diff options
Diffstat (limited to '')
| -rw-r--r-- | src/core/hle/service/ldr/ldr.cpp | 95 |
1 files changed, 59 insertions, 36 deletions
diff --git a/src/core/hle/service/ldr/ldr.cpp b/src/core/hle/service/ldr/ldr.cpp index 69caf3aae..5b372b7db 100644 --- a/src/core/hle/service/ldr/ldr.cpp +++ b/src/core/hle/service/ldr/ldr.cpp @@ -39,22 +39,27 @@ constexpr ResultCode ERROR_NOT_INITIALIZED{ErrorModule::Loader, 87}; constexpr std::size_t MAXIMUM_LOADED_RO{0x40}; constexpr std::size_t MAXIMUM_MAP_RETRIES{0x200}; -struct Certification { +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; std::array<u8, 0x10> reserved; std::array<u8, 0x100> public_key; // Also known as modulus std::array<u8, 0x100> signature; }; -static_assert(sizeof(Certification) == 0x220, "Certification has invalid size!"); +static_assert(sizeof(NRRCertification) == 0x220, "Certification has invalid size!"); using SHA256Hash = std::array<u8, 0x20>; +#pragma pack(1) struct NRRHeader { u32_le magic; u32_le certification_signature_key_generation; // 9.0.0+ u64_le reserved; - Certification certification; + NRRCertification certification; std::array<u8, 0x100> signature; u64_le application_id; u32_le size; @@ -63,21 +68,19 @@ struct NRRHeader { u32_le hash_offset; u32_le hash_count; u64_le reserved_3; - - // Must be dynamically allocated because, according to - // SwitchBrew, its size is (0x20 * hash_count) and - // it's impossible to determine the value of hash_count - // (SwitchBrew calls it "NumHash") before runtime, - // therefore it's not possible to calculate a SHA-256 - std::vector<SHA256Hash> NroHashList; }; +#pragma pack() +static_assert(sizeof(NRRHeader) == 0x350, "NRRHeader has invalid size!"); +#pragma pack(1) struct SegmentHeader { u32_le memory_offset; u32_le memory_size; }; +#pragma pack() static_assert(sizeof(SegmentHeader) == 0x8, "SegmentHeader has invalid size!"); +#pragma pack(1) struct NROHeader { // Switchbrew calls this "Start" (0x10) u32_le unused; @@ -99,8 +102,10 @@ struct NROHeader { // .apiInfo, .dynstr, .dynsym std::array<SegmentHeader, 3> segment_headers_2; }; +#pragma pack() static_assert(sizeof(NROHeader) == 0x80, "NROHeader has invalid size."); +#pragma pack(1) struct NROInfo { SHA256Hash hash{}; VAddr nro_address{}; @@ -112,6 +117,8 @@ struct NROInfo { std::size_t data_size{}; VAddr src_addr{}; }; +#pragma pack() +static_assert(sizeof(NROInfo) == 0x60, "NROInfo has invalid size."); class DebugMonitor final : public ServiceFramework<DebugMonitor> { public: @@ -369,10 +376,10 @@ public: ResultCode LoadNro(Kernel::Process* process, const NROHeader& nro_header, VAddr nro_addr, VAddr start) const { - const VAddr text_start{start + nro_header.segment_headers[0].memory_offset}; - const VAddr ro_start{start + nro_header.segment_headers[1].memory_offset}; - const VAddr data_start{start + nro_header.segment_headers[2].memory_offset}; - const VAddr bss_start{data_start + nro_header.segment_headers[2].memory_size}; + 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::Memory::PageSize)}; @@ -381,12 +388,12 @@ public: system.Memory().ReadBlock(src_addr, source_data.data(), source_data.size()); system.Memory().WriteBlock(dst_addr, source_data.data(), source_data.size()); }}; - CopyCode(nro_addr + nro_header.segment_headers[0].memory_offset, text_start, - nro_header.segment_headers[0].memory_size); - CopyCode(nro_addr + nro_header.segment_headers[1].memory_offset, ro_start, - nro_header.segment_headers[1].memory_size); - CopyCode(nro_addr + nro_header.segment_headers[2].memory_offset, data_start, - nro_header.segment_headers[2].memory_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); CASCADE_CODE(process->PageTable().SetCodeMemoryPermission( text_start, ro_start - text_start, Kernel::Memory::MemoryPermission::ReadAndExecute)); @@ -510,9 +517,9 @@ public: // Track the loaded NRO nro.insert_or_assign(*map_result, NROInfo{hash, *map_result, nro_size, bss_address, bss_size, - header.segment_headers[0].memory_size, - header.segment_headers[1].memory_size, - header.segment_headers[2].memory_size, nro_address}); + header.segment_headers[TEXT_INDEX].memory_size, + header.segment_headers[RO_INDEX].memory_size, + header.segment_headers[DATA_INDEX].memory_size, nro_address}); // Invalidate JIT caches for the newly mapped process code system.InvalidateCpuInstructionCaches(); @@ -608,19 +615,35 @@ private: } 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[1].memory_offset == - header.segment_headers[0].memory_offset + - header.segment_headers[0].memory_size && - header.segment_headers[2].memory_offset == - header.segment_headers[1].memory_offset + - header.segment_headers[1].memory_size && - nro_size == header.segment_headers[2].memory_offset + - header.segment_headers[2].memory_size && - Common::Is4KBAligned(header.segment_headers[0].memory_size) && - Common::Is4KBAligned(header.segment_headers[1].memory_size) && - Common::Is4KBAligned(header.segment_headers[2].memory_size); + + const bool valid_magic = header.magic == Common::MakeMagic('N', 'R', 'O', '0'); + + const bool valid_nro_size = header.nro_size == nro_size; + + const bool valid_bss_size = header.bss_size == bss_size; + + const bool valid_ro_offset = header.segment_headers[RO_INDEX].memory_offset == + header.segment_headers[TEXT_INDEX].memory_offset + + header.segment_headers[TEXT_INDEX].memory_size; + + const bool valid_rw_offset = header.segment_headers[DATA_INDEX].memory_offset == + header.segment_headers[RO_INDEX].memory_offset + + header.segment_headers[RO_INDEX].memory_size; + + const bool valid_nro_calculated_size = + nro_size == header.segment_headers[DATA_INDEX].memory_offset + + header.segment_headers[DATA_INDEX].memory_size; + + const bool text_aligned = + Common::Is4KBAligned(header.segment_headers[TEXT_INDEX].memory_size); + + const bool ro_aligned = Common::Is4KBAligned(header.segment_headers[RO_INDEX].memory_size); + + const bool rw_aligned = + Common::Is4KBAligned(header.segment_headers[DATA_INDEX].memory_size); + + return valid_magic && valid_nro_size && valid_bss_size && valid_ro_offset && + valid_rw_offset && valid_nro_calculated_size && text_aligned && ro_aligned && rw_aligned; } Core::System& system; }; |