mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-08 13:11:49 +00:00
359 lines
14 KiB
C++
359 lines
14 KiB
C++
/*
|
|
* 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 <exosphere.hpp>
|
|
#include "fusee_emummc.hpp"
|
|
#include "fusee_mmc.hpp"
|
|
#include "fusee_sd_card.hpp"
|
|
#include "fusee_fatal.hpp"
|
|
#include "fusee_malloc.hpp"
|
|
#include "fs/fusee_fs_api.hpp"
|
|
#include "fs/fusee_fs_storage.hpp"
|
|
|
|
namespace ams::nxboot {
|
|
|
|
namespace {
|
|
|
|
class SdCardStorage : public fs::IStorage {
|
|
public:
|
|
virtual Result Read(s64 offset, void *buffer, size_t size) override {
|
|
if (!util::IsAligned(offset, sdmmc::SectorSize) || !util::IsAligned(size, sdmmc::SectorSize)) {
|
|
ShowFatalError("SdCard: unaligned access to %" PRIx64 ", size=%" PRIx64"\n", static_cast<u64>(offset), static_cast<u64>(size));
|
|
}
|
|
|
|
return ReadSdCard(buffer, size, offset / sdmmc::SectorSize, size / sdmmc::SectorSize);
|
|
}
|
|
|
|
virtual Result Flush() override {
|
|
return ResultSuccess();
|
|
}
|
|
|
|
virtual Result GetSize(s64 *out) override {
|
|
u32 num_sectors;
|
|
R_TRY(GetSdCardMemoryCapacity(std::addressof(num_sectors)));
|
|
|
|
*out = static_cast<s64>(num_sectors) * static_cast<s64>(sdmmc::SectorSize);
|
|
return ResultSuccess();
|
|
}
|
|
|
|
virtual Result Write(s64 offset, const void *buffer, size_t size) override {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result SetSize(s64 size) override {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
};
|
|
|
|
template<sdmmc::MmcPartition Partition>
|
|
class MmcPartitionStorage : public fs::IStorage {
|
|
public:
|
|
constexpr MmcPartitionStorage() { /* ... */ }
|
|
|
|
virtual Result Read(s64 offset, void *buffer, size_t size) override {
|
|
if (!util::IsAligned(offset, sdmmc::SectorSize) || !util::IsAligned(size, sdmmc::SectorSize)) {
|
|
ShowFatalError("SdCard: unaligned access to %" PRIx64 ", size=%" PRIx64"\n", static_cast<u64>(offset), static_cast<u64>(size));
|
|
}
|
|
|
|
return ReadMmc(buffer, size, Partition, offset / sdmmc::SectorSize, size / sdmmc::SectorSize);
|
|
}
|
|
|
|
virtual Result Flush() override {
|
|
return ResultSuccess();
|
|
}
|
|
|
|
virtual Result GetSize(s64 *out) override {
|
|
u32 num_sectors;
|
|
R_TRY(GetMmcMemoryCapacity(std::addressof(num_sectors), Partition));
|
|
|
|
*out = num_sectors * sdmmc::SectorSize;
|
|
return ResultSuccess();
|
|
}
|
|
|
|
virtual Result Write(s64 offset, const void *buffer, size_t size) override {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result SetSize(s64 size) override {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
};
|
|
|
|
using MmcBoot0Storage = MmcPartitionStorage<sdmmc::MmcPartition_BootPartition1>;
|
|
using MmcUserStorage = MmcPartitionStorage<sdmmc::MmcPartition_UserData>;
|
|
|
|
constinit char g_emummc_path[0x300];
|
|
|
|
class EmummcFileStorage : public fs::IStorage {
|
|
private:
|
|
s64 m_file_size;
|
|
fs::FileHandle m_handles[64];
|
|
bool m_open[64];
|
|
int m_file_path_ofs;
|
|
private:
|
|
void EnsureFile(int id) {
|
|
if (!m_open[id]) {
|
|
/* Update path. */
|
|
g_emummc_path[m_file_path_ofs + 1] = '0' + (id % 10);
|
|
g_emummc_path[m_file_path_ofs + 0] = '0' + (id / 10);
|
|
|
|
/* Open new file. */
|
|
const Result result = fs::OpenFile(m_handles + id, g_emummc_path, fs::OpenMode_Read);
|
|
if (R_FAILED(result)) {
|
|
ShowFatalError("Failed to open emummc user %02d file: 0x%08" PRIx32 "!\n", id, result.GetValue());
|
|
}
|
|
|
|
m_open[id] = true;
|
|
}
|
|
}
|
|
public:
|
|
EmummcFileStorage(fs::FileHandle user00, int ofs) : m_file_path_ofs(ofs) {
|
|
const Result result = fs::GetFileSize(std::addressof(m_file_size), user00);
|
|
if (R_FAILED(result)) {
|
|
ShowFatalError("Failed to get emummc file size: 0x%08" PRIx32 "!\n", result.GetValue());
|
|
}
|
|
|
|
for (size_t i = 0; i < util::size(m_handles); ++i) {
|
|
m_open[i] = false;
|
|
}
|
|
|
|
m_handles[0] = user00;
|
|
m_open[0] = true;
|
|
}
|
|
|
|
virtual Result Read(s64 offset, void *buffer, size_t size) override {
|
|
int file = offset / m_file_size;
|
|
s64 subofs = offset % m_file_size;
|
|
|
|
u8 *cur_dst = static_cast<u8 *>(buffer);
|
|
|
|
for (/* ... */; size > 0; ++file) {
|
|
/* Ensure the current file is open. */
|
|
EnsureFile(file);
|
|
|
|
/* Perform the current read. */
|
|
const size_t cur_size = std::min<size_t>(m_file_size - subofs, size);
|
|
R_TRY(fs::ReadFile(m_handles[file], subofs, cur_dst, cur_size));
|
|
|
|
/* Advance. */
|
|
cur_dst += cur_size;
|
|
size -= cur_size;
|
|
subofs = 0;
|
|
}
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
virtual Result Flush() override {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result GetSize(s64 *out) override {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result Write(s64 offset, const void *buffer, size_t size) override {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result SetSize(s64 size) override {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
};
|
|
|
|
constinit SdCardStorage g_sd_card_storage;
|
|
|
|
constinit MmcBoot0Storage g_mmc_boot0_storage;
|
|
constinit MmcUserStorage g_mmc_user_storage;
|
|
|
|
constinit fs::IStorage *g_boot0_storage = nullptr;
|
|
constinit fs::IStorage *g_user_storage = nullptr;
|
|
|
|
constinit fs::SubStorage *g_package2_storage = nullptr;
|
|
|
|
struct Guid {
|
|
u32 data1;
|
|
u16 data2;
|
|
u16 data3;
|
|
u8 data4[8];
|
|
};
|
|
static_assert(sizeof(Guid) == 0x10);
|
|
|
|
struct GptHeader {
|
|
char signature[8];
|
|
u32 revision;
|
|
u32 header_size;
|
|
u32 header_crc32;
|
|
u32 reserved0;
|
|
u64 my_lba;
|
|
u64 alt_lba;
|
|
u64 first_usable_lba;
|
|
u64 last_usable_lba;
|
|
Guid disk_guid;
|
|
u64 partition_entry_lba;
|
|
u32 number_of_partition_entries;
|
|
u32 size_of_partition_entry;
|
|
u32 partition_entry_array_crc32;
|
|
u32 reserved1;
|
|
};
|
|
static_assert(sizeof(GptHeader) == 0x60);
|
|
|
|
struct GptPartitionEntry {
|
|
Guid partition_type_guid;
|
|
Guid unique_partition_guid;
|
|
u64 starting_lba;
|
|
u64 ending_lba;
|
|
u64 attributes;
|
|
char partition_name[0x48];
|
|
};
|
|
static_assert(sizeof(GptPartitionEntry) == 0x80);
|
|
|
|
struct Gpt {
|
|
GptHeader header;
|
|
u8 padding[0x1A0];
|
|
GptPartitionEntry entries[128];
|
|
};
|
|
static_assert(sizeof(Gpt) == 16_KB + 0x200);
|
|
|
|
constexpr const u16 Package2PartitionName[] = {
|
|
'B', 'C', 'P', 'K', 'G', '2', '-', '1', '-', 'N', 'o', 'r', 'm', 'a', 'l', '-', 'M', 'a', 'i', 'n', 0
|
|
};
|
|
|
|
}
|
|
|
|
void InitializeEmummc(bool emummc_enabled, const secmon::EmummcConfiguration &emummc_cfg) {
|
|
Result result;
|
|
if (emummc_enabled) {
|
|
/* Get sd card size. */
|
|
s64 sd_card_size;
|
|
if (R_FAILED((result = g_sd_card_storage.GetSize(std::addressof(sd_card_size))))) {
|
|
ShowFatalError("Failed to get sd card size: 0x%08" PRIx32 "!\n", result.GetValue());
|
|
}
|
|
|
|
if (emummc_cfg.base_cfg.type == secmon::EmummcType_Partition) {
|
|
const s64 partition_start = emummc_cfg.partition_cfg.start_sector * sdmmc::SectorSize;
|
|
g_boot0_storage = AllocateObject<fs::SubStorage>(g_sd_card_storage, partition_start, 4_MB);
|
|
g_user_storage = AllocateObject<fs::SubStorage>(g_sd_card_storage, partition_start + 8_MB, sd_card_size - (partition_start + 8_MB));
|
|
} else if (emummc_cfg.base_cfg.type == secmon::EmummcType_File) {
|
|
/* Get the base emummc path. */
|
|
std::memcpy(g_emummc_path, emummc_cfg.file_cfg.path.str, sizeof(emummc_cfg.file_cfg.path.str));
|
|
|
|
/* Get path length. */
|
|
auto len = std::strlen(g_emummc_path);
|
|
|
|
/* Append emmc. */
|
|
std::memcpy(g_emummc_path + len, "/eMMC", 6);
|
|
len += 5;
|
|
|
|
/* Open boot0. */
|
|
fs::FileHandle boot0_file;
|
|
std::memcpy(g_emummc_path + len, "/boot0", 7);
|
|
if (R_FAILED((result = fs::OpenFile(std::addressof(boot0_file), g_emummc_path, fs::OpenMode_Read)))) {
|
|
ShowFatalError("Failed to open emummc boot0 file: 0x%08" PRIx32 "!\n", result.GetValue());
|
|
}
|
|
|
|
/* Open boot1. */
|
|
g_emummc_path[len + 5] = '1';
|
|
{
|
|
fs::DirectoryEntryType entry_type;
|
|
bool is_archive;
|
|
if (R_FAILED((result = fs::GetEntryType(std::addressof(entry_type), std::addressof(is_archive), g_emummc_path)))) {
|
|
ShowFatalError("Failed to find emummc boot1 file: 0x%08" PRIx32 "!\n", result.GetValue());
|
|
}
|
|
|
|
if (entry_type != fs::DirectoryEntryType_File) {
|
|
ShowFatalError("emummc boot1 file is not a file!\n");
|
|
}
|
|
}
|
|
|
|
/* Open userdata. */
|
|
std::memcpy(g_emummc_path + len, "/00", 4);
|
|
fs::FileHandle user00_file;
|
|
if (R_FAILED((result = fs::OpenFile(std::addressof(user00_file), g_emummc_path, fs::OpenMode_Read)))) {
|
|
ShowFatalError("Failed to open emummc user %02d file: 0x%08" PRIx32 "!\n", 0, result.GetValue());
|
|
}
|
|
|
|
/* Create partitions. */
|
|
g_boot0_storage = AllocateObject<fs::FileHandleStorage>(boot0_file);
|
|
g_user_storage = AllocateObject<EmummcFileStorage>(user00_file, len + 1);
|
|
} else {
|
|
ShowFatalError("Unknown emummc type %d\n", static_cast<int>(emummc_cfg.base_cfg.type));
|
|
}
|
|
} else {
|
|
/* Initialize access to mmc. */
|
|
{
|
|
const Result result = InitializeMmc();
|
|
if (R_FAILED(result)) {
|
|
ShowFatalError("Failed to initialize mmc: 0x%08" PRIx32 "\n", result.GetValue());
|
|
}
|
|
}
|
|
|
|
/* Create storages. */
|
|
g_boot0_storage = std::addressof(g_mmc_boot0_storage);
|
|
g_user_storage = std::addressof(g_mmc_user_storage);
|
|
}
|
|
if (g_boot0_storage == nullptr) {
|
|
ShowFatalError("Failed to initialize BOOT0\n");
|
|
}
|
|
if (g_user_storage == nullptr) {
|
|
ShowFatalError("Failed to initialize Raw EMMC\n");
|
|
}
|
|
|
|
/* Read the GPT. */
|
|
Gpt *gpt = static_cast<Gpt *>(AllocateAligned(sizeof(Gpt), 0x200));
|
|
{
|
|
const Result result = g_user_storage->Read(0x200, gpt, sizeof(*gpt));
|
|
if (R_FAILED(result)) {
|
|
ShowFatalError("Failed to read GPT: 0x%08" PRIx32 "\n", result.GetValue());
|
|
}
|
|
}
|
|
|
|
/* Check the GPT. */
|
|
if (std::memcmp(gpt->header.signature, "EFI PART", 8) != 0) {
|
|
ShowFatalError("Invalid GPT signature\n");
|
|
}
|
|
if (gpt->header.number_of_partition_entries > util::size(gpt->entries)) {
|
|
ShowFatalError("Too many GPT entries\n");
|
|
}
|
|
|
|
/* Create system storage. */
|
|
for (u32 i = 0; i < gpt->header.number_of_partition_entries; ++i) {
|
|
if (gpt->entries[i].starting_lba < gpt->header.first_usable_lba) {
|
|
continue;
|
|
}
|
|
|
|
const s64 offset = INT64_C(0x200) * gpt->entries[i].starting_lba;
|
|
const u64 size = UINT64_C(0x200) * (gpt->entries[i].ending_lba + 1 - gpt->entries[i].starting_lba);
|
|
|
|
if (std::memcmp(gpt->entries[i].partition_name, Package2PartitionName, sizeof(Package2PartitionName)) == 0) {
|
|
g_package2_storage = AllocateObject<fs::SubStorage>(*g_user_storage, offset, size);
|
|
}
|
|
}
|
|
|
|
/* Check that we created package2 storage. */
|
|
if (g_package2_storage == nullptr) {
|
|
ShowFatalError("Failed to initialize Package2\n");
|
|
}
|
|
}
|
|
|
|
Result ReadBoot0(s64 offset, void *dst, size_t size) {
|
|
return g_boot0_storage->Read(offset, dst, size);
|
|
}
|
|
|
|
Result ReadPackage2(s64 offset, void *dst, size_t size) {
|
|
return g_package2_storage->Read(offset, dst, size);
|
|
}
|
|
|
|
}
|