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Crypto: fix sprx/self check in npDrm and edata fixes

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This commit is contained in:
Jake 2017-03-22 06:13:20 -05:00 committed by Ivan
parent 44e62c5c92
commit 65696bf6a3
8 changed files with 109 additions and 58 deletions
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2
rpcs3/Crypto/key_vault.h
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@ -159,7 +159,7 @@ class KeyVault
std::vector<SELF_KEY> sk_LDR_arr;
std::vector<SELF_KEY> sk_UNK7_arr;
std::vector<SELF_KEY> sk_NPDRM_arr;
u8 klicensee_key[0x10];
u8 klicensee_key[0x10] = {};
public:
KeyVault();

3
rpcs3/Crypto/unedat.cpp
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@ -912,8 +912,7 @@ bool EDATADecrypter::ReadHeader()
if (dec_key == std::array<u8, 0x10>{0})
{
LOG_ERROR(LOADER, "EDAT: A valid RAP file is needed for this EDAT file!");
return false;
LOG_WARNING(LOADER, "EDAT: Empty Dec key!");
}
}
else if ((npdHeader.license & 0x1) == 0x1) // Type 1: Use network activation.

2
rpcs3/Crypto/unedat.h
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@ -14,7 +14,7 @@ constexpr u32 EDAT_FLAG_0x10 = 0x00000010;
constexpr u32 EDAT_FLAG_0x20 = 0x00000020;
constexpr u32 EDAT_DEBUG_DATA_FLAG = 0x80000000;
struct EdatKeys_t
struct LoadedNpdrmKeys_t
{
std::array<u8, 0x10> devKlic{};
std::array<u8, 0x10> rifKey{};

49
rpcs3/Crypto/unself.cpp
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@ -1089,10 +1089,11 @@ bool SELFDecrypter::DecryptNPDRM(u8 *metadata, u32 metadata_size)
memcpy(klicensee_key, key_v.GetKlicenseeKey(), 0x10);
// Use klicensee if available.
if (klicensee_key != NULL)
if (memcmp(klicensee_key, std::array<u8, 0x10>{0}.data(), 0x10))
{
memcpy(npdrm_key, klicensee_key, 0x10);
if (ctrl->npdrm.license == 1) // Network license.
}
else if (ctrl->npdrm.license == 1) // Network license.
{
LOG_ERROR(LOADER, "SELF: Can't decrypt network NPDRM!");
return false;
@ -1131,7 +1132,7 @@ bool SELFDecrypter::DecryptNPDRM(u8 *metadata, u32 metadata_size)
return true;
}
bool SELFDecrypter::LoadMetadata()
bool SELFDecrypter::LoadMetadata(u8* klic_key)
{
aes_context aes;
u32 metadata_info_size = SIZE_32(meta_info);
@ -1150,6 +1151,10 @@ bool SELFDecrypter::LoadMetadata()
// Find the right keyset from the key vault.
SELF_KEY keyset = key_v.FindSelfKey(app_info.self_type, sce_hdr.se_flags, app_info.version);
// Set klic if given
if (klic_key)
key_v.SetKlicenseeKey(klic_key);
// Copy the necessary parameters.
u8 metadata_key[0x20];
u8 metadata_iv[0x10];
@ -1480,7 +1485,7 @@ static bool CheckDebugSelf(fs::file& s)
return false;
}
extern fs::file decrypt_self(fs::file elf_or_self)
extern fs::file decrypt_self(fs::file elf_or_self, u8* klic_key)
{
if (!elf_or_self)
{
@ -1506,7 +1511,7 @@ extern fs::file decrypt_self(fs::file elf_or_self)
}
// Load and decrypt the SELF file metadata.
if (!self_dec.LoadMetadata())
if (!self_dec.LoadMetadata(klic_key))
{
LOG_ERROR(LOADER, "SELF: Failed to load SELF file metadata!");
return fs::file{};
@ -1525,3 +1530,35 @@ extern fs::file decrypt_self(fs::file elf_or_self)
return elf_or_self;
}
extern bool verify_npdrm_self_headers(const fs::file& self, u8* klic_key)
{
if (!self)
return false;
self.seek(0);
if (self.size() >= 4 && self.read<u32>() == "SCE\0"_u32)
{
// Check the ELF file class (32 or 64 bit).
bool isElf32 = IsSelfElf32(self);
// Start the decrypter on this SELF file.
SELFDecrypter self_dec(self);
// Load the SELF file headers.
if (!self_dec.LoadHeaders(isElf32))
{
LOG_ERROR(LOADER, "SELF: Failed to load SELF file headers!");
return false;
}
// Load and decrypt the SELF file metadata.
if (!self_dec.LoadMetadata(klic_key))
{
LOG_ERROR(LOADER, "SELF: Failed to load SELF file metadata!");
return false;
}
}
return true;
}

5
rpcs3/Crypto/unself.h
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@ -410,10 +410,11 @@ public:
fs::file MakeElf(bool isElf32);
bool LoadHeaders(bool isElf32);
void ShowHeaders(bool isElf32);
bool LoadMetadata();
bool LoadMetadata(u8* klic_key);
bool DecryptData();
bool DecryptNPDRM(u8 *metadata, u32 metadata_size);
bool GetKeyFromRap(u8 *content_id, u8 *npdrm_key);
};
extern fs::file decrypt_self(fs::file elf_or_self);
extern fs::file decrypt_self(fs::file elf_or_self, u8* klic_key = nullptr);
extern bool verify_npdrm_self_headers(const fs::file& self, u8* klic_key = nullptr);

99
rpcs3/Emu/Cell/Modules/sceNp.cpp
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@ -5,6 +5,7 @@
#include "Emu/Cell/lv2/sys_process.h"
#include "Emu/IdManager.h"
#include "Crypto/unedat.h"
#include "Crypto/unself.h"
#include "sceNp.h"
logs::channel sceNp("sceNp", logs::level::notice);
@ -48,7 +49,7 @@ s32 npDrmIsAvailable(vm::cptr<u8> k_licensee_addr, vm::cptr<char> drm_path)
}
std::string k_licensee_str = "";
std::array<u8, 0x10> k_licensee;
std::array<u8, 0x10> k_licensee{0};
if (k_licensee_addr)
{
@ -57,29 +58,11 @@ s32 npDrmIsAvailable(vm::cptr<u8> k_licensee_addr, vm::cptr<char> drm_path)
k_licensee[i] = *(k_licensee_addr + i);
k_licensee_str += fmt::format("%02x", k_licensee[i]);
}
}
const std::string& enc_drm_path_local = vfs::get(enc_drm_path);
const fs::file enc_file(vfs::get(enc_drm_path));
u32 magic;
enc_file.read<u32>(magic);
enc_file.seek(0);
if (magic == "SCE\0"_u32) {
sceNp.notice("npDrmIsAvailable(): Assuming file is encrypted at %s", enc_drm_path);
//sprx
}
else if (magic != "NPD\0"_u32)
{
// for now assume its just unencrypted
sceNp.notice("npDrmIsAvailable(): Assuming edat file is unencrypted at %s", enc_drm_path);
return CELL_OK;
sceNp.notice("npDrmIsAvailable(): KLicense key %s", k_licensee_str);
}
sceNp.warning("npDrmIsAvailable(): Found DRM license file at %s", enc_drm_path);
if (k_licensee_addr) {
sceNp.notice("npDrmIsAvailable(): KLicense key %s", k_licensee_str);
}
// TODO: Make more explicit what this actually does (currently it copies "XXXXXXXX" from drm_path (== "/dev_hdd0/game/XXXXXXXXX/*" assumed)
const std::string& drm_file_dir = enc_drm_path.substr(15);
@ -87,39 +70,67 @@ s32 npDrmIsAvailable(vm::cptr<u8> k_licensee_addr, vm::cptr<char> drm_path)
std::string rap_lpath = vfs::get("/dev_hdd0/home/00000001/exdata/"); // TODO: Allow multiple profiles. Use default for now.
auto edatkeys = fxm::get_always<EdatKeys_t>();
// Search for a compatible RAP file.
if (!k_licensee_addr) {
for (const auto& entry : fs::dir(rap_lpath))
for (const auto& entry : fs::dir(rap_lpath))
{
if (entry.name.find(title_id) != -1)
{
if (entry.name.find(title_id) != -1)
{
rap_lpath += entry.name;
break;
}
rap_lpath += entry.name;
break;
}
if (rap_lpath.back() == '/')
{
sceNp.warning("npDrmIsAvailable(): Can't find RAP file for %s", enc_drm_path);
edatkeys->rifKey.fill(0);
}
else
edatkeys->rifKey = GetEdatRifKeyFromRapFile(fs::file{ rap_lpath });
}
if (VerifyEDATHeaderWithKLicense(enc_file, enc_drm_path_local, k_licensee))
auto npdrmkeys = fxm::get_always<LoadedNpdrmKeys_t>();
npdrmkeys->devKlic.fill(0);
npdrmkeys->rifKey.fill(0);
if (rap_lpath.back() == '/')
{
edatkeys->devKlic = std::move(k_licensee);
return CELL_OK;
sceNp.warning("npDrmIsAvailable(): Can't find RAP file for %s", enc_drm_path);
}
else
npdrmkeys->rifKey = GetEdatRifKeyFromRapFile(fs::file{ rap_lpath });
const std::string& enc_drm_path_local = vfs::get(enc_drm_path);
const fs::file enc_file(enc_drm_path_local);
u32 magic;
enc_file.read<u32>(magic);
enc_file.seek(0);
if (magic == "SCE\0"_u32)
{
if (verify_npdrm_self_headers(enc_file, k_licensee.data()))
{
npdrmkeys->devKlic = std::move(k_licensee);
}
else
{
sceNp.error("npDrmIsAvailable(): Failed to verify sce file %s", enc_drm_path);
return SCE_NP_DRM_ERROR_NO_ENTITLEMENT;
}
}
else if (magic == "NPD\0"_u32)
{
// edata / sdata files
if (VerifyEDATHeaderWithKLicense(enc_file, enc_drm_path_local, k_licensee))
{
npdrmkeys->devKlic = std::move(k_licensee);
}
else
{
sceNp.error("npDrmIsAvailable(): Failed to verify npd file %s", enc_drm_path);
return SCE_NP_DRM_ERROR_NO_ENTITLEMENT;
}
}
else
{
sceNp.error("npDrmIsAvailable(): Failed to verify edat file %s", enc_drm_path);
edatkeys->devKlic.fill(0);
edatkeys->rifKey.fill(0);
return SCE_NP_DRM_ERROR_FORMAT;
// for now assume its just unencrypted
sceNp.notice("npDrmIsAvailable(): Assuming npdrm file is unencrypted at %s", enc_drm_path);
}
return CELL_OK;
}

2
rpcs3/Emu/Cell/lv2/sys_fs.cpp
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@ -286,7 +286,7 @@ error_code sys_fs_open(vm::cptr<char> path, s32 flags, vm::ptr<u32> fd, s32 mode
file.seek(0);
if (magic == "NPD\0"_u32)
{
auto edatkeys = fxm::get_always<EdatKeys_t>();
auto edatkeys = fxm::get_always<LoadedNpdrmKeys_t>();
auto sdata_file = std::make_unique<EDATADecrypter>(std::move(file), edatkeys->devKlic, edatkeys->rifKey);
if (!sdata_file->ReadHeader())
{

5
rpcs3/Emu/Cell/lv2/sys_prx.cpp
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@ -6,6 +6,7 @@
#include "Loader/ELF.h"
#include "Emu/Cell/ErrorCodes.h"
#include "Crypto/unedat.h"
#include "sys_prx.h"
namespace vm { using namespace ps3; }
@ -19,7 +20,9 @@ s32 prx_load_module(std::string path, u64 flags, vm::ptr<sys_prx_load_module_opt
{
sys_prx.warning("prx_load_module(path='%s', flags=0x%llx, pOpt=*0x%x)", path.c_str(), flags, pOpt);
const ppu_prx_object obj = decrypt_self(fs::file(vfs::get(path)));
const auto loadedkeys = fxm::get_always<LoadedNpdrmKeys_t>();
const ppu_prx_object obj = decrypt_self(fs::file(vfs::get(path)), loadedkeys->devKlic.data());
if (obj != elf_error::ok)
{