private static MemoryProtection GetProtection(Memory.MemoryProtection protection)
{
switch (protection)
{
case Memory.MemoryProtection.None: return MemoryProtection.NoAccess;
case Memory.MemoryProtection.Read: return MemoryProtection.ReadOnly;
case Memory.MemoryProtection.ReadAndWrite: return MemoryProtection.ReadWrite;
case Memory.MemoryProtection.ReadAndExecute: return MemoryProtection.ExecuteRead;
case Memory.MemoryProtection.ReadWriteExecute: return MemoryProtection.ExecuteReadWrite;
case Memory.MemoryProtection.Execute: return MemoryProtection.Execute;
default: throw new ArgumentException($"Invalid permission \"{protection}\".");
}
}
private static MmapProts GetProtection(Memory.MemoryProtection protection)
{
switch (protection)
{
case Memory.MemoryProtection.None: return(MmapProts.PROT_NONE);
case Memory.MemoryProtection.Read: return(MmapProts.PROT_READ);
case Memory.MemoryProtection.ReadAndWrite: return(MmapProts.PROT_READ | MmapProts.PROT_WRITE);
case Memory.MemoryProtection.ReadAndExecute: return(MmapProts.PROT_READ | MmapProts.PROT_EXEC);
case Memory.MemoryProtection.Execute: return(MmapProts.PROT_EXEC);
default: throw new ArgumentException($"Invalid permission \"{protection}\".");
}
}
public static bool Reprotect(IntPtr address, IntPtr size, Memory.MemoryProtection protection)
{
MemoryProtection prot = GetProtection(protection);
return(VirtualProtect(address, size, prot, out _));
}
public static bool Reprotect(IntPtr address, ulong size, Memory.MemoryProtection protection)
{
MmapProts prot = GetProtection(protection);
return(Syscall.mprotect(address, size, prot) == 0);
}
