1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <cstddef>
#include <memory>
#include <string>
#include "Common/CommonTypes.h"
#include "Common/FileUtil.h"
#include "Common/MathUtil.h"
#include "Common/Logging/Log.h"
#include "DiscIO/Blob.h"
#include "DiscIO/WiiWad.h"
namespace DiscIO
{
class CBlobBigEndianReader
{
public:
CBlobBigEndianReader(DiscIO::IBlobReader& _rReader) : m_rReader(_rReader) {}
u32 Read32(u64 _Offset)
{
u32 Temp;
m_rReader.Read(_Offset, 4, (u8*)&Temp);
return(Common::swap32(Temp));
}
private:
DiscIO::IBlobReader& m_rReader;
};
WiiWAD::WiiWAD(const std::string& name)
{
std::unique_ptr<IBlobReader> reader(DiscIO::CreateBlobReader(name));
if (reader == nullptr || File::IsDirectory(name))
{
m_Valid = false;
return;
}
m_Valid = ParseWAD(*reader);
}
WiiWAD::~WiiWAD()
{
if (m_Valid)
{
delete[] m_pCertificateChain;
delete[] m_pTicket;
delete[] m_pTMD;
delete[] m_pDataApp;
delete[] m_pFooter;
}
}
u8* WiiWAD::CreateWADEntry(DiscIO::IBlobReader& _rReader, u32 _Size, u64 _Offset)
{
if (_Size > 0)
{
u8* pTmpBuffer = new u8[_Size];
_dbg_assert_msg_(BOOT, pTmpBuffer!=nullptr, "WiiWAD: Can't allocate memory for WAD entry");
if (!_rReader.Read(_Offset, _Size, pTmpBuffer))
{
ERROR_LOG(DISCIO, "WiiWAD: Could not read from file");
PanicAlertT("WiiWAD: Could not read from file");
}
return pTmpBuffer;
}
return nullptr;
}
bool WiiWAD::ParseWAD(DiscIO::IBlobReader& _rReader)
{
CBlobBigEndianReader ReaderBig(_rReader);
// get header size
u32 HeaderSize = ReaderBig.Read32(0);
if (HeaderSize != 0x20)
{
_dbg_assert_msg_(BOOT, (HeaderSize==0x20), "WiiWAD: Header size != 0x20");
return false;
}
// get header
u8 Header[0x20];
_rReader.Read(0, HeaderSize, Header);
u32 HeaderType = ReaderBig.Read32(0x4);
if ((0x49730000 != HeaderType) && (0x69620000 != HeaderType))
return false;
m_CertificateChainSize = ReaderBig.Read32(0x8);
u32 Reserved = ReaderBig.Read32(0xC);
m_TicketSize = ReaderBig.Read32(0x10);
m_TMDSize = ReaderBig.Read32(0x14);
m_DataAppSize = ReaderBig.Read32(0x18);
m_FooterSize = ReaderBig.Read32(0x1C);
if (MAX_LOGLEVEL >= LogTypes::LOG_LEVELS::LDEBUG)
_dbg_assert_msg_(BOOT, Reserved==0x00, "WiiWAD: Reserved must be 0x00");
u32 Offset = 0x40;
m_pCertificateChain = CreateWADEntry(_rReader, m_CertificateChainSize, Offset); Offset += ROUND_UP(m_CertificateChainSize, 0x40);
m_pTicket = CreateWADEntry(_rReader, m_TicketSize, Offset); Offset += ROUND_UP(m_TicketSize, 0x40);
m_pTMD = CreateWADEntry(_rReader, m_TMDSize, Offset); Offset += ROUND_UP(m_TMDSize, 0x40);
m_pDataApp = CreateWADEntry(_rReader, m_DataAppSize, Offset); Offset += ROUND_UP(m_DataAppSize, 0x40);
m_pFooter = CreateWADEntry(_rReader, m_FooterSize, Offset); Offset += ROUND_UP(m_FooterSize, 0x40);
return true;
}
bool WiiWAD::IsWiiWAD(const std::string& name)
{
std::unique_ptr<IBlobReader> blob_reader(DiscIO::CreateBlobReader(name));
if (blob_reader == nullptr)
return false;
CBlobBigEndianReader big_endian_reader(*blob_reader);
bool result = false;
// check for Wii wad
if (big_endian_reader.Read32(0x00) == 0x20)
{
u32 wad_type = big_endian_reader.Read32(0x04);
switch (wad_type)
{
case 0x49730000:
case 0x69620000:
result = true;
}
}
return result;
}
} // namespace end
|
