From c720da286687aed978d9a20bcdd6d303bade9ddc Mon Sep 17 00:00:00 2001
From: Zhang Lubo <lubo.zhang@intel.com>
Date: Fri, 8 Apr 2016 09:44:09 +0800
Subject: NetworkPkg: Add new macros and refine codes

v2:
*refine some codes

Add 2 macros in NetLib.h
#define  IP4_MASK_MAX          32
#define  IP6_PREFIX_MAX        128
we will use these two macros to check the max mask/prefix length,
instead of
#define  IP4_MASK_NUM          33
#define  IP6_PREFIX_NUM        129
which means a valid number
This will make the code readability and maintainability.

Cc: Subramanian Sriram <sriram-s@hpe.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Wu Jiaxin <jiaxin.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Zhang Lubo <lubo.zhang@intel.com>
Reviewed-by: Sriram Subramanian <sriram-s@@hpe.com>
---
 NetworkPkg/Ip6Dxe/Ip6Impl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'NetworkPkg/Ip6Dxe/Ip6Impl.c')

diff --git a/NetworkPkg/Ip6Dxe/Ip6Impl.c b/NetworkPkg/Ip6Dxe/Ip6Impl.c
index b186c0af20..c937423428 100644
--- a/NetworkPkg/Ip6Dxe/Ip6Impl.c
+++ b/NetworkPkg/Ip6Dxe/Ip6Impl.c
@@ -2,7 +2,7 @@
   Implementation of EFI_IP6_PROTOCOL protocol interfaces.
 
   (C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>
-  Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2009 - 2016, Intel Corporation. All rights reserved.<BR>
 
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
@@ -842,7 +842,7 @@ EfiIp6Routes (
   EFI_TPL                   OldTpl;
   IP6_SERVICE               *IpSb;
 
-  if ((This == NULL) || (PrefixLength >= IP6_PREFIX_NUM)) {
+  if ((This == NULL) || (PrefixLength > IP6_PREFIX_MAX)) {
     return EFI_INVALID_PARAMETER;
   }
 
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