NetworkPkg: Move Network library and drivers from MdeModulePkg to NetworkPkg

Signed-off-by: Liming Gao <liming.gao@intel.com>
Cc: Siyuan Fu <siyuan.fu@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Siyuan Fu <siyuan.fu@intel.com>
This commit is contained in:
Liming Gao
2019-05-15 20:02:18 +08:00
parent c0fd7f734e
commit 4542f8b813
147 changed files with 24 additions and 24 deletions

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/** @file
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Udp4Impl.h"
//
// EFI Component Name Functions
//
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param[in] Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param[out] DriverName A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UdpComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
);
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param[in] ControllerHandle The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param[in] ChildHandle The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param[in] Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param[out] ControllerName A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UdpComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gUdp4ComponentName = {
UdpComponentNameGetDriverName,
UdpComponentNameGetControllerName,
"eng"
};
//
// EFI Component Name 2 Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gUdp4ComponentName2 = {
(EFI_COMPONENT_NAME2_GET_DRIVER_NAME) UdpComponentNameGetDriverName,
(EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) UdpComponentNameGetControllerName,
"en"
};
GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mUdpDriverNameTable[] = {
{
"eng;en",
L"UDP Network Service Driver"
},
{
NULL,
NULL
}
};
GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE *gUdpControllerNameTable = NULL;
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param[in] Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param[out] DriverName A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UdpComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
)
{
return LookupUnicodeString2 (
Language,
This->SupportedLanguages,
mUdpDriverNameTable,
DriverName,
(BOOLEAN)(This == &gUdp4ComponentName)
);
}
/**
Update the component name for the Udp4 child handle.
@param Udp4[in] A pointer to the EFI_UDP4_PROTOCOL.
@retval EFI_SUCCESS Update the ControllerNameTable of this instance successfully.
@retval EFI_INVALID_PARAMETER The input parameter is invalid.
**/
EFI_STATUS
UpdateName (
EFI_UDP4_PROTOCOL *Udp4
)
{
EFI_STATUS Status;
CHAR16 HandleName[64];
EFI_UDP4_CONFIG_DATA Udp4ConfigData;
if (Udp4 == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Format the child name into the string buffer as:
// UDPv4 (SrcPort=59, DestPort=60)
//
Status = Udp4->GetModeData (Udp4, &Udp4ConfigData, NULL, NULL, NULL);
if (!EFI_ERROR (Status)) {
UnicodeSPrint (HandleName, sizeof (HandleName),
L"UDPv4 (SrcPort=%d, DestPort=%d)",
Udp4ConfigData.StationPort,
Udp4ConfigData.RemotePort
);
} else if (Status == EFI_NOT_STARTED) {
UnicodeSPrint (
HandleName,
sizeof (HandleName),
L"UDPv4 (Not started)"
);
} else {
return Status;
}
if (gUdpControllerNameTable != NULL) {
FreeUnicodeStringTable (gUdpControllerNameTable);
gUdpControllerNameTable = NULL;
}
Status = AddUnicodeString2 (
"eng",
gUdp4ComponentName.SupportedLanguages,
&gUdpControllerNameTable,
HandleName,
TRUE
);
if (EFI_ERROR (Status)) {
return Status;
}
return AddUnicodeString2 (
"en",
gUdp4ComponentName2.SupportedLanguages,
&gUdpControllerNameTable,
HandleName,
FALSE
);
}
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param[in] ControllerHandle The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param[in] ChildHandle The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param[in] Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param[out] ControllerName A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UdpComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
)
{
EFI_STATUS Status;
EFI_UDP4_PROTOCOL *Udp4;
//
// Only provide names for child handles.
//
if (ChildHandle == NULL) {
return EFI_UNSUPPORTED;
}
//
// Make sure this driver produced ChildHandle
//
Status = EfiTestChildHandle (
ControllerHandle,
ChildHandle,
&gEfiIp4ProtocolGuid
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Retrieve an instance of a produced protocol from ChildHandle
//
Status = gBS->OpenProtocol (
ChildHandle,
&gEfiUdp4ProtocolGuid,
(VOID **)&Udp4,
NULL,
NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Update the component name for this child handle.
//
Status = UpdateName (Udp4);
if (EFI_ERROR (Status)) {
return Status;
}
return LookupUnicodeString2 (
Language,
This->SupportedLanguages,
gUdpControllerNameTable,
ControllerName,
(BOOLEAN)(This == &gUdp4ComponentName)
);
}

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/** @file
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Udp4Impl.h"
EFI_DRIVER_BINDING_PROTOCOL gUdp4DriverBinding = {
Udp4DriverBindingSupported,
Udp4DriverBindingStart,
Udp4DriverBindingStop,
0xa,
NULL,
NULL
};
EFI_SERVICE_BINDING_PROTOCOL mUdp4ServiceBinding = {
Udp4ServiceBindingCreateChild,
Udp4ServiceBindingDestroyChild
};
/**
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
Udp4DestroyChildEntryInHandleBuffer (
IN LIST_ENTRY *Entry,
IN VOID *Context
)
{
UDP4_INSTANCE_DATA *Instance;
EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
UINTN NumberOfChildren;
EFI_HANDLE *ChildHandleBuffer;
if (Entry == NULL || Context == NULL) {
return EFI_INVALID_PARAMETER;
}
Instance = NET_LIST_USER_STRUCT_S (Entry, UDP4_INSTANCE_DATA, Link, UDP4_INSTANCE_DATA_SIGNATURE);
ServiceBinding = ((UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ServiceBinding;
NumberOfChildren = ((UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->NumberOfChildren;
ChildHandleBuffer = ((UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT *) Context)->ChildHandleBuffer;
if (!NetIsInHandleBuffer (Instance->ChildHandle, NumberOfChildren, ChildHandleBuffer)) {
return EFI_SUCCESS;
}
return ServiceBinding->DestroyChild (ServiceBinding, Instance->ChildHandle);
}
/**
Test to see if this driver supports ControllerHandle. This service
is called by the EFI boot service ConnectController(). In
order to make drivers as small as possible, there are a few calling
restrictions for this service. ConnectController() must
follow these calling restrictions. If any other agent wishes to call
Supported() it must also follow these calling restrictions.
@param[in] This Protocol instance pointer.
@param[in] ControllerHandle Handle of device to test
@param[in] RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device
@retval EFI_ALREADY_STARTED This driver is already running on this device
@retval other This driver does not support this device
**/
EFI_STATUS
EFIAPI
Udp4DriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
)
{
EFI_STATUS Status;
//
// Test for the Udp4ServiceBinding Protocol
//
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiUdp4ServiceBindingProtocolGuid,
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. This service is called by the
EFI boot service ConnectController(). In order to make
drivers as small as possible, there are a few calling restrictions for
this service. ConnectController() must follow these
calling restrictions. If any other agent wishes to call Start() it
must also follow these calling restrictions.
@param[in] This Protocol instance pointer.
@param[in] ControllerHandle Handle of device to bind driver to
@param[in] RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
**/
EFI_STATUS
EFIAPI
Udp4DriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
)
{
EFI_STATUS Status;
UDP4_SERVICE_DATA *Udp4Service;
//
// Allocate Private Context Data Structure.
//
Udp4Service = AllocatePool (sizeof (UDP4_SERVICE_DATA));
if (Udp4Service == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = Udp4CreateService (Udp4Service, This->DriverBindingHandle, ControllerHandle);
if (EFI_ERROR (Status)) {
FreePool (Udp4Service);
return Status;
}
//
// Install the Udp4ServiceBindingProtocol on the ControllerHandle.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&ControllerHandle,
&gEfiUdp4ServiceBindingProtocolGuid,
&Udp4Service->ServiceBinding,
NULL
);
if (EFI_ERROR (Status)) {
Udp4CleanService (Udp4Service);
FreePool (Udp4Service);
}
return Status;
}
/**
Stop this driver on ControllerHandle. This service is called by the
EFI boot service DisconnectController(). In order to
make drivers as small as possible, there are a few calling
restrictions for this service. DisconnectController()
must follow these calling restrictions. If any other agent wishes
to call Stop() it must also follow these calling restrictions.
@param[in] This Protocol instance pointer.
@param[in] ControllerHandle Handle of device to stop driver on
@param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param[in] ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
Udp4DriverBindingStop (
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;
UDP4_SERVICE_DATA *Udp4Service;
UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT Context;
LIST_ENTRY *List;
//
// Find the NicHandle where UDP4 ServiceBinding Protocol is installed.
//
NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiIp4ProtocolGuid);
if (NicHandle == NULL) {
return EFI_SUCCESS;
}
//
// Retrieve the UDP4 ServiceBinding Protocol.
//
Status = gBS->OpenProtocol (
NicHandle,
&gEfiUdp4ServiceBindingProtocolGuid,
(VOID **) &ServiceBinding,
This->DriverBindingHandle,
NicHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
Udp4Service = UDP4_SERVICE_DATA_FROM_THIS (ServiceBinding);
if (NumberOfChildren != 0) {
//
// NumberOfChildren is not zero, destroy the children instances in ChildHandleBuffer.
//
List = &Udp4Service->ChildrenList;
Context.ServiceBinding = ServiceBinding;
Context.NumberOfChildren = NumberOfChildren;
Context.ChildHandleBuffer = ChildHandleBuffer;
Status = NetDestroyLinkList (
List,
Udp4DestroyChildEntryInHandleBuffer,
&Context,
NULL
);
} else {
gBS->UninstallMultipleProtocolInterfaces (
NicHandle,
&gEfiUdp4ServiceBindingProtocolGuid,
&Udp4Service->ServiceBinding,
NULL
);
Udp4CleanService (Udp4Service);
if (gUdpControllerNameTable != NULL) {
FreeUnicodeStringTable (gUdpControllerNameTable);
gUdpControllerNameTable = NULL;
}
FreePool (Udp4Service);
}
return Status;
}
/**
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[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
@param[in] 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 available to create
the child
@retval other The child handle was not created
**/
EFI_STATUS
EFIAPI
Udp4ServiceBindingCreateChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN EFI_HANDLE *ChildHandle
)
{
EFI_STATUS Status;
UDP4_SERVICE_DATA *Udp4Service;
UDP4_INSTANCE_DATA *Instance;
EFI_TPL OldTpl;
VOID *Ip4;
if ((This == NULL) || (ChildHandle == NULL)) {
return EFI_INVALID_PARAMETER;
}
Udp4Service = UDP4_SERVICE_DATA_FROM_THIS (This);
//
// Allocate the instance private data structure.
//
Instance = AllocateZeroPool (sizeof (UDP4_INSTANCE_DATA));
if (Instance == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Udp4InitInstance (Udp4Service, Instance);
//
// Add an IpInfo for this instance.
//
Instance->IpInfo = IpIoAddIp (Udp4Service->IpIo);
if (Instance->IpInfo == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_ERROR;
}
//
// Install the Udp4Protocol for this instance.
//
Status = gBS->InstallMultipleProtocolInterfaces (
ChildHandle,
&gEfiUdp4ProtocolGuid,
&Instance->Udp4Proto,
NULL
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
Instance->ChildHandle = *ChildHandle;
//
// Open the default Ip4 protocol in the IP_IO BY_CHILD.
//
Status = gBS->OpenProtocol (
Udp4Service->IpIo->ChildHandle,
&gEfiIp4ProtocolGuid,
(VOID **) &Ip4,
gUdp4DriverBinding.DriverBindingHandle,
Instance->ChildHandle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
//
// Open this instance's Ip4 protocol in the IpInfo BY_CHILD.
//
Status = gBS->OpenProtocol (
Instance->IpInfo->ChildHandle,
&gEfiIp4ProtocolGuid,
(VOID **) &Ip4,
gUdp4DriverBinding.DriverBindingHandle,
Instance->ChildHandle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
//
// Link this instance into the service context data and increase the ChildrenNumber.
//
InsertTailList (&Udp4Service->ChildrenList, &Instance->Link);
Udp4Service->ChildrenNumber++;
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
ON_ERROR:
if (Instance->ChildHandle != NULL) {
gBS->UninstallMultipleProtocolInterfaces (
Instance->ChildHandle,
&gEfiUdp4ProtocolGuid,
&Instance->Udp4Proto,
NULL
);
}
if (Instance->IpInfo != NULL) {
IpIoRemoveIp (Udp4Service->IpIo, Instance->IpInfo);
}
Udp4CleanInstance (Instance);
FreePool (Instance);
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[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
@param[in] 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
Udp4ServiceBindingDestroyChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN EFI_HANDLE ChildHandle
)
{
EFI_STATUS Status;
UDP4_SERVICE_DATA *Udp4Service;
EFI_UDP4_PROTOCOL *Udp4Proto;
UDP4_INSTANCE_DATA *Instance;
EFI_TPL OldTpl;
if ((This == NULL) || (ChildHandle == NULL)) {
return EFI_INVALID_PARAMETER;
}
Udp4Service = UDP4_SERVICE_DATA_FROM_THIS (This);
//
// Try to get the Udp4 protocol from the ChildHandle.
//
Status = gBS->OpenProtocol (
ChildHandle,
&gEfiUdp4ProtocolGuid,
(VOID **) &Udp4Proto,
gUdp4DriverBinding.DriverBindingHandle,
ChildHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED;
}
Instance = UDP4_INSTANCE_DATA_FROM_THIS (Udp4Proto);
if (Instance->InDestroy) {
return EFI_SUCCESS;
}
//
// Use the Destroyed flag to avoid the re-entering of the following code.
//
Instance->InDestroy = TRUE;
//
// Close the Ip4 protocol.
//
gBS->CloseProtocol (
Udp4Service->IpIo->ChildHandle,
&gEfiIp4ProtocolGuid,
gUdp4DriverBinding.DriverBindingHandle,
Instance->ChildHandle
);
//
// Close the Ip4 protocol on this instance's IpInfo.
//
gBS->CloseProtocol (
Instance->IpInfo->ChildHandle,
&gEfiIp4ProtocolGuid,
gUdp4DriverBinding.DriverBindingHandle,
Instance->ChildHandle
);
//
// Uninstall the Udp4Protocol previously installed on the ChildHandle.
//
Status = gBS->UninstallMultipleProtocolInterfaces (
ChildHandle,
&gEfiUdp4ProtocolGuid,
(VOID *) &Instance->Udp4Proto,
NULL
);
if (EFI_ERROR (Status)) {
Instance->InDestroy = FALSE;
return Status;
}
//
// Reset the configuration in case the instance's consumer forgets to do this.
//
Udp4Proto->Configure (Udp4Proto, NULL);
//
// Remove the IpInfo this instance consumes.
//
IpIoRemoveIp (Udp4Service->IpIo, Instance->IpInfo);
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
//
// Remove this instance from the service context data's ChildrenList.
//
RemoveEntryList (&Instance->Link);
Udp4Service->ChildrenNumber--;
//
// Clean the instance.
//
Udp4CleanInstance (Instance);
gBS->RestoreTPL (OldTpl);
FreePool (Instance);
return EFI_SUCCESS;
}
/**
This is the declaration of an EFI image entry point. This entry point is
the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including
both device drivers and bus drivers.
The entry point for Udp4 driver which installs the driver binding
and component name protocol on its ImageHandle.
@param[in] ImageHandle The firmware allocated handle for the UEFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
**/
EFI_STATUS
EFIAPI
Udp4DriverEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Install the Udp4DriverBinding and Udp4ComponentName protocols.
//
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gUdp4DriverBinding,
ImageHandle,
&gUdp4ComponentName,
&gUdp4ComponentName2
);
if (!EFI_ERROR (Status)) {
//
// Initialize the UDP random port.
//
mUdp4RandomPort = (UINT16) (((UINT16) NetRandomInitSeed ()) % UDP4_PORT_KNOWN + UDP4_PORT_KNOWN);
}
return Status;
}

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/** @file
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _UDP4_DRIVER_H_
#define _UDP4_DRIVER_H_
#include <Uefi.h>
#include <Library/BaseLib.h>
#include <Library/NetLib.h>
#include <Protocol/DriverBinding.h>
#include <Protocol/ServiceBinding.h>
/**
Test to see if this driver supports ControllerHandle. This service
is called by the EFI boot service ConnectController(). In
order to make drivers as small as possible, there are a few calling
restrictions for this service. ConnectController() must
follow these calling restrictions. If any other agent wishes to call
Supported() it must also follow these calling restrictions.
@param[in] This Protocol instance pointer.
@param[in] ControllerHandle Handle of device to test
@param[in] RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device
@retval EFI_ALREADY_STARTED This driver is already running on this device
@retval other This driver does not support this device
**/
EFI_STATUS
EFIAPI
Udp4DriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
);
/**
Start this driver on ControllerHandle. This service is called by the
EFI boot service ConnectController(). In order to make
drivers as small as possible, there are a few calling restrictions for
this service. ConnectController() must follow these
calling restrictions. If any other agent wishes to call Start() it
must also follow these calling restrictions.
@param[in] This Protocol instance pointer.
@param[in] ControllerHandle Handle of device to bind driver to
@param[in] RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
**/
EFI_STATUS
EFIAPI
Udp4DriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
);
/**
Stop this driver on ControllerHandle. This service is called by the
EFI boot service DisconnectController(). In order to
make drivers as small as possible, there are a few calling
restrictions for this service. DisconnectController()
must follow these calling restrictions. If any other agent wishes
to call Stop() it must also follow these calling restrictions.
@param[in] This Protocol instance pointer.
@param[in] ControllerHandle Handle of device to stop driver on
@param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param[in] ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
Udp4DriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
/**
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[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
@param[in] 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 available to create
the child
@retval other The child handle was not created
**/
EFI_STATUS
EFIAPI
Udp4ServiceBindingCreateChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN EFI_HANDLE *ChildHandle
);
/**
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[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
@param[in] 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
Udp4ServiceBindingDestroyChild (
IN EFI_SERVICE_BINDING_PROTOCOL *This,
IN EFI_HANDLE ChildHandle
);
#endif

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## @file
# This module produces EFI UDP Protocol and EFI UDPv4 Service Binding Protocol.
#
# This module produces EFI UDP(User Datagram Protocol) Protocol upon EFI IPv4
# Protocol, to provide basic UDPv4 I/O services.
#
# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = Udp4Dxe
MODULE_UNI_FILE = Udp4Dxe.uni
FILE_GUID = 6d6963ab-906d-4a65-a7ca-bd40e5d6af2b
MODULE_TYPE = UEFI_DRIVER
VERSION_STRING = 1.0
ENTRY_POINT = Udp4DriverEntryPoint
UNLOAD_IMAGE = NetLibDefaultUnload
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 EBC
#
# DRIVER_BINDING = gUdp4DriverBinding
# COMPONENT_NAME = gUdp4ComponentName
# COMPONENT_NAME2 = gUdp4ComponentName2
#
[Sources]
Udp4Impl.h
Udp4Main.c
ComponentName.c
Udp4Impl.c
Udp4Driver.h
Udp4Driver.c
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
[LibraryClasses]
UefiLib
BaseLib
UefiBootServicesTableLib
UefiDriverEntryPoint
UefiRuntimeServicesTableLib
DebugLib
IpIoLib
NetLib
DpcLib
[Protocols]
gEfiUdp4ServiceBindingProtocolGuid ## BY_START
gEfiIp4ServiceBindingProtocolGuid ## TO_START
gEfiUdp4ProtocolGuid ## BY_START
gEfiIp4ProtocolGuid ## TO_START
[UserExtensions.TianoCore."ExtraFiles"]
Udp4DxeExtra.uni

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// /** @file
// This module produces EFI UDP Protocol and EFI UDPv4 Service Binding Protocol.
//
// This module produces EFI UDP(User Datagram Protocol) Protocol upon EFI IPv4
// Protocol, to provide basic UDPv4 I/O services.
//
// Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
// **/
#string STR_MODULE_ABSTRACT #language en-US "Produces EFI UDP Protocol and EFI UDPv4 Service Binding Protocol"
#string STR_MODULE_DESCRIPTION #language en-US "This module produces EFI UDP(User Datagram Protocol) Protocol upon EFI IPv4 Protocol to provide basic UDPv4 I/O services."

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// /** @file
// Udp4Dxe Localized Strings and Content
//
// Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR>
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
// **/
#string STR_PROPERTIES_MODULE_NAME
#language en-US
"UDP v4 DXE Driver"

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/** @file
EFI UDPv4 protocol implementation.
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _UDP4_IMPL_H_
#define _UDP4_IMPL_H_
#include <Uefi.h>
#include <Protocol/Ip4.h>
#include <Protocol/Udp4.h>
#include <Library/IpIoLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/BaseLib.h>
#include <Library/UefiLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/TimerLib.h>
#include <Library/DpcLib.h>
#include <Library/PrintLib.h>
#include "Udp4Driver.h"
extern EFI_COMPONENT_NAME_PROTOCOL gUdp4ComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gUdp4ComponentName2;
extern EFI_UNICODE_STRING_TABLE *gUdpControllerNameTable;
extern EFI_SERVICE_BINDING_PROTOCOL mUdp4ServiceBinding;
extern EFI_UDP4_PROTOCOL mUdp4Protocol;
extern UINT16 mUdp4RandomPort;
#define ICMP_ERROR_PACKET_LENGTH 8
#define UDP4_TIMEOUT_INTERVAL (50 * TICKS_PER_MS) // 50 milliseconds
#define UDP4_HEADER_SIZE sizeof (EFI_UDP_HEADER)
#define UDP4_MAX_DATA_SIZE 65507
#define UDP4_PORT_KNOWN 1024
#define UDP4_SERVICE_DATA_SIGNATURE SIGNATURE_32('U', 'd', 'p', '4')
#define UDP4_SERVICE_DATA_FROM_THIS(a) \
CR ( \
(a), \
UDP4_SERVICE_DATA, \
ServiceBinding, \
UDP4_SERVICE_DATA_SIGNATURE \
)
typedef struct _UDP4_SERVICE_DATA_ {
UINT32 Signature;
EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;
EFI_HANDLE ImageHandle;
EFI_HANDLE ControllerHandle;
LIST_ENTRY ChildrenList;
UINTN ChildrenNumber;
IP_IO *IpIo;
EFI_EVENT TimeoutEvent;
} UDP4_SERVICE_DATA;
#define UDP4_INSTANCE_DATA_SIGNATURE SIGNATURE_32('U', 'd', 'p', 'I')
#define UDP4_INSTANCE_DATA_FROM_THIS(a) \
CR ( \
(a), \
UDP4_INSTANCE_DATA, \
Udp4Proto, \
UDP4_INSTANCE_DATA_SIGNATURE \
)
typedef struct _UDP4_INSTANCE_DATA_ {
UINT32 Signature;
LIST_ENTRY Link;
UDP4_SERVICE_DATA *Udp4Service;
EFI_UDP4_PROTOCOL Udp4Proto;
EFI_UDP4_CONFIG_DATA ConfigData;
EFI_HANDLE ChildHandle;
BOOLEAN Configured;
BOOLEAN IsNoMapping;
NET_MAP TxTokens;
NET_MAP RxTokens;
NET_MAP McastIps;
LIST_ENTRY RcvdDgramQue;
LIST_ENTRY DeliveredDgramQue;
UINT16 HeadSum;
EFI_STATUS IcmpError;
IP_IO_IP_INFO *IpInfo;
BOOLEAN InDestroy;
} UDP4_INSTANCE_DATA;
typedef struct _UDP4_RXDATA_WRAP_ {
LIST_ENTRY Link;
NET_BUF *Packet;
UINT32 TimeoutTick;
EFI_UDP4_RECEIVE_DATA RxData;
} UDP4_RXDATA_WRAP;
typedef struct {
EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
UINTN NumberOfChildren;
EFI_HANDLE *ChildHandleBuffer;
} UDP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT;
/**
Reads the current operational settings.
The GetModeData() function copies the current operational settings of this EFI
UDPv4 Protocol instance into user-supplied buffers. This function is used
optionally to retrieve the operational mode data of underlying networks or
drivers.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[out] Udp4ConfigData Pointer to the buffer to receive the current configuration data.
@param[out] Ip4ModeData Pointer to the EFI IPv4 Protocol mode data structure.
@param[out] MnpConfigData Pointer to the managed network configuration data structure.
@param[out] SnpModeData Pointer to the simple network mode data structure.
@retval EFI_SUCCESS The mode data was read.
@retval EFI_NOT_STARTED When Udp4ConfigData is queried, no configuration data is
available because this instance has not been started.
@retval EFI_INVALID_PARAMETER This is NULL.
**/
EFI_STATUS
EFIAPI
Udp4GetModeData (
IN EFI_UDP4_PROTOCOL *This,
OUT EFI_UDP4_CONFIG_DATA *Udp4ConfigData OPTIONAL,
OUT EFI_IP4_MODE_DATA *Ip4ModeData OPTIONAL,
OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,
OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL
);
/**
Initializes, changes, or resets the operational parameters for this instance of the EFI UDPv4
Protocol.
The Configure() function is used to do the following:
* Initialize and start this instance of the EFI UDPv4 Protocol.
* Change the filtering rules and operational parameters.
* Reset this instance of the EFI UDPv4 Protocol.
Until these parameters are initialized, no network traffic can be sent or
received by this instance. This instance can be also reset by calling Configure()
with UdpConfigData set to NULL. Once reset, the receiving queue and transmitting
queue are flushed and no traffic is allowed through this instance.
With different parameters in UdpConfigData, Configure() can be used to bind
this instance to specified port.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] UdpConfigData Pointer to the buffer to receive the current configuration data.
@retval EFI_SUCCESS The configuration settings were set, changed, or reset successfully.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,
RARP, etc.) is not finished yet.
@retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:
@retval EFI_ALREADY_STARTED The EFI UDPv4 Protocol instance is already started/configured
and must be stopped/reset before it can be reconfigured.
@retval EFI_ACCESS_DENIED UdpConfigData. AllowDuplicatePort is FALSE
and UdpConfigData.StationPort is already used by
other instance.
@retval EFI_OUT_OF_RESOURCES The EFI UDPv4 Protocol driver cannot allocate memory for this
EFI UDPv4 Protocol instance.
@retval EFI_DEVICE_ERROR An unexpected network or system error occurred and this instance
was not opened.
**/
EFI_STATUS
EFIAPI
Udp4Configure (
IN EFI_UDP4_PROTOCOL *This,
IN EFI_UDP4_CONFIG_DATA *UdpConfigData OPTIONAL
);
/**
Joins and leaves multicast groups.
The Groups() function is used to enable and disable the multicast group
filtering. If the JoinFlag is FALSE and the MulticastAddress is NULL, then all
currently joined groups are left.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] JoinFlag Set to TRUE to join a multicast group. Set to FALSE to leave one
or all multicast groups.
@param[in] MulticastAddress Pointer to multicast group address to join or leave.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_NOT_STARTED The EFI UDPv4 Protocol instance has not been started.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,
RARP, etc.) is not finished yet.
@retval EFI_OUT_OF_RESOURCES Could not allocate resources to join the group.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
- This is NULL.
- JoinFlag is TRUE and MulticastAddress is NULL.
- JoinFlag is TRUE and *MulticastAddress is not
a valid multicast address.
@retval EFI_ALREADY_STARTED The group address is already in the group table (when
JoinFlag is TRUE).
@retval EFI_NOT_FOUND The group address is not in the group table (when JoinFlag is
FALSE).
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
**/
EFI_STATUS
EFIAPI
Udp4Groups (
IN EFI_UDP4_PROTOCOL *This,
IN BOOLEAN JoinFlag,
IN EFI_IPv4_ADDRESS *MulticastAddress OPTIONAL
);
/**
Adds and deletes routing table entries.
The Routes() function adds a route to or deletes a route from the routing table.
Routes are determined by comparing the SubnetAddress with the destination IP
address and arithmetically AND-ing it with the SubnetMask. The gateway address
must be on the same subnet as the configured station address.
The default route is added with SubnetAddress and SubnetMask both set to 0.0.0.0.
The default route matches all destination IP addresses that do not match any
other routes.
A zero GatewayAddress is a nonroute. Packets are sent to the destination IP
address if it can be found in the Address Resolution Protocol (ARP) cache or
on the local subnet. One automatic nonroute entry will be inserted into the
routing table for outgoing packets that are addressed to a local subnet
(gateway address of 0.0.0.0).
Each instance of the EFI UDPv4 Protocol has its own independent routing table.
Instances of the EFI UDPv4 Protocol that use the default IP address will also
have copies of the routing table provided by the EFI_IP4_CONFIG_PROTOCOL. These
copies will be updated automatically whenever the IP driver reconfigures its
instances; as a result, the previous modification to these copies will be lost.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] DeleteRoute Set to TRUE to delete this route from the routing table.
Set to FALSE to add this route to the routing table.
@param[in] SubnetAddress The destination network address that needs to be routed.
@param[in] SubnetMask The subnet mask of SubnetAddress.
@param[in] GatewayAddress The gateway IP address for this route.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_NOT_STARTED The EFI UDPv4 Protocol instance has not been started.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,
- RARP, etc.) is not finished yet.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
@retval EFI_OUT_OF_RESOURCES Could not add the entry to the routing table.
@retval EFI_NOT_FOUND This route is not in the routing table.
@retval EFI_ACCESS_DENIED The route is already defined in the routing table.
**/
EFI_STATUS
EFIAPI
Udp4Routes (
IN EFI_UDP4_PROTOCOL *This,
IN BOOLEAN DeleteRoute,
IN EFI_IPv4_ADDRESS *SubnetAddress,
IN EFI_IPv4_ADDRESS *SubnetMask,
IN EFI_IPv4_ADDRESS *GatewayAddress
);
/**
Queues outgoing data packets into the transmit queue.
The Transmit() function places a sending request to this instance of the EFI
UDPv4 Protocol, alongside the transmit data that was filled by the user. Whenever
the packet in the token is sent out or some errors occur, the Token.Event will
be signaled and Token.Status is updated. Providing a proper notification function
and context for the event will enable the user to receive the notification and
transmitting status.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] Token Pointer to the completion token that will be placed into the
transmit queue.
@retval EFI_SUCCESS The data has been queued for transmission.
@retval EFI_NOT_STARTED This EFI UDPv4 Protocol instance has not been started.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,
RARP, etc.) is not finished yet.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
@retval EFI_ACCESS_DENIED The transmit completion token with the same
Token.Event was already in the transmit queue.
@retval EFI_NOT_READY The completion token could not be queued because the
transmit queue is full.
@retval EFI_OUT_OF_RESOURCES Could not queue the transmit data.
@retval EFI_NOT_FOUND There is no route to the destination network or address.
@retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP packet
size. Or the length of the IP header + UDP header + data
length is greater than MTU if DoNotFragment is TRUE.
**/
EFI_STATUS
EFIAPI
Udp4Transmit (
IN EFI_UDP4_PROTOCOL *This,
IN EFI_UDP4_COMPLETION_TOKEN *Token
);
/**
Places an asynchronous receive request into the receiving queue.
The Receive() function places a completion token into the receive packet queue.
This function is always asynchronous.
The caller must fill in the Token.Event field in the completion token, and this
field cannot be NULL. When the receive operation completes, the EFI UDPv4 Protocol
driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event
is signaled. Providing a proper notification function and context for the event
will enable the user to receive the notification and receiving status. That
notification function is guaranteed to not be re-entered.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] Token Pointer to a token that is associated with
the receive data descriptor.
@retval EFI_SUCCESS The receive completion token was cached.
@retval EFI_NOT_STARTED This EFI UDPv4 Protocol instance has not been started.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, RARP, etc.)
is not finished yet.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
@retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of system
resources (usually memory).
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
@retval EFI_ACCESS_DENIED A receive completion token with the same Token.Event was already in
the receive queue.
@retval EFI_NOT_READY The receive request could not be queued because the receive queue is full.
**/
EFI_STATUS
EFIAPI
Udp4Receive (
IN EFI_UDP4_PROTOCOL *This,
IN EFI_UDP4_COMPLETION_TOKEN *Token
);
/**
Aborts an asynchronous transmit or receive request.
The Cancel() function is used to abort a pending transmit or receive request.
If the token is in the transmit or receive request queues, after calling this
function, Token.Status will be set to EFI_ABORTED and then Token.Event will be
signaled. If the token is not in one of the queues, which usually means that
the asynchronous operation has completed, this function will not signal the
token and EFI_NOT_FOUND is returned.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] Token Pointer to a token that has been issued by
EFI_UDP4_PROTOCOL.Transmit() or
EFI_UDP4_PROTOCOL.Receive().If NULL, all pending
tokens are aborted.
@retval EFI_SUCCESS The asynchronous I/O request was aborted and Token.Event
was signaled. When Token is NULL, all pending requests are
aborted and their events are signaled.
@retval EFI_INVALID_PARAMETER This is NULL.
@retval EFI_NOT_STARTED This instance has not been started.
@retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,
RARP, etc.) is not finished yet.
@retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O request was
not found in the transmit or receive queue. It has either completed
or was not issued by Transmit() and Receive().
**/
EFI_STATUS
EFIAPI
Udp4Cancel (
IN EFI_UDP4_PROTOCOL *This,
IN EFI_UDP4_COMPLETION_TOKEN *Token OPTIONAL
);
/**
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 Pointer to the EFI_UDP4_PROTOCOL instance.
@retval EFI_SUCCESS Incoming or outgoing data was processed.
@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.
**/
EFI_STATUS
EFIAPI
Udp4Poll (
IN EFI_UDP4_PROTOCOL *This
);
/**
Create the Udp service context data.
@param[in, out] Udp4Service Pointer to the UDP4_SERVICE_DATA.
@param[in] ImageHandle The image handle of this udp4 driver.
@param[in] ControllerHandle The controller handle this udp4 driver binds on.
@retval EFI_SUCCESS The udp4 service context data is created and
initialized.
@retval EFI_OUT_OF_RESOURCES Cannot allocate memory.
@retval other Other error occurs.
**/
EFI_STATUS
Udp4CreateService (
IN OUT UDP4_SERVICE_DATA *Udp4Service,
IN EFI_HANDLE ImageHandle,
IN EFI_HANDLE ControllerHandle
);
/**
Clean the Udp service context data.
@param[in] Udp4Service Pointer to the UDP4_SERVICE_DATA.
**/
VOID
Udp4CleanService (
IN UDP4_SERVICE_DATA *Udp4Service
);
/**
This function intializes the new created udp instance.
@param[in] Udp4Service Pointer to the UDP4_SERVICE_DATA.
@param[in, out] Instance Pointer to the un-initialized UDP4_INSTANCE_DATA.
**/
VOID
Udp4InitInstance (
IN UDP4_SERVICE_DATA *Udp4Service,
IN OUT UDP4_INSTANCE_DATA *Instance
);
/**
This function cleans the udp instance.
@param[in] Instance Pointer to the UDP4_INSTANCE_DATA to clean.
**/
VOID
Udp4CleanInstance (
IN UDP4_INSTANCE_DATA *Instance
);
/**
This function tries to bind the udp instance according to the configured port
allocation strategy.
@param[in] InstanceList Pointer to the head of the list linking the udp
instances.
@param[in, out] ConfigData Pointer to the ConfigData of the instance to be
bound. ConfigData->StationPort will be assigned
with an available port value on success.
@retval EFI_SUCCESS The bound operation is completed successfully.
@retval EFI_ACCESS_DENIED The <Address, Port> specified by the ConfigData is
already used by other instance.
@retval EFI_OUT_OF_RESOURCES No available port resources.
**/
EFI_STATUS
Udp4Bind (
IN LIST_ENTRY *InstanceList,
IN OUT EFI_UDP4_CONFIG_DATA *ConfigData
);
/**
This function is used to check whether the NewConfigData has any un-reconfigurable
parameters changed compared to the OldConfigData.
@param[in] OldConfigData Pointer to the current ConfigData the udp instance
uses.
@param[in] NewConfigData Pointer to the new ConfigData.
@retval TRUE The instance is reconfigurable.
@retval FALSE Otherwise.
**/
BOOLEAN
Udp4IsReconfigurable (
IN EFI_UDP4_CONFIG_DATA *OldConfigData,
IN EFI_UDP4_CONFIG_DATA *NewConfigData
);
/**
This function builds the Ip4 configdata from the Udp4ConfigData.
@param[in] Udp4ConfigData Pointer to the EFI_UDP4_CONFIG_DATA.
@param[in, out] Ip4ConfigData Pointer to the EFI_IP4_CONFIG_DATA.
**/
VOID
Udp4BuildIp4ConfigData (
IN EFI_UDP4_CONFIG_DATA *Udp4ConfigData,
IN OUT EFI_IP4_CONFIG_DATA *Ip4ConfigData
);
/**
This function validates the TxToken, it returns the error code according to the spec.
@param[in] Instance Pointer to the udp instance context data.
@param[in] TxToken Pointer to the token to be checked.
@retval EFI_SUCCESS The TxToken is valid.
@retval EFI_INVALID_PARAMETER One or more of the following are TRUE: This is
NULL. Token is NULL. Token.Event is NULL.
Token.Packet.TxData is NULL.
Token.Packet.TxData.FragmentCount is zero.
Token.Packet.TxData.DataLength is not equal to the
sum of fragment lengths. One or more of the
Token.Packet.TxData.FragmentTable[].
FragmentLength fields is zero. One or more of the
Token.Packet.TxData.FragmentTable[].
FragmentBuffer fields is NULL.
Token.Packet.TxData. GatewayAddress is not a
unicast IPv4 address if it is not NULL. One or
more IPv4 addresses in Token.Packet.TxData.
UdpSessionData are not valid unicast IPv4
addresses if the UdpSessionData is not NULL.
@retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP
packet size.
**/
EFI_STATUS
Udp4ValidateTxToken (
IN UDP4_INSTANCE_DATA *Instance,
IN EFI_UDP4_COMPLETION_TOKEN *TxToken
);
/**
This function checks whether the specified Token duplicates with the one in the Map.
@param[in] Map Pointer to the NET_MAP.
@param[in] Item Pointer to the NET_MAP_ITEM contain the pointer to
the Token.
@param[in] Context Pointer to the Token to be checked.
@retval EFI_SUCCESS The Token specified by Context differs from the
one in the Item.
@retval EFI_ACCESS_DENIED The Token duplicates with the one in the Item.
**/
EFI_STATUS
EFIAPI
Udp4TokenExist (
IN NET_MAP *Map,
IN NET_MAP_ITEM *Item,
IN VOID *Context
);
/**
This function calculates the checksum for the Packet, utilizing the pre-calculated
pseudo HeadSum to reduce some overhead.
@param[in] Packet Pointer to the NET_BUF contains the udp datagram.
@param[in] HeadSum Checksum of the pseudo header execpt the length
field.
@retval The 16-bit checksum of this udp datagram.
**/
UINT16
Udp4Checksum (
IN NET_BUF *Packet,
IN UINT16 HeadSum
);
/**
This function removes the specified Token from the TokenMap.
@param[in, out] TokenMap Pointer to the NET_MAP containing the tokens.
@param[in] Token Pointer to the Token to be removed.
@retval EFI_SUCCESS The specified Token is removed from the TokenMap.
@retval EFI_NOT_FOUND The specified Token is not found in the TokenMap.
**/
EFI_STATUS
Udp4RemoveToken (
IN OUT NET_MAP *TokenMap,
IN EFI_UDP4_COMPLETION_TOKEN *Token
);
/**
This function removes the multicast group specified by Arg from the Map.
@param[in, out] Map Pointer to the NET_MAP.
@param[in] Item Pointer to the NET_MAP_ITEM.
@param[in] Arg Pointer to the Arg, it's the pointer to a
multicast IPv4 Address.
@retval EFI_SUCCESS The multicast address is removed.
@retval EFI_ABORTED The specified multicast address is removed and the
Arg is not NULL.
**/
EFI_STATUS
EFIAPI
Udp4LeaveGroup (
IN OUT NET_MAP *Map,
IN NET_MAP_ITEM *Item,
IN VOID *Arg OPTIONAL
);
/**
This function removes all the Wrap datas in the RcvdDgramQue.
@param[in] Instance Pointer to the udp instance context data.
**/
VOID
Udp4FlushRcvdDgram (
IN UDP4_INSTANCE_DATA *Instance
);
/**
Cancel Udp4 tokens from the Udp4 instance.
@param[in] Instance Pointer to the udp instance context data.
@param[in] Token Pointer to the token to be canceled, if NULL, all
tokens in this instance will be cancelled.
@retval EFI_SUCCESS The Token is cancelled.
@retval EFI_NOT_FOUND The Token is not found.
**/
EFI_STATUS
Udp4InstanceCancelToken (
IN UDP4_INSTANCE_DATA *Instance,
IN EFI_UDP4_COMPLETION_TOKEN *Token OPTIONAL
);
/**
This function delivers the received datagrams for the specified instance.
@param[in] Instance Pointer to the instance context data.
**/
VOID
Udp4InstanceDeliverDgram (
IN UDP4_INSTANCE_DATA *Instance
);
/**
This function reports the received ICMP error.
@param[in] Instance Pointer to the udp instance context data.
**/
VOID
Udp4ReportIcmpError (
IN UDP4_INSTANCE_DATA *Instance
);
/**
This function is a dummy ext-free function for the NET_BUF created for the output
udp datagram.
@param[in] Context Pointer to the context data.
**/
VOID
EFIAPI
Udp4NetVectorExtFree (
VOID *Context
);
#endif

View File

@@ -0,0 +1,902 @@
/** @file
(C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Udp4Impl.h"
EFI_UDP4_PROTOCOL mUdp4Protocol = {
Udp4GetModeData,
Udp4Configure,
Udp4Groups,
Udp4Routes,
Udp4Transmit,
Udp4Receive,
Udp4Cancel,
Udp4Poll
};
/**
Reads the current operational settings.
The GetModeData() function copies the current operational settings of this EFI
UDPv4 Protocol instance into user-supplied buffers. This function is used
optionally to retrieve the operational mode data of underlying networks or
drivers.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[out] Udp4ConfigData Pointer to the buffer to receive the current configuration data.
@param[out] Ip4ModeData Pointer to the EFI IPv4 Protocol mode data structure.
@param[out] MnpConfigData Pointer to the managed network configuration data structure.
@param[out] SnpModeData Pointer to the simple network mode data structure.
@retval EFI_SUCCESS The mode data was read.
@retval EFI_NOT_STARTED When Udp4ConfigData is queried, no configuration data is
available because this instance has not been started.
@retval EFI_INVALID_PARAMETER This is NULL.
**/
EFI_STATUS
EFIAPI
Udp4GetModeData (
IN EFI_UDP4_PROTOCOL *This,
OUT EFI_UDP4_CONFIG_DATA *Udp4ConfigData OPTIONAL,
OUT EFI_IP4_MODE_DATA *Ip4ModeData OPTIONAL,
OUT EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData OPTIONAL,
OUT EFI_SIMPLE_NETWORK_MODE *SnpModeData OPTIONAL
)
{
UDP4_INSTANCE_DATA *Instance;
EFI_IP4_PROTOCOL *Ip;
EFI_TPL OldTpl;
EFI_STATUS Status;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Instance = UDP4_INSTANCE_DATA_FROM_THIS (This);
if (!Instance->Configured && (Udp4ConfigData != NULL)) {
return EFI_NOT_STARTED;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
if (Udp4ConfigData != NULL) {
//
// Set the Udp4ConfigData.
//
CopyMem (Udp4ConfigData, &Instance->ConfigData, sizeof (*Udp4ConfigData));
}
Ip = Instance->IpInfo->Ip.Ip4;
//
// Get the underlying Ip4ModeData, MnpConfigData and SnpModeData.
//
Status = Ip->GetModeData (Ip, Ip4ModeData, MnpConfigData, SnpModeData);
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Initializes, changes, or resets the operational parameters for this instance of the EFI UDPv4
Protocol.
The Configure() function is used to do the following:
* Initialize and start this instance of the EFI UDPv4 Protocol.
* Change the filtering rules and operational parameters.
* Reset this instance of the EFI UDPv4 Protocol.
Until these parameters are initialized, no network traffic can be sent or
received by this instance. This instance can be also reset by calling Configure()
with UdpConfigData set to NULL. Once reset, the receiving queue and transmitting
queue are flushed and no traffic is allowed through this instance.
With different parameters in UdpConfigData, Configure() can be used to bind
this instance to specified port.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] UdpConfigData Pointer to the buffer to receive the current configuration data.
@retval EFI_SUCCESS The configuration settings were set, changed, or reset successfully.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,
RARP, etc.) is not finished yet.
@retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:
@retval EFI_ALREADY_STARTED The EFI UDPv4 Protocol instance is already started/configured
and must be stopped/reset before it can be reconfigured.
@retval EFI_ACCESS_DENIED UdpConfigData. AllowDuplicatePort is FALSE
and UdpConfigData.StationPort is already used by
other instance.
@retval EFI_OUT_OF_RESOURCES The EFI UDPv4 Protocol driver cannot allocate memory for this
EFI UDPv4 Protocol instance.
@retval EFI_DEVICE_ERROR An unexpected network or system error occurred and this instance
was not opened.
**/
EFI_STATUS
EFIAPI
Udp4Configure (
IN EFI_UDP4_PROTOCOL *This,
IN EFI_UDP4_CONFIG_DATA *UdpConfigData OPTIONAL
)
{
EFI_STATUS Status;
UDP4_INSTANCE_DATA *Instance;
UDP4_SERVICE_DATA *Udp4Service;
EFI_TPL OldTpl;
IP4_ADDR StationAddress;
IP4_ADDR SubnetMask;
IP4_ADDR RemoteAddress;
EFI_IP4_CONFIG_DATA Ip4ConfigData;
IP4_ADDR LocalAddr;
IP4_ADDR RemoteAddr;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Instance = UDP4_INSTANCE_DATA_FROM_THIS (This);
if (!Instance->Configured && (UdpConfigData == NULL)) {
return EFI_SUCCESS;
}
Udp4Service = Instance->Udp4Service;
Status = EFI_SUCCESS;
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
if (UdpConfigData != NULL) {
CopyMem (&StationAddress, &UdpConfigData->StationAddress, sizeof (IP4_ADDR));
CopyMem (&SubnetMask, &UdpConfigData->SubnetMask, sizeof (IP4_ADDR));
CopyMem (&RemoteAddress, &UdpConfigData->RemoteAddress, sizeof (IP4_ADDR));
StationAddress = NTOHL (StationAddress);
SubnetMask = NTOHL (SubnetMask);
RemoteAddress = NTOHL (RemoteAddress);
if (!UdpConfigData->UseDefaultAddress &&
(!IP4_IS_VALID_NETMASK (SubnetMask) ||
!((StationAddress == 0) || (SubnetMask != 0 && NetIp4IsUnicast (StationAddress, SubnetMask))) ||
IP4_IS_LOCAL_BROADCAST (RemoteAddress))) {
//
// Don't use default address, and subnet mask is invalid or StationAddress is not
// a valid unicast IPv4 address or RemoteAddress is not a valid unicast IPv4 address
// if it is not 0.
//
Status = EFI_INVALID_PARAMETER;
goto ON_EXIT;
}
if (Instance->Configured) {
//
// The instance is already configured, try to do the re-configuration.
//
if (!Udp4IsReconfigurable (&Instance->ConfigData, UdpConfigData)) {
//
// If the new configuration data wants to change some unreconfigurable
// settings, return EFI_ALREADY_STARTED.
//
Status = EFI_ALREADY_STARTED;
goto ON_EXIT;
}
//
// Save the reconfigurable parameters.
//
Instance->ConfigData.TypeOfService = UdpConfigData->TypeOfService;
Instance->ConfigData.TimeToLive = UdpConfigData->TimeToLive;
Instance->ConfigData.DoNotFragment = UdpConfigData->DoNotFragment;
Instance->ConfigData.ReceiveTimeout = UdpConfigData->ReceiveTimeout;
Instance->ConfigData.TransmitTimeout = UdpConfigData->TransmitTimeout;
} else {
//
// Construct the Ip configuration data from the UdpConfigData.
//
Udp4BuildIp4ConfigData (UdpConfigData, &Ip4ConfigData);
//
// Configure the Ip instance wrapped in the IpInfo.
//
Status = IpIoConfigIp (Instance->IpInfo, &Ip4ConfigData);
if (EFI_ERROR (Status)) {
if (Status == EFI_NO_MAPPING) {
Instance->IsNoMapping = TRUE;
}
goto ON_EXIT;
}
Instance->IsNoMapping = FALSE;
//
// Save the configuration data.
//
CopyMem (&Instance->ConfigData, UdpConfigData, sizeof (Instance->ConfigData));
IP4_COPY_ADDRESS (&Instance->ConfigData.StationAddress, &Ip4ConfigData.StationAddress);
IP4_COPY_ADDRESS (&Instance->ConfigData.SubnetMask, &Ip4ConfigData.SubnetMask);
//
// Try to allocate the required port resource.
//
Status = Udp4Bind (&Udp4Service->ChildrenList, &Instance->ConfigData);
if (EFI_ERROR (Status)) {
//
// Reset the ip instance if bind fails.
//
IpIoConfigIp (Instance->IpInfo, NULL);
goto ON_EXIT;
}
//
// Pre calculate the checksum for the pseudo head, ignore the UDP length first.
//
CopyMem (&LocalAddr, &Instance->ConfigData.StationAddress, sizeof (IP4_ADDR));
CopyMem (&RemoteAddr, &Instance->ConfigData.RemoteAddress, sizeof (IP4_ADDR));
Instance->HeadSum = NetPseudoHeadChecksum (
LocalAddr,
RemoteAddr,
EFI_IP_PROTO_UDP,
0
);
Instance->Configured = TRUE;
}
} else {
//
// UdpConfigData is NULL, reset the instance.
//
Instance->Configured = FALSE;
Instance->IsNoMapping = FALSE;
//
// Reset the Ip instance wrapped in the IpInfo.
//
IpIoConfigIp (Instance->IpInfo, NULL);
//
// Cancel all the user tokens.
//
Instance->Udp4Proto.Cancel (&Instance->Udp4Proto, NULL);
//
// Remove the buffered RxData for this instance.
//
Udp4FlushRcvdDgram (Instance);
ASSERT (IsListEmpty (&Instance->DeliveredDgramQue));
}
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Joins and leaves multicast groups.
The Groups() function is used to enable and disable the multicast group
filtering. If the JoinFlag is FALSE and the MulticastAddress is NULL, then all
currently joined groups are left.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] JoinFlag Set to TRUE to join a multicast group. Set to FALSE to leave one
or all multicast groups.
@param[in] MulticastAddress Pointer to multicast group address to join or leave.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_NOT_STARTED The EFI UDPv4 Protocol instance has not been started.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,
RARP, etc.) is not finished yet.
@retval EFI_OUT_OF_RESOURCES Could not allocate resources to join the group.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
- This is NULL.
- JoinFlag is TRUE and MulticastAddress is NULL.
- JoinFlag is TRUE and *MulticastAddress is not
a valid multicast address.
@retval EFI_ALREADY_STARTED The group address is already in the group table (when
JoinFlag is TRUE).
@retval EFI_NOT_FOUND The group address is not in the group table (when JoinFlag is
FALSE).
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
**/
EFI_STATUS
EFIAPI
Udp4Groups (
IN EFI_UDP4_PROTOCOL *This,
IN BOOLEAN JoinFlag,
IN EFI_IPv4_ADDRESS *MulticastAddress OPTIONAL
)
{
EFI_STATUS Status;
UDP4_INSTANCE_DATA *Instance;
EFI_IP4_PROTOCOL *Ip;
EFI_TPL OldTpl;
IP4_ADDR McastIp;
if ((This == NULL) || (JoinFlag && (MulticastAddress == NULL))) {
return EFI_INVALID_PARAMETER;
}
McastIp = 0;
if (JoinFlag) {
CopyMem (&McastIp, MulticastAddress, sizeof (IP4_ADDR));
if (!IP4_IS_MULTICAST (NTOHL (McastIp))) {
return EFI_INVALID_PARAMETER;
}
}
Instance = UDP4_INSTANCE_DATA_FROM_THIS (This);
if (Instance->IsNoMapping) {
return EFI_NO_MAPPING;
}
if (!Instance->Configured) {
return EFI_NOT_STARTED;
}
Ip = Instance->IpInfo->Ip.Ip4;
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
//
// Invoke the Ip instance the Udp4 instance consumes to do the group operation.
//
Status = Ip->Groups (Ip, JoinFlag, MulticastAddress);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Keep a local copy of the configured multicast IPs because IpIo receives
// datagrams from the 0 station address IP instance and then UDP delivers to
// the matched instance. This copy of multicast IPs is used to avoid receive
// the mutlicast datagrams destined to multicast IPs the other instances configured.
//
if (JoinFlag) {
NetMapInsertTail (&Instance->McastIps, (VOID *) (UINTN) McastIp, NULL);
} else {
NetMapIterate (&Instance->McastIps, Udp4LeaveGroup, MulticastAddress);
}
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Adds and deletes routing table entries.
The Routes() function adds a route to or deletes a route from the routing table.
Routes are determined by comparing the SubnetAddress with the destination IP
address and arithmetically AND-ing it with the SubnetMask. The gateway address
must be on the same subnet as the configured station address.
The default route is added with SubnetAddress and SubnetMask both set to 0.0.0.0.
The default route matches all destination IP addresses that do not match any
other routes.
A zero GatewayAddress is a nonroute. Packets are sent to the destination IP
address if it can be found in the Address Resolution Protocol (ARP) cache or
on the local subnet. One automatic nonroute entry will be inserted into the
routing table for outgoing packets that are addressed to a local subnet
(gateway address of 0.0.0.0).
Each instance of the EFI UDPv4 Protocol has its own independent routing table.
Instances of the EFI UDPv4 Protocol that use the default IP address will also
have copies of the routing table provided by the EFI_IP4_CONFIG_PROTOCOL. These
copies will be updated automatically whenever the IP driver reconfigures its
instances; as a result, the previous modification to these copies will be lost.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] DeleteRoute Set to TRUE to delete this route from the routing table.
Set to FALSE to add this route to the routing table.
@param[in] SubnetAddress The destination network address that needs to be routed.
@param[in] SubnetMask The subnet mask of SubnetAddress.
@param[in] GatewayAddress The gateway IP address for this route.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_NOT_STARTED The EFI UDPv4 Protocol instance has not been started.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,
- RARP, etc.) is not finished yet.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
@retval EFI_OUT_OF_RESOURCES Could not add the entry to the routing table.
@retval EFI_NOT_FOUND This route is not in the routing table.
@retval EFI_ACCESS_DENIED The route is already defined in the routing table.
**/
EFI_STATUS
EFIAPI
Udp4Routes (
IN EFI_UDP4_PROTOCOL *This,
IN BOOLEAN DeleteRoute,
IN EFI_IPv4_ADDRESS *SubnetAddress,
IN EFI_IPv4_ADDRESS *SubnetMask,
IN EFI_IPv4_ADDRESS *GatewayAddress
)
{
UDP4_INSTANCE_DATA *Instance;
EFI_IP4_PROTOCOL *Ip;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Instance = UDP4_INSTANCE_DATA_FROM_THIS (This);
if (Instance->IsNoMapping) {
return EFI_NO_MAPPING;
}
if (!Instance->Configured) {
return EFI_NOT_STARTED;
}
Ip = Instance->IpInfo->Ip.Ip4;
//
// Invoke the Ip instance the Udp4 instance consumes to do the actual operation.
//
return Ip->Routes (Ip, DeleteRoute, SubnetAddress, SubnetMask, GatewayAddress);
}
/**
Queues outgoing data packets into the transmit queue.
The Transmit() function places a sending request to this instance of the EFI
UDPv4 Protocol, alongside the transmit data that was filled by the user. Whenever
the packet in the token is sent out or some errors occur, the Token.Event will
be signaled and Token.Status is updated. Providing a proper notification function
and context for the event will enable the user to receive the notification and
transmitting status.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] Token Pointer to the completion token that will be placed into the
transmit queue.
@retval EFI_SUCCESS The data has been queued for transmission.
@retval EFI_NOT_STARTED This EFI UDPv4 Protocol instance has not been started.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP,
RARP, etc.) is not finished yet.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
@retval EFI_ACCESS_DENIED The transmit completion token with the same
Token.Event was already in the transmit queue.
@retval EFI_NOT_READY The completion token could not be queued because the
transmit queue is full.
@retval EFI_OUT_OF_RESOURCES Could not queue the transmit data.
@retval EFI_NOT_FOUND There is no route to the destination network or address.
@retval EFI_BAD_BUFFER_SIZE The data length is greater than the maximum UDP packet
size. Or the length of the IP header + UDP header + data
length is greater than MTU if DoNotFragment is TRUE.
**/
EFI_STATUS
EFIAPI
Udp4Transmit (
IN EFI_UDP4_PROTOCOL *This,
IN EFI_UDP4_COMPLETION_TOKEN *Token
)
{
EFI_STATUS Status;
UDP4_INSTANCE_DATA *Instance;
EFI_TPL OldTpl;
NET_BUF *Packet;
EFI_UDP_HEADER *Udp4Header;
EFI_UDP4_CONFIG_DATA *ConfigData;
IP4_ADDR Source;
IP4_ADDR Destination;
EFI_UDP4_TRANSMIT_DATA *TxData;
EFI_UDP4_SESSION_DATA *UdpSessionData;
UDP4_SERVICE_DATA *Udp4Service;
IP_IO_OVERRIDE Override;
UINT16 HeadSum;
EFI_IP_ADDRESS IpDestAddr;
if ((This == NULL) || (Token == NULL)) {
return EFI_INVALID_PARAMETER;
}
Instance = UDP4_INSTANCE_DATA_FROM_THIS (This);
if (Instance->IsNoMapping) {
return EFI_NO_MAPPING;
}
if (!Instance->Configured) {
return EFI_NOT_STARTED;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
//
// Validate the Token, if the token is invalid return the error code.
//
Status = Udp4ValidateTxToken (Instance, Token);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
if (EFI_ERROR (NetMapIterate (&Instance->TxTokens, Udp4TokenExist, Token)) ||
EFI_ERROR (NetMapIterate (&Instance->RxTokens, Udp4TokenExist, Token))) {
//
// Try to find a duplicate token in the two token maps, if found, return
// EFI_ACCESS_DENIED.
//
Status = EFI_ACCESS_DENIED;
goto ON_EXIT;
}
TxData = Token->Packet.TxData;
//
// Create a net buffer to hold the user buffer and the udp header.
//
Packet = NetbufFromExt (
(NET_FRAGMENT *)TxData->FragmentTable,
TxData->FragmentCount,
UDP4_HEADER_SIZE,
0,
Udp4NetVectorExtFree,
NULL
);
if (Packet == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
//
// Store the IpIo in ProtoData.
//
Udp4Service = Instance->Udp4Service;
*((UINTN *) &Packet->ProtoData[0]) = (UINTN) (Udp4Service->IpIo);
Udp4Header = (EFI_UDP_HEADER *) NetbufAllocSpace (Packet, UDP4_HEADER_SIZE, TRUE);
ASSERT (Udp4Header != NULL);
ConfigData = &Instance->ConfigData;
//
// Fill the udp header.
//
Udp4Header->SrcPort = HTONS (ConfigData->StationPort);
Udp4Header->DstPort = HTONS (ConfigData->RemotePort);
Udp4Header->Length = HTONS ((UINT16) Packet->TotalSize);
Udp4Header->Checksum = 0;
UdpSessionData = TxData->UdpSessionData;
IP4_COPY_ADDRESS (&Override.Ip4OverrideData.SourceAddress, &ConfigData->StationAddress);
if (UdpSessionData != NULL) {
//
// Set the SourceAddress, SrcPort and Destination according to the specified
// UdpSessionData.
//
if (!EFI_IP4_EQUAL (&UdpSessionData->SourceAddress, &mZeroIp4Addr)) {
IP4_COPY_ADDRESS (&Override.Ip4OverrideData.SourceAddress, &UdpSessionData->SourceAddress);
}
if (UdpSessionData->SourcePort != 0) {
Udp4Header->SrcPort = HTONS (UdpSessionData->SourcePort);
}
if (UdpSessionData->DestinationPort != 0) {
Udp4Header->DstPort = HTONS (UdpSessionData->DestinationPort);
}
CopyMem (&Source, &Override.Ip4OverrideData.SourceAddress, sizeof (IP4_ADDR));
CopyMem (&Destination, &UdpSessionData->DestinationAddress, sizeof (IP4_ADDR));
//
// calculate the pseudo head checksum using the overridden parameters.
//
HeadSum = NetPseudoHeadChecksum (
Source,
Destination,
EFI_IP_PROTO_UDP,
0
);
} else {
//
// UdpSessionData is NULL, use the address and port information previously configured.
//
CopyMem (&Destination, &ConfigData->RemoteAddress, sizeof (IP4_ADDR));
HeadSum = Instance->HeadSum;
}
//
// calculate the checksum.
//
Udp4Header->Checksum = Udp4Checksum (Packet, HeadSum);
if (Udp4Header->Checksum == 0) {
//
// If the calculated checksum is 0, fill the Checksum field with all ones.
//
Udp4Header->Checksum = 0xffff;
}
//
// Fill the IpIo Override data.
//
if (TxData->GatewayAddress != NULL) {
IP4_COPY_ADDRESS (&Override.Ip4OverrideData.GatewayAddress, TxData->GatewayAddress);
} else {
ZeroMem (&Override.Ip4OverrideData.GatewayAddress, sizeof (EFI_IPv4_ADDRESS));
}
Override.Ip4OverrideData.Protocol = EFI_IP_PROTO_UDP;
Override.Ip4OverrideData.TypeOfService = ConfigData->TypeOfService;
Override.Ip4OverrideData.TimeToLive = ConfigData->TimeToLive;
Override.Ip4OverrideData.DoNotFragment = ConfigData->DoNotFragment;
//
// Save the token into the TxToken map.
//
Status = NetMapInsertTail (&Instance->TxTokens, Token, Packet);
if (EFI_ERROR (Status)) {
goto FREE_PACKET;
}
//
// Send out this datagram through IpIo.
//
IpDestAddr.Addr[0] = Destination;
Status = IpIoSend (
Udp4Service->IpIo,
Packet,
Instance->IpInfo,
Instance,
Token,
&IpDestAddr,
&Override
);
if (EFI_ERROR (Status)) {
//
// Remove this token from the TxTokens.
//
Udp4RemoveToken (&Instance->TxTokens, Token);
}
FREE_PACKET:
NetbufFree (Packet);
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Places an asynchronous receive request into the receiving queue.
The Receive() function places a completion token into the receive packet queue.
This function is always asynchronous.
The caller must fill in the Token.Event field in the completion token, and this
field cannot be NULL. When the receive operation completes, the EFI UDPv4 Protocol
driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event
is signaled. Providing a proper notification function and context for the event
will enable the user to receive the notification and receiving status. That
notification function is guaranteed to not be re-entered.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] Token Pointer to a token that is associated with
the receive data descriptor.
@retval EFI_SUCCESS The receive completion token was cached.
@retval EFI_NOT_STARTED This EFI UDPv4 Protocol instance has not been started.
@retval EFI_NO_MAPPING When using a default address, configuration (DHCP, BOOTP, RARP, etc.)
is not finished yet.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
@retval EFI_OUT_OF_RESOURCES The receive completion token could not be queued due to a lack of system
resources (usually memory).
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
@retval EFI_ACCESS_DENIED A receive completion token with the same Token.Event was already in
the receive queue.
@retval EFI_NOT_READY The receive request could not be queued because the receive queue is full.
**/
EFI_STATUS
EFIAPI
Udp4Receive (
IN EFI_UDP4_PROTOCOL *This,
IN EFI_UDP4_COMPLETION_TOKEN *Token
)
{
EFI_STATUS Status;
UDP4_INSTANCE_DATA *Instance;
EFI_TPL OldTpl;
if ((This == NULL) || (Token == NULL) || (Token->Event == NULL)) {
return EFI_INVALID_PARAMETER;
}
Instance = UDP4_INSTANCE_DATA_FROM_THIS (This);
if (Instance->IsNoMapping) {
return EFI_NO_MAPPING;
}
if (!Instance->Configured) {
return EFI_NOT_STARTED;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
if (EFI_ERROR (NetMapIterate (&Instance->RxTokens, Udp4TokenExist, Token))||
EFI_ERROR (NetMapIterate (&Instance->TxTokens, Udp4TokenExist, Token))) {
//
// Return EFI_ACCESS_DENIED if the specified token is already in the TxTokens or
// RxTokens map.
//
Status = EFI_ACCESS_DENIED;
goto ON_EXIT;
}
Token->Packet.RxData = NULL;
//
// Save the token into the RxTokens map.
//
Status = NetMapInsertTail (&Instance->RxTokens, Token, NULL);
if (EFI_ERROR (Status)) {
Status = EFI_NOT_READY;
goto ON_EXIT;
}
//
// If there is an icmp error, report it.
//
Udp4ReportIcmpError (Instance);
//
// Try to deliver the received datagrams.
//
Udp4InstanceDeliverDgram (Instance);
//
// Dispatch the DPC queued by the NotifyFunction of Token->Event.
//
DispatchDpc ();
ON_EXIT:
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Aborts an asynchronous transmit or receive request.
The Cancel() function is used to abort a pending transmit or receive request.
If the token is in the transmit or receive request queues, after calling this
function, Token.Status will be set to EFI_ABORTED and then Token.Event will be
signaled. If the token is not in one of the queues, which usually means that
the asynchronous operation has completed, this function will not signal the
token and EFI_NOT_FOUND is returned.
@param[in] This Pointer to the EFI_UDP4_PROTOCOL instance.
@param[in] Token Pointer to a token that has been issued by
EFI_UDP4_PROTOCOL.Transmit() or
EFI_UDP4_PROTOCOL.Receive().If NULL, all pending
tokens are aborted.
@retval EFI_SUCCESS The asynchronous I/O request was aborted and Token.Event
was signaled. When Token is NULL, all pending requests are
aborted and their events are signaled.
@retval EFI_INVALID_PARAMETER This is NULL.
@retval EFI_NOT_STARTED This instance has not been started.
@retval EFI_NO_MAPPING When using the default address, configuration (DHCP, BOOTP,
RARP, etc.) is not finished yet.
@retval EFI_NOT_FOUND When Token is not NULL, the asynchronous I/O request was
not found in the transmit or receive queue. It has either completed
or was not issued by Transmit() and Receive().
**/
EFI_STATUS
EFIAPI
Udp4Cancel (
IN EFI_UDP4_PROTOCOL *This,
IN EFI_UDP4_COMPLETION_TOKEN *Token OPTIONAL
)
{
EFI_STATUS Status;
UDP4_INSTANCE_DATA *Instance;
EFI_TPL OldTpl;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Instance = UDP4_INSTANCE_DATA_FROM_THIS (This);
if (Instance->IsNoMapping) {
return EFI_NO_MAPPING;
}
if (!Instance->Configured) {
return EFI_NOT_STARTED;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
//
// Cancle the tokens specified by Token for this instance.
//
Status = Udp4InstanceCancelToken (Instance, Token);
//
// Dispatch the DPC queued by the NotifyFunction of the cancelled token's events.
//
DispatchDpc ();
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
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 Pointer to the EFI_UDP4_PROTOCOL instance.
@retval EFI_SUCCESS Incoming or outgoing data was processed.
@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.
**/
EFI_STATUS
EFIAPI
Udp4Poll (
IN EFI_UDP4_PROTOCOL *This
)
{
UDP4_INSTANCE_DATA *Instance;
EFI_IP4_PROTOCOL *Ip;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Instance = UDP4_INSTANCE_DATA_FROM_THIS (This);
Ip = Instance->IpInfo->Ip.Ip4;
//
// Invode the Ip instance consumed by the udp instance to do the poll operation.
//
return Ip->Poll (Ip);
}