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ro: add separate ro service

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This commit is contained in:
Liam 2023-12-08 21:10:42 -05:00
parent 5feda37688
commit 7ba4a8f4a3
9 changed files with 1147 additions and 634 deletions
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6
src/core/CMakeLists.txt
View file

@ -766,6 +766,12 @@ add_library(core STATIC
hle/service/kernel_helpers.h hle/service/kernel_helpers.h
hle/service/mutex.cpp hle/service/mutex.cpp
hle/service/mutex.h hle/service/mutex.h
hle/service/ro/ro_nro_utils.cpp
hle/service/ro/ro_nro_utils.h
hle/service/ro/ro_results.h
hle/service/ro/ro_types.h
hle/service/ro/ro.cpp
hle/service/ro/ro.h
hle/service/server_manager.cpp hle/service/server_manager.cpp
hle/service/server_manager.h hle/service/server_manager.h
hle/service/service.cpp hle/service/service.cpp

634
src/core/hle/service/ldr/ldr.cpp
View file

@ -1,117 +1,12 @@
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later // SPDX-License-Identifier: GPL-2.0-or-later
#include <memory>
#include <fmt/format.h>
#include <mbedtls/sha256.h>
#include "common/alignment.h"
#include "common/hex_util.h"
#include "common/scope_exit.h"
#include "core/core.h"
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/svc_results.h"
#include "core/hle/kernel/svc_types.h"
#include "core/hle/service/ipc_helpers.h"
#include "core/hle/service/ldr/ldr.h" #include "core/hle/service/ldr/ldr.h"
#include "core/hle/service/server_manager.h" #include "core/hle/service/server_manager.h"
#include "core/hle/service/service.h" #include "core/hle/service/service.h"
#include "core/loader/nro.h"
#include "core/memory.h"
namespace Service::LDR { namespace Service::LDR {
constexpr Result ERROR_INSUFFICIENT_ADDRESS_SPACE{ErrorModule::RO, 2};
[[maybe_unused]] constexpr Result ERROR_INVALID_MEMORY_STATE{ErrorModule::Loader, 51};
constexpr Result ERROR_INVALID_NRO{ErrorModule::Loader, 52};
constexpr Result ERROR_INVALID_NRR{ErrorModule::Loader, 53};
constexpr Result ERROR_MISSING_NRR_HASH{ErrorModule::Loader, 54};
constexpr Result ERROR_MAXIMUM_NRO{ErrorModule::Loader, 55};
constexpr Result ERROR_MAXIMUM_NRR{ErrorModule::Loader, 56};
constexpr Result ERROR_ALREADY_LOADED{ErrorModule::Loader, 57};
constexpr Result ERROR_INVALID_ALIGNMENT{ErrorModule::Loader, 81};
constexpr Result ERROR_INVALID_SIZE{ErrorModule::Loader, 82};
constexpr Result ERROR_INVALID_NRO_ADDRESS{ErrorModule::Loader, 84};
[[maybe_unused]] constexpr Result ERROR_INVALID_NRR_ADDRESS{ErrorModule::Loader, 85};
constexpr Result ERROR_NOT_INITIALIZED{ErrorModule::Loader, 87};
constexpr std::size_t MAXIMUM_LOADED_RO{0x40};
constexpr std::size_t MAXIMUM_MAP_RETRIES{0x200};
constexpr std::size_t TEXT_INDEX{0};
constexpr std::size_t RO_INDEX{1};
constexpr std::size_t DATA_INDEX{2};
struct NRRCertification {
u64_le application_id_mask;
u64_le application_id_pattern;
INSERT_PADDING_BYTES(0x10);
std::array<u8, 0x100> public_key; // Also known as modulus
std::array<u8, 0x100> signature;
};
static_assert(sizeof(NRRCertification) == 0x220, "NRRCertification has invalid size.");
struct NRRHeader {
u32_le magic;
u32_le certification_signature_key_generation; // 9.0.0+
INSERT_PADDING_WORDS(2);
NRRCertification certification;
std::array<u8, 0x100> signature;
u64_le application_id;
u32_le size;
u8 nrr_kind; // 7.0.0+
INSERT_PADDING_BYTES(3);
u32_le hash_offset;
u32_le hash_count;
INSERT_PADDING_WORDS(2);
};
static_assert(sizeof(NRRHeader) == 0x350, "NRRHeader has invalid size.");
struct SegmentHeader {
u32_le memory_offset;
u32_le memory_size;
};
static_assert(sizeof(SegmentHeader) == 0x8, "SegmentHeader has invalid size.");
struct NROHeader {
// Switchbrew calls this "Start" (0x10)
INSERT_PADDING_WORDS(1);
u32_le mod_offset;
INSERT_PADDING_WORDS(2);
// Switchbrew calls this "Header" (0x70)
u32_le magic;
u32_le version;
u32_le nro_size;
u32_le flags;
// .text, .ro, .data
std::array<SegmentHeader, 3> segment_headers;
u32_le bss_size;
INSERT_PADDING_WORDS(1);
std::array<u8, 0x20> build_id;
u32_le dso_handle_offset;
INSERT_PADDING_WORDS(1);
// .apiInfo, .dynstr, .dynsym
std::array<SegmentHeader, 3> segment_headers_2;
};
static_assert(sizeof(NROHeader) == 0x80, "NROHeader has invalid size.");
using SHA256Hash = std::array<u8, 0x20>;
struct NROInfo {
SHA256Hash hash{};
VAddr nro_address{};
std::size_t nro_size{};
VAddr bss_address{};
std::size_t bss_size{};
std::size_t text_size{};
std::size_t ro_size{};
std::size_t data_size{};
VAddr src_addr{};
};
static_assert(sizeof(NROInfo) == 0x60, "NROInfo has invalid size.");
class DebugMonitor final : public ServiceFramework<DebugMonitor> { class DebugMonitor final : public ServiceFramework<DebugMonitor> {
public: public:
explicit DebugMonitor(Core::System& system_) : ServiceFramework{system_, "ldr:dmnt"} { explicit DebugMonitor(Core::System& system_) : ServiceFramework{system_, "ldr:dmnt"} {
@ -158,541 +53,12 @@ public:
} }
}; };
class RelocatableObject final : public ServiceFramework<RelocatableObject> {
public:
explicit RelocatableObject(Core::System& system_) : ServiceFramework{system_, "ldr:ro"} {
// clang-format off
static const FunctionInfo functions[] = {
{0, &RelocatableObject::LoadModule, "LoadModule"},
{1, &RelocatableObject::UnloadModule, "UnloadModule"},
{2, &RelocatableObject::RegisterModuleInfo, "RegisterModuleInfo"},
{3, &RelocatableObject::UnregisterModuleInfo, "UnregisterModuleInfo"},
{4, &RelocatableObject::Initialize, "Initialize"},
{10, nullptr, "RegisterModuleInfo2"},
};
// clang-format on
RegisterHandlers(functions);
}
void RegisterModuleInfo(HLERequestContext& ctx) {
struct Parameters {
u64_le process_id;
u64_le nrr_address;
u64_le nrr_size;
};
IPC::RequestParser rp{ctx};
const auto [process_id, nrr_address, nrr_size] = rp.PopRaw<Parameters>();
LOG_DEBUG(Service_LDR,
"called with process_id={:016X}, nrr_address={:016X}, nrr_size={:016X}",
process_id, nrr_address, nrr_size);
if (!initialized) {
LOG_ERROR(Service_LDR, "LDR:RO not initialized before use!");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_NOT_INITIALIZED);
return;
}
if (nrr.size() >= MAXIMUM_LOADED_RO) {
LOG_ERROR(Service_LDR, "Loading new NRR would exceed the maximum number of loaded NRRs "
"(0x40)! Failing...");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_MAXIMUM_NRR);
return;
}
// NRR Address does not fall on 0x1000 byte boundary
if (!Common::Is4KBAligned(nrr_address)) {
LOG_ERROR(Service_LDR, "NRR Address has invalid alignment (actual {:016X})!",
nrr_address);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_ALIGNMENT);
return;
}
// NRR Size is zero or causes overflow
if (nrr_address + nrr_size <= nrr_address || nrr_size == 0 ||
!Common::Is4KBAligned(nrr_size)) {
LOG_ERROR(Service_LDR, "NRR Size is invalid! (nrr_address={:016X}, nrr_size={:016X})",
nrr_address, nrr_size);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_SIZE);
return;
}
// Read NRR data from memory
std::vector<u8> nrr_data(nrr_size);
system.ApplicationMemory().ReadBlock(nrr_address, nrr_data.data(), nrr_size);
NRRHeader header;
std::memcpy(&header, nrr_data.data(), sizeof(NRRHeader));
if (header.magic != Common::MakeMagic('N', 'R', 'R', '0')) {
LOG_ERROR(Service_LDR, "NRR did not have magic 'NRR0' (actual {:08X})!", header.magic);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_NRR);
return;
}
if (header.size != nrr_size) {
LOG_ERROR(Service_LDR,
"NRR header reported size did not match LoadNrr parameter size! "
"(header_size={:016X}, loadnrr_size={:016X})",
header.size, nrr_size);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_SIZE);
return;
}
if (system.GetApplicationProcessProgramID() != header.application_id) {
LOG_ERROR(Service_LDR,
"Attempting to load NRR with title ID other than current process. (actual "
"{:016X})!",
header.application_id);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_NRR);
return;
}
std::vector<SHA256Hash> hashes;
// Copy all hashes in the NRR (specified by hash count/hash offset) into vector.
for (std::size_t i = header.hash_offset;
i < (header.hash_offset + (header.hash_count * sizeof(SHA256Hash))); i += 8) {
SHA256Hash hash;
std::memcpy(hash.data(), nrr_data.data() + i, sizeof(SHA256Hash));
hashes.emplace_back(hash);
}
nrr.insert_or_assign(nrr_address, std::move(hashes));
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
}
void UnregisterModuleInfo(HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const auto pid = rp.Pop<u64>();
const auto nrr_address = rp.Pop<VAddr>();
LOG_DEBUG(Service_LDR, "called with pid={}, nrr_address={:016X}", pid, nrr_address);
nrr.erase(nrr_address);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
}
bool ValidateRegionForMap(Kernel::KProcessPageTable& page_table, VAddr start,
std::size_t size) const {
const std::size_t padding_size{page_table.GetNumGuardPages() * Kernel::PageSize};
Kernel::KMemoryInfo start_info;
Kernel::Svc::PageInfo page_info;
R_ASSERT(
page_table.QueryInfo(std::addressof(start_info), std::addressof(page_info), start - 1));
if (start_info.GetState() != Kernel::KMemoryState::Free) {
return {};
}
if (start_info.GetAddress() > (start - padding_size)) {
return {};
}
Kernel::KMemoryInfo end_info;
R_ASSERT(page_table.QueryInfo(std::addressof(end_info), std::addressof(page_info),
start + size));
if (end_info.GetState() != Kernel::KMemoryState::Free) {
return {};
}
return (start + size + padding_size) <= (end_info.GetAddress() + end_info.GetSize());
}
Result GetAvailableMapRegion(Kernel::KProcessPageTable& page_table, u64 size, VAddr& out_addr) {
size = Common::AlignUp(size, Kernel::PageSize);
size += page_table.GetNumGuardPages() * Kernel::PageSize * 4;
const auto is_region_available = [&](VAddr addr) {
const auto end_addr = addr + size;
while (addr < end_addr) {
if (system.ApplicationMemory().IsValidVirtualAddress(addr)) {
return false;
}
if (!page_table.Contains(out_addr, size)) {
return false;
}
if (page_table.IsInHeapRegion(out_addr, size)) {
return false;
}
if (page_table.IsInAliasRegion(out_addr, size)) {
return false;
}
addr += Kernel::PageSize;
}
return true;
};
bool succeeded = false;
const auto map_region_end =
GetInteger(page_table.GetAliasCodeRegionStart()) + page_table.GetAliasCodeRegionSize();
while (current_map_addr < map_region_end) {
if (is_region_available(current_map_addr)) {
succeeded = true;
break;
}
current_map_addr += 0x100000;
}
if (!succeeded) {
ASSERT_MSG(false, "Out of address space!");
return Kernel::ResultOutOfMemory;
}
out_addr = current_map_addr;
current_map_addr += size;
return ResultSuccess;
}
Result MapProcessCodeMemory(VAddr* out_map_location, Kernel::KProcess* process, VAddr base_addr,
u64 size) {
auto& page_table{process->GetPageTable()};
VAddr addr{};
for (std::size_t retry = 0; retry < MAXIMUM_MAP_RETRIES; retry++) {
R_TRY(GetAvailableMapRegion(page_table, size, addr));
const Result result{page_table.MapCodeMemory(addr, base_addr, size)};
if (result == Kernel::ResultInvalidCurrentMemory) {
continue;
}
R_TRY(result);
if (ValidateRegionForMap(page_table, addr, size)) {
*out_map_location = addr;
return ResultSuccess;
}
}
return ERROR_INSUFFICIENT_ADDRESS_SPACE;
}
Result MapNro(VAddr* out_map_location, Kernel::KProcess* process, VAddr nro_addr,
std::size_t nro_size, VAddr bss_addr, std::size_t bss_size, std::size_t size) {
for (std::size_t retry = 0; retry < MAXIMUM_MAP_RETRIES; retry++) {
auto& page_table{process->GetPageTable()};
VAddr addr{};
R_TRY(MapProcessCodeMemory(&addr, process, nro_addr, nro_size));
if (bss_size) {
auto block_guard = detail::ScopeExit([&] {
page_table.UnmapCodeMemory(addr + nro_size, bss_addr, bss_size);
page_table.UnmapCodeMemory(addr, nro_addr, nro_size);
});
const Result result{page_table.MapCodeMemory(addr + nro_size, bss_addr, bss_size)};
if (result == Kernel::ResultInvalidCurrentMemory) {
continue;
}
if (result.IsError()) {
return result;
}
block_guard.Cancel();
}
if (ValidateRegionForMap(page_table, addr, size)) {
*out_map_location = addr;
return ResultSuccess;
}
}
return ERROR_INSUFFICIENT_ADDRESS_SPACE;
}
Result LoadNro(Kernel::KProcess* process, const NROHeader& nro_header, VAddr nro_addr,
VAddr start) const {
const VAddr text_start{start + nro_header.segment_headers[TEXT_INDEX].memory_offset};
const VAddr ro_start{start + nro_header.segment_headers[RO_INDEX].memory_offset};
const VAddr data_start{start + nro_header.segment_headers[DATA_INDEX].memory_offset};
const VAddr bss_start{data_start + nro_header.segment_headers[DATA_INDEX].memory_size};
const VAddr bss_end_addr{
Common::AlignUp(bss_start + nro_header.bss_size, Kernel::PageSize)};
const auto CopyCode = [this](VAddr src_addr, VAddr dst_addr, u64 size) {
system.ApplicationMemory().CopyBlock(dst_addr, src_addr, size);
};
CopyCode(nro_addr + nro_header.segment_headers[TEXT_INDEX].memory_offset, text_start,
nro_header.segment_headers[TEXT_INDEX].memory_size);
CopyCode(nro_addr + nro_header.segment_headers[RO_INDEX].memory_offset, ro_start,
nro_header.segment_headers[RO_INDEX].memory_size);
CopyCode(nro_addr + nro_header.segment_headers[DATA_INDEX].memory_offset, data_start,
nro_header.segment_headers[DATA_INDEX].memory_size);
R_TRY(process->GetPageTable().SetProcessMemoryPermission(
text_start, ro_start - text_start, Kernel::Svc::MemoryPermission::ReadExecute));
R_TRY(process->GetPageTable().SetProcessMemoryPermission(
ro_start, data_start - ro_start, Kernel::Svc::MemoryPermission::Read));
return process->GetPageTable().SetProcessMemoryPermission(
data_start, bss_end_addr - data_start, Kernel::Svc::MemoryPermission::ReadWrite);
}
void LoadModule(HLERequestContext& ctx) {
struct Parameters {
u64_le process_id;
u64_le image_address;
u64_le image_size;
u64_le bss_address;
u64_le bss_size;
};
IPC::RequestParser rp{ctx};
const auto [process_id, nro_address, nro_size, bss_address, bss_size] =
rp.PopRaw<Parameters>();
LOG_DEBUG(Service_LDR,
"called with pid={:016X}, nro_addr={:016X}, nro_size={:016X}, bss_addr={:016X}, "
"bss_size={:016X}",
process_id, nro_address, nro_size, bss_address, bss_size);
if (!initialized) {
LOG_ERROR(Service_LDR, "LDR:RO not initialized before use!");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_NOT_INITIALIZED);
return;
}
if (nro.size() >= MAXIMUM_LOADED_RO) {
LOG_ERROR(Service_LDR, "Loading new NRO would exceed the maximum number of loaded NROs "
"(0x40)! Failing...");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_MAXIMUM_NRO);
return;
}
// NRO Address does not fall on 0x1000 byte boundary
if (!Common::Is4KBAligned(nro_address)) {
LOG_ERROR(Service_LDR, "NRO Address has invalid alignment (actual {:016X})!",
nro_address);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_ALIGNMENT);
return;
}
// NRO Size or BSS Size is zero or causes overflow
const auto nro_size_valid =
nro_size != 0 && nro_address + nro_size > nro_address && Common::Is4KBAligned(nro_size);
const auto bss_size_valid = nro_size + bss_size >= nro_size &&
(bss_size == 0 || bss_address + bss_size > bss_address);
if (!nro_size_valid || !bss_size_valid) {
LOG_ERROR(Service_LDR,
"NRO Size or BSS Size is invalid! (nro_address={:016X}, nro_size={:016X}, "
"bss_address={:016X}, bss_size={:016X})",
nro_address, nro_size, bss_address, bss_size);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_SIZE);
return;
}
// Read NRO data from memory
std::vector<u8> nro_data(nro_size);
system.ApplicationMemory().ReadBlock(nro_address, nro_data.data(), nro_size);
SHA256Hash hash{};
mbedtls_sha256_ret(nro_data.data(), nro_data.size(), hash.data(), 0);
// NRO Hash is already loaded
if (std::any_of(nro.begin(), nro.end(), [&hash](const std::pair<VAddr, NROInfo>& info) {
return info.second.hash == hash;
})) {
LOG_ERROR(Service_LDR, "NRO is already loaded!");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_ALREADY_LOADED);
return;
}
// NRO Hash is not in any loaded NRR
if (!IsValidNROHash(hash)) {
LOG_ERROR(Service_LDR,
"NRO hash is not present in any currently loaded NRRs (hash={})!",
Common::HexToString(hash));
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_MISSING_NRR_HASH);
return;
}
// Load and validate the NRO header
NROHeader header{};
std::memcpy(&header, nro_data.data(), sizeof(NROHeader));
if (!IsValidNRO(header, nro_size, bss_size)) {
LOG_ERROR(Service_LDR, "NRO was invalid!");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_NRO);
return;
}
// Map memory for the NRO
VAddr map_location{};
const auto map_result{MapNro(&map_location, system.ApplicationProcess(), nro_address,
nro_size, bss_address, bss_size, nro_size + bss_size)};
if (map_result != ResultSuccess) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(map_result);
}
// Load the NRO into the mapped memory
if (const auto result{
LoadNro(system.ApplicationProcess(), header, nro_address, map_location)};
result.IsError()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
}
// Track the loaded NRO
nro.insert_or_assign(map_location,
NROInfo{hash, map_location, nro_size, bss_address, bss_size,
header.segment_headers[TEXT_INDEX].memory_size,
header.segment_headers[RO_INDEX].memory_size,
header.segment_headers[DATA_INDEX].memory_size, nro_address});
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(ResultSuccess);
rb.Push(map_location);
}
Result UnmapNro(const NROInfo& info) {
// Each region must be unmapped separately to validate memory state
auto& page_table{system.ApplicationProcess()->GetPageTable()};
if (info.bss_size != 0) {
R_TRY(page_table.UnmapCodeMemory(info.nro_address + info.text_size + info.ro_size +
info.data_size,
info.bss_address, info.bss_size));
}
R_TRY(page_table.UnmapCodeMemory(info.nro_address + info.text_size + info.ro_size,
info.src_addr + info.text_size + info.ro_size,
info.data_size));
R_TRY(page_table.UnmapCodeMemory(info.nro_address + info.text_size,
info.src_addr + info.text_size, info.ro_size));
R_TRY(page_table.UnmapCodeMemory(info.nro_address, info.src_addr, info.text_size));
return ResultSuccess;
}
void UnloadModule(HLERequestContext& ctx) {
if (!initialized) {
LOG_ERROR(Service_LDR, "LDR:RO not initialized before use!");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_NOT_INITIALIZED);
return;
}
struct Parameters {
u64_le process_id;
u64_le nro_address;
};
IPC::RequestParser rp{ctx};
const auto [process_id, nro_address] = rp.PopRaw<Parameters>();
LOG_DEBUG(Service_LDR, "called with process_id={:016X}, nro_address=0x{:016X}", process_id,
nro_address);
if (!Common::Is4KBAligned(nro_address)) {
LOG_ERROR(Service_LDR, "NRO address has invalid alignment (nro_address=0x{:016X})",
nro_address);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_ALIGNMENT);
return;
}
const auto iter = nro.find(nro_address);
if (iter == nro.end()) {
LOG_ERROR(Service_LDR,
"The NRO attempting to be unmapped was not mapped or has an invalid address "
"(nro_address=0x{:016X})!",
nro_address);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ERROR_INVALID_NRO_ADDRESS);
return;
}
const auto result{UnmapNro(iter->second)};
nro.erase(iter);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
}
void Initialize(HLERequestContext& ctx) {
LOG_WARNING(Service_LDR, "(STUBBED) called");
initialized = true;
current_map_addr =
GetInteger(system.ApplicationProcess()->GetPageTable().GetAliasCodeRegionStart());
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
}
private:
bool initialized{};
std::map<VAddr, NROInfo> nro;
std::map<VAddr, std::vector<SHA256Hash>> nrr;
VAddr current_map_addr{};
bool IsValidNROHash(const SHA256Hash& hash) const {
return std::any_of(nrr.begin(), nrr.end(), [&hash](const auto& p) {
return std::find(p.second.begin(), p.second.end(), hash) != p.second.end();
});
}
static bool IsValidNRO(const NROHeader& header, u64 nro_size, u64 bss_size) {
return header.magic == Common::MakeMagic('N', 'R', 'O', '0') &&
header.nro_size == nro_size && header.bss_size == bss_size &&
header.segment_headers[RO_INDEX].memory_offset ==
header.segment_headers[TEXT_INDEX].memory_offset +
header.segment_headers[TEXT_INDEX].memory_size &&
header.segment_headers[DATA_INDEX].memory_offset ==
header.segment_headers[RO_INDEX].memory_offset +
header.segment_headers[RO_INDEX].memory_size &&
nro_size == header.segment_headers[DATA_INDEX].memory_offset +
header.segment_headers[DATA_INDEX].memory_size &&
Common::Is4KBAligned(header.segment_headers[TEXT_INDEX].memory_size) &&
Common::Is4KBAligned(header.segment_headers[RO_INDEX].memory_size) &&
Common::Is4KBAligned(header.segment_headers[DATA_INDEX].memory_size);
}
};
void LoopProcess(Core::System& system) { void LoopProcess(Core::System& system) {
auto server_manager = std::make_unique<ServerManager>(system); auto server_manager = std::make_unique<ServerManager>(system);
server_manager->RegisterNamedService("ldr:dmnt", std::make_shared<DebugMonitor>(system)); server_manager->RegisterNamedService("ldr:dmnt", std::make_shared<DebugMonitor>(system));
server_manager->RegisterNamedService("ldr:pm", std::make_shared<ProcessManager>(system)); server_manager->RegisterNamedService("ldr:pm", std::make_shared<ProcessManager>(system));
server_manager->RegisterNamedService("ldr:shel", std::make_shared<Shell>(system)); server_manager->RegisterNamedService("ldr:shel", std::make_shared<Shell>(system));
server_manager->RegisterNamedService("ldr:ro", std::make_shared<RelocatableObject>(system));
ServerManager::RunServer(std::move(server_manager)); ServerManager::RunServer(std::move(server_manager));
} }

709
src/core/hle/service/ro/ro.cpp Normal file
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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <mbedtls/sha256.h>
#include "common/scope_exit.h"
#include "core/hle/kernel/k_process.h"
#include "core/hle/service/ipc_helpers.h"
#include "core/hle/service/ro/ro.h"
#include "core/hle/service/ro/ro_nro_utils.h"
#include "core/hle/service/ro/ro_results.h"
#include "core/hle/service/ro/ro_types.h"
#include "core/hle/service/server_manager.h"
#include "core/hle/service/service.h"
namespace Service::RO {
namespace {
// Convenience definitions.
constexpr size_t MaxSessions = 0x3;
constexpr size_t MaxNrrInfos = 0x40;
constexpr size_t MaxNroInfos = 0x40;
constexpr u64 InvalidProcessId = 0xffffffffffffffffULL;
constexpr u64 InvalidContextId = 0xffffffffffffffffULL;
// Types.
using Sha256Hash = std::array<u8, 32>;
struct NroInfo {
u64 base_address;
u64 nro_heap_address;
u64 nro_heap_size;
u64 bss_heap_address;
u64 bss_heap_size;
u64 code_size;
u64 rw_size;
ModuleId module_id;
};
struct NrrInfo {
u64 nrr_heap_address;
u64 nrr_heap_size;
// Verification.
std::vector<Sha256Hash> hashes;
};
struct ProcessContext {
constexpr ProcessContext() = default;
void Initialize(Kernel::KProcess* process, u64 process_id) {
ASSERT(!m_in_use);
m_nro_in_use = {};
m_nrr_in_use = {};
m_nro_infos = {};
m_nrr_infos = {};
m_process = process;
m_process_id = process_id;
m_in_use = true;
if (m_process) {
m_process->Open();
}
}
void Finalize() {
ASSERT(m_in_use);
if (m_process) {
m_process->Close();
}
m_nro_in_use = {};
m_nrr_in_use = {};
m_nro_infos = {};
m_nrr_infos = {};
m_process = nullptr;
m_process_id = InvalidProcessId;
m_in_use = false;
}
Kernel::KProcess* GetProcess() const {
return m_process;
}
u64 GetProcessId() const {
return m_process_id;
}
bool IsFree() const {
return !m_in_use;
}
u64 GetProgramId(Kernel::KProcess* other_process) const {
// Automatically select a handle, allowing for override.
if (other_process) {
return other_process->GetProgramId();
} else if (m_process) {
return m_process->GetProgramId();
} else {
return 0;
}
}
Result GetNrrInfoByAddress(NrrInfo** out, u64 nrr_heap_address) {
for (size_t i = 0; i < MaxNrrInfos; i++) {
if (m_nrr_in_use[i] && m_nrr_infos[i].nrr_heap_address == nrr_heap_address) {
if (out != nullptr) {
*out = std::addressof(m_nrr_infos[i]);
}
R_SUCCEED();
}
}
R_THROW(RO::ResultNotRegistered);
}
Result GetFreeNrrInfo(NrrInfo** out) {
for (size_t i = 0; i < MaxNrrInfos; i++) {
if (!m_nrr_in_use[i]) {
if (out != nullptr) {
*out = std::addressof(m_nrr_infos[i]);
}
R_SUCCEED();
}
}
R_THROW(RO::ResultTooManyNrr);
}
Result GetNroInfoByAddress(NroInfo** out, u64 nro_address) {
for (size_t i = 0; i < MaxNroInfos; i++) {
if (m_nro_in_use[i] && m_nro_infos[i].base_address == nro_address) {
if (out != nullptr) {
*out = std::addressof(m_nro_infos[i]);
}
R_SUCCEED();
}
}
R_THROW(RO::ResultNotLoaded);
}
Result GetNroInfoByModuleId(NroInfo** out, const ModuleId* module_id) {
for (size_t i = 0; i < MaxNroInfos; i++) {
if (m_nro_in_use[i] && std::memcmp(std::addressof(m_nro_infos[i].module_id), module_id,
sizeof(*module_id)) == 0) {
if (out != nullptr) {
*out = std::addressof(m_nro_infos[i]);
}
R_SUCCEED();
}
}
R_THROW(RO::ResultNotLoaded);
}
Result GetFreeNroInfo(NroInfo** out) {
for (size_t i = 0; i < MaxNroInfos; i++) {
if (!m_nro_in_use[i]) {
if (out != nullptr) {
*out = std::addressof(m_nro_infos[i]);
}
R_SUCCEED();
}
}
R_THROW(RO::ResultTooManyNro);
}
Result ValidateHasNroHash(u64 base_address, const NroHeader* nro_header) const {
// Calculate hash.
Sha256Hash hash;
{
const u64 size = nro_header->GetSize();
std::vector<u8> nro_data(size);
m_process->GetMemory().ReadBlock(base_address, nro_data.data(), size);
mbedtls_sha256_ret(nro_data.data(), size, hash.data(), 0);
}
for (size_t i = 0; i < MaxNrrInfos; i++) {
// Ensure we only check NRRs that are used.
if (!m_nrr_in_use[i]) {
continue;
}
// Locate the hash within the hash list.
const auto hash_it = std::ranges::find(m_nrr_infos[i].hashes, hash);
if (hash_it == m_nrr_infos[i].hashes.end()) {
continue;
}
// The hash is valid!
R_SUCCEED();
}
R_THROW(RO::ResultNotAuthorized);
}
Result ValidateNro(ModuleId* out_module_id, u64* out_rx_size, u64* out_ro_size,
u64* out_rw_size, u64 base_address, u64 expected_nro_size,
u64 expected_bss_size) {
// Ensure we have a process to work on.
R_UNLESS(m_process != nullptr, RO::ResultInvalidProcess);
// Read the NRO header.
NroHeader header{};
m_process->GetMemory().ReadBlock(base_address, std::addressof(header), sizeof(header));
// Validate header.
R_UNLESS(header.IsMagicValid(), RO::ResultInvalidNro);
// Read sizes from header.
const u64 nro_size = header.GetSize();
const u64 text_ofs = header.GetTextOffset();
const u64 text_size = header.GetTextSize();
const u64 ro_ofs = header.GetRoOffset();
const u64 ro_size = header.GetRoSize();
const u64 rw_ofs = header.GetRwOffset();
const u64 rw_size = header.GetRwSize();
const u64 bss_size = header.GetBssSize();
// Validate sizes meet expected.
R_UNLESS(nro_size == expected_nro_size, RO::ResultInvalidNro);
R_UNLESS(bss_size == expected_bss_size, RO::ResultInvalidNro);
// Validate all sizes are aligned.
R_UNLESS(Common::IsAligned(text_size, Core::Memory::YUZU_PAGESIZE), RO::ResultInvalidNro);
R_UNLESS(Common::IsAligned(ro_size, Core::Memory::YUZU_PAGESIZE), RO::ResultInvalidNro);
R_UNLESS(Common::IsAligned(rw_size, Core::Memory::YUZU_PAGESIZE), RO::ResultInvalidNro);
R_UNLESS(Common::IsAligned(bss_size, Core::Memory::YUZU_PAGESIZE), RO::ResultInvalidNro);
// Validate sections are in order.
R_UNLESS(text_ofs <= ro_ofs, RO::ResultInvalidNro);
R_UNLESS(ro_ofs <= rw_ofs, RO::ResultInvalidNro);
// Validate sections are sequential and contiguous.
R_UNLESS(text_ofs == 0, RO::ResultInvalidNro);
R_UNLESS(text_ofs + text_size == ro_ofs, RO::ResultInvalidNro);
R_UNLESS(ro_ofs + ro_size == rw_ofs, RO::ResultInvalidNro);
R_UNLESS(rw_ofs + rw_size == nro_size, RO::ResultInvalidNro);
// Verify NRO hash.
R_TRY(this->ValidateHasNroHash(base_address, std::addressof(header)));
// Check if NRO has already been loaded.
const ModuleId* module_id = header.GetModuleId();
R_UNLESS(R_FAILED(this->GetNroInfoByModuleId(nullptr, module_id)), RO::ResultAlreadyLoaded);
// Apply patches to NRO.
// LocateAndApplyIpsPatchesToModule(module_id, static_cast<u8*>(mapped_memory), nro_size);
// Copy to output.
*out_module_id = *module_id;
*out_rx_size = text_size;
*out_ro_size = ro_size;
*out_rw_size = rw_size;
R_SUCCEED();
}
void SetNrrInfoInUse(const NrrInfo* info, bool in_use) {
ASSERT(std::addressof(m_nrr_infos[0]) <= info &&
info <= std::addressof(m_nrr_infos[MaxNrrInfos - 1]));
const size_t index = info - std::addressof(m_nrr_infos[0]);
m_nrr_in_use[index] = in_use;
}
void SetNroInfoInUse(const NroInfo* info, bool in_use) {
ASSERT(std::addressof(m_nro_infos[0]) <= info &&
info <= std::addressof(m_nro_infos[MaxNroInfos - 1]));
const size_t index = info - std::addressof(m_nro_infos[0]);
m_nro_in_use[index] = in_use;
}
private:
std::array<bool, MaxNroInfos> m_nro_in_use{};
std::array<bool, MaxNrrInfos> m_nrr_in_use{};
std::array<NroInfo, MaxNroInfos> m_nro_infos{};
std::array<NrrInfo, MaxNrrInfos> m_nrr_infos{};
Kernel::KProcess* m_process{};
u64 m_process_id{InvalidProcessId};
bool m_in_use{};
};
Result ValidateAddressAndNonZeroSize(u64 address, u64 size) {
R_UNLESS(Common::IsAligned(address, Core::Memory::YUZU_PAGESIZE), RO::ResultInvalidAddress);
R_UNLESS(size != 0, RO::ResultInvalidSize);
R_UNLESS(Common::IsAligned(size, Core::Memory::YUZU_PAGESIZE), RO::ResultInvalidSize);
R_UNLESS(address < address + size, RO::ResultInvalidSize);
R_SUCCEED();
}
Result ValidateAddressAndSize(u64 address, u64 size) {
R_UNLESS(Common::IsAligned(address, Core::Memory::YUZU_PAGESIZE), RO::ResultInvalidAddress);
R_UNLESS(Common::IsAligned(size, Core::Memory::YUZU_PAGESIZE), RO::ResultInvalidSize);
R_UNLESS(size == 0 || address < address + size, RO::ResultInvalidSize);
R_SUCCEED();
}
class RoContext {
public:
explicit RoContext() = default;
Result RegisterProcess(size_t* out_context_id, Kernel::KProcess* process, u64 process_id) {
// Validate process id.
R_UNLESS(process->GetProcessId() == process_id, RO::ResultInvalidProcess);
// Check if a process context already exists.
R_UNLESS(this->GetContextByProcessId(process_id) == nullptr, RO::ResultInvalidSession);
// Allocate a context to manage the process handle.
*out_context_id = this->AllocateContext(process, process_id);
R_SUCCEED();
}
Result ValidateProcess(size_t context_id, u64 process_id) {
const ProcessContext* ctx = this->GetContextById(context_id);
R_UNLESS(ctx != nullptr, RO::ResultInvalidProcess);
R_UNLESS(ctx->GetProcessId() == process_id, RO::ResultInvalidProcess);
R_SUCCEED();
}
void UnregisterProcess(size_t context_id) {
this->FreeContext(context_id);
}
Result RegisterModuleInfo(size_t context_id, u64 nrr_address, u64 nrr_size, NrrKind nrr_kind,
bool enforce_nrr_kind) {
// Get context.
ProcessContext* context = this->GetContextById(context_id);
ASSERT(context != nullptr);
// Validate address/size.
R_TRY(ValidateAddressAndNonZeroSize(nrr_address, nrr_size));
// Check we have space for a new NRR.
NrrInfo* nrr_info = nullptr;
R_TRY(context->GetFreeNrrInfo(std::addressof(nrr_info)));
// Ensure we have a valid process to read from.
Kernel::KProcess* process = context->GetProcess();
R_UNLESS(process != nullptr, RO::ResultInvalidProcess);
// Read NRR.
NrrHeader header{};
process->GetMemory().ReadBlock(nrr_address, std::addressof(header), sizeof(header));
// Set NRR info.
context->SetNrrInfoInUse(nrr_info, true);
nrr_info->nrr_heap_address = nrr_address;
nrr_info->nrr_heap_size = nrr_size;
// Read NRR hash list.
nrr_info->hashes.resize(header.GetNumHashes());
process->GetMemory().ReadBlock(nrr_address + header.GetHashesOffset(),
nrr_info->hashes.data(),
sizeof(Sha256Hash) * header.GetNumHashes());
R_SUCCEED();
}
Result UnregisterModuleInfo(size_t context_id, u64 nrr_address) {
// Get context.
ProcessContext* context = this->GetContextById(context_id);
ASSERT(context != nullptr);
// Validate address.
R_UNLESS(Common::IsAligned(nrr_address, Core::Memory::YUZU_PAGESIZE),
RO::ResultInvalidAddress);
// Check the NRR is loaded.
NrrInfo* nrr_info = nullptr;
R_TRY(context->GetNrrInfoByAddress(std::addressof(nrr_info), nrr_address));
// Nintendo does this unconditionally, whether or not the actual unmap succeeds.
context->SetNrrInfoInUse(nrr_info, false);
*nrr_info = {};
R_SUCCEED();
}
Result MapManualLoadModuleMemory(u64* out_address, size_t context_id, u64 nro_address,
u64 nro_size, u64 bss_address, u64 bss_size) {
// Get context.
ProcessContext* context = this->GetContextById(context_id);
ASSERT(context != nullptr);
// Validate address/size.
R_TRY(ValidateAddressAndNonZeroSize(nro_address, nro_size));
R_TRY(ValidateAddressAndSize(bss_address, bss_size));
const u64 total_size = nro_size + bss_size;
R_UNLESS(total_size >= nro_size, RO::ResultInvalidSize);
R_UNLESS(total_size >= bss_size, RO::ResultInvalidSize);
// Check we have space for a new NRO.
NroInfo* nro_info = nullptr;
R_TRY(context->GetFreeNroInfo(std::addressof(nro_info)));
nro_info->nro_heap_address = nro_address;
nro_info->nro_heap_size = nro_size;
nro_info->bss_heap_address = bss_address;
nro_info->bss_heap_size = bss_size;
// Map the NRO.
R_TRY(MapNro(std::addressof(nro_info->base_address), context->GetProcess(), nro_address,
nro_size, bss_address, bss_size, generate_random));
ON_RESULT_FAILURE {
UnmapNro(context->GetProcess(), nro_info->base_address, nro_address, nro_size,
bss_address, bss_size);
};
// Validate the NRO (parsing region extents).
u64 rx_size = 0, ro_size = 0, rw_size = 0;
R_TRY(context->ValidateNro(std::addressof(nro_info->module_id), std::addressof(rx_size),
std::addressof(ro_size), std::addressof(rw_size),
nro_info->base_address, nro_size, bss_size));
// Set NRO perms.
R_TRY(SetNroPerms(context->GetProcess(), nro_info->base_address, rx_size, ro_size,
rw_size + bss_size));
context->SetNroInfoInUse(nro_info, true);
nro_info->code_size = rx_size + ro_size;
nro_info->rw_size = rw_size;
*out_address = nro_info->base_address;
R_SUCCEED();
}
Result UnmapManualLoadModuleMemory(size_t context_id, u64 nro_address) {
// Get context.
ProcessContext* context = this->GetContextById(context_id);
ASSERT(context != nullptr);
// Validate address.
R_UNLESS(Common::IsAligned(nro_address, Core::Memory::YUZU_PAGESIZE),
RO::ResultInvalidAddress);
// Check the NRO is loaded.
NroInfo* nro_info = nullptr;
R_TRY(context->GetNroInfoByAddress(std::addressof(nro_info), nro_address));
// Unmap.
const NroInfo nro_backup = *nro_info;
{
// Nintendo does this unconditionally, whether or not the actual unmap succeeds.
context->SetNroInfoInUse(nro_info, false);
std::memset(nro_info, 0, sizeof(*nro_info));
}
R_RETURN(UnmapNro(context->GetProcess(), nro_backup.base_address,
nro_backup.nro_heap_address, nro_backup.code_size + nro_backup.rw_size,
nro_backup.bss_heap_address, nro_backup.bss_heap_size));
}
private:
std::array<ProcessContext, MaxSessions> process_contexts;
std::mt19937_64 generate_random;
// Context Helpers.
ProcessContext* GetContextById(size_t context_id) {
if (context_id == InvalidContextId) {
return nullptr;
}
ASSERT(context_id < process_contexts.size());
return std::addressof(process_contexts[context_id]);
}
ProcessContext* GetContextByProcessId(u64 process_id) {
for (size_t i = 0; i < MaxSessions; i++) {
if (process_contexts[i].GetProcessId() == process_id) {
return std::addressof(process_contexts[i]);
}
}
return nullptr;
}
size_t AllocateContext(Kernel::KProcess* process, u64 process_id) {
// Find a free process context.
for (size_t i = 0; i < MaxSessions; i++) {
ProcessContext* context = std::addressof(process_contexts[i]);
if (context->IsFree()) {
context->Initialize(process, process_id);
return i;
}
}
// Failure to find a free context is actually an abort condition.
UNREACHABLE();
}
void FreeContext(size_t context_id) {
if (ProcessContext* context = GetContextById(context_id); context != nullptr) {
context->Finalize();
}
}
};
class RoInterface {
public:
explicit RoInterface(std::shared_ptr<RoContext> ro, NrrKind nrr_kind)
: m_ro(ro), m_context_id(InvalidContextId), m_nrr_kind(nrr_kind) {}
~RoInterface() {
m_ro->UnregisterProcess(m_context_id);
}
Result MapManualLoadModuleMemory(u64* out_load_address, u64 client_pid, u64 nro_address,
u64 nro_size, u64 bss_address, u64 bss_size) {
R_TRY(m_ro->ValidateProcess(m_context_id, client_pid));
R_RETURN(m_ro->MapManualLoadModuleMemory(out_load_address, m_context_id, nro_address,
nro_size, bss_address, bss_size));
}
Result UnmapManualLoadModuleMemory(u64 client_pid, u64 nro_address) {
R_TRY(m_ro->ValidateProcess(m_context_id, client_pid));
R_RETURN(m_ro->UnmapManualLoadModuleMemory(m_context_id, nro_address));
}
Result RegisterModuleInfo(u64 client_pid, u64 nrr_address, u64 nrr_size) {
R_TRY(m_ro->ValidateProcess(m_context_id, client_pid));
R_RETURN(
m_ro->RegisterModuleInfo(m_context_id, nrr_address, nrr_size, NrrKind::User, true));
}
Result UnregisterModuleInfo(u64 client_pid, u64 nrr_address) {
R_TRY(m_ro->ValidateProcess(m_context_id, client_pid));
R_RETURN(m_ro->UnregisterModuleInfo(m_context_id, nrr_address));
}
Result RegisterProcessHandle(u64 client_pid, Kernel::KProcess* process) {
// Register the process.
R_RETURN(m_ro->RegisterProcess(std::addressof(m_context_id), process, client_pid));
}
Result RegisterProcessModuleInfo(u64 client_pid, u64 nrr_address, u64 nrr_size,
Kernel::KProcess* process) {
// Validate the process.
R_TRY(m_ro->ValidateProcess(m_context_id, client_pid));
// Register the module.
R_RETURN(m_ro->RegisterModuleInfo(m_context_id, nrr_address, nrr_size, m_nrr_kind,
m_nrr_kind == NrrKind::JitPlugin));
}
private:
std::shared_ptr<RoContext> m_ro{};
size_t m_context_id{};
NrrKind m_nrr_kind{};
};
class IRoInterface : public ServiceFramework<IRoInterface> {
public:
explicit IRoInterface(Core::System& system_, const char* name_, std::shared_ptr<RoContext> ro,
NrrKind nrr_kind)
: ServiceFramework{system_, name_}, interface {
ro, nrr_kind
} {
// clang-format off
static const FunctionInfo functions[] = {
{0, &IRoInterface::MapManualLoadModuleMemory, "MapManualLoadModuleMemory"},
{1, &IRoInterface::UnmapManualLoadModuleMemory, "UnmapManualLoadModuleMemory"},
{2, &IRoInterface::RegisterModuleInfo, "RegisterModuleInfo"},
{3, &IRoInterface::UnregisterModuleInfo, "UnregisterModuleInfo"},
{4, &IRoInterface::RegisterProcessHandle, "RegisterProcessHandle"},
{10, &IRoInterface::RegisterProcessModuleInfo, "RegisterProcessModuleInfo"},
};
// clang-format on
RegisterHandlers(functions);
}
private:
void MapManualLoadModuleMemory(HLERequestContext& ctx) {
LOG_DEBUG(Service_LDR, "(called)");
struct InputParameters {
u64 client_pid;
u64 nro_address;
u64 nro_size;
u64 bss_address;
u64 bss_size;
};
IPC::RequestParser rp{ctx};
auto params = rp.PopRaw<InputParameters>();
u64 load_address = 0;
auto result = interface.MapManualLoadModuleMemory(&load_address, ctx.GetPID(),
params.nro_address, params.nro_size,
params.bss_address, params.bss_size);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(result);
rb.Push(load_address);
}
void UnmapManualLoadModuleMemory(HLERequestContext& ctx) {
LOG_DEBUG(Service_LDR, "(called)");
struct InputParameters {
u64 client_pid;
u64 nro_address;
};
IPC::RequestParser rp{ctx};
auto params = rp.PopRaw<InputParameters>();
auto result = interface.UnmapManualLoadModuleMemory(ctx.GetPID(), params.nro_address);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
}
void RegisterModuleInfo(HLERequestContext& ctx) {
LOG_DEBUG(Service_LDR, "(called)");
struct InputParameters {
u64 client_pid;
u64 nrr_address;
u64 nrr_size;
};
IPC::RequestParser rp{ctx};
auto params = rp.PopRaw<InputParameters>();
auto result =
interface.RegisterModuleInfo(ctx.GetPID(), params.nrr_address, params.nrr_size);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
}
void UnregisterModuleInfo(HLERequestContext& ctx) {
LOG_DEBUG(Service_LDR, "(called)");
struct InputParameters {
u64 client_pid;
u64 nrr_address;
};
IPC::RequestParser rp{ctx};
auto params = rp.PopRaw<InputParameters>();
auto result = interface.UnregisterModuleInfo(ctx.GetPID(), params.nrr_address);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
}
void RegisterProcessHandle(HLERequestContext& ctx) {
LOG_DEBUG(Service_LDR, "(called)");
auto process_h = ctx.GetClientHandleTable().GetObject(ctx.GetCopyHandle(0));
auto client_pid = ctx.GetPID();
auto result = interface.RegisterProcessHandle(client_pid,
process_h->DynamicCast<Kernel::KProcess*>());
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
}
void RegisterProcessModuleInfo(HLERequestContext& ctx) {
LOG_DEBUG(Service_LDR, "(called)");
struct InputParameters {
u64 client_pid;
u64 nrr_address;
u64 nrr_size;
};
IPC::RequestParser rp{ctx};
auto params = rp.PopRaw<InputParameters>();
auto process_h = ctx.GetClientHandleTable().GetObject(ctx.GetCopyHandle(0));
auto client_pid = ctx.GetPID();
auto result =
interface.RegisterProcessModuleInfo(client_pid, params.nrr_address, params.nrr_size,
process_h->DynamicCast<Kernel::KProcess*>());
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
}
RoInterface interface;
};
} // namespace
void LoopProcess(Core::System& system) {
auto server_manager = std::make_unique<ServerManager>(system);
auto ro = std::make_shared<RoContext>();
const auto RoInterfaceFactoryForUser = [&, ro] {
return std::make_shared<IRoInterface>(system, "ldr:ro", ro, NrrKind::User);
};
const auto RoInterfaceFactoryForJitPlugin = [&, ro] {
return std::make_shared<IRoInterface>(system, "ro:1", ro, NrrKind::JitPlugin);
};
server_manager->RegisterNamedService("ldr:ro", std::move(RoInterfaceFactoryForUser));
server_manager->RegisterNamedService("ro:1", std::move(RoInterfaceFactoryForJitPlugin));
ServerManager::RunServer(std::move(server_manager));
}
} // namespace Service::RO

14
src/core/hle/service/ro/ro.h Normal file
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@ -0,0 +1,14 @@
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
namespace Core {
class System;
}
namespace Service::RO {
void LoopProcess(Core::System& system);
} // namespace Service::RO

185
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@ -0,0 +1,185 @@
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/hle/kernel/k_process.h"
#include "core/hle/service/ro/ro_nro_utils.h"
#include "core/hle/service/ro/ro_results.h"
namespace Service::RO {
namespace {
struct ProcessMemoryRegion {
u64 address;
u64 size;
};
size_t GetTotalProcessMemoryRegionSize(const ProcessMemoryRegion* regions, size_t num_regions) {
size_t total = 0;
for (size_t i = 0; i < num_regions; ++i) {
total += regions[i].size;
}
return total;
}
size_t SetupNroProcessMemoryRegions(ProcessMemoryRegion* regions, u64 nro_heap_address,
u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size) {
// Reset region count.
size_t num_regions = 0;
// We always want a region for the nro.
regions[num_regions++] = {nro_heap_address, nro_heap_size};
// If we have bss, create a region for bss.
if (bss_heap_size > 0) {
regions[num_regions++] = {bss_heap_address, bss_heap_size};
}
return num_regions;
}
Result SetProcessMemoryPermission(Kernel::KProcess* process, u64 address, u64 size,
Kernel::Svc::MemoryPermission permission) {
auto& page_table = process->GetPageTable();
// Set permission.
R_RETURN(page_table.SetProcessMemoryPermission(address, size, permission));
}
Result UnmapProcessCodeMemory(Kernel::KProcess* process, u64 process_code_address,
const ProcessMemoryRegion* regions, size_t num_regions) {
// Get the total process memory region size.
const size_t total_size = GetTotalProcessMemoryRegionSize(regions, num_regions);
auto& page_table = process->GetPageTable();
// Unmap each region in order.
size_t cur_offset = total_size;
for (size_t i = 0; i < num_regions; ++i) {
// We want to unmap in reverse order.
const auto& cur_region = regions[num_regions - 1 - i];
// Subtract to update the current offset.
cur_offset -= cur_region.size;
// Unmap.
R_TRY(page_table.UnmapCodeMemory(process_code_address + cur_offset, cur_region.address,
cur_region.size));
}
R_SUCCEED();
}
Result EnsureGuardPages(Kernel::KProcessPageTable& page_table, u64 map_address, u64 map_size) {
Kernel::KMemoryInfo memory_info;
Kernel::Svc::PageInfo page_info;
// Ensure page before mapping is unmapped.
R_TRY(page_table.QueryInfo(std::addressof(memory_info), std::addressof(page_info),
map_address - 1));
R_UNLESS(memory_info.GetSvcState() == Kernel::Svc::MemoryState::Free,
Kernel::ResultInvalidState);
// Ensure page after mapping is unmapped.
R_TRY(page_table.QueryInfo(std::addressof(memory_info), std::addressof(page_info),
map_address + map_size));
R_UNLESS(memory_info.GetSvcState() == Kernel::Svc::MemoryState::Free,
Kernel::ResultInvalidState);
// Successfully verified guard pages.
R_SUCCEED();
}
Result MapProcessCodeMemory(u64* out, Kernel::KProcess* process, const ProcessMemoryRegion* regions,
size_t num_regions, std::mt19937_64& generate_random) {
auto& page_table = process->GetPageTable();
const u64 alias_code_start =
GetInteger(page_table.GetAliasCodeRegionStart()) / Kernel::PageSize;
const u64 alias_code_size = page_table.GetAliasCodeRegionSize() / Kernel::PageSize;
for (size_t trial = 0; trial < 64; trial++) {
// Generate a new trial address.
const u64 mapped_address =
(alias_code_start + (generate_random() % alias_code_size)) * Kernel::PageSize;
const auto MapRegions = [&] {
// Map the regions in order.
u64 mapped_size = 0;
for (size_t i = 0; i < num_regions; ++i) {
// If we fail, unmap up to where we've mapped.
ON_RESULT_FAILURE {
R_ASSERT(UnmapProcessCodeMemory(process, mapped_address, regions, i));
};
// Map the current region.
R_TRY(page_table.MapCodeMemory(mapped_address + mapped_size, regions[i].address,
regions[i].size));
mapped_size += regions[i].size;
}
// If we fail, unmap all mapped regions.
ON_RESULT_FAILURE {
R_ASSERT(UnmapProcessCodeMemory(process, mapped_address, regions, num_regions));
};
// Ensure guard pages.
R_RETURN(EnsureGuardPages(page_table, mapped_address, mapped_size));
};
if (R_SUCCEEDED(MapRegions())) {
// Set the output address.
*out = mapped_address;
R_SUCCEED();
}
}
// We failed to map anything.
R_THROW(RO::ResultOutOfAddressSpace);
}
} // namespace
Result MapNro(u64* out_base_address, Kernel::KProcess* process, u64 nro_heap_address,
u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size,
std::mt19937_64& generate_random) {
// Set up the process memory regions.
std::array<ProcessMemoryRegion, 2> regions{};
const size_t num_regions = SetupNroProcessMemoryRegions(
regions.data(), nro_heap_address, nro_heap_size, bss_heap_address, bss_heap_size);
// Re-map the nro/bss as code memory in the destination process.
R_RETURN(MapProcessCodeMemory(out_base_address, process, regions.data(), num_regions,
generate_random));
}
Result SetNroPerms(Kernel::KProcess* process, u64 base_address, u64 rx_size, u64 ro_size,
u64 rw_size) {
const u64 rx_offset = 0;
const u64 ro_offset = rx_offset + rx_size;
const u64 rw_offset = ro_offset + ro_size;
R_TRY(SetProcessMemoryPermission(process, base_address + rx_offset, rx_size,
Kernel::Svc::MemoryPermission::ReadExecute));
R_TRY(SetProcessMemoryPermission(process, base_address + ro_offset, ro_size,
Kernel::Svc::MemoryPermission::Read));
R_TRY(SetProcessMemoryPermission(process, base_address + rw_offset, rw_size,
Kernel::Svc::MemoryPermission::ReadWrite));
R_SUCCEED();
}
Result UnmapNro(Kernel::KProcess* process, u64 base_address, u64 nro_heap_address,
u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size) {
// Set up the process memory regions.
std::array<ProcessMemoryRegion, 2> regions{};
const size_t num_regions = SetupNroProcessMemoryRegions(
regions.data(), nro_heap_address, nro_heap_size, bss_heap_address, bss_heap_size);
// Unmap the nro/bss.
R_RETURN(UnmapProcessCodeMemory(process, base_address, regions.data(), num_regions));
}
} // namespace Service::RO

26
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@ -0,0 +1,26 @@
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <random>
#include "common/common_types.h"
namespace Kernel {
class KProcess;
}
union Result;
namespace Service::RO {
Result MapNro(u64* out_base_address, Kernel::KProcess* process, u64 nro_heap_address,
u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size,
std::mt19937_64& generate_random);
Result SetNroPerms(Kernel::KProcess* process, u64 base_address, u64 rx_size, u64 ro_size,
u64 rw_size);
Result UnmapNro(Kernel::KProcess* process, u64 base_address, u64 nro_heap_address,
u64 nro_heap_size, u64 bss_heap_address, u64 bss_heap_size);
} // namespace Service::RO

24
src/core/hle/service/ro/ro_results.h Normal file
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@ -0,0 +1,24 @@
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/hle/result.h"
namespace Service::RO {
constexpr Result ResultOutOfAddressSpace{ErrorModule::RO, 2};
constexpr Result ResultAlreadyLoaded{ErrorModule::RO, 3};
constexpr Result ResultInvalidNro{ErrorModule::RO, 4};
constexpr Result ResultInvalidNrr{ErrorModule::RO, 6};
constexpr Result ResultTooManyNro{ErrorModule::RO, 7};
constexpr Result ResultTooManyNrr{ErrorModule::RO, 8};
constexpr Result ResultNotAuthorized{ErrorModule::RO, 9};
constexpr Result ResultInvalidNrrKind{ErrorModule::RO, 10};
constexpr Result ResultInternalError{ErrorModule::RO, 1023};
constexpr Result ResultInvalidAddress{ErrorModule::RO, 1025};
constexpr Result ResultInvalidSize{ErrorModule::RO, 1026};
constexpr Result ResultNotLoaded{ErrorModule::RO, 1028};
constexpr Result ResultNotRegistered{ErrorModule::RO, 1029};
constexpr Result ResultInvalidSession{ErrorModule::RO, 1030};
constexpr Result ResultInvalidProcess{ErrorModule::RO, 1031};
} // namespace Service::RO

181
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@ -0,0 +1,181 @@
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "common/assert.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
namespace Service::RO {
enum class NrrKind : u8 {
User = 0,
JitPlugin = 1,
Count,
};
static constexpr size_t ModuleIdSize = 0x20;
struct ModuleId {
std::array<u8, ModuleIdSize> data;
};
static_assert(sizeof(ModuleId) == ModuleIdSize);
struct NrrCertification {
static constexpr size_t RsaKeySize = 0x100;
static constexpr size_t SignedSize = 0x120;
u64 program_id_mask;
u64 program_id_pattern;
std::array<u8, 0x10> reserved_10;
std::array<u8, RsaKeySize> modulus;
std::array<u8, RsaKeySize> signature;
};
static_assert(sizeof(NrrCertification) ==
NrrCertification::RsaKeySize + NrrCertification::SignedSize);
class NrrHeader {
public:
static constexpr u32 Magic = Common::MakeMagic('N', 'R', 'R', '0');
public:
bool IsMagicValid() const {
return m_magic == Magic;
}
bool IsProgramIdValid() const {
return (m_program_id & m_certification.program_id_mask) ==
m_certification.program_id_pattern;
}
NrrKind GetNrrKind() const {
const NrrKind kind = static_cast<NrrKind>(m_nrr_kind);
ASSERT(kind < NrrKind::Count);
return kind;
}
u64 GetProgramId() const {
return m_program_id;
}
u32 GetSize() const {
return m_size;
}
u32 GetNumHashes() const {
return m_num_hashes;
}
size_t GetHashesOffset() const {
return m_hashes_offset;
}
u32 GetKeyGeneration() const {
return m_key_generation;
}
const u8* GetCertificationSignature() const {
return m_certification.signature.data();
}
const u8* GetCertificationSignedArea() const {
return reinterpret_cast<const u8*>(std::addressof(m_certification));
}
const u8* GetCertificationModulus() const {
return m_certification.modulus.data();
}
const u8* GetSignature() const {
return m_signature.data();
}
size_t GetSignedAreaSize() const {
return m_size - GetSignedAreaOffset();
}
static constexpr size_t GetSignedAreaOffset() {
return offsetof(NrrHeader, m_program_id);
}
private:
u32 m_magic;
u32 m_key_generation;
INSERT_PADDING_BYTES_NOINIT(8);
NrrCertification m_certification;
std::array<u8, 0x100> m_signature;
u64 m_program_id;
u32 m_size;
u8 m_nrr_kind; // 7.0.0+
INSERT_PADDING_BYTES_NOINIT(3);
u32 m_hashes_offset;
u32 m_num_hashes;
INSERT_PADDING_BYTES_NOINIT(8);
};
static_assert(sizeof(NrrHeader) == 0x350, "NrrHeader has wrong size");
class NroHeader {
public:
static constexpr u32 Magic = Common::MakeMagic('N', 'R', 'O', '0');
public:
bool IsMagicValid() const {
return m_magic == Magic;
}
u32 GetSize() const {
return m_size;
}
u32 GetTextOffset() const {
return m_text_offset;
}
u32 GetTextSize() const {
return m_text_size;
}
u32 GetRoOffset() const {
return m_ro_offset;
}
u32 GetRoSize() const {
return m_ro_size;
}
u32 GetRwOffset() const {
return m_rw_offset;
}
u32 GetRwSize() const {
return m_rw_size;
}
u32 GetBssSize() const {
return m_bss_size;
}
const ModuleId* GetModuleId() const {
return std::addressof(m_module_id);
}
private:
u32 m_entrypoint_insn;
u32 m_mod_offset;
INSERT_PADDING_BYTES_NOINIT(0x8);
u32 m_magic;
INSERT_PADDING_BYTES_NOINIT(0x4);
u32 m_size;
INSERT_PADDING_BYTES_NOINIT(0x4);
u32 m_text_offset;
u32 m_text_size;
u32 m_ro_offset;
u32 m_ro_size;
u32 m_rw_offset;
u32 m_rw_size;
u32 m_bss_size;
INSERT_PADDING_BYTES_NOINIT(0x4);
ModuleId m_module_id;
INSERT_PADDING_BYTES_NOINIT(0x20);
};
static_assert(sizeof(NroHeader) == 0x80, "NroHeader has wrong size");
} // namespace Service::RO

2
src/core/hle/service/service.cpp
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@ -59,6 +59,7 @@
#include "core/hle/service/prepo/prepo.h" #include "core/hle/service/prepo/prepo.h"
#include "core/hle/service/psc/psc.h" #include "core/hle/service/psc/psc.h"
#include "core/hle/service/ptm/ptm.h" #include "core/hle/service/ptm/ptm.h"
#include "core/hle/service/ro/ro.h"
#include "core/hle/service/service.h" #include "core/hle/service/service.h"
#include "core/hle/service/set/settings.h" #include "core/hle/service/set/settings.h"
#include "core/hle/service/sm/sm.h" #include "core/hle/service/sm/sm.h"
@ -270,6 +271,7 @@ Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system
kernel.RunOnGuestCoreProcess("ProcessManager", [&] { PM::LoopProcess(system); }); kernel.RunOnGuestCoreProcess("ProcessManager", [&] { PM::LoopProcess(system); });
kernel.RunOnGuestCoreProcess("psc", [&] { PSC::LoopProcess(system); }); kernel.RunOnGuestCoreProcess("psc", [&] { PSC::LoopProcess(system); });
kernel.RunOnGuestCoreProcess("ptm", [&] { PTM::LoopProcess(system); }); kernel.RunOnGuestCoreProcess("ptm", [&] { PTM::LoopProcess(system); });
kernel.RunOnGuestCoreProcess("ro", [&] { RO::LoopProcess(system); });
kernel.RunOnGuestCoreProcess("settings", [&] { Set::LoopProcess(system); }); kernel.RunOnGuestCoreProcess("settings", [&] { Set::LoopProcess(system); });
kernel.RunOnGuestCoreProcess("spl", [&] { SPL::LoopProcess(system); }); kernel.RunOnGuestCoreProcess("spl", [&] { SPL::LoopProcess(system); });
kernel.RunOnGuestCoreProcess("ssl", [&] { SSL::LoopProcess(system); }); kernel.RunOnGuestCoreProcess("ssl", [&] { SSL::LoopProcess(system); });