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PPU Analyzer: Firmware/import caller analysis and KLIC finding pass

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This commit is contained in:
Elad 2025-02-23 19:04:14 +02:00
parent e97bfecb7f
commit 207ee59acd
14 changed files with 380 additions and 96 deletions
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35
rpcs3/Crypto/unself.cpp
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@ -1045,11 +1045,8 @@ bool SELFDecrypter::DecryptNPDRM(u8 *metadata, u32 metadata_size)
}
else if (npd->license == 3) // Free license.
{
// Use klicensee if available.
if (key_v.GetKlicenseeKey())
memcpy(npdrm_key, key_v.GetKlicenseeKey(), 0x10);
else
memcpy(npdrm_key, NP_KLIC_FREE, 0x10);
// Use klicensee if available. (may be set to NP_KLIC_FREE if none is set)
std::memcpy(npdrm_key, key_v.GetKlicenseeKey(), 0x10);
}
else
{
@ -1085,7 +1082,7 @@ const NPD_HEADER* SELFDecrypter::GetNPDHeader() const
return nullptr;
}
bool SELFDecrypter::LoadMetadata(u8* klic_key)
bool SELFDecrypter::LoadMetadata(const u8* klic_key)
{
aes_context aes;
const auto metadata_info = std::make_unique<u8[]>(sizeof(meta_info));
@ -1319,11 +1316,11 @@ static bool IsDebugSelf(const fs::file& f)
return false;
}
static bool CheckDebugSelf(fs::file& s)
static fs::file CheckDebugSelf(const fs::file& s)
{
if (s.size() < 0x18)
{
return false;
return {};
}
// Get the key version.
@ -1352,15 +1349,14 @@ static bool CheckDebugSelf(fs::file& s)
e.write(buf, size);
}
s = std::move(e);
return true;
return e;
}
// Leave the file untouched.
return false;
return {};
}
fs::file decrypt_self(fs::file elf_or_self, u8* klic_key, SelfAdditionalInfo* out_info, bool require_encrypted)
fs::file decrypt_self(const fs::file& elf_or_self, const u8* klic_key, SelfAdditionalInfo* out_info)
{
if (out_info)
{
@ -1377,10 +1373,10 @@ fs::file decrypt_self(fs::file elf_or_self, u8* klic_key, SelfAdditionalInfo* ou
// Check SELF header first. Check for a debug SELF.
if (elf_or_self.size() >= 4 && elf_or_self.read<u32>() == "SCE\0"_u32)
{
if (CheckDebugSelf(elf_or_self))
if (fs::file res = CheckDebugSelf(elf_or_self))
{
// TODO: Decrypt
return elf_or_self;
return res;
}
// Check the ELF file class (32 or 64 bit).
@ -1399,14 +1395,14 @@ fs::file decrypt_self(fs::file elf_or_self, u8* klic_key, SelfAdditionalInfo* ou
// Load and decrypt the SELF file metadata.
if (!self_dec.LoadMetadata(klic_key))
{
self_log.error("Failed to load SELF file metadata!");
(klic_key ? self_log.notice : self_log.error)("Failed to load SELF file metadata!");
return fs::file{};
}
// Decrypt the SELF file data.
if (!self_dec.DecryptData())
{
self_log.error("Failed to decrypt SELF file data!");
(klic_key ? self_log.notice : self_log.error)("Failed to decrypt SELF file data!");
return fs::file{};
}
@ -1414,12 +1410,7 @@ fs::file decrypt_self(fs::file elf_or_self, u8* klic_key, SelfAdditionalInfo* ou
return self_dec.MakeElf(isElf32);
}
if (require_encrypted)
{
return {};
}
return elf_or_self;
return {};
}
bool verify_npdrm_self_headers(const fs::file& self, u8* klic_key, NPD_HEADER* npd_out)