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ro: implement NRR signature checks

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This commit is contained in:
Michael Scire 2020-02-23 18:07:14 -08:00
parent 577e3936a6
commit 1cc9fa39b4
1 changed files with 47 additions and 8 deletions
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55
libstratosphere/include/stratosphere/ro/ro_types.hpp
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@ -31,18 +31,27 @@ namespace ams::ro {
}; };
static_assert(sizeof(ModuleId) == sizeof(LoaderModuleInfo::build_id), "ModuleId definition!"); static_assert(sizeof(ModuleId) == sizeof(LoaderModuleInfo::build_id), "ModuleId definition!");
struct NrrCertification {
static constexpr size_t RsaKeySize = 0x100;
static constexpr size_t SignedSize = 0x120;
u64 program_id_mask;
u64 program_id_pattern;
u8 reserved_10[0x10];
u8 modulus[RsaKeySize];
u8 signature[RsaKeySize];
};
static_assert(sizeof(NrrCertification) == NrrCertification::RsaKeySize + NrrCertification::SignedSize);
class NrrHeader { class NrrHeader {
public: public:
static constexpr u32 Magic = util::FourCC<'N','R','R','0'>::Code; static constexpr u32 Magic = util::FourCC<'N','R','R','0'>::Code;
private: private:
u32 magic; u32 magic;
u8 reserved_04[0xC]; u32 key_generation;
u64 program_id_mask; u8 reserved_08[0x08];
u64 program_id_pattern; NrrCertification certification;
u8 reserved_20[0x10]; u8 signature[0x100];
u8 modulus[0x100];
u8 fixed_key_signature[0x100];
u8 nrr_signature[0x100];
ncm::ProgramId program_id; ncm::ProgramId program_id;
u32 size; u32 size;
u8 type; /* 7.0.0+ */ u8 type; /* 7.0.0+ */
@ -56,7 +65,7 @@ namespace ams::ro {
} }
bool IsProgramIdValid() const { bool IsProgramIdValid() const {
return (static_cast<u64>(this->program_id) & this->program_id_mask) == this->program_id_pattern; return (static_cast<u64>(this->program_id) & this->certification.program_id_mask) == this->certification.program_id_pattern;
} }
ModuleType GetType() const { ModuleType GetType() const {
@ -80,9 +89,39 @@ namespace ams::ro {
uintptr_t GetHashes() const { uintptr_t GetHashes() const {
return reinterpret_cast<uintptr_t>(this) + this->hashes_offset; return reinterpret_cast<uintptr_t>(this) + this->hashes_offset;
} }
u32 GetKeyGeneration() const {
return this->key_generation;
}
const u8 *GetCertificationSignature() const {
return this->certification.signature;
}
const u8 *GetCertificationSignedArea() const {
return reinterpret_cast<const u8 *>(std::addressof(this->certification));
}
const u8 *GetCertificationModulus() const {
return this->certification.modulus;
}
const u8 *GetSignature() const {
return this->signature;
}
const u8 *GetSignedArea() const {
return reinterpret_cast<const u8 *>(std::addressof(this->program_id));
}
size_t GetSignedAreaSize() const;
}; };
static_assert(sizeof(NrrHeader) == 0x350, "NrrHeader definition!"); static_assert(sizeof(NrrHeader) == 0x350, "NrrHeader definition!");
inline size_t NrrHeader::GetSignedAreaSize() const {
return this->size - OFFSETOF(NrrHeader, program_id);
}
class NroHeader { class NroHeader {
public: public:
static constexpr u32 Magic = util::FourCC<'N','R','O','0'>::Code; static constexpr u32 Magic = util::FourCC<'N','R','O','0'>::Code;