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https://github.com/Atmosphere-NX/Atmosphere.git
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102 lines
4.3 KiB
C++
102 lines
4.3 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 "sysupdater_apply_manager.hpp"
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namespace ams::mitm::sysupdater {
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namespace {
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alignas(os::MemoryPageSize) u8 g_boot_image_update_buffer[64_KB];
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updater::BootImageUpdateType GetBootImageUpdateType() {
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int boot_image_update_type;
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auto size = settings::fwdbg::GetSettingsItemValue(std::addressof(boot_image_update_type), sizeof(boot_image_update_type), "systeminitializer", "boot_image_update_type");
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if (size != sizeof(boot_image_update_type)) {
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return updater::BootImageUpdateType::Erista;
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}
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return updater::GetBootImageUpdateType(boot_image_update_type);
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}
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Result MarkPreCommitForBootImages() {
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/* Set verification required for both normal and safe mode. */
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R_TRY(updater::MarkVerifyingRequired(updater::BootModeType::Normal, g_boot_image_update_buffer, sizeof(g_boot_image_update_buffer)));
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R_TRY(updater::MarkVerifyingRequired(updater::BootModeType::Safe, g_boot_image_update_buffer, sizeof(g_boot_image_update_buffer)));
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/* Pre-commit is now marked. */
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return ResultSuccess();
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}
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Result UpdateBootImages() {
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/* Define a helper to update the images. */
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auto UpdateBootImageImpl = [](updater::BootModeType boot_mode, updater::BootImageUpdateType boot_image_update_type) -> Result {
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/* Get the boot image package id. */
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ncm::SystemDataId boot_image_package_id = {};
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R_TRY_CATCH(updater::GetBootImagePackageId(std::addressof(boot_image_package_id), boot_mode, g_boot_image_update_buffer, sizeof(g_boot_image_update_buffer))) {
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R_CATCH(updater::ResultBootImagePackageNotFound) {
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/* Nintendo simply falls through when the package is not found. */
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}
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} R_END_TRY_CATCH;
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/* Update the boot images. */
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R_TRY_CATCH(updater::UpdateBootImagesFromPackage(boot_image_package_id, boot_mode, g_boot_image_update_buffer, sizeof(g_boot_image_update_buffer), boot_image_update_type)) {
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R_CATCH(updater::ResultBootImagePackageNotFound) {
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/* Nintendo simply falls through when the package is not found. */
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}
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} R_END_TRY_CATCH;
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/* Mark the images verified. */
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R_TRY(updater::MarkVerified(boot_mode, g_boot_image_update_buffer, sizeof(g_boot_image_update_buffer)));
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/* The boot images are updated. */
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return ResultSuccess();
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};
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/* Get the boot image update type. */
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auto boot_image_update_type = GetBootImageUpdateType();
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/* Update boot images for safe mode. */
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R_TRY(UpdateBootImageImpl(updater::BootModeType::Safe, boot_image_update_type));
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/* Update boot images for normal mode. */
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R_TRY(UpdateBootImageImpl(updater::BootModeType::Normal, boot_image_update_type));
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/* Both sets of images are updated. */
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return ResultSuccess();
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}
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}
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Result SystemUpdateApplyManager::ApplyPackageTask(ncm::PackageSystemDowngradeTask *task) {
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/* Lock the apply mutex. */
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std::scoped_lock lk(this->apply_mutex);
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/* NOTE: Here, Nintendo creates a system report for the update. */
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/* Mark boot images to note that we're updating. */
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R_TRY(MarkPreCommitForBootImages());
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/* Commit the task. */
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R_TRY(task->Commit());
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/* Update the boot images. */
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R_TRY(UpdateBootImages());
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return ResultSuccess();
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}
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}
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