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audk/NetworkPkg/Mtftp6Dxe/Mtftp6Impl.c

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/** @file
This EFI_MTFTP6_PROTOCOL interface implementation.
It supports the following RFCs:
RFC1350 - THE TFTP PROTOCOL (REVISION 2)
RFC2090 - TFTP Multicast Option
RFC2347 - TFTP Option Extension
RFC2348 - TFTP Blocksize Option
RFC2349 - TFTP Timeout Interval and Transfer Size Options
Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Mtftp6Impl.h"
EFI_MTFTP6_PROTOCOL gMtftp6ProtocolTemplate = {
EfiMtftp6GetModeData,
EfiMtftp6Configure,
EfiMtftp6GetInfo,
EfiMtftp6ParseOptions,
EfiMtftp6ReadFile,
EfiMtftp6WriteFile,
EfiMtftp6ReadDirectory,
EfiMtftp6Poll
};
/**
Returns the current operating mode data for the MTFTP6 instance.
The GetModeData() function returns the current operating mode and
cached data packet for the MTFTP6 instance.
@param[in] This Pointer to the EFI_MTFTP6_PROTOCOL instance.
@param[out] ModeData The buffer in which the EFI MTFTPv6 Protocol driver mode
data is returned.
@retval EFI_SUCCESS The configuration data was returned successfully.
@retval EFI_OUT_OF_RESOURCES The required mode data could not be allocated.
@retval EFI_INVALID_PARAMETER This is NULL or ModeData is NULL.
**/
EFI_STATUS
EFIAPI
EfiMtftp6GetModeData (
IN EFI_MTFTP6_PROTOCOL *This,
OUT EFI_MTFTP6_MODE_DATA *ModeData
)
{
MTFTP6_INSTANCE *Instance;
EFI_TPL OldTpl;
if ((This == NULL) || (ModeData == NULL)) {
return EFI_INVALID_PARAMETER;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
Instance = MTFTP6_INSTANCE_FROM_THIS (This);
//
// Copy back the configure data if the instance already configured.
//
if (Instance->Config != NULL) {
CopyMem (
&ModeData->ConfigData,
Instance->Config,
sizeof (EFI_MTFTP6_CONFIG_DATA)
);
} else {
ZeroMem (
&ModeData->ConfigData,
sizeof (EFI_MTFTP6_CONFIG_DATA)
);
}
//
// Set the current support options in mode data.
//
ModeData->SupportedOptionCount = MTFTP6_SUPPORTED_OPTIONS_NUM;
ModeData->SupportedOptions = (UINT8 **)mMtftp6SupportedOptions;
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Initializes, changes, or resets the default operational setting for
this EFI MTFTPv6 Protocol driver instance.
The Configure() function is used to set and change the configuration
data for this EFI MTFTPv6 Protocol driver instance. The configuration
data can be reset to startup defaults by calling Configure() with
MtftpConfigData set to NULL. Whenever the instance is reset, any
pending operation is aborted. By changing the EFI MTFTPv6 Protocol
driver instance configuration data, the client can connect to
different MTFTPv6 servers. The configuration parameters in
MtftpConfigData are used as the default parameters in later MTFTPv6
operations and can be overridden in later operations.
@param[in] This Pointer to the EFI_MTFTP6_PROTOCOL instance.
@param[in] MtftpConfigData Pointer to the configuration data structure.
@retval EFI_SUCCESS The EFI MTFTPv6 Protocol instance was configured successfully.
@retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:
- This is NULL.
- MtftpConfigData.StationIp is neither zero nor one
of the configured IP addresses in the underlying IPv6 driver.
- MtftpConfigData.ServerIp is not a valid IPv6 unicast address.
Note: It does not match the UEFI 2.3 Specification.
@retval EFI_ACCESS_DENIED - The configuration could not be changed at this time because there
is some MTFTP background operation in progress.
- MtftpConfigData.LocalPort is already in use.
Note: It does not match the UEFI 2.3 Specification.
@retval EFI_NO_MAPPING The underlying IPv6 driver was responsible for choosing a source
address for this instance, but no source address was available for use.
@retval EFI_OUT_OF_RESOURCES The EFI MTFTPv6 Protocol driver instance data could not be
allocated.
Note: It is not defined in the UEFI 2.3 Specification.
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The EFI
MTFTPv6 Protocol driver instance is not configured.
Note: It is not defined in the UEFI 2.3 Specification.
**/
EFI_STATUS
EFIAPI
EfiMtftp6Configure (
IN EFI_MTFTP6_PROTOCOL *This,
IN EFI_MTFTP6_CONFIG_DATA *MtftpConfigData OPTIONAL
)
{
MTFTP6_SERVICE *Service;
MTFTP6_INSTANCE *Instance;
EFI_UDP6_PROTOCOL *Udp6;
EFI_UDP6_CONFIG_DATA Udp6Cfg;
EFI_STATUS Status;
EFI_TPL OldTpl;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
if ((MtftpConfigData != NULL) && !NetIp6IsValidUnicast (&MtftpConfigData->ServerIp)) {
return EFI_INVALID_PARAMETER;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
Instance = MTFTP6_INSTANCE_FROM_THIS (This);
Service = Instance->Service;
Status = EFI_SUCCESS;
if (MtftpConfigData == NULL) {
//
// Configure the instance as NULL to abort the current session.
//
Mtftp6OperationClean (Instance, EFI_ABORTED);
FreePool (Instance->Config);
Instance->Config = NULL;
} else {
//
// It's not allowed to configure one instance twice without configure null.
//
if (Instance->Config != NULL) {
Status = EFI_ACCESS_DENIED;
goto ON_EXIT;
}
//
// Allocate the configure buffer of the instance and store the user's data.
//
Instance->Config = AllocateZeroPool (sizeof (EFI_MTFTP6_CONFIG_DATA));
if (Instance->Config == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
CopyMem (Instance->Config, MtftpConfigData, sizeof (EFI_MTFTP6_CONFIG_DATA));
//
// Don't configure the udpio here because each operation might override
// the configuration, so delay udpio configuration in each operation.
//
if (Instance->UdpIo == NULL) {
Instance->UdpIo = UdpIoCreateIo (
Service->Controller,
Service->Image,
Mtftp6ConfigDummyUdpIo,
UDP_IO_UDP6_VERSION,
NULL
);
if (Instance->UdpIo != NULL) {
Status = gBS->OpenProtocol (
Instance->UdpIo->UdpHandle,
&gEfiUdp6ProtocolGuid,
(VOID **)&Udp6,
Service->Image,
Instance->Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
}
}
if (Instance->UdpIo == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
//
// Continue to configure the downside Udp6 instance by user's data.
//
ZeroMem (&Udp6Cfg, sizeof (EFI_UDP6_CONFIG_DATA));
Udp6Cfg.AcceptPromiscuous = FALSE;
Udp6Cfg.AcceptAnyPort = FALSE;
Udp6Cfg.AllowDuplicatePort = FALSE;
Udp6Cfg.TrafficClass = 0;
Udp6Cfg.HopLimit = 128;
Udp6Cfg.ReceiveTimeout = 0;
Udp6Cfg.TransmitTimeout = 0;
Udp6Cfg.StationPort = Instance->Config->LocalPort;
Udp6Cfg.RemotePort = Instance->Config->InitialServerPort;
CopyMem (
&Udp6Cfg.StationAddress,
&Instance->Config->StationIp,
sizeof (EFI_IPv6_ADDRESS)
);
CopyMem (
&Udp6Cfg.RemoteAddress,
&Instance->Config->ServerIp,
sizeof (EFI_IPv6_ADDRESS)
);
Udp6 = Instance->UdpIo->Protocol.Udp6;
Status = Udp6->Configure (Udp6, &Udp6Cfg);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
}
ON_EXIT:
if (EFI_ERROR (Status)) {
if (Instance->Config != NULL) {
FreePool (Instance->Config);
Instance->Config = NULL;
}
if (Instance->UdpIo != NULL) {
UdpIoFreeIo (Instance->UdpIo);
Instance->UdpIo = NULL;
}
}
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Get the information of the download from the server.
The GetInfo() function assembles an MTFTPv6 request packet
with options, sends it to the MTFTPv6 server, and may return
an MTFTPv6 OACK, MTFTPv6 ERROR, or ICMP ERROR packet. Retries
occur only if no response packets are received from the MTFTPv6
server before the timeout expires.
@param[in] This Pointer to the EFI_MTFTP6_PROTOCOL instance.
@param[in] OverrideData Data that is used to override the existing parameters. If NULL, the
default parameters that were set in the EFI_MTFTP6_PROTOCOL.Configure()
function are used.
@param[in] Filename Pointer to null-terminated ASCII file name string.
@param[in] ModeStr Pointer to null-terminated ASCII mode string. If NULL, octet will be used.
@param[in] OptionCount Number of option/value string pairs in OptionList.
@param[in] OptionList Pointer to array of option/value string pairs. Ignored if
OptionCount is zero.
@param[out] PacketLength The number of bytes in the returned packet.
@param[out] Packet The pointer to the received packet. This buffer must be freed by
the caller.
@retval EFI_SUCCESS An MTFTPv6 OACK packet was received and is in the Packet.
Note: It does not match the UEFI 2.3 Specification.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
- This is NULL.
- Filename is NULL.
- OptionCount is not zero and OptionList is NULL.
- One or more options in OptionList have wrong format.
- PacketLength is NULL.
- OverrideData.ServerIp is not valid unicast IPv6 addresses.
@retval EFI_UNSUPPORTED One or more options in the OptionList are unsupported by
this implementation.
@retval EFI_NOT_STARTED The EFI MTFTPv6 Protocol driver has not been started.
@retval EFI_NO_MAPPING The underlying IPv6 driver was responsible for choosing a source
address for this instance, but no source address was available for use.
@retval EFI_ACCESS_DENIED The previous operation has not completed yet.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_TFTP_ERROR An MTFTPv6 ERROR packet was received and is in the Packet.
@retval EFI_NETWORK_UNREACHABLE An ICMP network unreachable error packet was received and the Packet is set to NULL.
Note: It is not defined in UEFI 2.3 Specification.
@retval EFI_HOST_UNREACHABLE An ICMP host unreachable error packet was received and the Packet is set to NULL.
Note: It is not defined in the UEFI 2.3 Specification.
@retval EFI_PROTOCOL_UNREACHABLE An ICMP protocol unreachable error packet was received and the Packet is set to NULL.
Note: It is not defined in the UEFI 2.3 Specification.
@retval EFI_PORT_UNREACHABLE An ICMP port unreachable error packet was received and the Packet is set to NULL.
@retval EFI_ICMP_ERROR Some other ICMP ERROR packet was received and the Packet is set to NULL.
Note: It does not match the UEFI 2.3 Specification.
@retval EFI_PROTOCOL_ERROR An unexpected MTFTPv6 packet was received and is in the Packet.
@retval EFI_TIMEOUT No responses were received from the MTFTPv6 server.
@retval EFI_DEVICE_ERROR An unexpected network error or system error occurred.
@retval EFI_NO_MEDIA There was a media error.
**/
EFI_STATUS
EFIAPI
EfiMtftp6GetInfo (
IN EFI_MTFTP6_PROTOCOL *This,
IN EFI_MTFTP6_OVERRIDE_DATA *OverrideData OPTIONAL,
IN UINT8 *Filename,
IN UINT8 *ModeStr OPTIONAL,
IN UINT8 OptionCount,
IN EFI_MTFTP6_OPTION *OptionList OPTIONAL,
OUT UINT32 *PacketLength,
OUT EFI_MTFTP6_PACKET **Packet OPTIONAL
)
{
EFI_STATUS Status;
EFI_MTFTP6_TOKEN Token;
MTFTP6_GETINFO_CONTEXT Context;
if ((This == NULL) ||
(Filename == NULL) ||
(PacketLength == NULL) ||
((OptionCount != 0) && (OptionList == NULL)) ||
((OverrideData != NULL) && !NetIp6IsValidUnicast (&OverrideData->ServerIp))
)
{
return EFI_INVALID_PARAMETER;
}
if (Packet != NULL) {
*Packet = NULL;
}
*PacketLength = 0;
Context.Packet = Packet;
Context.PacketLen = PacketLength;
Context.Status = EFI_SUCCESS;
//
// Fill fields of the Token for GetInfo operation.
//
Token.Status = EFI_SUCCESS;
Token.Event = NULL;
Token.OverrideData = OverrideData;
Token.Filename = Filename;
Token.ModeStr = ModeStr;
Token.OptionCount = OptionCount;
Token.OptionList = OptionList;
Token.BufferSize = 0;
Token.Buffer = NULL;
Token.Context = &Context;
Token.CheckPacket = Mtftp6CheckPacket;
Token.TimeoutCallback = NULL;
Token.PacketNeeded = NULL;
//
// Start the GetInfo operation by issue the Token.
//
Status = Mtftp6OperationStart (This, &Token, EFI_MTFTP6_OPCODE_RRQ);
if (Status == EFI_ABORTED) {
//
// Return the status if failed to issue.
//
return Context.Status;
}
return Status;
}
/**
Parse the options in an MTFTPv6 OACK packet.
The ParseOptions() function parses the option fields in an MTFTPv6 OACK
packet and returns the number of options that were found, and optionally,
a list of pointers to the options in the packet. If one or more of the
option fields are not valid, then EFI_PROTOCOL_ERROR is returned and
*OptionCount and *OptionList stop at the last valid option.
@param[in] This Pointer to the EFI_MTFTP6_PROTOCOL instance.
@param[in] PacketLen Length of the OACK packet to be parsed.
@param[in] Packet Pointer to the OACK packet to be parsed.
@param[out] OptionCount Pointer to the number of options in the following OptionList.
@param[out] OptionList Pointer to EFI_MTFTP6_OPTION storage. Each pointer in the
OptionList points to the corresponding MTFTP option buffer
in the Packet. Call the EFI Boot Service FreePool() to
release the OptionList if the options in this OptionList
are not needed anymore.
@retval EFI_SUCCESS The OACK packet was valid and the OptionCount and
OptionList parameters have been updated.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
- PacketLen is 0.
- Packet is NULL or Packet is not a valid MTFTPv6 packet.
- OptionCount is NULL.
@retval EFI_NOT_FOUND No options were found in the OACK packet.
@retval EFI_OUT_OF_RESOURCES Storage for the OptionList array can not be allocated.
@retval EFI_PROTOCOL_ERROR One or more of the option fields is invalid.
**/
EFI_STATUS
EFIAPI
EfiMtftp6ParseOptions (
IN EFI_MTFTP6_PROTOCOL *This,
IN UINT32 PacketLen,
IN EFI_MTFTP6_PACKET *Packet,
OUT UINT32 *OptionCount,
OUT EFI_MTFTP6_OPTION **OptionList OPTIONAL
)
{
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
return Mtftp6ParseStart (Packet, PacketLen, OptionCount, OptionList);
}
/**
Download a file from an MTFTPv6 server.
The ReadFile() function is used to initialize and start an MTFTPv6 download
process, and optionally, wait for completion. When the download operation
completes, whether successfully or not, the Token.Status field is updated
by the EFI MTFTPv6 Protocol driver, and then Token.Event is signaled if it
is not NULL.
Data can be downloaded from the MTFTPv6 server into either of the following
locations:
- A fixed buffer that is pointed to by Token.Buffer
- A download service function that is pointed to by Token.CheckPacket.
If both Token.Buffer and Token.CheckPacket are used, then Token.CheckPacket
will be called first. If the call is successful, the packet will be stored
in Token.Buffer.
@param[in] This Pointer to the EFI_MTFTP6_PROTOCOL instance.
@param[in] Token Pointer to the token structure to provide the parameters that are
used in this operation.
@retval EFI_SUCCESS The data file has been transferred successfully.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_BUFFER_TOO_SMALL BufferSize is not zero but not large enough to hold the
downloaded data in downloading process.
Note: It does not match the UEFI 2.3 Specification.
@retval EFI_ABORTED Current operation is aborted by user.
@retval EFI_NETWORK_UNREACHABLE An ICMP network unreachable error packet was received.
Note: It is not defined in the UEFI 2.3 Specification.
@retval EFI_HOST_UNREACHABLE An ICMP host unreachable error packet was received.
Note: It is not defined in the UEFI 2.3 Specification.
@retval EFI_PROTOCOL_UNREACHABLE An ICMP protocol unreachable error packet was received.
Note: It is not defined in the UEFI 2.3 Specification.
@retval EFI_PORT_UNREACHABLE An ICMP port unreachable error packet was received.
Note: It is not defined in the UEFI 2.3 Specification.
@retval EFI_ICMP_ERROR An ICMP ERROR packet was received.
@retval EFI_TIMEOUT No responses were received from the MTFTPv6 server.
@retval EFI_TFTP_ERROR An MTFTPv6 ERROR packet was received.
@retval EFI_DEVICE_ERROR An unexpected network error or system error occurred.
@retval EFI_NO_MEDIA There was a media error.
**/
EFI_STATUS
EFIAPI
EfiMtftp6ReadFile (
IN EFI_MTFTP6_PROTOCOL *This,
IN EFI_MTFTP6_TOKEN *Token
)
{
return Mtftp6OperationStart (This, Token, EFI_MTFTP6_OPCODE_RRQ);
}
/**
Send a file to an MTFTPv6 server.
The WriteFile() function is used to initialize an uploading operation
with the given option list and optionally wait for completion. If one
or more of the options is not supported by the server, the unsupported
options are ignored and a standard TFTP process starts instead. When
the upload process completes, whether successfully or not, Token.Event
is signaled, and the EFI MTFTPv6 Protocol driver updates Token.Status.
The caller can supply the data to be uploaded in the following two modes:
- Through the user-provided buffer
- Through a callback function
With the user-provided buffer, the Token.BufferSize field indicates
the length of the buffer, and the driver will upload the data in the
buffer. With an EFI_MTFTP6_PACKET_NEEDED callback function, the driver
will call this callback function to get more data from the user to upload.
@param[in] This Pointer to the EFI_MTFTP6_PROTOCOL instance.
@param[in] Token Pointer to the token structure to provide the parameters that are
used in this operation.
@retval EFI_SUCCESS The upload session has started.
@retval EFI_UNSUPPORTED The operation is not supported by this implementation.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
- This is NULL.
- Token is NULL.
- Token.Filename is NULL.
- Token.OptionCount is not zero and Token.OptionList is NULL.
- One or more options in Token.OptionList have wrong format.
- Token.Buffer and Token.PacketNeeded are both NULL.
- Token.OverrideData.ServerIp is not a valid unicast IPv6 address.
@retval EFI_UNSUPPORTED One or more options in the Token.OptionList are not
supported by this implementation.
@retval EFI_NOT_STARTED The EFI MTFTPv6 Protocol driver has not been started.
@retval EFI_NO_MAPPING The underlying IPv6 driver was responsible for choosing a source
address for this instance, but no source address was available for use.
@retval EFI_ALREADY_STARTED This Token is already being used in another MTFTPv6 session.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_ACCESS_DENIED The previous operation has not completed yet.
@retval EFI_DEVICE_ERROR An unexpected network error or system error occurred.
**/
EFI_STATUS
EFIAPI
EfiMtftp6WriteFile (
IN EFI_MTFTP6_PROTOCOL *This,
IN EFI_MTFTP6_TOKEN *Token
)
{
return Mtftp6OperationStart (This, Token, EFI_MTFTP6_OPCODE_WRQ);
}
/**
Download a data file directory from an MTFTPv6 server.
The ReadDirectory() function is used to return a list of files on the
MTFTPv6 server that are logically (or operationally) related to
Token.Filename. The directory request packet that is sent to the server
is built with the option list that was provided by the caller, if present.
The file information that the server returns is put into either of
the following locations:
- A fixed buffer that is pointed to by Token.Buffer.
- A download service function that is pointed to by Token.CheckPacket.
If both Token.Buffer and Token.CheckPacket are used, then Token.CheckPacket
will be called first. If the call is successful, the packet will be stored
in Token.Buffer.
@param[in] This Pointer to the EFI_MTFTP6_PROTOCOL instance.
@param[in] Token Pointer to the token structure to provide the parameters that are
used in this operation.
@retval EFI_SUCCESS The MTFTPv6 related file "directory" has been downloaded.
@retval EFI_UNSUPPORTED The EFI MTFTPv6 Protocol driver does not support this function.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
- This is NULL.
- Token is NULL.
- Token.Filename is NULL.
- Token.OptionCount is not zero and Token.OptionList is NULL.
- One or more options in Token.OptionList have wrong format.
- Token.Buffer and Token.CheckPacket are both NULL.
- Token.OverrideData.ServerIp is not valid unicast IPv6 addresses.
@retval EFI_UNSUPPORTED One or more options in the Token.OptionList are not
supported by this implementation.
@retval EFI_NOT_STARTED The EFI MTFTPv6 Protocol driver has not been started.
@retval EFI_NO_MAPPING The underlying IPv6 driver was responsible for choosing a source
address for this instance, but no source address was available for use.
@retval EFI_ALREADY_STARTED This Token is already being used in another MTFTPv6 session.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_ACCESS_DENIED The previous operation has not completed yet.
@retval EFI_DEVICE_ERROR An unexpected network error or system error occurred.
**/
EFI_STATUS
EFIAPI
EfiMtftp6ReadDirectory (
IN EFI_MTFTP6_PROTOCOL *This,
IN EFI_MTFTP6_TOKEN *Token
)
{
return Mtftp6OperationStart (This, Token, EFI_MTFTP6_OPCODE_DIR);
}
/**
Polls for incoming data packets and processes outgoing data packets.
The Poll() function can be used by network drivers and applications
to increase the rate that data packets are moved between the
communications device and the transmit and receive queues. In some
systems, the periodic timer event in the managed network driver may
not poll the underlying communications device fast enough to transmit
and/or receive all data packets without missing incoming packets or
dropping outgoing packets. Drivers and applications that are
experiencing packet loss should try calling the Poll() function
more often.
@param[in] This The MTFTP6 protocol instance.
@retval EFI_SUCCESS Incoming or outgoing data was processed.
@retval EFI_NOT_STARTED This EFI MTFTPv6 Protocol instance has not been started.
@retval EFI_INVALID_PARAMETER This is NULL.
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
@retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive queue.
Consider increasing the polling rate.
**/
EFI_STATUS
EFIAPI
EfiMtftp6Poll (
IN EFI_MTFTP6_PROTOCOL *This
)
{
MTFTP6_INSTANCE *Instance;
EFI_UDP6_PROTOCOL *Udp6;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Instance = MTFTP6_INSTANCE_FROM_THIS (This);
//
// Check the instance whether configured or in destroy.
//
if (Instance->Config == NULL) {
return EFI_NOT_STARTED;
}
Udp6 = Instance->UdpIo->Protocol.Udp6;
return Udp6->Poll (Udp6);
}
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