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MdeModulePke/Mtftp4Dxe: Support windowsize in read request operation.

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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.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Shao Ming <ming.shao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
This commit is contained in:
Jiaxin Wu
2018-09-14 15:47:20 +08:00
parent 6a147d6dae
commit 6c047cfab1
8 changed files with 89 additions and 37 deletions
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8
MdeModulePkg/Universal/Network/Mtftp4Dxe/Mtftp4Option.h
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@@ -16,7 +16,7 @@ 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
@@ -26,9 +26,11 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#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;
@@ -71,6 +73,7 @@ Mtftp4ExtractOptions (
@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
@@ -83,6 +86,7 @@ Mtftp4ParseOption (
IN EFI_MTFTP4_OPTION *Options,
IN UINT32 Count,
IN BOOLEAN Request,
IN UINT16 Operation,
OUT MTFTP4_OPTION *MtftpOption
);
@@ -92,6 +96,7 @@ Mtftp4ParseOption (
@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
@@ -103,6 +108,7 @@ EFI_STATUS
Mtftp4ParseOptionOack (
IN EFI_MTFTP4_PACKET *Packet,
IN UINT32 PacketLen,
IN UINT16 Operation,
OUT MTFTP4_OPTION *MtftpOption
);