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/*
* Copyright (C) 2015 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 <sys/mount.h>
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
#include <logwrap/logwrap.h>
#include "Ntfs.h"
#include "Utils.h"
using android::base::StringPrintf;
namespace android {
namespace vold {
namespace ntfs {
static const char* kMkfsPath = "/system/bin/mkfs.ntfs";
static const char* kFsckPath = "/system/bin/fsck.ntfs";
static const char* kMountPath = "/system/bin/mount.ntfs";
bool IsSupported() {
return access(kMkfsPath, X_OK) == 0
&& access(kFsckPath, X_OK) == 0
&& access(kMountPath, X_OK) == 0
&& IsFilesystemSupported("ntfs");
}
status_t Check(const std::string& source) {
std::vector<std::string> cmd;
cmd.push_back(kFsckPath);
cmd.push_back("-n");
cmd.push_back(source);
int rc = ForkExecvp(cmd, nullptr, sFsckUntrustedContext);
if (rc == 0) {
LOG(INFO) << "Check OK";
return 0;
} else {
LOG(ERROR) << "Check failed (code " << rc << ")";
errno = EIO;
return -1;
}
}
status_t Mount(const std::string& source, const std::string& target, int ownerUid, int ownerGid,
int permMask) {
auto mountData = android::base::StringPrintf("utf8,uid=%d,gid=%d,fmask=%o,dmask=%o,"
"shortname=mixed,nodev,nosuid,dirsync,noatime,"
"noexec", ownerUid, ownerGid, permMask, permMask);
std::vector<std::string> cmd;
cmd.push_back(kMountPath);
cmd.push_back("-o");
cmd.push_back(mountData.c_str());
cmd.push_back(source.c_str());
cmd.push_back(target.c_str());
int rc = ForkExecvp(cmd);
if (rc == 0) {
LOG(INFO) << "Mount OK";
return 0;
} else {
LOG(ERROR) << "Mount failed (code " << rc << ")";
errno = EIO;
return -1;
}
}
status_t Format(const std::string& source) {
std::vector<std::string> cmd;
cmd.push_back(kMkfsPath);
cmd.push_back(source);
int rc = ForkExecvp(cmd);
if (rc == 0) {
LOG(INFO) << "Format OK";
return 0;
} else {
LOG(ERROR) << "Format failed (code " << rc << ")";
errno = EIO;
return -1;
}
return 0;
}
} // namespace ntfs
} // namespace vold
} // namespace android
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