diff options
Diffstat (limited to 'src/core')
| -rw-r--r-- | src/core/hle/service/ldr/ldr.cpp | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/core/hle/service/ldr/ldr.cpp b/src/core/hle/service/ldr/ldr.cpp index d607d985e..7804913fa 100644 --- a/src/core/hle/service/ldr/ldr.cpp +++ b/src/core/hle/service/ldr/ldr.cpp @@ -13,6 +13,36 @@ namespace Service::LDR { +namespace ErrCodes { +enum { + InvalidNRO = 52, + InvalidNRR = 53, + MissingNRRHash = 54, + MaximumNRO = 55, + MaximumNRR = 56, + AlreadyLoaded = 57, + InvalidAlignment = 81, + InvalidSize = 82, + InvalidNROAddress = 84, + InvalidNRRAddress = 85, + NotInitialized = 87, +}; +} + +constexpr ResultCode ERROR_INVALID_NRO(ErrorModule::Loader, ErrCodes::InvalidNRO); +constexpr ResultCode ERROR_INVALID_NRR(ErrorModule::Loader, ErrCodes::InvalidNRR); +constexpr ResultCode ERROR_MISSING_NRR_HASH(ErrorModule::Loader, ErrCodes::MissingNRRHash); +constexpr ResultCode ERROR_MAXIMUM_NRO(ErrorModule::Loader, ErrCodes::MaximumNRO); +constexpr ResultCode ERROR_MAXIMUM_NRR(ErrorModule::Loader, ErrCodes::MaximumNRR); +constexpr ResultCode ERROR_ALREADY_LOADED(ErrorModule::Loader, ErrCodes::AlreadyLoaded); +constexpr ResultCode ERROR_INVALID_ALIGNMENT(ErrorModule::Loader, ErrCodes::InvalidAlignment); +constexpr ResultCode ERROR_INVALID_SIZE(ErrorModule::Loader, ErrCodes::InvalidSize); +constexpr ResultCode ERROR_INVALID_NRO_ADDRESS(ErrorModule::Loader, ErrCodes::InvalidNROAddress); +constexpr ResultCode ERROR_INVALID_NRR_ADDRESS(ErrorModule::Loader, ErrCodes::InvalidNRRAddress); +constexpr ResultCode ERROR_NOT_INITIALIZED(ErrorModule::Loader, ErrCodes::NotInitialized); + +constexpr u64 MAXIMUM_LOADED_RO = 0x40; + class DebugMonitor final : public ServiceFramework<DebugMonitor> { public: explicit DebugMonitor() : ServiceFramework{"ldr:dmnt"} { @@ -75,6 +105,88 @@ public: } void LoadNrr(Kernel::HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + rp.Skip(2, false); + const VAddr nrr_addr{rp.Pop<VAddr>()}; + const u64 nrr_size{rp.Pop<u64>()}; + + 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 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 ((nrr_addr & 0xFFF) != 0) { + LOG_ERROR(Service_LDR, "NRR Address has invalid alignment (actual {:016X})!", nrr_addr); + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(ERROR_INVALID_ALIGNMENT); + return; + } + + // NRR Size is zero or causes overflow + if (nrr_addr + nrr_size <= nrr_addr || nrr_size == 0 || (nrr_size & 0xFFF) != 0) { + LOG_ERROR(Service_LDR, "NRR Size is invalid! (nrr_address={:016X}, nrr_size={:016X})", + nrr_addr, 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); + Memory::ReadBlock(nrr_addr, 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 (Core::CurrentProcess()->GetTitleID() != header.title_id) { + LOG_ERROR(Service_LDR, + "Attempting to load NRR with title ID other than current process. (actual " + "{:016X})!", + header.title_id); + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(ERROR_INVALID_NRR); + return; + } + + std::vector<SHA256Hash> hashes; + for (std::size_t i = header.hash_offset; + i < (header.hash_offset + (header.hash_count << 5)); i += 8) { + hashes.emplace_back(); + std::memcpy(hashes.back().data(), nrr_data.data() + i, sizeof(SHA256Hash)); + } + + nrr.insert_or_assign(nrr_addr, std::move(hashes)); + + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(RESULT_SUCCESS); + } + IPC::ResponseBuilder rb{ctx, 2}; rb.Push(RESULT_SUCCESS); LOG_WARNING(Service_LDR, "(STUBBED) called"); |