From: "Ni, Ray" <ray.ni@intel.com>
To: Nickle Wang <nickle.wang@hpe.com>,
"devel@edk2.groups.io" <devel@edk2.groups.io>
Cc: Derek Lin <derek.lin2@hpe.com>
Subject: Re: [PATCH v2] EmulatorPkg/WinHost: Enable network support.
Date: Thu, 4 Jun 2020 08:08:27 +0000 [thread overview]
Message-ID: <734D49CCEBEEF84792F5B80ED585239D5C59F91F@SHSMSX104.ccr.corp.intel.com> (raw)
In-Reply-To: <20200409032038.9500-1-nickle.wang@hpe.com>
Acked-by: Ray Ni <ray.ni@intel.com>
> -----Original Message-----
> From: Nickle Wang <nickle.wang@hpe.com>
> Sent: Thursday, April 9, 2020 11:21 AM
> To: devel@edk2.groups.io; nickle.wang@hpe.com
> Cc: Ni, Ray <ray.ni@intel.com>; Derek Lin <derek.lin2@hpe.com>
> Subject: [PATCH v2] EmulatorPkg/WinHost: Enable network support.
>
> Follow the implementation from Unix host to implement SNP
> EMU_IO_THUNK_PROTOCOL and EMU_SNP_PROTOCOL. The network IO
> driver is the
> same one as Nt32. Please refer to NETWORK-IO Subproject for network Io
> driver(SnpNt32Io.dll).
>
> Signed-off-by: Nickle Wang <nickle.wang@hpe.com>
> Signed-off-by: Derek Lin <derek.lin2@hpe.com>
> ---
> EmulatorPkg/EmulatorPkg.dec | 8 +
> EmulatorPkg/Win/Host/WinHost.c | 3 +-
> EmulatorPkg/Win/Host/WinHost.h | 5 +
> EmulatorPkg/Win/Host/WinHost.inf | 5 +
> EmulatorPkg/Win/Host/WinPacketFilter.c | 1135 ++++++++++++++++++++++++
> 5 files changed, 1155 insertions(+), 1 deletion(-)
> create mode 100644 EmulatorPkg/Win/Host/WinPacketFilter.c
>
> diff --git a/EmulatorPkg/EmulatorPkg.dec b/EmulatorPkg/EmulatorPkg.dec
> index 99250d9fe5..2a09744ea1 100644
> --- a/EmulatorPkg/EmulatorPkg.dec
> +++ b/EmulatorPkg/EmulatorPkg.dec
> @@ -4,6 +4,7 @@
> #
> # Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>
> # Portions copyright (c) 2011, Apple Inc. All rights reserved.
> +# (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
> #
> # SPDX-License-Identifier: BSD-2-Clause-Patent
> #
> @@ -94,6 +95,13 @@
> gEmulatorPkgTokenSpaceGuid.PcdEmuGop|L"GOP
> Window"|VOID*|0x00001018
> gEmulatorPkgTokenSpaceGuid.PcdEmuFileSystem|L"."|VOID*|0x00001004
>
> gEmulatorPkgTokenSpaceGuid.PcdEmuSerialPort|L"/dev/ttyS0"|VOID*|0x0000
> 1002
> +
> + #
> + # On Unix host, this is the network interface name on host system that will
> + # be used in UEFI.
> + # On Win host, this is the network interface index number on Windows that
> + # will be used in UEFI. For example, string L"0" is the first network
> + # interface.
>
> gEmulatorPkgTokenSpaceGuid.PcdEmuNetworkInterface|L"en0"|VOID*|0x000
> 0100d
>
> gEmulatorPkgTokenSpaceGuid.PcdEmuCpuModel|L"Intel(R) Processor
> Model"|VOID*|0x00001007
> diff --git a/EmulatorPkg/Win/Host/WinHost.c
> b/EmulatorPkg/Win/Host/WinHost.c
> index cfee156b27..0838c56dde 100644
> --- a/EmulatorPkg/Win/Host/WinHost.c
> +++ b/EmulatorPkg/Win/Host/WinHost.c
> @@ -9,7 +9,7 @@
> allocate memory space with ReadWrite and Execute attribute.
>
> Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> -(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
> +(C) Copyright 2016-2020 Hewlett Packard Enterprise Development LP<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
> **/
>
> @@ -443,6 +443,7 @@ Returns:
> AddThunkProtocol (&mWinNtWndThunkIo, (CHAR16 *)PcdGetPtr
> (PcdEmuGop), TRUE);
> AddThunkProtocol (&mWinNtFileSystemThunkIo, (CHAR16 *)PcdGetPtr
> (PcdEmuFileSystem), TRUE);
> AddThunkProtocol (&mWinNtBlockIoThunkIo, (CHAR16 *)PcdGetPtr
> (PcdEmuVirtualDisk), TRUE);
> + AddThunkProtocol (&mWinNtSnpThunkIo, (CHAR16 *)PcdGetPtr
> (PcdEmuNetworkInterface), TRUE);
>
> //
> // Allocate space for gSystemMemory Array
> diff --git a/EmulatorPkg/Win/Host/WinHost.h
> b/EmulatorPkg/Win/Host/WinHost.h
> index 0e52c003fc..b36fea254e 100644
> --- a/EmulatorPkg/Win/Host/WinHost.h
> +++ b/EmulatorPkg/Win/Host/WinHost.h
> @@ -1,6 +1,7 @@
> /**@file
>
> Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> +(C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
>
> @@ -29,6 +30,7 @@ Abstract:
>
> #include <Protocol/EmuBlockIo.h>
> #include <Protocol/BlockIo.h>
> +#include <Protocol/EmuSnp.h>
>
> #include <Library/BaseLib.h>
> #include <Library/PeCoffLib.h>
> @@ -41,6 +43,7 @@ Abstract:
> #include <Library/BaseMemoryLib.h>
> #include <Library/PeiServicesLib.h>
> #include <Library/PeCoffExtraActionLib.h>
> +#include <Library/NetLib.h>
>
>
> #define TEMPORARY_RAM_SIZE 0x20000
> @@ -200,4 +203,6 @@ extern EMU_THUNK_PROTOCOL gEmuThunkProtocol;
> extern EMU_IO_THUNK_PROTOCOL mWinNtWndThunkIo;
> extern EMU_IO_THUNK_PROTOCOL mWinNtFileSystemThunkIo;
> extern EMU_IO_THUNK_PROTOCOL mWinNtBlockIoThunkIo;
> +extern EMU_IO_THUNK_PROTOCOL mWinNtSnpThunkIo;
> +
> #endif
> diff --git a/EmulatorPkg/Win/Host/WinHost.inf
> b/EmulatorPkg/Win/Host/WinHost.inf
> index e0b3ecb15b..a283a9a6fc 100644
> --- a/EmulatorPkg/Win/Host/WinHost.inf
> +++ b/EmulatorPkg/Win/Host/WinHost.inf
> @@ -4,6 +4,7 @@
> # Main executable file of Win Emulator that loads Sec core after initialization
> finished.
> # Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>
> # Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
> +# (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
> #
> # SPDX-License-Identifier: BSD-2-Clause-Patent
> #
> @@ -33,11 +34,13 @@
> WinThunk.c
> WinHost.h
> WinHost.c
> + WinPacketFilter.c
> WinInclude.h
>
> [Packages]
> MdePkg/MdePkg.dec
> MdeModulePkg/MdeModulePkg.dec
> + NetworkPkg/NetworkPkg.dec
> EmulatorPkg/EmulatorPkg.dec
>
> [LibraryClasses]
> @@ -61,6 +64,7 @@
> gEmuGraphicsWindowProtocolGuid
> gEmuBlockIoProtocolGuid
> gEfiSimpleFileSystemProtocolGuid
> + gEmuSnpProtocolGuid
>
> [Guids]
> gEfiFileSystemVolumeLabelInfoIdGuid # SOMETIMES_CONSUMED
> @@ -78,6 +82,7 @@
> gEmulatorPkgTokenSpaceGuid.PcdEmuGop|L"GOP Window"
> gEmulatorPkgTokenSpaceGuid.PcdEmuFileSystem
> gEmulatorPkgTokenSpaceGuid.PcdPeiServicesTablePage
> + gEmulatorPkgTokenSpaceGuid.PcdEmuNetworkInterface|L"0"
>
> [BuildOptions]
> MSFT:*_*_*_DLINK_FLAGS == /out:"$(BIN_DIR)\$(BASE_NAME).exe"
> /base:0x10000000 /pdb:"$(BIN_DIR)\$(BASE_NAME).pdb"
> diff --git a/EmulatorPkg/Win/Host/WinPacketFilter.c
> b/EmulatorPkg/Win/Host/WinPacketFilter.c
> new file mode 100644
> index 0000000000..0b751f97e3
> --- /dev/null
> +++ b/EmulatorPkg/Win/Host/WinPacketFilter.c
> @@ -0,0 +1,1135 @@
> +/**@file
> + Windows Packet Filter implementation of the EMU_SNP_PROTOCOL that
> allows the
> + emulator to get on real networks.
> +
> +Copyright (c) 2004 - 2009, Intel Corporation. All rights reserved.<BR>
> +Portions copyright (c) 2011, Apple Inc. All rights reserved.
> +(C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
> +
> +SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +#include "WinHost.h"
> +
> +#define NETWORK_LIBRARY_NAME_U L"SnpNt32Io.dll"
> +#define NETWORK_LIBRARY_INITIALIZE "SnpInitialize"
> +#define NETWORK_LIBRARY_FINALIZE "SnpFinalize"
> +#define NETWORK_LIBRARY_SET_RCV_FILTER "SnpSetReceiveFilter"
> +#define NETWORK_LIBRARY_RECEIVE "SnpReceive"
> +#define NETWORK_LIBRARY_TRANSMIT "SnpTransmit"
> +
> +#pragma pack(1)
> +typedef struct _NT_NET_INTERFACE_INFO {
> + UINT32 InterfaceIndex;
> + EFI_MAC_ADDRESS MacAddr;
> +} NT_NET_INTERFACE_INFO;
> +#pragma pack()
> +
> +#define NET_ETHER_HEADER_SIZE 14
> +#define MAX_INTERFACE_INFO_NUMBER 16
> +#define SNP_MAX_TX_BUFFER_NUM 65536
> +#define SNP_TX_BUFFER_INCREASEMENT 32
> +#define DEFAULT_SELECTED_NIC_INDEX 0
> +
> +//
> +// Functions in Net Library
> +//
> +typedef
> +INT32
> +(*NT_NET_INITIALIZE) (
> + IN OUT UINT32 *InterfaceCount,
> + IN OUT NT_NET_INTERFACE_INFO * InterfaceInfoBuffer
> + );
> +
> +typedef
> +INT32
> +(*NT_NET_FINALIZE) (
> + VOID
> + );
> +
> +typedef
> +INT32
> +(*NT_NET_SET_RECEIVE_FILTER) (
> + IN UINT32 Index,
> + IN UINT32 EnableFilter,
> + IN UINT32 MCastFilterCnt,
> + IN EFI_MAC_ADDRESS * MCastFilter
> + );
> +
> +typedef
> +INT32
> +(*NT_NET_RECEIVE) (
> + IN UINT32 Index,
> + IN OUT UINT32 *BufferSize,
> + OUT VOID *Buffer
> + );
> +
> +typedef
> +INT32
> +(*NT_NET_TRANSMIT) (
> + IN UINT32 Index,
> + IN UINT32 HeaderSize,
> + IN UINT32 BufferSize,
> + IN VOID *Buffer,
> + IN EFI_MAC_ADDRESS * SrcAddr,
> + IN EFI_MAC_ADDRESS * DestAddr,
> + IN UINT16 *Protocol
> + );
> +
> +typedef struct _NT_NET_UTILITY_TABLE {
> + NT_NET_INITIALIZE Initialize;
> + NT_NET_FINALIZE Finalize;
> + NT_NET_SET_RECEIVE_FILTER SetReceiveFilter;
> + NT_NET_RECEIVE Receive;
> + NT_NET_TRANSMIT Transmit;
> +} NT_NET_UTILITY_TABLE;
> +
> +//
> +// Instance data for each fake SNP instance
> +//
> +#define WIN_NT_INSTANCE_SIGNATURE SIGNATURE_32 ('N', 'T', 'I', 'S')
> +
> +typedef struct {
> + UINT32 Signature;
> +
> + //
> + // Array of the recycled transmit buffer address.
> + //
> + UINT64 *RecycledTxBuf;
> +
> + //
> + // Current number of recycled buffer pointers in RecycledTxBuf.
> + //
> + UINT32 RecycledTxBufCount;
> +
> + //
> + // The maximum number of recycled buffer pointers in RecycledTxBuf.
> + //
> + UINT32 MaxRecycledTxBuf;
> + EFI_SIMPLE_NETWORK_MODE Mode;
> + NT_NET_INTERFACE_INFO InterfaceInfo;
> +} WIN_NT_INSTANCE_DATA;
> +
> +//
> +// Instance data for each SNP private instance
> +//
> +#define WIN_NT_SIMPLE_NETWORK_PRIVATE_SIGNATURE SIGNATURE_32
> ('N', 'T', 's', 'n')
> +
> +typedef struct {
> + UINTN Signature;
> + EMU_IO_THUNK_PROTOCOL *Thunk;
> + EMU_SNP_PROTOCOL EmuSnp;
> + EFI_SIMPLE_NETWORK_MODE *Mode;
> + HMODULE NetworkLibraryHandle;
> + NT_NET_UTILITY_TABLE NtNetUtilityTable;
> + WIN_NT_INSTANCE_DATA Instance;
> +} WIN_NT_SNP_PRIVATE;
> +
> +#define WIN_NT_SNP_PRIVATE_DATA_FROM_THIS(a) \
> + CR(a, WIN_NT_SNP_PRIVATE, EmuSnp,
> WIN_NT_SIMPLE_NETWORK_PRIVATE_SIGNATURE)
> +
> +
> +/**
> + Register storage for SNP Mode.
> +
> + @param This Protocol instance pointer.
> + @param Mode SimpleNetworkProtocol Mode structure passed into driver.
> +
> + @retval EFI_SUCCESS The network interface was started.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpCreateMapping (
> + IN EMU_SNP_PROTOCOL *This,
> + IN EFI_SIMPLE_NETWORK_MODE *Mode
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + Private->Mode = Mode;
> +
> + //
> + // Set the broadcast address.
> + //
> + CopyMem (&Mode->BroadcastAddress, &Private-
> >Instance.Mode.BroadcastAddress, sizeof (EFI_MAC_ADDRESS));
> + //
> + // Set the MAC address.
> + //
> + CopyMem (&Mode->CurrentAddress, &Private-
> >Instance.Mode.CurrentAddress, sizeof (EFI_MAC_ADDRESS));
> + CopyMem (&Mode->PermanentAddress, &Private-
> >Instance.Mode.PermanentAddress, sizeof (EFI_MAC_ADDRESS));
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Changes the state of a network interface from "stopped" to "started".
> +
> + @param This Protocol instance pointer.
> +
> + @retval EFI_SUCCESS The network interface was started.
> + @retval EFI_ALREADY_STARTED The network interface is already in the
> started state.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpStart (
> + IN EMU_SNP_PROTOCOL *This
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + switch (Private->Mode->State) {
> + case EfiSimpleNetworkStopped:
> + break;
> +
> + case EfiSimpleNetworkStarted:
> + case EfiSimpleNetworkInitialized:
> + return EFI_ALREADY_STARTED;
> + break;
> +
> + default:
> + return EFI_DEVICE_ERROR;
> + break;
> + }
> +
> + Private->Mode->State = EfiSimpleNetworkStarted;
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Changes the state of a network interface from "started" to "stopped".
> +
> + @param This Protocol instance pointer.
> +
> + @retval EFI_SUCCESS The network interface was stopped.
> + @retval EFI_ALREADY_STARTED The network interface is already in the
> stopped state.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpStop (
> + IN EMU_SNP_PROTOCOL *This
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + switch ( Private->Mode->State ) {
> + case EfiSimpleNetworkStarted:
> + break;
> +
> + case EfiSimpleNetworkStopped:
> + return EFI_NOT_STARTED;
> + break;
> +
> + default:
> + return EFI_DEVICE_ERROR;
> + break;
> + }
> +
> + Private->Mode->State = EfiSimpleNetworkStopped;
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Resets a network adapter and allocates the transmit and receive buffers
> + required by the network interface; optionally, also requests allocation
> + of additional transmit and receive buffers.
> +
> + @param This The protocol instance pointer.
> + @param ExtraRxBufferSize The size, in bytes, of the extra receive buffer
> space
> + that the driver should allocate for the network interface.
> + Some network interfaces will not be able to use the extra
> + buffer, and the caller will not know if it is actually
> + being used.
> + @param ExtraTxBufferSize The size, in bytes, of the extra transmit buffer
> space
> + that the driver should allocate for the network interface.
> + Some network interfaces will not be able to use the extra
> + buffer, and the caller will not know if it is actually
> + being used.
> +
> + @retval EFI_SUCCESS The network interface was initialized.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_OUT_OF_RESOURCES There was not enough memory for the
> transmit and
> + receive buffers.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpInitialize (
> + IN EMU_SNP_PROTOCOL *This,
> + IN UINTN ExtraRxBufferSize OPTIONAL,
> + IN UINTN ExtraTxBufferSize OPTIONAL
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + switch ( Private->Mode->State ) {
> + case EfiSimpleNetworkStarted:
> + break;
> +
> + case EfiSimpleNetworkStopped:
> + return EFI_NOT_STARTED;
> + break;
> +
> + default:
> + return EFI_DEVICE_ERROR;
> + break;
> + }
> +
> + Private->Mode->MCastFilterCount = 0;
> + Private->Mode->ReceiveFilterSetting = 0;
> + ZeroMem (Private->Mode->MCastFilter, sizeof (Private->Mode-
> >MCastFilter));
> +
> + Private->Mode->State = EfiSimpleNetworkInitialized;
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Resets a network adapter and re-initializes it with the parameters that were
> + provided in the previous call to Initialize().
> +
> + @param This The protocol instance pointer.
> + @param ExtendedVerification Indicates that the driver may perform a more
> + exhaustive verification operation of the device
> + during reset.
> +
> + @retval EFI_SUCCESS The network interface was reset.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpReset (
> + IN EMU_SNP_PROTOCOL *This,
> + IN BOOLEAN ExtendedVerification
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + switch ( Private->Mode->State ) {
> + case EfiSimpleNetworkInitialized:
> + break;
> +
> + case EfiSimpleNetworkStopped:
> + return EFI_NOT_STARTED;
> + break;
> +
> + default:
> + return EFI_DEVICE_ERROR;
> + break;
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Resets a network adapter and leaves it in a state that is safe for
> + another driver to initialize.
> +
> + @param This Protocol instance pointer.
> +
> + @retval EFI_SUCCESS The network interface was shutdown.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpShutdown (
> + IN EMU_SNP_PROTOCOL *This
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + switch ( Private->Mode->State ) {
> + case EfiSimpleNetworkInitialized:
> + break;
> +
> + case EfiSimpleNetworkStopped:
> + return EFI_NOT_STARTED;
> + break;
> +
> + default:
> + return EFI_DEVICE_ERROR;
> + break;
> + }
> +
> + Private->Mode->State = EfiSimpleNetworkStarted;
> +
> + Private->Mode->ReceiveFilterSetting = 0;
> + Private->Mode->MCastFilterCount = 0;
> + ZeroMem (Private->Mode->MCastFilter, sizeof (Private->Mode-
> >MCastFilter));
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Manages the multicast receive filters of a network interface.
> +
> + @param This The protocol instance pointer.
> + @param Enable A bit mask of receive filters to enable on the network
> interface.
> + @param Disable A bit mask of receive filters to disable on the network
> interface.
> + @param ResetMCastFilter Set to TRUE to reset the contents of the multicast
> receive
> + filters on the network interface to their default values.
> + @param McastFilterCnt Number of multicast HW MAC addresses in the
> new
> + MCastFilter list. This value must be less than or equal to
> + the MCastFilterCnt field of EMU_SNP_MODE. This
> + field is optional if ResetMCastFilter is TRUE.
> + @param MCastFilter A pointer to a list of new multicast receive filter
> HW MAC
> + addresses. This list will replace any existing multicast
> + HW MAC address list. This field is optional if
> + ResetMCastFilter is TRUE.
> +
> + @retval EFI_SUCCESS The multicast receive filter list was updated.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpReceiveFilters (
> + IN EMU_SNP_PROTOCOL *This,
> + IN UINT32 Enable,
> + IN UINT32 Disable,
> + IN BOOLEAN ResetMCastFilter,
> + IN UINTN MCastFilterCnt OPTIONAL,
> + IN EFI_MAC_ADDRESS *MCastFilter OPTIONAL
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> + INT32 ReturnValue;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + ReturnValue = Private->NtNetUtilityTable.SetReceiveFilter (
> + Private->Instance.InterfaceInfo.InterfaceIndex,
> + Enable,
> + (UINT32)MCastFilterCnt,
> + MCastFilter
> + );
> +
> + if (ReturnValue <= 0) {
> + return EFI_DEVICE_ERROR;
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Modifies or resets the current station address, if supported.
> +
> + @param This The protocol instance pointer.
> + @param Reset Flag used to reset the station address to the network
> interfaces
> + permanent address.
> + @param New The new station address to be used for the network interface.
> +
> + @retval EFI_SUCCESS The network interfaces station address was
> updated.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpStationAddress (
> + IN EMU_SNP_PROTOCOL *This,
> + IN BOOLEAN Reset,
> + IN EFI_MAC_ADDRESS *New OPTIONAL
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + return EFI_UNSUPPORTED;
> +}
> +
> +/**
> + Resets or collects the statistics on a network interface.
> +
> + @param This Protocol instance pointer.
> + @param Reset Set to TRUE to reset the statistics for the network
> interface.
> + @param StatisticsSize On input the size, in bytes, of StatisticsTable. On
> + output the size, in bytes, of the resulting table of
> + statistics.
> + @param StatisticsTable A pointer to the EFI_NETWORK_STATISTICS
> structure that
> + contains the statistics.
> +
> + @retval EFI_SUCCESS The statistics were collected from the network
> interface.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_BUFFER_TOO_SMALL The Statistics buffer was too small. The
> current buffer
> + size needed to hold the statistics is returned in
> + StatisticsSize.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpStatistics (
> + IN EMU_SNP_PROTOCOL *This,
> + IN BOOLEAN Reset,
> + IN OUT UINTN *StatisticsSize OPTIONAL,
> + OUT EFI_NETWORK_STATISTICS *StatisticsTable OPTIONAL
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + return EFI_UNSUPPORTED;
> +}
> +
> +/**
> + Converts a multicast IP address to a multicast HW MAC address.
> +
> + @param This The protocol instance pointer.
> + @param IPv6 Set to TRUE if the multicast IP address is IPv6 [RFC 2460]. Set
> + to FALSE if the multicast IP address is IPv4 [RFC 791].
> + @param IP The multicast IP address that is to be converted to a multicast
> + HW MAC address.
> + @param MAC The multicast HW MAC address that is to be generated from
> IP.
> +
> + @retval EFI_SUCCESS The multicast IP address was mapped to the
> multicast
> + HW MAC address.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_BUFFER_TOO_SMALL The Statistics buffer was too small. The
> current buffer
> + size needed to hold the statistics is returned in
> + StatisticsSize.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpMCastIpToMac (
> + IN EMU_SNP_PROTOCOL *This,
> + IN BOOLEAN IPv6,
> + IN EFI_IP_ADDRESS *IP,
> + OUT EFI_MAC_ADDRESS *MAC
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + return EFI_UNSUPPORTED;
> +}
> +
> +/**
> + Performs read and write operations on the NVRAM device attached to a
> + network interface.
> +
> + @param This The protocol instance pointer.
> + @param ReadWrite TRUE for read operations, FALSE for write operations.
> + @param Offset Byte offset in the NVRAM device at which to start the
> read or
> + write operation. This must be a multiple of NvRamAccessSize and
> + less than NvRamSize.
> + @param BufferSize The number of bytes to read or write from the NVRAM
> device.
> + This must also be a multiple of NvramAccessSize.
> + @param Buffer A pointer to the data buffer.
> +
> + @retval EFI_SUCCESS The NVRAM access was performed.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpNvData (
> + IN EMU_SNP_PROTOCOL *This,
> + IN BOOLEAN ReadWrite,
> + IN UINTN Offset,
> + IN UINTN BufferSize,
> + IN OUT VOID *Buffer
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + return EFI_UNSUPPORTED;
> +}
> +
> +/**
> + Reads the current interrupt status and recycled transmit buffer status from
> + a network interface.
> +
> + @param This The protocol instance pointer.
> + @param InterruptStatus A pointer to the bit mask of the currently active
> interrupts
> + If this is NULL, the interrupt status will not be read from
> + the device. If this is not NULL, the interrupt status will
> + be read from the device. When the interrupt status is read,
> + it will also be cleared. Clearing the transmit interrupt
> + does not empty the recycled transmit buffer array.
> + @param TxBuf Recycled transmit buffer address. The network
> interface will
> + not transmit if its internal recycled transmit buffer array
> + is full. Reading the transmit buffer does not clear the
> + transmit interrupt. If this is NULL, then the transmit buffer
> + status will not be read. If there are no transmit buffers to
> + recycle and TxBuf is not NULL, * TxBuf will be set to NULL.
> +
> + @retval EFI_SUCCESS The status of the network interface was
> retrieved.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpGetStatus (
> + IN EMU_SNP_PROTOCOL *This,
> + OUT UINT32 *InterruptStatus OPTIONAL,
> + OUT VOID **TxBuf OPTIONAL
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + if (TxBuf != NULL) {
> + if (Private->Instance.RecycledTxBufCount != 0) {
> + Private->Instance.RecycledTxBufCount --;
> + *((UINT8 **) TxBuf) = (UINT8 *) (UINTN)Private-
> >Instance.RecycledTxBuf[Private->Instance.RecycledTxBufCount];
> + } else {
> + *((UINT8 **) TxBuf) = NULL;
> + }
> + }
> +
> + if (InterruptStatus != NULL) {
> + *InterruptStatus = EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Places a packet in the transmit queue of a network interface.
> +
> + @param This The protocol instance pointer.
> + @param HeaderSize The size, in bytes, of the media header to be filled in by
> + the Transmit() function. If HeaderSize is non-zero, then it
> + must be equal to This->Mode->MediaHeaderSize and the
> DestAddr
> + and Protocol parameters must not be NULL.
> + @param BufferSize The size, in bytes, of the entire packet (media header
> and
> + data) to be transmitted through the network interface.
> + @param Buffer A pointer to the packet (media header followed by data)
> to be
> + transmitted. This parameter cannot be NULL. If HeaderSize is
> zero,
> + then the media header in Buffer must already be filled in by the
> + caller. If HeaderSize is non-zero, then the media header will be
> + filled in by the Transmit() function.
> + @param SrcAddr The source HW MAC address. If HeaderSize is zero, then
> this parameter
> + is ignored. If HeaderSize is non-zero and SrcAddr is NULL, then
> + This->Mode->CurrentAddress is used for the source HW MAC
> address.
> + @param DestAddr The destination HW MAC address. If HeaderSize is zero,
> then this
> + parameter is ignored.
> + @param Protocol The type of header to build. If HeaderSize is zero, then
> this
> + parameter is ignored. See RFC 1700, section "Ether Types", for
> + examples.
> +
> + @retval EFI_SUCCESS The packet was placed on the transmit queue.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_NOT_READY The network interface is too busy to accept
> this transmit request.
> + @retval EFI_BUFFER_TOO_SMALL The BufferSize parameter is too small.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the network
> interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpTransmit (
> + IN EMU_SNP_PROTOCOL *This,
> + IN UINTN HeaderSize,
> + IN UINTN BufferSize,
> + IN VOID *Buffer,
> + IN EFI_MAC_ADDRESS *SrcAddr OPTIONAL,
> + IN EFI_MAC_ADDRESS *DestAddr OPTIONAL,
> + IN UINT16 *Protocol OPTIONAL
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> + INT32 ReturnValue;
> + UINT64 *Tmp;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + if ((HeaderSize != 0) && (SrcAddr == NULL)) {
> + SrcAddr = &Private->Instance.Mode.CurrentAddress;
> + }
> +
> + ReturnValue = Private->NtNetUtilityTable.Transmit (
> + Private->Instance.InterfaceInfo.InterfaceIndex,
> + (UINT32)HeaderSize,
> + (UINT32)BufferSize,
> + Buffer,
> + SrcAddr,
> + DestAddr,
> + Protocol
> + );
> +
> + if (ReturnValue < 0) {
> + return EFI_DEVICE_ERROR;
> + } else {
> + if ((Private->Instance.MaxRecycledTxBuf +
> SNP_TX_BUFFER_INCREASEMENT) >= SNP_MAX_TX_BUFFER_NUM) {
> + return EFI_NOT_READY;
> + }
> +
> + if (Private->Instance.RecycledTxBufCount < Private-
> >Instance.MaxRecycledTxBuf) {
> + Private->Instance.RecycledTxBuf[Private->Instance.RecycledTxBufCount] =
> (UINT64) Buffer;
> + Private->Instance.RecycledTxBufCount ++;
> + } else {
> + Tmp = malloc (sizeof (UINT64) * (Private->Instance.MaxRecycledTxBuf +
> SNP_TX_BUFFER_INCREASEMENT));
> + if (Tmp == NULL) {
> + return EFI_DEVICE_ERROR;
> + }
> + CopyMem (Tmp, Private->Instance.RecycledTxBuf, sizeof (UINT64) *
> Private->Instance.RecycledTxBufCount);
> + free (Private->Instance.RecycledTxBuf);
> + Private->Instance.RecycledTxBuf = Tmp;
> + Private->Instance.MaxRecycledTxBuf += SNP_TX_BUFFER_INCREASEMENT;
> + }
> + }
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Receives a packet from a network interface.
> +
> + @param This The protocol instance pointer.
> + @param HeaderSize The size, in bytes, of the media header received on the
> network
> + interface. If this parameter is NULL, then the media header size
> + will not be returned.
> + @param BufferSize On entry, the size, in bytes, of Buffer. On exit, the size,
> in
> + bytes, of the packet that was received on the network interface.
> + @param Buffer A pointer to the data buffer to receive both the media
> header and
> + the data.
> + @param SrcAddr The source HW MAC address. If this parameter is NULL,
> the
> + HW MAC source address will not be extracted from the media
> + header.
> + @param DestAddr The destination HW MAC address. If this parameter is
> NULL,
> + the HW MAC destination address will not be extracted from the
> + media header.
> + @param Protocol The media header type. If this parameter is NULL, then
> the
> + protocol will not be extracted from the media header. See
> + RFC 1700 section "Ether Types" for examples.
> +
> + @retval EFI_SUCCESS The received data was stored in Buffer, and
> BufferSize has
> + been updated to the number of bytes received.
> + @retval EFI_NOT_STARTED The network interface has not been started.
> + @retval EFI_NOT_READY The network interface is too busy to accept
> this transmit
> + request.
> + @retval EFI_BUFFER_TOO_SMALL The BufferSize parameter is too small.
> + @retval EFI_INVALID_PARAMETER One or more of the parameters has an
> unsupported value.
> + @retval EFI_DEVICE_ERROR The command could not be sent to the
> network interface.
> + @retval EFI_UNSUPPORTED This function is not supported by the
> network interface.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpReceive (
> + IN EMU_SNP_PROTOCOL *This,
> + OUT UINTN *HeaderSize OPTIONAL,
> + IN OUT UINTN *BufferSize,
> + OUT VOID *Buffer,
> + OUT EFI_MAC_ADDRESS *SrcAddr OPTIONAL,
> + OUT EFI_MAC_ADDRESS *DestAddr OPTIONAL,
> + OUT UINT16 *Protocol OPTIONAL
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> + INT32 ReturnValue;
> + UINTN BufSize;
> +
> + Private = WIN_NT_SNP_PRIVATE_DATA_FROM_THIS (This);
> +
> + BufSize = *BufferSize;
> +
> + ASSERT (Private->NtNetUtilityTable.Receive != NULL);
> +
> + ReturnValue = Private->NtNetUtilityTable.Receive (
> + Private->Instance.InterfaceInfo.InterfaceIndex,
> + BufferSize,
> + Buffer
> + );
> +
> + if (ReturnValue < 0) {
> + if (ReturnValue == -100) {
> + return EFI_BUFFER_TOO_SMALL;
> + }
> +
> + return EFI_DEVICE_ERROR;
> + } else if (ReturnValue == 0) {
> + return EFI_NOT_READY;
> + }
> +
> + if (HeaderSize != NULL) {
> + *HeaderSize = 14;
> + }
> +
> + if (SrcAddr != NULL) {
> + ZeroMem (SrcAddr, sizeof (EFI_MAC_ADDRESS));
> + CopyMem (SrcAddr, ((UINT8 *) Buffer) + 6, 6);
> + }
> +
> + if (DestAddr != NULL) {
> + ZeroMem (DestAddr, sizeof (EFI_MAC_ADDRESS));
> + CopyMem (DestAddr, ((UINT8 *) Buffer), 6);
> + }
> +
> + if (Protocol != NULL) {
> + *Protocol = NTOHS (*((UINT16 *) (((UINT8 *) Buffer) + 12)));
> + }
> +
> + return (*BufferSize <= BufSize) ? EFI_SUCCESS : EFI_BUFFER_TOO_SMALL;
> +}
> +
> +/**
> + Initialize the snpnt32 driver instance.
> +
> + @param Instance Pointer to the instance context data.
> + @param NetInfo Pointer to the interface info.
> +
> + @retval EFI_SUCCESS The driver instance is initialized.
> + @retval other Initialization errors.
> +
> +**/
> +EFI_STATUS
> +WinNtInitializeInstanceData (
> + IN OUT WIN_NT_INSTANCE_DATA *Instance,
> + IN NT_NET_INTERFACE_INFO *NetInfo
> + )
> +{
> + if (Instance == NULL || NetInfo == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + ZeroMem (Instance, sizeof (WIN_NT_INSTANCE_DATA));
> +
> + Instance->Signature = WIN_NT_INSTANCE_SIGNATURE;
> + Instance->RecycledTxBufCount = 0;
> + Instance->MaxRecycledTxBuf = 32;
> + Instance->Mode.State = EfiSimpleNetworkInitialized;
> + Instance->Mode.HwAddressSize = NET_ETHER_ADDR_LEN;
> + Instance->Mode.MediaHeaderSize = NET_ETHER_HEADER_SIZE;
> + Instance->Mode.MaxPacketSize = 1500;
> + Instance->Mode.MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;
> + Instance->Mode.IfType = NET_IFTYPE_ETHERNET;
> + Instance->Mode.MediaPresentSupported = TRUE;
> + Instance->Mode.MediaPresent = TRUE;
> +
> + //
> + // Allocate the RecycledTxBuf.
> + //
> + Instance->RecycledTxBuf = malloc (sizeof (UINT64) * Instance-
> >MaxRecycledTxBuf);
> + if (Instance->RecycledTxBuf == NULL) {
> + return EFI_OUT_OF_RESOURCES;
> + }
> +
> + //
> + // Set the interface information.
> + //
> + CopyMem (&Instance->InterfaceInfo, NetInfo, sizeof (Instance-
> >InterfaceInfo));
> +
> +
> + //
> + // Set broadcast address
> + //
> + SetMem (&Instance->Mode.BroadcastAddress, sizeof (EFI_MAC_ADDRESS),
> 0xFF);
> +
> + //
> + // Copy Current/PermanentAddress MAC address
> + //
> + CopyMem (&Instance->Mode.CurrentAddress, &Instance-
> >InterfaceInfo.MacAddr, sizeof(Instance->Mode.CurrentAddress));
> + CopyMem (&Instance->Mode.PermanentAddress, &Instance-
> >InterfaceInfo.MacAddr, sizeof(Instance->Mode.PermanentAddress));
> +
> + //
> + // Since the fake SNP is based on a real NIC, to avoid conflict with the host
> + // NIC network stack, we use a different MAC address.
> + // So just change the last byte of the MAC address for the real NIC.
> + //
> + Instance->Mode.CurrentAddress.Addr[NET_ETHER_ADDR_LEN - 1]++;
> +
> + return EFI_SUCCESS;
> +}
> +
> +/**
> + Initialize the net utility data.
> +
> + @param This Pointer to the private data.
> + @param ActiveInstance The active network interface.
> +
> + @retval EFI_SUCCESS The global data is initialized.
> + @retval EFI_NOT_FOUND The required DLL is not found.
> + @retval EFI_DEVICE_ERROR Error initialize network utility library.
> + @retval other Other errors.
> +
> +**/
> +EFI_STATUS
> +WintNtInitializeNetUtilityData (
> + IN OUT WIN_NT_SNP_PRIVATE *Private,
> + IN UINT8 ActiveInstance
> + )
> +{
> + EFI_STATUS Status;
> + CHAR16 *DllFileNameU;
> + INT32 ReturnValue;
> + BOOLEAN NetUtilityLibInitDone;
> + NT_NET_INTERFACE_INFO
> NetInterfaceInfoBuffer[MAX_INTERFACE_INFO_NUMBER];
> + UINT32 InterfaceCount;
> + UINT8 ActiveInterfaceIndex;
> +
> + if (Private == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + NetUtilityLibInitDone = FALSE;
> + InterfaceCount = MAX_INTERFACE_INFO_NUMBER;
> + DllFileNameU = NETWORK_LIBRARY_NAME_U;
> +
> + //
> + // Load network utility library
> + //
> + Private->NetworkLibraryHandle = LoadLibraryEx (DllFileNameU, NULL, 0);
> + if (NULL == Private->NetworkLibraryHandle) {
> + return EFI_NOT_FOUND;
> + }
> +
> + Private->NtNetUtilityTable.Initialize = (NT_NET_INITIALIZE) GetProcAddress
> (Private->NetworkLibraryHandle, NETWORK_LIBRARY_INITIALIZE);
> + if (NULL == Private->NtNetUtilityTable.Initialize) {
> + Status = EFI_NOT_FOUND;
> + goto ErrorReturn;
> + }
> +
> + Private->NtNetUtilityTable.Finalize = (NT_NET_FINALIZE) GetProcAddress
> (Private->NetworkLibraryHandle, NETWORK_LIBRARY_FINALIZE);
> + if (NULL == Private->NtNetUtilityTable.Finalize) {
> + Status = EFI_NOT_FOUND;
> + goto ErrorReturn;
> + }
> +
> + Private->NtNetUtilityTable.SetReceiveFilter = (NT_NET_SET_RECEIVE_FILTER)
> GetProcAddress (Private->NetworkLibraryHandle,
> NETWORK_LIBRARY_SET_RCV_FILTER);
> + if (NULL == Private->NtNetUtilityTable.SetReceiveFilter) {
> + Status = EFI_NOT_FOUND;
> + goto ErrorReturn;
> + }
> +
> + Private->NtNetUtilityTable.Receive = (NT_NET_RECEIVE) GetProcAddress
> (Private->NetworkLibraryHandle, NETWORK_LIBRARY_RECEIVE);
> + if (NULL == Private->NtNetUtilityTable.Receive) {
> + Status = EFI_NOT_FOUND;
> + goto ErrorReturn;
> + }
> +
> + Private->NtNetUtilityTable.Transmit = (NT_NET_TRANSMIT) GetProcAddress
> (Private->NetworkLibraryHandle, NETWORK_LIBRARY_TRANSMIT);
> + if (NULL == Private->NtNetUtilityTable.Transmit) {
> + Status = EFI_NOT_FOUND;
> + goto ErrorReturn;
> + }
> +
> + //
> + // Initialize the network utility library
> + // And enumerate the interfaces in emulator host
> + //
> + ReturnValue = Private->NtNetUtilityTable.Initialize (&InterfaceCount,
> &NetInterfaceInfoBuffer[0]);
> + if (ReturnValue <= 0) {
> + Status = EFI_DEVICE_ERROR;
> + goto ErrorReturn;
> + }
> +
> + NetUtilityLibInitDone = TRUE;
> +
> + if (InterfaceCount == 0) {
> + Status = EFI_NOT_FOUND;
> + goto ErrorReturn;
> + }
> +
> + DEBUG ((DEBUG_INFO, "%a, total %d interface(s) found\n", __FUNCTION__,
> InterfaceCount));
> + //
> + // Active interface index is set to first interface if given instance does
> + // not exist.
> + //
> + ActiveInterfaceIndex = (ActiveInstance >= InterfaceCount ?
> DEFAULT_SELECTED_NIC_INDEX : ActiveInstance);
> +
> + //
> + // Initialize instance
> + //
> + Status = WinNtInitializeInstanceData (&Private->Instance,
> &NetInterfaceInfoBuffer[ActiveInterfaceIndex]);
> + if (EFI_ERROR (Status)) {
> + goto ErrorReturn;
> + }
> +
> + return EFI_SUCCESS;
> +
> +ErrorReturn:
> +
> + if (Private->Instance.RecycledTxBuf != NULL) {
> + free (Private->Instance.RecycledTxBuf);
> + }
> +
> + if (NetUtilityLibInitDone) {
> + if (Private->NtNetUtilityTable.Finalize != NULL) {
> + Private->NtNetUtilityTable.Finalize ();
> + Private->NtNetUtilityTable.Finalize = NULL;
> + }
> + }
> +
> + return Status;
> +}
> +
> +/**
> + Release the net utility data.
> +
> + @param This Pointer to the private data.
> +
> + @retval EFI_SUCCESS The global data is released.
> + @retval other Other errors.
> +
> +**/
> +EFI_STATUS
> +WintNtReleaseNetUtilityData (
> + IN OUT WIN_NT_SNP_PRIVATE *Private
> + )
> +{
> + if (Private == NULL) {
> + return EFI_INVALID_PARAMETER;
> + }
> +
> + if (Private->Instance.RecycledTxBuf != NULL) {
> + free (Private->Instance.RecycledTxBuf);
> + }
> +
> + if (Private->NtNetUtilityTable.Finalize != NULL) {
> + Private->NtNetUtilityTable.Finalize ();
> + }
> +
> + FreeLibrary (Private->NetworkLibraryHandle);
> +
> + return EFI_SUCCESS;
> +}
> +
> +EMU_SNP_PROTOCOL mWinNtSnpProtocol = {
> + WinNtSnpCreateMapping,
> + WinNtSnpStart,
> + WinNtSnpStop,
> + WinNtSnpInitialize,
> + WinNtSnpReset,
> + WinNtSnpShutdown,
> + WinNtSnpReceiveFilters,
> + WinNtSnpStationAddress,
> + WinNtSnpStatistics,
> + WinNtSnpMCastIpToMac,
> + WinNtSnpNvData,
> + WinNtSnpGetStatus,
> + WinNtSnpTransmit,
> + WinNtSnpReceive
> +};
> +
> +/**
> + Open SNP thunk protocol.
> +
> + @param This Pointer to the thunk protocol instance.
> +
> + @retval EFI_SUCCESS SNP thunk protocol is opened successfully.
> + @retval EFI_UNSUPPORTED This is not SNP thunk protocol.
> + @retval EFI_OUT_OF_RESOURCES Not enough memory.
> + @retval other Other errors.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpThunkOpen (
> + IN EMU_IO_THUNK_PROTOCOL *This
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> + UINT8 HostInterfaceIndex;
> +
> + HostInterfaceIndex = 0;
> +
> + if (This->Private != NULL) {
> + return EFI_ALREADY_STARTED;
> + }
> +
> + if (!CompareGuid (This->Protocol, &gEmuSnpProtocolGuid)) {
> + return EFI_UNSUPPORTED;
> + }
> +
> + Private = malloc (sizeof (WIN_NT_SNP_PRIVATE));
> + if (Private == NULL) {
> + return EFI_OUT_OF_RESOURCES;
> + }
> +
> + Private->Signature = WIN_NT_SIMPLE_NETWORK_PRIVATE_SIGNATURE;
> + Private->Thunk = This;
> + CopyMem (&Private->EmuSnp, &mWinNtSnpProtocol, sizeof
> (mWinNtSnpProtocol));
> +
> + This->Interface = &Private->EmuSnp;
> + This->Private = Private;
> +
> + if (This->ConfigString != NULL && This->ConfigString[0] != '\0') {
> + HostInterfaceIndex = (UINT8)StrDecimalToUintn (This->ConfigString);
> + }
> +
> + return WintNtInitializeNetUtilityData (Private, HostInterfaceIndex);
> +}
> +
> +/**
> + Close SNP thunk protocol.
> +
> + @param This Pointer to the thunk protocol instance.
> +
> + @retval EFI_SUCCESS SNP thunk protocol is closed successfully.
> + @retval EFI_UNSUPPORTED This is not SNP thunk protocol.
> + @retval other Other errors.
> +
> +**/
> +EFI_STATUS
> +WinNtSnpThunkClose (
> + IN EMU_IO_THUNK_PROTOCOL *This
> + )
> +{
> + WIN_NT_SNP_PRIVATE *Private;
> +
> + if (!CompareGuid (This->Protocol, &gEmuSnpProtocolGuid)) {
> + return EFI_UNSUPPORTED;
> + }
> +
> + Private = This->Private;
> + WintNtReleaseNetUtilityData (Private);
> + free (Private);
> +
> + return EFI_SUCCESS;
> +}
> +
> +EMU_IO_THUNK_PROTOCOL mWinNtSnpThunkIo = {
> + &gEmuSnpProtocolGuid,
> + NULL,
> + NULL,
> + 0,
> + WinNtSnpThunkOpen,
> + WinNtSnpThunkClose,
> + NULL
> +};
> --
> 2.20.1.windows.1
prev parent reply other threads:[~2020-06-04 8:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-09 3:20 [PATCH v2] EmulatorPkg/WinHost: Enable network support Nickle Wang
2020-06-04 8:08 ` Ni, Ray [this message]
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