Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=886
This patch is to support the TFTP windowsize option described in RFC 7440.
The feature allows the client and server to negotiate a window size of
consecutive blocks to send as an alternative for replacing the single-block
lockstep schema.
Currently, the windowsize for write request operation is not supported since
there is no real use cases.
Cc: Ye Ting <ting...@intel.com>
Cc: Fu Siyuan <siyuan...@intel.com>
Cc: Shao Ming <ming.s...@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Wu Jiaxin <jiaxin...@intel.com>
---
.../Universal/Network/Mtftp4Dxe/Mtftp4Impl.c | 5 ++
.../Universal/Network/Mtftp4Dxe/Mtftp4Impl.h | 10 ++++
.../Network/Mtftp4Dxe/Mtftp4Option.c | 25 ++++++++-
.../Network/Mtftp4Dxe/Mtftp4Option.h | 8 ++-
.../Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c | 55 +++++++++++++------
.../Network/Mtftp4Dxe/Mtftp4Support.c | 8 +--
.../Network/Mtftp4Dxe/Mtftp4Support.h | 13 -----
.../Universal/Network/Mtftp4Dxe/Mtftp4Wrq.c | 2 +-
8 files changed, 89 insertions(+), 37 deletions(-)
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.c
b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.c
index 03903640b8..f442e6d7ac 100644
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.c
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.c
@@ -78,10 +78,13 @@ Mtftp4CleanOperation (
ZeroMem (&Instance->RequestOption, sizeof (MTFTP4_OPTION));
Instance->Operation = 0;
Instance->BlkSize = MTFTP4_DEFAULT_BLKSIZE;
+ Instance->WindowSize = 1;
+ Instance->TotalBlock = 0;
+ Instance->AckedBlock = 0;
Instance->LastBlock = 0;
Instance->ServerIp = 0;
Instance->ListeningPort = 0;
Instance->ConnectedPort = 0;
Instance->Gateway = 0;
@@ -426,10 +429,11 @@ Mtftp4Start (
if (Token->OptionCount != 0) {
Status = Mtftp4ParseOption (
Token->OptionList,
Token->OptionCount,
TRUE,
+ Instance->Operation,
&Instance->RequestOption
);
if (EFI_ERROR (Status)) {
TokenStatus = EFI_DEVICE_ERROR;
@@ -441,10 +445,11 @@ Mtftp4Start (
// Set the operation parameters from the configuration or override data.
//
Config = &Instance->Config;
Instance->Token = Token;
Instance->BlkSize = MTFTP4_DEFAULT_BLKSIZE;
+ Instance->WindowSize = MTFTP4_DEFAULT_WINDOWSIZE;
CopyMem (&Instance->ServerIp, &Config->ServerIp, sizeof (IP4_ADDR));
Instance->ServerIp = NTOHL (Instance->ServerIp);
Instance->ListeningPort = Config->InitialServerPort;
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.h
b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.h
index e24890cce8..de304f4e70 100644
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.h
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Impl.h
@@ -6,10 +6,11 @@
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
+ RFC7440 - TFTP Windowsize Option
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -54,10 +55,11 @@ typedef struct _MTFTP4_PROTOCOL MTFTP4_PROTOCOL;
#define MTFTP4_DEFAULT_SERVER_PORT 69
#define MTFTP4_DEFAULT_TIMEOUT 3
#define MTFTP4_DEFAULT_RETRY 5
#define MTFTP4_DEFAULT_BLKSIZE 512
+#define MTFTP4_DEFAULT_WINDOWSIZE 1
#define MTFTP4_TIME_TO_GETMAP 5
#define MTFTP4_STATE_UNCONFIGED 0
#define MTFTP4_STATE_CONFIGED 1
#define MTFTP4_STATE_DESTROY 2
@@ -119,10 +121,18 @@ struct _MTFTP4_PROTOCOL {
//
UINT16 BlkSize;
UINT16 LastBlock;
LIST_ENTRY Blocks;
+ UINT16 WindowSize;
+
+ //
+ // Record the total received block number and the already acked block number.
+ //
+ UINT64 TotalBlock;
+ UINT64 AckedBlock;
+
//
// The server's communication end point: IP and two ports. one for
// initial request, one for its selected port.
//
IP4_ADDR ServerIp;
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Option.c
b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Option.c
index e40561a96b..2f77635268 100644
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Option.c
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Option.c
@@ -1,9 +1,9 @@
/** @file
Routines to process MTFTP4 options.
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
http://opensource.org/licenses/bsd-license.php<BR>
@@ -14,10 +14,11 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER
EXPRESS OR IMPLIED.
#include "Mtftp4Impl.h"
CHAR8 *mMtftp4SupportedOptions[MTFTP4_SUPPORTED_OPTIONS] = {
"blksize",
+ "windowsize",
"timeout",
"tsize",
"multicast"
};
@@ -398,10 +399,11 @@ Mtftp4ExtractMcast (
@param Options The option array, which contains addresses of
each
option's name/value string.
@param Count The number of options in the Options
@param Request Whether this is a request or OACK. The format
of
multicast is different according to this
setting.
+ @param Operation The current performed operation.
@param MtftpOption The MTFTP4_OPTION for easy access.
@retval EFI_INVALID_PARAMETER The option is mal-formated
@retval EFI_UNSUPPORTED Some option isn't supported
@retval EFI_SUCCESS The option are OK and has been parsed.
@@ -410,10 +412,11 @@ Mtftp4ExtractMcast (
EFI_STATUS
Mtftp4ParseOption (
IN EFI_MTFTP4_OPTION *Options,
IN UINT32 Count,
IN BOOLEAN Request,
+ IN UINT16 Operation,
OUT MTFTP4_OPTION *MtftpOption
)
{
EFI_STATUS Status;
UINT32 Index;
@@ -479,10 +482,26 @@ Mtftp4ParseOption (
}
}
MtftpOption->Exist |= MTFTP4_MCAST_EXIST;
+ } else if (NetStringEqualNoCase (This->OptionStr, (UINT8 *) "windowsize"))
{
+ if (Operation == EFI_MTFTP4_OPCODE_WRQ) {
+ //
+ // Currently, windowsize is not supported in the write operation.
+ //
+ return EFI_UNSUPPORTED;
+ }
+
+ Value = NetStringToU32 (This->ValueStr);
+
+ if (Value < 1) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ MtftpOption->WindowSize = (UINT16) Value;
+ MtftpOption->Exist |= MTFTP4_WINDOWSIZE_EXIST;
} else if (Request) {
//
// Ignore the unsupported option if it is a reply, and return
// EFI_UNSUPPORTED if it's a request according to the UEFI spec.
//
@@ -498,10 +517,11 @@ Mtftp4ParseOption (
Parse the options in the OACK packet to MTFTP4_OPTION which program
can access directly.
@param Packet The OACK packet to parse
@param PacketLen The length of the packet
+ @param Operation The current performed operation.
@param MtftpOption The MTFTP_OPTION for easy access.
@retval EFI_INVALID_PARAMETER The packet option is mal-formated
@retval EFI_UNSUPPORTED Some option isn't supported
@retval EFI_SUCCESS The option are OK and has been parsed.
@@ -509,10 +529,11 @@ Mtftp4ParseOption (
**/
EFI_STATUS
Mtftp4ParseOptionOack (
IN EFI_MTFTP4_PACKET *Packet,
IN UINT32 PacketLen,
+ IN UINT16 Operation,
OUT MTFTP4_OPTION *MtftpOption
)
{
EFI_MTFTP4_OPTION *OptionList;
EFI_STATUS Status;
@@ -525,10 +546,10 @@ Mtftp4ParseOptionOack (
if (EFI_ERROR (Status) || (Count == 0)) {
return Status;
}
ASSERT (OptionList != NULL);
- Status = Mtftp4ParseOption (OptionList, Count, FALSE, MtftpOption);
+ Status = Mtftp4ParseOption (OptionList, Count, FALSE, Operation,
MtftpOption);
FreePool (OptionList);
return Status;
}
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Option.h
b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Option.h
index a3fdc4dca2..cb1f987b93 100644
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Option.h
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Option.h
@@ -14,23 +14,25 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER
EXPRESS OR IMPLIED.
#ifndef __EFI_MTFTP4_OPTION_H__
#define __EFI_MTFTP4_OPTION_H__
-#define MTFTP4_SUPPORTED_OPTIONS 4
+#define MTFTP4_SUPPORTED_OPTIONS 5
#define MTFTP4_OPCODE_LEN 2
#define MTFTP4_ERRCODE_LEN 2
#define MTFTP4_BLKNO_LEN 2
#define MTFTP4_DATA_HEAD_LEN 4
#define MTFTP4_BLKSIZE_EXIST 0x01
#define MTFTP4_TIMEOUT_EXIST 0x02
#define MTFTP4_TSIZE_EXIST 0x04
#define MTFTP4_MCAST_EXIST 0x08
+#define MTFTP4_WINDOWSIZE_EXIST 0x10
typedef struct {
UINT16 BlkSize;
+ UINT16 WindowSize;
UINT8 Timeout;
UINT32 Tsize;
IP4_ADDR McastIp;
UINT16 McastPort;
BOOLEAN Master;
@@ -69,10 +71,11 @@ Mtftp4ExtractOptions (
@param Options The option array, which contains addresses of
each
option's name/value string.
@param Count The number of options in the Options
@param Request Whether this is a request or OACK. The format
of
multicast is different according to this
setting.
+ @param Operation The current performed operation.
@param MtftpOption The MTFTP4_OPTION for easy access.
@retval EFI_INVALID_PARAMETER The option is mal-formated
@retval EFI_UNSUPPORTED Some option isn't supported
@retval EFI_SUCCESS The option are OK and has been parsed.
@@ -81,19 +84,21 @@ Mtftp4ExtractOptions (
EFI_STATUS
Mtftp4ParseOption (
IN EFI_MTFTP4_OPTION *Options,
IN UINT32 Count,
IN BOOLEAN Request,
+ IN UINT16 Operation,
OUT MTFTP4_OPTION *MtftpOption
);
/**
Parse the options in the OACK packet to MTFTP4_OPTION which program
can access directly.
@param Packet The OACK packet to parse
@param PacketLen The length of the packet
+ @param Operation The current performed operation.
@param MtftpOption The MTFTP_OPTION for easy access.
@retval EFI_INVALID_PARAMETER The packet option is mal-formated
@retval EFI_UNSUPPORTED Some option isn't supported
@retval EFI_SUCCESS The option are OK and has been parsed.
@@ -101,10 +106,11 @@ Mtftp4ParseOption (
**/
EFI_STATUS
Mtftp4ParseOptionOack (
IN EFI_MTFTP4_PACKET *Packet,
IN UINT32 PacketLen,
+ IN UINT16 Operation,
OUT MTFTP4_OPTION *MtftpOption
);
extern CHAR8 *mMtftp4SupportedOptions[MTFTP4_SUPPORTED_OPTIONS];
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c
b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c
index 63115ba519..fedf1cde46 100644
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Rrq.c
@@ -97,10 +97,13 @@ Mtftp4RrqSendAck (
IN UINT16 BlkNo
)
{
EFI_MTFTP4_PACKET *Ack;
NET_BUF *Packet;
+ EFI_STATUS Status;
+
+ Status = EFI_SUCCESS;
Packet = NetbufAlloc (sizeof (EFI_MTFTP4_ACK_HEADER));
if (Packet == NULL) {
return EFI_OUT_OF_RESOURCES;
}
@@ -113,11 +116,16 @@ Mtftp4RrqSendAck (
ASSERT (Ack != NULL);
Ack->Ack.OpCode = HTONS (EFI_MTFTP4_OPCODE_ACK);
Ack->Ack.Block[0] = HTONS (BlkNo);
- return Mtftp4SendPacket (Instance, Packet);
+ Status = Mtftp4SendPacket (Instance, Packet);
+ if (!EFI_ERROR (Status)) {
+ Instance->AckedBlock = Instance->TotalBlock;
+ }
+
+ return Status;
}
/**
Deliver the received data block to the user, which can be saved
@@ -144,11 +152,10 @@ Mtftp4RrqSaveBlock (
EFI_MTFTP4_TOKEN *Token;
EFI_STATUS Status;
UINT16 Block;
UINT64 Start;
UINT32 DataLen;
- UINT64 TotalBlock;
BOOLEAN Completed;
Completed = FALSE;
Token = Instance->Token;
Block = NTOHS (Packet->Data.Block);
@@ -156,11 +163,11 @@ Mtftp4RrqSaveBlock (
//
// This is the last block, save the block no
//
if (DataLen < Instance->BlkSize) {
- Completed = TRUE;
+ Completed = TRUE;
Instance->LastBlock = Block;
Mtftp4SetLastBlockNum (&Instance->Blocks, Block);
}
//
@@ -168,11 +175,11 @@ Mtftp4RrqSaveBlock (
// returns EFI_NOT_FOUND, the block has been saved, don't save it again.
// Note that : For bigger files, allowing the block counter to roll over
// to accept transfers of unlimited size. So TotalBlock is memorised as
// continuous block counter.
//
- Status = Mtftp4RemoveBlockNum (&Instance->Blocks, Block, Completed,
&TotalBlock);
+ Status = Mtftp4RemoveBlockNum (&Instance->Blocks, Block, Completed,
&Instance->TotalBlock);
if (Status == EFI_NOT_FOUND) {
return EFI_SUCCESS;
} else if (EFI_ERROR (Status)) {
return Status;
@@ -191,11 +198,11 @@ Mtftp4RrqSaveBlock (
return EFI_ABORTED;
}
}
if (Token->Buffer != NULL) {
- Start = MultU64x32 (TotalBlock - 1, Instance->BlkSize);
+ Start = MultU64x32 (Instance->TotalBlock - 1, Instance->BlkSize);
if (Start + DataLen <= Token->BufferSize) {
CopyMem ((UINT8 *) Token->Buffer + Start, Packet->Data.Data, DataLen);
//
@@ -255,23 +262,26 @@ Mtftp4RrqHandleData (
EFI_STATUS Status;
UINT16 BlockNum;
INTN Expected;
*Completed = FALSE;
+ Status = EFI_SUCCESS;
BlockNum = NTOHS (Packet->Data.Block);
Expected = Mtftp4GetNextBlockNum (&Instance->Blocks);
ASSERT (Expected >= 0);
//
- // If we are active and received an unexpected packet, retransmit
- // the last ACK then restart receiving. If we are passive, save
- // the block.
+ // If we are active and received an unexpected packet, transmit
+ // the ACK for the block we received, then restart receiving the
+ // expected one. If we are passive, save the block.
//
if (Instance->Master && (Expected != BlockNum)) {
- Mtftp4Retransmit (Instance);
- return EFI_SUCCESS;
+ //
+ // If Expected is 0, (UINT16) (Expected - 1) is also the expected Ack
number (65535).
+ //
+ return Mtftp4RrqSendAck (Instance, (UINT16) (Expected - 1));
}
Status = Mtftp4RrqSaveBlock (Instance, Packet, Len);
if (EFI_ERROR (Status)) {
@@ -307,14 +317,17 @@ Mtftp4RrqHandleData (
} else {
BlockNum = (UINT16) (Expected - 1);
}
- Mtftp4RrqSendAck (Instance, BlockNum);
+ if (Instance->WindowSize == (Instance->TotalBlock - Instance->AckedBlock)
|| Expected < 0) {
+ Status = Mtftp4RrqSendAck (Instance, BlockNum);
+ }
+
}
- return EFI_SUCCESS;
+ return Status;
}
/**
Validate whether the options received in the server's OACK packet is valid.
@@ -347,15 +360,17 @@ Mtftp4RrqOackValid (
if ((Reply->Exist &~Request->Exist) != 0) {
return FALSE;
}
//
- // Server can only specify a smaller block size to be used and
+ // Server can only specify a smaller block size and window size to be used
and
// return the timeout matches that requested.
//
if ((((Reply->Exist & MTFTP4_BLKSIZE_EXIST) != 0)&& (Reply->BlkSize >
Request->BlkSize)) ||
- (((Reply->Exist & MTFTP4_TIMEOUT_EXIST) != 0) && (Reply->Timeout !=
Request->Timeout))) {
+ (((Reply->Exist & MTFTP4_WINDOWSIZE_EXIST) != 0)&& (Reply->WindowSize >
Request->WindowSize)) ||
+ (((Reply->Exist & MTFTP4_TIMEOUT_EXIST) != 0) && (Reply->Timeout !=
Request->Timeout))
+ ) {
return FALSE;
}
//
// The server can send ",,master" to client to change its master
@@ -505,11 +520,11 @@ Mtftp4RrqHandleOack (
//
// Parse and validate the options from server
//
ZeroMem (&Reply, sizeof (MTFTP4_OPTION));
- Status = Mtftp4ParseOptionOack (Packet, Len, &Reply);
+ Status = Mtftp4ParseOptionOack (Packet, Len, Instance->Operation, &Reply);
if (EFI_ERROR (Status) ||
!Mtftp4RrqOackValid (Instance, &Reply, &Instance->RequestOption)) {
//
// Don't send an ERROR packet if the error is EFI_OUT_OF_RESOURCES.
@@ -527,11 +542,11 @@ Mtftp4RrqHandleOack (
if ((Reply.Exist & MTFTP4_MCAST_EXIST) != 0) {
//
// Save the multicast info. Always update the Master, only update the
- // multicast IP address, block size, timeoute at the first time. If IP
+ // multicast IP address, block size, window size, timeoute at the first
time. If IP
// address is updated, create a UDP child to receive the multicast.
//
Instance->Master = Reply.Master;
if (Instance->McastIp == 0) {
@@ -597,10 +612,14 @@ Mtftp4RrqHandleOack (
//
if (Reply.BlkSize != 0) {
Instance->BlkSize = Reply.BlkSize;
}
+ if (Reply.WindowSize != 0) {
+ Instance->WindowSize = Reply.WindowSize;
+ }
+
if (Reply.Timeout != 0) {
Instance->Timeout = Reply.Timeout;
}
}
@@ -609,10 +628,14 @@ Mtftp4RrqHandleOack (
if (Reply.BlkSize != 0) {
Instance->BlkSize = Reply.BlkSize;
}
+ if (Reply.WindowSize != 0) {
+ Instance->WindowSize = Reply.WindowSize;
+ }
+
if (Reply.Timeout != 0) {
Instance->Timeout = Reply.Timeout;
}
}
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Support.c
b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Support.c
index 71c679ed13..71fd979b3a 100644
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Support.c
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Support.c
@@ -218,19 +218,19 @@ Mtftp4RemoveBlockNum (
// transfers of unlimited size. There is no consensus, however, whether
// the counter should wrap around to zero or to one. Many implementations
// wrap to zero, because this is the simplest to implement. Here we
choose
// this solution.
//
- *TotalBlock = Num;
+ *TotalBlock = Num;
if (Range->Round > 0) {
- *TotalBlock += Range->Bound + MultU64x32 ((UINTN) (Range->Round -1),
(UINT32) (Range->Bound + 1)) + 1;
- }
+ *TotalBlock += Range->Bound + MultU64x32 ((UINTN) (Range->Round -1),
(UINT32) (Range->Bound + 1)) + 1;
+ }
if (Range->Start > Range->Bound) {
Range->Start = 0;
- Range->Round ++;
+ Range->Round ++;
}
if ((Range->Start > Range->End) || Completed) {
RemoveEntryList (&Range->Link);
FreePool (Range);
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Support.h
b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Support.h
index df18440a9e..6cc2756bc8 100644
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Support.h
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Support.h
@@ -171,23 +171,10 @@ Mtftp4SendError (
IN MTFTP4_PROTOCOL *Instance,
IN UINT16 ErrCode,
IN UINT8 *ErrInfo
);
-/**
- Retransmit the last packet for the instance.
-
- @param Instance The Mtftp instance
-
- @retval EFI_SUCCESS The last packet is retransmitted.
- @retval Others Failed to retransmit.
-
-**/
-EFI_STATUS
-Mtftp4Retransmit (
- IN MTFTP4_PROTOCOL *Instance
- );
/**
The timer ticking function in TPL_NOTIFY level for the Mtftp service
instance.
@param Event The ticking event
diff --git a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Wrq.c
b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Wrq.c
index cf1d50fe40..ea309e2d6b 100644
--- a/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Wrq.c
+++ b/MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Wrq.c
@@ -284,11 +284,11 @@ Mtftp4WrqHandleOack (
//
// Parse and validate the options from server
//
ZeroMem (&Reply, sizeof (MTFTP4_OPTION));
- Status = Mtftp4ParseOptionOack (Packet, Len, &Reply);
+ Status = Mtftp4ParseOptionOack (Packet, Len, Instance->Operation, &Reply);
if (EFI_ERROR (Status) || !Mtftp4WrqOackValid (&Reply,
&Instance->RequestOption)) {
//
// Don't send a MTFTP error packet when out of resource, it can
// only make it worse.
--
2.17.1.windows.2
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel
