X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdeModulePkg%2FUniversal%2FNetwork%2FIp4Dxe%2FIp4Impl.h;h=ddca6ce897f6ecdee0e46d1af6ec2b50893bf473;hb=3028d73e5a4073841fdfc94b1e984c92e8e8fa7a;hp=7a7ad9d785a15d05cd9213c5e5c384cce255a58e;hpb=ac6c3d90edebf1499dac8f4d3c99e94d197ad45e;p=mirror_edk2.git

diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.h b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.h
index 7a7ad9d785..ddca6ce897 100644
--- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.h
+++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Impl.h
@@ -1,7 +1,7 @@
 /** @file
   Ip4 internal functions and type defintions.
-  
-Copyright (c) 2005 - 2016, Intel Corporation. All rights reserved.<BR>
+
+Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
 (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
 
 This program and the accompanying materials
@@ -64,12 +64,10 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 //
 // The state of IP4 protocol. It starts from UNCONFIGED. if it is
 // successfully configured, it goes to CONFIGED. if configure NULL
-// is called, it becomes UNCONFIGED again. If (partly) destroyed, it
-// becomes DESTROY.
+// is called, it becomes UNCONFIGED again.
 //
 #define IP4_STATE_UNCONFIGED    0
 #define IP4_STATE_CONFIGED      1
-#define IP4_STATE_DESTROY       2
 
 //
 // The state of IP4 service. It starts from UNSTARTED. It transits
@@ -136,6 +134,8 @@ struct _IP4_PROTOCOL {
   EFI_HANDLE                Handle;
   INTN                      State;
 
+  BOOLEAN                   InDestroy;
+
   IP4_SERVICE               *Service;
   LIST_ENTRY                Link;       // Link to all the IP protocol from the service
 
@@ -206,13 +206,13 @@ struct _IP4_SERVICE {
   EFI_SIMPLE_NETWORK_MODE         SnpMode;
 
   EFI_EVENT                       Timer;
-
+  EFI_EVENT                       ReconfigCheckTimer;
   EFI_EVENT                       ReconfigEvent;
 
   BOOLEAN                         Reconfig;
 
   //
-  // Underlying media present status. 
+  // Underlying media present status.
   //
   BOOLEAN                         MediaPresent;
 
@@ -334,10 +334,9 @@ Ip4Groups (
   );
 
 /**
-  The heart beat timer of IP4 service instance. It times out
-  all of its IP4 children's received-but-not-delivered and
-  transmitted-but-not-recycle packets, and provides time input
-  for its IGMP protocol.
+  This heart beat timer of IP4 service instance times out all of its IP4 children's
+  received-but-not-delivered and transmitted-but-not-recycle packets, and provides
+  time input for its IGMP protocol.
 
   @param[in]  Event                  The IP4 service instance's heart beat timer.
   @param[in]  Context                The IP4 service instance.
@@ -350,6 +349,25 @@ Ip4TimerTicking (
   IN VOID                   *Context
   );
 
+/**
+  This dedicated timer is used to poll underlying network media status. In case
+  of cable swap or wireless network switch, a new round auto configuration will
+  be initiated. The timer will signal the IP4 to run DHCP configuration again.
+  IP4 driver will free old IP address related resource, such as route table and
+  Interface, then initiate a DHCP process to acquire new IP, eventually create
+  route table for new IP address.
+
+  @param[in]  Event                  The IP4 service instance's heart beat timer.
+  @param[in]  Context                The IP4 service instance.
+
+**/
+VOID
+EFIAPI
+Ip4TimerReconfigChecking (
+  IN EFI_EVENT              Event,
+  IN VOID                   *Context
+  );
+
 /**
   Decrease the life of the transmitted packets. If it is
   decreased to zero, cancel the packet. This function is