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> 22344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root#include <fts.h> 23344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root#include <unistd.h> 24a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <sys/stat.h> 25a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <sys/types.h> 26a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include <sys/mount.h> 27425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall#include <dirent.h> 28a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 29a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include <linux/kdev_t.h> 30f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 31f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#define LOG_TAG "Vold" 32f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 337b18a7b36f61574c0f0bdde0a7409dc36676fa12Kenny Root#include <openssl/md5.h> 347b18a7b36f61574c0f0bdde0a7409dc36676fa12Kenny Root 35f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <cutils/log.h> 36f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 37fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat#include <sysutils/NetlinkEvent.h> 38fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat 39344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root#include <private/android_filesystem_config.h> 40344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 41f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include "VolumeManager.h" 42ae10b91044bf76b40b77d81c169e48e0bbdf6d75San Mehat#include "DirectVolume.h" 43a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include "ResponseCode.h" 44a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include "Loop.h" 45344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root#include "Ext4.h" 46a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat#include "Fat.h" 47b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat#include "Devmapper.h" 48586536c60b773e3517531ad8a6cb0de6722c67fcSan Mehat#include "Process.h" 49fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat#include "Asec.h" 5029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall#include "cryptfs.h" 5123969931fad6e993832208f099f6eea0f6f76eb5San Mehat 5297f2fc110b2ace7914671c2f5852379bd78922e4Mike Lockwood#define MASS_STORAGE_FILE_PATH "/sys/class/android_usb/android0/f_mass_storage/lun/file" 5397f2fc110b2ace7914671c2f5852379bd78922e4Mike Lockwood 54f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager *VolumeManager::sInstance = NULL; 55f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 56f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager *VolumeManager::Instance() { 57f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat if (!sInstance) 58f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat sInstance = new VolumeManager(); 59f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return sInstance; 60f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 61f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 62f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager::VolumeManager() { 63d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat mDebug = false; 64f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mVolumes = new VolumeCollection(); 6588705166ab82057090a070c6d4200c3d9db76f11San Mehat mActiveContainers = new AsecIdCollection(); 66f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mBroadcaster = NULL; 67a28056b38275003895ff5d9576681aca01544822Mike Lockwood mUmsSharingCount = 0; 68a28056b38275003895ff5d9576681aca01544822Mike Lockwood mSavedDirtyRatio = -1; 69a28056b38275003895ff5d9576681aca01544822Mike Lockwood // set dirty ratio to 0 when UMS is active 70a28056b38275003895ff5d9576681aca01544822Mike Lockwood mUmsDirtyRatio = 0; 713b17005083be230509480ea65ae67c237142fadaKen Sumrall mVolManagerDisabled = 0; 72f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 73f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 74f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolumeManager::~VolumeManager() { 7588705166ab82057090a070c6d4200c3d9db76f11San Mehat delete mVolumes; 7688705166ab82057090a070c6d4200c3d9db76f11San Mehat delete mActiveContainers; 77f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 78f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 79d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehatchar *VolumeManager::asecHash(const char *id, char *buffer, size_t len) { 80acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root static const char* digits = "0123456789abcdef"; 81acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root 827b18a7b36f61574c0f0bdde0a7409dc36676fa12Kenny Root unsigned char sig[MD5_DIGEST_LENGTH]; 83d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 84acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root if (buffer == NULL) { 85acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root SLOGE("Destination buffer is NULL"); 86acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root errno = ESPIPE; 87acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root return NULL; 88acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root } else if (id == NULL) { 89acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root SLOGE("Source buffer is NULL"); 90acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root errno = ESPIPE; 91acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root return NULL; 92acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root } else if (len < MD5_ASCII_LENGTH_PLUS_NULL) { 93acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root SLOGE("Target hash buffer size < %d bytes (%d)", 94acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root MD5_ASCII_LENGTH_PLUS_NULL, len); 95d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat errno = ESPIPE; 96d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat return NULL; 97d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 987b18a7b36f61574c0f0bdde0a7409dc36676fa12Kenny Root 997b18a7b36f61574c0f0bdde0a7409dc36676fa12Kenny Root MD5(reinterpret_cast<const unsigned char*>(id), strlen(id), sig); 100d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 101acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root char *p = buffer; 1027b18a7b36f61574c0f0bdde0a7409dc36676fa12Kenny Root for (int i = 0; i < MD5_DIGEST_LENGTH; i++) { 103acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root *p++ = digits[sig[i] >> 4]; 104acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root *p++ = digits[sig[i] & 0x0F]; 105d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 106acc9e7dcca8978fc809fa5b4d9b819c515a980ffKenny Root *p = '\0'; 107d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 108d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat return buffer; 109d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat} 110d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 111d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehatvoid VolumeManager::setDebug(bool enable) { 112d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat mDebug = enable; 113d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat VolumeCollection::iterator it; 114d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat for (it = mVolumes->begin(); it != mVolumes->end(); ++it) { 115d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat (*it)->setDebug(enable); 116d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 117d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat} 118d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 119f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::start() { 120f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 121f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 122f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 123f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::stop() { 124f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 125f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 126f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 127f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::addVolume(Volume *v) { 128f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mVolumes->push_back(v); 129f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 130f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 131f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 132fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehatvoid VolumeManager::handleBlockEvent(NetlinkEvent *evt) { 133fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat const char *devpath = evt->findParam("DEVPATH"); 134f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 135fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat /* Lookup a volume to handle this device */ 136f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat VolumeCollection::iterator it; 137f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat bool hit = false; 138f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat for (it = mVolumes->begin(); it != mVolumes->end(); ++it) { 139fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehat if (!(*it)->handleBlockEvent(evt)) { 140a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef NETLINK_DEBUG 14197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Device '%s' event handled by volume %s\n", devpath, (*it)->getLabel()); 142a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 143f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat hit = true; 144f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat break; 145f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 146f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 147f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 148f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat if (!hit) { 149a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#ifdef NETLINK_DEBUG 15097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("No volumes handled block event for '%s'", devpath); 151a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#endif 152f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 153f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 154f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 155f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatint VolumeManager::listVolumes(SocketClient *cli) { 156f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat VolumeCollection::iterator i; 157f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 158f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 159f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat char *buffer; 160f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat asprintf(&buffer, "%s %s %d", 161f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat (*i)->getLabel(), (*i)->getMountpoint(), 162f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat (*i)->getState()); 163a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat cli->sendMsg(ResponseCode::VolumeListResult, buffer, false); 164f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat free(buffer); 165f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat } 166a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat cli->sendMsg(ResponseCode::CommandOkay, "Volumes listed.", false); 167f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return 0; 168f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 16949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 170a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::formatVolume(const char *label) { 171a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 172a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 173a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 174a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 175a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 176a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 177a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1783b17005083be230509480ea65ae67c237142fadaKen Sumrall if (mVolManagerDisabled) { 1793b17005083be230509480ea65ae67c237142fadaKen Sumrall errno = EBUSY; 1803b17005083be230509480ea65ae67c237142fadaKen Sumrall return -1; 1813b17005083be230509480ea65ae67c237142fadaKen Sumrall } 1823b17005083be230509480ea65ae67c237142fadaKen Sumrall 183a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->formatVol(); 184a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 185a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 186508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Rootint VolumeManager::getObbMountPath(const char *sourceFile, char *mountPath, int mountPathLen) { 187508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root char idHash[33]; 188508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root if (!asecHash(sourceFile, idHash, sizeof(idHash))) { 189508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root SLOGE("Hash of '%s' failed (%s)", sourceFile, strerror(errno)); 190508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root return -1; 191508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root } 192508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 193508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root memset(mountPath, 0, mountPathLen); 194508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root snprintf(mountPath, mountPathLen, "%s/%s", Volume::LOOPDIR, idHash); 195508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 196508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root if (access(mountPath, F_OK)) { 197508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root errno = ENOENT; 198508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root return -1; 199508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root } 200508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 201508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root return 0; 202508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root} 203508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 204a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::getAsecMountPath(const char *id, char *buffer, int maxlen) { 20588ac2c06539485942bf414efda2d39647fa1a415San Mehat char asecFileName[255]; 206344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 207344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (findAsec(id, asecFileName, sizeof(asecFileName))) { 208344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't find ASEC %s", id); 209344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 210344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 21188ac2c06539485942bf414efda2d39647fa1a415San Mehat 21288ac2c06539485942bf414efda2d39647fa1a415San Mehat memset(buffer, 0, maxlen); 21388ac2c06539485942bf414efda2d39647fa1a415San Mehat if (access(asecFileName, F_OK)) { 21488ac2c06539485942bf414efda2d39647fa1a415San Mehat errno = ENOENT; 21588ac2c06539485942bf414efda2d39647fa1a415San Mehat return -1; 21688ac2c06539485942bf414efda2d39647fa1a415San Mehat } 217a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 2183bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat snprintf(buffer, maxlen, "%s/%s", Volume::ASECDIR, id); 219a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 220a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 221a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 222736910ca99a40b9add4353bf619e778c40938948Dianne Hackbornint VolumeManager::getAsecFilesystemPath(const char *id, char *buffer, int maxlen) { 223736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn char asecFileName[255]; 224344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 225344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (findAsec(id, asecFileName, sizeof(asecFileName))) { 226344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't find ASEC %s", id); 227344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 228344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 229736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn 230736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn memset(buffer, 0, maxlen); 231736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn if (access(asecFileName, F_OK)) { 232736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn errno = ENOENT; 233736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn return -1; 234736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn } 235736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn 236736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn snprintf(buffer, maxlen, "%s", asecFileName); 237736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn return 0; 238736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn} 239736910ca99a40b9add4353bf619e778c40938948Dianne Hackborn 240344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Rootint VolumeManager::createAsec(const char *id, unsigned int numSectors, const char *fstype, 241344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root const char *key, const int ownerUid, bool isExternal) { 242fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat struct asec_superblock sb; 243fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat memset(&sb, 0, sizeof(sb)); 244fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat 245344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root const bool wantFilesystem = strcmp(fstype, "none"); 246344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root bool usingExt4 = false; 247344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (wantFilesystem) { 248344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root usingExt4 = !strcmp(fstype, "ext4"); 249344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (usingExt4) { 250344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root sb.c_opts |= ASEC_SB_C_OPTS_EXT4; 251344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } else if (strcmp(fstype, "fat")) { 252344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Invalid filesystem type %s", fstype); 253344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root errno = EINVAL; 254344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 255344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 256344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 257344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 258fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat sb.magic = ASEC_SB_MAGIC; 259fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat sb.ver = ASEC_SB_VER; 260a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 261d31e380bd9689dd9629b510ffe324707e261b439San Mehat if (numSectors < ((1024*1024)/512)) { 26297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Invalid container size specified (%d sectors)", numSectors); 263d31e380bd9689dd9629b510ffe324707e261b439San Mehat errno = EINVAL; 264d31e380bd9689dd9629b510ffe324707e261b439San Mehat return -1; 265d31e380bd9689dd9629b510ffe324707e261b439San Mehat } 266d31e380bd9689dd9629b510ffe324707e261b439San Mehat 267a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (lookupVolume(id)) { 26897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC id '%s' currently exists", id); 269a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EADDRINUSE; 270a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 271a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 272a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 273a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 274344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 275344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (!findAsec(id, asecFileName, sizeof(asecFileName))) { 276344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("ASEC file '%s' currently exists - destroy it first! (%s)", 277344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root asecFileName, strerror(errno)); 278344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root errno = EADDRINUSE; 279344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 280344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 281344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 282344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root const char *asecDir = isExternal ? Volume::SEC_ASECDIR_EXT : Volume::SEC_ASECDIR_INT; 283344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 284344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root snprintf(asecFileName, sizeof(asecFileName), "%s/%s.asec", asecDir, id); 285a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 286a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!access(asecFileName, F_OK)) { 28797ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC file '%s' currently exists - destroy it first! (%s)", 288344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root asecFileName, strerror(errno)); 289a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EADDRINUSE; 290a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 291a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 292a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 293fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat /* 294fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat * Add some headroom 295fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat */ 296fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat unsigned fatSize = (((numSectors * 4) / 512) + 1) * 2; 297fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat unsigned numImgSectors = numSectors + fatSize + 2; 298fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat 299fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (numImgSectors % 63) { 300fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat numImgSectors += (63 - (numImgSectors % 63)); 301fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat } 302fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat 303fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat // Add +1 for our superblock which is at the end 304fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (Loop::createImageFile(asecFileName, numImgSectors + 1)) { 30597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC image file creation failed (%s)", strerror(errno)); 306a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 307a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 308a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 309d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat char idHash[33]; 310d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (!asecHash(id, idHash, sizeof(idHash))) { 31197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Hash of '%s' failed (%s)", id, strerror(errno)); 312d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat unlink(asecFileName); 313d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat return -1; 314d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 315d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 316a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 317d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (Loop::create(idHash, asecFileName, loopDevice, sizeof(loopDevice))) { 31897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC loop device creation failed (%s)", strerror(errno)); 319a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat unlink(asecFileName); 320a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 321a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 322a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 323b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat char dmDevice[255]; 324b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat bool cleanupDm = false; 325a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 326b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat if (strcmp(key, "none")) { 327fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat // XXX: This is all we support for now 328fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat sb.c_cipher = ASEC_SB_C_CIPHER_TWOFISH; 329d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (Devmapper::create(idHash, loopDevice, key, numImgSectors, dmDevice, 330b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat sizeof(dmDevice))) { 33197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC device mapping failed (%s)", strerror(errno)); 332b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat Loop::destroyByDevice(loopDevice); 333b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat unlink(asecFileName); 334b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat return -1; 335b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 336b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat cleanupDm = true; 337b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } else { 338fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat sb.c_cipher = ASEC_SB_C_CIPHER_NONE; 339b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat strcpy(dmDevice, loopDevice); 340b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 341b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 342fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat /* 343fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat * Drop down the superblock at the end of the file 344fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat */ 345fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat 346fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat int sbfd = open(loopDevice, O_RDWR); 347fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (sbfd < 0) { 34897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to open new DM device for superblock write (%s)", strerror(errno)); 349fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (cleanupDm) { 350d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat Devmapper::destroy(idHash); 351fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat } 352fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat Loop::destroyByDevice(loopDevice); 353fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat unlink(asecFileName); 354fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat return -1; 355fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat } 356fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat 357fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (lseek(sbfd, (numImgSectors * 512), SEEK_SET) < 0) { 358fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat close(sbfd); 35997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to lseek for superblock (%s)", strerror(errno)); 360fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (cleanupDm) { 361d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat Devmapper::destroy(idHash); 362fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat } 363fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat Loop::destroyByDevice(loopDevice); 364fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat unlink(asecFileName); 365fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat return -1; 366fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat } 367fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat 368fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (write(sbfd, &sb, sizeof(sb)) != sizeof(sb)) { 369fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat close(sbfd); 37097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to write superblock (%s)", strerror(errno)); 371fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (cleanupDm) { 372d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat Devmapper::destroy(idHash); 373fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat } 374fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat Loop::destroyByDevice(loopDevice); 375fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat unlink(asecFileName); 376fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat return -1; 377fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat } 378fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat close(sbfd); 379fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat 380344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (wantFilesystem) { 381344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int formatStatus; 382344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (usingExt4) { 383344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root formatStatus = Ext4::format(dmDevice); 384344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } else { 385344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root formatStatus = Fat::format(dmDevice, numImgSectors); 386b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 387a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 388344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (formatStatus < 0) { 389344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("ASEC fs format failed (%s)", strerror(errno)); 390b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat if (cleanupDm) { 391d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat Devmapper::destroy(idHash); 392b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 393eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat Loop::destroyByDevice(loopDevice); 394eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat unlink(asecFileName); 395eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat return -1; 396eb13a90bb96b329d8e24a6c3d4720ae88451d301San Mehat } 397344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 398a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat char mountPoint[255]; 399a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat 400a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::ASECDIR, id); 401344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (mkdir(mountPoint, 0000)) { 402a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat if (errno != EEXIST) { 40397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Mountpoint creation failed (%s)", strerror(errno)); 404a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat if (cleanupDm) { 405d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat Devmapper::destroy(idHash); 406a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat } 407a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat Loop::destroyByDevice(loopDevice); 408a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat unlink(asecFileName); 409a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat return -1; 410a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat } 411a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat } 412a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 413344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int mountStatus; 414344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (usingExt4) { 415344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root mountStatus = Ext4::doMount(dmDevice, mountPoint, false, false, false); 416344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } else { 417344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root mountStatus = Fat::doMount(dmDevice, mountPoint, false, false, false, ownerUid, 0, 0000, 418344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root false); 419344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 420344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 421344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (mountStatus) { 42297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC FAT mount failed (%s)", strerror(errno)); 423a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat if (cleanupDm) { 424d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat Devmapper::destroy(idHash); 425a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat } 426a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat Loop::destroyByDevice(loopDevice); 427a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat unlink(asecFileName); 428a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat return -1; 429b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 430344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 431344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (usingExt4) { 432344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int dirfd = open(mountPoint, O_DIRECTORY); 433344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (dirfd >= 0) { 434344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (fchown(dirfd, ownerUid, AID_SYSTEM) 435344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root || fchmod(dirfd, S_IRUSR | S_IWUSR | S_IXUSR | S_ISGID | S_IRGRP | S_IXGRP)) { 436344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGI("Cannot chown/chmod new ASEC mount point %s", mountPoint); 437344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 438344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root close(dirfd); 439344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 440344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 441a1091cb0c448a933068f9120fe6946c09812bfb6San Mehat } else { 44297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGI("Created raw secure container %s (no filesystem)", id); 443a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 44488705166ab82057090a070c6d4200c3d9db76f11San Mehat 445cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root mActiveContainers->push_back(new ContainerData(strdup(id), ASEC)); 446a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 447a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 448a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 449a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::finalizeAsec(const char *id) { 450a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 451a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 452a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 453a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 454344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (findAsec(id, asecFileName, sizeof(asecFileName))) { 455344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't find ASEC %s", id); 456344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 457344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 458a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 459d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat char idHash[33]; 460d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (!asecHash(id, idHash, sizeof(idHash))) { 46197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Hash of '%s' failed (%s)", id, strerror(errno)); 462d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat return -1; 463d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 464d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 465d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (Loop::lookupActive(idHash, loopDevice, sizeof(loopDevice))) { 46697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to finalize %s (%s)", id, strerror(errno)); 467a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 468a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 469a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 470344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root unsigned int nr_sec = 0; 471344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root struct asec_superblock sb; 472344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 473344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (Loop::lookupInfo(loopDevice, &sb, &nr_sec)) { 474344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 475344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 476344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 4773bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::ASECDIR, id); 478344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 479344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int result = 0; 480344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (sb.c_opts & ASEC_SB_C_OPTS_EXT4) { 481344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result = Ext4::doMount(loopDevice, mountPoint, true, true, true); 482344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } else { 483344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result = Fat::doMount(loopDevice, mountPoint, true, true, true, 0, 0, 0227, false); 484344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 485344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 486344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (result) { 48797ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC finalize mount failed (%s)", strerror(errno)); 488a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 489a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 490a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 491d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 49297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("ASEC %s finalized", id); 493d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 494a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 495a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 496a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 497344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Rootint VolumeManager::fixupAsecPermissions(const char *id, gid_t gid, const char* filename) { 498344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root char asecFileName[255]; 499344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root char loopDevice[255]; 500344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root char mountPoint[255]; 501344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 502344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (gid < AID_APP) { 503344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Group ID is not in application range"); 504344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 505344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 506344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 507344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (findAsec(id, asecFileName, sizeof(asecFileName))) { 508344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't find ASEC %s", id); 509344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 510344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 511344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 512344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root char idHash[33]; 513344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (!asecHash(id, idHash, sizeof(idHash))) { 514344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Hash of '%s' failed (%s)", id, strerror(errno)); 515344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 516344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 517344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 518344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (Loop::lookupActive(idHash, loopDevice, sizeof(loopDevice))) { 519344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Unable fix permissions during lookup on %s (%s)", id, strerror(errno)); 520344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 521344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 522344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 523344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root unsigned int nr_sec = 0; 524344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root struct asec_superblock sb; 525344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 526344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (Loop::lookupInfo(loopDevice, &sb, &nr_sec)) { 527344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 528344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 529344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 530344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::ASECDIR, id); 531344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 532344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int result = 0; 533344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if ((sb.c_opts & ASEC_SB_C_OPTS_EXT4) == 0) { 534344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return 0; 535344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 536344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 537344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int ret = Ext4::doMount(loopDevice, mountPoint, 538344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root false /* read-only */, 539344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root true /* remount */, 540344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root false /* executable */); 541344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (ret) { 542344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Unable remount to fix permissions for %s (%s)", id, strerror(errno)); 543344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 544344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 545344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 546344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root char *paths[] = { mountPoint, NULL }; 547344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 548344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root FTS *fts = fts_open(paths, FTS_PHYSICAL | FTS_NOCHDIR | FTS_XDEV, NULL); 549344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (fts) { 550344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root // Traverse the entire hierarchy and chown to system UID. 551344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root for (FTSENT *ftsent = fts_read(fts); ftsent != NULL; ftsent = fts_read(fts)) { 552344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root // We don't care about the lost+found directory. 553344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (!strcmp(ftsent->fts_name, "lost+found")) { 554344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root continue; 555344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 556344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 557344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root /* 558344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root * There can only be one file marked as private right now. 559344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root * This should be more robust, but it satisfies the requirements 560344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root * we have for right now. 561344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root */ 562344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root const bool privateFile = !strcmp(ftsent->fts_name, filename); 563344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 564344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int fd = open(ftsent->fts_accpath, O_NOFOLLOW); 565344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (fd < 0) { 566344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't open file %s: %s", ftsent->fts_accpath, strerror(errno)); 567344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result = -1; 568344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root continue; 569344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 570344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 571344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result |= fchown(fd, AID_SYSTEM, privateFile? gid : AID_SYSTEM); 572344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 573344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (ftsent->fts_info & FTS_D) { 5741a673c868c2d2d81fcaeab34b4a7c75d4a978584Kenny Root result |= fchmod(fd, 0755); 575348c8aba0d2df2996e0fe57900ef518c6aeb4b29Kenny Root } else if (ftsent->fts_info & FTS_F) { 576344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result |= fchmod(fd, privateFile ? 0640 : 0644); 577344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 578344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root close(fd); 579344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 580344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root fts_close(fts); 581344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 582344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root // Finally make the directory readable by everyone. 583344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int dirfd = open(mountPoint, O_DIRECTORY); 584344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (dirfd < 0 || fchmod(dirfd, 0755)) { 585344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't change owner of existing directory %s: %s", mountPoint, strerror(errno)); 586344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result |= -1; 587344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 588344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root close(dirfd); 589344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } else { 590344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result |= -1; 591344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 592344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 593344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result |= Ext4::doMount(loopDevice, mountPoint, 594344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root true /* read-only */, 595344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root true /* remount */, 596344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root true /* execute */); 597344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 598344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (result) { 599344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("ASEC fix permissions failed (%s)", strerror(errno)); 600344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 601344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 602344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 603344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (mDebug) { 604344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGD("ASEC %s permissions fixed", id); 605344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 606344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return 0; 607344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root} 608344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 609048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehatint VolumeManager::renameAsec(const char *id1, const char *id2) { 610344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root char asecFilename1[255]; 611048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat char *asecFilename2; 612048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat char mountPoint[255]; 613048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat 614344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root const char *dir; 615344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 616344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (findAsec(id1, asecFilename1, sizeof(asecFilename1), &dir)) { 617344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't find ASEC %s", id1); 618344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 619344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 620344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 621344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root asprintf(&asecFilename2, "%s/%s.asec", dir, id2); 622048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat 6233bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::ASECDIR, id1); 624048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat if (isMountpointMounted(mountPoint)) { 62597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Rename attempt when src mounted"); 626048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat errno = EBUSY; 627048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat goto out_err; 628048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat } 629048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat 63096956ed0e220cb62a4a96136976ded0d8c2d9075San Mehat snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::ASECDIR, id2); 63196956ed0e220cb62a4a96136976ded0d8c2d9075San Mehat if (isMountpointMounted(mountPoint)) { 63297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Rename attempt when dst mounted"); 63396956ed0e220cb62a4a96136976ded0d8c2d9075San Mehat errno = EBUSY; 63496956ed0e220cb62a4a96136976ded0d8c2d9075San Mehat goto out_err; 63596956ed0e220cb62a4a96136976ded0d8c2d9075San Mehat } 63696956ed0e220cb62a4a96136976ded0d8c2d9075San Mehat 637048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat if (!access(asecFilename2, F_OK)) { 63897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Rename attempt when dst exists"); 639048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat errno = EADDRINUSE; 640048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat goto out_err; 641048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat } 642048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat 643048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat if (rename(asecFilename1, asecFilename2)) { 64497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Rename of '%s' to '%s' failed (%s)", asecFilename1, asecFilename2, strerror(errno)); 645048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat goto out_err; 646048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat } 647048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat 648048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat free(asecFilename2); 649048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat return 0; 650048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat 651048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehatout_err: 652048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat free(asecFilename2); 653048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat return -1; 654048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat} 655048b0801fcd6fcfbb8fa812284c751181e4821b8San Mehat 656fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root#define UNMOUNT_RETRIES 5 657fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root#define UNMOUNT_SLEEP_BETWEEN_RETRY_MS (1000 * 1000) 6584ba8948dc16463053e21cda5744f519a555080d0San Mehatint VolumeManager::unmountAsec(const char *id, bool force) { 659a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 660a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 661a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 662344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (findAsec(id, asecFileName, sizeof(asecFileName))) { 663344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't find ASEC %s", id); 664344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 665344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 666344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 6673bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::ASECDIR, id); 668a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 669d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat char idHash[33]; 670d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (!asecHash(id, idHash, sizeof(idHash))) { 67197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Hash of '%s' failed (%s)", id, strerror(errno)); 672d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat return -1; 673d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 674d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 675fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return unmountLoopImage(id, idHash, asecFileName, mountPoint, force); 676fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root} 677fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 678508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Rootint VolumeManager::unmountObb(const char *fileName, bool force) { 679fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root char mountPoint[255]; 680fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 681fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root char idHash[33]; 682fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (!asecHash(fileName, idHash, sizeof(idHash))) { 683fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("Hash of '%s' failed (%s)", fileName, strerror(errno)); 684fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return -1; 685fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 686fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 687fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::LOOPDIR, idHash); 688fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 689fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return unmountLoopImage(fileName, idHash, fileName, mountPoint, force); 690fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root} 691fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 692fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Rootint VolumeManager::unmountLoopImage(const char *id, const char *idHash, 693fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root const char *fileName, const char *mountPoint, bool force) { 6940586d54053ee00e6d6523d4f125282ccb9a24aabSan Mehat if (!isMountpointMounted(mountPoint)) { 695fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("Unmount request for %s when not mounted", id); 696918e5f9f10b9c1ff929683743ffbf229027ce240Kenny Root errno = ENOENT; 697b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat return -1; 698b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 69923969931fad6e993832208f099f6eea0f6f76eb5San Mehat 700b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat int i, rc; 701fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root for (i = 1; i <= UNMOUNT_RETRIES; i++) { 702b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat rc = umount(mountPoint); 703b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat if (!rc) { 704b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat break; 705a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 706b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat if (rc && (errno == EINVAL || errno == ENOENT)) { 707fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGI("Container %s unmounted OK", id); 708b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat rc = 0; 709b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat break; 710a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 711fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGW("%s unmount attempt %d failed (%s)", 7128c940ef7dbd423cadc92982b44a65ed1014389e2San Mehat id, i, strerror(errno)); 7138c940ef7dbd423cadc92982b44a65ed1014389e2San Mehat 7144ba8948dc16463053e21cda5744f519a555080d0San Mehat int action = 0; // default is to just complain 7154ba8948dc16463053e21cda5744f519a555080d0San Mehat 7164ba8948dc16463053e21cda5744f519a555080d0San Mehat if (force) { 717fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (i > (UNMOUNT_RETRIES - 2)) 7184ba8948dc16463053e21cda5744f519a555080d0San Mehat action = 2; // SIGKILL 719fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root else if (i > (UNMOUNT_RETRIES - 3)) 7204ba8948dc16463053e21cda5744f519a555080d0San Mehat action = 1; // SIGHUP 7214ba8948dc16463053e21cda5744f519a555080d0San Mehat } 7228c940ef7dbd423cadc92982b44a65ed1014389e2San Mehat 723586536c60b773e3517531ad8a6cb0de6722c67fcSan Mehat Process::killProcessesWithOpenFiles(mountPoint, action); 724fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root usleep(UNMOUNT_SLEEP_BETWEEN_RETRY_MS); 725b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 726b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 727b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat if (rc) { 7284ba8948dc16463053e21cda5744f519a555080d0San Mehat errno = EBUSY; 72997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to unmount container %s (%s)", id, strerror(errno)); 730b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat return -1; 731b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 732b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 73312f4b89046b54de1bdc188b7057ba77d7566e573San Mehat int retries = 10; 73412f4b89046b54de1bdc188b7057ba77d7566e573San Mehat 73512f4b89046b54de1bdc188b7057ba77d7566e573San Mehat while(retries--) { 73612f4b89046b54de1bdc188b7057ba77d7566e573San Mehat if (!rmdir(mountPoint)) { 73712f4b89046b54de1bdc188b7057ba77d7566e573San Mehat break; 73812f4b89046b54de1bdc188b7057ba77d7566e573San Mehat } 73912f4b89046b54de1bdc188b7057ba77d7566e573San Mehat 74097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Failed to rmdir %s (%s)", mountPoint, strerror(errno)); 741fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root usleep(UNMOUNT_SLEEP_BETWEEN_RETRY_MS); 74212f4b89046b54de1bdc188b7057ba77d7566e573San Mehat } 74312f4b89046b54de1bdc188b7057ba77d7566e573San Mehat 74412f4b89046b54de1bdc188b7057ba77d7566e573San Mehat if (!retries) { 74597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Timed out trying to rmdir %s (%s)", mountPoint, strerror(errno)); 746f5c61980969a0b49bda37b5dc94ffe675ebd5a5aSan Mehat } 74788705166ab82057090a070c6d4200c3d9db76f11San Mehat 748d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (Devmapper::destroy(idHash) && errno != ENXIO) { 74997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to destroy devmapper instance (%s)", strerror(errno)); 750a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 751a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 752a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 753d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (!Loop::lookupActive(idHash, loopDevice, sizeof(loopDevice))) { 754a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat Loop::destroyByDevice(loopDevice); 755d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } else { 756fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGW("Failed to find loop device for {%s} (%s)", fileName, strerror(errno)); 757a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 75888705166ab82057090a070c6d4200c3d9db76f11San Mehat 75988705166ab82057090a070c6d4200c3d9db76f11San Mehat AsecIdCollection::iterator it; 76088705166ab82057090a070c6d4200c3d9db76f11San Mehat for (it = mActiveContainers->begin(); it != mActiveContainers->end(); ++it) { 761cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root ContainerData* cd = *it; 762cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root if (!strcmp(cd->id, id)) { 76388705166ab82057090a070c6d4200c3d9db76f11San Mehat free(*it); 76488705166ab82057090a070c6d4200c3d9db76f11San Mehat mActiveContainers->erase(it); 76588705166ab82057090a070c6d4200c3d9db76f11San Mehat break; 76688705166ab82057090a070c6d4200c3d9db76f11San Mehat } 76788705166ab82057090a070c6d4200c3d9db76f11San Mehat } 76888705166ab82057090a070c6d4200c3d9db76f11San Mehat if (it == mActiveContainers->end()) { 76997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("mActiveContainers is inconsistent!"); 77088705166ab82057090a070c6d4200c3d9db76f11San Mehat } 771b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat return 0; 772b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat} 773b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 7744ba8948dc16463053e21cda5744f519a555080d0San Mehatint VolumeManager::destroyAsec(const char *id, bool force) { 775b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat char asecFileName[255]; 776b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat char mountPoint[255]; 777b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 778344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (findAsec(id, asecFileName, sizeof(asecFileName))) { 779344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't find ASEC %s", id); 780344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 781344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 782344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 78355013f7131ffe094e1c7d929cfc32b3b25096a9bSan Mehat snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::ASECDIR, id); 784b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 7850586d54053ee00e6d6523d4f125282ccb9a24aabSan Mehat if (isMountpointMounted(mountPoint)) { 786d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 78797ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Unmounting container before destroy"); 788d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 7894ba8948dc16463053e21cda5744f519a555080d0San Mehat if (unmountAsec(id, force)) { 79097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to unmount asec %s for destroy (%s)", id, strerror(errno)); 7910586d54053ee00e6d6523d4f125282ccb9a24aabSan Mehat return -1; 7920586d54053ee00e6d6523d4f125282ccb9a24aabSan Mehat } 7930586d54053ee00e6d6523d4f125282ccb9a24aabSan Mehat } 794a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 7950586d54053ee00e6d6523d4f125282ccb9a24aabSan Mehat if (unlink(asecFileName)) { 79697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to unlink asec '%s' (%s)", asecFileName, strerror(errno)); 7970586d54053ee00e6d6523d4f125282ccb9a24aabSan Mehat return -1; 7980586d54053ee00e6d6523d4f125282ccb9a24aabSan Mehat } 799a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 800d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 80197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("ASEC %s destroyed", id); 802d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 803a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 804a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 805a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 806344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Rootbool VolumeManager::isAsecInDirectory(const char *dir, const char *asecName) const { 807344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int dirfd = open(dir, O_DIRECTORY); 808344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (dirfd < 0) { 809344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't open internal ASEC dir (%s)", strerror(errno)); 810344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 811344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 812344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 813344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root bool ret = false; 814344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 815344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (!faccessat(dirfd, asecName, F_OK, AT_SYMLINK_NOFOLLOW)) { 816344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root ret = true; 817344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 818344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 819344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root close(dirfd); 820344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 821344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return ret; 822344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root} 823344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 824344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Rootint VolumeManager::findAsec(const char *id, char *asecPath, size_t asecPathLen, 825344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root const char **directory) const { 826344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int dirfd, fd; 827344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root const int idLen = strlen(id); 828344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root char *asecName; 829344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 830344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (asprintf(&asecName, "%s.asec", id) < 0) { 831344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't allocate string to write ASEC name"); 832344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 833344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 834344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 835344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root const char *dir; 836344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (isAsecInDirectory(Volume::SEC_ASECDIR_INT, asecName)) { 837344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root dir = Volume::SEC_ASECDIR_INT; 838344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } else if (isAsecInDirectory(Volume::SEC_ASECDIR_EXT, asecName)) { 839344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root dir = Volume::SEC_ASECDIR_EXT; 840344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } else { 841344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root free(asecName); 842344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 843344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 844344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 845344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (directory != NULL) { 846344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root *directory = dir; 847344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 848344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 849344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (asecPath != NULL) { 850344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int written = snprintf(asecPath, asecPathLen, "%s/%s", dir, asecName); 851344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (written < 0 || static_cast<size_t>(written) >= asecPathLen) { 852344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root free(asecName); 853344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 854344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 855344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 856344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 857344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root free(asecName); 858344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return 0; 859344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root} 860344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 861a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatint VolumeManager::mountAsec(const char *id, const char *key, int ownerUid) { 862a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char asecFileName[255]; 863a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mountPoint[255]; 864a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 865344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (findAsec(id, asecFileName, sizeof(asecFileName))) { 866344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root SLOGE("Couldn't find ASEC %s", id); 867344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root return -1; 868344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 869344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 8703bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::ASECDIR, id); 871a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 872a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (isMountpointMounted(mountPoint)) { 87397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC %s already mounted", id); 874a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat errno = EBUSY; 875a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 876a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 877a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 878d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat char idHash[33]; 879d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (!asecHash(id, idHash, sizeof(idHash))) { 88097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Hash of '%s' failed (%s)", id, strerror(errno)); 881d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat return -1; 882d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 8837b18a7b36f61574c0f0bdde0a7409dc36676fa12Kenny Root 884a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char loopDevice[255]; 885d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (Loop::lookupActive(idHash, loopDevice, sizeof(loopDevice))) { 886d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (Loop::create(idHash, asecFileName, loopDevice, sizeof(loopDevice))) { 88797ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC loop device creation failed (%s)", strerror(errno)); 888a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 889a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 890d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 89197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("New loop device created at %s", loopDevice); 892d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 893b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } else { 894d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 89597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Found active loopback for %s at %s", asecFileName, loopDevice); 896d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 897b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 898b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat 899b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat char dmDevice[255]; 900b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat bool cleanupDm = false; 901fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat int fd; 902fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat unsigned int nr_sec = 0; 903fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat struct asec_superblock sb; 904344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 905344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (Loop::lookupInfo(loopDevice, &sb, &nr_sec)) { 906fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat return -1; 907fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat } 908fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat 909d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 91097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Container sb magic/ver (%.8x/%.2x)", sb.magic, sb.ver); 911d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 912fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (sb.magic != ASEC_SB_MAGIC || sb.ver != ASEC_SB_VER) { 91397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Bad container magic/version (%.8x/%.2x)", sb.magic, sb.ver); 914fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat Loop::destroyByDevice(loopDevice); 915fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat errno = EMEDIUMTYPE; 916fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat return -1; 917fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat } 918fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat nr_sec--; // We don't want the devmapping to extend onto our superblock 919fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat 920fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (strcmp(key, "none")) { 921d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (Devmapper::lookupActive(idHash, dmDevice, sizeof(dmDevice))) { 922d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (Devmapper::create(idHash, loopDevice, key, nr_sec, 923b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat dmDevice, sizeof(dmDevice))) { 92497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC device mapping failed (%s)", strerror(errno)); 925b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat Loop::destroyByDevice(loopDevice); 926b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat return -1; 927b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 928d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 92997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("New devmapper instance created at %s", dmDevice); 930d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 931b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } else { 932d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 93397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Found active devmapper for %s at %s", asecFileName, dmDevice); 934d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 935b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 936b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat cleanupDm = true; 937b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } else { 938b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat strcpy(dmDevice, loopDevice); 939a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 940a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 941344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (mkdir(mountPoint, 0000)) { 942b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat if (errno != EEXIST) { 94397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Mountpoint creation failed (%s)", strerror(errno)); 944b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat if (cleanupDm) { 945d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat Devmapper::destroy(idHash); 946b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 947b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat Loop::destroyByDevice(loopDevice); 948b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat return -1; 949b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 950a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 951a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 952cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root /* 953cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root * The device mapper node needs to be created. Sometimes it takes a 954cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root * while. Wait for up to 1 second. We could also inspect incoming uevents, 955cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root * but that would take more effort. 956cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root */ 957cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root int tries = 25; 958cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root while (tries--) { 959cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root if (!access(dmDevice, F_OK) || errno != ENOENT) { 960cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root break; 961cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root } 962cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root usleep(40 * 1000); 963cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root } 964cdc2a1c83575a349ee44035de8c3b38b8b401003Kenny Root 965344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root int result; 966344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (sb.c_opts & ASEC_SB_C_OPTS_EXT4) { 967344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result = Ext4::doMount(dmDevice, mountPoint, true, false, true); 968344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } else { 969344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root result = Fat::doMount(dmDevice, mountPoint, true, false, true, ownerUid, 0, 0222, false); 970344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root } 971344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root 972344ca10856f3d3087a3288ce8f91ad83665d93fbKenny Root if (result) { 97397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("ASEC mount failed (%s)", strerror(errno)); 974b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat if (cleanupDm) { 975d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat Devmapper::destroy(idHash); 976b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat } 977b78a32c1d5eeb243bdac0eaf18effb1897f1ee67San Mehat Loop::destroyByDevice(loopDevice); 978a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return -1; 979a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 980a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 981cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root mActiveContainers->push_back(new ContainerData(strdup(id), ASEC)); 982d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 98397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("ASEC %s mounted", id); 984d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 985a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return 0; 986a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 987a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 98893ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny RootVolume* VolumeManager::getVolumeForFile(const char *fileName) { 98993ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root VolumeCollection::iterator i; 99093ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root 99193ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 99293ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root const char* mountPoint = (*i)->getMountpoint(); 99393ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root if (!strncmp(fileName, mountPoint, strlen(mountPoint))) { 99493ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root return *i; 99593ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root } 99693ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root } 99793ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root 99893ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root return NULL; 99993ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root} 100093ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root 1001fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root/** 1002fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root * Mounts an image file <code>img</code>. 1003fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root */ 10046947904a76b69a1db20a3ddd30c0bcd281922fdeJeff Sharkeyint VolumeManager::mountObb(const char *img, const char *key, int ownerGid) { 1005fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root char mountPoint[255]; 1006fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1007fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root char idHash[33]; 1008fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (!asecHash(img, idHash, sizeof(idHash))) { 1009fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("Hash of '%s' failed (%s)", img, strerror(errno)); 1010fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return -1; 1011fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1012fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1013fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root snprintf(mountPoint, sizeof(mountPoint), "%s/%s", Volume::LOOPDIR, idHash); 1014fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1015fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (isMountpointMounted(mountPoint)) { 1016fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("Image %s already mounted", img); 1017fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root errno = EBUSY; 1018fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return -1; 1019fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1020fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1021fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root char loopDevice[255]; 1022fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (Loop::lookupActive(idHash, loopDevice, sizeof(loopDevice))) { 1023fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (Loop::create(idHash, img, loopDevice, sizeof(loopDevice))) { 1024fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("Image loop device creation failed (%s)", strerror(errno)); 1025fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return -1; 1026fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1027fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (mDebug) { 1028fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGD("New loop device created at %s", loopDevice); 1029fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1030fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } else { 1031fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (mDebug) { 1032fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGD("Found active loopback for %s at %s", img, loopDevice); 1033fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1034fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1035fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1036fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root char dmDevice[255]; 1037fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root bool cleanupDm = false; 1038fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root int fd; 1039fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root unsigned int nr_sec = 0; 1040fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1041fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if ((fd = open(loopDevice, O_RDWR)) < 0) { 1042fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("Failed to open loopdevice (%s)", strerror(errno)); 1043fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root Loop::destroyByDevice(loopDevice); 1044fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return -1; 1045fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1046fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1047fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (ioctl(fd, BLKGETSIZE, &nr_sec)) { 1048fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("Failed to get loop size (%s)", strerror(errno)); 1049fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root Loop::destroyByDevice(loopDevice); 1050fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root close(fd); 1051fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return -1; 1052fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1053fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1054fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root close(fd); 1055fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1056fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (strcmp(key, "none")) { 1057fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (Devmapper::lookupActive(idHash, dmDevice, sizeof(dmDevice))) { 1058fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (Devmapper::create(idHash, loopDevice, key, nr_sec, 1059fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root dmDevice, sizeof(dmDevice))) { 1060fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("ASEC device mapping failed (%s)", strerror(errno)); 1061fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root Loop::destroyByDevice(loopDevice); 1062fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return -1; 1063fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1064fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (mDebug) { 1065fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGD("New devmapper instance created at %s", dmDevice); 1066fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1067fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } else { 1068fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (mDebug) { 1069fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGD("Found active devmapper for %s at %s", img, dmDevice); 1070fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1071fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1072fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root cleanupDm = true; 1073fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } else { 1074fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root strcpy(dmDevice, loopDevice); 1075fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1076fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1077fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (mkdir(mountPoint, 0755)) { 1078fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (errno != EEXIST) { 1079fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("Mountpoint creation failed (%s)", strerror(errno)); 1080fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (cleanupDm) { 1081fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root Devmapper::destroy(idHash); 1082fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1083fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root Loop::destroyByDevice(loopDevice); 1084fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return -1; 1085fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1086fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1087fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 10886947904a76b69a1db20a3ddd30c0bcd281922fdeJeff Sharkey if (Fat::doMount(dmDevice, mountPoint, true, false, true, 0, ownerGid, 1089fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 0227, false)) { 1090fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGE("Image mount failed (%s)", strerror(errno)); 1091fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (cleanupDm) { 1092fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root Devmapper::destroy(idHash); 1093fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1094fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root Loop::destroyByDevice(loopDevice); 1095fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return -1; 1096fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1097fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 1098cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root mActiveContainers->push_back(new ContainerData(strdup(img), OBB)); 1099fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root if (mDebug) { 1100fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root SLOGD("Image %s mounted", img); 1101fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root } 1102fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root return 0; 1103fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root} 1104fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 110549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehatint VolumeManager::mountVolume(const char *label) { 110649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat Volume *v = lookupVolume(label); 110749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 110849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (!v) { 110949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = ENOENT; 111049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 111149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 111249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 1113a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return v->mountVol(); 1114a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 1115a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1116508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Rootint VolumeManager::listMountedObbs(SocketClient* cli) { 1117508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root char device[256]; 1118508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root char mount_path[256]; 1119508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root char rest[256]; 1120508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root FILE *fp; 1121508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root char line[1024]; 1122508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 1123508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root if (!(fp = fopen("/proc/mounts", "r"))) { 1124508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root SLOGE("Error opening /proc/mounts (%s)", strerror(errno)); 1125508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root return -1; 1126508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root } 1127508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 1128508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root // Create a string to compare against that has a trailing slash 112993ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root int loopDirLen = strlen(Volume::LOOPDIR); 1130508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root char loopDir[loopDirLen + 2]; 1131508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root strcpy(loopDir, Volume::LOOPDIR); 1132508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root loopDir[loopDirLen++] = '/'; 1133508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root loopDir[loopDirLen] = '\0'; 1134508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 1135508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root while(fgets(line, sizeof(line), fp)) { 1136508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root line[strlen(line)-1] = '\0'; 1137508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 1138508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root /* 1139508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root * Should look like: 1140508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root * /dev/block/loop0 /mnt/obb/fc99df1323fd36424f864dcb76b76d65 ... 1141508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root */ 1142508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root sscanf(line, "%255s %255s %255s\n", device, mount_path, rest); 1143508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 1144508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root if (!strncmp(mount_path, loopDir, loopDirLen)) { 1145508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root int fd = open(device, O_RDONLY); 1146508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root if (fd >= 0) { 1147508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root struct loop_info64 li; 1148508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root if (ioctl(fd, LOOP_GET_STATUS64, &li) >= 0) { 1149508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root cli->sendMsg(ResponseCode::AsecListResult, 1150508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root (const char*) li.lo_file_name, false); 1151508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root } 1152508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root close(fd); 1153508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root } 1154508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root } 1155508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root } 1156508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 1157508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root fclose(fp); 1158508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root return 0; 1159508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root} 1160508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root 1161eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehatint VolumeManager::shareEnabled(const char *label, const char *method, bool *enabled) { 1162eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat Volume *v = lookupVolume(label); 1163eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat 1164eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat if (!v) { 1165eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat errno = ENOENT; 1166eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat return -1; 1167eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat } 1168eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat 1169eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat if (strcmp(method, "ums")) { 1170eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat errno = ENOSYS; 1171eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat return -1; 1172eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat } 1173eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat 1174eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat if (v->getState() != Volume::State_Shared) { 1175eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat *enabled = false; 1176b9aed74b146beb7499ebc5775e8ae179d16900efSan Mehat } else { 1177b9aed74b146beb7499ebc5775e8ae179d16900efSan Mehat *enabled = true; 1178eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat } 1179eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat return 0; 1180eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat} 1181eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat 1182a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::shareVolume(const char *label, const char *method) { 1183a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 1184a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1185a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 1186a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 1187a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1188a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1189a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1190a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat /* 1191a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Eventually, we'll want to support additional share back-ends, 1192a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * some of which may work while the media is mounted. For now, 1193a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * we just support UMS 1194a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 1195a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 1196a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 1197a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1198a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1199a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1200a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() == Volume::State_NoMedia) { 1201a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 1202a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1203a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1204a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 120549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (v->getState() != Volume::State_Idle) { 1206a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // You need to unmount manually befoe sharing 120749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = EBUSY; 120849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 120949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 121049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 12113b17005083be230509480ea65ae67c237142fadaKen Sumrall if (mVolManagerDisabled) { 12123b17005083be230509480ea65ae67c237142fadaKen Sumrall errno = EBUSY; 12133b17005083be230509480ea65ae67c237142fadaKen Sumrall return -1; 12143b17005083be230509480ea65ae67c237142fadaKen Sumrall } 12153b17005083be230509480ea65ae67c237142fadaKen Sumrall 12162dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood dev_t d = v->getShareDevice(); 1217a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if ((MAJOR(d) == 0) && (MINOR(d) == 0)) { 1218a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // This volume does not support raw disk access 1219a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 1220a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1221a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1222a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1223a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int fd; 1224a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char nodepath[255]; 1225a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(nodepath, 1226a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sizeof(nodepath), "/dev/block/vold/%d:%d", 1227a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat MAJOR(d), MINOR(d)); 1228a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 122997f2fc110b2ace7914671c2f5852379bd78922e4Mike Lockwood if ((fd = open(MASS_STORAGE_FILE_PATH, O_WRONLY)) < 0) { 123097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to open ums lunfile (%s)", strerror(errno)); 1231a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1232a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1233a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1234a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (write(fd, nodepath, strlen(nodepath)) < 0) { 123597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to write to ums lunfile (%s)", strerror(errno)); 1236a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 1237a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1238a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1239a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1240a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 1241a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->handleVolumeShared(); 1242a28056b38275003895ff5d9576681aca01544822Mike Lockwood if (mUmsSharingCount++ == 0) { 1243a28056b38275003895ff5d9576681aca01544822Mike Lockwood FILE* fp; 1244a28056b38275003895ff5d9576681aca01544822Mike Lockwood mSavedDirtyRatio = -1; // in case we fail 1245a28056b38275003895ff5d9576681aca01544822Mike Lockwood if ((fp = fopen("/proc/sys/vm/dirty_ratio", "r+"))) { 1246a28056b38275003895ff5d9576681aca01544822Mike Lockwood char line[16]; 1247a28056b38275003895ff5d9576681aca01544822Mike Lockwood if (fgets(line, sizeof(line), fp) && sscanf(line, "%d", &mSavedDirtyRatio)) { 1248a28056b38275003895ff5d9576681aca01544822Mike Lockwood fprintf(fp, "%d\n", mUmsDirtyRatio); 1249a28056b38275003895ff5d9576681aca01544822Mike Lockwood } else { 1250a28056b38275003895ff5d9576681aca01544822Mike Lockwood SLOGE("Failed to read dirty_ratio (%s)", strerror(errno)); 1251a28056b38275003895ff5d9576681aca01544822Mike Lockwood } 1252a28056b38275003895ff5d9576681aca01544822Mike Lockwood fclose(fp); 1253a28056b38275003895ff5d9576681aca01544822Mike Lockwood } else { 1254a28056b38275003895ff5d9576681aca01544822Mike Lockwood SLOGE("Failed to open /proc/sys/vm/dirty_ratio (%s)", strerror(errno)); 1255a28056b38275003895ff5d9576681aca01544822Mike Lockwood } 1256a28056b38275003895ff5d9576681aca01544822Mike Lockwood } 1257a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 1258a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 1259a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1260a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint VolumeManager::unshareVolume(const char *label, const char *method) { 1261a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat Volume *v = lookupVolume(label); 1262a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1263a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!v) { 1264a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOENT; 1265a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1266a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1267a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1268a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (strcmp(method, "ums")) { 1269a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENOSYS; 1270a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1271a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1272a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1273a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() != Volume::State_Shared) { 1274a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EINVAL; 1275a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1276a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1277a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1278a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int fd; 127997f2fc110b2ace7914671c2f5852379bd78922e4Mike Lockwood if ((fd = open(MASS_STORAGE_FILE_PATH, O_WRONLY)) < 0) { 128097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to open ums lunfile (%s)", strerror(errno)); 1281a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1282a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1283a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1284a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char ch = 0; 1285a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (write(fd, &ch, 1) < 0) { 128697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Unable to write to ums lunfile (%s)", strerror(errno)); 1287a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 1288a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1289a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1290a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1291a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat close(fd); 1292a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->handleVolumeUnshared(); 1293a28056b38275003895ff5d9576681aca01544822Mike Lockwood if (--mUmsSharingCount == 0 && mSavedDirtyRatio != -1) { 1294a28056b38275003895ff5d9576681aca01544822Mike Lockwood FILE* fp; 1295a28056b38275003895ff5d9576681aca01544822Mike Lockwood if ((fp = fopen("/proc/sys/vm/dirty_ratio", "r+"))) { 1296a28056b38275003895ff5d9576681aca01544822Mike Lockwood fprintf(fp, "%d\n", mSavedDirtyRatio); 1297a28056b38275003895ff5d9576681aca01544822Mike Lockwood fclose(fp); 1298a28056b38275003895ff5d9576681aca01544822Mike Lockwood } else { 1299a28056b38275003895ff5d9576681aca01544822Mike Lockwood SLOGE("Failed to open /proc/sys/vm/dirty_ratio (%s)", strerror(errno)); 1300a28056b38275003895ff5d9576681aca01544822Mike Lockwood } 1301a28056b38275003895ff5d9576681aca01544822Mike Lockwood mSavedDirtyRatio = -1; 1302a28056b38275003895ff5d9576681aca01544822Mike Lockwood } 1303a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 130449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 130549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 13063b17005083be230509480ea65ae67c237142fadaKen Sumrallextern "C" int vold_disableVol(const char *label) { 130729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall VolumeManager *vm = VolumeManager::Instance(); 13083b17005083be230509480ea65ae67c237142fadaKen Sumrall vm->disableVolumeManager(); 13093b17005083be230509480ea65ae67c237142fadaKen Sumrall vm->unshareVolume(label, "ums"); 13100b8b59719357fb80c330442787f7d5b1e332263bKen Sumrall return vm->unmountVolume(label, true, false); 131129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall} 131229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 131329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrallextern "C" int vold_getNumDirectVolumes(void) { 131429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall VolumeManager *vm = VolumeManager::Instance(); 131529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall return vm->getNumDirectVolumes(); 131629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall} 131729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 131829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrallint VolumeManager::getNumDirectVolumes(void) { 131929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall VolumeCollection::iterator i; 132029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall int n=0; 132129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 132229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 132329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall if ((*i)->getShareDevice() != (dev_t)0) { 132429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall n++; 132529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall } 132629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall } 132729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall return n; 132829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall} 132929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 133029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrallextern "C" int vold_getDirectVolumeList(struct volume_info *vol_list) { 133129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall VolumeManager *vm = VolumeManager::Instance(); 133229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall return vm->getDirectVolumeList(vol_list); 133329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall} 133429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 133529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrallint VolumeManager::getDirectVolumeList(struct volume_info *vol_list) { 133629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall VolumeCollection::iterator i; 133729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall int n=0; 133829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall dev_t d; 133929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 134029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 134129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall if ((d=(*i)->getShareDevice()) != (dev_t)0) { 134229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall (*i)->getVolInfo(&vol_list[n]); 134329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall snprintf(vol_list[n].blk_dev, sizeof(vol_list[n].blk_dev), 134429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall "/dev/block/vold/%d:%d",MAJOR(d), MINOR(d)); 134529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall n++; 134629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall } 134729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall } 134829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 134929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall return 0; 135029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall} 135129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 13520b8b59719357fb80c330442787f7d5b1e332263bKen Sumrallint VolumeManager::unmountVolume(const char *label, bool force, bool revert) { 135349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat Volume *v = lookupVolume(label); 135449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 135549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (!v) { 135649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = ENOENT; 135749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 135849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 135949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 1360a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (v->getState() == Volume::State_NoMedia) { 1361a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 1362a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 1363a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 1364a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 136549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat if (v->getState() != Volume::State_Mounted) { 136697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Attempt to unmount volume which isn't mounted (%d)\n", 1367a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat v->getState()); 136849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat errno = EBUSY; 1369319b1043bbbd410aa2d572d88b5936f26072d026Ken Sumrall return UNMOUNT_NOT_MOUNTED_ERR; 137049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 137149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 13721a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat cleanupAsec(v, force); 137388705166ab82057090a070c6d4200c3d9db76f11San Mehat 13740b8b59719357fb80c330442787f7d5b1e332263bKen Sumrall return v->unmountVol(force, revert); 137549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 137649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 1377425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrallextern "C" int vold_unmountAllAsecs(void) { 1378425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall int rc; 1379425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall 1380425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall VolumeManager *vm = VolumeManager::Instance(); 1381425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall rc = vm->unmountAllAsecsInDir(Volume::SEC_ASECDIR_EXT); 1382425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall if (vm->unmountAllAsecsInDir(Volume::SEC_ASECDIR_INT)) { 1383425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall rc = -1; 1384425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall } 1385425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall return rc; 1386425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall} 1387425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall 1388425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall#define ID_BUF_LEN 256 1389425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall#define ASEC_SUFFIX ".asec" 1390425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall#define ASEC_SUFFIX_LEN (sizeof(ASEC_SUFFIX) - 1) 1391425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrallint VolumeManager::unmountAllAsecsInDir(const char *directory) { 1392425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall DIR *d = opendir(directory); 1393425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall int rc = 0; 1394425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall 1395425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall if (!d) { 1396425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall SLOGE("Could not open asec dir %s", directory); 1397425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall return -1; 1398425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall } 1399425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall 1400425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall size_t dirent_len = offsetof(struct dirent, d_name) + 1401425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall pathconf(directory, _PC_NAME_MAX) + 1; 1402425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall 1403425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall struct dirent *dent = (struct dirent *) malloc(dirent_len); 1404425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall if (dent == NULL) { 1405425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall SLOGE("Failed to allocate memory for asec dir"); 1406425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall return -1; 1407425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall } 1408425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall 1409425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall struct dirent *result; 1410425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall while (!readdir_r(d, dent, &result) && result != NULL) { 1411425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall if (dent->d_name[0] == '.') 1412425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall continue; 1413425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall if (dent->d_type != DT_REG) 1414425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall continue; 1415425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall size_t name_len = strlen(dent->d_name); 1416425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall if (name_len > 5 && name_len < (ID_BUF_LEN + ASEC_SUFFIX_LEN - 1) && 1417425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall !strcmp(&dent->d_name[name_len - 5], ASEC_SUFFIX)) { 1418425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall char id[ID_BUF_LEN]; 1419425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall strlcpy(id, dent->d_name, name_len - 4); 1420425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall if (unmountAsec(id, true)) { 1421425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall /* Register the error, but try to unmount more asecs */ 1422425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall rc = -1; 1423425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall } 1424425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall } 1425425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall } 1426425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall closedir(d); 1427425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall 1428425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall free(dent); 1429425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall 1430425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall return rc; 1431425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall} 1432425524dba1552ab3d2ad39e205e65d0a2af997f2Ken Sumrall 1433a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat/* 1434a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat * Looks up a volume by it's label or mount-point 1435a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat */ 143649e2bce5b74129c26a35e25d4693cbfe98c4688eSan MehatVolume *VolumeManager::lookupVolume(const char *label) { 143749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat VolumeCollection::iterator i; 143849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 143949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat for (i = mVolumes->begin(); i != mVolumes->end(); ++i) { 1440a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (label[0] == '/') { 1441a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(label, (*i)->getMountpoint())) 1442a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return (*i); 1443a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else { 1444a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(label, (*i)->getLabel())) 1445a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return (*i); 1446a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 144749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 144849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return NULL; 144949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat} 1450a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 1451a19b250bd273455933ca3502cf2c2e0a803aff77San Mehatbool VolumeManager::isMountpointMounted(const char *mp) 1452a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat{ 1453a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char device[256]; 1454a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char mount_path[256]; 1455a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char rest[256]; 1456a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat FILE *fp; 1457a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat char line[1024]; 1458a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 1459a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!(fp = fopen("/proc/mounts", "r"))) { 146097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Error opening /proc/mounts (%s)", strerror(errno)); 1461a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return false; 1462a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 1463a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 1464a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat while(fgets(line, sizeof(line), fp)) { 1465a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat line[strlen(line)-1] = '\0'; 1466a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat sscanf(line, "%255s %255s %255s\n", device, mount_path, rest); 1467a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat if (!strcmp(mount_path, mp)) { 1468a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat fclose(fp); 1469a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return true; 1470a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 1471a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat } 1472a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 1473a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat fclose(fp); 1474a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat return false; 1475a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat} 1476a19b250bd273455933ca3502cf2c2e0a803aff77San Mehat 14771a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehatint VolumeManager::cleanupAsec(Volume *v, bool force) { 147893ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root int rc = unmountAllAsecsInDir(Volume::SEC_ASECDIR_EXT); 147993ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root 148093ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root AsecIdCollection toUnmount; 148193ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root // Find the remaining OBB files that are on external storage. 148293ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root for (AsecIdCollection::iterator it = mActiveContainers->begin(); it != mActiveContainers->end(); 148393ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root ++it) { 1484cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root ContainerData* cd = *it; 148593ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root 1486cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root if (cd->type == ASEC) { 148793ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root // nothing 1488cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root } else if (cd->type == OBB) { 148993ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root if (v == getVolumeForFile(cd->id)) { 149093ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root toUnmount.push_back(cd); 1491cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root } 1492cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root } else { 1493cbacf78eff70bd43bb899e164ec2ab409bc0904cKenny Root SLOGE("Unknown container type %d!", cd->type); 14941a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat } 14951a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat } 149693ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root 149793ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root for (AsecIdCollection::iterator it = toUnmount.begin(); it != toUnmount.end(); ++it) { 149893ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root ContainerData *cd = *it; 149993ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root SLOGI("Unmounting ASEC %s (dependant on %s)", cd->id, v->getMountpoint()); 150093ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root if (unmountObb(cd->id, force)) { 150193ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root SLOGE("Failed to unmount OBB %s (%s)", cd->id, strerror(errno)); 150293ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root rc = -1; 150393ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root } 150493ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root } 150593ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root 150693ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root return rc; 150793ecb38daded7583a4a61f4f22519bb7a8a8c154Kenny Root 15081a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat} 15091a06edaf4db4e9c520624bcc06e0e13ee470d90eSan Mehat 1510