MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.h

   1 /** @file
   2
   3   Mtftp4 Implementation.
   4
   5   Mtftp4 Implementation, it supports the following RFCs:
   6   RFC1350 - THE TFTP PROTOCOL (REVISION 2)
   7   RFC2090 - TFTP Multicast Option
   8   RFC2347 - TFTP Option Extension
   9   RFC2348 - TFTP Blocksize Option
  10   RFC2349 - TFTP Timeout Interval and Transfer Size Options
  11
  12 Copyright (c) 2006 - 2009, Intel Corporation<BR>
  13 All rights reserved. This program and the accompanying materials
  14 are licensed and made available under the terms and conditions of the BSD License
  15 which accompanies this distribution.  The full text of the license may be found at
  16 http://opensource.org/licenses/bsd-license.php<BR>
  17
  18 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  19 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  20
  21 **/
  22
  23
  24 #ifndef __EFI_MTFTP4_IMPL_H__
  25 #define __EFI_MTFTP4_IMPL_H__
  26
  27 #include <Uefi.h>
  28
  29 #include <Protocol/Udp4.h>
  30 #include <Protocol/Mtftp4.h>
  31
  32 #include <Library/DebugLib.h>
  33 #include <Library/BaseMemoryLib.h>
  34 #include <Library/MemoryAllocationLib.h>
  35 #include <Library/UefiBootServicesTableLib.h>
  36 #include <Library/UdpIoLib.h>
  37
  38 extern EFI_MTFTP4_PROTOCOL  gMtftp4ProtocolTemplate;
  39
  40 typedef struct _MTFTP4_SERVICE  MTFTP4_SERVICE;
  41 typedef struct _MTFTP4_PROTOCOL MTFTP4_PROTOCOL;
  42
  43 #include "Mtftp4Driver.h"
  44 #include "Mtftp4Option.h"
  45 #include "Mtftp4Support.h"
  46
  47
  48 ///
  49 /// Some constant value of Mtftp service.
  50 ///
  51 typedef enum {
  52   MTFTP4_SERVICE_SIGNATURE   = SIGNATURE_32 ('T', 'F', 'T', 'P'),
  53   MTFTP4_PROTOCOL_SIGNATURE  = SIGNATURE_32 ('t', 'f', 't', 'p'),
  54
  55   MTFTP4_DEFAULT_SERVER_PORT = 69,
  56   MTFTP4_DEFAULT_TIMEOUT     = 3,
  57   MTFTP4_DEFAULT_RETRY       = 5,
  58   MTFTP4_DEFAULT_BLKSIZE     = 512,
  59   MTFTP4_TIME_TO_GETMAP      = 5,
  60
  61   MTFTP4_STATE_UNCONFIGED    = 0,
  62   MTFTP4_STATE_CONFIGED,
  63   MTFTP4_STATE_DESTORY
  64 } MTFTP4_SERVICE_CONST_VALUE;
  65
  66 ///
  67 /// Mtftp service block
  68 ///
  69 struct _MTFTP4_SERVICE {
  70   UINT32                        Signature;
  71   EFI_SERVICE_BINDING_PROTOCOL  ServiceBinding;
  72
  73   BOOLEAN                       InDestory;
  74
  75   UINT16                        ChildrenNum;
  76   LIST_ENTRY                    Children;
  77
  78   EFI_EVENT                     Timer;  ///< Ticking timer for all the MTFTP clients
  79   EFI_EVENT                     TimerToGetMap;
  80
  81   EFI_HANDLE                    Controller;
  82   EFI_HANDLE                    Image;
  83
  84   //
  85   // This UDP child is used to keep the connection between the UDP
  86   // and MTFTP, so MTFTP will be notified when UDP is uninstalled.
  87   //
  88   UDP_IO_PORT                   *ConnectUdp;
  89 };
  90
  91
  92 typedef struct {
  93   EFI_MTFTP4_PACKET             **Packet;
  94   UINT32                        *PacketLen;
  95   EFI_STATUS                    Status;
  96 } MTFTP4_GETINFO_STATE;
  97
  98 struct _MTFTP4_PROTOCOL {
  99   UINT32                        Signature;
 100   LIST_ENTRY                    Link;
 101   EFI_MTFTP4_PROTOCOL           Mtftp4;
 102
 103   INTN                          State;
 104   BOOLEAN                       InDestory;
 105
 106   MTFTP4_SERVICE                *Service;
 107   EFI_HANDLE                    Handle;
 108
 109   EFI_MTFTP4_CONFIG_DATA        Config;
 110
 111   //
 112   // Operation parameters: token and requested options.
 113   //
 114   EFI_MTFTP4_TOKEN              *Token;
 115   MTFTP4_OPTION                 RequestOption;
 116   UINT16                        Operation;
 117
 118   //
 119   // Blocks is a list of MTFTP4_BLOCK_RANGE which contains
 120   // holes in the file
 121   //
 122   UINT16                        BlkSize;
 123   UINT16                        LastBlock;
 124   LIST_ENTRY                    Blocks;
 125
 126   //
 127   // The server's communication end point: IP and two ports. one for
 128   // initial request, one for its selected port.
 129   //
 130   IP4_ADDR                      ServerIp;
 131   UINT16                        ListeningPort;
 132   UINT16                        ConnectedPort;
 133   IP4_ADDR                      Gateway;
 134   UDP_IO_PORT                   *UnicastPort;
 135
 136   //
 137   // Timeout and retransmit status
 138   //
 139   NET_BUF                       *LastPacket;
 140   UINT32                        PacketToLive;
 141   UINT32                        CurRetry;
 142   UINT32                        MaxRetry;
 143   UINT32                        Timeout;
 144
 145   //
 146   // Parameter used by RRQ's multicast download.
 147   //
 148   IP4_ADDR                      McastIp;
 149   UINT16                        McastPort;
 150   BOOLEAN                       Master;
 151   UDP_IO_PORT                   *McastUdpPort;
 152 };
 153
 154 /**
 155   Clean up the MTFTP session to get ready for new operation.
 156
 157   @param  Instance               The MTFTP session to clean up
 158   @param  Result                 The result to return to the caller who initiated
 159                                  the operation.
 160 **/
 161 VOID
 162 Mtftp4CleanOperation (
 163   IN OUT MTFTP4_PROTOCOL        *Instance,
 164   IN     EFI_STATUS             Result
 165   );
 166
 167 /**
 168   Start the MTFTP session for upload.
 169
 170   It will first init some states, then send the WRQ request packet,
 171   and start receiving the packet.
 172
 173   @param  Instance              The MTFTP session
 174   @param  Operation             Redundant parameter, which is always
 175                                 EFI_MTFTP4_OPCODE_WRQ here.
 176
 177   @retval EFI_SUCCESS           The upload process has been started.
 178   @retval Others                Failed to start the upload.
 179
 180 **/
 181 EFI_STATUS
 182 Mtftp4WrqStart (
 183   IN MTFTP4_PROTOCOL        *Instance,
 184   IN UINT16                 Operation
 185   );
 186
 187 /**
 188   Start the MTFTP session to download.
 189
 190   It will first initialize some of the internal states then build and send a RRQ
 191   reqeuest packet, at last, it will start receive for the downloading.
 192
 193   @param  Instance              The Mtftp session
 194   @param  Operation             The MTFTP opcode, it may be a EFI_MTFTP4_OPCODE_RRQ
 195                                 or EFI_MTFTP4_OPCODE_DIR.
 196
 197   @retval EFI_SUCCESS           The mtftp download session is started.
 198   @retval Others                Failed to start downloading.
 199
 200 **/
 201 EFI_STATUS
 202 Mtftp4RrqStart (
 203   IN MTFTP4_PROTOCOL        *Instance,
 204   IN UINT16                 Operation
 205   );
 206
 207 #define MTFTP4_SERVICE_FROM_THIS(a)   \
 208   CR (a, MTFTP4_SERVICE, ServiceBinding, MTFTP4_SERVICE_SIGNATURE)
 209
 210 #define MTFTP4_PROTOCOL_FROM_THIS(a)  \
 211   CR (a, MTFTP4_PROTOCOL, Mtftp4, MTFTP4_PROTOCOL_SIGNATURE)
 212
 213 #endif