bool
PlatformUdisks2::unmountDevice(QString path)
{
bool res = true;
QStringList partitions = getPartitionList(path);
if (partitions.empty())
{
res = doUnmount(QString("/org/freedesktop/UDisks2/block_devices/") + path);
}
else
{
foreach(QString partition, partitions)
{
if (isPartitionMounted(partition) && !doUnmount(partition))
{
res = false;
break;
}
}
}
return(res);
}
bool
PlatformUdisks2::unmountDevice(QString path)
{
bool res = true;
QStringList partitions = getPartitionList(path);
foreach(QString partition, partitions)
{
if (!doUnmount(partition))
{
res = false;
break;
}
}
return(res);
}
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::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;
}
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::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;
}
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) && (getState() != Volume::State_Pending)) {
errno = EBUSY;
return -1;
}
if (isMountpointMounted(getMountpoint())) {
SLOGW("Volume is idle but appears to be mounted - fixing");
if(doUnmount(getMountpoint(), true)) {
SLOGW("Still unmount failure, set mount state");
setState(Volume::State_Mounted);
//mCurrentlyMountedKdev = XXX
return 0;
}
}
n = getDeviceNodes((dev_t *) &deviceNodes, 6);
if (!n) {
SLOGE("Failed to get device nodes (%s)\n", strerror(errno));
return -1;
}
for (i = 0; i < n; i++) {
sprintf(devicePath, "/dev/block/vold/%d:%d", MAJOR(deviceNodes[i]),
MINOR(deviceNodes[i]));
SLOGI("%s is checking for volume %s\n", devicePath, getLabel());
errno = 0;
setState(Volume::State_Checking);
if (Fat::check(devicePath)) {
if ((errno == ENODATA) || (errno == ENOEXEC)) {
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;
}
if (!strcmp(getLabel(), "sdcard"))
{
/*
* 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, 0002, 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;
}
}
else
{
int fd = open(getMountpoint(), O_DIRECTORY, O_RDWR);
if (fd == -1) {
if(mkdir(getMountpoint(), 0777) == -1) {
SLOGE("Can't create the mount path: %s, error:%d.", getMountpoint(), errno);
break;
}
}
close(fd);
//if ( !isMountpointMounted("/mnt/sdcard") ) {
//break;
//}
if (Fat::doMount(devicePath, getMountpoint(), false, false, false, 1000, 1015, 0002, true)) {
SLOGE("%s failed to mount via VFAT (%s)\n", devicePath, strerror(errno));
continue;
}
}
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;
}
