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- /** @file
- The implementation of EFI IPv4 Configuration II Protocol.
- Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
- (C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #include "Ip4Impl.h"
- LIST_ENTRY mIp4Config2InstanceList = { &mIp4Config2InstanceList, &mIp4Config2InstanceList };
- /**
- The event process routine when the DHCPv4 service binding protocol is installed
- in the system.
- @param[in] Event Not used.
- @param[in] Context Pointer to the IP4 config2 instance data.
- **/
- VOID
- EFIAPI
- Ip4Config2OnDhcp4SbInstalled (
- IN EFI_EVENT Event,
- IN VOID *Context
- );
- /**
- Destroy the Dhcp4 child in IP4_CONFIG2_INSTANCE and release the resources.
- @param[in, out] Instance The buffer of IP4 config2 instance to be freed.
- @retval EFI_SUCCESS The child was successfully destroyed.
- @retval Others Failed to destroy the child.
- **/
- EFI_STATUS
- Ip4Config2DestroyDhcp4 (
- IN OUT IP4_CONFIG2_INSTANCE *Instance
- )
- {
- IP4_SERVICE *IpSb;
- EFI_STATUS Status;
- EFI_DHCP4_PROTOCOL *Dhcp4;
- Dhcp4 = Instance->Dhcp4;
- ASSERT (Dhcp4 != NULL);
- Dhcp4->Stop (Dhcp4);
- Dhcp4->Configure (Dhcp4, NULL);
- Instance->Dhcp4 = NULL;
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- //
- // Close DHCPv4 protocol and destroy the child.
- //
- Status = gBS->CloseProtocol (
- Instance->Dhcp4Handle,
- &gEfiDhcp4ProtocolGuid,
- IpSb->Image,
- IpSb->Controller
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- Status = NetLibDestroyServiceChild (
- IpSb->Controller,
- IpSb->Image,
- &gEfiDhcp4ServiceBindingProtocolGuid,
- Instance->Dhcp4Handle
- );
- Instance->Dhcp4Handle = NULL;
- return Status;
- }
- /**
- Update the current policy to NewPolicy. During the transition
- period, the default router list
- and address list in all interfaces will be released.
- @param[in] IpSb The IP4 service binding instance.
- @param[in] NewPolicy The new policy to be updated to.
- **/
- VOID
- Ip4Config2OnPolicyChanged (
- IN IP4_SERVICE *IpSb,
- IN EFI_IP4_CONFIG2_POLICY NewPolicy
- )
- {
- IP4_INTERFACE *IpIf;
- IP4_ROUTE_TABLE *RouteTable;
- //
- // Currently there are only two policies: static and dhcp. Regardless of
- // what transition is going on, i.e., static -> dhcp and dhcp ->
- // static, we have to free default router table and all addresses.
- //
- if (IpSb->DefaultInterface != NULL) {
- if (IpSb->DefaultRouteTable != NULL) {
- Ip4FreeRouteTable (IpSb->DefaultRouteTable);
- IpSb->DefaultRouteTable = NULL;
- }
- Ip4CancelReceive (IpSb->DefaultInterface);
- Ip4FreeInterface (IpSb->DefaultInterface, NULL);
- IpSb->DefaultInterface = NULL;
- }
- Ip4CleanAssembleTable (&IpSb->Assemble);
- //
- // Create new default interface and route table.
- //
- IpIf = Ip4CreateInterface (IpSb->Mnp, IpSb->Controller, IpSb->Image);
- if (IpIf == NULL) {
- return;
- }
- RouteTable = Ip4CreateRouteTable ();
- if (RouteTable == NULL) {
- Ip4FreeInterface (IpIf, NULL);
- return;
- }
- IpSb->DefaultInterface = IpIf;
- InsertHeadList (&IpSb->Interfaces, &IpIf->Link);
- IpSb->DefaultRouteTable = RouteTable;
- Ip4ReceiveFrame (IpIf, NULL, Ip4AccpetFrame, IpSb);
- if ((IpSb->State == IP4_SERVICE_CONFIGED) || (IpSb->State == IP4_SERVICE_STARTED)) {
- IpSb->State = IP4_SERVICE_UNSTARTED;
- }
- //
- // Start the dhcp configuration.
- //
- if (NewPolicy == Ip4Config2PolicyDhcp) {
- Ip4StartAutoConfig (&IpSb->Ip4Config2Instance);
- }
- }
- /**
- Signal the registered event. It is the callback routine for NetMapIterate.
- @param[in] Map Points to the list of registered event.
- @param[in] Item The registered event.
- @param[in] Arg Not used.
- @retval EFI_SUCCESS The event was signaled successfully.
- **/
- EFI_STATUS
- EFIAPI
- Ip4Config2SignalEvent (
- IN NET_MAP *Map,
- IN NET_MAP_ITEM *Item,
- IN VOID *Arg
- )
- {
- gBS->SignalEvent ((EFI_EVENT)Item->Key);
- return EFI_SUCCESS;
- }
- /**
- Read the configuration data from variable storage according to the VarName and
- gEfiIp4Config2ProtocolGuid. It checks the integrity of variable data. If the
- data is corrupted, it clears the variable data to ZERO. Otherwise, it outputs the
- configuration data to IP4_CONFIG2_INSTANCE.
- @param[in] VarName The pointer to the variable name
- @param[in, out] Instance The pointer to the IP4 config2 instance data.
- @retval EFI_NOT_FOUND The variable can not be found or already corrupted.
- @retval EFI_OUT_OF_RESOURCES Fail to allocate resource to complete the operation.
- @retval EFI_SUCCESS The configuration data was retrieved successfully.
- **/
- EFI_STATUS
- Ip4Config2ReadConfigData (
- IN CHAR16 *VarName,
- IN OUT IP4_CONFIG2_INSTANCE *Instance
- )
- {
- EFI_STATUS Status;
- UINTN VarSize;
- IP4_CONFIG2_VARIABLE *Variable;
- IP4_CONFIG2_DATA_ITEM *DataItem;
- UINTN Index;
- IP4_CONFIG2_DATA_RECORD DataRecord;
- CHAR8 *Data;
- //
- // Try to read the configuration variable.
- //
- VarSize = 0;
- Status = gRT->GetVariable (
- VarName,
- &gEfiIp4Config2ProtocolGuid,
- NULL,
- &VarSize,
- NULL
- );
- if (Status == EFI_BUFFER_TOO_SMALL) {
- //
- // Allocate buffer and read the config variable.
- //
- Variable = AllocatePool (VarSize);
- if (Variable == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- Status = gRT->GetVariable (
- VarName,
- &gEfiIp4Config2ProtocolGuid,
- NULL,
- &VarSize,
- Variable
- );
- if (EFI_ERROR (Status) || ((UINT16)(~NetblockChecksum ((UINT8 *)Variable, (UINT32)VarSize)) != 0)) {
- //
- // GetVariable still error or the variable is corrupted.
- // Fall back to the default value.
- //
- FreePool (Variable);
- //
- // Remove the problematic variable and return EFI_NOT_FOUND, a new
- // variable will be set again.
- //
- gRT->SetVariable (
- VarName,
- &gEfiIp4Config2ProtocolGuid,
- IP4_CONFIG2_VARIABLE_ATTRIBUTE,
- 0,
- NULL
- );
- return EFI_NOT_FOUND;
- }
- for (Index = 0; Index < Variable->DataRecordCount; Index++) {
- CopyMem (&DataRecord, &Variable->DataRecord[Index], sizeof (DataRecord));
- DataItem = &Instance->DataItem[DataRecord.DataType];
- if (DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED) &&
- (DataItem->DataSize != DataRecord.DataSize)
- )
- {
- //
- // Perhaps a corrupted data record...
- //
- continue;
- }
- if (!DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED)) {
- //
- // This data item has variable length data.
- //
- DataItem->Data.Ptr = AllocatePool (DataRecord.DataSize);
- if (DataItem->Data.Ptr == NULL) {
- //
- // no memory resource
- //
- continue;
- }
- }
- Data = (CHAR8 *)Variable + DataRecord.Offset;
- CopyMem (DataItem->Data.Ptr, Data, DataRecord.DataSize);
- DataItem->DataSize = DataRecord.DataSize;
- DataItem->Status = EFI_SUCCESS;
- }
- FreePool (Variable);
- return EFI_SUCCESS;
- }
- return Status;
- }
- /**
- Write the configuration data from IP4_CONFIG2_INSTANCE to variable storage.
- @param[in] VarName The pointer to the variable name.
- @param[in] Instance The pointer to the IP4 config2 instance data.
- @retval EFI_OUT_OF_RESOURCES Fail to allocate resource to complete the operation.
- @retval EFI_SUCCESS The configuration data is written successfully.
- **/
- EFI_STATUS
- Ip4Config2WriteConfigData (
- IN CHAR16 *VarName,
- IN IP4_CONFIG2_INSTANCE *Instance
- )
- {
- UINTN Index;
- UINTN VarSize;
- IP4_CONFIG2_DATA_ITEM *DataItem;
- IP4_CONFIG2_VARIABLE *Variable;
- IP4_CONFIG2_DATA_RECORD *DataRecord;
- CHAR8 *Heap;
- EFI_STATUS Status;
- VarSize = sizeof (IP4_CONFIG2_VARIABLE) - sizeof (IP4_CONFIG2_DATA_RECORD);
- for (Index = 0; Index < Ip4Config2DataTypeMaximum; Index++) {
- DataItem = &Instance->DataItem[Index];
- if (!DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_VOLATILE) && !EFI_ERROR (DataItem->Status)) {
- VarSize += sizeof (IP4_CONFIG2_DATA_RECORD) + DataItem->DataSize;
- }
- }
- Variable = AllocatePool (VarSize);
- if (Variable == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- Heap = (CHAR8 *)Variable + VarSize;
- Variable->DataRecordCount = 0;
- for (Index = 0; Index < Ip4Config2DataTypeMaximum; Index++) {
- DataItem = &Instance->DataItem[Index];
- if (!DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_VOLATILE) && !EFI_ERROR (DataItem->Status)) {
- Heap -= DataItem->DataSize;
- CopyMem (Heap, DataItem->Data.Ptr, DataItem->DataSize);
- DataRecord = &Variable->DataRecord[Variable->DataRecordCount];
- DataRecord->DataType = (EFI_IP4_CONFIG2_DATA_TYPE)Index;
- DataRecord->DataSize = (UINT32)DataItem->DataSize;
- DataRecord->Offset = (UINT16)(Heap - (CHAR8 *)Variable);
- Variable->DataRecordCount++;
- }
- }
- Variable->Checksum = 0;
- Variable->Checksum = (UINT16) ~NetblockChecksum ((UINT8 *)Variable, (UINT32)VarSize);
- Status = gRT->SetVariable (
- VarName,
- &gEfiIp4Config2ProtocolGuid,
- IP4_CONFIG2_VARIABLE_ATTRIBUTE,
- VarSize,
- Variable
- );
- FreePool (Variable);
- return Status;
- }
- /**
- Build a EFI_IP4_ROUTE_TABLE to be returned to the caller of GetModeData.
- The EFI_IP4_ROUTE_TABLE is clumsy to use in the internal operation of the
- IP4 driver.
- @param[in] IpSb The IP4 service binding instance.
- @param[out] Table The built IP4 route table.
- @retval EFI_SUCCESS The route table is successfully build
- @retval EFI_NOT_FOUND Failed to allocate the memory for the route table.
- **/
- EFI_STATUS
- Ip4Config2BuildDefaultRouteTable (
- IN IP4_SERVICE *IpSb,
- OUT EFI_IP4_ROUTE_TABLE *Table
- )
- {
- LIST_ENTRY *Entry;
- IP4_ROUTE_ENTRY *RtEntry;
- UINT32 Count;
- INT32 Index;
- if (IpSb->DefaultRouteTable == NULL) {
- return EFI_NOT_FOUND;
- }
- Count = IpSb->DefaultRouteTable->TotalNum;
- if (Count == 0) {
- return EFI_NOT_FOUND;
- }
- //
- // Copy the route entry to EFI route table. Keep the order of
- // route entry copied from most specific to default route. That
- // is, interlevel the route entry from the instance's route area
- // and those from the default route table's route area.
- //
- Count = 0;
- for (Index = IP4_MASK_MAX; Index >= 0; Index--) {
- NET_LIST_FOR_EACH (Entry, &(IpSb->DefaultRouteTable->RouteArea[Index])) {
- RtEntry = NET_LIST_USER_STRUCT (Entry, IP4_ROUTE_ENTRY, Link);
- EFI_IP4 (Table[Count].SubnetAddress) = HTONL (RtEntry->Dest & RtEntry->Netmask);
- EFI_IP4 (Table[Count].SubnetMask) = HTONL (RtEntry->Netmask);
- EFI_IP4 (Table[Count].GatewayAddress) = HTONL (RtEntry->NextHop);
- Count++;
- }
- }
- return EFI_SUCCESS;
- }
- /**
- The event process routine when the DHCPv4 service binding protocol is installed
- in the system.
- @param[in] Event Not used.
- @param[in] Context The pointer to the IP4 config2 instance data.
- **/
- VOID
- EFIAPI
- Ip4Config2OnDhcp4SbInstalled (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
- {
- IP4_CONFIG2_INSTANCE *Instance;
- Instance = (IP4_CONFIG2_INSTANCE *)Context;
- if ((Instance->Dhcp4Handle != NULL) || (Instance->Policy != Ip4Config2PolicyDhcp)) {
- //
- // The DHCP4 child is already created or the policy is no longer DHCP.
- //
- return;
- }
- Ip4StartAutoConfig (Instance);
- }
- /**
- Set the station address and subnetmask for the default interface.
- @param[in] IpSb The pointer to the IP4 service binding instance.
- @param[in] StationAddress Ip address to be set.
- @param[in] SubnetMask Subnet to be set.
- @retval EFI_SUCCESS Set default address successful.
- @retval Others Some errors occur in setting.
- **/
- EFI_STATUS
- Ip4Config2SetDefaultAddr (
- IN IP4_SERVICE *IpSb,
- IN IP4_ADDR StationAddress,
- IN IP4_ADDR SubnetMask
- )
- {
- EFI_STATUS Status;
- IP4_INTERFACE *IpIf;
- IP4_PROTOCOL *Ip4Instance;
- EFI_ARP_PROTOCOL *Arp;
- LIST_ENTRY *Entry;
- IP4_ADDR Subnet;
- IP4_ROUTE_TABLE *RouteTable;
- IpIf = IpSb->DefaultInterface;
- ASSERT (IpIf != NULL);
- if ((IpIf->Ip == StationAddress) && (IpIf->SubnetMask == SubnetMask)) {
- IpSb->State = IP4_SERVICE_CONFIGED;
- return EFI_SUCCESS;
- }
- if (IpSb->Reconfig) {
- //
- // The default address is changed, free the previous interface first.
- //
- if (IpSb->DefaultRouteTable != NULL) {
- Ip4FreeRouteTable (IpSb->DefaultRouteTable);
- IpSb->DefaultRouteTable = NULL;
- }
- Ip4CancelReceive (IpSb->DefaultInterface);
- Ip4FreeInterface (IpSb->DefaultInterface, NULL);
- IpSb->DefaultInterface = NULL;
- //
- // Create new default interface and route table.
- //
- IpIf = Ip4CreateInterface (IpSb->Mnp, IpSb->Controller, IpSb->Image);
- if (IpIf == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- RouteTable = Ip4CreateRouteTable ();
- if (RouteTable == NULL) {
- Ip4FreeInterface (IpIf, NULL);
- return EFI_OUT_OF_RESOURCES;
- }
- IpSb->DefaultInterface = IpIf;
- InsertHeadList (&IpSb->Interfaces, &IpIf->Link);
- IpSb->DefaultRouteTable = RouteTable;
- Ip4ReceiveFrame (IpIf, NULL, Ip4AccpetFrame, IpSb);
- }
- if (IpSb->State == IP4_SERVICE_CONFIGED) {
- IpSb->State = IP4_SERVICE_UNSTARTED;
- }
- Status = Ip4SetAddress (IpIf, StationAddress, SubnetMask);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (IpIf->Arp != NULL) {
- //
- // A non-NULL IpIf->Arp here means a new ARP child is created when setting default address,
- // but some IP children may have referenced the default interface before it is configured,
- // these IP instances also consume this ARP protocol so they need to open it BY_CHILD_CONTROLLER.
- //
- Arp = NULL;
- NET_LIST_FOR_EACH (Entry, &IpIf->IpInstances) {
- Ip4Instance = NET_LIST_USER_STRUCT_S (Entry, IP4_PROTOCOL, AddrLink, IP4_PROTOCOL_SIGNATURE);
- Status = gBS->OpenProtocol (
- IpIf->ArpHandle,
- &gEfiArpProtocolGuid,
- (VOID **)&Arp,
- gIp4DriverBinding.DriverBindingHandle,
- Ip4Instance->Handle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- }
- }
- //
- // Add a route for the connected network.
- //
- Subnet = StationAddress & SubnetMask;
- Ip4AddRoute (
- IpSb->DefaultRouteTable,
- Subnet,
- SubnetMask,
- IP4_ALLZERO_ADDRESS
- );
- IpSb->State = IP4_SERVICE_CONFIGED;
- IpSb->Reconfig = FALSE;
- return EFI_SUCCESS;
- }
- /**
- Set the station address, subnetmask and gateway address for the default interface.
- @param[in] Instance The pointer to the IP4 config2 instance data.
- @param[in] StationAddress Ip address to be set.
- @param[in] SubnetMask Subnet to be set.
- @param[in] GatewayAddress Gateway to be set.
- @retval EFI_SUCCESS Set default If successful.
- @retval Others Errors occur as indicated.
- **/
- EFI_STATUS
- Ip4Config2SetDefaultIf (
- IN IP4_CONFIG2_INSTANCE *Instance,
- IN IP4_ADDR StationAddress,
- IN IP4_ADDR SubnetMask,
- IN IP4_ADDR GatewayAddress
- )
- {
- EFI_STATUS Status;
- IP4_SERVICE *IpSb;
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- //
- // Check whether the StationAddress/SubnetMask pair is valid.
- //
- if (!Ip4StationAddressValid (StationAddress, SubnetMask)) {
- return EFI_INVALID_PARAMETER;
- }
- Status = Ip4Config2SetDefaultAddr (IpSb, StationAddress, SubnetMask);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Create a route if there is a default router.
- //
- if (GatewayAddress != IP4_ALLZERO_ADDRESS) {
- Ip4AddRoute (
- IpSb->DefaultRouteTable,
- IP4_ALLZERO_ADDRESS,
- IP4_ALLZERO_ADDRESS,
- GatewayAddress
- );
- }
- return EFI_SUCCESS;
- }
- /**
- Release all the DHCP related resources.
- @param Instance The IP4 config2 instance.
- @return None
- **/
- VOID
- Ip4Config2CleanDhcp4 (
- IN IP4_CONFIG2_INSTANCE *Instance
- )
- {
- IP4_SERVICE *IpSb;
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- if (Instance->Dhcp4 != NULL) {
- Instance->Dhcp4->Stop (Instance->Dhcp4);
- gBS->CloseProtocol (
- Instance->Dhcp4Handle,
- &gEfiDhcp4ProtocolGuid,
- IpSb->Image,
- IpSb->Controller
- );
- Instance->Dhcp4 = NULL;
- }
- if (Instance->Dhcp4Handle != NULL) {
- NetLibDestroyServiceChild (
- IpSb->Controller,
- IpSb->Image,
- &gEfiDhcp4ServiceBindingProtocolGuid,
- Instance->Dhcp4Handle
- );
- Instance->Dhcp4Handle = NULL;
- }
- if (Instance->Dhcp4Event != NULL) {
- gBS->CloseEvent (Instance->Dhcp4Event);
- Instance->Dhcp4Event = NULL;
- }
- }
- /**
- This worker function sets the DNS server list for the EFI IPv4 network
- stack running on the communication device that this EFI_IP4_CONFIG2_PROTOCOL
- manages. The DNS server addresses must be unicast IPv4 addresses.
- @param[in] Instance The pointer to the IP4 config2 instance data.
- @param[in] DataSize The size of the buffer pointed to by Data in bytes.
- @param[in] Data The data buffer to set, points to an array of
- EFI_IPv4_ADDRESS instances.
- @retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type.
- @retval EFI_INVALID_PARAMETER One or more fields in Data is invalid.
- @retval EFI_OUT_OF_RESOURCES Failed to allocate resources to complete the operation.
- @retval EFI_ABORTED The DNS server addresses to be set equal the current
- configuration.
- @retval EFI_SUCCESS The specified configuration data for the EFI IPv4
- network stack was set.
- **/
- EFI_STATUS
- Ip4Config2SetDnsServerWorker (
- IN IP4_CONFIG2_INSTANCE *Instance,
- IN UINTN DataSize,
- IN VOID *Data
- )
- {
- UINTN OldIndex;
- UINTN NewIndex;
- EFI_IPv4_ADDRESS *OldDns;
- EFI_IPv4_ADDRESS *NewDns;
- UINTN OldDnsCount;
- UINTN NewDnsCount;
- IP4_CONFIG2_DATA_ITEM *Item;
- BOOLEAN OneAdded;
- VOID *Tmp;
- IP4_ADDR DnsAddress;
- if ((DataSize % sizeof (EFI_IPv4_ADDRESS) != 0) || (DataSize == 0)) {
- return EFI_BAD_BUFFER_SIZE;
- }
- Item = &Instance->DataItem[Ip4Config2DataTypeDnsServer];
- NewDns = (EFI_IPv4_ADDRESS *)Data;
- OldDns = Item->Data.DnsServers;
- NewDnsCount = DataSize / sizeof (EFI_IPv4_ADDRESS);
- OldDnsCount = Item->DataSize / sizeof (EFI_IPv4_ADDRESS);
- OneAdded = FALSE;
- if (NewDnsCount != OldDnsCount) {
- Tmp = AllocatePool (DataSize);
- if (Tmp == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- } else {
- Tmp = NULL;
- }
- for (NewIndex = 0; NewIndex < NewDnsCount; NewIndex++) {
- CopyMem (&DnsAddress, NewDns + NewIndex, sizeof (IP4_ADDR));
- if (IP4_IS_UNSPECIFIED (NTOHL (DnsAddress)) || IP4_IS_LOCAL_BROADCAST (NTOHL (DnsAddress))) {
- //
- // The dns server address must be unicast.
- //
- if (Tmp != NULL) {
- FreePool (Tmp);
- }
- return EFI_INVALID_PARAMETER;
- }
- if (OneAdded) {
- //
- // If any address in the new setting is not in the old settings, skip the
- // comparision below.
- //
- continue;
- }
- for (OldIndex = 0; OldIndex < OldDnsCount; OldIndex++) {
- if (EFI_IP4_EQUAL (NewDns + NewIndex, OldDns + OldIndex)) {
- //
- // If found break out.
- //
- break;
- }
- }
- if (OldIndex == OldDnsCount) {
- OneAdded = TRUE;
- }
- }
- if (!OneAdded && (DataSize == Item->DataSize)) {
- //
- // No new item is added and the size is the same.
- //
- Item->Status = EFI_SUCCESS;
- return EFI_ABORTED;
- } else {
- if (Tmp != NULL) {
- if (Item->Data.Ptr != NULL) {
- FreePool (Item->Data.Ptr);
- }
- Item->Data.Ptr = Tmp;
- }
- CopyMem (Item->Data.Ptr, Data, DataSize);
- Item->DataSize = DataSize;
- Item->Status = EFI_SUCCESS;
- return EFI_SUCCESS;
- }
- }
- /**
- Callback function when DHCP process finished. It will save the
- retrieved IP configure parameter from DHCP to the NVRam.
- @param Event The callback event
- @param Context Opaque context to the callback
- @return None
- **/
- VOID
- EFIAPI
- Ip4Config2OnDhcp4Complete (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
- {
- IP4_CONFIG2_INSTANCE *Instance;
- EFI_DHCP4_MODE_DATA Dhcp4Mode;
- EFI_STATUS Status;
- IP4_ADDR StationAddress;
- IP4_ADDR SubnetMask;
- IP4_ADDR GatewayAddress;
- UINT32 Index;
- UINT32 OptionCount;
- EFI_DHCP4_PACKET_OPTION **OptionList;
- Instance = (IP4_CONFIG2_INSTANCE *)Context;
- ASSERT (Instance->Dhcp4 != NULL);
- //
- // Get the DHCP retrieved parameters
- //
- Status = Instance->Dhcp4->GetModeData (Instance->Dhcp4, &Dhcp4Mode);
- if (EFI_ERROR (Status)) {
- goto Exit;
- }
- if (Dhcp4Mode.State == Dhcp4Bound) {
- StationAddress = EFI_NTOHL (Dhcp4Mode.ClientAddress);
- SubnetMask = EFI_NTOHL (Dhcp4Mode.SubnetMask);
- GatewayAddress = EFI_NTOHL (Dhcp4Mode.RouterAddress);
- Status = Ip4Config2SetDefaultIf (Instance, StationAddress, SubnetMask, GatewayAddress);
- if (EFI_ERROR (Status)) {
- goto Exit;
- }
- //
- // Parse the ACK to get required DNS server information.
- //
- OptionCount = 0;
- OptionList = NULL;
- Status = Instance->Dhcp4->Parse (Instance->Dhcp4, Dhcp4Mode.ReplyPacket, &OptionCount, OptionList);
- if (Status != EFI_BUFFER_TOO_SMALL) {
- goto Exit;
- }
- OptionList = AllocateZeroPool (OptionCount * sizeof (EFI_DHCP4_PACKET_OPTION *));
- if (OptionList == NULL) {
- goto Exit;
- }
- Status = Instance->Dhcp4->Parse (Instance->Dhcp4, Dhcp4Mode.ReplyPacket, &OptionCount, OptionList);
- if (EFI_ERROR (Status)) {
- FreePool (OptionList);
- goto Exit;
- }
- for (Index = 0; Index < OptionCount; Index++) {
- //
- // Look for DNS Server opcode (6).
- //
- if (OptionList[Index]->OpCode == DHCP4_TAG_DNS_SERVER) {
- if (((OptionList[Index]->Length & 0x3) != 0) || (OptionList[Index]->Length == 0)) {
- break;
- }
- Ip4Config2SetDnsServerWorker (Instance, OptionList[Index]->Length, &OptionList[Index]->Data[0]);
- break;
- }
- }
- FreePool (OptionList);
- Instance->DhcpSuccess = TRUE;
- }
- Exit:
- Ip4Config2CleanDhcp4 (Instance);
- DispatchDpc ();
- }
- /**
- Start the DHCP configuration for this IP service instance.
- It will locates the EFI_IP4_CONFIG2_PROTOCOL, then start the
- DHCP configuration.
- @param[in] Instance The IP4 config2 instance to configure
- @retval EFI_SUCCESS The auto configuration is successfully started
- @retval Others Failed to start auto configuration.
- **/
- EFI_STATUS
- Ip4StartAutoConfig (
- IN IP4_CONFIG2_INSTANCE *Instance
- )
- {
- IP4_SERVICE *IpSb;
- EFI_DHCP4_PROTOCOL *Dhcp4;
- EFI_DHCP4_MODE_DATA Dhcp4Mode;
- EFI_DHCP4_PACKET_OPTION *OptionList[1];
- IP4_CONFIG2_DHCP4_OPTION ParaList;
- EFI_STATUS Status;
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- if (IpSb->State > IP4_SERVICE_UNSTARTED) {
- return EFI_SUCCESS;
- }
- //
- // A host must not invoke DHCP configuration if it is already
- // participating in the DHCP configuration process.
- //
- if (Instance->Dhcp4Handle != NULL) {
- return EFI_SUCCESS;
- }
- Status = NetLibCreateServiceChild (
- IpSb->Controller,
- IpSb->Image,
- &gEfiDhcp4ServiceBindingProtocolGuid,
- &Instance->Dhcp4Handle
- );
- if (Status == EFI_UNSUPPORTED) {
- //
- // No DHCPv4 Service Binding protocol, register a notify.
- //
- if (Instance->Dhcp4SbNotifyEvent == NULL) {
- Instance->Dhcp4SbNotifyEvent = EfiCreateProtocolNotifyEvent (
- &gEfiDhcp4ServiceBindingProtocolGuid,
- TPL_CALLBACK,
- Ip4Config2OnDhcp4SbInstalled,
- (VOID *)Instance,
- &Instance->Registration
- );
- }
- }
- if (EFI_ERROR (Status)) {
- return Status;
- }
- if (Instance->Dhcp4SbNotifyEvent != NULL) {
- gBS->CloseEvent (Instance->Dhcp4SbNotifyEvent);
- }
- Status = gBS->OpenProtocol (
- Instance->Dhcp4Handle,
- &gEfiDhcp4ProtocolGuid,
- (VOID **)&Instance->Dhcp4,
- IpSb->Image,
- IpSb->Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (EFI_ERROR (Status)) {
- NetLibDestroyServiceChild (
- IpSb->Controller,
- IpSb->Image,
- &gEfiDhcp4ServiceBindingProtocolGuid,
- Instance->Dhcp4Handle
- );
- Instance->Dhcp4Handle = NULL;
- return Status;
- }
- //
- // Check the current DHCP status, if the DHCP process has
- // already finished, return now.
- //
- Dhcp4 = Instance->Dhcp4;
- Status = Dhcp4->GetModeData (Dhcp4, &Dhcp4Mode);
- if (Dhcp4Mode.State == Dhcp4Bound) {
- Ip4Config2OnDhcp4Complete (NULL, Instance);
- return EFI_SUCCESS;
- }
- //
- // Try to start the DHCP process. Use most of the current
- // DHCP configuration to avoid problems if some DHCP client
- // yields the control of this DHCP service to us.
- //
- ParaList.Head.OpCode = DHCP4_TAG_PARA_LIST;
- ParaList.Head.Length = 3;
- ParaList.Head.Data[0] = DHCP4_TAG_NETMASK;
- ParaList.Route = DHCP4_TAG_ROUTER;
- ParaList.Dns = DHCP4_TAG_DNS_SERVER;
- OptionList[0] = &ParaList.Head;
- Dhcp4Mode.ConfigData.OptionCount = 1;
- Dhcp4Mode.ConfigData.OptionList = OptionList;
- Status = Dhcp4->Configure (Dhcp4, &Dhcp4Mode.ConfigData);
- if (EFI_ERROR (Status)) {
- gBS->CloseProtocol (
- Instance->Dhcp4Handle,
- &gEfiDhcp4ProtocolGuid,
- IpSb->Image,
- IpSb->Controller
- );
- NetLibDestroyServiceChild (
- IpSb->Controller,
- IpSb->Image,
- &gEfiDhcp4ServiceBindingProtocolGuid,
- Instance->Dhcp4Handle
- );
- Instance->Dhcp4 = NULL;
- Instance->Dhcp4Handle = NULL;
- return Status;
- }
- //
- // Start the DHCP process
- //
- Status = gBS->CreateEvent (
- EVT_NOTIFY_SIGNAL,
- TPL_CALLBACK,
- Ip4Config2OnDhcp4Complete,
- Instance,
- &Instance->Dhcp4Event
- );
- if (EFI_ERROR (Status)) {
- Ip4Config2DestroyDhcp4 (Instance);
- return Status;
- }
- Status = Dhcp4->Start (Dhcp4, Instance->Dhcp4Event);
- if (EFI_ERROR (Status)) {
- Ip4Config2DestroyDhcp4 (Instance);
- gBS->CloseEvent (Instance->Dhcp4Event);
- Instance->Dhcp4Event = NULL;
- return Status;
- }
- IpSb->State = IP4_SERVICE_STARTED;
- DispatchDpc ();
- return EFI_SUCCESS;
- }
- /**
- The work function is to get the interface information of the communication
- device this IP4_CONFIG2_INSTANCE manages.
- @param[in] Instance Pointer to the IP4 config2 instance data.
- @param[in, out] DataSize On input, in bytes, the size of Data. On output, in
- bytes, the size of buffer required to store the specified
- configuration data.
- @param[in] Data The data buffer in which the configuration data is returned.
- Ignored if DataSize is ZERO.
- @retval EFI_BUFFER_TOO_SMALL The size of Data is too small for the specified
- configuration data, and the required size is
- returned in DataSize.
- @retval EFI_SUCCESS The specified configuration data was obtained.
- **/
- EFI_STATUS
- Ip4Config2GetIfInfo (
- IN IP4_CONFIG2_INSTANCE *Instance,
- IN OUT UINTN *DataSize,
- IN VOID *Data OPTIONAL
- )
- {
- IP4_SERVICE *IpSb;
- UINTN Length;
- IP4_CONFIG2_DATA_ITEM *Item;
- EFI_IP4_CONFIG2_INTERFACE_INFO *IfInfo;
- IP4_ADDR Address;
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- Length = sizeof (EFI_IP4_CONFIG2_INTERFACE_INFO);
- if (IpSb->DefaultRouteTable != NULL) {
- Length += IpSb->DefaultRouteTable->TotalNum * sizeof (EFI_IP4_ROUTE_TABLE);
- }
- if (*DataSize < Length) {
- *DataSize = Length;
- return EFI_BUFFER_TOO_SMALL;
- }
- //
- // Copy the fixed size part of the interface info.
- //
- Item = &Instance->DataItem[Ip4Config2DataTypeInterfaceInfo];
- IfInfo = (EFI_IP4_CONFIG2_INTERFACE_INFO *)Data;
- CopyMem (IfInfo, Item->Data.Ptr, sizeof (EFI_IP4_CONFIG2_INTERFACE_INFO));
- //
- // Update the address info.
- //
- if (IpSb->DefaultInterface != NULL) {
- Address = HTONL (IpSb->DefaultInterface->Ip);
- CopyMem (&IfInfo->StationAddress, &Address, sizeof (EFI_IPv4_ADDRESS));
- Address = HTONL (IpSb->DefaultInterface->SubnetMask);
- CopyMem (&IfInfo->SubnetMask, &Address, sizeof (EFI_IPv4_ADDRESS));
- }
- if (IpSb->DefaultRouteTable != NULL) {
- IfInfo->RouteTableSize = IpSb->DefaultRouteTable->TotalNum;
- IfInfo->RouteTable = (EFI_IP4_ROUTE_TABLE *)((UINT8 *)Data + sizeof (EFI_IP4_CONFIG2_INTERFACE_INFO));
- Ip4Config2BuildDefaultRouteTable (IpSb, IfInfo->RouteTable);
- }
- return EFI_SUCCESS;
- }
- /**
- The work function is to set the general configuration policy for the EFI IPv4 network
- stack that is running on the communication device managed by this IP4_CONFIG2_INSTANCE.
- The policy will affect other configuration settings.
- @param[in] Instance Pointer to the IP4 config2 instance data.
- @param[in] DataSize Size of the buffer pointed to by Data in bytes.
- @param[in] Data The data buffer to set.
- @retval EFI_INVALID_PARAMETER The to be set policy is invalid.
- @retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type.
- @retval EFI_ABORTED The new policy equals the current policy.
- @retval EFI_SUCCESS The specified configuration data for the EFI IPv6
- network stack was set.
- **/
- EFI_STATUS
- Ip4Config2SetPolicy (
- IN IP4_CONFIG2_INSTANCE *Instance,
- IN UINTN DataSize,
- IN VOID *Data
- )
- {
- EFI_IP4_CONFIG2_POLICY NewPolicy;
- IP4_CONFIG2_DATA_ITEM *DataItem;
- IP4_SERVICE *IpSb;
- if (DataSize != sizeof (EFI_IP4_CONFIG2_POLICY)) {
- return EFI_BAD_BUFFER_SIZE;
- }
- NewPolicy = *((EFI_IP4_CONFIG2_POLICY *)Data);
- if (NewPolicy >= Ip4Config2PolicyMax) {
- return EFI_INVALID_PARAMETER;
- }
- if (NewPolicy == Instance->Policy) {
- if ((NewPolicy != Ip4Config2PolicyDhcp) || Instance->DhcpSuccess) {
- return EFI_ABORTED;
- }
- } else {
- //
- // The policy is changed. Clean the ManualAddress, Gateway and DnsServers,
- // shrink the variable data size, and fire up all the related events.
- //
- DataItem = &Instance->DataItem[Ip4Config2DataTypeManualAddress];
- if (DataItem->Data.Ptr != NULL) {
- FreePool (DataItem->Data.Ptr);
- }
- DataItem->Data.Ptr = NULL;
- DataItem->DataSize = 0;
- DataItem->Status = EFI_NOT_FOUND;
- NetMapIterate (&DataItem->EventMap, Ip4Config2SignalEvent, NULL);
- DataItem = &Instance->DataItem[Ip4Config2DataTypeGateway];
- if (DataItem->Data.Ptr != NULL) {
- FreePool (DataItem->Data.Ptr);
- }
- DataItem->Data.Ptr = NULL;
- DataItem->DataSize = 0;
- DataItem->Status = EFI_NOT_FOUND;
- NetMapIterate (&DataItem->EventMap, Ip4Config2SignalEvent, NULL);
- DataItem = &Instance->DataItem[Ip4Config2DataTypeDnsServer];
- if (DataItem->Data.Ptr != NULL) {
- FreePool (DataItem->Data.Ptr);
- }
- DataItem->Data.Ptr = NULL;
- DataItem->DataSize = 0;
- DataItem->Status = EFI_NOT_FOUND;
- NetMapIterate (&DataItem->EventMap, Ip4Config2SignalEvent, NULL);
- if (NewPolicy == Ip4Config2PolicyDhcp) {
- SET_DATA_ATTRIB (DataItem->Attribute, DATA_ATTRIB_VOLATILE);
- } else {
- //
- // The policy is changed from dhcp to static. Stop the DHCPv4 process
- // and destroy the DHCPv4 child.
- //
- if (Instance->Dhcp4Handle != NULL) {
- Ip4Config2DestroyDhcp4 (Instance);
- }
- //
- // Close the event.
- //
- if (Instance->Dhcp4Event != NULL) {
- gBS->CloseEvent (Instance->Dhcp4Event);
- Instance->Dhcp4Event = NULL;
- }
- }
- }
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- Ip4Config2OnPolicyChanged (IpSb, NewPolicy);
- Instance->Policy = NewPolicy;
- return EFI_SUCCESS;
- }
- /**
- The work function is to set the station addresses manually for the EFI IPv4
- network stack. It is only configurable when the policy is Ip4Config2PolicyStatic.
- @param[in] Instance Pointer to the IP4 config2 instance data.
- @param[in] DataSize Size of the buffer pointed to by Data in bytes.
- @param[in] Data The data buffer to set.
- @retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type.
- @retval EFI_WRITE_PROTECTED The specified configuration data cannot be set
- under the current policy.
- @retval EFI_INVALID_PARAMETER One or more fields in Data is invalid.
- @retval EFI_OUT_OF_RESOURCES Fail to allocate resource to complete the operation.
- @retval EFI_NOT_READY An asynchronous process is invoked to set the specified
- configuration data, and the process is not finished.
- @retval EFI_ABORTED The manual addresses to be set equal current
- configuration.
- @retval EFI_SUCCESS The specified configuration data for the EFI IPv6
- network stack was set.
- **/
- EFI_STATUS
- Ip4Config2SetManualAddress (
- IN IP4_CONFIG2_INSTANCE *Instance,
- IN UINTN DataSize,
- IN VOID *Data
- )
- {
- EFI_IP4_CONFIG2_MANUAL_ADDRESS NewAddress;
- IP4_CONFIG2_DATA_ITEM *DataItem;
- EFI_STATUS Status;
- IP4_ADDR StationAddress;
- IP4_ADDR SubnetMask;
- VOID *Ptr;
- IP4_SERVICE *IpSb;
- IP4_INTERFACE *IpIf;
- IP4_ROUTE_TABLE *RouteTable;
- DataItem = NULL;
- Status = EFI_SUCCESS;
- Ptr = NULL;
- IpIf = NULL;
- RouteTable = NULL;
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- ASSERT (Instance->DataItem[Ip4Config2DataTypeManualAddress].Status != EFI_NOT_READY);
- if ((DataSize != 0) && ((DataSize % sizeof (EFI_IP4_CONFIG2_MANUAL_ADDRESS)) != 0)) {
- return EFI_BAD_BUFFER_SIZE;
- }
- if (Instance->Policy != Ip4Config2PolicyStatic) {
- return EFI_WRITE_PROTECTED;
- }
- DataItem = &Instance->DataItem[Ip4Config2DataTypeManualAddress];
- if ((Data != NULL) && (DataSize != 0)) {
- NewAddress = *((EFI_IP4_CONFIG2_MANUAL_ADDRESS *)Data);
- StationAddress = EFI_NTOHL (NewAddress.Address);
- SubnetMask = EFI_NTOHL (NewAddress.SubnetMask);
- //
- // Check whether the StationAddress/SubnetMask pair is valid.
- //
- if (!Ip4StationAddressValid (StationAddress, SubnetMask)) {
- return EFI_INVALID_PARAMETER;
- }
- //
- // Store the new data, and init the DataItem status to EFI_NOT_READY because
- // we may have an asynchronous configuration process.
- //
- Ptr = AllocateCopyPool (DataSize, Data);
- if (Ptr == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- if (DataItem->Data.Ptr != NULL) {
- FreePool (DataItem->Data.Ptr);
- }
- DataItem->Data.Ptr = Ptr;
- DataItem->DataSize = DataSize;
- DataItem->Status = EFI_NOT_READY;
- IpSb->Reconfig = TRUE;
- Status = Ip4Config2SetDefaultAddr (IpSb, StationAddress, SubnetMask);
- DataItem->Status = Status;
- if (EFI_ERROR (DataItem->Status) && (DataItem->Status != EFI_NOT_READY)) {
- if (Ptr != NULL) {
- FreePool (Ptr);
- }
- DataItem->Data.Ptr = NULL;
- }
- } else {
- //
- // DataSize is 0 and Data is NULL, clean up the manual address.
- //
- if (DataItem->Data.Ptr != NULL) {
- FreePool (DataItem->Data.Ptr);
- }
- DataItem->Data.Ptr = NULL;
- DataItem->DataSize = 0;
- DataItem->Status = EFI_NOT_FOUND;
- //
- // Free the default router table and Interface, clean up the assemble table.
- //
- if (IpSb->DefaultInterface != NULL) {
- if (IpSb->DefaultRouteTable != NULL) {
- Ip4FreeRouteTable (IpSb->DefaultRouteTable);
- IpSb->DefaultRouteTable = NULL;
- }
- Ip4CancelReceive (IpSb->DefaultInterface);
- Ip4FreeInterface (IpSb->DefaultInterface, NULL);
- IpSb->DefaultInterface = NULL;
- }
- Ip4CleanAssembleTable (&IpSb->Assemble);
- //
- // Create new default interface and route table.
- //
- IpIf = Ip4CreateInterface (IpSb->Mnp, IpSb->Controller, IpSb->Image);
- if (IpIf == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- RouteTable = Ip4CreateRouteTable ();
- if (RouteTable == NULL) {
- Ip4FreeInterface (IpIf, NULL);
- return EFI_OUT_OF_RESOURCES;
- }
- IpSb->DefaultInterface = IpIf;
- InsertHeadList (&IpSb->Interfaces, &IpIf->Link);
- IpSb->DefaultRouteTable = RouteTable;
- Ip4ReceiveFrame (IpIf, NULL, Ip4AccpetFrame, IpSb);
- //
- // Reset the State to unstarted.
- //
- if ((IpSb->State == IP4_SERVICE_CONFIGED) || (IpSb->State == IP4_SERVICE_STARTED)) {
- IpSb->State = IP4_SERVICE_UNSTARTED;
- }
- }
- return Status;
- }
- /**
- The work function is to set the gateway addresses manually for the EFI IPv4
- network stack that is running on the communication device that this EFI IPv4
- Configuration Protocol manages. It is not configurable when the policy is
- Ip4Config2PolicyDhcp. The gateway addresses must be unicast IPv4 addresses.
- @param[in] Instance The pointer to the IP4 config2 instance data.
- @param[in] DataSize The size of the buffer pointed to by Data in bytes.
- @param[in] Data The data buffer to set. This points to an array of
- EFI_IPv6_ADDRESS instances.
- @retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type.
- @retval EFI_WRITE_PROTECTED The specified configuration data cannot be set
- under the current policy.
- @retval EFI_INVALID_PARAMETER One or more fields in Data is invalid.
- @retval EFI_OUT_OF_RESOURCES Failed to allocate resource to complete the operation.
- @retval EFI_ABORTED The manual gateway addresses to be set equal the
- current configuration.
- @retval EFI_SUCCESS The specified configuration data for the EFI IPv6
- network stack was set.
- **/
- EFI_STATUS
- Ip4Config2SetGateway (
- IN IP4_CONFIG2_INSTANCE *Instance,
- IN UINTN DataSize,
- IN VOID *Data
- )
- {
- IP4_SERVICE *IpSb;
- IP4_CONFIG2_DATA_ITEM *DataItem;
- IP4_ADDR Gateway;
- UINTN Index1;
- UINTN Index2;
- EFI_IPv4_ADDRESS *OldGateway;
- EFI_IPv4_ADDRESS *NewGateway;
- UINTN OldGatewayCount;
- UINTN NewGatewayCount;
- BOOLEAN OneRemoved;
- BOOLEAN OneAdded;
- VOID *Tmp;
- OldGateway = NULL;
- NewGateway = NULL;
- OneRemoved = FALSE;
- OneAdded = FALSE;
- Tmp = NULL;
- if ((DataSize != 0) && (DataSize % sizeof (EFI_IPv4_ADDRESS) != 0)) {
- return EFI_BAD_BUFFER_SIZE;
- }
- if (Instance->Policy != Ip4Config2PolicyStatic) {
- return EFI_WRITE_PROTECTED;
- }
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- DataItem = &Instance->DataItem[Ip4Config2DataTypeGateway];
- OldGateway = DataItem->Data.Gateway;
- OldGatewayCount = DataItem->DataSize / sizeof (EFI_IPv4_ADDRESS);
- for (Index1 = 0; Index1 < OldGatewayCount; Index1++) {
- //
- // Remove the old route entry.
- //
- CopyMem (&Gateway, OldGateway + Index1, sizeof (IP4_ADDR));
- Ip4DelRoute (
- IpSb->DefaultRouteTable,
- IP4_ALLZERO_ADDRESS,
- IP4_ALLZERO_ADDRESS,
- NTOHL (Gateway)
- );
- OneRemoved = TRUE;
- }
- if ((Data != NULL) && (DataSize != 0)) {
- NewGateway = (EFI_IPv4_ADDRESS *)Data;
- NewGatewayCount = DataSize / sizeof (EFI_IPv4_ADDRESS);
- for (Index1 = 0; Index1 < NewGatewayCount; Index1++) {
- CopyMem (&Gateway, NewGateway + Index1, sizeof (IP4_ADDR));
- if ((IpSb->DefaultInterface->SubnetMask != 0) &&
- !NetIp4IsUnicast (NTOHL (Gateway), IpSb->DefaultInterface->SubnetMask))
- {
- return EFI_INVALID_PARAMETER;
- }
- for (Index2 = Index1 + 1; Index2 < NewGatewayCount; Index2++) {
- if (EFI_IP4_EQUAL (NewGateway + Index1, NewGateway + Index2)) {
- return EFI_INVALID_PARAMETER;
- }
- }
- }
- if (NewGatewayCount != OldGatewayCount) {
- Tmp = AllocatePool (DataSize);
- if (Tmp == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- } else {
- Tmp = NULL;
- }
- for (Index1 = 0; Index1 < NewGatewayCount; Index1++) {
- //
- // Add the new route entry.
- //
- CopyMem (&Gateway, NewGateway + Index1, sizeof (IP4_ADDR));
- Ip4AddRoute (
- IpSb->DefaultRouteTable,
- IP4_ALLZERO_ADDRESS,
- IP4_ALLZERO_ADDRESS,
- NTOHL (Gateway)
- );
- OneAdded = TRUE;
- }
- if (!OneRemoved && !OneAdded) {
- DataItem->Status = EFI_SUCCESS;
- return EFI_ABORTED;
- } else {
- if (Tmp != NULL) {
- if (DataItem->Data.Ptr != NULL) {
- FreePool (DataItem->Data.Ptr);
- }
- DataItem->Data.Ptr = Tmp;
- }
- CopyMem (DataItem->Data.Ptr, Data, DataSize);
- DataItem->DataSize = DataSize;
- DataItem->Status = EFI_SUCCESS;
- }
- } else {
- //
- // DataSize is 0 and Data is NULL, clean up the Gateway address.
- //
- if (DataItem->Data.Ptr != NULL) {
- FreePool (DataItem->Data.Ptr);
- }
- DataItem->Data.Ptr = NULL;
- DataItem->DataSize = 0;
- DataItem->Status = EFI_NOT_FOUND;
- }
- return EFI_SUCCESS;
- }
- /**
- The work function is to set the DNS server list for the EFI IPv4 network
- stack running on the communication device that this EFI_IP4_CONFIG2_PROTOCOL
- manages. It is not configurable when the policy is Ip4Config2PolicyDhcp.
- The DNS server addresses must be unicast IPv4 addresses.
- @param[in] Instance The pointer to the IP4 config2 instance data.
- @param[in] DataSize The size of the buffer pointed to by Data in bytes.
- @param[in] Data The data buffer to set, points to an array of
- EFI_IPv4_ADDRESS instances.
- @retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type.
- @retval EFI_WRITE_PROTECTED The specified configuration data cannot be set
- under the current policy.
- @retval EFI_INVALID_PARAMETER One or more fields in Data is invalid.
- @retval EFI_OUT_OF_RESOURCES Failed to allocate resources to complete the operation.
- @retval EFI_ABORTED The DNS server addresses to be set equal the current
- configuration.
- @retval EFI_SUCCESS The specified configuration data for the EFI IPv4
- network stack was set.
- **/
- EFI_STATUS
- Ip4Config2SetDnsServer (
- IN IP4_CONFIG2_INSTANCE *Instance,
- IN UINTN DataSize,
- IN VOID *Data
- )
- {
- EFI_STATUS Status;
- IP4_CONFIG2_DATA_ITEM *Item;
- Status = EFI_SUCCESS;
- Item = NULL;
- if (Instance->Policy != Ip4Config2PolicyStatic) {
- return EFI_WRITE_PROTECTED;
- }
- Item = &Instance->DataItem[Ip4Config2DataTypeDnsServer];
- if (DATA_ATTRIB_SET (Item->Attribute, DATA_ATTRIB_VOLATILE)) {
- REMOVE_DATA_ATTRIB (Item->Attribute, DATA_ATTRIB_VOLATILE);
- }
- if ((Data != NULL) && (DataSize != 0)) {
- Status = Ip4Config2SetDnsServerWorker (Instance, DataSize, Data);
- } else {
- //
- // DataSize is 0 and Data is NULL, clean up the DnsServer address.
- //
- if (Item->Data.Ptr != NULL) {
- FreePool (Item->Data.Ptr);
- }
- Item->Data.Ptr = NULL;
- Item->DataSize = 0;
- Item->Status = EFI_NOT_FOUND;
- }
- return Status;
- }
- /**
- Generate the operational state of the interface this IP4 config2 instance manages
- and output in EFI_IP4_CONFIG2_INTERFACE_INFO.
- @param[in] IpSb The pointer to the IP4 service binding instance.
- @param[out] IfInfo The pointer to the IP4 config2 interface information structure.
- **/
- VOID
- Ip4Config2InitIfInfo (
- IN IP4_SERVICE *IpSb,
- OUT EFI_IP4_CONFIG2_INTERFACE_INFO *IfInfo
- )
- {
- UnicodeSPrint (
- IfInfo->Name,
- EFI_IP4_CONFIG2_INTERFACE_INFO_NAME_SIZE,
- L"eth%d",
- IpSb->Ip4Config2Instance.IfIndex
- );
- IfInfo->IfType = IpSb->SnpMode.IfType;
- IfInfo->HwAddressSize = IpSb->SnpMode.HwAddressSize;
- CopyMem (&IfInfo->HwAddress, &IpSb->SnpMode.CurrentAddress, IfInfo->HwAddressSize);
- }
- /**
- Set the configuration for the EFI IPv4 network stack running on the communication
- device this EFI_IP4_CONFIG2_PROTOCOL instance manages.
- This function is used to set the configuration data of type DataType for the EFI
- IPv4 network stack that is running on the communication device that this EFI IPv4
- Configuration Protocol instance manages.
- DataSize is used to calculate the count of structure instances in the Data for
- a DataType in which multiple structure instances are allowed.
- This function is always non-blocking. When setting some type of configuration data,
- an asynchronous process is invoked to check the correctness of the data, such as
- performing Duplicate Address Detection on the manually set local IPv4 addresses.
- EFI_NOT_READY is returned immediately to indicate that such an asynchronous process
- is invoked, and the process is not finished yet. The caller wanting to get the result
- of the asynchronous process is required to call RegisterDataNotify() to register an
- event on the specified configuration data. Once the event is signaled, the caller
- can call GetData() to obtain the configuration data and know the result.
- For other types of configuration data that do not require an asynchronous configuration
- process, the result of the operation is immediately returned.
- @param[in] This The pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.
- @param[in] DataType The type of data to set.
- @param[in] DataSize Size of the buffer pointed to by Data in bytes.
- @param[in] Data The data buffer to set. The type of the data buffer is
- associated with the DataType.
- @retval EFI_SUCCESS The specified configuration data for the EFI IPv6
- network stack was set successfully.
- @retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
- - This is NULL.
- - One or more fields in Data and DataSize do not match the
- requirement of the data type indicated by DataType.
- @retval EFI_WRITE_PROTECTED The specified configuration data is read-only or the specified
- configuration data cannot be set under the current policy.
- @retval EFI_ACCESS_DENIED Another set operation on the specified configuration
- data is already in process.
- @retval EFI_NOT_READY An asynchronous process was invoked to set the specified
- configuration data, and the process is not finished yet.
- @retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type
- indicated by DataType.
- @retval EFI_UNSUPPORTED This DataType is not supported.
- @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
- @retval EFI_DEVICE_ERROR An unexpected system error or network error occurred.
- **/
- EFI_STATUS
- EFIAPI
- EfiIp4Config2SetData (
- IN EFI_IP4_CONFIG2_PROTOCOL *This,
- IN EFI_IP4_CONFIG2_DATA_TYPE DataType,
- IN UINTN DataSize,
- IN VOID *Data
- )
- {
- EFI_TPL OldTpl;
- EFI_STATUS Status;
- IP4_CONFIG2_INSTANCE *Instance;
- IP4_SERVICE *IpSb;
- if ((This == NULL) || ((Data == NULL) && (DataSize != 0)) || ((Data != NULL) && (DataSize == 0))) {
- return EFI_INVALID_PARAMETER;
- }
- if (DataType >= Ip4Config2DataTypeMaximum) {
- return EFI_UNSUPPORTED;
- }
- Instance = IP4_CONFIG2_INSTANCE_FROM_PROTOCOL (This);
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- NET_CHECK_SIGNATURE (IpSb, IP4_SERVICE_SIGNATURE);
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
- Status = Instance->DataItem[DataType].Status;
- if (Status != EFI_NOT_READY) {
- if (Instance->DataItem[DataType].SetData == NULL) {
- //
- // This type of data is readonly.
- //
- Status = EFI_WRITE_PROTECTED;
- } else {
- Status = Instance->DataItem[DataType].SetData (Instance, DataSize, Data);
- if (!EFI_ERROR (Status)) {
- //
- // Fire up the events registered with this type of data.
- //
- NetMapIterate (&Instance->DataItem[DataType].EventMap, Ip4Config2SignalEvent, NULL);
- Ip4Config2WriteConfigData (IpSb->MacString, Instance);
- } else if (Status == EFI_ABORTED) {
- //
- // The SetData is aborted because the data to set is the same with
- // the one maintained.
- //
- Status = EFI_SUCCESS;
- NetMapIterate (&Instance->DataItem[DataType].EventMap, Ip4Config2SignalEvent, NULL);
- }
- }
- } else {
- //
- // Another asynchronous process is on the way.
- //
- Status = EFI_ACCESS_DENIED;
- }
- gBS->RestoreTPL (OldTpl);
- return Status;
- }
- /**
- Get the configuration data for the EFI IPv4 network stack running on the communication
- device that this EFI_IP4_CONFIG2_PROTOCOL instance manages.
- This function returns the configuration data of type DataType for the EFI IPv4 network
- stack running on the communication device that this EFI IPv4 Configuration Protocol instance
- manages.
- The caller is responsible for allocating the buffer used to return the specified
- configuration data. The required size will be returned to the caller if the size of
- the buffer is too small.
- EFI_NOT_READY is returned if the specified configuration data is not ready due to an
- asynchronous configuration process already in progress. The caller can call RegisterDataNotify()
- to register an event on the specified configuration data. Once the asynchronous configuration
- process is finished, the event will be signaled, and a subsequent GetData() call will return
- the specified configuration data.
- @param[in] This Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.
- @param[in] DataType The type of data to get.
- @param[in, out] DataSize On input, in bytes, the size of Data. On output, in bytes, the
- size of buffer required to store the specified configuration data.
- @param[in] Data The data buffer in which the configuration data is returned. The
- type of the data buffer is associated with the DataType.
- This is an optional parameter that may be NULL.
- @retval EFI_SUCCESS The specified configuration data was obtained successfully.
- @retval EFI_INVALID_PARAMETER One or more of the followings are TRUE:
- - This is NULL.
- - DataSize is NULL.
- - Data is NULL if *DataSize is not zero.
- @retval EFI_BUFFER_TOO_SMALL The size of Data is too small for the specified configuration data,
- and the required size is returned in DataSize.
- @retval EFI_NOT_READY The specified configuration data is not ready due to an
- asynchronous configuration process already in progress.
- @retval EFI_NOT_FOUND The specified configuration data is not found.
- **/
- EFI_STATUS
- EFIAPI
- EfiIp4Config2GetData (
- IN EFI_IP4_CONFIG2_PROTOCOL *This,
- IN EFI_IP4_CONFIG2_DATA_TYPE DataType,
- IN OUT UINTN *DataSize,
- IN VOID *Data OPTIONAL
- )
- {
- EFI_TPL OldTpl;
- EFI_STATUS Status;
- IP4_CONFIG2_INSTANCE *Instance;
- IP4_CONFIG2_DATA_ITEM *DataItem;
- if ((This == NULL) || (DataSize == NULL) || ((*DataSize != 0) && (Data == NULL))) {
- return EFI_INVALID_PARAMETER;
- }
- if (DataType >= Ip4Config2DataTypeMaximum) {
- return EFI_NOT_FOUND;
- }
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
- Instance = IP4_CONFIG2_INSTANCE_FROM_PROTOCOL (This);
- DataItem = &Instance->DataItem[DataType];
- Status = Instance->DataItem[DataType].Status;
- if (!EFI_ERROR (Status)) {
- if (DataItem->GetData != NULL) {
- Status = DataItem->GetData (Instance, DataSize, Data);
- } else if (*DataSize < Instance->DataItem[DataType].DataSize) {
- //
- // Update the buffer length.
- //
- *DataSize = Instance->DataItem[DataType].DataSize;
- Status = EFI_BUFFER_TOO_SMALL;
- } else {
- *DataSize = Instance->DataItem[DataType].DataSize;
- CopyMem (Data, Instance->DataItem[DataType].Data.Ptr, *DataSize);
- }
- }
- gBS->RestoreTPL (OldTpl);
- return Status;
- }
- /**
- Register an event that is signaled whenever a configuration process on the specified
- configuration data is done.
- This function registers an event that is to be signaled whenever a configuration
- process on the specified configuration data is performed. An event can be registered
- for a different DataType simultaneously. The caller is responsible for determining
- which type of configuration data causes the signaling of the event in such an event.
- @param[in] This Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.
- @param[in] DataType The type of data to unregister the event for.
- @param[in] Event The event to register.
- @retval EFI_SUCCESS The notification event for the specified configuration data is
- registered.
- @retval EFI_INVALID_PARAMETER This is NULL or Event is NULL.
- @retval EFI_UNSUPPORTED The configuration data type specified by DataType is not
- supported.
- @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
- @retval EFI_ACCESS_DENIED The Event is already registered for the DataType.
- **/
- EFI_STATUS
- EFIAPI
- EfiIp4Config2RegisterDataNotify (
- IN EFI_IP4_CONFIG2_PROTOCOL *This,
- IN EFI_IP4_CONFIG2_DATA_TYPE DataType,
- IN EFI_EVENT Event
- )
- {
- EFI_TPL OldTpl;
- EFI_STATUS Status;
- IP4_CONFIG2_INSTANCE *Instance;
- NET_MAP *EventMap;
- NET_MAP_ITEM *Item;
- if ((This == NULL) || (Event == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
- if (DataType >= Ip4Config2DataTypeMaximum) {
- return EFI_UNSUPPORTED;
- }
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
- Instance = IP4_CONFIG2_INSTANCE_FROM_PROTOCOL (This);
- EventMap = &Instance->DataItem[DataType].EventMap;
- //
- // Check whether this event is already registered for this DataType.
- //
- Item = NetMapFindKey (EventMap, Event);
- if (Item == NULL) {
- Status = NetMapInsertTail (EventMap, Event, NULL);
- if (EFI_ERROR (Status)) {
- Status = EFI_OUT_OF_RESOURCES;
- }
- } else {
- Status = EFI_ACCESS_DENIED;
- }
- gBS->RestoreTPL (OldTpl);
- return Status;
- }
- /**
- Remove a previously registered event for the specified configuration data.
- @param This The pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.
- @param DataType The type of data to remove from the previously
- registered event.
- @param Event The event to be unregistered.
- @retval EFI_SUCCESS The event registered for the specified
- configuration data was removed.
- @retval EFI_INVALID_PARAMETER This is NULL or Event is NULL.
- @retval EFI_NOT_FOUND The Event has not been registered for the
- specified DataType.
- **/
- EFI_STATUS
- EFIAPI
- EfiIp4Config2UnregisterDataNotify (
- IN EFI_IP4_CONFIG2_PROTOCOL *This,
- IN EFI_IP4_CONFIG2_DATA_TYPE DataType,
- IN EFI_EVENT Event
- )
- {
- EFI_TPL OldTpl;
- EFI_STATUS Status;
- IP4_CONFIG2_INSTANCE *Instance;
- NET_MAP_ITEM *Item;
- if ((This == NULL) || (Event == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
- if (DataType >= Ip4Config2DataTypeMaximum) {
- return EFI_NOT_FOUND;
- }
- OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
- Instance = IP4_CONFIG2_INSTANCE_FROM_PROTOCOL (This);
- Item = NetMapFindKey (&Instance->DataItem[DataType].EventMap, Event);
- if (Item != NULL) {
- NetMapRemoveItem (&Instance->DataItem[DataType].EventMap, Item, NULL);
- Status = EFI_SUCCESS;
- } else {
- Status = EFI_NOT_FOUND;
- }
- gBS->RestoreTPL (OldTpl);
- return Status;
- }
- /**
- Initialize an IP4_CONFIG2_INSTANCE.
- @param[out] Instance The buffer of IP4_CONFIG2_INSTANCE to be initialized.
- @retval EFI_OUT_OF_RESOURCES Failed to allocate resources to complete the operation.
- @retval EFI_SUCCESS The IP4_CONFIG2_INSTANCE initialized successfully.
- **/
- EFI_STATUS
- Ip4Config2InitInstance (
- OUT IP4_CONFIG2_INSTANCE *Instance
- )
- {
- IP4_SERVICE *IpSb;
- IP4_CONFIG2_INSTANCE *TmpInstance;
- LIST_ENTRY *Entry;
- EFI_STATUS Status;
- UINTN Index;
- UINT16 IfIndex;
- IP4_CONFIG2_DATA_ITEM *DataItem;
- IpSb = IP4_SERVICE_FROM_IP4_CONFIG2_INSTANCE (Instance);
- Instance->Signature = IP4_CONFIG2_INSTANCE_SIGNATURE;
- //
- // Determine the index of this interface.
- //
- IfIndex = 0;
- NET_LIST_FOR_EACH (Entry, &mIp4Config2InstanceList) {
- TmpInstance = NET_LIST_USER_STRUCT_S (Entry, IP4_CONFIG2_INSTANCE, Link, IP4_CONFIG2_INSTANCE_SIGNATURE);
- if (TmpInstance->IfIndex > IfIndex) {
- //
- // There is a sequence hole because some interface is down.
- //
- break;
- }
- IfIndex++;
- }
- Instance->IfIndex = IfIndex;
- NetListInsertBefore (Entry, &Instance->Link);
- for (Index = 0; Index < Ip4Config2DataTypeMaximum; Index++) {
- //
- // Initialize the event map for each data item.
- //
- NetMapInit (&Instance->DataItem[Index].EventMap);
- }
- //
- // Initialize each data type: associate storage and set data size for the
- // fixed size data types, hook the SetData function, set the data attribute.
- //
- DataItem = &Instance->DataItem[Ip4Config2DataTypeInterfaceInfo];
- DataItem->GetData = Ip4Config2GetIfInfo;
- DataItem->Data.Ptr = &Instance->InterfaceInfo;
- DataItem->DataSize = sizeof (Instance->InterfaceInfo);
- SET_DATA_ATTRIB (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED | DATA_ATTRIB_VOLATILE);
- Ip4Config2InitIfInfo (IpSb, &Instance->InterfaceInfo);
- DataItem = &Instance->DataItem[Ip4Config2DataTypePolicy];
- DataItem->SetData = Ip4Config2SetPolicy;
- DataItem->Data.Ptr = &Instance->Policy;
- DataItem->DataSize = sizeof (Instance->Policy);
- Instance->Policy = Ip4Config2PolicyStatic;
- SET_DATA_ATTRIB (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED);
- DataItem = &Instance->DataItem[Ip4Config2DataTypeManualAddress];
- DataItem->SetData = Ip4Config2SetManualAddress;
- DataItem->Status = EFI_NOT_FOUND;
- DataItem = &Instance->DataItem[Ip4Config2DataTypeGateway];
- DataItem->SetData = Ip4Config2SetGateway;
- DataItem->Status = EFI_NOT_FOUND;
- DataItem = &Instance->DataItem[Ip4Config2DataTypeDnsServer];
- DataItem->SetData = Ip4Config2SetDnsServer;
- DataItem->Status = EFI_NOT_FOUND;
- Instance->Configured = TRUE;
- //
- // Try to read the config data from NV variable.
- // If not found, write initialized config data into NV variable
- // as a default config data.
- //
- Status = Ip4Config2ReadConfigData (IpSb->MacString, Instance);
- if (Status == EFI_NOT_FOUND) {
- Status = Ip4Config2WriteConfigData (IpSb->MacString, Instance);
- }
- if (EFI_ERROR (Status)) {
- return Status;
- }
- Instance->Ip4Config2.SetData = EfiIp4Config2SetData;
- Instance->Ip4Config2.GetData = EfiIp4Config2GetData;
- Instance->Ip4Config2.RegisterDataNotify = EfiIp4Config2RegisterDataNotify;
- Instance->Ip4Config2.UnregisterDataNotify = EfiIp4Config2UnregisterDataNotify;
- //
- // Publish the IP4 configuration form
- //
- return Ip4Config2FormInit (Instance);
- }
- /**
- Release an IP4_CONFIG2_INSTANCE.
- @param[in, out] Instance The buffer of IP4_CONFIG2_INSTANCE to be freed.
- **/
- VOID
- Ip4Config2CleanInstance (
- IN OUT IP4_CONFIG2_INSTANCE *Instance
- )
- {
- UINTN Index;
- IP4_CONFIG2_DATA_ITEM *DataItem;
- if (Instance->DeclineAddress != NULL) {
- FreePool (Instance->DeclineAddress);
- }
- if (!Instance->Configured) {
- return;
- }
- if (Instance->Dhcp4Handle != NULL) {
- Ip4Config2DestroyDhcp4 (Instance);
- }
- //
- // Close the event.
- //
- if (Instance->Dhcp4Event != NULL) {
- gBS->CloseEvent (Instance->Dhcp4Event);
- Instance->Dhcp4Event = NULL;
- }
- for (Index = 0; Index < Ip4Config2DataTypeMaximum; Index++) {
- DataItem = &Instance->DataItem[Index];
- if (!DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED)) {
- if (DataItem->Data.Ptr != NULL) {
- FreePool (DataItem->Data.Ptr);
- }
- DataItem->Data.Ptr = NULL;
- DataItem->DataSize = 0;
- }
- NetMapClean (&Instance->DataItem[Index].EventMap);
- }
- Ip4Config2FormUnload (Instance);
- RemoveEntryList (&Instance->Link);
- }
- /**
- The event handle for IP4 auto reconfiguration. The original default
- interface and route table will be removed as the default.
- @param[in] Context The IP4 service binding instance.
- **/
- VOID
- EFIAPI
- Ip4AutoReconfigCallBackDpc (
- IN VOID *Context
- )
- {
- IP4_SERVICE *IpSb;
- IpSb = (IP4_SERVICE *)Context;
- NET_CHECK_SIGNATURE (IpSb, IP4_SERVICE_SIGNATURE);
- if (IpSb->State > IP4_SERVICE_UNSTARTED) {
- IpSb->State = IP4_SERVICE_UNSTARTED;
- }
- IpSb->Reconfig = TRUE;
- Ip4StartAutoConfig (&IpSb->Ip4Config2Instance);
- return;
- }
- /**
- Request Ip4AutoReconfigCallBackDpc as a DPC at TPL_CALLBACK.
- @param Event The event that is signalled.
- @param Context The IP4 service binding instance.
- **/
- VOID
- EFIAPI
- Ip4AutoReconfigCallBack (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
- {
- //
- // Request Ip4AutoReconfigCallBackDpc as a DPC at TPL_CALLBACK
- //
- QueueDpc (TPL_CALLBACK, Ip4AutoReconfigCallBackDpc, Context);
- }
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