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354 lines
11 KiB
C
354 lines
11 KiB
C
/** @file
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Mtftp6 support functions declaration.
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Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EFI_MTFTP6_SUPPORT_H__
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#define __EFI_MTFTP6_SUPPORT_H__
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//
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// The structure representing a range of block numbers, [Start, End].
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// It is used to remember the holes in the MTFTP block space. If all
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// the holes are filled in, then the download or upload has completed.
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//
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typedef struct {
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LIST_ENTRY Link;
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INTN Start;
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INTN End;
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INTN Round;
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INTN Bound;
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} MTFTP6_BLOCK_RANGE;
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/**
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Initialize the block range for either RRQ or WRQ. RRQ and WRQ have
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different requirements for Start and End. For example, during startup,
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WRQ initializes its whole valid block range to [0, 0xffff]. This
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is because the server will send an ACK0 to inform the user to start the
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upload. When the client receives an ACK0, it will remove 0 from the range,
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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
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in response to the client's RRQ. When BLOCK1 is received, the client will
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remove it from the block range and send an ACK. It also works if there
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is option negotiation.
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@param[in] Head The block range head to initialize.
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@param[in] Start The Start block number.
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@param[in] 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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Mtftp6InitBlockRange (
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IN LIST_ENTRY *Head,
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IN UINT16 Start,
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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[in] Head The block range head.
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@retval ==-1 If the block range is empty.
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@retval >-1 The first valid block number.
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**/
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INTN
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Mtftp6GetNextBlockNum (
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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. It
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removes all the blocks after the Last. MTFTP initialize the
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block range to the maximum possible range, such as [0, 0xffff]
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for WRQ. When it gets the last block number, it calls
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this function to set the last block number.
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@param[in] Head The block range list.
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@param[in] Last The last block number.
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**/
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VOID
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Mtftp6SetLastBlockNum (
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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[in] Head The block range list to remove from.
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@param[in] Num The block number to remove.
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@param[in] Completed Whether Num is the last block number.
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@param[out] BlockCounter The continuous block counter instead of the value after roll-over.
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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 resources.
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**/
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EFI_STATUS
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Mtftp6RemoveBlockNum (
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IN LIST_ENTRY *Head,
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IN UINT16 Num,
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IN BOOLEAN Completed,
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OUT UINT64 *BlockCounter
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);
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/**
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Build and transmit the request packet for the Mtftp6 instance.
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@param[in] Instance The pointer to the Mtftp6 instance.
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@param[in] Operation The operation code of this packet.
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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 was 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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Mtftp6SendRequest (
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IN MTFTP6_INSTANCE *Instance,
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IN UINT16 Operation
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);
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/**
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Build and send an error packet.
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@param[in] Instance The pointer to the Mtftp6 instance.
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@param[in] ErrCode The error code in the packet.
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@param[in] ErrInfo The error message in the packet.
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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 was 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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Mtftp6SendError (
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IN MTFTP6_INSTANCE *Instance,
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IN UINT16 ErrCode,
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IN UINT8* ErrInfo
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);
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/**
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Send the packet for the Mtftp6 instance.
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@param[in] Instance The pointer to the Mtftp6 instance.
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@param[in] Packet The pointer to the packet to be sent.
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@retval EFI_SUCCESS The packet was 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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Mtftp6TransmitPacket (
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IN MTFTP6_INSTANCE *Instance,
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IN NET_BUF *Packet
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);
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/**
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Check packet for GetInfo callback routine.
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@param[in] This The pointer to the Mtftp6 protocol.
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@param[in] Token The pointer to the Mtftp6 token.
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@param[in] PacketLen The length of the packet
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@param[in] Packet The pointer to the received packet.
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@retval EFI_SUCCESS The check process passed successfully.
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@retval EFI_ABORTED Abort the Mtftp6 operation.
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**/
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EFI_STATUS
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EFIAPI
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Mtftp6CheckPacket (
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IN EFI_MTFTP6_PROTOCOL *This,
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IN EFI_MTFTP6_TOKEN *Token,
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IN UINT16 PacketLen,
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IN EFI_MTFTP6_PACKET *Packet
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);
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/**
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The dummy configure routine for create a new Udp6 Io.
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@param[in] UdpIo The pointer to the Udp6 Io.
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@param[in] Context The pointer to the context.
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@retval EFI_SUCCESS The value is always returned.
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**/
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EFI_STATUS
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EFIAPI
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Mtftp6ConfigDummyUdpIo (
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IN UDP_IO *UdpIo,
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IN VOID *Context
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);
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/**
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The configure routine for the Mtftp6 instance to transmit/receive.
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@param[in] UdpIo The pointer to the Udp6 Io.
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@param[in] ServerIp The pointer to the server address.
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@param[in] ServerPort The pointer to the server port.
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@param[in] LocalIp The pointer to the local address.
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@param[in] LocalPort The pointer to the local port.
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@retval EFI_SUCCESS Configure the Udp6 Io for Mtftp6 successfully.
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@retval EFI_NO_MAPPING The corresponding Ip6 instance has not been
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configured yet.
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**/
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EFI_STATUS
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Mtftp6ConfigUdpIo (
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IN UDP_IO *UdpIo,
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IN EFI_IPv6_ADDRESS *ServerIp,
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IN UINT16 ServerPort,
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IN EFI_IPv6_ADDRESS *LocalIp,
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IN UINT16 LocalPort
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);
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/**
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Clean up the current Mtftp6 operation.
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@param[in] Instance The pointer to the Mtftp6 instance.
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@param[in] Result The result to be returned to the user.
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**/
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VOID
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Mtftp6OperationClean (
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IN MTFTP6_INSTANCE *Instance,
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IN EFI_STATUS Result
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);
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/**
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Start the Mtftp6 instance to perform the operation, such as read file,
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write file, and read directory.
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@param[in] This The MTFTP session
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@param[in] Token The token that encapsulates the user's request.
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@param[in] OpCode The operation to perform.
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@retval EFI_INVALID_PARAMETER Some of the parameters are invalid.
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@retval EFI_NOT_STARTED The MTFTP session hasn't been configured.
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@retval EFI_ALREADY_STARTED There is pending operation for the session.
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@retval EFI_SUCCESS The operation was successfully started.
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**/
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EFI_STATUS
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Mtftp6OperationStart (
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IN EFI_MTFTP6_PROTOCOL *This,
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IN EFI_MTFTP6_TOKEN *Token,
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IN UINT16 OpCode
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);
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/**
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The timer ticking routine for the Mtftp6 instance.
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@param[in] Event The pointer to the ticking event.
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@param[in] Context The pointer to the context.
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**/
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VOID
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EFIAPI
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Mtftp6OnTimerTick (
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IN EFI_EVENT Event,
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IN VOID *Context
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);
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/**
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The packet process callback for Mtftp6 upload.
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@param[in] UdpPacket The pointer to the packet received.
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@param[in] UdpEpt The pointer to the Udp6 access point.
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@param[in] IoStatus The status from the Udp6 instance.
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@param[in] Context The pointer to the context.
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**/
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VOID
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EFIAPI
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Mtftp6WrqInput (
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IN NET_BUF *UdpPacket,
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IN UDP_END_POINT *UdpEpt,
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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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Start the Mtftp6 instance to upload. It will first init some states,
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then send the WRQ request packet, and start to receive the packet.
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@param[in] Instance The pointer to the Mtftp6 instance.
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@param[in] Operation The operation code of current packet.
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@retval EFI_SUCCESS The Mtftp6 was started to upload.
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@retval Others Failed to start to upload.
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**/
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EFI_STATUS
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Mtftp6WrqStart (
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IN MTFTP6_INSTANCE *Instance,
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IN UINT16 Operation
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);
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/**
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The packet process callback for Mtftp6 download.
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@param[in] UdpPacket The pointer to the packet received.
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@param[in] UdpEpt The pointer to the Udp6 access point.
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@param[in] IoStatus The status from Udp6 instance.
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@param[in] Context The pointer to the context.
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**/
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VOID
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EFIAPI
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Mtftp6RrqInput (
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IN NET_BUF *UdpPacket,
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IN UDP_END_POINT *UdpEpt,
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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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Start the Mtftp6 instance to download. It first initializes some
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of the internal states then builds and sends an RRQ reqeuest packet.
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Finally, it starts receive for the downloading.
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@param[in] Instance The pointer to the Mtftp6 instance.
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@param[in] Operation The operation code of current packet.
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@retval EFI_SUCCESS The Mtftp6 was started to download.
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@retval Others Failed to start to download.
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**/
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EFI_STATUS
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Mtftp6RrqStart (
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IN MTFTP6_INSTANCE *Instance,
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IN UINT16 Operation
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);
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#endif
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