/* Copyright (c) 2010 Benjamin Dobell, Glass Echidna
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.*/
#ifndef PITDATA_H
#define PITDATA_H
// C Standard Library
#include <string.h>
#include <vector>
namespace Heimdall
{
class PitEntry
{
public:
enum
{
kDataSize = 132,
kPartitionNameMaxLength = 32,
kFilenameMaxLength = 64
};
enum
{
kPartitionTypeRfs = 0,
kPartitionTypeBlank = 1, // ?
kPartitionTypeExt4 = 2
};
enum
{
kPartitionFlagWrite = 1 << 1
};
private:
bool unused;
unsigned int partitionType;
unsigned int partitionIdentifier;
unsigned int partitionFlags;
unsigned int unknown2;
unsigned int partitionBlockSize;
unsigned int partitionBlockCount;
unsigned int unknown3;
unsigned int unknown4;
char partitionName[kPartitionNameMaxLength];
char filename[kFilenameMaxLength];
public:
PitEntry();
~PitEntry();
void Print(void) const;
bool GetUnused(void) const
{
return unused;
}
void SetUnused(bool unused)
{
this->unused = unused;
}
unsigned int GetPartitionType(void) const
{
return partitionType;
}
void SetPartitionType(unsigned int partitionType)
{
this->partitionType = partitionType;
}
unsigned int GetPartitionIdentifier(void) const
{
return partitionIdentifier;
}
void SetPartitionIdentifier(unsigned int partitionIdentifier)
{
this->partitionIdentifier = partitionIdentifier;
}
unsigned int GetPartitionFlags(void) const
{
return partitionFlags;
}
void SetPartitionFlags(unsigned int partitionFlags)
{
this->partitionFlags = partitionFlags;
}
unsigned int GetUnknown2(void) const
{
return unknown2;
}
void SetUnknown2(unsigned int unknown2)
{
this->unknown2 = unknown2;
}
unsigned int GetPartitionBlockSize(void) const
{
return partitionBlockSize;
}
void SetPartitionBlockSize(unsigned int partitionBlockSize)
{
this->partitionBlockSize = partitionBlockSize;
}
unsigned int GetPartitionBlockCount(void) const
{
return partitionBlockCount;
}
void SetPartitionBlockCount(unsigned int partitionBlockCount)
{
this->partitionBlockCount = partitionBlockCount;
}
unsigned int GetUnknown3(void) const
{
return unknown3;
}
void SetUnknown3(unsigned int unknown3)
{
this->unknown3 = unknown3;
}
unsigned int GetUnknown4(void) const
{
return unknown4;
}
void SetUnknown4(unsigned int unknown4)
{
this->unknown4 = unknown4;
}
const char *GetPartitionName(void) const
{
return partitionName;
}
void SetPartitionName(const char *partitionName)
{
// This isn't strictly necessary but ensures no junk is left in our PIT file.
memset(this->partitionName, 0, 64);
if (strlen(partitionName) < 64)
strcpy(this->partitionName, partitionName);
else
memcpy(this->partitionName, partitionName, 63);
}
const char *GetFilename(void) const
{
return filename;
}
void SetFilename(const char *filename)
{
// This isn't strictly necessary but ensures no junk is left in our PIT file.
memset(this->filename, 0, 32);
if (strlen(partitionName) < 32)
strcpy(this->filename, filename);
else
memcpy(this->filename, filename, 31);
}
};
class PitData
{
public:
enum
{
kFileIdentifier = 0x12349876,
kHeaderDataSize = 28
};
private:
unsigned int entryCount; // 0x04
unsigned int unknown1; // 0x08
unsigned int unknown2; // 0x0C
unsigned short unknown3; // 0x10 (7508 = I9000, 7703 = I9100 & P1000)?
unsigned short unknown4; // 0x12 (Always 65, probably flags of some sort)
unsigned short unknown5; // 0x14
unsigned short unknown6; // 0x16
unsigned short unknown7; // 0x18
unsigned short unknown8; // 0x1A
// Entries start at 0x1C
std::vector<PitEntry *> entries;
static int UnpackInteger(const unsigned char *data, unsigned int offset)
{
#ifdef WORDS_BIGENDIAN
int value = (data[offset] << 24) | (data[offset + 1] << 16) |
(data[offset + 2] << 8) | data[offset + 3];
#else
// Flip endianness
int value = data[offset] | (data[offset + 1] << 8) |
(data[offset + 2] << 16) | (data[offset + 3] << 24);
#endif
return (value);
}
static int UnpackShort(const unsigned char *data, unsigned int offset)
{
#ifdef WORDS_BIGENDIAN
short value = (data[offset] << 8) | data[offset + 1];
#else
// Flip endianness
short value = data[offset] | (data[offset + 1] << 8);
#endif
return (value);
}
static void PackInteger(unsigned char *data, unsigned int offset, unsigned int value)
{
#ifdef WORDS_BIGENDIAN
data[offset] = (value & 0xFF000000) >> 24;
data[offset + 1] = (value & 0x00FF0000) >> 16;
data[offset + 2] = (value & 0x0000FF00) >> 8;
data[offset + 3] = value & 0x000000FF;
#else
// Flip endianness
data[offset] = value & 0x000000FF;
data[offset + 1] = (value & 0x0000FF00) >> 8;
data[offset + 2] = (value & 0x00FF0000) >> 16;
data[offset + 3] = (value & 0xFF000000) >> 24;
#endif
}
static void PackShort(unsigned char *data, unsigned int offset, unsigned short value)
{
#ifdef WORDS_BIGENDIAN
data[offset] = (value & 0xFF00) >> 8;
data[offset + 1] = value & 0x00FF;
#else
// Flip endianness
data[offset] = value & 0x00FF;
data[offset + 1] = (value & 0xFF00) >> 8;
#endif
}
public:
PitData();
~PitData();
bool Unpack(const unsigned char *data);
void Pack(unsigned char *data) const;
PitEntry *FindEntry(const char *partitionName);
const PitEntry *FindEntry(const char *partitionName) const;
PitEntry *FindEntry(unsigned int partitionIdentifier);
const PitEntry *FindEntry(unsigned int partitionIdentifier) const;
void Print(void) const;
unsigned int GetEntryCount(void) const
{
return entryCount;
}
unsigned int GetUnknown1(void) const
{
return unknown1;
}
unsigned int GetUnknown2(void) const
{
return unknown2;
}
unsigned short GetUnknown3(void) const
{
return unknown3;
}
unsigned short GetUnknown4(void) const
{
return unknown4;
}
unsigned short GetUnknown5(void) const
{
return unknown5;
}
unsigned short GetUnknown6(void) const
{
return unknown6;
}
unsigned short GetUnknown7(void) const
{
return unknown7;
}
unsigned short GetUnknown8(void) const
{
return unknown8;
}
};
}
#endif
