MdeModulePkg/Ip4Dxe: Add Ip/Netmask pair check for Ip4Config2

[mirror_edk2.git] / MdeModulePkg / Universal / Network / Ip4Dxe / Ip4Impl.c

diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
index 91f1a67370e79279abfe99e895eec2daa6b2b708..5aa3ea137599cde6f4a60cbe6414130d407b0a3f 100644 (file)
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.c
@@ -1,6 +1,6 @@
 /** @file\r
 \r
-Copyright (c) 2005 - 2016, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2005 - 2017, 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
@@ -809,66 +809,6 @@ Ip4CleanProtocol (
 }\r
 \r
 \r
-/**\r
-  Validate that Ip/Netmask pair is OK to be used as station\r
-  address. Only continuous netmasks are supported. and check\r
-  that StationAddress is a unicast address on the newtwork.\r
-\r
-  @param[in]  Ip                 The IP address to validate.\r
-  @param[in]  Netmask            The netmaks of the IP.\r
-\r
-  @retval TRUE                   The Ip/Netmask pair is valid.\r
-  @retval FALSE                  The Ip/Netmask pair is invalid.\r
-\r
-**/\r
-BOOLEAN\r
-Ip4StationAddressValid (\r
-  IN IP4_ADDR               Ip,\r
-  IN IP4_ADDR               Netmask\r
-  )\r
-{\r
-  IP4_ADDR                  NetBrdcastMask;\r
-  INTN                      Len;\r
-  INTN                      Type;\r
-\r
-  //\r
-  // Only support the station address with 0.0.0.0/0 to enable DHCP client.\r
-  //\r
-  if (Netmask == IP4_ALLZERO_ADDRESS) {\r
-    return (BOOLEAN) (Ip == IP4_ALLZERO_ADDRESS);\r
-  }\r
-\r
-  //\r
-  // Only support the continuous net masks\r
-  //\r
-  if ((Len = NetGetMaskLength (Netmask)) == (IP4_MASK_MAX + 1)) {\r
-    return FALSE;\r
-  }\r
-\r
-  //\r
-  // Station address can't be class D or class E address\r
-  //\r
-  if ((Type = NetGetIpClass (Ip)) > IP4_ADDR_CLASSC) {\r
-    return FALSE;\r
-  }\r
-\r
-  //\r
-  // Station address can't be subnet broadcast/net broadcast address\r
-  //\r
-  if ((Ip == (Ip & Netmask)) || (Ip == (Ip | ~Netmask))) {\r
-    return FALSE;\r
-  }\r
-\r
-  NetBrdcastMask = gIp4AllMasks[MIN (Len, Type << 3)];\r
-\r
-  if (Ip == (Ip | ~NetBrdcastMask)) {\r
-    return FALSE;\r
-  }\r
-\r
-  return TRUE;\r
-}\r
-\r
-\r
 /**\r
   Assigns an IPv4 address and subnet mask to this EFI IPv4 Protocol driver instance.\r
 \r