public ModHeader(Nso nso)
{
baseAddr = nso.GetModAddr();
byte[] buffer = nso.ReadNso((uint)baseAddr, 0x1C);
using (MemoryStream ms = new MemoryStream(buffer))
{
BinaryReader br = new BinaryReader(ms);
string magic = Encoding.ASCII.GetString(br.ReadBytes(4));
if (magic != HEADER_MAGIC)
{
throw new NsoException("Invalid MOD0 header");
}
dynAddr = br.ReadInt32();
bssStart = br.ReadInt32();
bssEnd = br.ReadInt32();
ehFrameStart = br.ReadInt32();
ehFrameEnd = br.ReadInt32();
moduleObj = br.ReadInt32();
DynInfo = new DynamicInfo(nso, DynamicAddr);
}
}
public byte[] ReadExeFs(long addr, int size)
{
long pos = addr;
byte[] fullBuffer = new byte[size];
while (pos < addr + size)
{
var page = GetAddressPage(pos);
if ((page.Permission & SegPerm.R) == SegPerm.R)
{
Nso curNso = GetAddressNso(pos);
long baseAddr = GetNsoAddress((NsoTypeEnum)Nsos.ToList().IndexOf(curNso));
long off = pos - page.Address;
int curSize = (int)Math.Min(page.Size - off, size);
byte[] sub = curNso.ReadNso((uint)(pos - baseAddr), curSize);
Buffer.BlockCopy(sub, 0, fullBuffer, (int)(pos - addr), sub.Length);
pos += curSize;
}
else
{
pos += page.Size;
}
}
return(fullBuffer);
}
public override int Read(byte[] buffer, int offset, int count)
{
int newSize = (pos + count) > Length
? (int)(Length - (pos + count))
: count;
if (IgnoreReadPerm)
{
byte[] buff = new byte[count];
var seg = nso.GetAddressSegment(pos);
Buffer.BlockCopy(nso.ReadNso(pos, newSize), 0, buff, 0, count);
Buffer.BlockCopy(buff, 0, buffer, offset, newSize);
return(count);
}
else
{
byte[] buff = nso.ReadNso(pos, newSize);
Buffer.BlockCopy(buff, 0, buffer, offset, newSize);
return(newSize);
}
Position += newSize;
}
public Elf64_Sym(Nso nso, uint addr)
{
byte[] buffer = nso.ReadNso(addr, ELF64_SYM_SIZE);
using (MemoryStream ms = new MemoryStream(buffer))
{
BinaryReader br = new BinaryReader(ms);
st_name = br.ReadUInt32();
st_info = br.ReadByte();
st_other = br.ReadByte();
st_shndx = br.ReadUInt16();
st_value = br.ReadUInt64();
st_size = br.ReadUInt64();
}
}
public DynamicInfo(Nso nso, long addr)
{
byte[] buffer = nso.ReadNso((uint)addr, 0x200);
using (MemoryStream ms = new MemoryStream(buffer))
{
BinaryReader br = new BinaryReader(ms);
Elf64_Dyn dyn = new Elf64_Dyn(br);
while (dyn.d_tag != DtTagEnum.DT_NULL)
{
foreach (var item in fields)
{
if (dyn.d_tag == item.Item1)
{
this.GetType().GetProperty(item.Item2).SetValue(this, dyn.d_un);
}
}
dyn = new Elf64_Dyn(br);
}
}
}
