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Atmosphere/libraries/libstratosphere/source/updater/updater_bis_save.cpp

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/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
#include "updater_bis_save.hpp"
namespace ams::updater {
size_t BisSave::GetVerificationFlagOffset(BootModeType mode) {
switch (mode) {
case BootModeType::Normal:
return 0;
case BootModeType::Safe:
return 1;
default:
return 2;
}
}
Result BisSave::Initialize(void *work_buffer, size_t work_buffer_size) {
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AMS_ABORT_UNLESS(work_buffer_size >= SaveSize);
AMS_ABORT_UNLESS(util::IsAligned(reinterpret_cast<uintptr_t>(work_buffer), os::MemoryPageSize));
AMS_ABORT_UNLESS(util::IsAligned(work_buffer_size, 0x200));
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R_TRY(m_accessor.Initialize());
m_save_buffer = work_buffer;
return ResultSuccess();
}
void BisSave::Finalize() {
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m_accessor.Finalize();
}
Result BisSave::Load() {
size_t read_size;
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return m_accessor.Read(std::addressof(read_size), m_save_buffer, SaveSize, Boot0Partition::BctSave);
}
Result BisSave::Save() {
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return m_accessor.Write(m_save_buffer, SaveSize, Boot0Partition::BctSave);
}
bool BisSave::GetNeedsVerification(BootModeType mode) {
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return reinterpret_cast<const u8 *>(m_save_buffer)[GetVerificationFlagOffset(mode)] != 0;
}
void BisSave::SetNeedsVerification(BootModeType mode, bool needs_verification) {
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reinterpret_cast<u8 *>(m_save_buffer)[GetVerificationFlagOffset(mode)] = needs_verification ? 1 : 0;
}
}