NetworkPkg: Move Network library and drivers from MdeModulePkg to NetworkPkg

Signed-off-by: Liming Gao <liming.gao@intel.com>
Cc: Siyuan Fu <siyuan.fu@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Siyuan Fu <siyuan.fu@intel.com>

NetworkPkg/Dhcp4Dxe/Dhcp4Io.h

@@ -0,0 +1,189 @@
+/** @file
+  The DHCP4 protocol implementation.
+
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __EFI_DHCP4_IO_H__
+#define __EFI_DHCP4_IO_H__
+
+#include <Uefi.h>
+
+#include <Protocol/ServiceBinding.h>
+
+#include <Library/NetLib.h>
+#include <Library/UdpIoLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+
+
+#define DHCP_WAIT_OFFER                    3  // Time to wait the offers
+#define DHCP_DEFAULT_LEASE  7 * 24 * 60 * 60  // Seven days as default.
+#define DHCP_SERVER_PORT                  67
+#define DHCP_CLIENT_PORT                  68
+
+//
+// BOOTP header "op" field
+//
+#define BOOTP_REQUEST           1
+#define BOOTP_REPLY             2
+
+//
+// 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
+
+//
+// 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))
+
+#define DHCP_CONNECTED(State)     \
+  (((State) == Dhcp4Bound) || ((State) == (Dhcp4Renewing)) || ((State) == Dhcp4Rebinding))
+
+/**
+  Set the DHCP state. If CallUser is true, it will try to notify
+  the user before change the state by DhcpNotifyUser. It returns
+  EFI_ABORTED if the user return EFI_ABORTED, otherwise, it returns
+  EFI_SUCCESS. If CallUser is FALSE, it isn't necessary to test
+  the return value of this function.
+
+  @param  DhcpSb                The DHCP service instance
+  @param  State                 The new DHCP state to change to
+  @param  CallUser              Whether we need to call user
+
+  @retval EFI_SUCCESS           The state is changed
+  @retval EFI_ABORTED           The user asks to abort the DHCP process.
+
+**/
+EFI_STATUS
+DhcpSetState (
+  IN OUT DHCP_SERVICE           *DhcpSb,
+  IN     INTN                   State,
+  IN     BOOLEAN                CallUser
+  );
+
+/**
+  Build and transmit a DHCP message according to the current states.
+  This function implement the Table 5. of RFC 2131. Always transits
+  the state (as defined in Figure 5. of the same RFC) before sending
+  a DHCP message. The table is adjusted accordingly.
+
+  @param[in]  DhcpSb                The DHCP service instance
+  @param[in]  Seed                  The seed packet which the new packet is based on
+  @param[in]  Para                  The DHCP parameter of the Seed packet
+  @param[in]  Type                  The message type to send
+  @param[in]  Msg                   The human readable message to include in the packet
+                                    sent.
+
+  @retval EFI_OUT_OF_RESOURCES  Failed to allocate resources for the packet
+  @retval EFI_ACCESS_DENIED     Failed to transmit the packet through UDP
+  @retval EFI_SUCCESS           The message is sent
+  @retval other                 Other error occurs
+
+**/
+EFI_STATUS
+DhcpSendMessage (
+  IN DHCP_SERVICE           *DhcpSb,
+  IN EFI_DHCP4_PACKET       *Seed,
+  IN DHCP_PARAMETER         *Para,
+  IN UINT8                  Type,
+  IN UINT8                  *Msg
+  );
+
+/**
+  Each DHCP service has three timer. Two of them are count down timer.
+  One for the packet retransmission. The other is to collect the offers.
+  The third timer increaments the lease life which is compared to T1, T2,
+  and lease to determine the time to renew and rebind the lease.
+  DhcpOnTimerTick will be called once every second.
+
+  @param[in]  Event                 The timer event
+  @param[in]  Context               The context, which is the DHCP service instance.
+
+**/
+VOID
+EFIAPI
+DhcpOnTimerTick (
+  IN EFI_EVENT              Event,
+  IN VOID                   *Context
+  );
+
+/**
+  Handle the received DHCP packets. This function drives the DHCP
+  state machine.
+
+  @param  UdpPacket             The UDP packets received.
+  @param  EndPoint              The local/remote UDP access point
+  @param  IoStatus              The status of the UDP receive
+  @param  Context               The opaque parameter to the function.
+
+**/
+VOID
+EFIAPI
+DhcpInput (
+  NET_BUF                   *UdpPacket,
+  UDP_END_POINT             *EndPoint,
+  EFI_STATUS                IoStatus,
+  VOID                      *Context
+  );
+
+/**
+  Send an initial DISCOVER or REQUEST message according to the
+  DHCP service's current state.
+
+  @param[in]  DhcpSb                The DHCP service instance
+
+  @retval EFI_SUCCESS           The request has been sent
+  @retval other                 Some error occurs when sending the request.
+
+**/
+EFI_STATUS
+DhcpInitRequest (
+  IN DHCP_SERVICE           *DhcpSb
+  );
+
+/**
+  Clean up the DHCP related states, IoStatus isn't reset.
+
+  @param  DhcpSb                The DHCP instance service.
+
+**/
+VOID
+DhcpCleanLease (
+  IN DHCP_SERVICE           *DhcpSb
+  );
+
+/**
+  Release the net buffer when packet is sent.
+
+  @param  UdpPacket             The UDP packets received.
+  @param  EndPoint              The local/remote UDP access point
+  @param  IoStatus              The status of the UDP receive
+  @param  Context               The opaque parameter to the function.
+
+**/
+VOID
+EFIAPI
+DhcpOnPacketSent (
+  NET_BUF                   *Packet,
+  UDP_END_POINT             *EndPoint,
+  EFI_STATUS                IoStatus,
+  VOID                      *Context
+  );
+
+#endif