Import ArpDxe, Dhcp4Dxe, Ip4Dxe, Mtftp4Dxe, PxeBcDxe and PxeDhcp4Dxe.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3492 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Option.h

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+/** @file
+
+Copyright (c) 2005 - 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+
+Module Name:
+
+  Ip4Option.h
+
+Abstract:
+
+  IP4 option support routines.
+
+
+**/
+
+#ifndef __EFI_IP4_OPTION_H__
+#define __EFI_IP4_OPTION_H__
+
+enum {
+  IP4_OPTION_EOP       = 0,
+  IP4_OPTION_NOP       = 1,
+  IP4_OPTION_LSRR      = 131,  // Loss source and record routing,   10000011
+  IP4_OPTION_SSRR      = 137,  // Strict source and record routing, 10001001
+  IP4_OPTION_RR        = 7,    // Record routing, 00000111
+
+  IP4_OPTION_COPY_MASK = 0x80,
+};
+
+BOOLEAN
+Ip4OptionIsValid (
+  IN UINT8                  *Option,
+  IN UINT32                 OptLen,
+  IN BOOLEAN                Rcvd
+  );
+
+EFI_STATUS
+Ip4CopyOption (
+  IN UINT8                  *Option,
+  IN UINT32                 OptLen,
+  IN BOOLEAN                Fragment,
+  IN UINT8                  *Buf,     OPTIONAL
+  IN OUT UINT32             *BufLen
+  );
+#endif