4652be0c5a
Signed-off-by: lpleahy git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13802 6f19259b-4bc3-4df7-8a09-765794883524
651 lines
21 KiB
C
651 lines
21 KiB
C
/** @file
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Definitions for the EFI Socket protocol.
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Copyright (c) 2011, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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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 _EFI_SOCKET_H_
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#define _EFI_SOCKET_H_
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#include <errno.h>
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#include <Uefi.h>
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#include <netinet/in.h>
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#include <sys/poll.h>
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#include <sys/socket.h>
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//------------------------------------------------------------------------------
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// Data Types
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//------------------------------------------------------------------------------
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/**
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EfiSocketLib (SocketDxe) interface
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**/
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typedef struct _EFI_SOCKET_PROTOCOL EFI_SOCKET_PROTOCOL;
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/**
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Constructor/Destructor
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@retval EFI_SUCCESS The operation was successful
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**/
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typedef
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EFI_STATUS
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(* PFN_ESL_xSTRUCTOR) (
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VOID
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);
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//------------------------------------------------------------------------------
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// Data
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//------------------------------------------------------------------------------
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extern PFN_ESL_xSTRUCTOR mpfnEslConstructor; ///< Constructor address for EslSocketLib
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extern PFN_ESL_xSTRUCTOR mpfnEslDestructor; ///< Destructor address for EslSocketLib
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extern EFI_GUID gEfiSocketProtocolGuid; ///< Socket protocol GUID
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extern EFI_GUID gEfiSocketServiceBindingProtocolGuid; ///< Socket layer service binding protocol GUID
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//------------------------------------------------------------------------------
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// Socket API
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//------------------------------------------------------------------------------
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/**
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Accept a network connection.
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This routine calls the network specific layer to remove the next
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connection from the FIFO.
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The ::accept calls this routine to poll for a network
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connection to the socket. When a connection is available
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this routine returns the ::EFI_SOCKET_PROTOCOL structure address
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associated with the new socket and the remote network address
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if requested.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] pSockAddr Address of a buffer to receive the remote
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network address.
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@param [in, out] pSockAddrLength Length in bytes of the address buffer.
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On output specifies the length of the
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remote network address.
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@param [out] ppSocketProtocol Address of a buffer to receive the
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::EFI_SOCKET_PROTOCOL instance
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associated with the new socket.
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS New connection successfully created
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@retval EFI_NOT_READY No connection is available
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**/
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typedef
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EFI_STATUS
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(* PFN_ACCEPT) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN struct sockaddr * pSockAddr,
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IN OUT socklen_t * pSockAddrLength,
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IN EFI_SOCKET_PROTOCOL ** ppSocketProtocol,
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IN int * pErrno
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);
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/**
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Bind a name to a socket.
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This routine calls the network specific layer to save the network
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address of the local connection point.
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The ::bind routine calls this routine to connect a name
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(network address and port) to a socket on the local machine.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] pSockAddr Address of a sockaddr structure that contains the
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connection point on the local machine. An IPv4 address
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of INADDR_ANY specifies that the connection is made to
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all of the network stacks on the platform. Specifying a
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specific IPv4 address restricts the connection to the
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network stack supporting that address. Specifying zero
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for the port causes the network layer to assign a port
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number from the dynamic range. Specifying a specific
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port number causes the network layer to use that port.
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@param [in] SockAddrLen Specifies the length in bytes of the sockaddr structure.
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Socket successfully created
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**/
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typedef
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EFI_STATUS
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(* PFN_BIND) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN const struct sockaddr * pSockAddr,
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IN socklen_t SockAddrLength,
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OUT int * pErrno
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);
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/**
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Determine if the socket is closed
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This routine checks the state of the socket to determine if
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the network specific layer has completed the close operation.
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The ::close routine polls this routine to determine when the
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close operation is complete. The close operation needs to
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reverse the operations of the ::EslSocketAllocate routine.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS Socket successfully closed
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@retval EFI_NOT_READY Close still in progress
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@retval EFI_ALREADY Close operation already in progress
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@retval Other Failed to close the socket
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**/
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typedef
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EFI_STATUS
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(* PFN_CLOSE_POLL) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN int * pErrno
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);
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/**
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Start the close operation on the socket
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This routine calls the network specific layer to initiate the
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close state machine. This routine then calls the network
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specific layer to determine if the close state machine has gone
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to completion. The result from this poll is returned to the
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caller.
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The ::close routine calls this routine to start the close
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operation which reverses the operations of the
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::EslSocketAllocate routine. The close routine then polls
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the ::EslSocketClosePoll routine to determine when the
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socket is closed.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] bCloseNow Boolean to control close behavior
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS Socket successfully closed
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@retval EFI_NOT_READY Close still in progress
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@retval EFI_ALREADY Close operation already in progress
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@retval Other Failed to close the socket
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**/
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typedef
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EFI_STATUS
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(* PFN_CLOSE_START) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN BOOLEAN bCloseNow,
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IN int * pErrno
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);
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/**
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Connect to a remote system via the network.
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This routine calls the network specific layer to establish
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the remote system address and establish the connection to
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the remote system.
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The ::connect routine calls this routine to establish a
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connection with the specified remote system. This routine
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is designed to be polled by the connect routine for completion
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of the network connection.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] pSockAddr Network address of the remote system.
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@param [in] SockAddrLength Length in bytes of the network address.
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS The connection was successfully established.
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@retval EFI_NOT_READY The connection is in progress, call this routine again.
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@retval Others The connection attempt failed.
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**/
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typedef
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EFI_STATUS
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(* PFN_CONNECT) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN const struct sockaddr * pSockAddr,
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IN socklen_t SockAddrLength,
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IN int * pErrno
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);
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/**
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Get the local address.
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This routine calls the network specific layer to get the network
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address of the local host connection point.
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The ::getsockname routine calls this routine to obtain the network
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address associated with the local host connection point.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [out] pAddress Network address to receive the local system address
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@param [in,out] pAddressLength Length of the local network address structure
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Local address successfully returned
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**/
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typedef
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EFI_STATUS
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(* PFN_GET_LOCAL) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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OUT struct sockaddr * pAddress,
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IN OUT socklen_t * pAddressLength,
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IN int * pErrno
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);
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/**
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Get the peer address.
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This routine calls the network specific layer to get the remote
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system connection point.
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The ::getpeername routine calls this routine to obtain the network
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address of the remote connection point.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [out] pAddress Network address to receive the remote system address
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@param [in,out] pAddressLength Length of the remote network address structure
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Remote address successfully returned
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**/
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typedef
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EFI_STATUS
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(* PFN_GET_PEER) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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OUT struct sockaddr * pAddress,
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IN OUT socklen_t * pAddressLength,
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IN int * pErrno
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);
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/**
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Establish the known port to listen for network connections.
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This routine calls into the network protocol layer to establish
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a handler that is called upon connection completion. The handler
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is responsible for inserting the connection into the FIFO.
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The ::listen routine indirectly calls this routine to place the
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socket into a state that enables connection attempts. Connections
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are placed in a FIFO that is serviced by the application. The
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application calls the ::accept (::EslSocketAccept) routine to
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remove the next connection from the FIFO and get the associated
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socket and address.
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@param [in] pSocketProtocol Address of the socket protocol structure.
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@param [in] Backlog Backlog specifies the maximum FIFO depth for
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the connections waiting for the application
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to call accept. Connection attempts received
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while the queue is full are refused.
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Socket successfully created
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@retval Other - Failed to enable the socket for listen
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**/
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typedef
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EFI_STATUS
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(* PFN_LISTEN) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN INT32 Backlog,
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OUT int * pErrno
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);
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/**
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Get the socket options
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This routine handles the socket level options and passes the
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others to the network specific layer.
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The ::getsockopt routine calls this routine to retrieve the
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socket options one at a time by name.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] level Option protocol level
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@param [in] OptionName Name of the option
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@param [out] pOptionValue Buffer to receive the option value
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@param [in,out] pOptionLength Length of the buffer in bytes,
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upon return length of the option value in bytes
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Socket data successfully received
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**/
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typedef
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EFI_STATUS
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(* PFN_OPTION_GET) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN int level,
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IN int OptionName,
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OUT void * __restrict pOptionValue,
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IN OUT socklen_t * __restrict pOptionLength,
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IN int * pErrno
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);
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/**
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Set the socket options
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This routine handles the socket level options and passes the
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others to the network specific layer.
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The ::setsockopt routine calls this routine to adjust the socket
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options one at a time by name.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] level Option protocol level
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@param [in] OptionName Name of the option
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@param [in] pOptionValue Buffer containing the option value
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@param [in] OptionLength Length of the buffer in bytes
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Option successfully set
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**/
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typedef
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EFI_STATUS
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(* PFN_OPTION_SET) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN int level,
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IN int OptionName,
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IN CONST void * pOptionValue,
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IN socklen_t OptionLength,
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IN int * pErrno
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);
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/**
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Poll a socket for pending activity.
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This routine builds a detected event mask which is returned to
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the caller in the buffer provided.
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The ::poll routine calls this routine to determine if the socket
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needs to be serviced as a result of connection, error, receive or
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transmit activity.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] Events Events of interest for this socket
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@param [in] pEvents Address to receive the detected events
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Socket successfully polled
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@retval EFI_INVALID_PARAMETER - When pEvents is NULL
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**/
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typedef
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EFI_STATUS
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(* PFN_POLL) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN short Events,
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IN short * pEvents,
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IN int * pErrno
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);
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/**
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Receive data from a network connection.
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This routine calls the network specific routine to remove the
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next portion of data from the receive queue and return it to the
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caller.
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The ::recvfrom routine calls this routine to determine if any data
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is received from the remote system. Note that the other routines
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::recv and ::read are layered on top of ::recvfrom.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] Flags Message control flags
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@param [in] BufferLength Length of the the buffer
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@param [in] pBuffer Address of a buffer to receive the data.
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@param [in] pDataLength Number of received data bytes in the buffer.
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@param [out] pAddress Network address to receive the remote system address
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@param [in,out] pAddressLength Length of the remote network address structure
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Socket data successfully received
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**/
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typedef
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EFI_STATUS
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(* PFN_RECEIVE) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN int Flags,
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IN size_t BufferLength,
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IN UINT8 * pBuffer,
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OUT size_t * pDataLength,
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OUT struct sockaddr * pAddress,
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IN OUT socklen_t * pAddressLength,
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IN int * pErrno
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);
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/**
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Shutdown the socket receive and transmit operations
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This routine sets a flag to stop future transmissions and calls
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the network specific layer to cancel the pending receive operation.
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The ::shutdown routine calls this routine to stop receive and transmit
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operations on the socket.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] How Which operations to stop
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Socket operations successfully shutdown
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**/
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typedef
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EFI_STATUS
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(* PFN_SHUTDOWN) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN int How,
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IN int * pErrno
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);
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/**
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Initialize an endpoint for network communication.
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This routine initializes the communication endpoint.
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The ::socket routine calls this routine indirectly to create
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the communication endpoint.
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@param [in] pSocketProtocol Address of the socket protocol structure.
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@param [in] domain Select the family of protocols for the client or server
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application. See the ::socket documentation for values.
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@param [in] type Specifies how to make the network connection.
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See the ::socket documentation for values.
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@param [in] protocol Specifies the lower layer protocol to use.
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See the ::socket documentation for values.
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Socket successfully created
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@retval EFI_INVALID_PARAMETER - Invalid domain value, errno = EAFNOSUPPORT
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@retval EFI_INVALID_PARAMETER - Invalid type value, errno = EINVAL
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@retval EFI_INVALID_PARAMETER - Invalid protocol value, errno = EINVAL
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**/
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typedef
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EFI_STATUS
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(*PFN_SOCKET) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN int domain,
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IN int type,
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IN int protocol,
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IN int * pErrno
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);
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/**
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Send data using a network connection.
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This routine calls the network specific layer to queue the data
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for transmission. Eventually the buffer will reach the head of
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the queue and will get transmitted over the network. For datagram
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sockets there is no guarantee that the data reaches the application
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running on the remote system.
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The ::sendto routine calls this routine to send data to the remote
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system. Note that ::send and ::write are layered on top of ::sendto.
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@param [in] pSocketProtocol Address of the ::EFI_SOCKET_PROTOCOL structure.
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@param [in] Flags Message control flags
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@param [in] BufferLength Length of the the buffer
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@param [in] pBuffer Address of a buffer containing the data to send
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@param [in] pDataLength Address to receive the number of data bytes sent
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@param [in] pAddress Network address of the remote system address
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@param [in] AddressLength Length of the remote network address structure
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@param [out] pErrno Address to receive the errno value upon completion.
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@retval EFI_SUCCESS - Socket data successfully queued for transmit
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**/
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typedef
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EFI_STATUS
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(* PFN_TRANSMIT) (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol,
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IN int Flags,
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IN size_t BufferLength,
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IN CONST UINT8 * pBuffer,
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OUT size_t * pDataLength,
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IN const struct sockaddr * pAddress,
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IN socklen_t AddressLength,
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IN int * pErrno
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);
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//------------------------------------------------------------------------------
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// Socket Protocol
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//------------------------------------------------------------------------------
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/**
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Socket protocol declaration
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**/
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typedef struct _EFI_SOCKET_PROTOCOL {
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EFI_HANDLE SocketHandle; ///< Handle for the socket
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PFN_ACCEPT pfnAccept; ///< Accept a network connection
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PFN_BIND pfnBind; ///< Bind a local address to the socket
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PFN_CLOSE_POLL pfnClosePoll; ///< Determine if the socket is closed
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PFN_CLOSE_START pfnCloseStart; ///< Start the close operation
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PFN_CONNECT pfnConnect; ///< Connect to a remote system
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PFN_GET_LOCAL pfnGetLocal; ///< Get local address
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PFN_GET_PEER pfnGetPeer; ///< Get peer address
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PFN_LISTEN pfnListen; ///< Enable connection attempts on known port
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PFN_OPTION_GET pfnOptionGet; ///< Get socket options
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PFN_OPTION_SET pfnOptionSet; ///< Set socket options
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PFN_POLL pfnPoll; ///< Poll for socket activity
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PFN_RECEIVE pfnReceive; ///< Receive data from a socket
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PFN_SHUTDOWN pfnShutdown; ///< Shutdown receive and transmit operations
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PFN_SOCKET pfnSocket; ///< Initialize the socket
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PFN_TRANSMIT pfnTransmit; ///< Transmit data using the socket
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} GCC_EFI_SOCKET_PROTOCOL;
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//------------------------------------------------------------------------------
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// Non-blocking routines
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//------------------------------------------------------------------------------
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/**
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Non blocking version of ::accept.
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@param [in] s Socket file descriptor returned from ::socket.
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@param [in] address Address of a buffer to receive the remote network address.
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@param [in, out] address_len Address of a buffer containing the Length in bytes
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of the remote network address buffer. Upon return,
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contains the length of the remote network address.
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@return This routine returns zero if successful and -1 when an error occurs.
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In the case of an error, ::errno contains more details.
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**/
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int
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AcceptNB (
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int s,
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struct sockaddr * address,
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socklen_t * address_len
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);
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/**
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Free the socket resources
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This releases the socket resources allocated by calling
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EslServiceGetProtocol.
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This routine is called from the ::close routine in BsdSocketLib
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to release the socket resources.
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@param [in] pSocketProtocol Address of an ::EFI_SOCKET_PROTOCOL
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structure
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@return Value for ::errno, zero (0) indicates success.
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**/
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int
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EslServiceFreeProtocol (
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IN EFI_SOCKET_PROTOCOL * pSocketProtocol
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);
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/**
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Connect to the EFI socket library
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@param [in] ppSocketProtocol Address to receive the socket protocol address
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@return Value for ::errno, zero (0) indicates success.
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**/
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int
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EslServiceGetProtocol (
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IN EFI_SOCKET_PROTOCOL ** ppSocketProtocol
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);
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//------------------------------------------------------------------------------
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#endif // _EFI_SOCKET_H_
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