Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers...

[reactos.git] / reactos / sdk / lib / drivers / ip / network / checksum.c

diff --git a/reactos/sdk/lib/drivers/ip/network/checksum.c b/reactos/sdk/lib/drivers/ip/network/checksum.c
deleted file mode 100644 (file)
index 1cc9663..0000000
--- a/reactos/sdk/lib/drivers/ip/network/checksum.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * COPYRIGHT:   See COPYING in the top level directory
- * PROJECT:     ReactOS TCP/IP protocol driver
- * FILE:        tcpip/checksum.c
- * PURPOSE:     Checksum routines
- * NOTES:       The checksum routine is from RFC 1071
- * PROGRAMMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
- * REVISIONS:
- *   CSH 01/08-2000 Created
- */
-
-#include "precomp.h"
-
-
-ULONG ChecksumFold(
-  ULONG Sum)
-{
-  /* Fold 32-bit sum to 16 bits */
-  while (Sum >> 16)
-    {
-      Sum = (Sum & 0xFFFF) + (Sum >> 16);
-    }
-
-  return Sum;
-}
-
-ULONG ChecksumCompute(
-  PVOID Data,
-  UINT Count,
-  ULONG Seed)
-/*
- * FUNCTION: Calculate checksum of a buffer
- * ARGUMENTS:
- *     Data  = Pointer to buffer with data
- *     Count = Number of bytes in buffer
- *     Seed  = Previously calculated checksum (if any)
- * RETURNS:
- *     Checksum of buffer
- */
-{
-  register ULONG Sum = Seed;
-
-  while (Count > 1)
-    {
-      Sum += *(PUSHORT)Data;
-      Count -= 2;
-      Data = (PVOID)((ULONG_PTR) Data + 2);
-    }
-
-  /* Add left-over byte, if any */
-  if (Count > 0)
-    {
-      Sum += *(PUCHAR)Data;
-    }
-
-  return Sum;
-}
-
-ULONG
-UDPv4ChecksumCalculate(
-  PIPv4_HEADER IPHeader,
-  PUCHAR PacketBuffer,
-  ULONG DataLength)
-{
-  ULONG Sum = 0;
-  USHORT TmpSum;
-  ULONG i;
-  BOOLEAN Pad;
-
-  /* Pad the data if needed */
-  Pad = (DataLength & 1);
-  if (Pad)
-      DataLength++;
-
-  /* Add from the UDP header and data */
-  for (i = 0; i < DataLength; i += 2)
-  {
-       TmpSum = ((PacketBuffer[i] << 8) & 0xFF00) +
-                ((Pad && i == DataLength - 2) ? 0 : (PacketBuffer[i+1] & 0x00FF));
-       Sum += TmpSum;
-  }
-
-  /* Add the source address */
-  for (i = 0; i < sizeof(IPv4_RAW_ADDRESS); i += 2)
-  {
-       TmpSum = ((((PUCHAR)&IPHeader->SrcAddr)[i] << 8) & 0xFF00) +
-                (((PUCHAR)&IPHeader->SrcAddr)[i+1] & 0x00FF);
-       Sum += TmpSum;
-  }
-
-  /* Add the destination address */
-  for (i = 0; i < sizeof(IPv4_RAW_ADDRESS); i += 2)
-  {
-       TmpSum = ((((PUCHAR)&IPHeader->DstAddr)[i] << 8) & 0xFF00) +
-                (((PUCHAR)&IPHeader->DstAddr)[i+1] & 0x00FF);
-       Sum += TmpSum;
-  }
-
-  /* Add the proto number and length */
-  Sum += IPPROTO_UDP + (DataLength - (Pad ? 1 : 0));
-
-  /* Fold the checksum and return the one's complement */
-  return ~ChecksumFold(Sum);
-}
-