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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 <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <string.h>
#define LOG_TAG "NetlinkListener"
#include <cutils/log.h>
#include <cutils/uevent.h>
#include <sysutils/NetlinkEvent.h>
#if 1
/* temporary version until we can get Motorola to update their
* ril.so. Their prebuilt ril.so is using this private class
* so changing the NetlinkListener() constructor breaks their ril.
*/
NetlinkListener::NetlinkListener(int socket) :
SocketListener(socket, false) {
mFormat = NETLINK_FORMAT_ASCII;
}
#endif
NetlinkListener::NetlinkListener(int socket, int format) :
SocketListener(socket, false), mFormat(format) {
}
bool NetlinkListener::onDataAvailable(SocketClient *cli)
{
int socket = cli->getSocket();
ssize_t count;
uid_t uid = -1;
count = TEMP_FAILURE_RETRY(uevent_kernel_multicast_uid_recv(
socket, mBuffer, sizeof(mBuffer), &uid));
if (count < 0) {
if (uid > 0)
LOG_EVENT_INT(65537, uid);
SLOGE("recvmsg failed (%s)", strerror(errno));
return false;
}
NetlinkEvent *evt = new NetlinkEvent();
if (evt->decode(mBuffer, count, mFormat)) {
onEvent(evt);
} else if (mFormat != NETLINK_FORMAT_BINARY) {
// Don't complain if parseBinaryNetlinkMessage returns false. That can
// just mean that the buffer contained no messages we're interested in.
SLOGE("Error decoding NetlinkEvent");
}
delete evt;
return true;
}
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