VolumeManager.cpp revision fff0b47998a722d57eea6a07350bbd7a6032b3cc
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)) { 223a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Mountpoint creation failed (%s)", strerror(errno)); 224a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 225a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 226a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 227a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 228a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 229fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat if (Fat::doMount(loopDevice, mountPoint, false, false, ownerUid, 230fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat 0, 0007, false)) { 231a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC FAT mount failed (%s)", strerror(errno)); 232a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 233a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 234a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 235a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 236a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 237a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 238a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 239a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 240a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::finalizeAsec(const char *id) { 241a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 242a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 243a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 244a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 245a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 246a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 247a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 248a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::lookupActive(asecFileName, loopDevice, sizeof(loopDevice))) { 249a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Unable to finalize %s (%s)", id, strerror(errno)); 250a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 251a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 252a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 253a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 254fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat // XXX: 255fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat if (Fat::doMount(loopDevice, mountPoint, true, true, 0, 0, 0227, false)) { 256a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC finalize mount failed (%s)", strerror(errno)); 257a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 258a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 259a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 260a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGD("ASEC %s finalized", id); 261a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 262a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 263a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 264a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::destroyAsec(const char *id) { 265a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 266a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 267a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 268a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 269a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 270a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 271a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 272a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (isMountpointMounted(mountPoint)) { 273a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat int i, rc; 274a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat for (i = 0; i < 10; i++) { 275a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat rc = umount(mountPoint); 276a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!rc) { 277a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat break; 278a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 279a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc && (errno == EINVAL || errno == ENOENT)) { 280a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat rc = 0; 281a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat break; 282a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 283a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGW("ASEC %s unmount attempt %d failed (%s)", 284a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat id, i +1, strerror(errno)); 285a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat usleep(1000 * 250); 286a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 287a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (rc) { 288a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Failed to unmount ASEC %s for destroy", id); 289a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 290a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 291a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 292a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 293a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 294a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!Loop::lookupActive(asecFileName, loopDevice, sizeof(loopDevice))) { 295a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 296a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 297a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 298a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 299a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 300a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGD("ASEC %s destroyed", id); 301a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 302a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 303a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 304a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::mountAsec(const char *id, const char *key, int ownerUid) { 305a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 306a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 307a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 308a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(asecFileName, sizeof(asecFileName), 309a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat "/sdcard/android_secure/%s.asec", id); 310a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat snprintf(mountPoint, sizeof(mountPoint), "/asec/%s", id); 311a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 312a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (isMountpointMounted(mountPoint)) { 313a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC %s already mounted", id); 314a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EBUSY; 315a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 316a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 317a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 318a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 319a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::lookupActive(asecFileName, loopDevice, sizeof(loopDevice))) { 320a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::getNextAvailable(loopDevice, sizeof(loopDevice))) { 321a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Unable to find loop device for ASEC mount"); 322a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 323a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 324a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 325a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (Loop::create(loopDevice, asecFileName)) { 326a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC loop device creation failed (%s)", strerror(errno)); 327a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 328a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 329a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 330a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 331a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (mkdir(mountPoint, 0777)) { 332a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Mountpoint creation failed (%s)", strerror(errno)); 333a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 334a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 335a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 336fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat if (Fat::doMount(loopDevice, mountPoint, true, false, ownerUid, 0, 337fff0b47998a722d57eea6a07350bbd7a6032b3ccSan Mehat 0227, false)) { 338a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("ASEC mount failed (%s)", strerror(errno)); 339a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 340a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 341a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 342a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGD("ASEC %s mounted", id); 343a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 344a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 345a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 34649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehatint VolumeManager::mountVolume(const char *label) { 34749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat Volume *v = lookupVolume(label); 34849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 34949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (!v) { 35049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = ENOENT; 35149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 35249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 35349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 354a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->mountVol(); 355a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 356a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 357a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::shareAvailable(const char *method, bool *avail) { 358a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 359a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 360a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 361a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 362a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 363a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 364a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (mUsbMassStorageConnected) 365a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat *avail = true; 366a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else 367a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat *avail = false; 368a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 369a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 370a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 371a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::simulate(const char *cmd, const char *arg) { 372a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 373a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(cmd, "ums")) { 374a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(arg, "connect")) { 375a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(true); 376a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else if (!strcmp(arg, "disconnect")) { 377a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat notifyUmsConnected(false); 378a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 379a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 380a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 381a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 382a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 383a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 384a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 385a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 386a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 387a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 388a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 389a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::shareVolume(const char *label, const char *method) { 390a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 391a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 392a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 393a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 394a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 395a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 396a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 397a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat /* 398a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Eventually, we'll want to support additional share back-ends, 399a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * some of which may work while the media is mounted. For now, 400a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * we just support UMS 401a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 402a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 403a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 404a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 405a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 406a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 407a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() == Volume::State_NoMedia) { 408a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 409a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 410a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 411a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 41249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (v->getState() != Volume::State_Idle) { 413a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // You need to unmount manually befoe sharing 41449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = EBUSY; 41549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 41649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 41749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 418a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat dev_t d = v->getDiskDevice(); 419a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if ((MAJOR(d) == 0) && (MINOR(d) == 0)) { 420a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // This volume does not support raw disk access 421a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 422a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 423a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 424a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 425a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int fd; 426a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char nodepath[255]; 427a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(nodepath, 428a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sizeof(nodepath), "/dev/block/vold/%d:%d", 429a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat MAJOR(d), MINOR(d)); 430a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 4310cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat if ((fd = open("/sys/devices/platform/usb_mass_storage/lun0/file", 4320cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat O_WRONLY)) < 0) { 433a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to open ums lunfile (%s)", strerror(errno)); 434a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 435a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 436a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 437a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (write(fd, nodepath, strlen(nodepath)) < 0) { 438a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to write to ums lunfile (%s)", strerror(errno)); 439a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 440a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 441a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 442a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 443a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 444a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->handleVolumeShared(); 445a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 446a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 447a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 448a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::unshareVolume(const char *label, const char *method) { 449a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 450a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 451a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 452a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 453a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 454a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 455a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 456a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 457a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 458a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 459a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 460a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 461a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() != Volume::State_Shared) { 462a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 463a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 464a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 465a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 466a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat dev_t d = v->getDiskDevice(); 467a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 468a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int fd; 469a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char nodepath[255]; 470a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(nodepath, 471a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sizeof(nodepath), "/dev/block/vold/%d:%d", 472a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat MAJOR(d), MINOR(d)); 473a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 4740cde53ce7b44ce189d0bc6fa81c0036e096deb51San Mehat if ((fd = open("/sys/devices/platform/usb_mass_storage/lun0/file", O_WRONLY)) < 0) { 475a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to open ums lunfile (%s)", strerror(errno)); 476a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 477a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 478a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 479a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char ch = 0; 480a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (write(fd, &ch, 1) < 0) { 481a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGE("Unable to write to ums lunfile (%s)", strerror(errno)); 482a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 483a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 484a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 485a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 486a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 487a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->handleVolumeUnshared(); 488a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 48949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 49049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 49149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehatint VolumeManager::unmountVolume(const char *label) { 49249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat Volume *v = lookupVolume(label); 49349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 49449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (!v) { 49549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = ENOENT; 49649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 49749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 49849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 499a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() == Volume::State_NoMedia) { 500a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 501a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 502a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 503a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 50449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (v->getState() != Volume::State_Mounted) { 505a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat LOGW("Attempt to unmount volume which isn't mounted (%d)\n", 506a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->getState()); 50749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = EBUSY; 50849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 50949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 51049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 511a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->unmountVol(); 51249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 51349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 514a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat/* 515a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Looks up a volume by it's label or mount-point 516a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 51749e2bce5b74129c26a35e25d4693cbfe98c4688eSan MehatVolume *VolumeManager::lookupVolume(const char *label) { 51849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat VolumeCollection::iterator i; 51949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 52049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 521a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (label[0] == '/') { 522a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(label, (*i)->getMountpoint())) 523a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return (*i); 524a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 525a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(label, (*i)->getLabel())) 526a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return (*i); 527a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 52849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 52949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return NULL; 53049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 531a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 532a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatbool VolumeManager::isMountpointMounted(const char *mp) 533a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat{ 534a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char device[256]; 535a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mount_path[256]; 536a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char rest[256]; 537a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat FILE *fp; 538a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char line[1024]; 539a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 540a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!(fp = fopen("/proc/mounts", "r"))) { 541a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat LOGE("Error opening /proc/mounts (%s)", strerror(errno)); 542a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return false; 543a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 544a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 545a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat while(fgets(line, sizeof(line), fp)) { 546a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat line[strlen(line)-1] = '\0'; 547a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat sscanf(line, "%255s %255s %255s\n", device, mount_path, rest); 548a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!strcmp(mount_path, mp)) { 549a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat fclose(fp); 550a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return true; 551a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 552a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 553a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 554a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 555a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat fclose(fp); 556a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return false; 557a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 558a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 559