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// 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
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