159 lines
4.2 KiB
C++
Executable File
159 lines
4.2 KiB
C++
Executable File
/*
|
|
* Copyright (C) 2010 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <dirent.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include <linux/fs.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/mount.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include <linux/kdev_t.h>
|
|
|
|
#include <android-base/logging.h>
|
|
#include <android-base/stringprintf.h>
|
|
#include <selinux/selinux.h>
|
|
|
|
#include <logwrap/logwrap.h>
|
|
|
|
#include "Utils.h"
|
|
#include "Ntfs.h"
|
|
#include "VoldUtil.h"
|
|
|
|
using android::base::StringPrintf;
|
|
|
|
namespace android {
|
|
namespace vold {
|
|
namespace ntfs {
|
|
|
|
static const char* kMkfsPath = "/system/bin/mkntfs";
|
|
static const char* kFsckPath = "/system/bin/ntfsfix";
|
|
static const char* kMountPath = "/system/bin/ntfs-3g";
|
|
|
|
bool IsSupported() {
|
|
return access(kMkfsPath, X_OK) == 0 && access(kFsckPath, X_OK) == 0 &&
|
|
access(kMountPath, X_OK) == 0;
|
|
}
|
|
|
|
status_t Check(const std::string& source) {
|
|
int rc = 0;
|
|
do {
|
|
std::vector<std::string> cmd;
|
|
cmd.push_back(kFsckPath);
|
|
cmd.push_back(source);
|
|
|
|
// Ntfs devices are currently always untrusted
|
|
rc = ForkExecvp(cmd, nullptr, sFsckUntrustedContext);
|
|
|
|
if (rc < 0) {
|
|
LOG(ERROR) << "Filesystem check failed due to logwrap error";
|
|
errno = EIO;
|
|
return -1;
|
|
}
|
|
|
|
switch (rc) {
|
|
case 0:
|
|
LOG(INFO) << "Filesystem check completed OK";
|
|
return 0;
|
|
|
|
default:
|
|
LOG(ERROR) << "Filesystem check failed (unknown exit code " << rc << ")";
|
|
errno = EIO;
|
|
return -1;
|
|
}
|
|
} while (0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
status_t Mount(const std::string& source, const std::string& target, bool ro, bool remount,
|
|
bool executable, int ownerUid, int ownerGid, int permMask, bool createLost) {
|
|
int rc;
|
|
|
|
auto mountData =
|
|
android::base::StringPrintf("utf8,uid=%d,gid=%d,fmask=%o,dmask=%o,shortname=mixed,nodev,"
|
|
"nosuid,dirsync,big_writes,noatime,delay_mtime=120%s",
|
|
ownerUid, ownerGid, permMask, permMask, (ro ? ",ro" : " "));
|
|
|
|
std::vector<std::string> cmd;
|
|
cmd.push_back(kMountPath);
|
|
cmd.push_back("-o");
|
|
cmd.push_back(mountData);
|
|
cmd.push_back(source);
|
|
cmd.push_back(target);
|
|
|
|
rc = ForkExecvp(cmd);
|
|
|
|
if (rc == 0 && createLost) {
|
|
auto lost_path = android::base::StringPrintf("%s/LOST.DIR", target.c_str());
|
|
if (access(lost_path.c_str(), F_OK)) {
|
|
/*
|
|
* Create a LOST.DIR in the root so we have somewhere to put
|
|
* lost cluster chains (fsck_msdos doesn't currently do this)
|
|
*/
|
|
if (mkdir(lost_path.c_str(), 0755)) {
|
|
PLOG(ERROR) << "Unable to create LOST.DIR";
|
|
}
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
status_t Format(const std::string& source, unsigned long numSectors) {
|
|
std::vector<std::string> cmd;
|
|
cmd.push_back(kMkfsPath);
|
|
cmd.push_back("-f");
|
|
cmd.push_back("-L");
|
|
cmd.push_back("android");
|
|
|
|
if (numSectors) {
|
|
cmd.push_back(StringPrintf("%lu", numSectors));
|
|
}
|
|
|
|
cmd.push_back(source);
|
|
|
|
int rc = ForkExecvp(cmd);
|
|
if (rc < 0) {
|
|
LOG(ERROR) << "Filesystem format failed due to logwrap error";
|
|
errno = EIO;
|
|
return -1;
|
|
}
|
|
|
|
if (rc == 0) {
|
|
LOG(INFO) << "Filesystem formatted OK";
|
|
return 0;
|
|
} else {
|
|
LOG(ERROR) << "Format failed (unknown exit code " << rc << ")";
|
|
errno = EIO;
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
} // namespace ntfs
|
|
} // namespace vold
|
|
} // namespace android
|