From 434ce3feca7f5a430db3d5853c54a06343d02ed2 Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 8 Jun 2009 02:13:36 +0000
Subject: sync tracker:PXE misused the parameter of second since boot in DHCP
 header.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8496 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Universal/Network/Dhcp4Dxe/Dhcp4Impl.h         |  5 ++-
 MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.c  | 47 +++++++++++++++++-----
 2 files changed, 39 insertions(+), 13 deletions(-)

(limited to 'MdeModulePkg/Universal/Network/Dhcp4Dxe')

diff --git a/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Impl.h b/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Impl.h
index fa75215dad..36f3ecb819 100644
--- a/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Impl.h
+++ b/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Impl.h
@@ -6,7 +6,7 @@
   RFC 1534: Interoperation Between DHCP and BOOTP
   RFC 3396: Encoding Long Options in DHCP.
   
-Copyright (c) 2006 - 2008, Intel Corporation.<BR>
+Copyright (c) 2006 - 2009, Intel Corporation.<BR>
 All rights reserved. This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -110,7 +110,7 @@ struct _DHCP_SERVICE {
 
   UDP_IO_PORT                   *UdpIo;       // Udp child receiving all DHCP message
   UDP_IO_PORT                   *LeaseIoPort; // Udp child with lease IP
-  NET_BUF                       *LastPacket;  // The last sent packet for retransmission
+  EFI_DHCP4_PACKET              *LastPacket;  // The last sent packet for retransmission
   EFI_MAC_ADDRESS               Mac;
   UINT8                         HwType;
   UINT8                         HwLen;
@@ -126,6 +126,7 @@ struct _DHCP_SERVICE {
   EFI_EVENT                     Timer;
 
   UINT32                        PacketToLive; // Retransmission timer for our packets
+  UINT32                        LastTimeout;  // Record the init value of PacketToLive every time
   INTN                          CurRetry;
   INTN                          MaxRetries;
   UINT32                        LeaseLife;
diff --git a/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.c b/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.c
index 7c48340d8b..dc9b0412a8 100644
--- a/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.c
+++ b/MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.c
@@ -1,7 +1,7 @@
 /** @file
   EFI DHCP protocol implementation.
   
-Copyright (c) 2006 - 2008, Intel Corporation.<BR>
+Copyright (c) 2006 - 2009, Intel Corporation.<BR>
 All rights reserved. This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -227,7 +227,7 @@ DhcpSetState (
 
   DhcpSb->CurRetry      = 0;
   DhcpSb->PacketToLive  = 0;
-
+  DhcpSb->LastTimeout   = 0;
   DhcpSb->DhcpState     = State;
   return EFI_SUCCESS;
 }
@@ -260,6 +260,7 @@ DhcpSetTransmitTimer (
   }
 
   DhcpSb->PacketToLive = Times[DhcpSb->CurRetry];
+  DhcpSb->LastTimeout  = DhcpSb->PacketToLive;
 
   return;
 }
@@ -470,11 +471,12 @@ DhcpCleanLease (
   }
 
   if (DhcpSb->LastPacket != NULL) {
-    NetbufFree (DhcpSb->LastPacket);
+    FreePool (DhcpSb->LastPacket);
     DhcpSb->LastPacket = NULL;
   }
 
   DhcpSb->PacketToLive  = 0;
+  DhcpSb->LastTimeout   = 0;
   DhcpSb->CurRetry      = 0;
   DhcpSb->MaxRetries    = 0;
   DhcpSb->LeaseLife     = 0;
@@ -1353,11 +1355,10 @@ DhcpSendMessage (
   // Save it as the last sent packet for retransmission
   //
   if (DhcpSb->LastPacket != NULL) {
-    NetbufFree (DhcpSb->LastPacket);
+    FreePool (DhcpSb->LastPacket);
   }
 
-  NET_GET_REF (Wrap);
-  DhcpSb->LastPacket = Wrap;
+  DhcpSb->LastPacket = Packet;
   DhcpSetTransmitTimer (DhcpSb);
 
   //
@@ -1377,10 +1378,19 @@ DhcpSendMessage (
   }
 
   ASSERT (UdpIo != NULL);
-  Status = UdpIoSendDatagram (UdpIo, Wrap, &EndPoint, 0, DhcpOnPacketSent, DhcpSb);
+  NET_GET_REF (Wrap);
+  
+  Status = UdpIoSendDatagram (
+             UdpIo, 
+             Wrap, 
+             &EndPoint, 
+             0, 
+             DhcpOnPacketSent, 
+             DhcpSb
+             );
 
   if (EFI_ERROR (Status)) {
-    NetbufFree (Wrap);
+    NET_PUT_REF (Wrap);
     return EFI_ACCESS_DENIED;
   }
 
@@ -1405,10 +1415,25 @@ DhcpRetransmit (
 {
   UDP_IO_PORT               *UdpIo;
   UDP_POINTS                EndPoint;
+  NET_BUF                   *Wrap;
+  NET_FRAGMENT              Frag;
   EFI_STATUS                Status;
 
   ASSERT (DhcpSb->LastPacket != NULL);
 
+  DhcpSb->LastPacket->Dhcp4.Header.Seconds = HTONS (*(UINT16 *)(&DhcpSb->LastTimeout));
+
+  //
+  // Wrap it into a netbuf then send it.
+  //
+  Frag.Bulk = (UINT8 *) &DhcpSb->LastPacket->Dhcp4.Header;
+  Frag.Len  = DhcpSb->LastPacket->Length;
+  Wrap      = NetbufFromExt (&Frag, 1, 0, 0, DhcpReleasePacket, DhcpSb->LastPacket);
+
+  if (Wrap == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+  
   //
   // Broadcast the message, unless we know the server address.
   //
@@ -1426,10 +1451,10 @@ DhcpRetransmit (
 
   ASSERT (UdpIo != NULL);
 
-  NET_GET_REF (DhcpSb->LastPacket);
+  NET_GET_REF (Wrap);
   Status = UdpIoSendDatagram (
              UdpIo,
-             DhcpSb->LastPacket,
+             Wrap,
              &EndPoint,
              0,
              DhcpOnPacketSent,
@@ -1437,7 +1462,7 @@ DhcpRetransmit (
              );
 
   if (EFI_ERROR (Status)) {
-    NET_PUT_REF (DhcpSb->LastPacket);
+    NET_PUT_REF (Wrap);
     return EFI_ACCESS_DENIED;
   }
 
-- 
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