Add additional delay in DHCP6 InfoRequest interface to wait for link local address DAD to finish.

Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: qianouyang <qian.ouyang@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13664 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 15 insertions, 1 deletions

diff --git a/NetworkPkg/Dhcp6Dxe/Dhcp6Driver.c b/NetworkPkg/Dhcp6Dxe/Dhcp6Driver.c
index 54ef2e2783..b789f2a478 100644
--- a/NetworkPkg/Dhcp6Dxe/Dhcp6Driver.c
+++ b/NetworkPkg/Dhcp6Dxe/Dhcp6Driver.c
@@ -2,7 +2,7 @@
   Driver Binding functions and Service Binding functions

   implementationfor for Dhcp6 Driver.

 

-  Copyright (c) 2009 - 2011, Intel Corporation. All rights reserved.<BR>

+  Copyright (c) 2009 - 2012, 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

@@ -132,6 +132,7 @@ Dhcp6CreateService (
   )

 {

   DHCP6_SERVICE             *Dhcp6Srv;

+  EFI_STATUS                Status;

 

   *Service = NULL;

   Dhcp6Srv = AllocateZeroPool (sizeof (DHCP6_SERVICE));

@@ -166,6 +167,19 @@ Dhcp6CreateService (
     );

 

   //

+  // Locate Ip6->Ip6Config and store it for get IP6 Duplicate Address Detection transmits.

+  //

+  Status = gBS->HandleProtocol (

+                  Controller,

+                  &gEfiIp6ConfigProtocolGuid,

+                  (VOID **) &Dhcp6Srv->Ip6Cfg

+                  );

+  if (EFI_ERROR (Status)) {

+    FreePool (Dhcp6Srv);

+    return Status;

+  }

+

+  //

   // Generate client Duid: If SMBIOS system UUID is located, generate DUID in DUID-UUID format.

   // Otherwise, in DUID-LLT format.

   //