blob: cd79dcdeb756764bfc46171f51da10984804ce81 [file] [log] [blame]
// Copyright 2019 The Fuchsia 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 "src/devices/bin/driver_manager/driver_host_loader_service.h"
#include <zircon/errors.h>
#include "src/lib/files/path.h"
namespace {
static constexpr std::array<const char*, 3> kDriverAllowlist{
// Check if the driver is in the allowlist.
bool InAllowlist(std::string path) {
// path may have multiple path components, e.g. if loading the asan variant of a library, and
// these should be allowed as long as the library name is in the allowlist.
std::string base = files::GetBaseName(path);
for (const char* entry : kDriverAllowlist) {
if (base == entry) {
return true;
return false;
} // namespace
// static
std::shared_ptr<DriverHostLoaderService> DriverHostLoaderService::Create(
async_dispatcher_t* dispatcher, fbl::unique_fd lib_fd, std::string name) {
// Can't use make_shared because constructor is private
return std::shared_ptr<DriverHostLoaderService>(
new DriverHostLoaderService(dispatcher, std::move(lib_fd), std::move(name)));
zx::status<zx::vmo> DriverHostLoaderService::LoadObjectImpl(std::string path) {
if (!InAllowlist(path)) {
return zx::error(ZX_ERR_ACCESS_DENIED);
return LoaderService::LoadObjectImpl(path);