mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-26 22:51:12 +00:00
198 lines
10 KiB
C++
198 lines
10 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 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_management.hpp"
|
|
|
|
namespace ams::updater {
|
|
|
|
namespace {
|
|
|
|
/* Recognize special public key (https://gist.github.com/SciresM/16b63ac1d80494522bdba2c57995257c). */
|
|
/* P = 19 */
|
|
/* Q = 1696986749729493925354392349339746171297507422986462747526968361144447230710192316397327889522451749459854070558277878297255552508603806832852079596337539247651161831569525505882103311631577368514276343192042634740927726070847704397913856975832811679847928433261678072951551065705680482548543833651752439700272736498378724153330763357721354498194000536297732323628263256733931353143625854828275237159155585342783077681713929284136658773985266864804093157854331138230313706015557050002740810464618031715670281442110238274404626065924786185264268216336867948322976979393032640085259926883014490947373494538254895109731 */
|
|
/* N = 0xFF696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696969696959 */
|
|
/* E = 0x10001 */
|
|
/* D = 6512128715229088976470211610075969347035078304643231077895577077900787352712063823560162578441773733649014439616165727455431015055675770987914713980812453585413988983206576233689754710500864883529402371292948326392791238474661859182717295176679567362482790015587820446999760239570255254879359445627372805817473978644067558931078225451477635089763009580492462097185005355990612929951162366081631888011031830742459571000203341001926135389508196521518687349554188686396554248868403128728646457247197407637887195043486221295751496667162366700477934591694110831002874992896076061627516220934290742867397720103040314639313 */
|
|
|
|
constexpr const u8 CustomPublicKey[0x100] = {
|
|
0x59, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69,
|
|
0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0x69, 0xFF,
|
|
};
|
|
|
|
}
|
|
|
|
Result BisAccessor::Initialize() {
|
|
return fs::OpenBisPartition(std::addressof(this->storage), this->partition_id);
|
|
}
|
|
|
|
void BisAccessor::Finalize() {
|
|
/* ... */
|
|
}
|
|
|
|
Result BisAccessor::Read(void *dst, size_t size, u64 offset) {
|
|
AMS_ABORT_UNLESS((offset % SectorAlignment) == 0);
|
|
return this->storage->Read(static_cast<u32>(offset), dst, size);
|
|
}
|
|
|
|
Result BisAccessor::Write(u64 offset, const void *src, size_t size) {
|
|
AMS_ABORT_UNLESS((offset % SectorAlignment) == 0);
|
|
return this->storage->Write(static_cast<u32>(offset), src, size);
|
|
}
|
|
|
|
Result BisAccessor::Write(u64 offset, size_t size, const char *bip_path, void *work_buffer, size_t work_buffer_size) {
|
|
AMS_ABORT_UNLESS((offset % SectorAlignment) == 0);
|
|
AMS_ABORT_UNLESS((work_buffer_size % SectorAlignment) == 0);
|
|
|
|
fs::FileHandle file;
|
|
R_TRY_CATCH(fs::OpenFile(std::addressof(file), bip_path, fs::OpenMode_Read)) {
|
|
R_CONVERT(fs::ResultPathNotFound, ResultInvalidBootImagePackage())
|
|
} R_END_TRY_CATCH;
|
|
ON_SCOPE_EXIT { fs::CloseFile(file); };
|
|
|
|
size_t written = 0;
|
|
while (true) {
|
|
std::memset(work_buffer, 0, work_buffer_size);
|
|
size_t read_size;
|
|
R_TRY(fs::ReadFile(std::addressof(read_size), file, written, work_buffer, work_buffer_size, fs::ReadOption()));
|
|
AMS_ABORT_UNLESS(written + read_size <= size);
|
|
|
|
size_t aligned_size = ((read_size + SectorAlignment - 1) / SectorAlignment) * SectorAlignment;
|
|
R_TRY(this->Write(offset + written, work_buffer, aligned_size));
|
|
written += read_size;
|
|
|
|
if (read_size != work_buffer_size) {
|
|
break;
|
|
}
|
|
}
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result BisAccessor::Clear(u64 offset, u64 size, void *work_buffer, size_t work_buffer_size) {
|
|
AMS_ABORT_UNLESS((offset % SectorAlignment) == 0);
|
|
AMS_ABORT_UNLESS((work_buffer_size % SectorAlignment) == 0);
|
|
|
|
std::memset(work_buffer, 0, work_buffer_size);
|
|
|
|
size_t written = 0;
|
|
while (written < size) {
|
|
size_t cur_write_size = std::min(work_buffer_size, size - written);
|
|
R_TRY(this->Write(offset + written, work_buffer, cur_write_size));
|
|
written += cur_write_size;
|
|
}
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result BisAccessor::GetHash(void *dst, u64 offset, u64 size, u64 hash_size, void *work_buffer, size_t work_buffer_size) {
|
|
AMS_ABORT_UNLESS((offset % SectorAlignment) == 0);
|
|
AMS_ABORT_UNLESS((work_buffer_size % SectorAlignment) == 0);
|
|
|
|
crypto::Sha256Generator generator;
|
|
generator.Initialize();
|
|
|
|
size_t total_read = 0;
|
|
while (total_read < hash_size) {
|
|
size_t cur_read_size = std::min(work_buffer_size, size - total_read);
|
|
size_t cur_update_size = std::min(cur_read_size, hash_size - total_read);
|
|
R_TRY(this->Read(work_buffer, cur_read_size, offset + total_read));
|
|
generator.Update(work_buffer, cur_update_size);
|
|
|
|
total_read += cur_read_size;
|
|
}
|
|
generator.GetHash(dst, hash_size);
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
size_t Boot0Accessor::GetBootloaderVersion(void *bct) {
|
|
u32 version = *reinterpret_cast<u32 *>(reinterpret_cast<uintptr_t>(bct) + BctVersionOffset);
|
|
AMS_ABORT_UNLESS(version <= BctVersionMax);
|
|
return static_cast<size_t>(version);
|
|
}
|
|
|
|
size_t Boot0Accessor::GetEksIndex(size_t bootloader_version) {
|
|
AMS_ABORT_UNLESS(bootloader_version <= BctVersionMax);
|
|
return (bootloader_version > 0) ? bootloader_version - 1 : 0;
|
|
}
|
|
|
|
void Boot0Accessor::CopyEks(void *dst_bct, const void *src_eks, size_t eks_index) {
|
|
std::memcpy(reinterpret_cast<u8 *>(dst_bct) + BctEksOffset, reinterpret_cast<const u8 *>(src_eks) + eks_index * EksEntrySize, EksBlobSize);
|
|
}
|
|
|
|
Result Boot0Accessor::UpdateEks(void *dst_bct, void *eks_work_buffer) {
|
|
size_t read_size;
|
|
R_TRY(this->Read(&read_size, eks_work_buffer, EksSize, Boot0Partition::Eks));
|
|
|
|
return this->UpdateEksManually(dst_bct, eks_work_buffer);
|
|
}
|
|
|
|
Result Boot0Accessor::UpdateEksManually(void *dst_bct, const void *src_eks) {
|
|
this->CopyEks(dst_bct, src_eks, GetEksIndex(GetBootloaderVersion(dst_bct)));
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result Boot0Accessor::PreserveAutoRcm(void *dst_bct, void *work_buffer, Boot0Partition which) {
|
|
std::memset(work_buffer, 0, BctSize);
|
|
|
|
size_t read_size;
|
|
R_TRY(this->Read(&read_size, work_buffer, BctSize, which));
|
|
|
|
/* NOTE: AutoRcm is only viable on Erista, so hardcode erista offsets. */
|
|
void *dst_pubk = reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(dst_bct) + BctPubkOffsetErista);
|
|
void *src_pubk = reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(work_buffer) + BctPubkOffsetErista);
|
|
std::memcpy(dst_pubk, src_pubk, BctPubkSize);
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result Boot0Accessor::DetectCustomPublicKey(bool *out, void *work_buffer, BootImageUpdateType boot_image_update_type) {
|
|
std::memset(work_buffer, 0, BctSize);
|
|
|
|
const size_t pubk_offset = GetBctPubkOffset(boot_image_update_type);
|
|
|
|
size_t read_size;
|
|
R_TRY(this->Read(&read_size, work_buffer, BctSize, Boot0Partition::BctNormalMain));
|
|
|
|
if (std::memcmp(reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(work_buffer) + pubk_offset), CustomPublicKey, sizeof(CustomPublicKey)) != 0) {
|
|
*out = false;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
R_TRY(this->Read(&read_size, work_buffer, BctSize, Boot0Partition::BctSafeMain));
|
|
|
|
if (std::memcmp(reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(work_buffer) + pubk_offset), CustomPublicKey, sizeof(CustomPublicKey)) != 0) {
|
|
*out = false;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
*out = true;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
|