2 * Copyright (C) 2008 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
21 #define LOG_TAG "Vold"
23 #include <cutils/log.h>
25 #include <sysutils/NetlinkEvent.h>
26 #include "NetlinkHandler.h"
27 #include "VolumeManager.h"
29 NetlinkHandler::NetlinkHandler(int listenerSocket) :
30 NetlinkListener(listenerSocket) {
33 NetlinkHandler::~NetlinkHandler() {
36 int NetlinkHandler::start() {
37 return this->startListener();
40 int NetlinkHandler::stop() {
41 return this->stopListener();
44 void NetlinkHandler::onEvent(NetlinkEvent *evt) {
45 VolumeManager *vm = VolumeManager::Instance();
46 const char *subsys = evt->getSubsystem();
47 int action = evt->getAction();
50 LOGW("No subsystem found in netlink event");
54 if (!strcmp(subsys, "block")) {
55 const char *devpath = evt->findParam("DEVPATH");
56 const char *devtype = evt->findParam("DEVTYPE");
57 int major = atoi(evt->findParam("MAJOR"));
58 int minor = atoi(evt->findParam("MINOR"));
60 LOGI("Block event %d, type %s, %d:%d, path '%s'", action, devtype, major, minor, devpath);
62 if (!strcmp(devtype, "disk")) {
63 const char *tmp = evt->findParam("NPARTS");
66 LOGE("Disk uevent missing 'NPARTS' parameter");
69 if (action == NetlinkEvent::NlActionAdd)
70 vm->handleDiskInserted(devpath, major, minor, atoi(tmp));
71 else if (action == NetlinkEvent::NlActionRemove)
72 vm->handleDiskRemoved(major, minor);
74 const char *tmp = evt->findParam("PARTN");
77 LOGE("Partition uevent missing 'PARTN' parameter");
80 if (action == NetlinkEvent::NlActionAdd)
81 vm->handlePartCreated(devpath, major, minor, atoi(tmp));
82 else if (action == NetlinkEvent::NlActionRemove)
83 vm->handlePartRemoved(major, minor);
85 LOGD("Block event handled");
86 } else if (!strcmp(subsys, "battery")) {
87 } else if (!strcmp(subsys, "power_supply")) {
89 LOGE("Dropping %s netlink event", subsys);