Volume.cpp revision 29d8da8cefa99e436c13295d4c9bad060ca18a6d
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 1749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat#include <stdlib.h> 18f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <string.h> 1949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat#include <dirent.h> 2049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat#include <errno.h> 2149e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat#include <fcntl.h> 2249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 2349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat#include <sys/types.h> 2449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat#include <sys/stat.h> 2549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat#include <sys/types.h> 2649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat#include <sys/mman.h> 27a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include <sys/mount.h> 2829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall#include <sys/param.h> 29a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 30a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include <linux/kdev_t.h> 3137dcda68d334f70e1f7f69a9817def65fe3ee717Olivier Bailly#include <linux/fs.h> 32a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 33a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include <cutils/properties.h> 34a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 352a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat#include <diskconfig/diskconfig.h> 36f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 379092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood#include <private/android_filesystem_config.h> 389092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood 39f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#define LOG_TAG "Vold" 40f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 41f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include <cutils/log.h> 42f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 43f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat#include "Volume.h" 44a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include "VolumeManager.h" 45a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat#include "ResponseCode.h" 46bf04185c88161f13118b9975cdff7967d49a4fa0San Mehat#include "Fat.h" 47586536c60b773e3517531ad8a6cb0de6722c67fcSan Mehat#include "Process.h" 4829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall#include "cryptfs.h" 49f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 50a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatextern "C" void dos_partition_dec(void const *pp, struct dos_partition *d); 51a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatextern "C" void dos_partition_enc(void *pp, struct dos_partition *d); 5249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 533bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 543bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat/* 553bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Secure directory - stuff that only root can see 563bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 573bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatconst char *Volume::SECDIR = "/mnt/secure"; 583bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 593bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat/* 603bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Secure staging directory - where media is mounted for preparation 613bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 623bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatconst char *Volume::SEC_STGDIR = "/mnt/secure/staging"; 633bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 643bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat/* 653bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Path to the directory on the media which contains publicly accessable 663bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * asec imagefiles. This path will be obscured before the mount is 673bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * exposed to non priviledged users. 683bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 6952c2ccb6d25b94b96685efd4803226727710fbaeSan Mehatconst char *Volume::SEC_STG_SECIMGDIR = "/mnt/secure/staging/.android_secure"; 703bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 713bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat/* 723bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Path to where *only* root can access asec imagefiles 733bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 743bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatconst char *Volume::SEC_ASECDIR = "/mnt/secure/asec"; 753bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 763bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat/* 773bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Path to where secure containers are mounted 783bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 793bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatconst char *Volume::ASECDIR = "/mnt/asec"; 803bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 81fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root/* 82508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Root * Path to where OBBs are mounted 83fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root */ 84508c0e1605b795bbb51cb47d955b89f3df26ca94Kenny Rootconst char *Volume::LOOPDIR = "/mnt/obb"; 85fb7c4d5a8a1031cf0e493ff182dcf458e5fe8c77Kenny Root 86a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatstatic const char *stateToStr(int state) { 87a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (state == Volume::State_Init) 88a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Initializing"; 89a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else if (state == Volume::State_NoMedia) 90a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "No-Media"; 91a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else if (state == Volume::State_Idle) 92a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Idle-Unmounted"; 93a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else if (state == Volume::State_Pending) 94a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Pending"; 95a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else if (state == Volume::State_Mounted) 96a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Mounted"; 97a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else if (state == Volume::State_Unmounting) 98a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Unmounting"; 99a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else if (state == Volume::State_Checking) 100a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Checking"; 101a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else if (state == Volume::State_Formatting) 102a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Formatting"; 103a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else if (state == Volume::State_Shared) 104a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Shared-Unmounted"; 105a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else if (state == Volume::State_SharedMnt) 106a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Shared-Mounted"; 107a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat else 108a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return "Unknown-Error"; 109a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 11049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 111a2677e4ad01f250b0765f04adf0acfa6627efc98San MehatVolume::Volume(VolumeManager *vm, const char *label, const char *mount_point) { 112a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mVm = vm; 113d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat mDebug = false; 114f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mLabel = strdup(label); 115f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mMountpoint = strdup(mount_point); 116f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mState = Volume::State_Init; 117a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mCurrentlyMountedKdev = -1; 118a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood mPartIdx = -1; 119f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 120f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 121f1b736bc5605e92e917ab27f5abf3ba839be2270San MehatVolume::~Volume() { 122f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat free(mLabel); 123f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat free(mMountpoint); 124f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 125f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 126cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehatvoid Volume::protectFromAutorunStupidity() { 127cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat char filename[255]; 128cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat 129cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat snprintf(filename, sizeof(filename), "%s/autorun.inf", SEC_STGDIR); 130cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat if (!access(filename, F_OK)) { 13197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Volume contains an autorun.inf! - removing"); 132cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat /* 133cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat * Ensure the filename is all lower-case so 134cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat * the process killer can find the inode. 135cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat * Probably being paranoid here but meh. 136cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat */ 137cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat rename(filename, filename); 138cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat Process::killProcessesWithOpenFiles(filename, 2); 139cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat if (unlink(filename)) { 14097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to remove %s (%s)", filename, strerror(errno)); 141cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat } 142cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat } 143cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat} 144cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat 145d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehatvoid Volume::setDebug(bool enable) { 146d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat mDebug = enable; 147d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat} 148d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 149a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatdev_t Volume::getDiskDevice() { 150a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return MKDEV(0, 0); 151a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat}; 152a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 1532dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwooddev_t Volume::getShareDevice() { 1542dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood return getDiskDevice(); 1552dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood} 1562dfe297ec47559dbe2297a72bea71cf515c03797Mike Lockwood 157a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid Volume::handleVolumeShared() { 158a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 159a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 160a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatvoid Volume::handleVolumeUnshared() { 161a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 162a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 163fd7f5875129adfe2845f4f3fffb17db3a89eea25San Mehatint Volume::handleBlockEvent(NetlinkEvent *evt) { 164f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat errno = ENOSYS; 165f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat return -1; 166f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 167f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat 168f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehatvoid Volume::setState(int state) { 169a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char msg[255]; 170a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int oldState = mState; 171a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 172a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (oldState == state) { 17397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Duplicate state (%d)\n", state); 174a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return; 175a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 176a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 177f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat mState = state; 178a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 17997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Volume %s state changing %d (%s) -> %d (%s)", mLabel, 180a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat oldState, stateToStr(oldState), mState, stateToStr(mState)); 181a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(msg, sizeof(msg), 182a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat "Volume %s %s state changed from %d (%s) to %d (%s)", getLabel(), 183a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getMountpoint(), oldState, stateToStr(oldState), mState, 184a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat stateToStr(mState)); 185a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 186a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeStateChange, 187a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat msg, false); 188f1b736bc5605e92e917ab27f5abf3ba839be2270San Mehat} 18949e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 190dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehatint Volume::createDeviceNode(const char *path, int major, int minor) { 191dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat mode_t mode = 0660 | S_IFBLK; 192dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat dev_t dev = (major << 8) | minor; 193dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat if (mknod(path, mode, dev) < 0) { 194dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat if (errno != EEXIST) { 195dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat return -1; 196dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat } 197dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat } 198dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat return 0; 199dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat} 200dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 201a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint Volume::formatVol() { 20249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 203a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (getState() == Volume::State_NoMedia) { 204a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 20549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 206a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else if (getState() != Volume::State_Idle) { 207a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EBUSY; 208a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 209a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 210a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 211a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (isMountpointMounted(getMountpoint())) { 21297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Volume is idle but appears to be mounted - fixing"); 213a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_Mounted); 214a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // mCurrentlyMountedKdev = XXX 215a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EBUSY; 216a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 217a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 218a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 219a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood bool formatEntireDevice = (mPartIdx == -1); 220a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char devicePath[255]; 221a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat dev_t diskNode = getDiskDevice(); 222a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood dev_t partNode = MKDEV(MAJOR(diskNode), (formatEntireDevice ? 1 : mPartIdx)); 223a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 2242a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat setState(Volume::State_Formatting); 225a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 22664382de1f93b84ca59f607da4b4fdbd77f1af67dChih-Wei Huang int ret = -1; 227a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood // Only initialize the MBR if we are formatting the entire device 228a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood if (formatEntireDevice) { 229a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood sprintf(devicePath, "/dev/block/vold/%d:%d", 230a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood MAJOR(diskNode), MINOR(diskNode)); 231a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood 232a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood if (initializeMbr(devicePath)) { 233a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood SLOGE("Failed to initialize MBR (%s)", strerror(errno)); 234a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood goto err; 235a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood } 236a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 237a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 238a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sprintf(devicePath, "/dev/block/vold/%d:%d", 239a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat MAJOR(partNode), MINOR(partNode)); 240a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 241a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood if (mDebug) { 242a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood SLOGI("Formatting volume %s (%s)", getLabel(), devicePath); 243a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood } 244a4886f1f8ed72e24a302a91a0ab18bc54b6f585eMike Lockwood 245fcf24fe62f98c5d44431aa575555569c2c7a29b0San Mehat if (Fat::format(devicePath, 0)) { 24697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to format (%s)", strerror(errno)); 247a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat goto err; 248a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 249a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 25064382de1f93b84ca59f607da4b4fdbd77f1af67dChih-Wei Huang ret = 0; 25164382de1f93b84ca59f607da4b4fdbd77f1af67dChih-Wei Huang 252a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehaterr: 25364382de1f93b84ca59f607da4b4fdbd77f1af67dChih-Wei Huang setState(Volume::State_Idle); 25464382de1f93b84ca59f607da4b4fdbd77f1af67dChih-Wei Huang return ret; 255a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 256a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 257a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatbool Volume::isMountpointMounted(const char *path) { 258a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char device[256]; 259a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char mount_path[256]; 260a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char rest[256]; 261a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat FILE *fp; 262a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char line[1024]; 263a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 264a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!(fp = fopen("/proc/mounts", "r"))) { 26597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Error opening /proc/mounts (%s)", strerror(errno)); 266a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return false; 26749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 26849e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 269a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat while(fgets(line, sizeof(line), fp)) { 270a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat line[strlen(line)-1] = '\0'; 271a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sscanf(line, "%255s %255s %255s\n", device, mount_path, rest); 272a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!strcmp(mount_path, path)) { 273a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat fclose(fp); 274a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return true; 275a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 276dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 277a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 278dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 279a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat fclose(fp); 280a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return false; 281a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 282a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 283a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint Volume::mountVol() { 284a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat dev_t deviceNodes[4]; 285a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat int n, i, rc = 0; 286a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char errmsg[255]; 287850949485b390c0928ea2f4a7db47be73bebb718Mike Lockwood const char* externalStorage = getenv("EXTERNAL_STORAGE"); 288850949485b390c0928ea2f4a7db47be73bebb718Mike Lockwood bool primaryStorage = externalStorage && !strcmp(getMountpoint(), externalStorage); 28929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall char decrypt_state[PROPERTY_VALUE_MAX]; 29029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall char crypto_state[PROPERTY_VALUE_MAX]; 29129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall char encrypt_progress[PROPERTY_VALUE_MAX]; 29229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall int flags; 29329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 29429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall property_get("vold.decrypt", decrypt_state, ""); 29529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall property_get("vold.encrypt_progress", encrypt_progress, ""); 29629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 29729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall /* Don't try to mount the volumes if we have not yet entered the disk password 29829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall * or are in the process of encrypting. 29929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall */ 30029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall if ((getState() == Volume::State_NoMedia) || 30129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall ((!strcmp(decrypt_state, "1") || encrypt_progress[0]) && primaryStorage)) { 302a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat snprintf(errmsg, sizeof(errmsg), 303a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat "Volume %s %s mount failed - no media", 304a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat getLabel(), getMountpoint()); 305a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat mVm->getBroadcaster()->sendBroadcast( 306a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat ResponseCode::VolumeMountFailedNoMedia, 307a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errmsg, false); 308a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = ENODEV; 309a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 310a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } else if (getState() != Volume::State_Idle) { 311a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = EBUSY; 31249e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 31349e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 31449e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 315a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (isMountpointMounted(getMountpoint())) { 31697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Volume is idle but appears to be mounted - fixing"); 317a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_Mounted); 318a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat // mCurrentlyMountedKdev = XXX 319a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return 0; 320a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 321a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 322a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat n = getDeviceNodes((dev_t *) &deviceNodes, 4); 323a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (!n) { 32497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to get device nodes (%s)\n", strerror(errno)); 32549e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat return -1; 32649e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat } 32749e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat 32829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall /* If we're running encrypted, and the volume is marked as encryptable and nonremovable, 32929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall * and vold is asking to mount the primaryStorage device, then we need to decrypt 33029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall * that partition, and update the volume object to point to it's new decrypted 33129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall * block device 33229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall */ 33329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall property_get("ro.crypto.state", crypto_state, ""); 33429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall flags = getFlags(); 33529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall if (primaryStorage && 33629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall ((flags & (VOL_NONREMOVABLE | VOL_ENCRYPTABLE))==(VOL_NONREMOVABLE | VOL_ENCRYPTABLE)) && 33729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall !strcmp(crypto_state, "encrypted") && !isDecrypted()) { 33829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall char new_sys_path[MAXPATHLEN]; 33929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall char nodepath[256]; 34029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall int new_major, new_minor; 34129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 34229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall if (n != 1) { 34329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall /* We only expect one device node returned when mounting encryptable volumes */ 34429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall SLOGE("Too many device nodes returned when mounting %d\n", getMountpoint()); 34529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall return -1; 34629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall } 34729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 34829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall if (cryptfs_setup_volume(getLabel(), MAJOR(deviceNodes[0]), MINOR(deviceNodes[0]), 34929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall new_sys_path, sizeof(new_sys_path), 35029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall &new_major, &new_minor)) { 35129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall SLOGE("Cannot setup encryption mapping for %d\n", getMountpoint()); 35229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall return -1; 35329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall } 35429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall /* We now have the new sysfs path for the decrypted block device, and the 35529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall * majore and minor numbers for it. So, create the device, update the 35629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall * path to the new sysfs path, and continue. 35729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall */ 35829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall snprintf(nodepath, 35929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall sizeof(nodepath), "/dev/block/vold/%d:%d", 36029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall new_major, new_minor); 36129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall if (createDeviceNode(nodepath, new_major, new_minor)) { 36229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall SLOGE("Error making device node '%s' (%s)", nodepath, 36329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall strerror(errno)); 36429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall } 36529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 36629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall // Todo: Either create sys filename from nodepath, or pass in bogus path so 36729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall // vold ignores state changes on this internal device. 36829d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall updateDeviceInfo(nodepath, new_major, new_minor); 36929d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 37029d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall /* Get the device nodes again, because they just changed */ 37129d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall n = getDeviceNodes((dev_t *) &deviceNodes, 4); 37229d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall if (!n) { 37329d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall SLOGE("Failed to get device nodes (%s)\n", strerror(errno)); 37429d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall return -1; 37529d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall } 37629d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall } 37729d8da8cefa99e436c13295d4c9bad060ca18a6dKen Sumrall 378a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat for (i = 0; i < n; i++) { 379a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat char devicePath[255]; 380dd9b8e92aaf330b48ddb40a7380588ef92b53de6San Mehat 381a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat sprintf(devicePath, "/dev/block/vold/%d:%d", MAJOR(deviceNodes[i]), 382a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat MINOR(deviceNodes[i])); 383a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 38497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGI("%s being considered for volume %s\n", devicePath, getLabel()); 385a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 386a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = 0; 387bf04185c88161f13118b9975cdff7967d49a4fa0San Mehat setState(Volume::State_Checking); 388bf04185c88161f13118b9975cdff7967d49a4fa0San Mehat 3893bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (Fat::check(devicePath)) { 390a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat if (errno == ENODATA) { 39197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("%s does not contain a FAT filesystem\n", devicePath); 392a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat continue; 393a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 394eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat errno = EIO; 395eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat /* Badness - abort the mount */ 39697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("%s failed FS checks (%s)", devicePath, strerror(errno)); 397eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat setState(Volume::State_Idle); 398eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat return -1; 399a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 400a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 4013bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 4023bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Mount the device on our internal staging mountpoint so we can 4033bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * muck with it before exposing it to non priviledged users. 4043bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 405a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat errno = 0; 4069092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood int gid; 4079092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood 408850949485b390c0928ea2f4a7db47be73bebb718Mike Lockwood if (primaryStorage) { 4099092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood // Special case the primary SD card. 4109092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood // For this we grant write access to the SDCARD_RW group. 4119092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood gid = AID_SDCARD_RW; 4129092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood } else { 4139092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood // For secondary external storage we keep things locked up. 4149092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood gid = AID_MEDIA_RW; 4159092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood } 416a3e06084564c86ff618c40f185f3676b8b629b94Kenny Root if (Fat::doMount(devicePath, "/mnt/secure/staging", false, false, false, 4179092b1dbd31406f6939045fbef70a297b8dbeb62Mike Lockwood AID_SYSTEM, gid, 0702, true)) { 41897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("%s failed to mount via VFAT (%s)\n", devicePath, strerror(errno)); 4193bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat continue; 420a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 421a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 42297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGI("Device %s, target %s mounted @ /mnt/secure/staging", devicePath, getMountpoint()); 4233bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 424cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat protectFromAutorunStupidity(); 425cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat 426850949485b390c0928ea2f4a7db47be73bebb718Mike Lockwood // only create android_secure on primary storage 427850949485b390c0928ea2f4a7db47be73bebb718Mike Lockwood if (primaryStorage && createBindMounts()) { 42897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to create bindmounts (%s)", strerror(errno)); 4293bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat umount("/mnt/secure/staging"); 4303bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat setState(Volume::State_Idle); 4313bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 4323bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 4333bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 4343bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 4353bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Now that the bindmount trickery is done, atomically move the 4363bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * whole subtree to expose it to non priviledged users. 4373bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 4383bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (doMoveMount("/mnt/secure/staging", getMountpoint(), false)) { 43997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to move mount (%s)", strerror(errno)); 4403bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat umount("/mnt/secure/staging"); 4413bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat setState(Volume::State_Idle); 4423bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 4433bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 4443bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat setState(Volume::State_Mounted); 4453bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat mCurrentlyMountedKdev = deviceNodes[i]; 4463bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return 0; 447a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 448a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 44997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Volume %s found no suitable devices for mounting :(\n", getLabel()); 45049e2bce5b74129c26a35e25d4693cbfe98c4688eSan Mehat setState(Volume::State_Idle); 451a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 452eba65e9d438a05f1c5dfd0f8d31bc463a5d08eeeSan Mehat return -1; 453a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 454a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 4553bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatint Volume::createBindMounts() { 4563bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat unsigned long flags; 4573bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 4583bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 45952c2ccb6d25b94b96685efd4803226727710fbaeSan Mehat * Rename old /android_secure -> /.android_secure 46052c2ccb6d25b94b96685efd4803226727710fbaeSan Mehat */ 46152c2ccb6d25b94b96685efd4803226727710fbaeSan Mehat if (!access("/mnt/secure/staging/android_secure", R_OK | X_OK) && 46252c2ccb6d25b94b96685efd4803226727710fbaeSan Mehat access(SEC_STG_SECIMGDIR, R_OK | X_OK)) { 46352c2ccb6d25b94b96685efd4803226727710fbaeSan Mehat if (rename("/mnt/secure/staging/android_secure", SEC_STG_SECIMGDIR)) { 46497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to rename legacy asec dir (%s)", strerror(errno)); 46552c2ccb6d25b94b96685efd4803226727710fbaeSan Mehat } 46652c2ccb6d25b94b96685efd4803226727710fbaeSan Mehat } 46752c2ccb6d25b94b96685efd4803226727710fbaeSan Mehat 46852c2ccb6d25b94b96685efd4803226727710fbaeSan Mehat /* 4693bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Ensure that /android_secure exists and is a directory 4703bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 4713bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (access(SEC_STG_SECIMGDIR, R_OK | X_OK)) { 4723bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (errno == ENOENT) { 4733bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (mkdir(SEC_STG_SECIMGDIR, 0777)) { 47497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to create %s (%s)", SEC_STG_SECIMGDIR, strerror(errno)); 4753bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 4763bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 4773bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } else { 47897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to access %s (%s)", SEC_STG_SECIMGDIR, strerror(errno)); 4793bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 4803bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 4813bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } else { 4823bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat struct stat sbuf; 483a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 4843bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (stat(SEC_STG_SECIMGDIR, &sbuf)) { 48597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to stat %s (%s)", SEC_STG_SECIMGDIR, strerror(errno)); 4863bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 4873bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 4883bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (!S_ISDIR(sbuf.st_mode)) { 48997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("%s is not a directory", SEC_STG_SECIMGDIR); 4903bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat errno = ENOTDIR; 4913bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 4923bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 4933bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 4943bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 4953bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 4963bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Bind mount /mnt/secure/staging/android_secure -> /mnt/secure/asec so we'll 4973bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * have a root only accessable mountpoint for it. 4983bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 4993bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (mount(SEC_STG_SECIMGDIR, SEC_ASECDIR, "", MS_BIND, NULL)) { 50097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to bind mount points %s -> %s (%s)", 5013bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat SEC_STG_SECIMGDIR, SEC_ASECDIR, strerror(errno)); 502a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 503a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 504a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 5053bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 5063bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Mount a read-only, zero-sized tmpfs on <mountpoint>/android_secure to 5073bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * obscure the underlying directory from everybody - sneaky eh? ;) 5083bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 5093bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (mount("tmpfs", SEC_STG_SECIMGDIR, "tmpfs", MS_RDONLY, "size=0,mode=000,uid=0,gid=0")) { 51097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to obscure %s (%s)", SEC_STG_SECIMGDIR, strerror(errno)); 5113bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat umount("/mnt/asec_secure"); 5123bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 5133bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 5143bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 5153bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return 0; 5163bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat} 5173bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 5183bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatint Volume::doMoveMount(const char *src, const char *dst, bool force) { 5193bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat unsigned int flags = MS_MOVE; 5203bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat int retries = 5; 5213bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 5223bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat while(retries--) { 5233bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (!mount(src, dst, "", flags, NULL)) { 524d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 52597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Moved mount %s -> %s sucessfully", src, dst); 526d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 5273bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return 0; 5283bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } else if (errno != EBUSY) { 52997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to move mount %s -> %s (%s)", src, dst, strerror(errno)); 5303bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 5313bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 5323bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat int action = 0; 5333bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 5343bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (force) { 5353bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (retries == 1) { 5363bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat action = 2; // SIGKILL 5373bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } else if (retries == 2) { 5383bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat action = 1; // SIGHUP 5393bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 540a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 54197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Failed to move %s -> %s (%s, retries %d, action %d)", 5423bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat src, dst, strerror(errno), retries, action); 5433bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat Process::killProcessesWithOpenFiles(src, action); 5443bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat usleep(1000*250); 5453bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 546a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 5473bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat errno = EBUSY; 54897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Giving up on move %s -> %s (%s)", src, dst, strerror(errno)); 5493bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 5503bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat} 5513bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 5523bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatint Volume::doUnmount(const char *path, bool force) { 5533bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat int retries = 10; 5543bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 555d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat if (mDebug) { 55697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGD("Unmounting {%s}, force = %d", path, force); 557d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat } 558d9a4e358614a0c5f60cc76c0636ee4bb02004a32San Mehat 5593bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat while (retries--) { 5603bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (!umount(path) || errno == EINVAL || errno == ENOENT) { 56197ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGI("%s sucessfully unmounted", path); 5623bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return 0; 5633bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 5648c940ef7dbd423cadc92982b44a65ed1014389e2San Mehat 5654ba8948dc16463053e21cda5744f519a555080d0San Mehat int action = 0; 5668c940ef7dbd423cadc92982b44a65ed1014389e2San Mehat 5674ba8948dc16463053e21cda5744f519a555080d0San Mehat if (force) { 5683bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (retries == 1) { 5694ba8948dc16463053e21cda5744f519a555080d0San Mehat action = 2; // SIGKILL 5703bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } else if (retries == 2) { 5714ba8948dc16463053e21cda5744f519a555080d0San Mehat action = 1; // SIGHUP 5724ba8948dc16463053e21cda5744f519a555080d0San Mehat } 5734ba8948dc16463053e21cda5744f519a555080d0San Mehat } 5748c940ef7dbd423cadc92982b44a65ed1014389e2San Mehat 57597ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGW("Failed to unmount %s (%s, retries %d, action %d)", 5763bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat path, strerror(errno), retries, action); 5773bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 5783bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat Process::killProcessesWithOpenFiles(path, action); 5794ba8948dc16463053e21cda5744f519a555080d0San Mehat usleep(1000*1000); 580a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 5813bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat errno = EBUSY; 58297ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Giving up on unmount %s (%s)", path, strerror(errno)); 5833bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 5843bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat} 585a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 5863bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatint Volume::unmountVol(bool force) { 5873bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat int i, rc; 5883bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 5893bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (getState() != Volume::State_Mounted) { 59097ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Volume %s unmount request when not mounted", getLabel()); 5913bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat errno = EINVAL; 5923bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 5933bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 5943bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 5953bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat setState(Volume::State_Unmounting); 5963bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat usleep(1000 * 1000); // Give the framework some time to react 5973bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 5983bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 5993bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * First move the mountpoint back to our internal staging point 6003bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * so nobody else can muck with it while we work. 6013bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 6023bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (doMoveMount(getMountpoint(), SEC_STGDIR, force)) { 60397ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to move mount %s => %s (%s)", getMountpoint(), SEC_STGDIR, strerror(errno)); 6043bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat setState(Volume::State_Mounted); 6053bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 6063bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 6073bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 608cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat protectFromAutorunStupidity(); 609cb4dac8a5243f6673b0590019b5b28a01bd3e343San Mehat 6103bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 6113bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Unmount the tmpfs which was obscuring the asec image directory 6123bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * from non root users 6133bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 6143bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 6153bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (doUnmount(Volume::SEC_STG_SECIMGDIR, force)) { 61697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to unmount tmpfs on %s (%s)", SEC_STG_SECIMGDIR, strerror(errno)); 6173bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat goto fail_republish; 6183bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 6193bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 6203bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 6213bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Remove the bindmount we were using to keep a reference to 6223bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * the previously obscured directory. 6233bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 6243bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 6253bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (doUnmount(Volume::SEC_ASECDIR, force)) { 62697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to remove bindmount on %s (%s)", SEC_ASECDIR, strerror(errno)); 6273bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat goto fail_remount_tmpfs; 6283bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 6293bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 6303bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 6313bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Finally, unmount the actual block device from the staging dir 6323bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 6333bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (doUnmount(Volume::SEC_STGDIR, force)) { 63497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to unmount %s (%s)", SEC_STGDIR, strerror(errno)); 6353bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat goto fail_recreate_bindmount; 6363bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 6373bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 63897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGI("%s unmounted sucessfully", getMountpoint()); 6393bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 6403bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat setState(Volume::State_Idle); 6413bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat mCurrentlyMountedKdev = -1; 6423bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return 0; 6433bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 6443bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat /* 6453bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat * Failure handling - try to restore everything back the way it was 6463bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat */ 6473bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatfail_recreate_bindmount: 6483bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (mount(SEC_STG_SECIMGDIR, SEC_ASECDIR, "", MS_BIND, NULL)) { 64997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to restore bindmount after failure! - Storage will appear offline!"); 6503bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat goto out_nomedia; 6513bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 6523bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatfail_remount_tmpfs: 6533bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (mount("tmpfs", SEC_STG_SECIMGDIR, "tmpfs", MS_RDONLY, "size=0,mode=0,uid=0,gid=0")) { 65497ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to restore tmpfs after failure! - Storage will appear offline!"); 6553bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat goto out_nomedia; 6563bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat } 6573bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatfail_republish: 6583bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat if (doMoveMount(SEC_STGDIR, getMountpoint(), force)) { 65997ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to republish mount after failure! - Storage will appear offline!"); 6603bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat goto out_nomedia; 661a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 662a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 663a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat setState(Volume::State_Mounted); 664a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 6653bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat 6663bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehatout_nomedia: 6673bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat setState(Volume::State_NoMedia); 6683bb6020e461e8872e8df0775cba6eb32e06b93ecSan Mehat return -1; 669a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 670a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehatint Volume::initializeMbr(const char *deviceNode) { 6712a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat struct disk_info dinfo; 672a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 6732a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat memset(&dinfo, 0, sizeof(dinfo)); 674a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 6752a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (!(dinfo.part_lst = (struct part_info *) malloc(MAX_NUM_PARTS * sizeof(struct part_info)))) { 67697ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to malloc prt_lst"); 677a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat return -1; 678a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 679a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 6802a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat memset(dinfo.part_lst, 0, MAX_NUM_PARTS * sizeof(struct part_info)); 6812a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat dinfo.device = strdup(deviceNode); 6822a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat dinfo.scheme = PART_SCHEME_MBR; 6832a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat dinfo.sect_size = 512; 6842a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat dinfo.skip_lba = 2048; 6852a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat dinfo.num_lba = 0; 6862a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat dinfo.num_parts = 1; 687a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 6882a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat struct part_info *pinfo = &dinfo.part_lst[0]; 689a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 6902a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat pinfo->name = strdup("android_sdcard"); 6912a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat pinfo->flags |= PART_ACTIVE_FLAG; 6922a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat pinfo->type = PC_PART_TYPE_FAT32; 6932a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat pinfo->len_kb = -1; 694a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 6952a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat int rc = apply_disk_config(&dinfo, 0); 696a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat 6972a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat if (rc) { 69897ac40e4e6f3ed0bd5d6878d7d8d4a54fcaecb76San Mehat SLOGE("Failed to apply disk configuration (%d)", rc); 6992a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat goto out; 700a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat } 7012a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat 7022a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat out: 7032a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat free(pinfo->name); 7042a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat free(dinfo.device); 7052a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat free(dinfo.part_lst); 7062a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat 7072a5b8ce09b8836a8463ef9beaaff865c36ca5e6aSan Mehat return rc; 708a2677e4ad01f250b0765f04adf0acfa6627efc98San Mehat} 709