blob: 1bec3cf10fe337acec350d9c8b5a5d4321480c39 [file] [log] [blame]
// Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cros-disks/external_mounter.h"
#include <string>
#include <base/files/file_util.h>
#include <base/logging.h>
#include <brillo/process.h>
using base::FilePath;
using std::string;
namespace {
// Expected locations of an external mount program
const char* kMountProgramPaths[] = {
"/bin/mount", "/sbin/mount", "/usr/bin/mount", "/usr/sbin/mount"
};
} // namespace
namespace cros_disks {
const char ExternalMounter::kMounterType[] = "external";
ExternalMounter::ExternalMounter(const string& source_path,
const string& target_path,
const string& filesystem_type,
const MountOptions& mount_options)
: Mounter(source_path, target_path, filesystem_type, mount_options) {
}
MountErrorType ExternalMounter::MountImpl() {
string mount_program = GetMountProgramPath();
if (mount_program.empty()) {
LOG(WARNING) << "Could not find an external mount program.";
return MOUNT_ERROR_MOUNT_PROGRAM_NOT_FOUND;
}
brillo::ProcessImpl mount_process;
mount_process.AddArg(mount_program);
mount_process.AddArg("-t");
mount_process.AddArg(filesystem_type());
string options_string = mount_options().ToString();
if (!options_string.empty()) {
mount_process.AddArg("-o");
mount_process.AddArg(options_string);
}
mount_process.AddArg(source_path());
mount_process.AddArg(target_path());
int return_code = mount_process.Run();
if (return_code != 0) {
LOG(WARNING) << "External mount program failed with a return code "
<< return_code;
return MOUNT_ERROR_MOUNT_PROGRAM_FAILED;
}
return MOUNT_ERROR_NONE;
}
string ExternalMounter::GetMountProgramPath() const {
for (size_t i = 0; i < arraysize(kMountProgramPaths); ++i) {
string path = kMountProgramPaths[i];
if (base::PathExists(FilePath(path)))
return path;
}
return string();
}
} // namespace cros_disks