Insert comments for functions/macros and add the file headers.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7293 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -1,23 +1,15 @@
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/** @file
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Copyright (c) 2006, Intel Corporation
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Support routines for MTFTP.
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Copyright (c) 2006, Intel Corporation<BR>
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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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http://opensource.org/licenses/bsd-license.php<BR>
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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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Module Name:
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Mtftp4Support.h
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Abstract:
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Support routines for MTFTP
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**/
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#ifndef __EFI_MTFTP4_SUPPORT_H__
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@@ -35,6 +27,27 @@ typedef struct {
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} MTFTP4_BLOCK_RANGE;
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/**
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Initialize the block range for either RRQ or WRQ.
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RRQ and WRQ have different requirements for Start and End.
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For example, during start up, WRQ initializes its whole valid block range
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to [0, 0xffff]. This is bacause the server will send us a ACK0 to inform us
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to start the upload. When the client received ACK0, it will remove 0 from the
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range, get the next block number, which is 1, then upload the BLOCK1. For RRQ
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without option negotiation, the server will directly send us the BLOCK1 in
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response to the client's RRQ. When received BLOCK1, the client will remove
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it from the block range and send an ACK. It also works if there is option
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negotiation.
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@param Head The block range head to initialize
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@param Start The Start block number.
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@param End The last block number.
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@retval EFI_OUT_OF_RESOURCES Failed to allocate memory for initial block range
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@retval EFI_SUCCESS The initial block range is created.
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**/
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EFI_STATUS
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Mtftp4InitBlockRange (
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IN LIST_ENTRY *Head,
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@@ -42,51 +55,139 @@ Mtftp4InitBlockRange (
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IN UINT16 End
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);
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/**
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Get the first valid block number on the range list.
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@param Head The block range head
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@return The first valid block number, -1 if the block range is empty.
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**/
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INTN
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Mtftp4GetNextBlockNum (
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IN LIST_ENTRY *Head
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);
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/**
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Set the last block number of the block range list.
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It will remove all the blocks after the Last. MTFTP initialize the block range
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to the maximum possible range, such as [0, 0xffff] for WRQ. When it gets the
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last block number, it will call this function to set the last block number.
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@param Head The block range list
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@param Last The last block number
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**/
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VOID
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Mtftp4SetLastBlockNum (
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IN LIST_ENTRY *Head,
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IN UINT16 Last
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);
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/**
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Remove the block number from the block range list.
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@param Head The block range list to remove from
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@param Num The block number to remove
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@retval EFI_NOT_FOUND The block number isn't in the block range list
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@retval EFI_SUCCESS The block number has been removed from the list
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@retval EFI_OUT_OF_RESOURCES Failed to allocate resource
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**/
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EFI_STATUS
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Mtftp4RemoveBlockNum (
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IN LIST_ENTRY *Head,
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IN UINT16 Num
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);
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/**
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Set the timeout for the instance. User a longer time for passive instances.
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@param Instance The Mtftp session to set time out
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**/
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VOID
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Mtftp4SetTimeout (
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IN MTFTP4_PROTOCOL *Instance
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IN OUT MTFTP4_PROTOCOL *Instance
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);
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/**
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Send the packet for the instance.
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It will first save a reference to the packet for later retransmission.
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Then determine the destination port, listen port for requests, and connected
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port for others. At last, send the packet out.
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@param Instance The Mtftp instance
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@param Packet The packet to send
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@retval EFI_SUCCESS The packet is sent out
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@retval Others Failed to transmit the packet.
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**/
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EFI_STATUS
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Mtftp4SendPacket (
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IN MTFTP4_PROTOCOL *Instance,
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IN NET_BUF *Packet
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IN OUT MTFTP4_PROTOCOL *Instance,
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IN OUT NET_BUF *Packet
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);
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/**
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Build then transmit the request packet for the MTFTP session.
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@param Instance The Mtftp session
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@retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the request
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@retval EFI_SUCCESS The request is built and sent
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@retval Others Failed to transmit the packet.
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**/
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EFI_STATUS
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Mtftp4SendRequest (
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IN MTFTP4_PROTOCOL *Instance
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);
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/**
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Build then send an error message.
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@param Instance The MTFTP session
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@param ErrCode The error code
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@param ErrInfo The error message
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@retval EFI_OUT_OF_RESOURCES Failed to allocate memory for the error packet
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@retval EFI_SUCCESS The error packet is transmitted.
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@retval Others Failed to transmit the packet.
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**/
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EFI_STATUS
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Mtftp4SendError (
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IN MTFTP4_PROTOCOL *Instance,
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IN UINT16 ErrCode,
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IN UINT8* ErrInfo
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IN UINT8 *ErrInfo
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);
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/**
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Retransmit the last packet for the instance.
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@param Instance The Mtftp instance
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@retval EFI_SUCCESS The last packet is retransmitted.
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@retval Others Failed to retransmit.
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**/
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EFI_STATUS
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Mtftp4Retransmit (
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IN MTFTP4_PROTOCOL *Instance
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);
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/**
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The timer ticking function for the Mtftp service instance.
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@param Event The ticking event
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@param Context The Mtftp service instance
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**/
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VOID
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EFIAPI
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Mtftp4OnTimerTick (
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