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https://github.com/yuzu-emu/yuzu-android
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ldr: Update NRR/NRO structs
This was based on Switchbrew pages: https://switchbrew.org/wiki/NRR https://switchbrew.org/wiki/NRO
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VolcaEM
GitHub
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2b1cc232bc
@ -39,47 +39,68 @@ constexpr ResultCode ERROR_NOT_INITIALIZED{ErrorModule::Loader, 87};
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constexpr std::size_t MAXIMUM_LOADED_RO{0x40};
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constexpr std::size_t MAXIMUM_MAP_RETRIES{0x200};
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struct Certification {
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u64_le application_id_mask;
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u64_le application_id_pattern;
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std::array<u8, 0x10> reserved;
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std::array<u8, 0x100> public_key; // Also known as modulus
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std::array<u8, 0x100> signature;
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};
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static_assert(sizeof(Certification) == 0x220, "Certification has invalid size!");
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using SHA256Hash = std::array<u8, 0x20>;
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struct NRRHeader {
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u32_le magic;
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INSERT_PADDING_BYTES(12);
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u64_le title_id_mask;
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u64_le title_id_pattern;
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INSERT_PADDING_BYTES(16);
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std::array<u8, 0x100> modulus;
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std::array<u8, 0x100> signature_1;
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std::array<u8, 0x100> signature_2;
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u64_le title_id;
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u32_le certification_signature_key_generation; // 9.0.0+
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u64_le reserved;
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Certification certification;
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std::array<u8, 0x100> signature;
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u64_le application_id;
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u32_le size;
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INSERT_PADDING_BYTES(4);
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u8 nrr_kind;
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std::array<u8, 0x3> reserved_2;
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u32_le hash_offset;
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u32_le hash_count;
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INSERT_PADDING_BYTES(8);
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u64_le reserved_3;
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// Must be dynamically allocated because, according to
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// SwitchBrew, its size is (0x20 * hash_count) and
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// it's impossible to determine the value of hash_count
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// (SwitchBrew calls it "NumHash") before runtime,
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// therefore it's not possible to calculate a SHA-256
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std::vector<SHA256Hash> NroHashList;
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};
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static_assert(sizeof(NRRHeader) == 0x350, "NRRHeader has incorrect size.");
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struct SegmentHeader {
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u32_le memory_offset;
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u32_le memory_size;
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};
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static_assert(sizeof(SegmentHeader) == 0x8, "SegmentHeader has invalid size!");
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struct NROHeader {
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INSERT_PADDING_WORDS(1);
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// Switchbrew calls this "Start" (0x10)
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u32_le unused;
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u32_le mod_offset;
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INSERT_PADDING_WORDS(2);
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u64_le padding;
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// Switchbrew calls this "Header" (0x70)
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u32_le magic;
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u32_le version;
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u32_le nro_size;
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u32_le flags;
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u32_le text_offset;
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u32_le text_size;
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u32_le ro_offset;
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u32_le ro_size;
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u32_le rw_offset;
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u32_le rw_size;
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// .text, .ro, .data (yuzu previously called it "rw" instead of "data")
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std::array<SegmentHeader, 0x3> segment_headers;
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u32_le bss_size;
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INSERT_PADDING_WORDS(1);
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u32_le reserved;
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std::array<u8, 0x20> build_id;
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INSERT_PADDING_BYTES(0x20);
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u32_le dso_handle_offset;
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u32_le unused_2;
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// .apiInfo, .dynstr, .dynsym
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std::array<SegmentHeader, 0x3> segment_headers_2;
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};
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static_assert(sizeof(NROHeader) == 0x80, "NROHeader has invalid size.");
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using SHA256Hash = std::array<u8, 0x20>;
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struct NROInfo {
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SHA256Hash hash{};
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VAddr nro_address{};
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@ -226,11 +247,11 @@ public:
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return;
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}
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if (system.CurrentProcess()->GetTitleID() != header.title_id) {
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if (system.CurrentProcess()->GetTitleID() != header.application_id) {
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LOG_ERROR(Service_LDR,
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"Attempting to load NRR with title ID other than current process. (actual "
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"{:016X})!",
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header.title_id);
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header.application_id);
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ERROR_INVALID_NRR);
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return;
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@ -348,10 +369,10 @@ public:
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ResultCode LoadNro(Kernel::Process* process, const NROHeader& nro_header, VAddr nro_addr,
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VAddr start) const {
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const VAddr text_start{start + nro_header.text_offset};
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const VAddr ro_start{start + nro_header.ro_offset};
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const VAddr data_start{start + nro_header.rw_offset};
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const VAddr bss_start{data_start + nro_header.rw_size};
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const VAddr text_start{start + nro_header.segment_headers[0].memory_offset};
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const VAddr ro_start{start + nro_header.segment_headers[1].memory_offset};
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const VAddr data_start{start + nro_header.segment_headers[2].memory_offset};
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const VAddr bss_start{data_start + nro_header.segment_headers[2].memory_size};
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const VAddr bss_end_addr{
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Common::AlignUp(bss_start + nro_header.bss_size, Kernel::Memory::PageSize)};
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@ -360,9 +381,12 @@ public:
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system.Memory().ReadBlock(src_addr, source_data.data(), source_data.size());
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system.Memory().WriteBlock(dst_addr, source_data.data(), source_data.size());
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}};
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CopyCode(nro_addr + nro_header.text_offset, text_start, nro_header.text_size);
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CopyCode(nro_addr + nro_header.ro_offset, ro_start, nro_header.ro_size);
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CopyCode(nro_addr + nro_header.rw_offset, data_start, nro_header.rw_size);
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CopyCode(nro_addr + nro_header.segment_headers[0].memory_offset, text_start,
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nro_header.segment_headers[0].memory_size);
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CopyCode(nro_addr + nro_header.segment_headers[1].memory_offset, ro_start,
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nro_header.segment_headers[1].memory_size);
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CopyCode(nro_addr + nro_header.segment_headers[2].memory_offset, data_start,
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nro_header.segment_headers[2].memory_size);
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CASCADE_CODE(process->PageTable().SetCodeMemoryPermission(
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text_start, ro_start - text_start, Kernel::Memory::MemoryPermission::ReadAndExecute));
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@ -484,9 +508,11 @@ public:
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}
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// Track the loaded NRO
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nro.insert_or_assign(*map_result, NROInfo{hash, *map_result, nro_size, bss_address,
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bss_size, header.text_size, header.ro_size,
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header.rw_size, nro_address});
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nro.insert_or_assign(*map_result,
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NROInfo{hash, *map_result, nro_size, bss_address, bss_size,
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header.segment_headers[0].memory_size,
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header.segment_headers[1].memory_size,
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header.segment_headers[2].memory_size, nro_address});
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// Invalidate JIT caches for the newly mapped process code
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system.InvalidateCpuInstructionCaches();
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@ -584,11 +610,17 @@ private:
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static bool IsValidNRO(const NROHeader& header, u64 nro_size, u64 bss_size) {
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return header.magic == Common::MakeMagic('N', 'R', 'O', '0') &&
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header.nro_size == nro_size && header.bss_size == bss_size &&
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header.ro_offset == header.text_offset + header.text_size &&
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header.rw_offset == header.ro_offset + header.ro_size &&
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nro_size == header.rw_offset + header.rw_size &&
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Common::Is4KBAligned(header.text_size) && Common::Is4KBAligned(header.ro_size) &&
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Common::Is4KBAligned(header.rw_size);
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header.segment_headers[1].memory_offset ==
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header.segment_headers[0].memory_offset +
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header.segment_headers[0].memory_size &&
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header.segment_headers[2].memory_offset ==
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header.segment_headers[1].memory_offset +
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header.segment_headers[1].memory_size &&
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nro_size == header.segment_headers[2].memory_offset +
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header.segment_headers[2].memory_size &&
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Common::Is4KBAligned(header.segment_headers[0].memory_size) &&
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Common::Is4KBAligned(header.segment_headers[1].memory_size) &&
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Common::Is4KBAligned(header.segment_headers[2].memory_size);
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}
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Core::System& system;
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};
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