdr, sizeof(nladdr)) < 0) {
        SLOGE("Unable to bind uevent socket: %s", strerror(errno));
        goto out;
    mHandler = new NetlinkHandler(mSock);
    if (mHandler->start()) {
        SLOGE("Unable to start NetlinkHandler: %s", strerror(errno));
        goto out;
    return 0;
    close(mSock);
    return -1;
int NetlinkManager::stop() {
    int status = 0;
    if (mHandler->stop()) {
        SLOGE("Unable to stop NetlinkHandler: %s", strerror(errno));
        status = -1;
    delete mHandler;
    mHandler = NULL;
    close(mSock);
    mSock = -1;
    return status;

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