[Change summary]:

1. Update NetLib to a combined NetLib support dual network stack:
1) Add Network Debug facility for IPv4 stack.
2) Extend the library APIs to support IPv6 stack:
   a. NetIp6IsUnspecifiedAddr
   b. NetIp6IsLinkLocalAddr   
   c. NetIp6IsNetEqual
   d. NetLibCreateIPv6DPathNode.
   e. NetIp6PseudoHeadChecksum
   f. NetIp6IsValidUnicast
3) Update the structure definitions:
   a. Update NET_BUF to add EFI_IP6_HEADER and EFI_UDP_HEADER
   b. Add NET_IP6_PSEUDO_HDR
4) Update Ip4IsUnicast to NetIp4IsUnicast

2. Update the impacted modules to adopt the combined NetLib.

3. Clean up coding style errors in all network drivers and libraries.


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9391 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Io.h

@@ -31,36 +31,30 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define DHCP_SERVER_PORT                  67
 #define DHCP_CLIENT_PORT                  68
 
-typedef enum {
-  //
-  // BOOTP header "op" field
-  //
-  BOOTP_REQUEST           = 1,
-  BOOTP_REPLY             = 2
-} DHCP_OP_TYPE;
+//
+// BOOTP header "op" field
+//
+#define BOOTP_REQUEST           1
+#define BOOTP_REPLY             2
 
-typedef enum {
-  //
-  // DHCP message types
-  //
-  DHCP_MSG_DISCOVER       = 1,
-  DHCP_MSG_OFFER          = 2,
-  DHCP_MSG_REQUEST        = 3,
-  DHCP_MSG_DECLINE        = 4,
-  DHCP_MSG_ACK            = 5,
-  DHCP_MSG_NAK            = 6,
-  DHCP_MSG_RELEASE        = 7,
-  DHCP_MSG_INFORM         = 8
-} DHCP_MSG_TYPE;
+//
+// DHCP message types
+//
+#define DHCP_MSG_DISCOVER       1
+#define DHCP_MSG_OFFER          2
+#define DHCP_MSG_REQUEST        3
+#define DHCP_MSG_DECLINE        4
+#define DHCP_MSG_ACK            5
+#define DHCP_MSG_NAK            6
+#define DHCP_MSG_RELEASE        7
+#define DHCP_MSG_INFORM         8
 
-typedef enum {
-  //
-  // DHCP notify user type
-  //
-  DHCP_NOTIFY_COMPLETION  = 1,
-  DHCP_NOTIFY_RENEWREBIND,
-  DHCP_NOTIFY_ALL
-} DHCP_NOTIFY_TYPE;
+//
+// DHCP notify user type
+//
+#define DHCP_NOTIFY_COMPLETION  1
+#define DHCP_NOTIFY_RENEWREBIND 2
+#define DHCP_NOTIFY_ALL         3
 
 #define DHCP_IS_BOOTP(Parameter)  (((Parameter) == NULL) || ((Parameter)->DhcpType == 0))