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[mirror_edk2.git] / MdeModulePkg / Universal / Network / Tcp4Dxe / Socket.h

/** @file\r
\r
Copyright (c) 2005 - 2006, Intel Corporation\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
Module Name:\r
\r
  Socket.h\r
\r
Abstract:\r
\r
\r
**/\r
\r
#ifndef _SOCKET_H_\r
#define _SOCKET_H_\r
\r
#include <PiDxe.h>\r
\r
#include <Protocol/IP4.h>\r
#include <Protocol/Tcp4.h>\r
#include <Protocol/Udp4.h>\r
\r
#include <Library/NetLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/UefiRuntimeServicesTableLib.h>\r
#include <Library/UefiDriverEntryPoint.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/UefiLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/BaseMemoryLib.h>\r
\r
#define SOCK_SND_BUF        0\r
#define SOCK_RCV_BUF        1\r
\r
#define SOCK_BUFF_LOW_WATER 2 * 1024\r
#define SOCK_RCV_BUFF_SIZE  8 * 1024\r
#define SOCK_SND_BUFF_SIZE  8 * 1024\r
#define SOCK_BACKLOG        5\r
\r
#define PROTO_RESERVED_LEN  20\r
\r
#define SO_NO_MORE_DATA     0x0001\r
\r
//\r
//\r
//\r
// When a socket is created it enters into SO_UNCONFIGURED,\r
// no actions can be taken on this socket, only after calling\r
// SockConfigure. The state transition diagram of socket is\r
// as following:\r
//\r
// SO_UNCONFIGURED --- SO_CONFIGURED --- SO_CONNECTING\r
//  ^      |                                    |\r
//  |      --->  SO_LISTENING                   |\r
//  |                                           |\r
//  |------------------SO_DISCONNECTING<-- SO_CONNECTED\r
//\r
// A passive socket can only go into SO_LISTENING and\r
// SO_UNCONFIGURED state. SO_XXXING state is a middle state\r
// when a socket is undergoing a protocol procedure such\r
// as requesting a TCP connection.\r
//\r
//\r
//\r
typedef enum {\r
  SO_CLOSED       = 0,\r
  SO_LISTENING,\r
  SO_CONNECTING,\r
  SO_CONNECTED,\r
  SO_DISCONNECTING\r
} SOCK_STATE;\r
\r
typedef enum {\r
  SO_UNCONFIGURED       = 0,\r
  SO_CONFIGURED_ACTIVE,\r
  SO_CONFIGURED_PASSIVE,\r
  SO_NO_MAPPING\r
} SOCK_CONFIGURE_STATE;\r
\r
#define SOCK_NO_MORE_DATA(Sock)     ((Sock)->Flag |= SO_NO_MORE_DATA)\r
\r
#define SOCK_IS_UNCONFIGURED(Sock)  ((Sock)->ConfigureState == SO_UNCONFIGURED)\r
\r
#define SOCK_IS_CONFIGURED(Sock) \\r
    (((Sock)->ConfigureState == SO_CONFIGURED_ACTIVE) || \\r
    ((Sock)->ConfigureState == SO_CONFIGURED_PASSIVE))\r
\r
#define SOCK_IS_CONFIGURED_ACTIVE(Sock) \\r
  ((Sock)->ConfigureState == SO_CONFIGURED_ACTIVE)\r
\r
#define SOCK_IS_CONNECTED_PASSIVE(Sock) \\r
  ((Sock)->ConfigureState == SO_CONFIGURED_PASSIVE)\r
\r
#define SOCK_IS_NO_MAPPING(Sock) \\r
  ((Sock)->ConfigureState == SO_NO_MAPPING)\r
\r
#define SOCK_IS_CLOSED(Sock)         ((Sock)->State == SO_CLOSED)\r
\r
#define SOCK_IS_LISTENING(Sock)      ((Sock)->State == SO_LISTENING)\r
\r
#define SOCK_IS_CONNECTING(Sock)     ((Sock)->State == SO_CONNECTING)\r
\r
#define SOCK_IS_CONNECTED(Sock)      ((Sock)->State == SO_CONNECTED)\r
\r
#define SOCK_IS_DISCONNECTING(Sock)  ((Sock)->State == SO_DISCONNECTING)\r
\r
#define SOCK_IS_NO_MORE_DATA(Sock)   (0 != ((Sock)->Flag & SO_NO_MORE_DATA))\r
\r
#define SOCK_SIGNATURE           EFI_SIGNATURE_32 ('S', 'O', 'C', 'K')\r
\r
#define SOCK_FROM_THIS(a)        CR ((a), SOCKET, NetProtocol, SOCK_SIGNATURE)\r
\r
#define SET_RCV_BUFFSIZE(Sock, Size)  ((Sock)->RcvBuffer.HighWater = (Size))\r
\r
#define GET_RCV_BUFFSIZE(Sock)        ((Sock)->RcvBuffer.HighWater)\r
\r
#define GET_RCV_DATASIZE(Sock)        (((Sock)->RcvBuffer.DataQueue)->BufSize)\r
\r
#define SET_SND_BUFFSIZE(Sock, Size)  ((Sock)->SndBuffer.HighWater = (Size))\r
\r
#define GET_SND_BUFFSIZE(Sock)        ((Sock)->SndBuffer.HighWater)\r
\r
#define GET_SND_DATASIZE(Sock)        (((Sock)->SndBuffer.DataQueue)->BufSize)\r
\r
#define SET_BACKLOG(Sock, Value)      ((Sock)->BackLog = (Value))\r
\r
#define GET_BACKLOG(Sock)             ((Sock)->BackLog)\r
\r
#define SOCK_ERROR(Sock, Error)       ((Sock)->SockError = (Error))\r
\r
#define SND_BUF_HDR_LEN(Sock) \\r
  ((SockBufFirst (&((Sock)->SndBuffer)))->TotalSize)\r
\r
#define RCV_BUF_HDR_LEN(Sock) \\r
  ((SockBufFirst (&((Sock)->RcvBuffer)))->TotalSize)\r
\r
#define SOCK_FROM_TOKEN(Token)        (((SOCK_TOKEN *) (Token))->Sock)\r
\r
#define PROTO_TOKEN_FORM_SOCK(SockToken, Type) \\r
  ((Type *) (((SOCK_TOKEN *) (SockToken))->Token))\r
\r
typedef struct _SOCKET SOCKET;\r
\r
typedef struct _SOCK_COMPLETION_TOKEN {\r
  EFI_EVENT   Event;\r
  EFI_STATUS  Status;\r
} SOCK_COMPLETION_TOKEN;\r
\r
typedef struct _SOCK_IO_TOKEN {\r
  SOCK_COMPLETION_TOKEN Token;\r
  union {\r
    VOID  *RxData;\r
    VOID  *TxData;\r
  } Packet;\r
} SOCK_IO_TOKEN;\r
\r
//\r
// the request issued from socket layer to protocol layer\r
//\r
typedef enum {\r
  SOCK_ATTACH,    // attach current socket to a new PCB\r
  SOCK_DETACH,    // detach current socket from the PCB\r
  SOCK_CONFIGURE, // configure attached PCB\r
  SOCK_FLUSH,     // flush attached PCB\r
  SOCK_SND,       // need protocol to send something\r
  SOCK_SNDPUSH,   // need protocol to send pushed data\r
  SOCK_SNDURG,    // need protocol to send urgent data\r
  SOCK_CONSUMED,  // application has retrieved data from socket\r
  SOCK_CONNECT,   // need to connect to a peer\r
  SOCK_CLOSE,     // need to close the protocol process\r
  SOCK_ABORT,     // need to reset the protocol process\r
  SOCK_POLL,      // need to poll to the protocol layer\r
  SOCK_ROUTE,     // need to add a route information\r
  SOCK_MODE,      // need to get the mode data of the protocol\r
  SOCK_GROUP      // need to join a mcast group\r
} SOCK_REQUEST;\r
\r
//\r
// the socket type\r
//\r
typedef enum {\r
  SOCK_DGRAM, // this socket providing datagram service\r
  SOCK_STREAM // this socket providing stream service\r
} SOCK_TYPE;\r
\r
//\r
// the handler of protocol for request from socket\r
//\r
typedef\r
EFI_STATUS\r
(*SOCK_PROTO_HANDLER) (\r
  IN SOCKET       * Socket,  // the socket issuing the request to protocol\r
  IN SOCK_REQUEST Request,   // the request issued by socket\r
  IN VOID *RequestData       // the request related data\r
  );\r
\r
//\r
// the buffer structure of rcvd data and send data used by socket\r
//\r
typedef struct _SOCK_BUFFER {\r
  UINT32        HighWater;  // the buffersize upper limit of sock_buffer\r
  UINT32        LowWater;   // the low warter mark of sock_buffer\r
  NET_BUF_QUEUE *DataQueue; // the queue to buffer data\r
} SOCK_BUFFER;\r
\r
\r
//\r
// socket provided oprerations for low layer protocol\r
//\r
\r
//\r
// socket provided operations for user interface\r
//\r
VOID\r
SockSetState (\r
  IN SOCKET     *Sock,\r
  IN SOCK_STATE State\r
  );\r
\r
//\r
// when the connection establishment process for a Sock\r
// is finished low layer protocol calling this function\r
// to notify socket layer\r
//\r
VOID\r
SockConnEstablished (\r
  IN SOCKET *Sock\r
  );\r
\r
VOID\r
SockConnClosed (\r
  IN SOCKET *Sock\r
  );\r
\r
//\r
// called by low layer protocol to trim send buffer of\r
// Sock, when Count data is sent out completely\r
//\r
VOID\r
SockDataSent (\r
  IN SOCKET  *Sock,\r
  IN UINT32  Count\r
  );\r
\r
//\r
// called by low layer protocol to get Len of data from\r
// socket to send and copy it in Dest\r
//\r
UINT32\r
SockGetDataToSend (\r
  IN SOCKET *Sock,\r
  IN UINT32 Offset,\r
  IN UINT32 Len,\r
  IN UINT8  *Dest\r
  );\r
\r
//\r
//  called by low layer protocol to notify socket no more data can be\r
//  received\r
//\r
VOID\r
SockNoMoreData (\r
  IN SOCKET *Sock\r
  );\r
\r
//\r
// called by low layer protocol to append a NetBuffer\r
// to rcv buffer of sock\r
//\r
VOID\r
SockDataRcvd (\r
  IN SOCKET    *Sock,\r
  IN NET_BUF   *NetBuffer,\r
  IN UINT32     UrgLen\r
  );\r
\r
UINT32\r
SockGetFreeSpace (\r
  IN SOCKET   *Sock,\r
  IN UINT32   Which\r
  );\r
\r
SOCKET  *\r
SockClone (\r
  IN SOCKET *Sock\r
  );\r
\r
VOID\r
SockRcvdErr (\r
  IN SOCKET       *Sock,\r
  IN EFI_STATUS   Error\r
  );\r
\r
typedef\r
EFI_STATUS\r
(*SOCK_CREATE_CALLBACK) (\r
  IN SOCKET  *This,\r
  IN VOID    *Context\r
  );\r
\r
typedef\r
VOID\r
(*SOCK_DESTROY_CALLBACK) (\r
  IN SOCKET  *This,\r
  IN VOID    *Context\r
  );\r
\r
//\r
// the initialize data for create a new socket\r
//\r
typedef struct _SOCK_INIT_DATA {\r
  SOCK_TYPE   Type;\r
  SOCK_STATE  State;\r
\r
  SOCKET      *Parent;        // the parent of this socket\r
  UINT32      BackLog;        // the connection limit for listening socket\r
  UINT32      SndBufferSize;  // the high warter mark of send buffer\r
  UINT32      RcvBufferSize;  // the high warter mark of receive buffer\r
  VOID        *Protocol;      // the pointer to protocol function template\r
                              // wanted to install on socket\r
\r
  //\r
  // Callbacks after socket is created and before socket is to be destroyed.\r
  //\r
  SOCK_CREATE_CALLBACK   CreateCallback;\r
  SOCK_DESTROY_CALLBACK  DestroyCallback;\r
  VOID                   *Context;\r
\r
  //\r
  // Opaque protocol data.\r
  //\r
  VOID                   *ProtoData;\r
  UINT32                 DataSize;\r
\r
  SOCK_PROTO_HANDLER     ProtoHandler;\r
\r
  EFI_HANDLE   DriverBinding; // the driver binding handle\r
} SOCK_INIT_DATA;\r
//\r
// the socket structure representing a network service access point\r
//\r
struct _SOCKET {\r
\r
  //\r
  // socket description information\r
  //\r
  UINT32                Signature;\r
  EFI_HANDLE            SockHandle;     // the virtual handle of the socket\r
  EFI_HANDLE            DriverBinding;  // socket't driver binding protocol\r
  EFI_DEVICE_PATH_PROTOCOL  *ParentDevicePath;\r
  EFI_DEVICE_PATH_PROTOCOL  *DevicePath;\r
  NET_LIST_ENTRY            Link;  \r
  SOCK_CONFIGURE_STATE  ConfigureState;\r
  SOCK_TYPE             Type;\r
  SOCK_STATE            State;\r
  UINT16                Flag;\r
  NET_LOCK              Lock;       // the lock of socket\r
  SOCK_BUFFER           SndBuffer;  // send buffer of application's data\r
  SOCK_BUFFER           RcvBuffer;  // receive buffer of received data\r
  EFI_STATUS            SockError;  // the error returned by low layer protocol\r
  BOOLEAN               IsDestroyed;\r
\r
  //\r
  // fields used to manage the connection request\r
  //\r
  UINT32          BackLog;        // the limit of connection to this socket\r
  UINT32          ConnCnt;        // the current count of connections to it\r
  SOCKET          *Parent;        // listening parent that accept the connection\r
  NET_LIST_ENTRY  ConnectionList; // the connections maintained by this socket\r
  //\r
  // the queue to buffer application's asynchronous token\r
  //\r
  NET_LIST_ENTRY  ListenTokenList;\r
  NET_LIST_ENTRY  RcvTokenList;\r
  NET_LIST_ENTRY  SndTokenList;\r
  NET_LIST_ENTRY  ProcessingSndTokenList;\r
\r
  SOCK_COMPLETION_TOKEN *ConnectionToken; // app's token to signal if connected\r
  SOCK_COMPLETION_TOKEN *CloseToken;      // app's token to signal if closed\r
\r
  //\r
  // interface for low level protocol\r
  //\r
  SOCK_PROTO_HANDLER    ProtoHandler; // the request handler of protocol\r
  UINT8 ProtoReserved[PROTO_RESERVED_LEN];  // Data fields reserved for protocol\r
  union {\r
    EFI_TCP4_PROTOCOL TcpProtocol;\r
    EFI_UDP4_PROTOCOL UdpProtocol;\r
  } NetProtocol;\r
\r
  //\r
  // Callbacks.\r
  //\r
  SOCK_CREATE_CALLBACK   CreateCallback;\r
  SOCK_DESTROY_CALLBACK  DestroyCallback;\r
  VOID                   *Context;\r
};\r
\r
//\r
// the token structure buffered in socket layer\r
//\r
typedef struct _SOCK_TOKEN {\r
  NET_LIST_ENTRY        TokenList;      // the entry to add in the token list\r
  SOCK_COMPLETION_TOKEN *Token;         // The application's token\r
  UINT32                RemainDataLen;  // unprocessed data length\r
  SOCKET                *Sock;          // the poninter to the socket this token\r
                                        // belongs to\r
} SOCK_TOKEN;\r
\r
//\r
// reserved data to access the NET_BUF delivered by UDP driver\r
//\r
typedef struct _UDP_RSV_DATA {\r
  EFI_TIME              TimeStamp;\r
  EFI_UDP4_SESSION_DATA Session;\r
} UDP_RSV_DATA;\r
\r
//\r
// reserved data to access the NET_BUF delivered by TCP driver\r
//\r
typedef struct _TCP_RSV_DATA {\r
  UINT32 UrgLen;\r
} TCP_RSV_DATA;\r
\r
//\r
// call it to creat a socket and attach it to a PCB\r
//\r
SOCKET  *\r
SockCreateChild (\r
  IN SOCK_INIT_DATA *SockInitData\r
  );\r
\r
//\r
// call it to destroy a socket and its related PCB\r
//\r
EFI_STATUS\r
SockDestroyChild (\r
  IN SOCKET *Sock\r
  );\r
\r
//\r
// call it to configure a socket and its related PCB\r
//\r
EFI_STATUS\r
SockConfigure (\r
  IN SOCKET *Sock,\r
  IN VOID   *ConfigData\r
  );\r
\r
//\r
// call it to connect a socket to the peer\r
//\r
EFI_STATUS\r
SockConnect (\r
  IN SOCKET *Sock,\r
  IN VOID   *Token\r
  );\r
\r
//\r
// call it to issue an asynchronous listen token to the socket\r
//\r
EFI_STATUS\r
SockAccept (\r
  IN SOCKET *Sock,\r
  IN VOID   *Token\r
  );\r
\r
//\r
// Call it to send data using this socket\r
//\r
EFI_STATUS\r
SockSend (\r
  IN SOCKET *Sock,\r
  IN VOID   *Token\r
  );\r
\r
//\r
// Call it to receive data from this socket\r
//\r
EFI_STATUS\r
SockRcv (\r
  IN SOCKET *Sock,\r
  IN VOID   *Token\r
  );\r
\r
//\r
// Call it to flush a socket\r
//\r
EFI_STATUS\r
SockFlush (\r
  IN SOCKET *Sock\r
  );\r
\r
//\r
// Call it to close a socket in the light of policy in Token\r
//\r
EFI_STATUS\r
SockClose (\r
  IN SOCKET  *Sock,\r
  IN VOID    *Token,\r
  IN BOOLEAN OnAbort\r
  );\r
\r
//\r
// Call it to get the mode data of low layer protocol\r
//\r
EFI_STATUS\r
SockGetMode (\r
  IN SOCKET *Sock,\r
  IN VOID   *Mode\r
  );\r
\r
//\r
// call it to add this socket instance into a group\r
//\r
EFI_STATUS\r
SockGroup (\r
  IN SOCKET *Sock,\r
  IN VOID   *GroupInfo\r
  );\r
\r
//\r
// call it to add a route entry for this socket instance\r
//\r
EFI_STATUS\r
SockRoute (\r
  IN SOCKET    *Sock,\r
  IN VOID      *RouteInfo\r
  );\r
\r
//\r
// Supporting function to operate on socket buffer\r
//\r
NET_BUF *\r
SockBufFirst (\r
  IN SOCK_BUFFER *Sockbuf\r
  );\r
\r
NET_BUF *\r
SockBufNext (\r
  IN SOCK_BUFFER *Sockbuf,\r
  IN NET_BUF     *SockEntry\r
  );\r
\r
#endif\r