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6fd184d0322dbd12abfd18753bd2d29a6637cbf3
system76-edk2/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Driver.c
sfu5 bf1400b9ad Get ParentDevicePath by using attribute EFI_OPEN_PROTOCOL_GET_PROTOCOL instead of BY_CHILD. 
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Ouyang Qian <qian.ouyang@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14313 6f19259b-4bc3-4df7-8a09-765794883524
2013-04-25 01:18:58 +00:00

790 lines
24 KiB
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/** @file
Tcp driver function.
Copyright (c) 2005 - 2013, 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>
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "Tcp4Main.h"
UINT16 mTcp4RandomPort;
extern EFI_COMPONENT_NAME_PROTOCOL gTcp4ComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gTcp4ComponentName2;
extern EFI_UNICODE_STRING_TABLE *gTcpControllerNameTable;
TCP4_HEARTBEAT_TIMER mTcp4Timer = {
NULL,
0
};
EFI_TCP4_PROTOCOL mTcp4ProtocolTemplate = {
Tcp4GetModeData,
Tcp4Configure,
Tcp4Routes,
Tcp4Connect,
Tcp4Accept,
Tcp4Transmit,
Tcp4Receive,
Tcp4Close,
Tcp4Cancel,
Tcp4Poll
};
SOCK_INIT_DATA mTcp4DefaultSockData = {
SockStream,
0,
NULL,
TCP_BACKLOG,
TCP_SND_BUF_SIZE,
TCP_RCV_BUF_SIZE,
&mTcp4ProtocolTemplate,
Tcp4CreateSocketCallback,
Tcp4DestroySocketCallback,
NULL,
NULL,
0,
Tcp4Dispatcher,
NULL,
};
EFI_DRIVER_BINDING_PROTOCOL mTcp4DriverBinding = {
Tcp4DriverBindingSupported,
Tcp4DriverBindingStart,
Tcp4DriverBindingStop,
0xa,
NULL,
NULL
};
EFI_SERVICE_BINDING_PROTOCOL mTcp4ServiceBinding = {
Tcp4ServiceBindingCreateChild,
Tcp4ServiceBindingDestroyChild
};
/**
Create and start the heartbeat timer for TCP driver.
@retval EFI_SUCCESS The timer is successfully created and started.
@retval other The timer is not created.
**/
EFI_STATUS
Tcp4CreateTimer (
VOID
)
{
EFI_STATUS Status;
Status = EFI_SUCCESS;
if (mTcp4Timer.RefCnt == 0) {
Status = gBS->CreateEvent (
EVT_TIMER | EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
TcpTicking,
NULL,
&mTcp4Timer.TimerEvent
);
if (!EFI_ERROR (Status)) {
Status = gBS->SetTimer (
mTcp4Timer.TimerEvent,
TimerPeriodic,
(UINT64) (TICKS_PER_SECOND / TCP_TICK_HZ)
);
}
}
if (!EFI_ERROR (Status)) {
mTcp4Timer.RefCnt++;
}
return Status;
}
/**
Stop and destroy the heartbeat timer for TCP driver.
**/
VOID
Tcp4DestroyTimer (
VOID
)
{
ASSERT (mTcp4Timer.RefCnt > 0);
mTcp4Timer.RefCnt--;
if (mTcp4Timer.RefCnt > 0) {
return;
}
gBS->SetTimer (mTcp4Timer.TimerEvent, TimerCancel, 0);
gBS->CloseEvent (mTcp4Timer.TimerEvent);
mTcp4Timer.TimerEvent = NULL;
}
/**
Callback function which provided by user to remove one node in NetDestroyLinkList process.
@param[in] Entry The entry to be removed.
@param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList.
@retval EFI_SUCCESS The entry has been removed successfully.
@retval Others Fail to remove the entry.
**/
EFI_STATUS
EFIAPI
Tcp4DestroyChildEntryInHandleBuffer (
IN LIST_ENTRY *Entry,
IN VOID *Context
)
{
SOCKET *Sock;
EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
UINTN NumberOfChildren;
EFI_HANDLE *ChildHandleBuffer;
if (Entry == NULL || Context == NULL) {
return EFI_INVALID_PARAMETER;
}
Sock = NET_LIST_USER_STRUCT_S (Entry, SOCKET, Link, SOCK_SIGNATURE);
ServiceBinding = ((TCP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ServiceBinding;
NumberOfChildren = ((TCP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->NumberOfChildren;
ChildHandleBuffer = ((TCP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ChildHandleBuffer;
if (!NetIsInHandleBuffer (Sock->SockHandle, NumberOfChildren, ChildHandleBuffer)) {
return EFI_SUCCESS;
}
return ServiceBinding->DestroyChild (ServiceBinding, Sock->SockHandle);
}
/**
The entry point for Tcp4 driver, used to install Tcp4 driver on the ImageHandle.
@param ImageHandle The firmware allocated handle for this
driver image.
@param SystemTable Pointer to the EFI system table.
@retval EFI_SUCCESS Driver loaded.
@retval other Driver not loaded.
**/
EFI_STATUS
EFIAPI
Tcp4DriverEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
UINT32 Seed;
//
// Install the TCP4 Driver Binding Protocol
//
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&mTcp4DriverBinding,
ImageHandle,
&gTcp4ComponentName,
&gTcp4ComponentName2
);
ASSERT_EFI_ERROR (Status);
//
// Initialize ISS and random port.
//
Seed = NetRandomInitSeed ();
mTcpGlobalIss = NET_RANDOM (Seed) % mTcpGlobalIss;
mTcp4RandomPort = (UINT16) (TCP4_PORT_KNOWN +
(UINT16) (NET_RANDOM(Seed) % TCP4_PORT_KNOWN));
return Status;
}
/**
Tests to see if this driver supports a given controller.
If a child device is provided, it further tests to see if this driver supports
creating a handle for the specified child device.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle The handle of the controller to test. This handle
must support a protocol interface that supplies
an I/O abstraction to the driver.
@param RemainingDevicePath A pointer to the remaining portion of a device path.
This parameter is ignored by device drivers, and is optional for bus drivers.
@retval EFI_SUCCESS The device specified by ControllerHandle and
RemainingDevicePath is supported by the driver
specified by This.
@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
RemainingDevicePath is already being managed by
the driver specified by This.
@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
RemainingDevicePath is already being managed by a
different driver or an application that requires
exclusive access.
@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
RemainingDevicePath is not supported by the driver
specified by This.
**/
EFI_STATUS
EFIAPI
Tcp4DriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
)
{
EFI_STATUS Status;
//
// Test for the Tcp4ServiceBinding Protocol
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiTcp4ServiceBindingProtocolGuid,
NULL,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
if (!EFI_ERROR (Status)) {
return EFI_ALREADY_STARTED;
}
//
// Test for the Ip4 Protocol
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiIp4ServiceBindingProtocolGuid,
NULL,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
return Status;
}
/**
Start this driver on ControllerHandle.
The Start() function is designed to be invoked from the EFI boot service
ConnectController(). As a result, much of the error checking on the parameters
to Start() has been moved into this common boot service. It is legal to call
Start() from other locations, but the following calling restrictions must be
followed or the system behavior will not be deterministic.
1. ControllerHandle must be a valid EFI_HANDLE.
2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally
aligned EFI_DEVICE_PATH_PROTOCOL.
3. Prior to calling Start(), the Supported() function for the driver specified
by This must have been called with the same calling parameters, and Supported()
must have returned EFI_SUCCESS.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle The handle of the controller to start. This handle
must support a protocol interface that supplies
an I/O abstraction to the driver.
@param RemainingDevicePath A pointer to the remaining portion of a device path.
This parameter is ignored by device drivers, and is
optional for bus drivers.
@retval EFI_SUCCESS The device was started.
@retval EFI_ALREADY_STARTED The device could not be started due to a device error.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack
of resources.
**/
EFI_STATUS
EFIAPI
Tcp4DriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
)
{
EFI_STATUS Status;
TCP4_SERVICE_DATA *TcpServiceData;
IP_IO_OPEN_DATA OpenData;
TcpServiceData = AllocateZeroPool (sizeof (TCP4_SERVICE_DATA));
if (NULL == TcpServiceData) {
DEBUG ((EFI_D_ERROR, "Tcp4DriverBindingStart: Have no enough"
" resource to create a Tcp Servcie Data\n"));
return EFI_OUT_OF_RESOURCES;
}
//
// Create a new IP IO to Consume it
//
TcpServiceData->IpIo = IpIoCreate (
This->DriverBindingHandle,
ControllerHandle,
IP_VERSION_4
);
if (NULL == TcpServiceData->IpIo) {
DEBUG ((EFI_D_ERROR, "Tcp4DriverBindingStart: Have no enough"
" resource to create an Ip Io\n"));
Status = EFI_OUT_OF_RESOURCES;
goto ON_ERROR;
}
//
// Configure and start IpIo.
//
ZeroMem (&OpenData, sizeof (IP_IO_OPEN_DATA));
CopyMem (
&OpenData.IpConfigData.Ip4CfgData,
&mIp4IoDefaultIpConfigData,
sizeof (EFI_IP4_CONFIG_DATA)
);
OpenData.IpConfigData.Ip4CfgData.DefaultProtocol = EFI_IP_PROTO_TCP;
OpenData.PktRcvdNotify = Tcp4RxCallback;
Status = IpIoOpen (TcpServiceData->IpIo, &OpenData);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
//
// Create the timer event used by TCP driver
//
Status = Tcp4CreateTimer ();
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Tcp4DriverBindingStart: Create TcpTimer"
" Event failed with %r\n", Status));
goto ON_ERROR;
}
//
// Install the Tcp4ServiceBinding Protocol on the
// controller handle
//
TcpServiceData->Tcp4ServiceBinding = mTcp4ServiceBinding;
Status = gBS->InstallMultipleProtocolInterfaces (
&ControllerHandle,
&gEfiTcp4ServiceBindingProtocolGuid,
&TcpServiceData->Tcp4ServiceBinding,
NULL
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Tcp4DriverBindingStart: Install Tcp4 Service Binding"
" Protocol failed for %r\n", Status));
Tcp4DestroyTimer ();
goto ON_ERROR;
}
//
// Initialize member in TcpServiceData
//
TcpServiceData->ControllerHandle = ControllerHandle;
TcpServiceData->Signature = TCP4_DRIVER_SIGNATURE;
TcpServiceData->DriverBindingHandle = This->DriverBindingHandle;
InitializeListHead (&TcpServiceData->SocketList);
TcpSetVariableData (TcpServiceData);
return EFI_SUCCESS;
ON_ERROR:
if (TcpServiceData->IpIo != NULL) {
IpIoDestroy (TcpServiceData->IpIo);
TcpServiceData->IpIo = NULL;
}
FreePool (TcpServiceData);
return Status;
}
/**
Stop this driver on ControllerHandle.
The Stop() function is designed to be invoked from the EFI boot service
DisconnectController(). As a result, much of the error checking on the parameters
to Stop() has been moved into this common boot service. It is legal to call Stop()
from other locations, but the following calling restrictions must be followed
or the system behavior will not be deterministic.
1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call
to this same driver's Start() function.
2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
EFI_HANDLE. In addition, all of these handles must have been created in this
driver's Start() function, and the Start() function must have called OpenProtocol()
on ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle A handle to the device being stopped. The handle must
support a bus specific I/O protocol for the driver
to use to stop the device.
@param NumberOfChildren The number of child device handles in ChildHandleBuffer.
@param ChildHandleBuffer An array of child handles to be freed. May be NULL if
NumberOfChildren is 0.
@retval EFI_SUCCESS The device was stopped.
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
**/
EFI_STATUS
EFIAPI
Tcp4DriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_HANDLE NicHandle;
EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
TCP4_SERVICE_DATA *TcpServiceData;
LIST_ENTRY *List;
TCP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT Context;
// Find the NicHandle where Tcp4 ServiceBinding Protocol is installed.
//
NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiIp4ProtocolGuid);
if (NicHandle == NULL) {
return EFI_SUCCESS;
}
//
// Retrieve the TCP driver Data Structure
//
Status = gBS->OpenProtocol (
NicHandle,
&gEfiTcp4ServiceBindingProtocolGuid,
(VOID **) &ServiceBinding,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Tcp4DriverBindingStop: Locate Tcp4 Service "
" Binding Protocol failed with %r\n", Status));
return EFI_DEVICE_ERROR;
}
TcpServiceData = TCP4_FROM_THIS (ServiceBinding);
if (NumberOfChildren != 0) {
List = &TcpServiceData->SocketList;
Context.ServiceBinding = ServiceBinding;
Context.NumberOfChildren = NumberOfChildren;
Context.ChildHandleBuffer = ChildHandleBuffer;
Status = NetDestroyLinkList (
List,
Tcp4DestroyChildEntryInHandleBuffer,
&Context,
NULL
);
} else if (IsListEmpty (&TcpServiceData->SocketList)) {
//
// Uninstall TCP servicebinding protocol
//
gBS->UninstallMultipleProtocolInterfaces (
NicHandle,
&gEfiTcp4ServiceBindingProtocolGuid,
ServiceBinding,
NULL
);
//
// Destroy the IpIO consumed by TCP driver
//
IpIoDestroy (TcpServiceData->IpIo);
TcpServiceData->IpIo = NULL;
//
// Destroy the heartbeat timer.
//
Tcp4DestroyTimer ();
//
// Clear the variable.
//
TcpClearVariableData (TcpServiceData);
if (gTcpControllerNameTable != NULL) {
FreeUnicodeStringTable (gTcpControllerNameTable);
gTcpControllerNameTable = NULL;
}
//
// Release the TCP service data
//
FreePool (TcpServiceData);
Status = EFI_SUCCESS;
}
return Status;
}
/**
Open Ip4 and device path protocols for a created socket, and insert it in
socket list.
@param This Pointer to the socket just created
@param Context Context of the socket
@retval EFI_SUCCESS This protocol is installed successfully.
@retval other Some error occured.
**/
EFI_STATUS
Tcp4CreateSocketCallback (
IN SOCKET *This,
IN VOID *Context
)
{
EFI_STATUS Status;
TCP4_SERVICE_DATA *TcpServiceData;
EFI_IP4_PROTOCOL *Ip4;
TcpServiceData = ((TCP4_PROTO_DATA *) This->ProtoReserved)->TcpService;
//
// Open the default Ip4 protocol of IP_IO BY_DRIVER.
//
Status = gBS->OpenProtocol (
TcpServiceData->IpIo->ChildHandle,
&gEfiIp4ProtocolGuid,
(VOID **) &Ip4,
TcpServiceData->DriverBindingHandle,
This->SockHandle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Open the device path on the handle where service binding resides on.
//
Status = gBS->OpenProtocol (
TcpServiceData->ControllerHandle,
&gEfiDevicePathProtocolGuid,
(VOID **) &This->ParentDevicePath,
TcpServiceData->DriverBindingHandle,
This->SockHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
gBS->CloseProtocol (
TcpServiceData->IpIo->ChildHandle,
&gEfiIp4ProtocolGuid,
TcpServiceData->DriverBindingHandle,
This->SockHandle
);
} else {
//
// Insert this socket into the SocketList.
//
InsertTailList (&TcpServiceData->SocketList, &This->Link);
}
return Status;
}
/**
Close Ip4 and device path protocols for a socket, and remove it from socket list.
@param This Pointer to the socket to be removed
@param Context Context of the socket
**/
VOID
Tcp4DestroySocketCallback (
IN SOCKET *This,
IN VOID *Context
)
{
TCP4_SERVICE_DATA *TcpServiceData;
TcpServiceData = ((TCP4_PROTO_DATA *) This->ProtoReserved)->TcpService;
//
// Remove this node from the list.
//
RemoveEntryList (&This->Link);
//
// Close the Ip4 protocol.
//
gBS->CloseProtocol (
TcpServiceData->IpIo->ChildHandle,
&gEfiIp4ProtocolGuid,
TcpServiceData->DriverBindingHandle,
This->SockHandle
);
}
/**
Creates a child handle and installs a protocol.
The CreateChild() function installs a protocol on ChildHandle. If ChildHandle
is a pointer to NULL, then a new handle is created and returned in ChildHandle.
If ChildHandle is not a pointer to NULL, then the protocol installs on the existing
ChildHandle.
@param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
@param ChildHandle Pointer to the handle of the child to create. If it is NULL, then
a new handle is created. If it is a pointer to an existing UEFI
handle, then the protocol is added to the existing UEFI handle.
@retval EFI_SUCCES The protocol was added to ChildHandle.
@retval EFI_INVALID_PARAMETER ChildHandle is NULL.
@retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to create
the child.
@retval other The child handle was not created.
**/
EFI_STATUS
EFIAPI
Tcp4ServiceBindingCreateChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN OUT EFI_HANDLE *ChildHandle
)
{
SOCKET *Sock;
TCP4_SERVICE_DATA *TcpServiceData;
TCP4_PROTO_DATA TcpProto;
EFI_STATUS Status;
EFI_TPL OldTpl;
if (NULL == This || NULL == ChildHandle) {
return EFI_INVALID_PARAMETER;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
Status = EFI_SUCCESS;
TcpServiceData = TCP4_FROM_THIS (This);
TcpProto.TcpService = TcpServiceData;
TcpProto.TcpPcb = NULL;
//
// Create a tcp instance with defualt Tcp default
// sock init data and TcpProto
//
mTcp4DefaultSockData.ProtoData = &TcpProto;
mTcp4DefaultSockData.DataSize = sizeof (TCP4_PROTO_DATA);
mTcp4DefaultSockData.DriverBinding = TcpServiceData->DriverBindingHandle;
Sock = SockCreateChild (&mTcp4DefaultSockData);
if (NULL == Sock) {
DEBUG ((EFI_D_ERROR, "Tcp4DriverBindingCreateChild: "
"No resource to create a Tcp Child\n"));
Status = EFI_OUT_OF_RESOURCES;
} else {
*ChildHandle = Sock->SockHandle;
}
mTcp4DefaultSockData.ProtoData = NULL;
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Destroys a child handle with a protocol installed on it.
The DestroyChild() function does the opposite of CreateChild(). It removes a protocol
that was installed by CreateChild() from ChildHandle. If the removed protocol is the
last protocol on ChildHandle, then ChildHandle is destroyed.
@param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
@param ChildHandle Handle of the child to destroy
@retval EFI_SUCCES The protocol was removed from ChildHandle.
@retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is
being removed.
@retval EFI_INVALID_PARAMETER Child handle is NULL.
@retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle
because its services are being used.
@retval other The child handle was not destroyed.
**/
EFI_STATUS
EFIAPI
Tcp4ServiceBindingDestroyChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN EFI_HANDLE ChildHandle
)
{
EFI_STATUS Status;
EFI_TCP4_PROTOCOL *Tcp4;
SOCKET *Sock;
if (NULL == This || NULL == ChildHandle) {
return EFI_INVALID_PARAMETER;
}
//
// retrieve the Tcp4 protocol from ChildHandle
//
Status = gBS->OpenProtocol (
ChildHandle,
&gEfiTcp4ProtocolGuid,
(VOID **) &Tcp4,
mTcp4DriverBinding.DriverBindingHandle,
ChildHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
Status = EFI_UNSUPPORTED;
} else {
//
// destroy this sock and related Tcp protocol control
// block
//
Sock = SOCK_FROM_THIS (Tcp4);
SockDestroyChild (Sock);
}
return Status;
}
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