sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

MdeModulePkg Ip4Dxe: Ip4Config2 to request DHCP Option6 DNS server IP

Browse Source 
Ip4Config2 protocol implementation must request for DNS server info when the
policy is set to DHCP. And when a DHCP server responds to it with a list of
DNS server addresses, it must parse it and set it for the instance. Without
this, nobody can do a Ip4Config->GetData for DNS server IPs before calling
Dns->Configure(). This will mean a DHCP is initiated when calling
Dns->Configure(), thus causing serious performance issues. This patch
attempts to address this issue.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@hpe.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Samer El-Haj-Mahmoud <elhaj@hpe.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18560 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Samer El-Haj-Mahmoud
2015-09-30 03:01:13 +00:00
committed by sfu5
parent 33ecfa8af9
commit 9feefde0cb
2 changed files with 168 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Config2Impl.h
View File

@@ -2,6 +2,7 @@
Definitions for EFI IPv4 Configuration II Protocol implementation.
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -27,7 +28,7 @@
#define DHCP_TAG_PARA_LIST 55
#define DHCP_TAG_NETMASK 1
#define DHCP_TAG_ROUTER 3
#define DHCP_TAG_DNS_SERVER 6
#define DATA_ATTRIB_SET(Attrib, Bits) (BOOLEAN)((Attrib) & (Bits))
#define SET_DATA_ATTRIB(Attrib, Bits) ((Attrib) |= (Bits))
@@ -207,6 +208,7 @@ struct _IP4_CONFIG2_INSTANCE {
typedef struct {
EFI_DHCP4_PACKET_OPTION Head;
UINT8 Route;
UINT8 Dns;
} IP4_CONFIG2_DHCP4_OPTION;
#pragma pack()