VolumeManager.cpp revision eb13a90bb96b329d8e24a6c3d4720ae88451d301
1f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat/* 2f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * Copyright (C) 2008 The Android Open Source Project 3f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * 4f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * Licensed under the Apache License, Version 2.0 (the "License"); 5f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * you may not use this file except in compliance with the License. 6f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * You may obtain a copy of the License at 7f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * 8f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * http://www.apache.org/licenses/LICENSE-2.0 9f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * 10f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * Unless required by applicable law or agreed to in writing, software 11f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * distributed under the License is distributed on an "AS IS" BASIS, 12f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * See the License for the specific language governing permissions and 14f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat * limitations under the License. 15f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat */ 16f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 17f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <stdio.h> 18fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat#include <stdlib.h> 19fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat#include <string.h> 20f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <errno.h> 21a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include <fcntl.h> 22a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <sys/stat.h> 23a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <sys/types.h> 24a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <sys/mount.h> 25a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 26a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include <linux/kdev_t.h> 27f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 28f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#define LOG_TAG "Vold" 29f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 30f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <cutils/log.h> 31f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 32fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat#include <sysutils/NetlinkEvent.h> 33fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 34f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include "VolumeManager.h" 35ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehat#include "DirectVolume.h" 36a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include "ResponseCode.h" 37a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include "Loop.h" 38a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include "Fat.h" 39f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 40f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager *VolumeManager::sInstance = NULL; 41f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 42f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager *VolumeManager::Instance() { 43f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat if (!sInstance) 44f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat sInstance = new VolumeManager(); 45f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return sInstance; 46f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 47f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 48f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager::VolumeManager() { 49f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mBlockDevices = new BlockDeviceCollection(); 50f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mVolumes = new VolumeCollection(); 51f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mBroadcaster = NULL; 52a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mUsbMassStorageConnected = false; 53f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 54f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 55f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager::~VolumeManager() { 56f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat delete mBlockDevices; 57f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 58f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 59f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::start() { 60f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 61f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 62f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 63f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::stop() { 64f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 65f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 66f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 67f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::addVolume(Volume *v) { 68f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mVolumes->push_back(v); 69f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 70f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 71f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 72a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid VolumeManager::notifyUmsConnected(bool connected) { 73a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char msg[255]; 74a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 75a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (connected) { 76a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mUsbMassStorageConnected = true; 77a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 78a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mUsbMassStorageConnected = false; 79a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 80a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(msg, sizeof(msg), "Share method ums now %s", 81a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat (connected ? "available" : "unavailable")); 82a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 83a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getBroadcaster()->sendBroadcast(ResponseCode::ShareAvailabilityChange, 84a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat msg, false); 85a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 86a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 87a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid VolumeManager::handleSwitchEvent(NetlinkEvent *evt) { 880cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat const char *devpath = evt->findParam("DEVPATH"); 89a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat const char *name = evt->findParam("SWITCH_NAME"); 90a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat const char *state = evt->findParam("SWITCH_STATE"); 91a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 920cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat if (!name || !state) { 930cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat LOGW("Switch %s event missing name/state info", devpath); 940cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat return; 950cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat } 960cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat 97a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(name, "usb_mass_storage")) { 98a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 99a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(state, "online")) { 100a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(true); 101a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 102a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(false); 103a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 104a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 105a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGW("Ignoring unknown switch '%s'", name); 106a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 107a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 108a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 109fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehatvoid VolumeManager::handleBlockEvent(NetlinkEvent *evt) { 110fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat const char *devpath = evt->findParam("DEVPATH"); 111f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 112fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat /* Lookup a volume to handle this device */ 113f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat VolumeCollection::iterator it; 114f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat bool hit = false; 115f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat for (it = mVolumes->begin(); it != mVolumes->end(); ++it) { 116fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat if (!(*it)->handleBlockEvent(evt)) { 117a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef NETLINK_DEBUG 118a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGD("Device '%s' event handled by volume %s\n", devpath, (*it)->getLabel()); 119a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 120f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat hit = true; 121f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat break; 122f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 123f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 124f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 125f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat if (!hit) { 126a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef NETLINK_DEBUG 127fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat LOGW("No volumes handled block event for '%s'", devpath); 128a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 129f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 130f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 131f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 132f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::listVolumes(SocketClient *cli) { 133f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat VolumeCollection::iterator i; 134f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 135f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 136f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat char *buffer; 137f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat asprintf(&buffer, "%s %s %d", 138f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat (*i)->getLabel(), (*i)->getMountpoint(), 139f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat (*i)->getState()); 140a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat cli->sendMsg(ResponseCode::VolumeListResult, buffer, false); 141f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat free(buffer); 142f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 143a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat cli->sendMsg(ResponseCode::CommandOkay, "Volumes listed.", false); 144f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 145f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 14649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 147a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::formatVolume(const char *label) { 148a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 149a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 150a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 151a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 152a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 153a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 154a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 155a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->formatVol(); 156a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 157a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 158a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::getAsecMountPath(const char *id, char *buffer, int maxlen) { 159a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 160a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 161a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 162a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 163a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!isMountpointMounted(mountPoint)) { 164a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = ENOENT; 165a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 166a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 167a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(buffer, maxlen, "/asec/%s", id); 168a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 169a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 170a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 171a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::createAsec(const char *id, int sizeMb, 172a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat const char *fstype, const char *key, int ownerUid) { 173a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 174a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat mkdir("/sdcard/android_secure", 0777); 175a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 176a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (lookupVolume(id)) { 177a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC volume '%s' currently exists", id); 178a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EADDRINUSE; 179a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 180a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 181a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 182a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 183a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 184a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 185a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 186a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!access(asecFileName, F_OK)) { 187a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC file '%s' currently exists - destroy it first! (%s)", 188a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat asecFileName, strerror(errno)); 189a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EADDRINUSE; 190a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 191a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 192a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 193a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::createImageFile(asecFileName, sizeMb)) { 194a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC image file creation failed (%s)", strerror(errno)); 195a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 196a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 197a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 198a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 199a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::getNextAvailable(loopDevice, sizeof(loopDevice))) { 200a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 201a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 202a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 203a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 204a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::create(loopDevice, asecFileName)) { 205a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC loop device creation failed (%s)", strerror(errno)); 206a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 207a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 208a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 209a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 210a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat /* XXX: Start devmapper */ 211a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 212a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Fat::format(loopDevice)) { 213a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC FAT format failed (%s)", strerror(errno)); 214a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 215a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 216a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 217a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 218a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 219a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 220a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 221a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 222a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (mkdir(mountPoint, 0777)) { 223eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat if (errno != EEXIST) { 224eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat LOGE("Mountpoint creation failed (%s)", strerror(errno)); 225eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat Loop::destroyByDevice(loopDevice); 226eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat unlink(asecFileName); 227eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat return -1; 228eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat } 229a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 230a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 231fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat if (Fat::doMount(loopDevice, mountPoint, false, false, ownerUid, 232fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat 0, 0007, false)) { 233a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC FAT mount failed (%s)", strerror(errno)); 234a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 235a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 236a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 237a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 238a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 239a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 240a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 241a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 242a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::finalizeAsec(const char *id) { 243a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 244a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 245a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 246a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 247a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 248a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 249a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 250a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::lookupActive(asecFileName, loopDevice, sizeof(loopDevice))) { 251a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Unable to finalize %s (%s)", id, strerror(errno)); 252a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 253a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 254a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 255a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 256fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat // XXX: 257fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat if (Fat::doMount(loopDevice, mountPoint, true, true, 0, 0, 0227, false)) { 258a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC finalize mount failed (%s)", strerror(errno)); 259a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 260a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 261a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 262a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGD("ASEC %s finalized", id); 263a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 264a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 265a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 266a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::destroyAsec(const char *id) { 267a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 268a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 269a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 270a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 271a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 272a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 273a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 274a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (isMountpointMounted(mountPoint)) { 275a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int i, rc; 276a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat for (i = 0; i < 10; i++) { 277a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat rc = umount(mountPoint); 278a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!rc) { 279a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat break; 280a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 281a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc && (errno == EINVAL || errno == ENOENT)) { 282a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat rc = 0; 283a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat break; 284a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 285a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGW("ASEC %s unmount attempt %d failed (%s)", 286a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat id, i +1, strerror(errno)); 287a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat usleep(1000 * 250); 288a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 289a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc) { 290a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Failed to unmount ASEC %s for destroy", id); 291a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 292a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 293a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 294a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 295a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 296a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!Loop::lookupActive(asecFileName, loopDevice, sizeof(loopDevice))) { 297a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 298a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 299a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 300a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 301a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 302a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGD("ASEC %s destroyed", id); 303a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 304a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 305a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 306a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::mountAsec(const char *id, const char *key, int ownerUid) { 307a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 308a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 309a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 310a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 311a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 312a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 313a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 314a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (isMountpointMounted(mountPoint)) { 315a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC %s already mounted", id); 316a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EBUSY; 317a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 318a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 319a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 320a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 321a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::lookupActive(asecFileName, loopDevice, sizeof(loopDevice))) { 322a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::getNextAvailable(loopDevice, sizeof(loopDevice))) { 323a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Unable to find loop device for ASEC mount"); 324a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 325a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 326a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 327a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::create(loopDevice, asecFileName)) { 328a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC loop device creation failed (%s)", strerror(errno)); 329a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 330a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 331a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 332a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 333a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (mkdir(mountPoint, 0777)) { 334a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Mountpoint creation failed (%s)", strerror(errno)); 335a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 336a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 337a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 338fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat if (Fat::doMount(loopDevice, mountPoint, true, false, ownerUid, 0, 339fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat 0227, false)) { 340a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC mount failed (%s)", strerror(errno)); 341a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 342a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 343a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 344a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGD("ASEC %s mounted", id); 345a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 346a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 347a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 34849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehatint VolumeManager::mountVolume(const char *label) { 34949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat Volume *v = lookupVolume(label); 35049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 35149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (!v) { 35249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = ENOENT; 35349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 35449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 35549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 356a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->mountVol(); 357a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 358a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 359a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::shareAvailable(const char *method, bool *avail) { 360a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 361a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 362a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 363a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 364a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 365a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 366a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (mUsbMassStorageConnected) 367a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat *avail = true; 368a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else 369a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat *avail = false; 370a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 371a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 372a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 373a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::simulate(const char *cmd, const char *arg) { 374a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 375a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(cmd, "ums")) { 376a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(arg, "connect")) { 377a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(true); 378a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else if (!strcmp(arg, "disconnect")) { 379a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(false); 380a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 381a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 382a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 383a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 384a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 385a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 386a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 387a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 388a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 389a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 390a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 391a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::shareVolume(const char *label, const char *method) { 392a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 393a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 394a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 395a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 396a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 397a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 398a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 399a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat /* 400a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Eventually, we'll want to support additional share back-ends, 401a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * some of which may work while the media is mounted. For now, 402a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * we just support UMS 403a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 404a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 405a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 406a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 407a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 408a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 409a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() == Volume::State_NoMedia) { 410a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 411a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 412a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 413a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 41449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (v->getState() != Volume::State_Idle) { 415a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // You need to unmount manually befoe sharing 41649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = EBUSY; 41749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 41849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 41949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 420a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat dev_t d = v->getDiskDevice(); 421a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if ((MAJOR(d) == 0) && (MINOR(d) == 0)) { 422a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // This volume does not support raw disk access 423a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 424a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 425a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 426a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 427a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int fd; 428a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char nodepath[255]; 429a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(nodepath, 430a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sizeof(nodepath), "/dev/block/vold/%d:%d", 431a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat MAJOR(d), MINOR(d)); 432a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 4330cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat if ((fd = open("/sys/devices/platform/usb_mass_storage/lun0/file", 4340cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat O_WRONLY)) < 0) { 435a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to open ums lunfile (%s)", strerror(errno)); 436a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 437a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 438a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 439a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (write(fd, nodepath, strlen(nodepath)) < 0) { 440a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to write to ums lunfile (%s)", strerror(errno)); 441a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 442a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 443a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 444a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 445a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 446a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->handleVolumeShared(); 447a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 448a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 449a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 450a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::unshareVolume(const char *label, const char *method) { 451a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 452a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 453a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 454a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 455a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 456a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 457a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 458a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 459a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 460a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 461a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 462a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 463a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() != Volume::State_Shared) { 464a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 465a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 466a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 467a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 468a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat dev_t d = v->getDiskDevice(); 469a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 470a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int fd; 471a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char nodepath[255]; 472a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(nodepath, 473a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sizeof(nodepath), "/dev/block/vold/%d:%d", 474a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat MAJOR(d), MINOR(d)); 475a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 4760cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat if ((fd = open("/sys/devices/platform/usb_mass_storage/lun0/file", O_WRONLY)) < 0) { 477a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to open ums lunfile (%s)", strerror(errno)); 478a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 479a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 480a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 481a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char ch = 0; 482a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (write(fd, &ch, 1) < 0) { 483a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to write to ums lunfile (%s)", strerror(errno)); 484a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 485a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 486a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 487a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 488a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 489a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->handleVolumeUnshared(); 490a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 49149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 49249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 49349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehatint VolumeManager::unmountVolume(const char *label) { 49449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat Volume *v = lookupVolume(label); 49549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 49649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (!v) { 49749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = ENOENT; 49849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 49949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 50049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 501a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() == Volume::State_NoMedia) { 502a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 503a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 504a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 505a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 50649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (v->getState() != Volume::State_Mounted) { 507a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGW("Attempt to unmount volume which isn't mounted (%d)\n", 508a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->getState()); 50949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = EBUSY; 51049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 51149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 51249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 513a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->unmountVol(); 51449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 51549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 516a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat/* 517a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Looks up a volume by it's label or mount-point 518a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 51949e2bce5b74129c26a35e25d4693cbfe98c4688eSan MehatVolume *VolumeManager::lookupVolume(const char *label) { 52049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat VolumeCollection::iterator i; 52149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 52249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 523a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (label[0] == '/') { 524a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(label, (*i)->getMountpoint())) 525a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return (*i); 526a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 527a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(label, (*i)->getLabel())) 528a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return (*i); 529a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 53049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 53149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return NULL; 53249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 533a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 534a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatbool VolumeManager::isMountpointMounted(const char *mp) 535a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat{ 536a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char device[256]; 537a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mount_path[256]; 538a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char rest[256]; 539a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat FILE *fp; 540a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char line[1024]; 541a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 542a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!(fp = fopen("/proc/mounts", "r"))) { 543a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Error opening /proc/mounts (%s)", strerror(errno)); 544a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return false; 545a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 546a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 547a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat while(fgets(line, sizeof(line), fp)) { 548a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat line[strlen(line)-1] = '\0'; 549a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat sscanf(line, "%255s %255s %255s\n", device, mount_path, rest); 550a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!strcmp(mount_path, mp)) { 551a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat fclose(fp); 552a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return true; 553a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 554a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 555a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 556a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 557a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat fclose(fp); 558a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return false; 559a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 560a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 561