/** @file\r
\r
-Copyright (c) 2005 - 2006, Intel Corporation.<BR>\r
-All rights reserved. This program and the accompanying materials\r
-are licensed and made available under the terms and conditions of the BSD License\r
-which accompanies this distribution. The full text of the license may be found at\r
-http://opensource.org/licenses/bsd-license.php\r
-\r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
EFI_STATUS\r
Ip4Output (\r
IN IP4_SERVICE *IpSb,\r
- IN IP4_PROTOCOL *IpInstance, OPTIONAL\r
+ IN IP4_PROTOCOL *IpInstance OPTIONAL,\r
IN NET_BUF *Packet,\r
IN IP4_HEAD *Head,\r
IN UINT8 *Option,\r
IN EFI_STATUS IoStatus\r
);\r
\r
+/**\r
+ Prepend an IP4 head to the Packet. It will copy the options and\r
+ build the IP4 header fields. Used for IP4 fragmentation.\r
+\r
+ @param Packet The packet to prepend IP4 header to\r
+ @param Head The caller supplied header. The caller should set\r
+ the following header fields: Tos, TotalLen, Id,\r
+ Fragment, Ttl, Protocol, Src and Dst. All the fields\r
+ are in host byte order. This function will fill in\r
+ the Ver, HeadLen, and checksum.\r
+ @param Option The orginal IP4 option to copy from\r
+ @param OptLen The length of the IP4 option\r
+\r
+ @retval EFI_BAD_BUFFER_SIZE There is no enought room in the head space of\r
+ Packet.\r
+ @retval EFI_SUCCESS The IP4 header is successfully added to the packet.\r
+\r
+**/\r
+EFI_STATUS\r
+Ip4PrependHead (\r
+ IN OUT NET_BUF *Packet,\r
+ IN IP4_HEAD *Head,\r
+ IN UINT8 *Option,\r
+ IN UINT32 OptLen\r
+ );\r
+\r
extern UINT16 mIp4Id;\r
+\r
#endif\r