MdeModulePkg: Fix issue about current Ip4Dxe implementation for DHCP DORA process

[mirror_edk2.git] / MdeModulePkg / Universal / Network / Ip4Dxe / Ip4Option.h

diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Option.h b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Option.h
index 546bf8ca6d0c932ede9effcb11e931a5a40151b3..f9c65d026d6b34344152060a7fb025fbfc2d5a44 100644 (file)
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Option.h
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Option.h
@@ -1,7 +1,8 @@
 /** @file\r
-\r
-Copyright (c) 2005 - 2006, Intel Corporation\r
-All rights reserved. This program and the accompanying materials\r
+  IP4 option support routines.\r
+  \r
+Copyright (c) 2005 - 2009, Intel Corporation. All rights reserved.<BR>\r
+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
@@ -9,39 +10,27 @@ http://opensource.org/licenses/bsd-license.php
 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
 \r
-\r
-Module Name:\r
-\r
-  Ip4Option.h\r
-\r
-Abstract:\r
-\r
-  IP4 option support routines.\r
-\r
-\r
 **/\r
 \r
 #ifndef __EFI_IP4_OPTION_H__\r
 #define __EFI_IP4_OPTION_H__\r
 \r
-typedef enum {\r
-  IP4_OPTION_EOP       = 0,\r
-  IP4_OPTION_NOP       = 1,\r
-  IP4_OPTION_LSRR      = 131,  // Loss source and record routing,   10000011\r
-  IP4_OPTION_SSRR      = 137,  // Strict source and record routing, 10001001\r
-  IP4_OPTION_RR        = 7,    // Record routing, 00000111\r
+#define IP4_OPTION_EOP        0\r
+#define IP4_OPTION_NOP        1\r
+#define IP4_OPTION_LSRR       131  // Loss source and record routing,   10000011\r
+#define IP4_OPTION_SSRR       137  // Strict source and record routing, 10001001\r
+#define IP4_OPTION_RR         7    // Record routing, 00000111\r
 \r
-  IP4_OPTION_COPY_MASK = 0x80\r
-} IP4_OPTION_ENUM_TYPES;\r
+#define IP4_OPTION_COPY_MASK  0x80\r
 \r
 /**\r
   Validate the IP4 option format for both the packets we received\r
   and will transmit. It will compute the ICMP error message fields\r
   if the option is mal-formated. But this information isn't used.\r
 \r
-  @param  Option                The first byte of the option\r
-  @param  OptionLen             The length of the whole option\r
-  @param  Rcvd                  The option is from the packet we received if TRUE,\r
+  @param[in]  Option            The first byte of the option\r
+  @param[in]  OptionLen         The length of the whole option\r
+  @param[in]  Rcvd              The option is from the packet we received if TRUE,\r
                                 otherwise the option we wants to transmit.\r
 \r
   @retval TRUE     The option is properly formatted\r
@@ -62,11 +51,11 @@ Ip4OptionIsValid (
      fragments.\r
   2. Pad the options copied over to aligned to 4 bytes.\r
 \r
-  @param  Option                The original option to copy from\r
-  @param  OptionLen             The length of the original option\r
-  @param  FirstFragment         Whether it is the first fragment\r
-  @param  Buf                   The buffer to copy options to. NULL \r
-  @param  BufLen                The length of the buffer\r
+  @param[in]       Option            The original option to copy from\r
+  @param[in]       OptionLen         The length of the original option\r
+  @param[in]       FirstFragment     Whether it is the first fragment\r
+  @param[in, out]  Buf               The buffer to copy options to. NULL \r
+  @param[in, out]  BufLen            The length of the buffer\r
 \r
   @retval EFI_SUCCESS           The options are copied over\r
   @retval EFI_BUFFER_TOO_SMALL  Buf is NULL or BufLen provided is too small.\r