Support local bind by validating the IP address using the IP configuration protocol. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-by: Ankit Singh3 <Ankit_Singh3@Dell.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14875 6f19259b-4bc3-4df7-8a09-765794883524
		
			
				
	
	
		
			1689 lines
		
	
	
		
			54 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1689 lines
		
	
	
		
			54 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /** @file
 | |
|   Definitions for the Socket layer driver.
 | |
| 
 | |
|   Copyright (c) 2011, Intel Corporation
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|   All rights reserved. This program and the accompanying materials
 | |
|   are licensed and made available under the terms and conditions of the BSD License
 | |
|   which accompanies this distribution.  The full text of the license may be found at
 | |
|   http://opensource.org/licenses/bsd-license
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| 
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|   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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|   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 
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| **/
 | |
| #ifndef _SOCKET_H_
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| #define _SOCKET_H_
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| 
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| #include <Efi/EfiSocketLib.h>
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| 
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| //------------------------------------------------------------------------------
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| //  Constants
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| //------------------------------------------------------------------------------
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| 
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| #define DEBUG_SOCKET        0x20000000  ///<  Display Socket related messages
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| #define DEBUG_BIND          0x10000000  ///<  Display bind related messages
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| #define DEBUG_LISTEN        0x08000000  ///<  Display listen related messages
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| #define DEBUG_CONNECTION    0x04000000  ///<  Display connection list related messages
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| #define DEBUG_POLL          0x02000000  ///<  Display poll messages
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| #define DEBUG_ACCEPT        0x01000000  ///<  Display accept related messages
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| #define DEBUG_RX            0x00800000  ///<  Display receive messages
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| #define DEBUG_TX            0x00400000  ///<  Display transmit messages
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| #define DEBUG_CLOSE         0x00200000  ///<  Display close messages
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| #define DEBUG_CONNECT       0x00100000  ///<  Display connect messages
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| #define DEBUG_OPTION        0x00080000  ///<  Display option messages
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| 
 | |
| #define MAX_PENDING_CONNECTIONS     1   ///<  Maximum connection FIFO depth
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| #define MAX_RX_DATA         0x01000000  ///<  Maximum receive data size
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| #define MAX_TX_DATA         ( MAX_RX_DATA * 2 ) ///<  Maximum buffered transmit data in bytes
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| #define RX_PACKET_DATA      0x00100000  ///<  Maximum number of bytes in a RX packet
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| #define MAX_UDP_RETRANSMIT  16          ///<  UDP retransmit attempts to handle address not mapped
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| 
 | |
| #define ESL_STRUCTURE_ALIGNMENT_BYTES   15  ///<  Number of bytes for structure alignment
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| #define ESL_STRUCTURE_ALIGNMENT_MASK    ( ~ESL_STRUCTURE_ALIGNMENT_BYTES )  ///<  Mask to align structures
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| 
 | |
| #define LAYER_SIGNATURE           SIGNATURE_32 ('S','k','t','L')  ///<  ESL_LAYER memory signature
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| #define SERVICE_SIGNATURE         SIGNATURE_32 ('S','k','t','S')  ///<  ESL_SERVICE memory signature
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| #define SOCKET_SIGNATURE          SIGNATURE_32 ('S','c','k','t')  ///<  ESL_SOCKET memory signature
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| #define PORT_SIGNATURE            SIGNATURE_32 ('P','o','r','t')  ///<  ESL_PORT memory signature
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| 
 | |
| 
 | |
| /**
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|   Socket states
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| **/
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| typedef enum
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| {
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|   SOCKET_STATE_NOT_CONFIGURED = 0,  ///<  socket call was successful
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|   SOCKET_STATE_BOUND,               ///<  bind call was successful
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|   SOCKET_STATE_LISTENING,           ///<  listen call was successful
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|   SOCKET_STATE_NO_PORTS,            ///<  No ports available
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|   SOCKET_STATE_IN_FIFO,             ///<  Socket on FIFO
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|   SOCKET_STATE_CONNECTING,          ///<  Connecting to a remote system
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|   SOCKET_STATE_CONNECTED,           ///<  Accept or connect call was successful
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| 
 | |
|   //
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|   //  Close state must be the last in the list
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|   //
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|   SOCKET_STATE_CLOSED               ///<  Close call was successful
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| } SOCKET_STATE;
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| 
 | |
| 
 | |
| /**
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|   Port states
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| **/
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| typedef enum
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| {
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|   PORT_STATE_ALLOCATED = 0, ///<  Port allocated
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|   PORT_STATE_OPEN,          ///<  Port opened
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|   PORT_STATE_RX_ERROR,      ///<  Receive error detected
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| 
 | |
|   //
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|   //  Close state must be last in the list!
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|   //
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|   //  Using < <= > >= in tests code to detect port close state
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|   //  machine has started
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|   //
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|   PORT_STATE_CLOSE_STARTED, ///<  Close started on port
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|   PORT_STATE_CLOSE_TX_DONE, ///<  Transmits shutdown
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|   PORT_STATE_CLOSE_DONE,    ///<  Port close operation complete
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|   PORT_STATE_CLOSE_RX_DONE  ///<  Receives shutdown
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| } PORT_STATE;
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| 
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| //------------------------------------------------------------------------------
 | |
| //  Data Types
 | |
| //------------------------------------------------------------------------------
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| 
 | |
| typedef struct _ESL_IO_MGMT ESL_IO_MGMT;///<  Forward declaration
 | |
| typedef struct _ESL_PACKET ESL_PACKET;  ///<  Forward declaration
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| typedef struct _ESL_PORT ESL_PORT;      ///<  Forward declaration
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| typedef struct _ESL_SOCKET ESL_SOCKET;  ///<  Forward declaration
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| 
 | |
| /**
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|   Receive context for SOCK_RAW sockets using IPv4.
 | |
| **/
 | |
| typedef struct
 | |
| {
 | |
|   EFI_IP4_RECEIVE_DATA * pRxData;       ///<  Receive operation description
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| } ESL_IP4_RX_DATA;
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| 
 | |
| 
 | |
| /**
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|   Transmit context for SOCK_RAW sockets using IPv4.
 | |
| **/
 | |
| typedef struct
 | |
| {
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|   EFI_IP4_OVERRIDE_DATA Override;       ///<  Override data
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|   EFI_IP4_TRANSMIT_DATA TxData;         ///<  Transmit operation description
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|   UINT8 Buffer[ 1 ];                    ///<  Data buffer
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| } ESL_IP4_TX_DATA;
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| 
 | |
| 
 | |
| /**
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|   Receive context for SOCK_STREAM and SOCK_SEQPACKET sockets using TCPv4.
 | |
| **/
 | |
| typedef struct
 | |
| {
 | |
|   EFI_TCP4_RECEIVE_DATA RxData;         ///<  Receive operation description
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|   UINT8 Buffer[ RX_PACKET_DATA ];       ///<  Data buffer
 | |
| } ESL_TCP4_RX_DATA;
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| 
 | |
| 
 | |
| /**
 | |
|   Transmit context for SOCK_STREAM and SOCK_SEQPACKET sockets using TCPv4.
 | |
| **/
 | |
| typedef struct
 | |
| {
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|   EFI_TCP4_TRANSMIT_DATA TxData;        ///<  Transmit operation description
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|   UINT8 Buffer[ 1 ];                    ///<  Data buffer
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| } ESL_TCP4_TX_DATA;
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| 
 | |
| 
 | |
| /**
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|   Receive context for SOCK_STREAM and SOCK_SEQPACKET sockets using TCPv6.
 | |
| **/
 | |
| typedef struct
 | |
| {
 | |
|   EFI_TCP6_RECEIVE_DATA RxData;         ///<  Receive operation description
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|   UINT8 Buffer[ RX_PACKET_DATA ];       ///<  Data buffer
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| } ESL_TCP6_RX_DATA;
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| 
 | |
| 
 | |
| /**
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|   Transmit context for SOCK_STREAM and SOCK_SEQPACKET sockets using TCPv6.
 | |
| **/
 | |
| typedef struct
 | |
| {
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|   EFI_TCP6_TRANSMIT_DATA TxData;        ///<  Transmit operation description
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|   UINT8 Buffer[ 1 ];                    ///<  Data buffer
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| } ESL_TCP6_TX_DATA;
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| 
 | |
| 
 | |
| /**
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|   Receive context for SOCK_DGRAM sockets using UDPv4.
 | |
| **/
 | |
| typedef struct
 | |
| {
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|   EFI_UDP4_SESSION_DATA Session;        ///<  Remote network address
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|   EFI_UDP4_RECEIVE_DATA * pRxData;      ///<  Receive operation description
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| } ESL_UDP4_RX_DATA;
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| 
 | |
| 
 | |
| /**
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|   Transmit context for SOCK_DGRAM sockets using UDPv4.
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| **/
 | |
| typedef struct
 | |
| {
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|   EFI_UDP4_SESSION_DATA Session;        ///<  Remote network address
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|   EFI_UDP4_TRANSMIT_DATA TxData;        ///<  Transmit operation description
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|   UINTN RetransmitCount;                ///<  Retransmit to handle ARP negotiation
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|   UINT8 Buffer[ 1 ];                    ///<  Data buffer
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| } ESL_UDP4_TX_DATA;
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| 
 | |
| 
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| /**
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|   Receive context for SOCK_DGRAM sockets using UDPv6.
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| **/
 | |
| typedef struct
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| {
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|   EFI_UDP6_SESSION_DATA Session;        ///<  Remote network address
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|   EFI_UDP6_RECEIVE_DATA * pRxData;      ///<  Receive operation description
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| } ESL_UDP6_RX_DATA;
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| 
 | |
| 
 | |
| /**
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|   Transmit context for SOCK_DGRAM sockets using UDPv6.
 | |
| **/
 | |
| typedef struct
 | |
| {
 | |
|   EFI_UDP6_SESSION_DATA Session;        ///<  Remote network address
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|   EFI_UDP6_TRANSMIT_DATA TxData;        ///<  Transmit operation description
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|   UINTN RetransmitCount;                ///<  Retransmit to handle ARP negotiation
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|   UINT8 Buffer[ 1 ];                    ///<  Data buffer
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| } ESL_UDP6_TX_DATA;
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| 
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| 
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| /**
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|   Network specific context for transmit and receive packets.
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| **/
 | |
| typedef struct _ESL_PACKET {
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|   ESL_PACKET * pNext;                   ///<  Next packet in the receive list
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|   size_t PacketSize;                    ///<  Size of this data structure
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|   size_t ValidBytes;                    ///<  Length of valid data in bytes
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|   UINT8 * pBuffer;                      ///<  Current data pointer
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|   union {
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|     ESL_IP4_RX_DATA Ip4Rx;              ///<  Receive operation description
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|     ESL_IP4_TX_DATA Ip4Tx;              ///<  Transmit operation description
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|     ESL_TCP4_RX_DATA Tcp4Rx;            ///<  Receive operation description
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|     ESL_TCP4_TX_DATA Tcp4Tx;            ///<  Transmit operation description
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|     ESL_TCP6_RX_DATA Tcp6Rx;            ///<  Receive operation description
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|     ESL_TCP6_TX_DATA Tcp6Tx;            ///<  Transmit operation description
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|     ESL_UDP4_RX_DATA Udp4Rx;            ///<  Receive operation description
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|     ESL_UDP4_TX_DATA Udp4Tx;            ///<  Transmit operation description
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|     ESL_UDP6_RX_DATA Udp6Rx;            ///<  Receive operation description
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|     ESL_UDP6_TX_DATA Udp6Tx;            ///<  Transmit operation description
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|   } Op;                                 ///<  Network specific context
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| } GCC_ESL_PACKET;
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| 
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| /**
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|   Service control structure
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| 
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|   The driver uses this structure to manage the network devices.
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| **/
 | |
| typedef struct _ESL_SERVICE {
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|   UINTN Signature;          ///<  Structure identification
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| 
 | |
|   //
 | |
|   //  Links
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|   //
 | |
|   ESL_SERVICE * pNext;      ///<  Next service in the service list
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| 
 | |
|   //
 | |
|   //  Service data
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|   //
 | |
|   CONST ESL_SOCKET_BINDING * pSocketBinding;      ///<  Name and shutdown routine
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|   EFI_HANDLE Controller;                          ///<  Controller for the service
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|   EFI_SERVICE_BINDING_PROTOCOL * pServiceBinding; ///<  Network layer service binding interface
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| 
 | |
|   //
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|   //  Network data
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|   //
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|   ESL_PORT * pPortList;     ///<  List of ports using this service
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| }GCC_ESL_SERVICE;
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| 
 | |
| /**
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|   IO management structure
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| 
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|   This structure manages a single operation with the network.
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| **/
 | |
| typedef struct _ESL_IO_MGMT {
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|   ESL_IO_MGMT * pNext;                ///<  Next TX management structure
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|   ESL_PORT * pPort;                   ///<  Port structure address
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|   ESL_PACKET * pPacket;               ///<  Packet structure address
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|   union {
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|     EFI_IP4_COMPLETION_TOKEN Ip4Rx;   ///<  IP4 receive token
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|     EFI_IP4_COMPLETION_TOKEN Ip4Tx;   ///<  IP4 transmit token
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|     EFI_TCP4_IO_TOKEN Tcp4Rx;         ///<  TCP4 receive token
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|     EFI_TCP4_IO_TOKEN Tcp4Tx;         ///<  TCP4 transmit token
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|     EFI_TCP6_IO_TOKEN Tcp6Rx;         ///<  TCP6 receive token
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|     EFI_TCP6_IO_TOKEN Tcp6Tx;         ///<  TCP6 transmit token
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|     EFI_UDP4_COMPLETION_TOKEN Udp4Rx; ///<  UDP4 receive token
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|     EFI_UDP4_COMPLETION_TOKEN Udp4Tx; ///<  UDP4 transmit token
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|     EFI_UDP6_COMPLETION_TOKEN Udp6Rx; ///<  UDP6 receive token
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|     EFI_UDP6_COMPLETION_TOKEN Udp6Tx; ///<  UDP6 transmit token
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|   } Token;                            ///<  Completion token for the network operation
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| } GCC_IO_MGMT;
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| 
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| /**
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|   IP4 context structure
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| 
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|   The driver uses this structure to manage the IP4 connections.
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| **/
 | |
| typedef struct {
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|   //
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|   //  IP4 context
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|   //
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|   EFI_IP4_MODE_DATA ModeData;           ///<  IP4 mode data, includes configuration data
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|   EFI_IPv4_ADDRESS DestinationAddress;  ///<  Default destination address
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| } ESL_IP4_CONTEXT;
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| 
 | |
| 
 | |
| /**
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|   TCP4 context structure
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| 
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|   The driver uses this structure to manage the TCP4 connections.
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| **/
 | |
| typedef struct {
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|   //
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|   //  TCP4 context
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|   //
 | |
|   EFI_TCP4_CONFIG_DATA ConfigData;        ///<  TCP4 configuration data
 | |
|   EFI_TCP4_OPTION Option;                 ///<  TCP4 port options
 | |
| 
 | |
|   //
 | |
|   //  Tokens
 | |
|   //
 | |
|   EFI_TCP4_LISTEN_TOKEN ListenToken;      ///<  Listen control
 | |
|   EFI_TCP4_CONNECTION_TOKEN ConnectToken; ///<  Connection control
 | |
|   EFI_TCP4_CLOSE_TOKEN CloseToken;        ///<  Close control
 | |
| } ESL_TCP4_CONTEXT;
 | |
| 
 | |
| /**
 | |
|   TCP6 context structure
 | |
| 
 | |
|   The driver uses this structure to manage the TCP6 connections.
 | |
| **/
 | |
| typedef struct {
 | |
|   //
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|   //  TCP6 context
 | |
|   //
 | |
|   EFI_TCP6_CONFIG_DATA ConfigData;        ///<  TCP6 configuration data
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|   EFI_TCP6_OPTION Option;                 ///<  TCP6 port options
 | |
| 
 | |
|   //
 | |
|   //  Tokens
 | |
|   //
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|   EFI_TCP6_LISTEN_TOKEN ListenToken;      ///<  Listen control
 | |
|   EFI_TCP6_CONNECTION_TOKEN ConnectToken; ///<  Connection control
 | |
|   EFI_TCP6_CLOSE_TOKEN CloseToken;        ///<  Close control
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| } ESL_TCP6_CONTEXT;
 | |
| 
 | |
| /**
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|   UDP4 context structure
 | |
| 
 | |
|   The driver uses this structure to manage the UDP4 connections.
 | |
| **/
 | |
| typedef struct {
 | |
|   //
 | |
|   //  UDP4 context
 | |
|   //
 | |
|   EFI_UDP4_CONFIG_DATA ConfigData;  ///<  UDP4 configuration data
 | |
| } ESL_UDP4_CONTEXT;
 | |
| 
 | |
| /**
 | |
|   UDP6 context structure
 | |
| 
 | |
|   The driver uses this structure to manage the UDP6 connections.
 | |
| **/
 | |
| typedef struct {
 | |
|   //
 | |
|   //  UDP6 context
 | |
|   //
 | |
|   EFI_UDP6_CONFIG_DATA ConfigData;  ///<  UDP6 configuration data
 | |
| } ESL_UDP6_CONTEXT;
 | |
| 
 | |
| 
 | |
| /**
 | |
|   Configure the network layer.
 | |
| 
 | |
|   @param [in] pProtocol   Protocol structure address
 | |
|   @param [in] pConfigData Address of the confiuration data
 | |
| 
 | |
|   @return   Returns EFI_SUCCESS if the operation is successfully
 | |
|             started.
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (EFIAPI * PFN_NET_CONFIGURE) (
 | |
|   IN VOID * pProtocol,
 | |
|   IN VOID * pConfigData
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Hand an I/O operation to the network layer.
 | |
| 
 | |
|   @param [in] pProtocol   Protocol structure address
 | |
|   @param [in] pToken      Completion token address
 | |
| 
 | |
|   @return   Returns EFI_SUCCESS if the operation is successfully
 | |
|             started.
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (EFIAPI * PFN_NET_IO_START) (
 | |
|   IN VOID * pProtocol,
 | |
|   IN VOID * pToken
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Poll the LAN adapter for receive packets.
 | |
| 
 | |
|   @param [in] pProtocol   Protocol structure address
 | |
|   @param [in] pToken      Completion token address
 | |
| 
 | |
|   @return   Returns EFI_SUCCESS if the operation is successfully
 | |
|             started.
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (EFIAPI * PFN_NET_POLL) (
 | |
|   IN VOID * pProtocol
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Port control structure
 | |
| 
 | |
|   The driver uses this structure to manager the socket's connection
 | |
|   with the network driver.
 | |
| **/
 | |
| typedef struct _ESL_PORT {
 | |
|   UINTN Signature;              ///<  Structure identification
 | |
| 
 | |
|   //
 | |
|   //  List links
 | |
|   //
 | |
|   ESL_PORT * pLinkService;      ///<  Link in service port list
 | |
|   ESL_PORT * pLinkSocket;       ///<  Link in socket port list
 | |
| 
 | |
|   //
 | |
|   //  Structures
 | |
|   //
 | |
|   ESL_SERVICE * pService;       ///<  Service for this port
 | |
|   ESL_SOCKET * pSocket;         ///<  Socket for this port
 | |
| 
 | |
|   //
 | |
|   //  Eliminate the pService references during port close
 | |
|   //
 | |
|   EFI_SERVICE_BINDING_PROTOCOL * pServiceBinding; ///<  Service binding for network layer
 | |
|   CONST ESL_SOCKET_BINDING * pSocketBinding;      ///<  Socket binding for network layer
 | |
| 
 | |
|   //
 | |
|   //  Port management
 | |
|   //
 | |
|   EFI_HANDLE Handle;              ///<  Network port handle
 | |
|   PORT_STATE State;               ///<  State of the port
 | |
|   UINTN DebugFlags;               ///<  Debug flags used to close the port
 | |
|   BOOLEAN bCloseNow;              ///<  TRUE = Close the port immediately
 | |
|   BOOLEAN bConfigured;            ///<  TRUE = Configure call made to network layer
 | |
|   PFN_NET_CONFIGURE pfnConfigure; ///<  Configure the network layer
 | |
| 
 | |
|   //
 | |
|   //  Transmit data management
 | |
|   //
 | |
|   BOOLEAN bTxFlowControl;       ///<  TX flow control applied
 | |
|   PFN_NET_IO_START pfnTxStart;  ///<  Start a transmit on the network
 | |
|   ESL_IO_MGMT * pTxActive;      ///<  Normal data queue
 | |
|   ESL_IO_MGMT * pTxFree;        ///<  Normal free queue
 | |
| 
 | |
|   ESL_IO_MGMT * pTxOobActive;   ///<  Urgent data queue
 | |
|   ESL_IO_MGMT * pTxOobFree;     ///<  Urgent free queue
 | |
| 
 | |
|   //
 | |
|   //  Receive data management
 | |
|   //
 | |
|   PFN_NET_IO_START pfnRxCancel; ///<  Cancel a receive on the network
 | |
|   PFN_NET_POLL pfnRxPoll;       ///<  Poll the LAN adapter for receive packets
 | |
|   PFN_NET_IO_START pfnRxStart;  ///<  Start a receive on the network
 | |
|   ESL_IO_MGMT * pRxActive;      ///<  Active receive operation queue
 | |
|   ESL_IO_MGMT * pRxFree;        ///<  Free structure queue
 | |
| 
 | |
|   //
 | |
|   //  Protocol specific management data
 | |
|   //
 | |
|   union {
 | |
|     VOID * v;                   ///<  VOID pointer
 | |
|     EFI_IP4_PROTOCOL * IPv4;    ///<  IP4 protocol pointer
 | |
|     EFI_TCP4_PROTOCOL * TCPv4;  ///<  TCP4 protocol pointer
 | |
|     EFI_TCP6_PROTOCOL * TCPv6;  ///<  TCP6 protocol pointer
 | |
|     EFI_UDP4_PROTOCOL * UDPv4;  ///<  UDP4 protocol pointer
 | |
|     EFI_UDP6_PROTOCOL * UDPv6;  ///<  UDP6 protocol pointer
 | |
|   } pProtocol;                  ///<  Protocol structure address
 | |
|   union {
 | |
|     ESL_IP4_CONTEXT Ip4;        ///<  IPv4 management data
 | |
|     ESL_TCP4_CONTEXT Tcp4;      ///<  TCPv4 management data
 | |
|     ESL_TCP6_CONTEXT Tcp6;      ///<  TCPv6 management data
 | |
|     ESL_UDP4_CONTEXT Udp4;      ///<  UDPv4 management data
 | |
|     ESL_UDP6_CONTEXT Udp6;      ///<  UDPv6 management data
 | |
|   } Context;                    ///<  Network specific context
 | |
| }GCC_ESL_PORT;
 | |
| 
 | |
| /**
 | |
|   Accept a network connection.
 | |
| 
 | |
|   @param [in] pSocket   Address of the socket structure.
 | |
| 
 | |
|   @param [in] pSockAddr       Address of a buffer to receive the remote
 | |
|                               network address.
 | |
| 
 | |
|   @param [in, out] pSockAddrLength  Length in bytes of the address buffer.
 | |
|                                     On output specifies the length of the
 | |
|                                     remote network address.
 | |
| 
 | |
|   @retval EFI_SUCCESS   Remote address is available
 | |
|   @retval Others        Remote address not available
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_ACCEPT) (
 | |
|   IN ESL_SOCKET * pSocket,
 | |
|   IN struct sockaddr * pSockAddr,
 | |
|   IN OUT socklen_t * pSockAddrLength
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Poll for completion of the connection attempt.
 | |
| 
 | |
|   @param [in] pSocket   Address of an ::ESL_SOCKET structure.
 | |
| 
 | |
|   @retval EFI_SUCCESS   The connection was successfully established.
 | |
|   @retval EFI_NOT_READY The connection is in progress, call this routine again.
 | |
|   @retval Others        The connection attempt failed.
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_CONNECT_POLL) (
 | |
|   IN ESL_SOCKET * pSocket
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Attempt to connect to a remote TCP port
 | |
| 
 | |
|   This routine starts the connection processing for a SOCK_STREAM
 | |
|   or SOCK_SEQPAKCET socket using the TCP network layer.
 | |
| 
 | |
|   This routine is called by ::EslSocketConnect to initiate the TCP
 | |
|   network specific connect operations.
 | |
| 
 | |
|   @param [in] pSocket   Address of an ::ESL_SOCKET structure.
 | |
| 
 | |
|   @retval EFI_SUCCESS   The connection was successfully established.
 | |
|   @retval EFI_NOT_READY The connection is in progress, call this routine again.
 | |
|   @retval Others        The connection attempt failed.
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_CONNECT_START) (
 | |
|   IN ESL_SOCKET * pSocket
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Get the local socket address
 | |
| 
 | |
|   @param [in] pPort       Address of an ::ESL_PORT structure.
 | |
| 
 | |
|   @param [out] pAddress   Network address to receive the local system address
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| VOID
 | |
| (* PFN_API_LOCAL_ADDR_GET) (
 | |
|   IN ESL_PORT * pPort,
 | |
|   OUT struct sockaddr * pAddress
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Set the local port address.
 | |
| 
 | |
|   This routine sets the local port address.
 | |
| 
 | |
|   This support routine is called by ::EslSocketPortAllocate.
 | |
| 
 | |
|   @param [in] ppPort      Address of an ESL_PORT structure
 | |
|   @param [in] pSockAddr   Address of a sockaddr structure that contains the
 | |
|                           connection point on the local machine.  An IPv4 address
 | |
|                           of INADDR_ANY specifies that the connection is made to
 | |
|                           all of the network stacks on the platform.  Specifying a
 | |
|                           specific IPv4 address restricts the connection to the
 | |
|                           network stack supporting that address.  Specifying zero
 | |
|                           for the port causes the network layer to assign a port
 | |
|                           number from the dynamic range.  Specifying a specific
 | |
|                           port number causes the network layer to use that port.
 | |
|   @param [in] bBindTest   TRUE = run bind testing
 | |
| 
 | |
|   @retval EFI_SUCCESS     The operation was successful
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_LOCAL_ADDR_SET) (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN CONST struct sockaddr * pSockAddr,
 | |
|   IN BOOLEAN bBindTest
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Process the completion event
 | |
| 
 | |
|   This routine handles the I/O completion event.
 | |
| 
 | |
|   This routine is called by the low level network driver when
 | |
|   the operation is completed.
 | |
| 
 | |
|   @param [in] Event     The receive completion event
 | |
| 
 | |
|   @param [in] pIo       The address of an ::ESL_IO_MGMT structure
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| VOID
 | |
| (* PFN_API_IO_COMPLETE) (
 | |
|   IN EFI_EVENT Event,
 | |
|   IN ESL_IO_MGMT * pIo
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Determine if the socket is configured.
 | |
| 
 | |
| 
 | |
|   @param [in] pSocket         Address of a ESL_SOCKET structure
 | |
|   
 | |
|   @retval EFI_SUCCESS - The port is connected
 | |
|   @retval EFI_NOT_STARTED - The port is not connected
 | |
| 
 | |
|  **/
 | |
|  typedef
 | |
|  EFI_STATUS
 | |
|  (* PFN_API_IS_CONFIGURED) (
 | |
|   IN ESL_SOCKET * pSocket
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Establish the known port to listen for network connections.
 | |
| 
 | |
|   @param [in] pSocket     Address of the socket structure.
 | |
| 
 | |
|   @retval EFI_SUCCESS - Socket successfully created
 | |
|   @retval Other - Failed to enable the socket for listen
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_LISTEN) (
 | |
|   IN ESL_SOCKET * pSocket
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Get the option value
 | |
| 
 | |
|   Retrieve the protocol options one at a time by name.
 | |
| 
 | |
|   @param [in] pSocket           Address of a ESL_SOCKET structure
 | |
|   @param [in] OptionName        Name of the option
 | |
|   @param [out] ppOptionData     Buffer to receive address of option value
 | |
|   @param [out] pOptionLength    Buffer to receive the option length
 | |
| 
 | |
|   @retval EFI_SUCCESS - Socket data successfully received
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_OPTION_GET) (
 | |
|   IN ESL_SOCKET * pSocket,
 | |
|   IN int OptionName,
 | |
|   OUT CONST void ** __restrict ppOptionData,
 | |
|   OUT socklen_t * __restrict pOptionLength
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Set the option value
 | |
| 
 | |
|   Adjust the protocol options one at a time by name.
 | |
| 
 | |
|   @param [in] pSocket         Address of a ESL_SOCKET structure
 | |
|   @param [in] OptionName      Name of the option
 | |
|   @param [in] pOptionValue    Buffer containing the option value
 | |
|   @param [in] OptionLength    Length of the buffer in bytes
 | |
| 
 | |
|   @retval EFI_SUCCESS - Option successfully set
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_OPTION_SET) (
 | |
|   IN ESL_SOCKET * pSocket,
 | |
|   IN int OptionName,
 | |
|   IN CONST void * pOptionValue,
 | |
|   IN socklen_t OptionLength
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Free a receive packet
 | |
| 
 | |
|   This routine performs the network specific operations necessary
 | |
|   to free a receive packet.
 | |
| 
 | |
|   This routine is called by ::EslSocketPortCloseTxDone to free a
 | |
|   receive packet.
 | |
| 
 | |
|   @param [in] pPacket         Address of an ::ESL_PACKET structure.
 | |
|   @param [in, out] pRxBytes   Address of the count of RX bytes
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| VOID
 | |
| (* PFN_API_PACKET_FREE) (
 | |
|   IN ESL_PACKET * pPacket,
 | |
|   IN OUT size_t * pRxBytes
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Initialize the network specific portions of an ::ESL_PORT structure.
 | |
| 
 | |
|   This routine initializes the network specific portions of an
 | |
|   ::ESL_PORT structure for use by the socket.
 | |
| 
 | |
|   This support routine is called by ::EslSocketPortAllocate
 | |
|   to connect the socket with the underlying network adapter
 | |
|   running the IPv4 protocol.
 | |
| 
 | |
|   @param [in] ppPort      Address of an ESL_PORT structure
 | |
|   @param [in] DebugFlags  Flags for debug messages
 | |
| 
 | |
|   @retval EFI_SUCCESS - Socket successfully created
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_PORT_ALLOC) (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN UINTN DebugFlags
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Close a network specific port.
 | |
| 
 | |
|   This routine releases the resources allocated by the
 | |
|   network specific PortAllocate routine.
 | |
| 
 | |
|   This routine is called by ::EslSocketPortCloseRxDone as
 | |
|   the last step of closing processing.
 | |
|   See the \ref PortCloseStateMachine section.
 | |
|   
 | |
|   @param [in] pPort       Address of an ::ESL_PORT structure.
 | |
| 
 | |
|   @retval EFI_SUCCESS     The port is closed
 | |
|   @retval other           Port close error
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_PORT_CLOSE) (
 | |
|   IN ESL_PORT * pPort
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Perform the network specific close operation on the port.
 | |
| 
 | |
|   This routine performs the network specific operation to
 | |
|   shutdown receive operations on the port.
 | |
| 
 | |
|   This routine is called by the ::EslSocketPortCloseTxDone
 | |
|   routine after the port completes all of the transmission.
 | |
| 
 | |
|   @param [in] pPort           Address of an ::ESL_PORT structure.
 | |
| 
 | |
|   @retval EFI_SUCCESS         The port is closed, not normally returned
 | |
|   @retval EFI_NOT_READY       The port is still closing
 | |
|   @retval EFI_ALREADY_STARTED Error, the port is in the wrong state,
 | |
|                               most likely the routine was called already.
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_PORT_CLOSE_OP) (
 | |
|   IN ESL_PORT * pPort
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Receive data from a network connection.
 | |
| 
 | |
|   This routine attempts to return buffered data to the caller.  The
 | |
|   data is removed from the urgent queue if the message flag MSG_OOB
 | |
|   is specified, otherwise data is removed from the normal queue.
 | |
|   See the \ref ReceiveEngine section.
 | |
| 
 | |
|   This routine is called by ::EslSocketReceive to handle the network
 | |
|   specific receive operation.
 | |
| 
 | |
|   @param [in] pPort           Address of an ::ESL_PORT structure.
 | |
| 
 | |
|   @param [in] pPacket         Address of an ::ESL_PACKET structure.
 | |
|   
 | |
|   @param [in] pbConsumePacket Address of a BOOLEAN indicating if the packet is to be consumed
 | |
|   
 | |
|   @param [in] BufferLength    Length of the the buffer
 | |
|   
 | |
|   @param [in] pBuffer         Address of a buffer to receive the data.
 | |
|   
 | |
|   @param [in] pDataLength     Number of received data bytes in the buffer.
 | |
| 
 | |
|   @param [out] pAddress       Network address to receive the remote system address
 | |
| 
 | |
|   @param [out] pSkipBytes     Address to receive the number of bytes skipped
 | |
| 
 | |
|   @return   Returns the address of the next free byte in the buffer.
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| UINT8 *
 | |
| (* PFN_API_RECEIVE) (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN ESL_PACKET * pPacket,
 | |
|   IN BOOLEAN * pbConsumePacket,
 | |
|   IN size_t BufferLength,
 | |
|   IN UINT8 * pBuffer,
 | |
|   OUT size_t * pDataLength,
 | |
|   OUT struct sockaddr * pAddress,
 | |
|   OUT size_t * pSkipBytes
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Get the remote socket address
 | |
| 
 | |
|   @param [in] pPort       Address of an ::ESL_PORT structure.
 | |
| 
 | |
|   @param [out] pAddress   Network address to receive the remote system address
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| VOID
 | |
| (* PFN_API_REMOTE_ADDR_GET) (
 | |
|   IN ESL_PORT * pPort,
 | |
|   OUT struct sockaddr * pAddress
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Set the remote address
 | |
| 
 | |
|   This routine sets the remote address in the port.
 | |
| 
 | |
|   This routine is called by ::EslSocketConnect to specify the
 | |
|   remote network address.
 | |
| 
 | |
|   @param [in] pPort           Address of an ::ESL_PORT structure.
 | |
| 
 | |
|   @param [in] pSockAddr       Network address of the remote system.
 | |
| 
 | |
|   @param [in] SockAddrLength  Length in bytes of the network address.
 | |
| 
 | |
|   @retval EFI_SUCCESS     The operation was successful
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_REMOTE_ADDR_SET) (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN CONST struct sockaddr * pSockAddr,
 | |
|   IN socklen_t SockAddrLength
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Start a receive operation
 | |
| 
 | |
|   This routine prepares a packet for the receive operation.
 | |
|   See the \ref ReceiveEngine section.
 | |
| 
 | |
|   This support routine is called by EslSocketRxStart.
 | |
| 
 | |
|   @param [in] pPort       Address of an ::ESL_PORT structure.
 | |
|   @param [in] pIo         Address of an ::ESL_IO_MGMT structure.
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| VOID
 | |
| (* PFN_API_RX_START) (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN ESL_IO_MGMT * pIo
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Buffer data for transmission over a network connection.
 | |
| 
 | |
|   @param [in] pSocket         Address of a ESL_SOCKET structure
 | |
| 
 | |
|   @param [in] Flags           Message control flags
 | |
| 
 | |
|   @param [in] BufferLength    Length of the the buffer
 | |
| 
 | |
|   @param [in] pBuffer         Address of a buffer to receive the data.
 | |
| 
 | |
|   @param [in] pDataLength     Number of received data bytes in the buffer.
 | |
| 
 | |
|   @param [in] pAddress        Network address of the remote system address
 | |
| 
 | |
|   @param [in] AddressLength   Length of the remote network address structure
 | |
| 
 | |
|   @retval EFI_SUCCESS - Socket data successfully buffered
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_TRANSMIT) (
 | |
|   IN ESL_SOCKET * pSocket,
 | |
|   IN int Flags,
 | |
|   IN size_t BufferLength,
 | |
|   IN CONST UINT8 * pBuffer,
 | |
|   OUT size_t * pDataLength,
 | |
|   IN const struct sockaddr * pAddress,
 | |
|   IN socklen_t AddressLength
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Process the transmit completion
 | |
| 
 | |
|   This routine calls ::EslSocketTxComplete to handle the
 | |
|   transmit completion.
 | |
| 
 | |
|   This routine is called by the network layers upon the completion
 | |
|   of a transmit operation.
 | |
| 
 | |
|   @param [in] Event     The urgent transmit completion event
 | |
| 
 | |
|   @param [in] pIo       The ESL_IO_MGMT structure address
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| VOID
 | |
| (* PFN_API_TX_COMPLETE) (
 | |
|   IN EFI_EVENT Event,
 | |
|   IN ESL_IO_MGMT * pIo
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Verify the adapter's IP address
 | |
| 
 | |
|   This support routine is called by EslSocketBindTest.
 | |
| 
 | |
|   @param [in] pPort       Address of an ::ESL_PORT structure.
 | |
|   @param [in] pConfigData Address of the configuration data
 | |
| 
 | |
|   @retval EFI_SUCCESS - The IP address is valid
 | |
|   @retval EFI_NOT_STARTED - The IP address is invalid
 | |
| 
 | |
|  **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (* PFN_API_VERIFY_LOCAL_IP_ADDRESS) (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN VOID * pConfigData
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Socket type control structure
 | |
| 
 | |
|   This driver uses this structure to define the API for the socket type.
 | |
| **/
 | |
| typedef struct {
 | |
|   CONST CHAR8 * pName;                      ///<  Protocol name
 | |
|   int DefaultProtocol;                      ///<  Default protocol
 | |
|   UINTN ConfigDataOffset;                   ///<  Offset in ::ESL_PORT to the configuration data
 | |
|   UINTN ServiceListOffset;                  ///<  Offset in ::ESL_LAYER for the list of services
 | |
|   socklen_t MinimumAddressLength;           ///<  Minimum address length in bytes
 | |
|   socklen_t AddressLength;                  ///<  Address length in bytes
 | |
|   sa_family_t AddressFamily;                ///<  Address family
 | |
|   UINTN RxPacketBytes;                      ///<  Length of the RX packet allocation
 | |
|   UINTN RxZeroBytes;                        ///<  Number of bytes to zero in RX packet
 | |
|   UINTN RxBufferOffset;                     ///<  Offset of buffer address in ESL_IO_MGMT structure
 | |
|   BOOLEAN bOobSupported;                    ///<  TRUE if out-of-band messages are supported
 | |
|   int BindTestErrno;                        ///<  errno value if EslSocketBindTest fails
 | |
|   PFN_API_ACCEPT pfnAccept;                 ///<  Accept a network connection
 | |
|   PFN_API_CONNECT_POLL pfnConnectPoll;      ///<  Poll for connection complete
 | |
|   PFN_API_CONNECT_START pfnConnectStart;    ///<  Start the connection to a remote system
 | |
|   PFN_API_IS_CONFIGURED pfnIsConfigured;    ///<  Determine if the socket is configured
 | |
|   PFN_API_LOCAL_ADDR_GET pfnLocalAddrGet;   ///<  Get the local address
 | |
|   PFN_API_LOCAL_ADDR_SET pfnLocalAddrSet;   ///<  Set the local address
 | |
|   PFN_API_LISTEN pfnListen;                 ///<  Listen for connections on known server port
 | |
|   PFN_API_OPTION_GET pfnOptionGet;          ///<  Get the option value
 | |
|   PFN_API_OPTION_SET pfnOptionSet;          ///<  Set the option value
 | |
|   PFN_API_PACKET_FREE pfnPacketFree;        ///<  Free the receive packet
 | |
|   PFN_API_PORT_ALLOC pfnPortAllocate;       ///<  Allocate the network specific resources for the port
 | |
|   PFN_API_PORT_CLOSE pfnPortClose;          ///<  Close the network specific resources for the port
 | |
|   PFN_API_PORT_CLOSE_OP pfnPortCloseOp;     ///<  Perform the close operation on the port
 | |
|   BOOLEAN bPortCloseComplete;               ///<  TRUE = Close is complete after close operation
 | |
|   PFN_API_RECEIVE pfnReceive;               ///<  Attempt to receive some data
 | |
|   PFN_API_REMOTE_ADDR_GET pfnRemoteAddrGet; ///<  Get remote address
 | |
|   PFN_API_REMOTE_ADDR_SET pfnRemoteAddrSet; ///<  Set the remote system address
 | |
|   PFN_API_IO_COMPLETE pfnRxComplete;        ///<  RX completion
 | |
|   PFN_API_RX_START pfnRxStart;              ///<  Start a network specific receive operation
 | |
|   PFN_API_TRANSMIT pfnTransmit;             ///<  Attempt to buffer a packet for transmit
 | |
|   PFN_API_TX_COMPLETE pfnTxComplete;        ///<  TX completion for normal data
 | |
|   PFN_API_TX_COMPLETE pfnTxOobComplete;     ///<  TX completion for urgent data
 | |
|   PFN_API_VERIFY_LOCAL_IP_ADDRESS pfnVerifyLocalIpAddress;  ///< Verify the local IP address
 | |
| } ESL_PROTOCOL_API;
 | |
| 
 | |
| 
 | |
| /**
 | |
|   Socket control structure
 | |
| 
 | |
|   The driver uses this structure to manage the socket.
 | |
| **/
 | |
| typedef struct _ESL_SOCKET {
 | |
|   UINTN Signature;          ///<  Structure identification
 | |
| 
 | |
|   //
 | |
|   //  Protocol binding
 | |
|   //
 | |
|   EFI_SOCKET_PROTOCOL SocketProtocol; ///<  Socket protocol declaration
 | |
|   CONST ESL_PROTOCOL_API * pApi;      ///<  API for the protocol
 | |
| 
 | |
|   //
 | |
|   //  Socket management
 | |
|   //
 | |
|   ESL_SOCKET * pNext;           ///<  Next socket in the list of sockets
 | |
|   int errno;                    ///<  Error information for this socket
 | |
|   EFI_STATUS Status;            ///<  Asyncronous error information for this socket
 | |
|   SOCKET_STATE State;           ///<  Socket state
 | |
|   UINT32 DebugFlags;            ///<  Debug flags
 | |
| 
 | |
|   //
 | |
|   //  Socket options
 | |
|   //
 | |
|   BOOLEAN bIncludeHeader;       ///<  TRUE if including the IP header
 | |
|   BOOLEAN bListenCalled;        ///<  TRUE if listen was successfully called
 | |
|   BOOLEAN bOobInLine;           ///<  TRUE if out-of-band messages are to be received inline with normal data
 | |
|   BOOLEAN bReUseAddr;           ///<  TRUE if using same address is allowed
 | |
| 
 | |
|   //
 | |
|   //  Socket data
 | |
|   //
 | |
|   int Domain;                   ///<  Specifies family of protocols
 | |
|   int Type;                     ///<  Specifies how to make network connection
 | |
|   int Protocol;                 ///<  Specifies lower layer protocol to use
 | |
|   BOOLEAN bAddressSet;          ///<  Set when the address is specified
 | |
|   BOOLEAN bConfigured;          ///<  Set after the socket is configured
 | |
| 
 | |
|   BOOLEAN bRxDisable;           ///<  Receive disabled via shutdown
 | |
|   size_t RxBytes;               ///<  Total Rx bytes
 | |
|   size_t RxOobBytes;            ///<  Urgent Rx bytes
 | |
|   EFI_STATUS RxError;           ///<  Error during receive
 | |
| 
 | |
|   BOOLEAN bTxDisable;           ///<  Transmit disabled via shutdown
 | |
|   size_t TxBytes;               ///<  Normal Tx bytes
 | |
|   size_t TxOobBytes;            ///<  Urgent Tx bytes
 | |
|   EFI_STATUS TxError;           ///<  Error during transmit
 | |
| 
 | |
|   //
 | |
|   //  Pending connection data
 | |
|   //
 | |
|   BOOLEAN bConnected;           ///<  Set when connected, cleared by poll
 | |
|   EFI_STATUS ConnectStatus;     ///<  Connection status
 | |
|   UINTN MaxFifoDepth;           ///<  Maximum FIFO depth
 | |
|   UINTN FifoDepth;              ///<  Number of sockets in the FIFO
 | |
|   ESL_SOCKET * pFifoHead;       ///<  Head of the FIFO
 | |
|   ESL_SOCKET * pFifoTail;       ///<  Tail of the FIFO
 | |
|   ESL_SOCKET * pNextConnection; ///<  Link in the FIFO
 | |
| 
 | |
|   //
 | |
|   //  Network use
 | |
|   //
 | |
|   ESL_PORT * pPortList;         ///<  List of ports managed by this socket
 | |
|   EFI_EVENT WaitAccept;         ///<  Wait for accept completion
 | |
| 
 | |
|   //
 | |
|   //  Receive data management
 | |
|   //
 | |
|   UINT32 MaxRxBuf;                  ///<  Maximum size of the receive buffer
 | |
|   struct timeval RxTimeout;         ///<  Receive timeout
 | |
|   ESL_PACKET * pRxFree;             ///<  Free packet list
 | |
|   ESL_PACKET * pRxOobPacketListHead;///<  Urgent data list head
 | |
|   ESL_PACKET * pRxOobPacketListTail;///<  Urgent data list tail
 | |
|   ESL_PACKET * pRxPacketListHead;   ///<  Normal data list head
 | |
|   ESL_PACKET * pRxPacketListTail;   ///<  Normal data list tail
 | |
| 
 | |
|   //
 | |
|   //  Transmit data management
 | |
|   //
 | |
|   UINTN TxPacketOffset;             ///<  Offset for data pointer in ::ESL_PACKET
 | |
|   UINTN TxTokenEventOffset;         ///<  Offset to the Event in the TX token
 | |
|   UINTN TxTokenOffset;              ///<  Offset for data pointer in TX token
 | |
|   UINT32 MaxTxBuf;                  ///<  Maximum size of the transmit buffer
 | |
|   ESL_PACKET * pTxOobPacketListHead;///<  Urgent data list head
 | |
|   ESL_PACKET * pTxOobPacketListTail;///<  Urgent data list tail
 | |
|   ESL_PACKET * pTxPacketListHead;   ///<  Normal data list head
 | |
|   ESL_PACKET * pTxPacketListTail;   ///<  Normal data list tail
 | |
| }GCC_ESL_SOCKET;
 | |
| 
 | |
| #define SOCKET_FROM_PROTOCOL(a)  CR (a, ESL_SOCKET, SocketProtocol, SOCKET_SIGNATURE)  ///< Locate ESL_SOCKET from protocol
 | |
| 
 | |
| /**
 | |
|   Socket layer control structure
 | |
| 
 | |
|   The driver uses this structure to manage the driver.
 | |
| **/
 | |
| typedef struct {
 | |
|   UINTN Signature;              ///<  Structure identification
 | |
| 
 | |
|   //
 | |
|   //  Service binding interface
 | |
|   //
 | |
|   CONST EFI_SERVICE_BINDING_PROTOCOL * pServiceBinding; ///<  Driver's binding
 | |
| 
 | |
|   //
 | |
|   //  Image data
 | |
|   //
 | |
|   EFI_HANDLE ImageHandle;       ///<  Image handle
 | |
| 
 | |
|   //
 | |
|   //  Network services
 | |
|   //
 | |
|   ESL_SERVICE * pIp4List;       ///<  List of Ip4 services
 | |
|   ESL_SERVICE * pTcp4List;      ///<  List of Tcp4 services
 | |
|   ESL_SERVICE * pTcp6List;      ///<  List of Tcp6 services
 | |
|   ESL_SERVICE * pUdp4List;      ///<  List of Udp4 services
 | |
|   ESL_SERVICE * pUdp6List;      ///<  List of Udp6 services
 | |
| 
 | |
|   //
 | |
|   //  Socket management
 | |
|   //
 | |
|   ESL_SOCKET * pSocketList;     ///<  List of sockets
 | |
| } ESL_LAYER;
 | |
| 
 | |
| #define LAYER_FROM_SERVICE(a) CR (a, ESL_LAYER, ServiceBinding, LAYER_SIGNATURE) ///< Locate ESL_LAYER from service binding
 | |
| 
 | |
| //------------------------------------------------------------------------------
 | |
| // Data
 | |
| //------------------------------------------------------------------------------
 | |
| 
 | |
| extern ESL_LAYER mEslLayer;
 | |
| 
 | |
| extern CONST ESL_PROTOCOL_API cEslIp4Api;
 | |
| extern CONST ESL_PROTOCOL_API cEslIp6Api;
 | |
| extern CONST ESL_PROTOCOL_API cEslTcp4Api;
 | |
| extern CONST ESL_PROTOCOL_API cEslTcp6Api;
 | |
| extern CONST ESL_PROTOCOL_API cEslUdp4Api;
 | |
| extern CONST ESL_PROTOCOL_API cEslUdp6Api;
 | |
| 
 | |
| extern CONST EFI_SERVICE_BINDING_PROTOCOL mEfiServiceBinding;
 | |
| 
 | |
| //------------------------------------------------------------------------------
 | |
| // Socket Support Routines
 | |
| //------------------------------------------------------------------------------
 | |
| 
 | |
| /**
 | |
|   Allocate and initialize a ESL_SOCKET structure.
 | |
|   
 | |
|   This support function allocates an ::ESL_SOCKET structure
 | |
|   and installs a protocol on ChildHandle.  If pChildHandle is a
 | |
|   pointer to NULL, then a new handle is created and returned in
 | |
|   pChildHandle.  If pChildHandle is not a pointer to NULL, then
 | |
|   the protocol installs on the existing pChildHandle.
 | |
| 
 | |
|   @param [in, out] pChildHandle Pointer to the handle of the child to create.
 | |
|                                 If it is NULL, then a new handle is created.
 | |
|                                 If it is a pointer to an existing UEFI handle, 
 | |
|                                 then the protocol is added to the existing UEFI
 | |
|                                 handle.
 | |
|   @param [in] DebugFlags        Flags for debug messages
 | |
|   @param [in, out] ppSocket     The buffer to receive an ::ESL_SOCKET structure address.
 | |
| 
 | |
|   @retval EFI_SUCCESS           The protocol was added to ChildHandle.
 | |
|   @retval EFI_INVALID_PARAMETER ChildHandle is NULL.
 | |
|   @retval EFI_OUT_OF_RESOURCES  There are not enough resources available to create
 | |
|                                 the child
 | |
|   @retval other                 The child handle was not created
 | |
|   
 | |
| **/
 | |
| EFI_STATUS
 | |
| EFIAPI
 | |
| EslSocketAllocate (
 | |
|   IN OUT EFI_HANDLE * pChildHandle,
 | |
|   IN     UINTN DebugFlags,
 | |
|   IN OUT ESL_SOCKET ** ppSocket
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Test the bind configuration.
 | |
| 
 | |
|   @param [in] pPort       Address of the ::ESL_PORT structure.
 | |
|   @param [in] ErrnoValue  errno value if test fails
 | |
| 
 | |
|   @retval EFI_SUCCESS   The connection was successfully established.
 | |
|   @retval Others        The connection attempt failed.
 | |
| 
 | |
|  **/
 | |
| EFI_STATUS
 | |
| EslSocketBindTest (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN int ErrnoValue
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Copy a fragmented buffer into a destination buffer.
 | |
| 
 | |
|   This support routine copies a fragmented buffer to the caller specified buffer.
 | |
| 
 | |
|   This routine is called by ::EslIp4Receive and ::EslUdp4Receive.
 | |
| 
 | |
|   @param [in] FragmentCount   Number of fragments in the table
 | |
| 
 | |
|   @param [in] pFragmentTable  Address of an EFI_IP4_FRAGMENT_DATA structure
 | |
| 
 | |
|   @param [in] BufferLength    Length of the the buffer
 | |
| 
 | |
|   @param [in] pBuffer         Address of a buffer to receive the data.
 | |
| 
 | |
|   @param [in] pDataLength     Number of received data bytes in the buffer.
 | |
| 
 | |
|   @return   Returns the address of the next free byte in the buffer.
 | |
| 
 | |
| **/
 | |
| UINT8 *
 | |
| EslSocketCopyFragmentedBuffer (
 | |
|   IN UINT32 FragmentCount,
 | |
|   IN EFI_IP4_FRAGMENT_DATA * pFragmentTable,
 | |
|   IN size_t BufferLength,
 | |
|   IN UINT8 * pBuffer,
 | |
|   OUT size_t * pDataLength
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Free the socket.
 | |
| 
 | |
|   This routine frees the socket structure and handle resources.
 | |
| 
 | |
|   The ::close routine calls EslServiceFreeProtocol which then calls
 | |
|   this routine to free the socket context structure and close the
 | |
|   handle.
 | |
| 
 | |
|   @param [in] pSocketProtocol Address of an ::EFI_SOCKET_PROTOCOL structure.
 | |
|   
 | |
|   @param [out] pErrno         Address to receive the errno value upon completion.
 | |
| 
 | |
|   @retval EFI_SUCCESS   The socket resources were returned successfully.
 | |
| 
 | |
|  **/
 | |
| EFI_STATUS
 | |
| EslSocketFree (
 | |
|   IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
 | |
|   IN int * pErrno
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Free the ESL_IO_MGMT event and structure
 | |
| 
 | |
|   This support routine walks the free list to close the event in
 | |
|   the ESL_IO_MGMT structure and remove the structure from the free
 | |
|   list.
 | |
| 
 | |
|   See the \ref TransmitEngine section.
 | |
| 
 | |
|   @param [in] pPort         Address of an ::ESL_PORT structure
 | |
|   @param [in] ppFreeQueue   Address of the free queue head
 | |
|   @param [in] DebugFlags    Flags for debug messages
 | |
|   @param [in] pEventName    Zero terminated string containing the event name
 | |
| 
 | |
|   @retval EFI_SUCCESS - The structures were properly initialized
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EslSocketIoFree (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN ESL_IO_MGMT ** ppFreeQueue,
 | |
|   IN UINTN DebugFlags,
 | |
|   IN CHAR8 * pEventName
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Initialize the ESL_IO_MGMT structures
 | |
| 
 | |
|   This support routine initializes the ESL_IO_MGMT structure and
 | |
|   places them on to a free list.
 | |
| 
 | |
|   This routine is called by the PortAllocate routines to prepare
 | |
|   the transmit engines.  See the \ref TransmitEngine section.
 | |
| 
 | |
|   @param [in] pPort         Address of an ::ESL_PORT structure
 | |
|   @param [in, out] ppIo     Address containing the first structure address.  Upon
 | |
|                             return this buffer contains the next structure address.
 | |
|   @param [in] TokenCount    Number of structures to initialize
 | |
|   @param [in] ppFreeQueue   Address of the free queue head
 | |
|   @param [in] DebugFlags    Flags for debug messages
 | |
|   @param [in] pEventName    Zero terminated string containing the event name
 | |
|   @param [in] pfnCompletion Completion routine address
 | |
| 
 | |
|   @retval EFI_SUCCESS - The structures were properly initialized
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EslSocketIoInit (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN ESL_IO_MGMT ** ppIo,
 | |
|   IN UINTN TokenCount,
 | |
|   IN ESL_IO_MGMT ** ppFreeQueue,
 | |
|   IN UINTN DebugFlags,
 | |
|   IN CHAR8 * pEventName,
 | |
|   IN PFN_API_IO_COMPLETE pfnCompletion
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Determine if the socket is configured
 | |
| 
 | |
|   This support routine is called to determine if the socket if the
 | |
|   configuration call was made to the network layer.  The following
 | |
|   routines call this routine to verify that they may be successful
 | |
|   in their operations:
 | |
|   <ul>
 | |
|     <li>::EslSocketGetLocalAddress</li>
 | |
|     <li>::EslSocketGetPeerAddress</li>
 | |
|     <li>::EslSocketPoll</li>
 | |
|     <li>::EslSocketReceive</li>
 | |
|     <li>::EslSocketTransmit</li>
 | |
|   </ul>
 | |
| 
 | |
|   @param [in] pSocket       Address of an ::ESL_SOCKET structure
 | |
| 
 | |
|   @retval EFI_SUCCESS - The socket is configured
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EslSocketIsConfigured (
 | |
|   IN ESL_SOCKET * pSocket
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Allocate a packet for a receive or transmit operation
 | |
| 
 | |
|   This support routine is called by ::EslSocketRxStart and the
 | |
|   network specific TxBuffer routines to get buffer space for the
 | |
|   next operation.
 | |
| 
 | |
|   @param [in] ppPacket      Address to receive the ::ESL_PACKET structure
 | |
|   @param [in] LengthInBytes Length of the packet structure
 | |
|   @param [in] ZeroBytes     Length of packet to zero
 | |
|   @param [in] DebugFlags    Flags for debug messages
 | |
| 
 | |
|   @retval EFI_SUCCESS - The packet was allocated successfully
 | |
| 
 | |
|  **/
 | |
| EFI_STATUS
 | |
| EslSocketPacketAllocate (
 | |
|   IN ESL_PACKET ** ppPacket,
 | |
|   IN size_t LengthInBytes,
 | |
|   IN size_t ZeroBytes,
 | |
|   IN UINTN DebugFlags
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Free a packet used for receive or transmit operation
 | |
| 
 | |
|   This support routine is called by the network specific Close
 | |
|   and TxComplete routines and during error cases in RxComplete
 | |
|   and TxBuffer.  Note that the network layers typically place
 | |
|   receive packets on the ESL_SOCKET::pRxFree list for reuse.
 | |
| 
 | |
|   @param [in] pPacket     Address of an ::ESL_PACKET structure
 | |
|   @param [in] DebugFlags  Flags for debug messages
 | |
| 
 | |
|   @retval EFI_SUCCESS - The packet was allocated successfully
 | |
| 
 | |
|  **/
 | |
| EFI_STATUS
 | |
| EslSocketPacketFree (
 | |
|   IN ESL_PACKET * pPacket,
 | |
|   IN UINTN DebugFlags
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Allocate and initialize a ESL_PORT structure.
 | |
| 
 | |
|   This routine initializes an ::ESL_PORT structure for use by
 | |
|   the socket.  This routine calls a routine via
 | |
|   ESL_PROTOCOL_API::pfnPortAllocate to initialize the network
 | |
|   specific resources.  The resources are released later by the
 | |
|   \ref PortCloseStateMachine.
 | |
| 
 | |
|   This support routine is called by ::EslSocketBind and
 | |
|   ::EslTcp4ListenComplete to connect the socket with the
 | |
|   underlying network adapter to the socket.
 | |
| 
 | |
|   @param [in] pSocket     Address of an ::ESL_SOCKET structure.
 | |
|   @param [in] pService    Address of an ::ESL_SERVICE structure.
 | |
|   @param [in] ChildHandle TCP4 child handle
 | |
|   @param [in] pSockAddr   Address of a sockaddr structure that contains the
 | |
|                           connection point on the local machine.  An IPv4 address
 | |
|                           of INADDR_ANY specifies that the connection is made to
 | |
|                           all of the network stacks on the platform.  Specifying a
 | |
|                           specific IPv4 address restricts the connection to the
 | |
|                           network stack supporting that address.  Specifying zero
 | |
|                           for the port causes the network layer to assign a port
 | |
|                           number from the dynamic range.  Specifying a specific
 | |
|                           port number causes the network layer to use that port.
 | |
|   @param [in] bBindTest   TRUE if EslSocketBindTest should be called
 | |
|   @param [in] DebugFlags  Flags for debug messages
 | |
|   @param [out] ppPort     Buffer to receive new ::ESL_PORT structure address
 | |
| 
 | |
|   @retval EFI_SUCCESS - Socket successfully created
 | |
| 
 | |
|  **/
 | |
| EFI_STATUS
 | |
| EslSocketPortAllocate (
 | |
|   IN ESL_SOCKET * pSocket,
 | |
|   IN ESL_SERVICE * pService,
 | |
|   IN EFI_HANDLE ChildHandle,
 | |
|   IN CONST struct sockaddr * pSockAddr,
 | |
|   IN BOOLEAN bBindTest,
 | |
|   IN UINTN DebugFlags,
 | |
|   OUT ESL_PORT ** ppPort
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Close a port.
 | |
| 
 | |
|   This routine releases the resources allocated by ::EslSocketPortAllocate.
 | |
|   This routine calls ESL_PROTOCOL_API::pfnPortClose to release the network
 | |
|   specific resources.
 | |
| 
 | |
|   This routine is called by:
 | |
|   <ul>
 | |
|     <li>::EslIp4PortAllocate - Port initialization failure</li>
 | |
|     <li>::EslSocketPortCloseRxDone - Last step of close processing</li>
 | |
|     <li>::EslTcp4ConnectComplete - Connection failure and reducint the port list to a single port</li>
 | |
|     <li>::EslTcp4PortAllocate - Port initialization failure</li>
 | |
|     <li>::EslUdp4PortAllocate - Port initialization failure</li>
 | |
|   </ul>
 | |
|   See the \ref PortCloseStateMachine section.
 | |
|   
 | |
|   @param [in] pPort       Address of an ::ESL_PORT structure.
 | |
| 
 | |
|   @retval EFI_SUCCESS     The port is closed
 | |
|   @retval other           Port close error
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EslSocketPortClose (
 | |
|   IN ESL_PORT * pPort
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Process the port close completion event
 | |
| 
 | |
|   This routine attempts to complete the port close operation.
 | |
| 
 | |
|   This routine is called by the TCP layer upon completion of
 | |
|   the close operation.
 | |
|   See the \ref PortCloseStateMachine section.
 | |
| 
 | |
|   @param [in] Event     The close completion event
 | |
| 
 | |
|   @param [in] pPort     Address of an ::ESL_PORT structure.
 | |
| 
 | |
| **/
 | |
| VOID
 | |
| EslSocketPortCloseComplete (
 | |
|   IN EFI_EVENT Event,
 | |
|   IN ESL_PORT * pPort
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Port close state 3
 | |
| 
 | |
|   This routine determines the state of the receive operations and
 | |
|   continues the close operation after the pending receive operations
 | |
|   are cancelled.
 | |
| 
 | |
|   This routine is called by
 | |
|   <ul>
 | |
|     <li>::EslIp4RxComplete</li>
 | |
|     <li>::EslSocketPortCloseComplete</li>
 | |
|     <li>::EslSocketPortCloseTxDone</li>
 | |
|     <li>::EslUdp4RxComplete</li>
 | |
|   </ul>
 | |
|   to determine the state of the receive operations.
 | |
|   See the \ref PortCloseStateMachine section.
 | |
| 
 | |
|   @param [in] pPort       Address of an ::ESL_PORT structure.
 | |
| 
 | |
|   @retval EFI_SUCCESS         The port is closed
 | |
|   @retval EFI_NOT_READY       The port is still closing
 | |
|   @retval EFI_ALREADY_STARTED Error, the port is in the wrong state,
 | |
|                               most likely the routine was called already.
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EslSocketPortCloseRxDone (
 | |
|   IN ESL_PORT * pPort
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Start the close operation on a port, state 1.
 | |
| 
 | |
|   This routine marks the port as closed and initiates the \ref
 | |
|   PortCloseStateMachine. The first step is to allow the \ref
 | |
|   TransmitEngine to run down.
 | |
| 
 | |
|   This routine is called by ::EslSocketCloseStart to initiate the socket
 | |
|   network specific close operation on the socket.
 | |
| 
 | |
|   @param [in] pPort       Address of an ::ESL_PORT structure.
 | |
|   @param [in] bCloseNow   Set TRUE to abort active transfers
 | |
|   @param [in] DebugFlags  Flags for debug messages
 | |
| 
 | |
|   @retval EFI_SUCCESS         The port is closed, not normally returned
 | |
|   @retval EFI_NOT_READY       The port has started the closing process
 | |
|   @retval EFI_ALREADY_STARTED Error, the port is in the wrong state,
 | |
|                               most likely the routine was called already.
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EslSocketPortCloseStart (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN BOOLEAN bCloseNow,
 | |
|   IN UINTN DebugFlags
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Port close state 2
 | |
| 
 | |
|   This routine determines the state of the transmit engine and
 | |
|   continue the close operation after the transmission is complete.
 | |
|   The next step is to stop the \ref ReceiveEngine.
 | |
|   See the \ref PortCloseStateMachine section.
 | |
| 
 | |
|   This routine is called by ::EslSocketPortCloseStart to determine
 | |
|   if the transmission is complete.
 | |
| 
 | |
|   @param [in] pPort           Address of an ::ESL_PORT structure.
 | |
| 
 | |
|   @retval EFI_SUCCESS         The port is closed, not normally returned
 | |
|   @retval EFI_NOT_READY       The port is still closing
 | |
|   @retval EFI_ALREADY_STARTED Error, the port is in the wrong state,
 | |
|                               most likely the routine was called already.
 | |
| 
 | |
| **/
 | |
| EFI_STATUS
 | |
| EslSocketPortCloseTxDone (
 | |
|   IN ESL_PORT * pPort
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Cancel the receive operations
 | |
| 
 | |
|   This routine cancels a pending receive operation.
 | |
|   See the \ref ReceiveEngine section.
 | |
| 
 | |
|   This routine is called by ::EslSocketShutdown when the socket
 | |
|   layer is being shutdown.
 | |
| 
 | |
|   @param [in] pPort     Address of an ::ESL_PORT structure
 | |
|   @param [in] pIo       Address of an ::ESL_IO_MGMT structure
 | |
| 
 | |
|  **/
 | |
| VOID
 | |
| EslSocketRxCancel (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN ESL_IO_MGMT * pIo
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Process the receive completion
 | |
| 
 | |
|   This routine queues the data in FIFO order in either the urgent
 | |
|   or normal data queues depending upon the type of data received.
 | |
|   See the \ref ReceiveEngine section.
 | |
| 
 | |
|   This routine is called when some data is received by:
 | |
|   <ul>
 | |
|     <li>::EslIp4RxComplete</li>
 | |
|     <li>::EslTcp4RxComplete</li>
 | |
|     <li>::EslUdp4RxComplete</li>
 | |
|   </ul>
 | |
| 
 | |
|   @param [in] pIo           Address of an ::ESL_IO_MGMT structure
 | |
|   @param [in] Status        Receive status
 | |
|   @param [in] LengthInBytes Length of the receive data
 | |
|   @param [in] bUrgent       TRUE if urgent data is received and FALSE
 | |
|                             for normal data.
 | |
| 
 | |
| **/
 | |
| VOID
 | |
| EslSocketRxComplete (
 | |
|   IN ESL_IO_MGMT * pIo,
 | |
|   IN EFI_STATUS Status,
 | |
|   IN UINTN LengthInBytes,
 | |
|   IN BOOLEAN bUrgent
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Poll a socket for pending receive activity.
 | |
| 
 | |
|   This routine is called at elivated TPL and extends the idle
 | |
|   loop which polls a socket down into the LAN driver layer to
 | |
|   determine if there is any receive activity.
 | |
| 
 | |
|   The ::EslSocketPoll, ::EslSocketReceive and ::EslSocketTransmit
 | |
|   routines call this routine when there is nothing to do.
 | |
| 
 | |
|   @param [in] pSocket   Address of an ::EFI_SOCKET structure.
 | |
| 
 | |
|  **/
 | |
| VOID
 | |
| EslSocketRxPoll (
 | |
|   IN ESL_SOCKET * pSocket
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Start a receive operation
 | |
| 
 | |
|   This routine posts a receive buffer to the network adapter.
 | |
|   See the \ref ReceiveEngine section.
 | |
| 
 | |
|   This support routine is called by:
 | |
|   <ul>
 | |
|     <li>::EslIp4Receive to restart the receive engine to release flow control.</li>
 | |
|     <li>::EslIp4RxComplete to continue the operation of the receive engine if flow control is not being applied.</li>
 | |
|     <li>::EslIp4SocketIsConfigured to start the recevie engine for the new socket.</li>
 | |
|     <li>::EslTcp4ListenComplete to start the recevie engine for the new socket.</li>
 | |
|     <li>::EslTcp4Receive to restart the receive engine to release flow control.</li>
 | |
|     <li>::EslTcp4RxComplete to continue the operation of the receive engine if flow control is not being applied.</li>
 | |
|     <li>::EslUdp4Receive to restart the receive engine to release flow control.</li>
 | |
|     <li>::EslUdp4RxComplete to continue the operation of the receive engine if flow control is not being applied.</li>
 | |
|     <li>::EslUdp4SocketIsConfigured to start the recevie engine for the new socket.</li>
 | |
|   </ul>
 | |
| 
 | |
|   @param [in] pPort       Address of an ::ESL_PORT structure.
 | |
| 
 | |
|  **/
 | |
| VOID
 | |
| EslSocketRxStart (
 | |
|   IN ESL_PORT * pPort
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Complete the transmit operation
 | |
| 
 | |
|   This support routine handles the transmit completion processing for
 | |
|   the various network layers.  It frees the ::ESL_IO_MGMT structure
 | |
|   and and frees packet resources by calling ::EslSocketPacketFree.
 | |
|   Transmit errors are logged in ESL_SOCKET::TxError.
 | |
|   See the \ref TransmitEngine section.
 | |
| 
 | |
|   This routine is called by:
 | |
|   <ul>
 | |
|     <li>::EslIp4TxComplete</li>
 | |
|     <li>::EslTcp4TxComplete</li>
 | |
|     <li>::EslTcp4TxOobComplete</li>
 | |
|     <li>::EslUdp4TxComplete</li>
 | |
|   </ul>
 | |
| 
 | |
|   @param [in] pIo             Address of an ::ESL_IO_MGMT structure
 | |
|   @param [in] LengthInBytes   Length of the data in bytes
 | |
|   @param [in] Status          Transmit operation status
 | |
|   @param [in] pQueueType      Zero terminated string describing queue type
 | |
|   @param [in] ppQueueHead     Transmit queue head address
 | |
|   @param [in] ppQueueTail     Transmit queue tail address
 | |
|   @param [in] ppActive        Active transmit queue address
 | |
|   @param [in] ppFree          Free transmit queue address
 | |
| 
 | |
|  **/
 | |
| VOID
 | |
| EslSocketTxComplete (
 | |
|   IN ESL_IO_MGMT * pIo,
 | |
|   IN UINT32 LengthInBytes,
 | |
|   IN EFI_STATUS Status,
 | |
|   IN CONST CHAR8 * pQueueType,
 | |
|   IN ESL_PACKET ** ppQueueHead,
 | |
|   IN ESL_PACKET ** ppQueueTail,
 | |
|   IN ESL_IO_MGMT ** ppActive,
 | |
|   IN ESL_IO_MGMT ** ppFree
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Transmit data using a network connection.
 | |
| 
 | |
|   This support routine starts a transmit operation on the
 | |
|   underlying network layer.
 | |
| 
 | |
|   The network specific code calls this routine to start a
 | |
|   transmit operation.  See the \ref TransmitEngine section.
 | |
| 
 | |
|   @param [in] pPort           Address of an ::ESL_PORT structure
 | |
|   @param [in] ppQueueHead     Transmit queue head address
 | |
|   @param [in] ppQueueTail     Transmit queue tail address
 | |
|   @param [in] ppActive        Active transmit queue address
 | |
|   @param [in] ppFree          Free transmit queue address
 | |
| 
 | |
|  **/
 | |
| VOID
 | |
| EslSocketTxStart (
 | |
|   IN ESL_PORT * pPort,
 | |
|   IN ESL_PACKET ** ppQueueHead,
 | |
|   IN ESL_PACKET ** ppQueueTail,
 | |
|   IN ESL_IO_MGMT ** ppActive,
 | |
|   IN ESL_IO_MGMT ** ppFree
 | |
|   );
 | |
| 
 | |
| //------------------------------------------------------------------------------
 | |
| 
 | |
| #endif  //  _SOCKET_H_
 |