VolumeManager.cpp revision 23969931fad6e993832208f099f6eea0f6f76eb5
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 4023969931fad6e993832208f099f6eea0f6f76eb5San Mehatextern "C" void KillProcessesWithOpenFiles(const char *, int, int, int); 4123969931fad6e993832208f099f6eea0f6f76eb5San Mehat 42f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager *VolumeManager::sInstance = NULL; 43f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 44f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager *VolumeManager::Instance() { 45f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat if (!sInstance) 46f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat sInstance = new VolumeManager(); 47f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return sInstance; 48f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 49f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 50f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager::VolumeManager() { 51f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mBlockDevices = new BlockDeviceCollection(); 52f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mVolumes = new VolumeCollection(); 53f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mBroadcaster = NULL; 54a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mUsbMassStorageConnected = false; 55f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 56f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 57f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager::~VolumeManager() { 58f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat delete mBlockDevices; 59f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 60f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 61f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::start() { 62f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 63f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 64f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 65f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::stop() { 66f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 67f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 68f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 69f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::addVolume(Volume *v) { 70f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mVolumes->push_back(v); 71f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 72f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 73f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 74a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid VolumeManager::notifyUmsConnected(bool connected) { 75a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char msg[255]; 76a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 77a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (connected) { 78a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mUsbMassStorageConnected = true; 79a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 80a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mUsbMassStorageConnected = false; 81a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 82a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(msg, sizeof(msg), "Share method ums now %s", 83a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat (connected ? "available" : "unavailable")); 84a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 85a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getBroadcaster()->sendBroadcast(ResponseCode::ShareAvailabilityChange, 86a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat msg, false); 87a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 88a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 89a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid VolumeManager::handleSwitchEvent(NetlinkEvent *evt) { 900cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat const char *devpath = evt->findParam("DEVPATH"); 91a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat const char *name = evt->findParam("SWITCH_NAME"); 92a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat const char *state = evt->findParam("SWITCH_STATE"); 93a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 940cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat if (!name || !state) { 950cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat LOGW("Switch %s event missing name/state info", devpath); 960cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat return; 970cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat } 980cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat 99a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(name, "usb_mass_storage")) { 100a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 101a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(state, "online")) { 102a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(true); 103a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 104a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(false); 105a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 106a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 107a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGW("Ignoring unknown switch '%s'", name); 108a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 109a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 110a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 111fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehatvoid VolumeManager::handleBlockEvent(NetlinkEvent *evt) { 112fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat const char *devpath = evt->findParam("DEVPATH"); 113f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 114fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat /* Lookup a volume to handle this device */ 115f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat VolumeCollection::iterator it; 116f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat bool hit = false; 117f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat for (it = mVolumes->begin(); it != mVolumes->end(); ++it) { 118fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat if (!(*it)->handleBlockEvent(evt)) { 119a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef NETLINK_DEBUG 120a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGD("Device '%s' event handled by volume %s\n", devpath, (*it)->getLabel()); 121a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 122f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat hit = true; 123f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat break; 124f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 125f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 126f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 127f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat if (!hit) { 128a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef NETLINK_DEBUG 129fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat LOGW("No volumes handled block event for '%s'", devpath); 130a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 131f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 132f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 133f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 134f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::listVolumes(SocketClient *cli) { 135f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat VolumeCollection::iterator i; 136f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 137f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 138f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat char *buffer; 139f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat asprintf(&buffer, "%s %s %d", 140f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat (*i)->getLabel(), (*i)->getMountpoint(), 141f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat (*i)->getState()); 142a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat cli->sendMsg(ResponseCode::VolumeListResult, buffer, false); 143f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat free(buffer); 144f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 145a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat cli->sendMsg(ResponseCode::CommandOkay, "Volumes listed.", false); 146f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 147f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 14849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 149a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::formatVolume(const char *label) { 150a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 151a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 152a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 153a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 154a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 155a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 156a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 157a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->formatVol(); 158a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 159a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 160a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::getAsecMountPath(const char *id, char *buffer, int maxlen) { 161a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 162a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 163a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 164a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 165a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!isMountpointMounted(mountPoint)) { 166a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = ENOENT; 167a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 168a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 169a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(buffer, maxlen, "/asec/%s", id); 170a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 171a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 172a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 173a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::createAsec(const char *id, int sizeMb, 174a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat const char *fstype, const char *key, int ownerUid) { 175a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 176a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat mkdir("/sdcard/android_secure", 0777); 177a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 178a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (lookupVolume(id)) { 179a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC volume '%s' currently exists", id); 180a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EADDRINUSE; 181a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 182a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 183a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 184a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 185a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 186a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 187a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 188a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!access(asecFileName, F_OK)) { 189a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC file '%s' currently exists - destroy it first! (%s)", 190a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat asecFileName, strerror(errno)); 191a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EADDRINUSE; 192a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 193a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 194a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 195a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::createImageFile(asecFileName, sizeMb)) { 196a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC image file creation failed (%s)", strerror(errno)); 197a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 198a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 199a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 200a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 201a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::getNextAvailable(loopDevice, sizeof(loopDevice))) { 202a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 203a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 204a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 205a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 206a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::create(loopDevice, asecFileName)) { 207a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC loop device creation failed (%s)", strerror(errno)); 208a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 209a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 210a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 211a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 212a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat /* XXX: Start devmapper */ 213a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 214a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Fat::format(loopDevice)) { 215a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC FAT format failed (%s)", strerror(errno)); 216a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 217a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 218a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 219a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 220a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 221a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 222a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 223a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 224a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (mkdir(mountPoint, 0777)) { 225eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat if (errno != EEXIST) { 226eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat LOGE("Mountpoint creation failed (%s)", strerror(errno)); 227eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat Loop::destroyByDevice(loopDevice); 228eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat unlink(asecFileName); 229eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat return -1; 230eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat } 231a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 232a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 233fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat if (Fat::doMount(loopDevice, mountPoint, false, false, ownerUid, 234cff5ec3d360b699ad13df05670efe0d0a7386fbeSan Mehat 0, 0000, false)) { 235cff5ec3d360b699ad13df05670efe0d0a7386fbeSan Mehat// 0, 0007, false)) { 236a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC FAT mount failed (%s)", strerror(errno)); 237a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 238a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 239a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 240a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 241a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 242a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 243a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 244a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 245a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::finalizeAsec(const char *id) { 246a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 247a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 248a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 249a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 250a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 251a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 252a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 253a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::lookupActive(asecFileName, loopDevice, sizeof(loopDevice))) { 254a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Unable to finalize %s (%s)", id, strerror(errno)); 255a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 256a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 257a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 258a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 259fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat // XXX: 260fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat if (Fat::doMount(loopDevice, mountPoint, true, true, 0, 0, 0227, false)) { 261a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC finalize mount failed (%s)", strerror(errno)); 262a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 263a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 264a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 265a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGD("ASEC %s finalized", id); 266a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 267a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 268a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 269a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::destroyAsec(const char *id) { 270a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 271a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 272a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 273a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 274a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 275a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 276a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 277a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (isMountpointMounted(mountPoint)) { 278a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int i, rc; 279a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat for (i = 0; i < 10; i++) { 280a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat rc = umount(mountPoint); 281a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!rc) { 282a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat break; 283a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 284a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc && (errno == EINVAL || errno == ENOENT)) { 285a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat rc = 0; 286a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat break; 287a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 288a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGW("ASEC %s unmount attempt %d failed (%s)", 289a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat id, i +1, strerror(errno)); 29023969931fad6e993832208f099f6eea0f6f76eb5San Mehat 29123969931fad6e993832208f099f6eea0f6f76eb5San Mehat if (i >= 5) { 29223969931fad6e993832208f099f6eea0f6f76eb5San Mehat KillProcessesWithOpenFiles(mountPoint, (i < 7 ? 0 : 1), 29323969931fad6e993832208f099f6eea0f6f76eb5San Mehat NULL, 0); 29423969931fad6e993832208f099f6eea0f6f76eb5San Mehat } 295a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat usleep(1000 * 250); 296a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 297a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc) { 298a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Failed to unmount ASEC %s for destroy", id); 299a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 300a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 301a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 302a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 303a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 304a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!Loop::lookupActive(asecFileName, loopDevice, sizeof(loopDevice))) { 305a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 306a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 307a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 308a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 309a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 310a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGD("ASEC %s destroyed", id); 311a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 312a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 313a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 314a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::mountAsec(const char *id, const char *key, int ownerUid) { 315a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 316a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 317a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 318a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 319a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 320a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 321a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 322a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (isMountpointMounted(mountPoint)) { 323a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC %s already mounted", id); 324a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EBUSY; 325a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 326a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 327a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 328a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 329a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::lookupActive(asecFileName, loopDevice, sizeof(loopDevice))) { 330a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::getNextAvailable(loopDevice, sizeof(loopDevice))) { 331a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Unable to find loop device for ASEC mount"); 332a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 333a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 334a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 335a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::create(loopDevice, asecFileName)) { 336a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC loop device creation failed (%s)", strerror(errno)); 337a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 338a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 339a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 340a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 341a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (mkdir(mountPoint, 0777)) { 342a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Mountpoint creation failed (%s)", strerror(errno)); 343a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 344a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 345a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 346fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat if (Fat::doMount(loopDevice, mountPoint, true, false, ownerUid, 0, 347cff5ec3d360b699ad13df05670efe0d0a7386fbeSan Mehat 0222, false)) { 348cff5ec3d360b699ad13df05670efe0d0a7386fbeSan Mehat// 0227, false)) { 349a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC mount failed (%s)", strerror(errno)); 350a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 351a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 352a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 353a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGD("ASEC %s mounted", id); 354a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 355a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 356a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 35749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehatint VolumeManager::mountVolume(const char *label) { 35849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat Volume *v = lookupVolume(label); 35949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 36049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (!v) { 36149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = ENOENT; 36249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 36349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 36449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 365a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->mountVol(); 366a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 367a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 368a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::shareAvailable(const char *method, bool *avail) { 369a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 370a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 371a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 372a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 373a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 374a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 375a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (mUsbMassStorageConnected) 376a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat *avail = true; 377a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else 378a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat *avail = false; 379a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 380a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 381a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 382a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::simulate(const char *cmd, const char *arg) { 383a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 384a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(cmd, "ums")) { 385a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(arg, "connect")) { 386a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(true); 387a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else if (!strcmp(arg, "disconnect")) { 388a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(false); 389a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 390a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 391a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 392a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 393a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 394a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 395a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 396a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 397a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 398a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 399a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 400a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::shareVolume(const char *label, const char *method) { 401a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 402a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 403a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 404a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 405a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 406a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 407a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 408a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat /* 409a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Eventually, we'll want to support additional share back-ends, 410a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * some of which may work while the media is mounted. For now, 411a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * we just support UMS 412a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 413a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 414a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 415a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 416a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 417a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 418a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() == Volume::State_NoMedia) { 419a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 420a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 421a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 422a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 42349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (v->getState() != Volume::State_Idle) { 424a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // You need to unmount manually befoe sharing 42549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = EBUSY; 42649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 42749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 42849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 429a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat dev_t d = v->getDiskDevice(); 430a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if ((MAJOR(d) == 0) && (MINOR(d) == 0)) { 431a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // This volume does not support raw disk access 432a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 433a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 434a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 435a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 436a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int fd; 437a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char nodepath[255]; 438a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(nodepath, 439a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sizeof(nodepath), "/dev/block/vold/%d:%d", 440a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat MAJOR(d), MINOR(d)); 441a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 4420cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat if ((fd = open("/sys/devices/platform/usb_mass_storage/lun0/file", 4430cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat O_WRONLY)) < 0) { 444a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to open ums lunfile (%s)", strerror(errno)); 445a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 446a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 447a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 448a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (write(fd, nodepath, strlen(nodepath)) < 0) { 449a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to write to ums lunfile (%s)", strerror(errno)); 450a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 451a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 452a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 453a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 454a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 455a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->handleVolumeShared(); 456a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 457a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 458a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 459a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::unshareVolume(const char *label, const char *method) { 460a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 461a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 462a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 463a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 464a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 465a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 466a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 467a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 468a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 469a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 470a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 471a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 472a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() != Volume::State_Shared) { 473a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 474a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 475a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 476a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 477a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat dev_t d = v->getDiskDevice(); 478a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 479a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int fd; 480a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char nodepath[255]; 481a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(nodepath, 482a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sizeof(nodepath), "/dev/block/vold/%d:%d", 483a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat MAJOR(d), MINOR(d)); 484a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 4850cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat if ((fd = open("/sys/devices/platform/usb_mass_storage/lun0/file", O_WRONLY)) < 0) { 486a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to open ums lunfile (%s)", strerror(errno)); 487a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 488a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 489a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 490a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char ch = 0; 491a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (write(fd, &ch, 1) < 0) { 492a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to write to ums lunfile (%s)", strerror(errno)); 493a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 494a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 495a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 496a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 497a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 498a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->handleVolumeUnshared(); 499a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 50049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 50149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 50249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehatint VolumeManager::unmountVolume(const char *label) { 50349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat Volume *v = lookupVolume(label); 50449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 50549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (!v) { 50649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = ENOENT; 50749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 50849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 50949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 510a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() == Volume::State_NoMedia) { 511a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 512a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 513a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 514a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 51549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (v->getState() != Volume::State_Mounted) { 516a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGW("Attempt to unmount volume which isn't mounted (%d)\n", 517a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->getState()); 51849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = EBUSY; 51949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 52049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 52149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 522a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->unmountVol(); 52349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 52449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 525a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat/* 526a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Looks up a volume by it's label or mount-point 527a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 52849e2bce5b74129c26a35e25d4693cbfe98c4688eSan MehatVolume *VolumeManager::lookupVolume(const char *label) { 52949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat VolumeCollection::iterator i; 53049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 53149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 532a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (label[0] == '/') { 533a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(label, (*i)->getMountpoint())) 534a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return (*i); 535a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 536a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(label, (*i)->getLabel())) 537a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return (*i); 538a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 53949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 54049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return NULL; 54149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 542a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 543a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatbool VolumeManager::isMountpointMounted(const char *mp) 544a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat{ 545a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char device[256]; 546a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mount_path[256]; 547a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char rest[256]; 548a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat FILE *fp; 549a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char line[1024]; 550a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 551a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!(fp = fopen("/proc/mounts", "r"))) { 552a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Error opening /proc/mounts (%s)", strerror(errno)); 553a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return false; 554a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 555a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 556a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat while(fgets(line, sizeof(line), fp)) { 557a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat line[strlen(line)-1] = '\0'; 558a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat sscanf(line, "%255s %255s %255s\n", device, mount_path, rest); 559a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!strcmp(mount_path, mp)) { 560a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat fclose(fp); 561a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return true; 562a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 563a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 564a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 565a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 566a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat fclose(fp); 567a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return false; 568a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 569a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 570