dolphin-emulator/Source/Core/DiscIO/NANDContentLoader.cpp
BhaaL 8a6d9e1e0b hide the distinction between WAD and File from ES
instead, leave all the management with the NANDContentLoader.

for file data (directly on the NAND), this opens the file on-demand and
returns the requested chunk when asked for it.
for on-the-fly decrypted WAD data, we just keep the decoded buffer in
memory, like we've done before - except that we don't give away any objects
we don't want to.
2016-03-20 13:10:50 +01:00

510 lines
13 KiB
C++

// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <algorithm>
#include <array>
#include <cstddef>
#include <cstdio>
#include <cstring>
#include <functional>
#include <map>
#include <string>
#include <utility>
#include <vector>
#include <mbedtls/aes.h>
#include "Common/CommonFuncs.h"
#include "Common/CommonTypes.h"
#include "Common/FileUtil.h"
#include "Common/MathUtil.h"
#include "Common/MsgHandler.h"
#include "Common/NandPaths.h"
#include "Common/StringUtil.h"
#include "Common/Logging/Log.h"
#include "DiscIO/NANDContentLoader.h"
#include "DiscIO/Volume.h"
#include "DiscIO/WiiWad.h"
namespace DiscIO
{
CSharedContent::CSharedContent()
{
UpdateLocation();
}
void CSharedContent::UpdateLocation()
{
m_Elements.clear();
m_LastID = 0;
m_ContentMap = StringFromFormat("%s/shared1/content.map", File::GetUserPath(D_WIIROOT_IDX).c_str());
File::IOFile pFile(m_ContentMap, "rb");
SElement Element;
while (pFile.ReadArray(&Element, 1))
{
m_Elements.push_back(Element);
m_LastID++;
}
}
CSharedContent::~CSharedContent()
{}
std::string CSharedContent::GetFilenameFromSHA1(const u8* hash)
{
for (auto& Element : m_Elements)
{
if (memcmp(hash, Element.SHA1Hash, 20) == 0)
{
return StringFromFormat("%s/shared1/%c%c%c%c%c%c%c%c.app", File::GetUserPath(D_WIIROOT_IDX).c_str(),
Element.FileName[0], Element.FileName[1], Element.FileName[2], Element.FileName[3],
Element.FileName[4], Element.FileName[5], Element.FileName[6], Element.FileName[7]);
}
}
return "unk";
}
std::string CSharedContent::AddSharedContent(const u8* hash)
{
std::string filename = GetFilenameFromSHA1(hash);
if (strcasecmp(filename.c_str(), "unk") == 0)
{
std::string id = StringFromFormat("%08x", m_LastID);
SElement Element;
memcpy(Element.FileName, id.c_str(), 8);
memcpy(Element.SHA1Hash, hash, 20);
m_Elements.push_back(Element);
File::CreateFullPath(m_ContentMap);
File::IOFile pFile(m_ContentMap, "ab");
pFile.WriteArray(&Element, 1);
filename = StringFromFormat("%s/shared1/%s.app", File::GetUserPath(D_WIIROOT_IDX).c_str(), id.c_str());
m_LastID++;
}
return filename;
}
const std::vector<u8> CNANDContentDataFile::Get()
{
std::vector<u8> result;
File::IOFile file(m_filename, "rb");
if (!file.IsGood())
return result;
u64 size = file.GetSize();
if (size == 0)
return result;
result.resize(size);
file.ReadBytes(result.data(), result.size());
return result;
}
bool CNANDContentDataFile::GetRange(u32 start, u32 size, u8* buffer)
{
File::IOFile file(m_filename, "rb");
if (!file.IsGood())
return false;
if (!file.Seek(start, SEEK_SET))
return false;
return file.ReadBytes(buffer, static_cast<size_t>(size));
}
bool CNANDContentDataBuffer::GetRange(u32 start, u32 size, u8* buffer)
{
if (start + size > m_buffer.size())
return false;
std::copy(&m_buffer[start], &m_buffer[start + size], buffer);
return true;
}
CNANDContentLoader::CNANDContentLoader(const std::string& content_name)
: m_Valid(false)
, m_IsWAD(false)
, m_TitleID(-1)
, m_IosVersion(0x09)
, m_BootIndex(-1)
{
m_Valid = Initialize(content_name);
}
CNANDContentLoader::~CNANDContentLoader()
{
}
const SNANDContent* CNANDContentLoader::GetContentByIndex(int index) const
{
for (auto& Content : m_Content)
{
if (Content.m_Index == index)
{
return &Content;
}
}
return nullptr;
}
bool CNANDContentLoader::Initialize(const std::string& name)
{
if (name.empty())
return false;
m_Path = name;
WiiWAD wad(name);
std::vector<u8> data_app;
std::vector<u8> tmd;
std::vector<u8> decrypted_title_key;
if (wad.IsValid())
{
m_IsWAD = true;
m_Ticket = wad.GetTicket();
decrypted_title_key = GetKeyFromTicket(m_Ticket);
tmd = wad.GetTMD();
data_app = wad.GetDataApp();
}
else
{
std::string tmd_filename(m_Path);
if (tmd_filename.back() == '/')
tmd_filename += "title.tmd";
else
m_Path = tmd_filename.substr(0, tmd_filename.find("title.tmd"));
File::IOFile tmd_file(tmd_filename, "rb");
if (!tmd_file)
{
WARN_LOG(DISCIO, "CreateFromDirectory: error opening %s", tmd_filename.c_str());
return false;
}
tmd.resize(static_cast<size_t>(File::GetSize(tmd_filename)));
tmd_file.ReadBytes(tmd.data(), tmd.size());
}
std::copy(&tmd[0], &tmd[TMD_HEADER_SIZE], m_TMDHeader);
std::copy(&tmd[0x180], &tmd[0x180 + TMD_VIEW_SIZE], m_TMDView);
m_TitleVersion = Common::swap16(&tmd[0x01DC]);
m_NumEntries = Common::swap16(&tmd[0x01DE]);
m_BootIndex = Common::swap16(&tmd[0x01E0]);
m_TitleID = Common::swap64(&tmd[0x018C]);
m_IosVersion = Common::swap16(&tmd[0x018A]);
m_Country = static_cast<u8>(m_TitleID & 0xFF);
if (m_Country == 2) // SYSMENU
m_Country = GetSysMenuRegion(m_TitleVersion);
InitializeContentEntries(tmd, decrypted_title_key, data_app);
return true;
}
void CNANDContentLoader::InitializeContentEntries(const std::vector<u8>& tmd, const std::vector<u8>& decrypted_title_key, const std::vector<u8>& data_app)
{
m_Content.resize(m_NumEntries);
std::array<u8, 16> iv;
u32 data_app_offset = 0;
for (u32 i = 0; i < m_NumEntries; i++)
{
const u32 entry_offset = 0x24 * i;
SNANDContent& content = m_Content[i];
content.m_ContentID = Common::swap32(&tmd[entry_offset + 0x01E4]);
content.m_Index = Common::swap16(&tmd[entry_offset + 0x01E8]);
content.m_Type = Common::swap16(&tmd[entry_offset + 0x01EA]);
content.m_Size = static_cast<u32>(Common::swap64(&tmd[entry_offset + 0x01EC]));
const auto header_begin = std::next(tmd.begin(), entry_offset + 0x01E4);
const auto header_end = std::next(header_begin, ArraySize(content.m_Header));
std::copy(header_begin, header_end, content.m_Header);
const auto hash_begin = std::next(tmd.begin(), entry_offset + 0x01F4);
const auto hash_end = std::next(hash_begin, ArraySize(content.m_SHA1Hash));
std::copy(hash_begin, hash_end, content.m_SHA1Hash);
if (m_IsWAD)
{
u32 rounded_size = ROUND_UP(content.m_Size, 0x40);
iv.fill(0);
std::copy(&tmd[entry_offset + 0x01E8], &tmd[entry_offset + 0x01E8 + 2], iv.begin());
content.m_Data = std::make_unique<CNANDContentDataBuffer>(AESDecode(decrypted_title_key.data(), iv.data(), &data_app[data_app_offset], rounded_size));
data_app_offset += rounded_size;
continue;
}
std::string filename;
if (content.m_Type & 0x8000) // shared app
filename = CSharedContent::AccessInstance().GetFilenameFromSHA1(content.m_SHA1Hash);
else
filename = StringFromFormat("%s/%08x.app", m_Path.c_str(), content.m_ContentID);
content.m_Data = std::make_unique<CNANDContentDataFile>(filename);
// Be graceful about incorrect TMDs.
if (File::Exists(filename))
content.m_Size = static_cast<u32>(File::GetSize(filename));
}
}
std::vector<u8> CNANDContentLoader::AESDecode(const u8* key, u8* iv, const u8* src, u32 size)
{
mbedtls_aes_context aes_ctx;
std::vector<u8> buffer(size);
mbedtls_aes_setkey_dec(&aes_ctx, key, 128);
mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_DECRYPT, size, iv, src, buffer.data());
return buffer;
}
std::vector<u8> CNANDContentLoader::GetKeyFromTicket(const std::vector<u8>& ticket)
{
const u8 common_key[16] = {0xeb,0xe4,0x2a,0x22,0x5e,0x85,0x93,0xe4,0x48,0xd9,0xc5,0x45,0x73,0x81,0xaa,0xf7};
u8 iv[16] = {};
std::copy(&ticket[0x01DC], &ticket[0x01DC + 8], iv);
return AESDecode(common_key, iv, &ticket[0x01BF], 16);
}
DiscIO::IVolume::ECountry CNANDContentLoader::GetCountry() const
{
if (!IsValid())
return DiscIO::IVolume::COUNTRY_UNKNOWN;
return CountrySwitch(m_Country);
}
CNANDContentManager::~CNANDContentManager()
{
}
const CNANDContentLoader& CNANDContentManager::GetNANDLoader(const std::string& content_path)
{
auto it = m_map.find(content_path);
if (it != m_map.end())
return *it->second;
return *m_map.emplace_hint(it, std::make_pair(content_path, std::make_unique<CNANDContentLoader>(content_path)))->second;
}
const CNANDContentLoader& CNANDContentManager::GetNANDLoader(u64 title_id, Common::FromWhichRoot from)
{
std::string path = Common::GetTitleContentPath(title_id, from);
return GetNANDLoader(path);
}
bool CNANDContentManager::RemoveTitle(u64 title_id, Common::FromWhichRoot from)
{
auto& loader = GetNANDLoader(title_id, from);
if (!loader.IsValid())
return false;
loader.RemoveTitle();
return GetNANDLoader(title_id, from).IsValid();
}
void CNANDContentManager::ClearCache()
{
m_map.clear();
}
void CNANDContentLoader::RemoveTitle() const
{
INFO_LOG(DISCIO, "RemoveTitle %08x/%08x", (u32)(m_TitleID >> 32), (u32)m_TitleID);
if (IsValid())
{
// remove TMD?
for (u32 i = 0; i < m_NumEntries; i++)
{
if (!(m_Content[i].m_Type & 0x8000)) // skip shared apps
{
std::string filename = StringFromFormat("%s/%08x.app", m_Path.c_str(), m_Content[i].m_ContentID);
INFO_LOG(DISCIO, "Delete %s", filename.c_str());
File::Delete(filename);
}
}
CNANDContentManager::Access().ClearCache(); // deletes 'this'
}
}
cUIDsys::cUIDsys()
{
UpdateLocation();
}
void cUIDsys::UpdateLocation()
{
m_Elements.clear();
m_LastUID = 0x00001000;
m_UidSys = File::GetUserPath(D_SESSION_WIIROOT_IDX) + "/sys/uid.sys";
File::IOFile pFile(m_UidSys, "rb");
SElement Element;
while (pFile.ReadArray(&Element, 1))
{
*(u32*)&(Element.UID) = Common::swap32(m_LastUID++);
m_Elements.push_back(Element);
}
pFile.Close();
if (m_Elements.empty())
{
*(u64*)&(Element.titleID) = Common::swap64(TITLEID_SYSMENU);
*(u32*)&(Element.UID) = Common::swap32(m_LastUID++);
File::CreateFullPath(m_UidSys);
pFile.Open(m_UidSys, "wb");
if (!pFile.WriteArray(&Element, 1))
ERROR_LOG(DISCIO, "Failed to write to %s", m_UidSys.c_str());
}
}
cUIDsys::~cUIDsys()
{}
u32 cUIDsys::GetUIDFromTitle(u64 title_id)
{
for (auto& Element : m_Elements)
{
if (Common::swap64(title_id) == *(u64*)&(Element.titleID))
{
return Common::swap32(Element.UID);
}
}
return 0;
}
void cUIDsys::AddTitle(u64 title_id)
{
if (GetUIDFromTitle(title_id))
{
INFO_LOG(DISCIO, "Title %08x%08x, already exists in uid.sys", (u32)(title_id >> 32), (u32)title_id);
return;
}
SElement Element;
*(u64*)&(Element.titleID) = Common::swap64(title_id);
*(u32*)&(Element.UID) = Common::swap32(m_LastUID++);
m_Elements.push_back(Element);
File::CreateFullPath(m_UidSys);
File::IOFile pFile(m_UidSys, "ab");
if (!pFile.WriteArray(&Element, 1))
ERROR_LOG(DISCIO, "fwrite failed");
}
void cUIDsys::GetTitleIDs(std::vector<u64>& title_ids, bool owned)
{
for (auto& Element : m_Elements)
{
if ((owned && Common::CheckTitleTIK(Common::swap64(Element.titleID), Common::FROM_SESSION_ROOT)) ||
(!owned && Common::CheckTitleTMD(Common::swap64(Element.titleID), Common::FROM_SESSION_ROOT)))
title_ids.push_back(Common::swap64(Element.titleID));
}
}
u64 CNANDContentManager::Install_WiiWAD(const std::string& filename)
{
if (filename.find(".wad") == std::string::npos)
return 0;
const CNANDContentLoader& content_loader = GetNANDLoader(filename);
if (content_loader.IsValid() == false)
return 0;
u64 title_id = content_loader.GetTitleID();
//copy WAD's TMD header and contents to content directory
std::string content_path(Common::GetTitleContentPath(title_id, Common::FROM_CONFIGURED_ROOT));
std::string tmd_filename(Common::GetTMDFileName(title_id, Common::FROM_CONFIGURED_ROOT));
File::CreateFullPath(tmd_filename);
File::IOFile tmd_file(tmd_filename, "wb");
if (!tmd_file)
{
PanicAlertT("WAD installation failed: error creating %s", tmd_filename.c_str());
return 0;
}
tmd_file.WriteBytes(content_loader.GetTMDHeader(), CNANDContentLoader::TMD_HEADER_SIZE);
for (u32 i = 0; i < content_loader.GetContentSize(); i++)
{
const SNANDContent& content = content_loader.GetContent()[i];
tmd_file.WriteBytes(content.m_Header, CNANDContentLoader::CONTENT_HEADER_SIZE);
std::string app_filename;
if (content.m_Type & 0x8000) //shared
app_filename = CSharedContent::AccessInstance().AddSharedContent(content.m_SHA1Hash);
else
app_filename = StringFromFormat("%s%08x.app", content_path.c_str(), content.m_ContentID);
if (!File::Exists(app_filename))
{
File::CreateFullPath(app_filename);
File::IOFile app_file(app_filename, "wb");
if (!app_file)
{
PanicAlertT("WAD installation failed: error creating %s", app_filename.c_str());
return 0;
}
app_file.WriteBytes(content.m_Data->Get().data(), content.m_Size);
}
else
{
INFO_LOG(DISCIO, "Content %s already exists.", app_filename.c_str());
}
}
//Extract and copy WAD's ticket to ticket directory
if (!AddTicket(title_id, content_loader.GetTicket()))
{
PanicAlertT("WAD installation failed: error creating ticket");
return 0;
}
cUIDsys::AccessInstance().AddTitle(title_id);
ClearCache();
return title_id;
}
bool AddTicket(u64 title_id, const std::vector<u8>& ticket)
{
std::string ticket_filename = Common::GetTicketFileName(title_id, Common::FROM_CONFIGURED_ROOT);
File::CreateFullPath(ticket_filename);
File::IOFile ticket_file(ticket_filename, "wb");
if (!ticket_file)
return false;
return ticket_file.WriteBytes(ticket.data(), ticket.size());
}
} // namespace end