void DirectVolume::handleDiskRemoved(const char *devpath, NetlinkEvent *evt) {
int major = atoi(evt->findParam("MAJOR"));
int minor = atoi(evt->findParam("MINOR"));
char msg[255];
int state;
if(0 == mDiskNumParts) {
state = getState();
if (state != Volume::State_Mounted && state != Volume::State_Shared) {
SLOGD("Status is %d, skip unmountVol()", getState());
}
else if ((dev_t) MKDEV(major, minor) == mCurrentlyMountedKdev) {
/*
* Yikes, our mounted partition is going away!
*/
snprintf(msg, sizeof(msg), "Volume %s %s bad removal (%d:%d)",
getLabel(), getMountpoint(), major, minor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval,
msg, false);
mVm->waitForAfCleanupAsec(this);
if (Volume::unmountVol(true, false)) {
SLOGE("Failed to unmount volume on bad removal (%s)",
strerror(errno));
// XXX: At this point we're screwed for now
} else {
SLOGD("Crisis averted");
}
} else if (state == Volume::State_Shared) {
/* removed during mass storage */
snprintf(msg, sizeof(msg), "Volume %s bad removal (%d:%d)",
getLabel(), major, minor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval,
msg, false);
if (mVm->unshareVolume(getLabel(), "ums")) {
SLOGE("Failed to unshare volume on bad removal (%s)",
strerror(errno));
} else {
SLOGD("Crisis averted");
}
}
}
SLOGD("Volume %s %s disk %d:%d removed\n", getLabel(), getMountpoint(), major, minor);
if(mVm->getIpoState() == VolumeManager::State_Ipo_Start) {
snprintf(msg, sizeof(msg), "Volume %s %s disk removed (%d:%d)",
getLabel(), getMountpoint(), major, minor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskRemoved,
msg, false);
}
setState(Volume::State_NoMedia);
}
void DirectVolume::handleDiskRemoved(const char *devpath, NetlinkEvent *evt) {
int major = atoi(evt->findParam("MAJOR"));
int minor = atoi(evt->findParam("MINOR"));
char msg[255];
SLOGD("Volume %s %s disk %d:%d removed\n", getLabel(), getMountpoint(), major, minor);
snprintf(msg, sizeof(msg), "Volume %s %s disk removed (%d:%d)",
getLabel(), getMountpoint(), major, minor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskRemoved,
msg, false);
setState(Volume::State_NoMedia);
}
void DirectVolume::handlePartitionRemoved(const char *devpath, NetlinkEvent *evt) {
int major = atoi(evt->findParam("MAJOR"));
int minor = atoi(evt->findParam("MINOR"));
char msg[255];
int state;
SLOGD("Volume %s %s partition %d:%d removed\n", getLabel(), getMountpoint(), major, minor);
/*
* The framework doesn't need to get notified of
* partition removal unless it's mounted. Otherwise
* the removal notification will be sent on the Disk
* itself
*/
state = getState();
if (state != Volume::State_Mounted && state != Volume::State_Shared) {
return;
}
if ((dev_t) MKDEV(major, minor) == mCurrentlyMountedKdev) {
/*
* Yikes, our mounted partition is going away!
*/
snprintf(msg, sizeof(msg), "Volume %s %s bad removal (%d:%d)",
getLabel(), getMountpoint(), major, minor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval,
msg, false);
mVm->waitForAfCleanupAsec(this);
if (Volume::unmountVol(true, false)) {
SLOGE("Failed to unmount volume on bad removal (%s)",
strerror(errno));
// XXX: At this point we're screwed for now
} else {
SLOGD("Crisis averted");
}
} else if (state == Volume::State_Shared) {
/* removed during mass storage */
snprintf(msg, sizeof(msg), "Volume %s bad removal (%d:%d)",
getLabel(), major, minor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval,
msg, false);
if (mVm->unshareVolume(getLabel(), "ums")) {
SLOGE("Failed to unshare volume on bad removal (%s)",
strerror(errno));
} else {
SLOGD("Crisis averted");
}
}
}
void Volume::setState(int state) {
char msg[255];
int oldState = mState;
if (oldState == state) {
SLOGW("Duplicate state (%d)\n", state);
return;
}
if ((oldState == Volume::State_Pending) && (state != Volume::State_Idle)) {
mRetryMount = false;
}
mState = state;
SLOGD("Volume %s state changing %d (%s) -> %d (%s)", mLabel,
oldState, stateToStr(oldState), mState, stateToStr(mState));
snprintf(msg, sizeof(msg),
"Volume %s %s state changed from %d (%s) to %d (%s)", getLabel(),
getMountpoint(), oldState, stateToStr(oldState), mState,
stateToStr(mState));
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeStateChange,
msg, false);
}
int DirectVolume::handleBlockEvent(NetlinkEvent *evt) {
const char *dp = evt->findParam("DEVPATH");
PathCollection::iterator it;
for (it = mPaths->begin(); it != mPaths->end(); ++it) {
if (!strncmp(dp, *it, strlen(*it))) {
/* We can handle this disk */
int action = evt->getAction();
const char *devtype = evt->findParam("DEVTYPE");
if (action == NetlinkEvent::NlActionAdd) {
int major = atoi(evt->findParam("MAJOR"));
int minor = atoi(evt->findParam("MINOR"));
char nodepath[255];
snprintf(nodepath,
sizeof(nodepath), "/dev/block/vold/%d:%d",
major, minor);
if (createDeviceNode(nodepath, major, minor)) {
SLOGE("Error making device node '%s' (%s)", nodepath,
strerror(errno));
}
if (!strcmp(devtype, "disk")) {
handleDiskAdded(dp, evt);
} else {
handlePartitionAdded(dp, evt);
}
/* Send notification iff disk is ready (ie all partitions found) */
if (getState() == Volume::State_Idle) {
char msg[255];
snprintf(msg, sizeof(msg),
"Volume %s %s disk inserted (%d:%d)", getLabel(),
getMountpoint(), mDiskMajor, mDiskMinor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskInserted,
msg, false);
}
} else if (action == NetlinkEvent::NlActionRemove) {
if (!strcmp(devtype, "disk")) {
handleDiskRemoved(dp, evt);
} else {
handlePartitionRemoved(dp, evt);
}
} else if (action == NetlinkEvent::NlActionChange) {
if (!strcmp(devtype, "disk")) {
handleDiskChanged(dp, evt);
} else {
handlePartitionChanged(dp, evt);
}
} else {
SLOGW("Ignoring non add/remove/change event");
}
return 0;
}
}
errno = ENODEV;
return -1;
}
int Volume::formatVol() {
if (getState() == Volume::State_NoMedia) {
errno = ENODEV;
return -1;
} else if (getState() != Volume::State_Idle) {
errno = EBUSY;
return -1;
}
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
setState(Volume::State_Mounted);
// mCurrentlyMountedKdev = XXX
errno = EBUSY;
return -1;
}
bool formatEntireDevice = (mPartIdx == -1);
char devicePath[255];
dev_t diskNode = getDiskDevice();
dev_t partNode = MKDEV(MAJOR(diskNode), (formatEntireDevice ? 1 : mPartIdx));
setState(Volume::State_Formatting);
int ret = -1;
// Only initialize the MBR if we are formatting the entire device
if (formatEntireDevice) {
sprintf(devicePath, "/dev/block/vold/%d:%d",
MAJOR(diskNode), MINOR(diskNode));
if (initializeMbr(devicePath)) {
SLOGE("Failed to initialize MBR (%s)", strerror(errno));
goto err;
}
}
sprintf(devicePath, "/dev/block/vold/%d:%d",
MAJOR(partNode), MINOR(partNode));
if (mDebug) {
SLOGI("Formatting volume %s (%s)", getLabel(), devicePath);
}
if (Fat::format(devicePath, 0)) {
SLOGE("Failed to format (%s)", strerror(errno));
goto err;
}
ret = 0;
err:
setState(Volume::State_Idle);
return ret;
}
void DirectVolume::handleDiskRemoved(const char *devpath, NetlinkEvent *evt) {
int major = atoi(evt->findParam("MAJOR"));
int minor = atoi(evt->findParam("MINOR"));
char msg[255];
bool enabled;
if(first_udisk_major!=-1&&first_udisk_minor!=-1){
if(first_udisk_major == major && first_udisk_minor == minor){
SLOGD("first udisk remove\n");
first_udisk_major = -1;
first_udisk_minor = -1;
}else{
SLOGD("not the first udisk remove,do nothing\n");
return;
}
}
if (mVm->shareEnabled(getLabel(), "ums", &enabled) == 0 && enabled) {
mVm->unshareVolume(getLabel(), "ums");
}
SLOGD("Volume %s %s disk %d:%d removed\n", getLabel(), getMountpoint(), major, minor);
snprintf(msg, sizeof(msg), "Volume %s %s disk removed (%d:%d)",
getLabel(), getMountpoint(), major, minor);
if(!mDiskNumParts){
if (Volume::unmountVol(true, false)) {
SLOGE("Failed to unmount volume on bad removal (%s)",
strerror(errno));
} else {
SLOGD("Crisis averted");
}
}
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskRemoved,
msg, false);
setState(Volume::State_NoMedia);
}
int Volume::formatVol() {
if (getState() == Volume::State_NoMedia) {
errno = ENODEV;
return -1;
} else if (getState() != Volume::State_Idle) {
errno = EBUSY;
return -1;
}
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
setState(Volume::State_Mounted);
// mCurrentlyMountedKdev = XXX
errno = EBUSY;
return -1;
}
char devicePath[255];
dev_t diskNode = getDiskDevice();
dev_t partNode = MKDEV(MAJOR(diskNode), 1); // XXX: Hmmm
sprintf(devicePath, "/dev/block/vold/%d:%d",
MAJOR(diskNode), MINOR(diskNode));
if (mDebug) {
SLOGI("Formatting volume %s (%s)", getLabel(), devicePath);
}
setState(Volume::State_Formatting);
if (initializeMbr(devicePath)) {
SLOGE("Failed to initialize MBR (%s)", strerror(errno));
goto err;
}
sprintf(devicePath, "/dev/block/vold/%d:%d",
MAJOR(partNode), MINOR(partNode));
if (Fat::format(devicePath, 0)) {
SLOGE("Failed to format (%s)", strerror(errno));
goto err;
}
setState(Volume::State_Idle);
return 0;
err:
return -1;
}
void DirectVolume::handleDiskAdded(const char *devpath, NetlinkEvent *evt) {
mDiskMajor = atoi(evt->findParam("MAJOR"));
mDiskMinor = atoi(evt->findParam("MINOR"));
const char *tmp = evt->findParam("NPARTS");
if (tmp) {
mDiskNumParts = atoi(tmp);
} else {
SLOGW("Kernel block uevent missing 'NPARTS'");
mDiskNumParts = 1;
}
if (strcmp(devpath, "/devices/virtual/block/stheno") == 0)
mDiskNumParts = 0;
char msg[255];
int partmask = 0;
int i;
for (i = 1; i <= mDiskNumParts; i++) {
partmask |= (1 << i);
}
mPendingPartMap = partmask;
if (mDiskNumParts == 0) {
#ifdef PARTITION_DEBUG
SLOGD("Dv::diskIns - No partitions - good to go son!");
#endif
setState(Volume::State_Idle);
} else {
#ifdef PARTITION_DEBUG
SLOGD("Dv::diskIns - waiting for %d partitions (mask 0x%x)",
mDiskNumParts, mPendingPartMap);
#endif
setState(Volume::State_Pending);
}
snprintf(msg, sizeof(msg), "Volume %s %s disk inserted (%d:%d)",
getLabel(), getMountpoint(), mDiskMajor, mDiskMinor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskInserted,
msg, false);
}
void DirectVolume::handleDiskAdded(const char *devpath, NetlinkEvent *evt) {
mDiskMajor = atoi(evt->findParam("MAJOR"));
mDiskMinor = atoi(evt->findParam("MINOR"));
const char *tmp = evt->findParam("NPARTS");
if (tmp) {
mDiskNumParts = atoi(tmp);
} else {
SLOGW("Kernel block uevent missing 'NPARTS'");
mDiskNumParts = 1;
}
char msg[255];
/* int partmask = 0;
int i;
for (i = 1; i <= mDiskNumParts; i++) {
partmask |= (1 << i);
} */
mPendingPartNum = mDiskNumParts;
for (int i = 0; i < MAX_PARTITIONS; i++)
mPartMinors[i] = -1;
if (mDiskNumParts == 0) {
#ifdef PARTITION_DEBUG
SLOGD("Dv::diskIns - No partitions - good to go son!");
#endif
setState(Volume::State_Idle);
} else {
#ifdef PARTITION_DEBUG
SLOGD("Dv::diskIns - waiting for %d partitions (pending partitions: %d)",
mDiskNumParts, mPendingPartNum);
#endif
setState(Volume::State_Pending);
}
if(mVm->getIpoState() == VolumeManager::State_Ipo_Start) {
snprintf(msg, sizeof(msg), "Volume %s %s disk inserted (%d:%d)",
getLabel(), getMountpoint(), mDiskMajor, mDiskMinor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskInserted,
msg, false);
}
}
int Volume::unmountVol(bool force, bool revert) {
int i, rc;
if (getState() != Volume::State_Mounted) {
SLOGE("Volume %s unmount request when not mounted", getLabel());
errno = EINVAL;
return UNMOUNT_NOT_MOUNTED_ERR;
}
setState(Volume::State_Unmounting);
usleep(1000 * 1000); // Give the framework some time to react
/*
* First move the mountpoint back to our internal staging point
* so nobody else can muck with it while we work.
*/
if (doMoveMount(getMountpoint(), SEC_STGDIR, force)) {
SLOGE("Failed to move mount %s => %s (%s)", getMountpoint(), SEC_STGDIR, strerror(errno));
setState(Volume::State_Mounted);
return -1;
}
protectFromAutorunStupidity();
/*
* Unmount the tmpfs which was obscuring the asec image directory
* from non root users
*/
if (doUnmount(Volume::SEC_STG_SECIMGDIR, force)) {
SLOGE("Failed to unmount tmpfs on %s (%s)", SEC_STG_SECIMGDIR, strerror(errno));
goto fail_republish;
}
/*
* Remove the bindmount we were using to keep a reference to
* the previously obscured directory.
*/
if (doUnmount(Volume::SEC_ASECDIR, force)) {
SLOGE("Failed to remove bindmount on %s (%s)", SEC_ASECDIR, strerror(errno));
goto fail_remount_tmpfs;
}
/*
* Finally, unmount the actual block device from the staging dir
*/
if (doUnmount(Volume::SEC_STGDIR, force)) {
SLOGE("Failed to unmount %s (%s)", SEC_STGDIR, strerror(errno));
goto fail_recreate_bindmount;
}
SLOGI("%s unmounted sucessfully", getMountpoint());
/* If this is an encrypted volume, and we've been asked to undo
* the crypto mapping, then revert the dm-crypt mapping, and revert
* the device info to the original values.
*/
if (revert && isDecrypted()) {
cryptfs_revert_volume(getLabel());
revertDeviceInfo();
SLOGI("Encrypted volume %s reverted successfully", getMountpoint());
}
setState(Volume::State_Idle);
mCurrentlyMountedKdev = -1;
return 0;
/*
* Failure handling - try to restore everything back the way it was
*/
fail_recreate_bindmount:
if (mount(SEC_STG_SECIMGDIR, SEC_ASECDIR, "", MS_BIND, NULL)) {
SLOGE("Failed to restore bindmount after failure! - Storage will appear offline!");
goto out_nomedia;
}
fail_remount_tmpfs:
if (mount("tmpfs", SEC_STG_SECIMGDIR, "tmpfs", MS_RDONLY, "size=0,mode=0,uid=0,gid=0")) {
SLOGE("Failed to restore tmpfs after failure! - Storage will appear offline!");
goto out_nomedia;
}
fail_republish:
if (doMoveMount(SEC_STGDIR, getMountpoint(), force)) {
SLOGE("Failed to republish mount after failure! - Storage will appear offline!");
goto out_nomedia;
}
setState(Volume::State_Mounted);
return -1;
out_nomedia:
setState(Volume::State_NoMedia);
return -1;
}
int Volume::mountVol() {
dev_t deviceNodes[4];
int n, i, rc = 0;
char errmsg[255];
const char* externalStorage = getenv("EXTERNAL_STORAGE");
bool primaryStorage = externalStorage && !strcmp(getMountpoint(), externalStorage);
char decrypt_state[PROPERTY_VALUE_MAX];
char crypto_state[PROPERTY_VALUE_MAX];
char encrypt_progress[PROPERTY_VALUE_MAX];
int flags;
property_get("vold.decrypt", decrypt_state, "");
property_get("vold.encrypt_progress", encrypt_progress, "");
/* Don't try to mount the volumes if we have not yet entered the disk password
* or are in the process of encrypting.
*/
if ((getState() == Volume::State_NoMedia) ||
((!strcmp(decrypt_state, "1") || encrypt_progress[0]) && primaryStorage)) {
snprintf(errmsg, sizeof(errmsg),
"Volume %s %s mount failed - no media",
getLabel(), getMountpoint());
mVm->getBroadcaster()->sendBroadcast(
ResponseCode::VolumeMountFailedNoMedia,
errmsg, false);
errno = ENODEV;
return -1;
} else if (getState() != Volume::State_Idle) {
errno = EBUSY;
if (getState() == Volume::State_Pending) {
mRetryMount = true;
}
return -1;
}
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
setState(Volume::State_Mounted);
// mCurrentlyMountedKdev = XXX
return 0;
}
n = getDeviceNodes((dev_t *) &deviceNodes, 4);
if (!n) {
SLOGE("Failed to get device nodes (%s)\n", strerror(errno));
return -1;
}
/* If we're running encrypted, and the volume is marked as encryptable and nonremovable,
* and vold is asking to mount the primaryStorage device, then we need to decrypt
* that partition, and update the volume object to point to it's new decrypted
* block device
*/
property_get("ro.crypto.state", crypto_state, "");
flags = getFlags();
if (primaryStorage &&
((flags & (VOL_NONREMOVABLE | VOL_ENCRYPTABLE))==(VOL_NONREMOVABLE | VOL_ENCRYPTABLE)) &&
!strcmp(crypto_state, "encrypted") && !isDecrypted()) {
char new_sys_path[MAXPATHLEN];
char nodepath[256];
int new_major, new_minor;
if (n != 1) {
/* We only expect one device node returned when mounting encryptable volumes */
SLOGE("Too many device nodes returned when mounting %d\n", getMountpoint());
return -1;
}
if (cryptfs_setup_volume(getLabel(), MAJOR(deviceNodes[0]), MINOR(deviceNodes[0]),
new_sys_path, sizeof(new_sys_path),
&new_major, &new_minor)) {
SLOGE("Cannot setup encryption mapping for %d\n", getMountpoint());
return -1;
}
/* We now have the new sysfs path for the decrypted block device, and the
* majore and minor numbers for it. So, create the device, update the
* path to the new sysfs path, and continue.
*/
snprintf(nodepath,
sizeof(nodepath), "/dev/block/vold/%d:%d",
new_major, new_minor);
if (createDeviceNode(nodepath, new_major, new_minor)) {
SLOGE("Error making device node '%s' (%s)", nodepath,
strerror(errno));
}
// Todo: Either create sys filename from nodepath, or pass in bogus path so
// vold ignores state changes on this internal device.
updateDeviceInfo(nodepath, new_major, new_minor);
/* Get the device nodes again, because they just changed */
n = getDeviceNodes((dev_t *) &deviceNodes, 4);
if (!n) {
SLOGE("Failed to get device nodes (%s)\n", strerror(errno));
return -1;
}
}
for (i = 0; i < n; i++) {
char devicePath[255];
sprintf(devicePath, "/dev/block/vold/%d:%d", MAJOR(deviceNodes[i]),
MINOR(deviceNodes[i]));
SLOGI("%s being considered for volume %s\n", devicePath, getLabel());
errno = 0;
setState(Volume::State_Checking);
if (Fat::check(devicePath)) {
if (errno == ENODATA) {
SLOGW("%s does not contain a FAT filesystem\n", devicePath);
continue;
}
errno = EIO;
/* Badness - abort the mount */
SLOGE("%s failed FS checks (%s)", devicePath, strerror(errno));
setState(Volume::State_Idle);
return -1;
}
/*
* Mount the device on our internal staging mountpoint so we can
* muck with it before exposing it to non priviledged users.
*/
errno = 0;
int gid;
if (primaryStorage) {
// Special case the primary SD card.
// For this we grant write access to the SDCARD_RW group.
gid = AID_SDCARD_RW;
} else {
// For secondary external storage we keep things locked up.
gid = AID_MEDIA_RW;
}
if (Fat::doMount(devicePath, "/mnt/secure/staging", false, false, false,
AID_SYSTEM, gid, 0702, true)) {
SLOGE("%s failed to mount via VFAT (%s)\n", devicePath, strerror(errno));
continue;
}
SLOGI("Device %s, target %s mounted @ /mnt/secure/staging", devicePath, getMountpoint());
protectFromAutorunStupidity();
// only create android_secure on primary storage
if (primaryStorage && createBindMounts()) {
SLOGE("Failed to create bindmounts (%s)", strerror(errno));
umount("/mnt/secure/staging");
setState(Volume::State_Idle);
return -1;
}
/*
* Now that the bindmount trickery is done, atomically move the
* whole subtree to expose it to non priviledged users.
*/
if (doMoveMount("/mnt/secure/staging", getMountpoint(), false)) {
SLOGE("Failed to move mount (%s)", strerror(errno));
umount("/mnt/secure/staging");
setState(Volume::State_Idle);
return -1;
}
setState(Volume::State_Mounted);
mCurrentlyMountedKdev = deviceNodes[i];
return 0;
}
SLOGE("Volume %s found no suitable devices for mounting :(\n", getLabel());
setState(Volume::State_Idle);
return -1;
}
int Volume::formatVol() {
if (getState() == Volume::State_NoMedia) {
errno = ENODEV;
return -1;
} else if (getState() != Volume::State_Idle) {
errno = EBUSY;
return -1;
}
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
setState(Volume::State_Mounted);
// mCurrentlyMountedKdev = XXX
errno = EBUSY;
return -1;
}
bool formatEntireDevice = (mPartIdx == -1);
char devicePath[255];
dev_t diskNode = getDiskDevice();
dev_t partNode = MKDEV(MAJOR(diskNode), (formatEntireDevice ? 1 : mPartIdx));
setState(Volume::State_Formatting);
int ret = -1;
// Only initialize the MBR if we are formatting the entire device
if (formatEntireDevice) {
sprintf(devicePath, "/dev/block/vold/%d:%d",
MAJOR(diskNode), MINOR(diskNode));
if (initializeMbr(devicePath)) {
SLOGE("Failed to initialize MBR (%s)", strerror(errno));
goto err;
}
}
sprintf(devicePath, "/dev/block/vold/%d:%d",
MAJOR(partNode), MINOR(partNode));
#ifdef VOLD_EMMC_SHARES_DEV_MAJOR
// If emmc and sdcard share dev major number, vold may pick
// incorrectly based on partition nodes alone, formatting
// the wrong device. Use device nodes instead.
dev_t deviceNodes;
getDeviceNodes((dev_t *) &deviceNodes, 1);
sprintf(devicePath, "/dev/block/vold/%d:%d", MAJOR(deviceNodes), MINOR(deviceNodes));
#endif
if (mDebug) {
SLOGI("Formatting volume %s (%s)", getLabel(), devicePath);
}
if (Fat::format(devicePath, 0)) {
SLOGE("Failed to format (%s)", strerror(errno));
goto err;
}
ret = 0;
err:
setState(Volume::State_Idle);
return ret;
}
void DirectVolume::handlePartitionAdded(const char *devpath, NetlinkEvent *evt) {
bool is_udisk = false;
int major = atoi(evt->findParam("MAJOR"));
int minor = atoi(evt->findParam("MINOR"));
int part_num;
const char *tmp = evt->findParam("PARTN");
if (tmp) {
part_num = atoi(tmp);
} else {
SLOGW("Kernel block uevent missing 'PARTN'");
part_num = 1;
}
if (part_num > MAX_PARTITIONS || part_num < 1) {
SLOGE("Invalid 'PARTN' value");
return;
}
if(strstr(devpath,"pci")&&strstr(devpath,"sd"))
is_udisk = true;
if (isMountpointMounted(getMountpoint())||
(is_udisk&&(getState()!=Volume::State_Pending))) {
SLOGD("not the first udisk in handlePartitionAdded %d %d\n",major,minor);
mountExtraPartition(major,minor);
return;
}
if (part_num > mDiskNumParts) {
mDiskNumParts = part_num;
}
if (major != mDiskMajor) {
SLOGE("Partition '%s' has a different major than its disk!", devpath);
return;
}
#ifdef PARTITION_DEBUG
SLOGD("Dv:partAdd: part_num = %d, minor = %d\n", part_num, minor);
#endif
if (part_num >= MAX_PARTITIONS) {
SLOGE("Dv:partAdd: ignoring part_num = %d (max: %d)\n", part_num, MAX_PARTITIONS-1);
} else {
mPartMinors[part_num -1] = minor;
}
if(mPendingPartMap>1)
mPendingPartMap = mPendingPartMap>>1;
//mPendingPartMap &= ~(1 << part_num);
if (mPendingPartMap==0x1) {
#ifdef PARTITION_DEBUG
SLOGD("Dv:partAdd: Got all partitions - ready to rock!");
#endif
if (getState() != Volume::State_Formatting) {
setState(Volume::State_Idle);
if (mRetryMount == true) {
mRetryMount = false;
mountVol();
}
}
} else {
#ifdef PARTITION_DEBUG
SLOGD("Dv:partAdd: pending mask now = 0x%x", mPendingPartMap);
#endif
}
}
int Volume::mountVol() {
dev_t deviceNodes[4];
int n, i, rc = 0;
char errmsg[255];
if (getState() == Volume::State_NoMedia) {
snprintf(errmsg, sizeof(errmsg),
"Volume %s %s mount failed - no media",
getLabel(), getMountpoint());
mVm->getBroadcaster()->sendBroadcast(
ResponseCode::VolumeMountFailedNoMedia,
errmsg, false);
errno = ENODEV;
return -1;
} else if (getState() != Volume::State_Idle) {
errno = EBUSY;
return -1;
}
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
setState(Volume::State_Mounted);
// mCurrentlyMountedKdev = XXX
return 0;
}
n = getDeviceNodes((dev_t *) &deviceNodes, 4);
if (!n) {
SLOGE("Failed to get device nodes (%s)\n", strerror(errno));
return -1;
}
for (i = 0; i < n; i++) {
char devicePath[255];
sprintf(devicePath, "/dev/block/vold/%d:%d", MAJOR(deviceNodes[i]),
MINOR(deviceNodes[i]));
SLOGI("%s being considered for volume %s\n", devicePath, getLabel());
errno = 0;
setState(Volume::State_Checking);
if (Fat::check(devicePath)) {
if (errno == ENODATA) {
SLOGW("%s does not contain a FAT filesystem\n", devicePath);
continue;
}
errno = EIO;
/* Badness - abort the mount */
SLOGE("%s failed FS checks (%s)", devicePath, strerror(errno));
setState(Volume::State_Idle);
return -1;
}
/*
* Mount the device on our internal staging mountpoint so we can
* muck with it before exposing it to non priviledged users.
*/
errno = 0;
if (Fat::doMount(devicePath, "/mnt/secure/staging", false, false, false,
1000, 1015, 0702, true)) {
SLOGE("%s failed to mount via VFAT (%s)\n", devicePath, strerror(errno));
continue;
}
SLOGI("Device %s, target %s mounted @ /mnt/secure/staging", devicePath, getMountpoint());
protectFromAutorunStupidity();
if (createBindMounts()) {
SLOGE("Failed to create bindmounts (%s)", strerror(errno));
umount("/mnt/secure/staging");
setState(Volume::State_Idle);
return -1;
}
/*
* Now that the bindmount trickery is done, atomically move the
* whole subtree to expose it to non priviledged users.
*/
if (doMoveMount("/mnt/secure/staging", getMountpoint(), false)) {
SLOGE("Failed to move mount (%s)", strerror(errno));
umount("/mnt/secure/staging");
setState(Volume::State_Idle);
return -1;
}
setState(Volume::State_Mounted);
mCurrentlyMountedKdev = deviceNodes[i];
return 0;
}
SLOGE("Volume %s found no suitable devices for mounting :(\n", getLabel());
setState(Volume::State_Idle);
return -1;
}
void DirectVolume::handlePartitionRemoved(const char *devpath, NetlinkEvent *evt) {
int major = atoi(evt->findParam("MAJOR"));
int minor = atoi(evt->findParam("MINOR"));
char msg[255];
int state;
SLOGD("Volume %s %s partition %d:%d removed\n", getLabel(), getMountpoint(), major, minor);
char voldpath[255];
sprintf(voldpath,"/dev/block/vold/%d:%d",major,minor);
sem_wait(udisk_sem);
for(int i=0;i<EXTRA_UDISK_NUM;i++){
//SLOGD("extra_udisk_valid[%d] %d %s\n",i,extra_udisk_valid[i],extra_udisk_devpath[i]);
if(extra_udisk_valid[i]!=0&&!strcmp(voldpath,extra_udisk_devpath[i])){
SLOGD("doUnmount extra_udisk_path %s\n",extra_udisk_mountpath[i]);
if (doUnmount(extra_udisk_mountpath[i], true)) {
SLOGE("Failed to remove bindmount on %s (%s)", SEC_ASECDIR_EXT, strerror(errno));
sem_post(udisk_sem);
return;
}
extra_udisk_valid[i] = 0;
udiskSetState(State_Unmounting,i,extra_udisk_mountpath[i]);
udiskSetState(State_Idle,i,extra_udisk_mountpath[i]);
udiskSetState(State_NoMedia,i,extra_udisk_mountpath[i]);
snprintf(msg, sizeof(msg), "Volume Udisk%d %s disk removed (%d:%d)",
i, extra_udisk_mountpath[i], major, minor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeDiskRemoved,
msg, false);
sem_post(udisk_sem);
return;
}
}
sem_post(udisk_sem);
/*
* The framework doesn't need to get notified of
* partition removal unless it's mounted. Otherwise
* the removal notification will be sent on the Disk
* itself
*/
state = getState();
/* Remove event interrupted the add event, if state is checking,
* let remove event sleep, add event complete than remove event.
*/
while (state == Volume::State_Checking) {
sleep(1);
SLOGD("code from tp,Fail removed state =%d", state);
state = getState();
SLOGD("code from tp,new removed state =%d", state);
}
if (state != Volume::State_Mounted && state != Volume::State_Shared) {
return;
}
if ((dev_t) MKDEV(major, minor) == mCurrentlyMountedKdev) {
/*
* Yikes, our mounted partition is going away!
*/
snprintf(msg, sizeof(msg), "Volume %s %s bad removal (%d:%d)",
getLabel(), getMountpoint(), major, minor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval,
msg, false);
if (mVm->cleanupAsec(this, true)) {
SLOGE("Failed to cleanup ASEC - unmount will probably fail!");
}
if (Volume::unmountVol(true, false)) {
SLOGE("Failed to unmount volume on bad removal (%s)",
strerror(errno));
// XXX: At this point we're screwed for now
} else {
SLOGD("Crisis averted");
}
} else if (state == Volume::State_Shared) {
/* removed during mass storage */
snprintf(msg, sizeof(msg), "Volume %s bad removal (%d:%d)",
getLabel(), major, minor);
mVm->getBroadcaster()->sendBroadcast(ResponseCode::VolumeBadRemoval,
msg, false);
if (mVm->unshareVolume(getLabel(), "ums")) {
SLOGE("Failed to unshare volume on bad removal (%s)",
strerror(errno));
} else {
SLOGD("Crisis averted");
}
}
}
int Volume::formatVol(bool wipe) {
dev_t deviceNodes[DirectVolume::MAX_PARTITIONS];
bool isForceFat32 = false;
if (getState() == Volume::State_NoMedia) {
errno = ENODEV;
return -1;
} else if (getState() != Volume::State_Idle) {
errno = EBUSY;
return -1;
}
#ifdef MTK_SHARED_SDCARD
if(IsEmmcStorage()){
SLOGE("It is not allowed to format internal SDCARD with MTK_SHARED_SDCARD enabled");
errno = -EPERM;
return errno;
}
#endif
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
setState(Volume::State_Mounted);
// mCurrentlyMountedKdev = XXX
errno = EBUSY;
return -1;
}
SLOGI("mDiskNumParts = %d\n", getDeviceNumParts());
bool formatEntireDevice = (mPartIdx == -1);
char devicePath[255];
dev_t diskNode = getDiskDevice();
dev_t partNode =
MKDEV(MAJOR(diskNode),
MINOR(diskNode) + (formatEntireDevice ? 1 : mPartIdx));
setState(Volume::State_Formatting);
int ret = -1;
#ifdef MTK_MULTI_PARTITION_MOUNT_ONLY_SUPPORT
char *otgNodePath = getOtgNodePath();
if (0 == strcmp(getLabel(), "usbotg")) {
if (NULL == otgNodePath) {
SLOGE("usbotg: Volume formatVol otgNodePath is NULL");
goto err;
}
SLOGD("usbotg: Volume formatVol otgNodePath = %s", otgNodePath);
// Only initialize the MBR if we are formatting the entire device
if (formatEntireDevice) {
SLOGI("usbotg: Volume formatVol call initializeMbr().\n");
if (initializeMbr(otgNodePath)) {
SLOGE("usbotg: Volume formatVol failed to initialize MBR (%s)", strerror(errno));
goto err;
}
SLOGI("usbotg: Volume formatVol exit initializeMbr().\n");
}
if (Fat::format(otgNodePath, 0, wipe, isForceFat32)) {
SLOGE("usbotg: Volume formatVol Failed to format (%s)", strerror(errno));
goto err;
}
} else {
// Only initialize the MBR if we are formatting the entire device
if (formatEntireDevice) {
sprintf(devicePath, "/dev/block/vold/%d:%d",
major(diskNode), minor(diskNode));
SLOGI("Call initializeMbr().\n");
if (initializeMbr(devicePath)) {
SLOGE("Failed to initialize MBR (%s)", strerror(errno));
goto err;
}
SLOGI("Exit initializeMbr().\n");
}
sprintf(devicePath, "/dev/block/vold/%d:%d",
major(partNode), minor(partNode));
if (mDebug) {
SLOGI("Formatting volume %s (%s)", getLabel(), devicePath);
}
#ifdef MTK_ICUSB_SUPPORT
if(!strcmp(getLabel(), "icusb1") || !strcmp(getLabel(), "icusb2")){
isForceFat32 = true;
}
#endif
if (Fat::format(devicePath, 0, wipe, isForceFat32)) {
SLOGE("Failed to format (%s)", strerror(errno));
goto err;
}
}
#else
{
// Only initialize the MBR if we are formatting the entire device
if (formatEntireDevice) {
sprintf(devicePath, "/dev/block/vold/%d:%d",
major(diskNode), minor(diskNode));
SLOGI("Call initializeMbr().\n");
if (initializeMbr(devicePath)) {
SLOGE("Failed to initialize MBR (%s)", strerror(errno));
goto err;
}
}
sprintf(devicePath, "/dev/block/vold/%d:%d",
major(partNode), minor(partNode));
if (mDebug) {
SLOGI("Formatting volume %s (%s)", getLabel(), devicePath);
}
#ifdef MTK_ICUSB_SUPPORT
if(!strcmp(getLabel(), "icusb1") || !strcmp(getLabel(), "icusb2")){
isForceFat32 = true;
}
#endif
if (Fat::format(devicePath, 0, wipe, isForceFat32)) {
SLOGE("Failed to format (%s)", strerror(errno));
goto err;
}
}
#endif
ret = 0;
err:
setState(Volume::State_Idle);
return ret;
}
int Volume::mountVol() {
dev_t deviceNodes[DirectVolume::MAX_PARTITIONS];
int n, i, rc = 0, curState;
char errmsg[255];
int flags = getFlags();
/* we igore the setting of "VOL_PROVIDES_ASEC". if the storage is primary, then we will handle "Asec" */
//bool providesAsec = (flags & VOL_PROVIDES_ASEC) != 0;
const char* externalStorage = getenv("EXTERNAL_STORAGE");
bool providesAsec = externalStorage && !strcmp(getFuseMountpoint(), externalStorage);
// TODO: handle "bind" style mounts, for emulated storage
char decrypt_state[PROPERTY_VALUE_MAX];
char crypto_state[PROPERTY_VALUE_MAX];
char encrypt_progress[PROPERTY_VALUE_MAX];
if (mPreState != Volume::State_Shared && mVm->isSomeVolumeShared()) {
SLOGI("Some volume is State_Shared, force to share current volume, %s \n", getLabel());
return mVm->shareVolume(getLabel(), "ums");
}
property_get("vold.decrypt", decrypt_state, "");
property_get("vold.encrypt_progress", encrypt_progress, "");
#ifdef MTK_MULTI_PARTITION_MOUNT_ONLY_SUPPORT
char *otgNodePath = getOtgNodePath();
#endif
/* Don't try to mount the volumes if we have not yet entered the disk password
* or are in the process of encrypting.
*/
if ((getState() == Volume::State_NoMedia) ||
((!strcmp(decrypt_state, "trigger_restart_min_framework") || encrypt_progress[0]) && providesAsec)) {
snprintf(errmsg, sizeof(errmsg),
"Volume %s %s mount failed - no media",
getLabel(), getFuseMountpoint());
mVm->getBroadcaster()->sendBroadcast(
ResponseCode::VolumeMountFailedNoMedia,
errmsg, false);
errno = ENODEV;
return -1;
} else if (getState() != Volume::State_Idle) {
errno = EBUSY;
if (getState() == Volume::State_Pending) {
mRetryMount = true;
}
return -1;
}
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
setState(Volume::State_Mounted);
// mCurrentlyMountedKdev = XXX
return 0;
}
#ifdef MTK_SHARED_SDCARD
SLOGI("mountvol: IsEmmcStorage=%d", IsEmmcStorage());
if (IsEmmcStorage()) {
property_set("ctl.start", "sdcard");
waitForServiceState("sdcard", "running");
setState(Volume::State_Mounted);
return 0;
}
#endif
n = getDeviceNodes((dev_t *) &deviceNodes, DirectVolume::MAX_PARTITIONS);
if (!n) {
SLOGE("Failed to get device nodes (%s)\n", strerror(errno));
return -1;
}
SLOGD("Found %d device nodes", n);
#ifndef MTK_EMULATOR_SUPPORT
if (!IsEmmcStorage() && !strncmp(getLabel(), "sdcard", 6)) {
#ifdef MTK_FAT_ON_NAND
if( -1 == mLoopDeviceIdx){
#endif
SLOGD("Reinit SD card");
if (mVm->reinitExternalSD()){
SLOGE("Fail: reinitExternalSD()");
/* Card inserted but fail to reinit, there is something wrong with this card */
errno = EIO;
return -1;
}
#ifdef MTK_FAT_ON_NAND
}
#endif
}
#endif
/* If we're running encrypted, and the volume is marked as encryptable and nonremovable,
* and also marked as providing Asec storage, then we need to decrypt
* that partition, and update the volume object to point to it's new decrypted
* block device
*/
property_get("ro.crypto.state", crypto_state, "");
if (providesAsec &&
((flags & (VOL_NONREMOVABLE | VOL_ENCRYPTABLE))==(VOL_NONREMOVABLE | VOL_ENCRYPTABLE)) &&
!strcmp(crypto_state, "encrypted") && !isDecrypted()) {
char new_sys_path[MAXPATHLEN];
char nodepath[256];
int new_major, new_minor;
if (n != 1) {
/* We only expect one device node returned when mounting encryptable volumes */
SLOGE("Too many device nodes returned when mounting %s\n", getMountpoint());
return -1;
}
if (cryptfs_setup_volume(getLabel(), MAJOR(deviceNodes[0]), MINOR(deviceNodes[0]),
new_sys_path, sizeof(new_sys_path),
&new_major, &new_minor)) {
SLOGE("Cannot setup encryption mapping for %s\n", getMountpoint());
return -1;
}
#ifdef MTK_MULTI_PARTITION_MOUNT_ONLY_SUPPORT
if (0 == strcmp(getLabel(), "usbotg")) {
if (createDeviceNode(otgNodePath, new_major, new_minor)) {
SLOGE("usbotg: Volume mountVol Error making device node '%s' (%s)", otgNodePath,
strerror(errno));
}
updateDeviceInfo(otgNodePath, new_major, new_minor);
} else
#endif
/* We now have the new sysfs path for the decrypted block device, and the
* majore and minor numbers for it. So, create the device, update the
* path to the new sysfs path, and continue.
*/
{
snprintf(nodepath,
sizeof(nodepath), "/dev/block/vold/%d:%d",
new_major, new_minor);
if (createDeviceNode(nodepath, new_major, new_minor)) {
SLOGE("Error making device node '%s' (%s)", nodepath,
strerror(errno));
}
// Todo: Either create sys filename from nodepath, or pass in bogus path so
// vold ignores state changes on this internal device.
updateDeviceInfo(nodepath, new_major, new_minor);
/* Get the device nodes again, because they just changed */
n = getDeviceNodes((dev_t *) &deviceNodes, DirectVolume::MAX_PARTITIONS);
if (!n) {
SLOGE("Failed to get device nodes (%s)\n", strerror(errno));
return -1;
}
}
}
#ifdef MTK_MULTI_PARTITION_MOUNT_ONLY_SUPPORT
if (0 == strcmp(getLabel(), "usbotg")) {
setState(Volume::State_Checking);
if (0 != mkdir(getMountpoint(), 0700)) {
SLOGE("usbotg: Volume mountVol (%s) mkdir failed (%s)" , getMountpoint(), strerror(errno));
}
else {
SLOGD("usbotg: Volume mountVol (%s) mkdir success", getMountpoint());
}
if (0 != chown(getMountpoint(), AID_MEDIA_RW, AID_MEDIA_RW)) {
SLOGE("usbotg: Volume mountVol (%s) mkdir failed (%s)" , getMountpoint(), strerror(errno));
}
else {
SLOGD("usbotg: Volume mountVol (%s) mkdir success", getMountpoint());
}
if (0 != mkdir(getFuseMountpoint(), 0755)) {
SLOGE("usbotg: Volume mountVol (%s) mkdir failed (%s)" , getFuseMountpoint(), strerror(errno));
}
else {
SLOGD("usbotg: Volume mountVol (%s) mkdir success", getFuseMountpoint());
}
int fd;
int counter = 0;
while(1) {
counter++;
if( counter == 10)
{
SLOGD("timeout open otgNodePath counter:%d\n",counter);
break;
}
if ((fd = open(otgNodePath, O_RDONLY)) < 0) {
SLOGE(" cannot open device '%s' (errno=%d) (%s)", otgNodePath, errno,strerror(errno));
usleep(30000);
} else {
SLOGD(" can access %s successfully", otgNodePath);
close(fd);
break;
}
}
if (Fat::check(otgNodePath)) {
SLOGE("usbotg: %s fat check fail (%s)\n", otgNodePath, strerror(errno));
char cmd[255] = {0};
sprintf(cmd, "/system/bin/sh -c \"rm -r %s\"", getFuseMountpoint());
system(cmd);
SLOGD("usbotg: Volume unmountVol cmd = %s !!!", cmd);
sprintf(cmd, "/system/bin/sh -c \"rm -r %s\"", getMountpoint());
system(cmd);
SLOGD("usbotg: Volume unmountVol cmd = %s !!!", cmd);
return -1;
}
if (Fat::doMount(otgNodePath, getMountpoint(), false, false, false,
AID_MEDIA_RW, AID_MEDIA_RW, 0007, true)) {
SLOGE("usbotg: Volume mountVol %s Otg failed to mount via VFAT (%s)\n", otgNodePath, strerror(errno));
char cmd[255] = {0};
sprintf(cmd, "/system/bin/sh -c \"rm -r %s\"", getFuseMountpoint());
system(cmd);
SLOGD("usbotg: Volume unmountVol cmd = %s !!!", cmd);
sprintf(cmd, "/system/bin/sh -c \"rm -r %s\"", getMountpoint());
system(cmd);
SLOGD("usbotg: Volume unmountVol cmd = %s !!!", cmd);
setState(Volume::State_Idle);
return -1;
}
extractMetadata(otgNodePath);
//fork sdcard process instead of witch service in init.rc
struct sigaction act, oact;
act.sa_handler = sigCld;
act.sa_flags = 0;
sigemptyset(&act.sa_mask);
if (sigaction(SIGCHLD, &act, &oact) <0) {
SLOGD("Error occured on signal");
return -1;
}
pid_t pid = fork();
if (pid < 0) {
SLOGD("Error occured on fork");
return 0;
} else if (pid == 0) {
SLOGD("usbotg: Volume mountVol go execv,pid=%d", pid);
const char* mountCmd = "/system/bin/sdcard";
const char* mountpoint = getMountpoint();
const char* fusemountpoint = getFuseMountpoint();
const char* argv0[] = {
mountCmd,
"-u",
"1023",
"-g",
"1023",
"-w",
"1023",
"-d",
mountpoint,
fusemountpoint,
NULL
};
SLOGD("%s %s %s %s %s %s %s %s %s %s", argv0[0], argv0[1], argv0[2], argv0[3], argv0[4], argv0[5], argv0[6], argv0[7], argv0[8], argv0[9]);
if (execv(mountCmd,(char* const*)argv0) < 0) {
ALOGE("execv(%s) failed: %s\n", mountCmd, strerror(errno));
SLOGD("usbotg: Volume mountVol mounted failed");
char cmd[255] = {0};
sprintf(cmd, "/system/bin/sh -c \"rm -r %s\"", getFuseMountpoint());
system(cmd);
SLOGD("usbotg: Volume unmountVol cmd = %s !!!", cmd);
sprintf(cmd, "/system/bin/sh -c \"rm -r %s\"", getMountpoint());
system(cmd);
SLOGD("usbotg: Volume unmountVol cmd = %s !!!", cmd);
exit(127);
}
exit(127);
} else{
SLOGD("usbotg: Volume mountVol mounted succed,pid=%d",pid);
setState(Volume::State_Mounted);
mPid = pid;
return 0;
}
}
#endif
for (i = 0; i < n; i++) {
char devicePath[255];
sprintf(devicePath, "/dev/block/vold/%d:%d", major(deviceNodes[i]),
minor(deviceNodes[i]));
if (deviceNodes[i] == (dev_t)(-1)) {
SLOGE("Partition '%s' is invalid dev_t. Skip mounting!", devicePath);
continue;
}
SLOGI("%s being considered for volume %s\n", devicePath, getLabel());
errno = 0;
if ((getState() == Volume::State_NoMedia) ) {
SLOGI("NoMedia! skip mounting the storage. Update errno to ENODEV");
errno = ENODEV;
return -1;
}
setState(Volume::State_Checking);
/*
* If FS check failed, we should move on to next partition
* instead of returning an error
*/
__CHECK_FAT_AGAIN:
if (Fat::check(devicePath)) {
#if 0
if (errno == ENODATA) {
SLOGW("%s does not contain a FAT filesystem\n", devicePath);
continue;
}
errno = EIO;
/* Badness - abort the mount */
SLOGE("%s failed FS checks (%s)", devicePath, strerror(errno));
setState(Volume::State_Idle);
return -1;
#else
#ifdef MTK_EMMC_SUPPORT
if ( mVm->isFirstBoot() && IsEmmcStorage()) {
SLOGI("** This is first boot and internal sd is not formatted. Try to format it. (%s)\n", devicePath);
if (Fat::format(devicePath, 0, false)) {
SLOGE("Failed to format (%s)", strerror(errno));
}
else {
SLOGI("Format successfully. (%s)\n", devicePath);
property_set("persist.vold.first_boot", "0");
goto __CHECK_FAT_AGAIN;
}
}
#endif
#ifdef MTK_FAT_ON_NAND
char first_boot[PROPERTY_VALUE_MAX] ;
property_get("persist.vold.fat_first_boot", first_boot, "1");
if (!strcmp(first_boot, "1") && !strcmp(getLabel(), "sdcard0")) {
SLOGI("** This is first boot and internal sd is not formatted. Try to format it. (%s)\n", devicePath);
if (Fat::format(devicePath, 0, false)) {
SLOGE("Failed to format %s(%d)", strerror(errno), errno);
}
else {
SLOGI("%s format successfully\n", devicePath);
property_set("persist.vold.fat_first_boot", "0");
goto __CHECK_FAT_AGAIN;
}
}
#endif
SLOGW("%s failed FS checks, move on to next partition", devicePath);
continue;
#endif
}
#ifdef MTK_EMMC_SUPPORT
else {
if ( mVm->isFirstBoot() && IsEmmcStorage()) {
property_set("persist.vold.first_boot", "0");
}
}
#endif
errno = 0;
int gid;
#ifdef MTK_EMMC_DISCARD
if (Fat::doMount(devicePath, getMountpoint(), false, false, false,
AID_MEDIA_RW, AID_MEDIA_RW, 0007, true, IsEmmcStorage())) {
SLOGE("%s failed to mount via VFAT (%s)\n", devicePath, strerror(errno));
continue;
}
#else //MTK_EMMC_DISCARD
if (Fat::doMount(devicePath, getMountpoint(), false, false, false,
AID_MEDIA_RW, AID_MEDIA_RW, 0007, true)) {
SLOGE("%s failed to mount via VFAT (%s)\n", devicePath, strerror(errno));
continue;
}
#endif //MTK_EMMC_DISCARD
SLOGI("providesAsec = %d", providesAsec);
extractMetadata(devicePath);
#ifdef MTK_2SDCARD_SWAP
char secImgDir[PATH_MAX];
sprintf(secImgDir, "%s/.android_secure", getMountpoint());
SLOGI("Create %s in advance", secImgDir);
/* Whether primary or secondary storage, create .android folder in advance to prevent from media out of space for Bindmounts fail
This case happens in SWAP feature.
*/
if (access(secImgDir, R_OK | X_OK)) {
if (errno == ENOENT) {
if (mkdir(secImgDir, 0777)) {
SLOGE("Failed to create %s (%s)", secImgDir, strerror(errno));
}
} else {
SLOGE("Failed to access %s (%s)", secImgDir, strerror(errno));
}
}
#endif
if (providesAsec && mountAsecExternal() != 0) {
SLOGE("Failed to mount secure area (%s)", strerror(errno));
umount(getMountpoint());
setState(Volume::State_Idle);
return -1;
}
char service[64];
char service_id[64];
strcpy(service_id, getMountpoint()+strlen(Volume::MEDIA_DIR)+1);
snprintf(service, 64, "fuse_%s", service_id);
property_set("ctl.start", service);
waitForServiceState(service, "running");
int fd;
if ((fd = open(devicePath, O_RDONLY)) < 0) {
SLOGE("Cannot open device '%s' (errno=%d)", devicePath, errno);
}
else {
setState(Volume::State_Mounted, Fat::isFat32(fd));
close(fd);
}
mCurrentlyMountedKdev = deviceNodes[i];
return 0;
}
SLOGE("Volume %s found no suitable devices for mounting :(\n", getLabel());
curState = getState();
if (curState == Volume::State_NoMedia) {
SLOGI("Mount fail caused by NoMedia! Update errno to ENODEV");
errno = ENODEV;
}
if ((curState != Volume::State_NoMedia) &&
(curState != Volume::State_Mounted)) {
setState(Volume::State_Idle);
}
if(curState == Volume::State_Mounted) {
return 0;
}
return -1;
}
int Volume::unmountVol(bool force, bool revert) {
int i, rc;
int flags = getFlags();
bool providesAsec = (flags & VOL_PROVIDES_ASEC) != 0;
bool is_emulated_sd = false;
#ifdef MTK_SHARED_SDCARD
if (IsEmmcStorage()) {
providesAsec = false;
is_emulated_sd = true;
}
#endif
if (getState() != Volume::State_Mounted) {
SLOGE("Volume %s unmount request when not mounted", getLabel());
errno = EINVAL;
return UNMOUNT_NOT_MOUNTED_ERR;
}
#ifdef MTK_MULTI_PARTITION_MOUNT_ONLY_SUPPORT
if (false == isMountpointMounted(getFuseMountpoint())) {
SLOGD("usbotg: Volume unmountVol %s is already unmounted", getFuseMountpoint());
goto unmount_success;
}
#endif
setState(Volume::State_Unmounting);
usleep(1000 * 100); // Give the framework some time to react
char service[64];
char service_id[64];
strcpy(service_id, getMountpoint()+strlen(Volume::MEDIA_DIR)+1);
snprintf(service, 64, "fuse_%s", service_id);
if (is_emulated_sd) {
snprintf(service, 64, "sdcard");
}
#ifdef MTK_MULTI_PARTITION_MOUNT_ONLY_SUPPORT
if (0 == strcmp(getLabel(), "usbotg")) {
sPid = mPid;
SLOGD("usbotg: Volume unmountVol ,mPid=%d",mPid);
if(-1 != mPid)
{
kill(mPid,SIGKILL);
}
SLOGD("usbotg: Volume unmountVol ,mountpoint=%s",getFuseMountpoint());
if (doUnmount(getFuseMountpoint(), force)) {
SLOGE("Failed to unmount %s (%s)", getFuseMountpoint(), strerror(errno));
goto fail_remount_secure;
}
if (doUnmount(getMountpoint(), force)) {
SLOGE("Failed to unmount %s (%s)", getMountpoint(), strerror(errno));
goto fail_remount_secure;
}
SLOGI("usbotg: Volume unmounted sucessfully");
} else {
property_set("ctl.stop", service);
/* Give it a chance to stop. I wish we had a synchronous way to determine this... */
//sleep(1);
waitForServiceState(service, "stopped");
// TODO: determine failure mode if FUSE times out
if (providesAsec && doUnmount(Volume::SEC_ASECDIR_EXT, force) != 0) {
SLOGE("Failed to unmount secure area on %s (%s)", getMountpoint(), strerror(errno));
goto out_mounted;
}
/* Now that the fuse daemon is dead, unmount it */
if (doUnmount(getFuseMountpoint(), force) != 0) {
SLOGE("Failed to unmount %s (%s)", getFuseMountpoint(), strerror(errno));
goto fail_remount_secure;
}
/* Unmount the real sd card */
if (!is_emulated_sd) {
if (doUnmount(getMountpoint(), force) != 0) {
SLOGE("Failed to unmount %s (%s)", getMountpoint(), strerror(errno));
goto fail_remount_secure;
}
SLOGI("%s unmounted successfully", getMountpoint());
}
}
#else
{
#define MAX_NEED_TO_WAIT 10
bool need_to_wait = false;
int need_to_wait_count = 0;
do {
Process::killProcessesWithOpenFiles(getFuseMountpoint(), 0, "mdlogger", &need_to_wait);
if(need_to_wait) {
need_to_wait_count++;
SLOGI("need_to_wait=%d, need_to_wait_count=%d,", need_to_wait, need_to_wait_count);
usleep(1000*1000);
}
else {
break;
}
} while (need_to_wait && need_to_wait_count < MAX_NEED_TO_WAIT);
property_set("ctl.stop", service);
/* Give it a chance to stop. I wish we had a synchronous way to determine this... */
//sleep(1);
waitForServiceState(service, "stopped");
// TODO: determine failure mode if FUSE times out
if (providesAsec && doUnmount(Volume::SEC_ASECDIR_EXT, force) != 0) {
SLOGE("Failed to unmount secure area on %s (%s)", getMountpoint(), strerror(errno));
goto out_mounted;
}
/* Now that the fuse daemon is dead, unmount it */
if (doUnmount(getFuseMountpoint(), force) != 0) {
SLOGE("Failed to unmount %s (%s)", getFuseMountpoint(), strerror(errno));
goto fail_remount_secure;
}
/* Unmount the real sd card */
if (!is_emulated_sd) {
if (doUnmount(getMountpoint(), force) != 0) {
SLOGE("Failed to unmount %s (%s)", getMountpoint(), strerror(errno));
goto fail_remount_secure;
}
SLOGI("%s unmounted successfully", getMountpoint());
}
}
#endif
/* If this is an encrypted volume, and we've been asked to undo
* the crypto mapping, then revert the dm-crypt mapping, and revert
* the device info to the original values.
*/
if (revert && isDecrypted()) {
cryptfs_revert_volume(getLabel());
revertDeviceInfo();
SLOGI("Encrypted volume %s reverted successfully", getMountpoint());
}
setUuid(NULL);
setUserLabel(NULL);
setState(Volume::State_Idle);
unmount_success:
mCurrentlyMountedKdev = -1;
#ifdef MTK_MULTI_PARTITION_MOUNT_ONLY_SUPPORT
if (0 == strcmp(getLabel(), "usbotg")) {
char cmd[255] = {0};
sprintf(cmd, "/system/bin/sh -c \"rm -r %s\"", getFuseMountpoint());
system(cmd);
SLOGD("usbotg: Volume unmountVol cmd = %s !!!", cmd);
sprintf(cmd, "/system/bin/sh -c \"rm -r %s\"", getMountpoint());
system(cmd);
SLOGD("usbotg: Volume unmountVol cmd = %s !!!", cmd);
//remove(getMountpoint());
}
#endif
return 0;
fail_remount_secure:
if (providesAsec && mountAsecExternal() != 0) {
SLOGE("Failed to remount secure area (%s)", strerror(errno));
goto out_nomedia;
}
out_mounted:
property_set("ctl.start", service);
waitForServiceState(service, "running");
setState(Volume::State_Mounted);
return -1;
out_nomedia:
setState(Volume::State_NoMedia);
return -1;
}
bool Volume::isPrimaryStorage() {
const char* externalStorage = getenv("EXTERNAL_STORAGE") ? : "/mnt/sdcard";
return !strcmp(getMountpoint(), externalStorage);
}
void DirectVolume::handlePartitionChanged(const char *devpath, NetlinkEvent *evt) {
int major = atoi(evt->findParam("MAJOR"));
int minor = atoi(evt->findParam("MINOR"));
SLOGD("Volume %s %s partition %d:%d changed\n", getLabel(), getMountpoint(), major, minor);
}
int Volume::formatVol() {
dev_t deviceNodes[MAX_SUP_PART];
int part_num;
if (getState() == Volume::State_NoMedia) {
errno = ENODEV;
return -1;
} else if (getState() != Volume::State_Idle) {
errno = EBUSY;
return -1;
}
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
setState(Volume::State_Mounted);
// mCurrentlyMountedKdev = XXX
errno = EBUSY;
return -1;
}
bool formatEntireDevice = ((mPartIdx == -1) && (0 != getDeviceNumParts()));
char devicePath[255];
dev_t diskNode = getDiskDevice();
//dev_t partNode = MKDEV(MAJOR(diskNode), (formatEntireDevice ? 1 : mPartIdx));
//part_num reserved for mutiple partition support
//
getDeviceNodes((dev_t *) &deviceNodes, MAX_SUP_PART);
part_num = 1;
dev_t partNode = deviceNodes[part_num - 1];
setState(Volume::State_Formatting);
int ret = -1;
// Only initialize the MBR if we are formatting the entire device
if (formatEntireDevice) {
sprintf(devicePath, "/dev/block/vold/%d:%d",
MAJOR(diskNode), MINOR(diskNode));
SLOGI("mDiskNumParts = %d\n", getDeviceNumParts());
if (initializeMbr(devicePath)) {
SLOGE("Failed to initialize MBR (%s)", strerror(errno));
goto err;
}
}
sprintf(devicePath, "/dev/block/vold/%d:%d",
MAJOR(partNode), MINOR(partNode));
SLOGI("mDiskNumParts = %d\n", getDeviceNumParts());
if (mDebug) {
SLOGI("Formatting volume %s (%s)", getLabel(), devicePath);
}
if (Fat::format(devicePath, 0)) {
SLOGE("Failed to format (%s)", strerror(errno));
goto err;
}
ret = 0;
err:
setState(Volume::State_Idle);
return ret;
}
int Volume::mountVol() {
dev_t deviceNodes[MAX_SUP_PART];
// dev_t deviceNodes[4];
int n, i, curState, rc = 0;
char errmsg[255];
const char* externalStorage = getenv("EXTERNAL_STORAGE");
bool primaryStorage = externalStorage && !strcmp(getMountpoint(), externalStorage);
char decrypt_state[PROPERTY_VALUE_MAX];
char crypto_state[PROPERTY_VALUE_MAX];
char encrypt_progress[PROPERTY_VALUE_MAX];
int flags;
property_get("vold.decrypt", decrypt_state, "");
property_get("vold.encrypt_progress", encrypt_progress, "");
/* Don't try to mount the volumes if we have not yet entered the disk password
* or are in the process of encrypting.
*/
if ((getState() == Volume::State_NoMedia) ||
((!strcmp(decrypt_state, "1") || encrypt_progress[0]) && primaryStorage)) {
snprintf(errmsg, sizeof(errmsg),
"Volume %s %s mount failed - no media",
getLabel(), getMountpoint());
mVm->getBroadcaster()->sendBroadcast(
ResponseCode::VolumeMountFailedNoMedia,
errmsg, false);
errno = ENODEV;
return -1;
} else if (getState() != Volume::State_Idle) {
errno = EBUSY;
if (getState() == Volume::State_Pending) {
mRetryMount = true;
}
return -1;
}
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
setState(Volume::State_Mounted);
// mCurrentlyMountedKdev = XXX
return 0;
}
#ifdef MTK_SHARED_SDCARD
if (IsEmmcStorage()) {
setState(Volume::State_Mounted);
return 0;
}
#endif
// n = getDeviceNodes((dev_t *) &deviceNodes, 4);
n = getDeviceNodes((dev_t *) &deviceNodes, MAX_SUP_PART);
if (!n) {
SLOGE("Failed to get device nodes (%s)\n", strerror(errno));
return -1;
}
SLOGD("Found %d device nodes", n);
#ifdef MTK_SD_REINIT_SUPPORT
if (!IsEmmcStorage()) {
SLOGD("Reinit SD card");
if (mVm->reinitExternalSD()){
SLOGD("Fail: reinitExternalSD()");
}
}
#endif
/* If we're running encrypted, and the volume is marked as encryptable and nonremovable,
* and vold is asking to mount the primaryStorage device, then we need to decrypt
* that partition, and update the volume object to point to it's new decrypted
* block device
*/
property_get("ro.crypto.state", crypto_state, "");
flags = getFlags();
if (primaryStorage &&
((flags & (VOL_NONREMOVABLE | VOL_ENCRYPTABLE))==(VOL_NONREMOVABLE | VOL_ENCRYPTABLE)) &&
!strcmp(crypto_state, "encrypted") && !isDecrypted()) {
char new_sys_path[MAXPATHLEN];
char nodepath[256];
int new_major, new_minor;
if (n != 1) {
/* We only expect one device node returned when mounting encryptable volumes */
SLOGE("Too many device nodes returned when mounting %d\n", getMountpoint());
return -1;
}
if (cryptfs_setup_volume(getLabel(), MAJOR(deviceNodes[0]), MINOR(deviceNodes[0]),
new_sys_path, sizeof(new_sys_path),
&new_major, &new_minor)) {
SLOGE("Cannot setup encryption mapping for %d\n", getMountpoint());
return -1;
}
/* We now have the new sysfs path for the decrypted block device, and the
* majore and minor numbers for it. So, create the device, update the
* path to the new sysfs path, and continue.
*/
snprintf(nodepath,
sizeof(nodepath), "/dev/block/vold/%d:%d",
new_major, new_minor);
if (createDeviceNode(nodepath, new_major, new_minor)) {
SLOGE("Error making device node '%s' (%s)", nodepath,
strerror(errno));
}
// Todo: Either create sys filename from nodepath, or pass in bogus path so
// vold ignores state changes on this internal device.
updateDeviceInfo(nodepath, new_major, new_minor);
/* Get the device nodes again, because they just changed */
n = getDeviceNodes((dev_t *) &deviceNodes, MAX_SUP_PART);
if (!n) {
SLOGE("Failed to get device nodes (%s)\n", strerror(errno));
return -1;
}
}
for (i = 0; i < n; i++) {
char devicePath[255];
sprintf(devicePath, "/dev/block/vold/%d:%d", MAJOR(deviceNodes[i]),
MINOR(deviceNodes[i]));
if (deviceNodes[i] == (dev_t)(-1)) {
SLOGE("Partition '%s' is invalid dev_t. Skip mounting!", devicePath);
continue;
}
SLOGI("%s being considered for volume %s\n", devicePath, getLabel());
errno = 0;
setState(Volume::State_Checking);
/*
* If FS check failed, we should move on to next partition
* instead of returning an error
*/
__CHECK_FAT_AGAIN:
if (Fat::check(devicePath)) {
#if 0
if (errno == ENODATA) {
SLOGW("%s does not contain a FAT filesystem\n", devicePath);
continue;
}
errno = EIO;
/* Badness - abort the mount */
SLOGE("%s failed FS checks (%s)", devicePath, strerror(errno));
setState(Volume::State_Idle);
return -1;
#else
#ifdef MTK_EMMC_SUPPORT
if ( mVm->isFirstBoot() && IsEmmcStorage()) {
SLOGI("** This is first boot and internal sd is not formatted. Try to format it. (%s)\n", devicePath);
if (Fat::format(devicePath, 0)) {
SLOGE("Failed to format (%s)", strerror(errno));
}
else {
SLOGI("Format successfully. (%s)\n", devicePath);
property_set("persist.first_boot", "0");
goto __CHECK_FAT_AGAIN;
}
}
#endif
SLOGW("%s failed FS checks, move on to next partition", devicePath);
continue;
#endif
}
#ifdef MTK_EMMC_SUPPORT
else {
if ( mVm->isFirstBoot() && IsEmmcStorage()) {
property_set("persist.first_boot", "0");
}
}
#endif
/*
* Mount the device on our internal staging mountpoint so we can
* muck with it before exposing it to non priviledged users.
*/
errno = 0;
int gid;
if (primaryStorage) {
// Special case the primary SD card.
// For this we grant write access to the SDCARD_RW group.
gid = AID_SDCARD_RW;
} else {
// For secondary external storage we keep things locked up.
/* Note: Change the google default setting from AID_MEDIA_RW to AID_SDCARD_RW. */
gid = AID_SDCARD_RW;
}
if (Fat::doMount(devicePath, "/mnt/secure/staging", false, false, false,
AID_SYSTEM, gid, 0702, true)) {
SLOGE("%s failed to mount via VFAT (%s)\n", devicePath, strerror(errno));
// kill the process anyway
Process::killProcessesWithOpenFiles("/mnt/secure/staging", 2);
continue;
}
SLOGI("Device %s, target %s mounted @ /mnt/secure/staging", devicePath, getMountpoint());
SLOGI("PrimaryStory = %d, externalStorage = %s", primaryStorage, externalStorage);
protectFromAutorunStupidity();
// only create android_secure on primary storage
if (primaryStorage && createBindMounts()) {
SLOGE("Failed to create bindmounts (%s)", strerror(errno));
umount("/mnt/secure/staging");
setState(Volume::State_Idle);
return -1;
}
/*
* Now that the bindmount trickery is done, atomically move the
* whole subtree to expose it to non priviledged users.
*/
if (doMoveMount("/mnt/secure/staging", getMountpoint(), false)) {
SLOGE("Failed to move mount (%s)", strerror(errno));
umount("/mnt/secure/staging");
setState(Volume::State_Idle);
return -1;
}
setState(Volume::State_Mounted);
mCurrentlyMountedKdev = deviceNodes[i];
return 0;
}
SLOGE("Volume %s found no suitable devices for mounting :(\n", getLabel());
spin_lock(&mStateLock);
curState = getState();
if ((curState != Volume::State_NoMedia) &&
(curState != Volume::State_Mounted))
setState(Volume::State_Idle);
if(curState == Volume::State_Mounted) {
spin_unlock(&mStateLock);
return 0;
}
spin_unlock(&mStateLock);
return -1;
}
int Volume::unmountVol(bool force) {
int i, rc;
if (getState() != Volume::State_Mounted) {
SLOGE("Volume %s unmount request when not mounted", getLabel());
errno = EINVAL;
return -1;
}
setState(Volume::State_Unmounting);
usleep(1000 * 1000); // Give the framework some time to react
/*
* First move the mountpoint back to our internal staging point
* so nobody else can muck with it while we work.
*/
if (doMoveMount(getMountpoint(), SEC_STGDIR, force)) {
SLOGE("Failed to move mount %s => %s (%s)", getMountpoint(), SEC_STGDIR, strerror(errno));
setState(Volume::State_Mounted);
return -1;
}
protectFromAutorunStupidity();
/* Undo createBindMounts(), which is only called for EXTERNAL_STORAGE */
const char *externalPath = getenv("EXTERNAL_STORAGE") ?: "/mnt/sdcard";
if (0 == strcmp(getMountpoint(), externalPath)) {
/*
* Unmount the tmpfs which was obscuring the asec image directory
* from non root users
*/
if (doUnmount(Volume::SEC_STG_SECIMGDIR, force)) {
SLOGE("Failed to unmount tmpfs on %s (%s)", SEC_STG_SECIMGDIR, strerror(errno));
goto fail_republish;
}
/*
* Remove the bindmount we were using to keep a reference to
* the previously obscured directory.
*/
if (doUnmount(Volume::SEC_ASECDIR, force)) {
SLOGE("Failed to remove bindmount on %s (%s)", SEC_ASECDIR, strerror(errno));
goto fail_remount_tmpfs;
}
}
/*
* Finally, unmount the actual block device from the staging dir
*/
if (doUnmount(Volume::SEC_STGDIR, force)) {
SLOGE("Failed to unmount %s (%s)", SEC_STGDIR, strerror(errno));
goto fail_recreate_bindmount;
}
SLOGI("%s unmounted sucessfully", getMountpoint());
setState(Volume::State_Idle);
mCurrentlyMountedKdev = -1;
return 0;
/*
* Failure handling - try to restore everything back the way it was
*/
fail_recreate_bindmount:
if (mount(SEC_STG_SECIMGDIR, SEC_ASECDIR, "", MS_BIND, NULL)) {
SLOGE("Failed to restore bindmount after failure! - Storage will appear offline!");
goto out_nomedia;
}
fail_remount_tmpfs:
if (mount("tmpfs", SEC_STG_SECIMGDIR, "tmpfs", MS_RDONLY, "size=0,mode=0,uid=0,gid=0")) {
SLOGE("Failed to restore tmpfs after failure! - Storage will appear offline!");
goto out_nomedia;
}
fail_republish:
if (doMoveMount(SEC_STGDIR, getMountpoint(), force)) {
SLOGE("Failed to republish mount after failure! - Storage will appear offline!");
goto out_nomedia;
}
setState(Volume::State_Mounted);
return -1;
out_nomedia:
setState(Volume::State_NoMedia);
return -1;
}
