mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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118 lines
4.7 KiB
C++
118 lines
4.7 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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#include "fsa/fs_mount_utils.hpp"
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#include "impl/fs_event_notifier_object_adapter.hpp"
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namespace ams::fs {
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namespace {
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constexpr inline const char AtmosphereErrorReportDirectory[] = "/atmosphere/erpt_reports";
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/* NOTE: Nintendo does not attach a generator to a mounted SD card filesystem. */
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/* However, it is desirable for homebrew to be able to access SD via common path. */
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class SdCardCommonMountNameGenerator : public fsa::ICommonMountNameGenerator, public impl::Newable {
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public:
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explicit SdCardCommonMountNameGenerator() { /* ... */ }
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virtual Result GenerateCommonMountName(char *dst, size_t dst_size) override {
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/* Determine how much space we need. */
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const size_t needed_size = strnlen(impl::SdCardFileSystemMountName, MountNameLengthMax) + 2;
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AMS_ABORT_UNLESS(dst_size >= needed_size);
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/* Generate the name. */
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const auto size = util::SNPrintf(dst, dst_size, "%s:", impl::SdCardFileSystemMountName);
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AMS_ASSERT(static_cast<size_t>(size) == needed_size - 1);
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AMS_UNUSED(size);
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return ResultSuccess();
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}
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};
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}
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Result MountSdCard(const char *name) {
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/* Validate the mount name. */
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R_TRY(impl::CheckMountNameAllowingReserved(name));
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/* Open the SD card. This uses libnx bindings. */
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FsFileSystem fs;
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R_TRY(fsOpenSdCardFileSystem(std::addressof(fs)));
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/* Allocate a new filesystem wrapper. */
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auto fsa = std::make_unique<RemoteFileSystem>(fs);
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R_UNLESS(fsa != nullptr, fs::ResultAllocationFailureInSdCardA());
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/* Allocate a new mountname generator. */
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/* NOTE: Nintendo does not attach a generator. */
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auto generator = std::make_unique<SdCardCommonMountNameGenerator>();
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R_UNLESS(generator != nullptr, fs::ResultAllocationFailureInSdCardA());
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/* Register. */
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return fsa::Register(name, std::move(fsa), std::move(generator));
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}
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Result MountSdCardErrorReportDirectoryForAtmosphere(const char *name) {
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/* Validate the mount name. */
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R_TRY(impl::CheckMountName(name));
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/* Open the SD card. This uses libnx bindings. */
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FsFileSystem fs;
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R_TRY(fsOpenSdCardFileSystem(std::addressof(fs)));
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/* Allocate a new filesystem wrapper. */
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std::unique_ptr<fsa::IFileSystem> fsa = std::make_unique<RemoteFileSystem>(fs);
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R_UNLESS(fsa != nullptr, fs::ResultAllocationFailureInSdCardA());
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/* Ensure that the error report directory exists. */
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R_TRY(fssystem::EnsureDirectoryRecursively(fsa.get(), AtmosphereErrorReportDirectory));
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/* Create a subdirectory filesystem. */
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auto subdir_fs = std::make_unique<fssystem::SubDirectoryFileSystem>(std::move(fsa), AtmosphereErrorReportDirectory);
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R_UNLESS(subdir_fs != nullptr, fs::ResultAllocationFailureInSdCardA());
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/* Register. */
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return fsa::Register(name, std::move(subdir_fs));
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}
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Result OpenSdCardDetectionEventNotifier(std::unique_ptr<IEventNotifier> *out) {
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/* Try to open an event notifier. */
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FsEventNotifier notifier;
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AMS_FS_R_TRY(fsOpenSdCardDetectionEventNotifier(std::addressof(notifier)));
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/* Create an event notifier adapter. */
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auto adapter = std::make_unique<impl::RemoteEventNotifierObjectAdapter>(notifier);
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R_UNLESS(adapter != nullptr, fs::ResultAllocationFailureInSdCardB());
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*out = std::move(adapter);
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return ResultSuccess();
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}
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bool IsSdCardInserted() {
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/* Open device operator. */
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FsDeviceOperator device_operator;
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AMS_FS_R_ABORT_UNLESS(::fsOpenDeviceOperator(std::addressof(device_operator)));
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ON_SCOPE_EXIT { ::fsDeviceOperatorClose(std::addressof(device_operator)); };
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/* Get SD card inserted. */
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bool inserted;
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AMS_FS_R_ABORT_UNLESS(::fsDeviceOperatorIsSdCardInserted(std::addressof(device_operator), std::addressof(inserted)));
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return inserted;
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}
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}
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