NetworkPkg/Dhcp6Dxe: Check Media status before starting DHCP process.

This patch is to resolve the issue reported @
https://bugzilla.tianocore.org/show_bug.cgi?id=804.

Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Karunakar P <karunakarp@amiindia.co.in>
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/NetworkPkg/Dhcp6Dxe/Dhcp6Impl.c b/NetworkPkg/Dhcp6Dxe/Dhcp6Impl.c
index d8c0ad0d24..1107865f42 100644
--- a/NetworkPkg/Dhcp6Dxe/Dhcp6Impl.c
+++ b/NetworkPkg/Dhcp6Dxe/Dhcp6Impl.c
@@ -1,7 +1,7 @@
 /** @file

   This EFI_DHCP6_PROTOCOL interface implementation.

 

-  Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>

+  Copyright (c) 2009 - 2017, 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

@@ -76,6 +76,7 @@ EfiDhcp6Start (
   EFI_TPL                      OldTpl;

   DHCP6_INSTANCE               *Instance;

   DHCP6_SERVICE                *Service;

+  BOOLEAN                      MediaPresent;

 

   if (This == NULL) {

     return EFI_INVALID_PARAMETER;

@@ -101,6 +102,17 @@ EfiDhcp6Start (
   }

 

   OldTpl           = gBS->RaiseTPL (TPL_CALLBACK);

+

+  //

+  // Check Media Satus.

+  //

+  MediaPresent = TRUE;

+  NetLibDetectMedia (Service->Controller, &MediaPresent);

+  if (!MediaPresent) {

+    Status = EFI_NO_MEDIA;

+    goto ON_ERROR;

+  }

+

   Instance->UdpSts = EFI_ALREADY_STARTED;

 

   //