97b38d4e35
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6321 6f19259b-4bc3-4df7-8a09-765794883524
245 lines
7.0 KiB
C
245 lines
7.0 KiB
C
/** @file
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The helper routines to access UDP service. It is used by both
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DHCP and MTFTP.
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Copyright (c) 2006 - 2008, 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 _UDP4IO_H_
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#define _UDP4IO_H_
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#include <Protocol/Udp4.h>
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#include <Library/UdpIoLib.h>
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#include <Library/NetLib.h>
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typedef struct _UDP_IO_PORT UDP_IO_PORT;
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typedef enum {
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UDP_IO_RX_SIGNATURE = EFI_SIGNATURE_32 ('U', 'D', 'P', 'R'),
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UDP_IO_TX_SIGNATURE = EFI_SIGNATURE_32 ('U', 'D', 'P', 'T'),
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UDP_IO_SIGNATURE = EFI_SIGNATURE_32 ('U', 'D', 'P', 'I')
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} UDP_IO_SIGNATURE_TYPE;
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typedef struct {
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IP4_ADDR LocalAddr;
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UINT16 LocalPort;
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IP4_ADDR RemoteAddr;
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UINT16 RemotePort;
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} UDP_POINTS;
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//
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// This prototype is used by both receive and transmission.
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// When receiving Netbuf is allocated by UDP access point, and
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// released by user. When transmitting, the NetBuf is from user,
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// and provided to the callback as a reference.
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//
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typedef
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VOID
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(*UDP_IO_CALLBACK) (
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IN NET_BUF *Packet,
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IN UDP_POINTS *Points,
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IN EFI_STATUS IoStatus,
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IN VOID *Context
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);
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//
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// Each receive request is wrapped in an UDP_RX_TOKEN. Upon completion,
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// the CallBack will be called. Only one receive request is send to UDP.
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// HeadLen gives the length of the application's header. UDP_IO will
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// make the application's header continous before delivery up.
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//
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typedef struct {
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UINT32 Signature;
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UDP_IO_PORT *UdpIo;
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UDP_IO_CALLBACK CallBack;
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VOID *Context;
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UINT32 HeadLen;
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EFI_UDP4_COMPLETION_TOKEN UdpToken;
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} UDP_RX_TOKEN;
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//
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// Each transmit request is wrapped in an UDP_TX_TOKEN. Upon completion,
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// the CallBack will be called. There can be several transmit requests.
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//
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typedef struct {
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UINT32 Signature;
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LIST_ENTRY Link;
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UDP_IO_PORT *UdpIo;
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UDP_IO_CALLBACK CallBack;
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NET_BUF *Packet;
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VOID *Context;
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EFI_UDP4_SESSION_DATA UdpSession;
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EFI_IPv4_ADDRESS Gateway;
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EFI_UDP4_COMPLETION_TOKEN UdpToken;
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EFI_UDP4_TRANSMIT_DATA UdpTxData;
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} UDP_TX_TOKEN;
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struct _UDP_IO_PORT {
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UINT32 Signature;
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LIST_ENTRY Link;
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INTN RefCnt;
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//
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// Handle used to create/destory UDP child
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//
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EFI_HANDLE Controller;
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EFI_HANDLE Image;
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EFI_HANDLE UdpHandle;
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EFI_UDP4_PROTOCOL *Udp;
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EFI_UDP4_CONFIG_DATA UdpConfig;
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EFI_SIMPLE_NETWORK_MODE SnpMode;
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LIST_ENTRY SentDatagram;
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UDP_RX_TOKEN *RecvRequest;
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};
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typedef
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EFI_STATUS
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(*UDP_IO_CONFIG) (
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IN UDP_IO_PORT *UdpIo,
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IN VOID *Context
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);
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typedef
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BOOLEAN
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(*UDP_IO_TO_CANCEL) (
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IN UDP_TX_TOKEN *Token,
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IN VOID *Context
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);
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/**
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Create a UDP IO port to access the UDP service. It will
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create and configure a UDP child.
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@param Controller The controller that has the UDP service binding
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protocol installed.
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@param ImageHandle The image handle for the driver.
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@param Configure The function to configure the created UDP child
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@param Context The opaque parameter for the Configure funtion.
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@return A point to just created UDP IO port or NULL if failed.
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**/
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UDP_IO_PORT *
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EFIAPI
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UdpIoCreatePort (
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IN EFI_HANDLE Controller,
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IN EFI_HANDLE ImageHandle,
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IN UDP_IO_CONFIG Configure,
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IN VOID *Context
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);
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/**
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Free the UDP IO port and all its related resources including
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all the transmitted packet.
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@param UdpIo The UDP IO port to free.
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@retval EFI_SUCCESS The UDP IO port is freed.
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**/
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EFI_STATUS
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EFIAPI
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UdpIoFreePort (
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IN UDP_IO_PORT *UdpIo
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);
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/**
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Clean up the UDP IO port. It will release all the transmitted
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datagrams and receive request. It will also configure NULL the
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UDP child.
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@param UdpIo UDP IO port to clean up.
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@return None
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**/
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VOID
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EFIAPI
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UdpIoCleanPort (
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IN UDP_IO_PORT *UdpIo
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);
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/**
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Send a packet through the UDP IO port.
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@param UdpIo The UDP IO Port to send the packet through
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@param Packet The packet to send
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@param EndPoint The local and remote access point
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@param Gateway The gateway to use
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@param CallBack The call back function to call when packet is
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transmitted or failed.
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@param Context The opque parameter to the CallBack
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@retval EFI_OUT_OF_RESOURCES Failed to allocate resource for the packet
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@retval EFI_SUCCESS The packet is successfully delivered to UDP for
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transmission.
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**/
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EFI_STATUS
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EFIAPI
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UdpIoSendDatagram (
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IN UDP_IO_PORT *UdpIo,
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IN NET_BUF *Packet,
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IN UDP_POINTS *EndPoint, OPTIONAL
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IN IP4_ADDR Gateway,
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IN UDP_IO_CALLBACK CallBack,
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IN VOID *Context
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);
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/**
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Cancel a single sent datagram.
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@param UdpIo The UDP IO port to cancel the packet from
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@param Packet The packet to cancel
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@return None
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**/
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VOID
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EFIAPI
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UdpIoCancelSentDatagram (
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IN UDP_IO_PORT *UdpIo,
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IN NET_BUF *Packet
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);
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/**
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Issue a receive request to the UDP IO port.
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@param UdpIo The UDP IO port to recieve the packet from.
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@param CallBack The call back function to execute when receive
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finished.
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@param Context The opque context to the call back
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@param HeadLen The lenght of the application's header
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@retval EFI_ALREADY_STARTED There is already a pending receive request. Only
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one receive request is supported.
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@retval EFI_OUT_OF_RESOURCES Failed to allocate some resource.
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@retval EFI_SUCCESS The receive request is issued successfully.
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**/
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EFI_STATUS
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EFIAPI
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UdpIoRecvDatagram (
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IN UDP_IO_PORT *UdpIo,
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IN UDP_IO_CALLBACK CallBack,
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IN VOID *Context,
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IN UINT32 HeadLen
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);
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#endif
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