From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/edk2/NetworkPkg/Ip6Dxe/Ip6ConfigImpl.c | 2533 +++++++++++++++++++++++++++
1 file changed, 2533 insertions(+)
create mode 100644 roms/edk2/NetworkPkg/Ip6Dxe/Ip6ConfigImpl.c
(limited to 'roms/edk2/NetworkPkg/Ip6Dxe/Ip6ConfigImpl.c')
diff --git a/roms/edk2/NetworkPkg/Ip6Dxe/Ip6ConfigImpl.c b/roms/edk2/NetworkPkg/Ip6Dxe/Ip6ConfigImpl.c
new file mode 100644
index 000000000..ab3801336
--- /dev/null
+++ b/roms/edk2/NetworkPkg/Ip6Dxe/Ip6ConfigImpl.c
@@ -0,0 +1,2533 @@
+/** @file
+ The implementation of EFI IPv6 Configuration Protocol.
+
+ Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) Microsoft Corporation.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "Ip6Impl.h"
+
+LIST_ENTRY mIp6ConfigInstanceList = {&mIp6ConfigInstanceList, &mIp6ConfigInstanceList};
+
+/**
+ The event process routine when the DHCPv6 service binding protocol is installed
+ in the system.
+
+ @param[in] Event Not used.
+ @param[in] Context Pointer to the IP6 config instance data.
+
+**/
+VOID
+EFIAPI
+Ip6ConfigOnDhcp6SbInstalled (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ );
+
+/**
+ Update the current policy to NewPolicy. During the transition
+ period, the default router list, on-link prefix list, autonomous prefix list
+ and address list in all interfaces will be released.
+
+ @param[in] IpSb The IP6 service binding instance.
+ @param[in] NewPolicy The new policy to be updated to.
+
+**/
+VOID
+Ip6ConfigOnPolicyChanged (
+ IN IP6_SERVICE *IpSb,
+ IN EFI_IP6_CONFIG_POLICY NewPolicy
+ )
+{
+ LIST_ENTRY *Entry;
+ LIST_ENTRY *Entry2;
+ LIST_ENTRY *Next;
+ IP6_INTERFACE *IpIf;
+ IP6_DAD_ENTRY *DadEntry;
+ IP6_DELAY_JOIN_LIST *DelayNode;
+ IP6_ADDRESS_INFO *AddrInfo;
+ IP6_PROTOCOL *Instance;
+ BOOLEAN Recovery;
+
+ Recovery = FALSE;
+
+ //
+ // Currently there are only two policies: Manual and Automatic. Regardless of
+ // what transition is going on, i.e., Manual -> Automatic and Automatic ->
+ // Manual, we have to free default router list, on-link prefix list, autonomous
+ // prefix list, address list in all the interfaces and destroy any IPv6 child
+ // instance whose local IP is neither 0 nor the link-local address.
+ //
+ Ip6CleanDefaultRouterList (IpSb);
+ Ip6CleanPrefixListTable (IpSb, &IpSb->OnlinkPrefix);
+ Ip6CleanPrefixListTable (IpSb, &IpSb->AutonomousPrefix);
+
+ //
+ // It's tricky... If the LinkLocal address is O.K., add back the link-local
+ // prefix to the on-link prefix table.
+ //
+ if (IpSb->LinkLocalOk) {
+ Ip6CreatePrefixListEntry (
+ IpSb,
+ TRUE,
+ (UINT32) IP6_INFINIT_LIFETIME,
+ (UINT32) IP6_INFINIT_LIFETIME,
+ IP6_LINK_LOCAL_PREFIX_LENGTH,
+ &IpSb->LinkLocalAddr
+ );
+ }
+
+ if (!IsListEmpty (&IpSb->DefaultInterface->AddressList) && IpSb->DefaultInterface->AddressCount > 0) {
+ //
+ // If any IPv6 children (Instance) in configured state and use global unicast address, it will be
+ // destroyed in Ip6RemoveAddr() function later. Then, the upper layer driver's Stop() function will be
+ // called, which may break the upper layer network stacks. So, the driver should take the responsibility
+ // for the recovery by using ConnectController() after Ip6RemoveAddr().
+ // Here, just check whether need to recover the upper layer network stacks later.
+ //
+ NET_LIST_FOR_EACH (Entry, &IpSb->DefaultInterface->AddressList) {
+ AddrInfo = NET_LIST_USER_STRUCT_S (Entry, IP6_ADDRESS_INFO, Link, IP6_ADDR_INFO_SIGNATURE);
+ if (!IsListEmpty (&IpSb->Children)) {
+ NET_LIST_FOR_EACH (Entry2, &IpSb->Children) {
+ Instance = NET_LIST_USER_STRUCT_S (Entry2, IP6_PROTOCOL, Link, IP6_PROTOCOL_SIGNATURE);
+ if ((Instance->State == IP6_STATE_CONFIGED) && EFI_IP6_EQUAL (&Instance->ConfigData.StationAddress, &AddrInfo->Address)) {
+ Recovery = TRUE;
+ break;
+ }
+ }
+ }
+ }
+
+ //
+ // All IPv6 children that use global unicast address as its source address
+ // should be destroyed now. The survivers are those use the link-local address
+ // or the unspecified address as the source address.
+ // TODO: Conduct a check here.
+ Ip6RemoveAddr (
+ IpSb,
+ &IpSb->DefaultInterface->AddressList,
+ &IpSb->DefaultInterface->AddressCount,
+ NULL,
+ 0
+ );
+
+ if (IpSb->Controller != NULL && Recovery) {
+ //
+ // ConnectController() to recover the upper layer network stacks.
+ //
+ gBS->ConnectController (IpSb->Controller, NULL, NULL, TRUE);
+ }
+ }
+
+
+ NET_LIST_FOR_EACH (Entry, &IpSb->Interfaces) {
+ //
+ // remove all pending delay node and DAD entries for the global addresses.
+ //
+ IpIf = NET_LIST_USER_STRUCT_S (Entry, IP6_INTERFACE, Link, IP6_INTERFACE_SIGNATURE);
+
+ NET_LIST_FOR_EACH_SAFE (Entry2, Next, &IpIf->DelayJoinList) {
+ DelayNode = NET_LIST_USER_STRUCT (Entry2, IP6_DELAY_JOIN_LIST, Link);
+ if (!NetIp6IsLinkLocalAddr (&DelayNode->AddressInfo->Address)) {
+ RemoveEntryList (&DelayNode->Link);
+ FreePool (DelayNode);
+ }
+ }
+
+ NET_LIST_FOR_EACH_SAFE (Entry2, Next, &IpIf->DupAddrDetectList) {
+ DadEntry = NET_LIST_USER_STRUCT_S (Entry2, IP6_DAD_ENTRY, Link, IP6_DAD_ENTRY_SIGNATURE);
+
+ if (!NetIp6IsLinkLocalAddr (&DadEntry->AddressInfo->Address)) {
+ //
+ // Fail this DAD entry if the address is not link-local.
+ //
+ Ip6OnDADFinished (FALSE, IpIf, DadEntry);
+ }
+ }
+ }
+
+ if (NewPolicy == Ip6ConfigPolicyAutomatic) {
+ //
+ // Set parameters to trigger router solicitation sending in timer handler.
+ //
+ IpSb->RouterAdvertiseReceived = FALSE;
+ IpSb->SolicitTimer = IP6_MAX_RTR_SOLICITATIONS;
+ //
+ // delay 1 second
+ //
+ IpSb->Ticks = (UINT32) IP6_GET_TICKS (IP6_ONE_SECOND_IN_MS);
+ }
+}
+
+/**
+ The work function to trigger the DHCPv6 process to perform a stateful autoconfiguration.
+
+ @param[in] Instance Pointer to the IP6 config instance data.
+ @param[in] OtherInfoOnly If FALSE, get stateful address and other information
+ via DHCPv6. Otherwise, only get the other information.
+
+ @retval EFI_SUCCESS The operation finished successfully.
+ @retval EFI_UNSUPPORTED The DHCP6 driver is not available.
+
+**/
+EFI_STATUS
+Ip6ConfigStartStatefulAutoConfig (
+ IN IP6_CONFIG_INSTANCE *Instance,
+ IN BOOLEAN OtherInfoOnly
+ )
+{
+ EFI_STATUS Status;
+ IP6_SERVICE *IpSb;
+ EFI_DHCP6_CONFIG_DATA Dhcp6CfgData;
+ EFI_DHCP6_PROTOCOL *Dhcp6;
+ EFI_DHCP6_PACKET_OPTION *OptList[1];
+ UINT16 OptBuf[4];
+ EFI_DHCP6_PACKET_OPTION *Oro;
+ EFI_DHCP6_RETRANSMISSION InfoReqReXmit;
+
+ //
+ // A host must not invoke stateful address configuration if it is already
+ // participating in the statuful protocol as a result of an earlier advertisement.
+ //
+ if (Instance->Dhcp6Handle != NULL) {
+ return EFI_SUCCESS;
+ }
+
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+
+ Instance->OtherInfoOnly = OtherInfoOnly;
+
+ Status = NetLibCreateServiceChild (
+ IpSb->Controller,
+ IpSb->Image,
+ &gEfiDhcp6ServiceBindingProtocolGuid,
+ &Instance->Dhcp6Handle
+ );
+
+ if (Status == EFI_UNSUPPORTED) {
+ //
+ // No DHCPv6 Service Binding protocol, register a notify.
+ //
+ if (Instance->Dhcp6SbNotifyEvent == NULL) {
+ Instance->Dhcp6SbNotifyEvent = EfiCreateProtocolNotifyEvent (
+ &gEfiDhcp6ServiceBindingProtocolGuid,
+ TPL_CALLBACK,
+ Ip6ConfigOnDhcp6SbInstalled,
+ (VOID *) Instance,
+ &Instance->Registration
+ );
+ }
+ }
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (Instance->Dhcp6SbNotifyEvent != NULL) {
+ gBS->CloseEvent (Instance->Dhcp6SbNotifyEvent);
+ }
+
+ Status = gBS->OpenProtocol (
+ Instance->Dhcp6Handle,
+ &gEfiDhcp6ProtocolGuid,
+ (VOID **) &Instance->Dhcp6,
+ IpSb->Image,
+ IpSb->Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Dhcp6 = Instance->Dhcp6;
+ Dhcp6->Configure (Dhcp6, NULL);
+
+ //
+ // Set the exta options to send. Here we only want the option request option
+ // with DNS SERVERS.
+ //
+ Oro = (EFI_DHCP6_PACKET_OPTION *) OptBuf;
+ Oro->OpCode = HTONS (DHCP6_OPT_ORO);
+ Oro->OpLen = HTONS (2);
+ *((UINT16 *) &Oro->Data[0]) = HTONS (DHCP6_OPT_DNS_SERVERS);
+ OptList[0] = Oro;
+
+ Status = EFI_SUCCESS;
+
+ if (!OtherInfoOnly) {
+ //
+ // Get stateful address and other information via DHCPv6.
+ //
+ Dhcp6CfgData.Dhcp6Callback = NULL;
+ Dhcp6CfgData.CallbackContext = NULL;
+ Dhcp6CfgData.OptionCount = 1;
+ Dhcp6CfgData.OptionList = &OptList[0];
+ Dhcp6CfgData.IaDescriptor.Type = EFI_DHCP6_IA_TYPE_NA;
+ Dhcp6CfgData.IaDescriptor.IaId = Instance->IaId;
+ Dhcp6CfgData.IaInfoEvent = Instance->Dhcp6Event;
+ Dhcp6CfgData.ReconfigureAccept = FALSE;
+ Dhcp6CfgData.RapidCommit = FALSE;
+ Dhcp6CfgData.SolicitRetransmission = NULL;
+
+ Status = Dhcp6->Configure (Dhcp6, &Dhcp6CfgData);
+
+ if (!EFI_ERROR (Status)) {
+
+ if (IpSb->LinkLocalOk) {
+ Status = Dhcp6->Start (Dhcp6);
+ } else {
+ IpSb->Dhcp6NeedStart = TRUE;
+ }
+
+ }
+ } else {
+ //
+ // Only get other information via DHCPv6, this doesn't require a config
+ // action.
+ //
+ InfoReqReXmit.Irt = 4;
+ InfoReqReXmit.Mrc = 64;
+ InfoReqReXmit.Mrt = 60;
+ InfoReqReXmit.Mrd = 0;
+
+ if (IpSb->LinkLocalOk) {
+ Status = Dhcp6->InfoRequest (
+ Dhcp6,
+ TRUE,
+ Oro,
+ 0,
+ NULL,
+ &InfoReqReXmit,
+ Instance->Dhcp6Event,
+ Ip6ConfigOnDhcp6Reply,
+ Instance
+ );
+ } else {
+ IpSb->Dhcp6NeedInfoRequest = TRUE;
+ }
+
+ }
+
+ return Status;
+}
+
+/**
+ 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.
+
+**/
+EFI_STATUS
+EFIAPI
+Ip6ConfigSignalEvent (
+ 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
+ gEfiIp6ConfigProtocolGuid. 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 IP6_CONFIG_INSTANCE.
+
+ @param[in] VarName The pointer to the variable name
+ @param[in, out] Instance The pointer to the IP6 config 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
+Ip6ConfigReadConfigData (
+ IN CHAR16 *VarName,
+ IN OUT IP6_CONFIG_INSTANCE *Instance
+ )
+{
+ EFI_STATUS Status;
+ UINTN VarSize;
+ IP6_CONFIG_VARIABLE *Variable;
+ IP6_CONFIG_DATA_ITEM *DataItem;
+ UINTN Index;
+ IP6_CONFIG_DATA_RECORD DataRecord;
+ CHAR8 *Data;
+
+ //
+ // Try to read the configuration variable.
+ //
+ VarSize = 0;
+ Status = gRT->GetVariable (
+ VarName,
+ &gEfiIp6ConfigProtocolGuid,
+ 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,
+ &gEfiIp6ConfigProtocolGuid,
+ NULL,
+ &VarSize,
+ Variable
+ );
+ if (EFI_ERROR (Status) || (UINT16) (~NetblockChecksum ((UINT8 *) Variable, (UINT32) VarSize)) != 0) {
+ //
+ // GetVariable error or the variable is corrupted.
+ //
+ goto Error;
+ }
+
+ //
+ // Get the IAID we use.
+ //
+ Instance->IaId = Variable->IaId;
+
+ 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.
+ // Check that the length is contained within the variable before allocating.
+ //
+ if (DataRecord.DataSize > VarSize - DataRecord.Offset) {
+ goto Error;
+ }
+
+ 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;
+
+Error:
+ //
+ // Fall back to the default value.
+ //
+ if (Variable != NULL) {
+ FreePool (Variable);
+ }
+
+ //
+ // Remove the problematic variable and return EFI_NOT_FOUND, a new
+ // variable will be set again.
+ //
+ gRT->SetVariable (
+ VarName,
+ &gEfiIp6ConfigProtocolGuid,
+ IP6_CONFIG_VARIABLE_ATTRIBUTE,
+ 0,
+ NULL
+ );
+
+ return EFI_NOT_FOUND;
+}
+
+/**
+ Write the configuration data from IP6_CONFIG_INSTANCE to variable storage.
+
+ @param[in] VarName The pointer to the variable name.
+ @param[in] Instance The pointer to the IP6 configuration 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
+Ip6ConfigWriteConfigData (
+ IN CHAR16 *VarName,
+ IN IP6_CONFIG_INSTANCE *Instance
+ )
+{
+ UINTN Index;
+ UINTN VarSize;
+ IP6_CONFIG_DATA_ITEM *DataItem;
+ IP6_CONFIG_VARIABLE *Variable;
+ IP6_CONFIG_DATA_RECORD *DataRecord;
+ CHAR8 *Heap;
+ EFI_STATUS Status;
+
+ VarSize = sizeof (IP6_CONFIG_VARIABLE) - sizeof (IP6_CONFIG_DATA_RECORD);
+
+ for (Index = 0; Index < Ip6ConfigDataTypeMaximum; Index++) {
+
+ DataItem = &Instance->DataItem[Index];
+ if (!DATA_ATTRIB_SET (DataItem->Attribute, DATA_ATTRIB_VOLATILE) && !EFI_ERROR (DataItem->Status)) {
+
+ VarSize += sizeof (IP6_CONFIG_DATA_RECORD) + DataItem->DataSize;
+ }
+ }
+
+ Variable = AllocatePool (VarSize);
+ if (Variable == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ Variable->IaId = Instance->IaId;
+ Heap = (CHAR8 *) Variable + VarSize;
+ Variable->DataRecordCount = 0;
+
+ for (Index = 0; Index < Ip6ConfigDataTypeMaximum; 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_IP6_CONFIG_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,
+ &gEfiIp6ConfigProtocolGuid,
+ IP6_CONFIG_VARIABLE_ATTRIBUTE,
+ VarSize,
+ Variable
+ );
+
+ FreePool (Variable);
+
+ return Status;
+}
+
+/**
+ The work function for EfiIp6ConfigGetData() to get the interface information
+ of the communication device this IP6Config instance manages.
+
+ @param[in] Instance Pointer to the IP6 config 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
+Ip6ConfigGetIfInfo (
+ IN IP6_CONFIG_INSTANCE *Instance,
+ IN OUT UINTN *DataSize,
+ IN VOID *Data OPTIONAL
+ )
+{
+ IP6_SERVICE *IpSb;
+ UINTN Length;
+ IP6_CONFIG_DATA_ITEM *Item;
+ EFI_IP6_CONFIG_INTERFACE_INFO *IfInfo;
+ UINT32 AddressCount;
+ UINT32 RouteCount;
+
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+ Length = sizeof (EFI_IP6_CONFIG_INTERFACE_INFO);
+
+ //
+ // Calculate the required length, add the buffer size for AddressInfo and
+ // RouteTable
+ //
+ Ip6BuildEfiAddressList (IpSb, &AddressCount, NULL);
+ Ip6BuildEfiRouteTable (IpSb->RouteTable, &RouteCount, NULL);
+
+ Length += AddressCount * sizeof (EFI_IP6_ADDRESS_INFO) + RouteCount * sizeof (EFI_IP6_ROUTE_TABLE);
+
+ if (*DataSize < Length) {
+ *DataSize = Length;
+ return EFI_BUFFER_TOO_SMALL;
+ }
+
+ //
+ // Copy the fixed size part of the interface info.
+ //
+ Item = &Instance->DataItem[Ip6ConfigDataTypeInterfaceInfo];
+ IfInfo = (EFI_IP6_CONFIG_INTERFACE_INFO *) Data;
+ CopyMem (IfInfo, Item->Data.Ptr, sizeof (EFI_IP6_CONFIG_INTERFACE_INFO));
+
+ //
+ // AddressInfo
+ //
+ IfInfo->AddressInfo = (EFI_IP6_ADDRESS_INFO *) (IfInfo + 1);
+ Ip6BuildEfiAddressList (IpSb, &IfInfo->AddressInfoCount, &IfInfo->AddressInfo);
+
+ //
+ // RouteTable
+ //
+ IfInfo->RouteTable = (EFI_IP6_ROUTE_TABLE *) (IfInfo->AddressInfo + IfInfo->AddressInfoCount);
+ Ip6BuildEfiRouteTable (IpSb->RouteTable, &IfInfo->RouteCount, &IfInfo->RouteTable);
+
+ if (IfInfo->AddressInfoCount == 0) {
+ IfInfo->AddressInfo = NULL;
+ }
+
+ if (IfInfo->RouteCount == 0) {
+ IfInfo->RouteTable = NULL;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The work function for EfiIp6ConfigSetData() to set the alternative interface ID
+ for the communication device managed by this IP6Config instance, if the link local
+ IPv6 addresses generated from the interface ID based on the default source the
+ EFI IPv6 Protocol uses is a duplicate address.
+
+ @param[in] Instance Pointer to the IP6 configuration 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,
+ 8 bytes.
+ @retval EFI_SUCCESS The specified configuration data for the EFI IPv6
+ network stack was set.
+
+**/
+EFI_STATUS
+Ip6ConfigSetAltIfId (
+ IN IP6_CONFIG_INSTANCE *Instance,
+ IN UINTN DataSize,
+ IN VOID *Data
+ )
+{
+ EFI_IP6_CONFIG_INTERFACE_ID *OldIfId;
+ EFI_IP6_CONFIG_INTERFACE_ID *NewIfId;
+ IP6_CONFIG_DATA_ITEM *DataItem;
+
+ if (DataSize != sizeof (EFI_IP6_CONFIG_INTERFACE_ID)) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeAltInterfaceId];
+ OldIfId = DataItem->Data.AltIfId;
+ NewIfId = (EFI_IP6_CONFIG_INTERFACE_ID *) Data;
+
+ CopyMem (OldIfId, NewIfId, DataSize);
+ DataItem->Status = EFI_SUCCESS;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The work function for EfiIp6ConfigSetData() to set the general configuration
+ policy for the EFI IPv6 network stack that is running on the communication device
+ managed by this IP6Config instance. The policy will affect other configuration settings.
+
+ @param[in] Instance Pointer to the IP6 config 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
+Ip6ConfigSetPolicy (
+ IN IP6_CONFIG_INSTANCE *Instance,
+ IN UINTN DataSize,
+ IN VOID *Data
+ )
+{
+ EFI_IP6_CONFIG_POLICY NewPolicy;
+ IP6_CONFIG_DATA_ITEM *DataItem;
+ IP6_SERVICE *IpSb;
+
+ if (DataSize != sizeof (EFI_IP6_CONFIG_POLICY)) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ NewPolicy = *((EFI_IP6_CONFIG_POLICY *) Data);
+
+ if (NewPolicy > Ip6ConfigPolicyAutomatic) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (NewPolicy == Instance->Policy) {
+
+ return EFI_ABORTED;
+ } else {
+ //
+ // Clean the ManualAddress, Gateway and DnsServers, shrink the variable
+ // data size, and fire up all the related events.
+ //
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeManualAddress];
+ if (DataItem->Data.Ptr != NULL) {
+ FreePool (DataItem->Data.Ptr);
+ }
+ DataItem->Data.Ptr = NULL;
+ DataItem->DataSize = 0;
+ DataItem->Status = EFI_NOT_FOUND;
+ NetMapIterate (&DataItem->EventMap, Ip6ConfigSignalEvent, NULL);
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeGateway];
+ if (DataItem->Data.Ptr != NULL) {
+ FreePool (DataItem->Data.Ptr);
+ }
+ DataItem->Data.Ptr = NULL;
+ DataItem->DataSize = 0;
+ DataItem->Status = EFI_NOT_FOUND;
+ NetMapIterate (&DataItem->EventMap, Ip6ConfigSignalEvent, NULL);
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeDnsServer];
+ DataItem->Data.Ptr = NULL;
+ DataItem->DataSize = 0;
+ DataItem->Status = EFI_NOT_FOUND;
+ NetMapIterate (&DataItem->EventMap, Ip6ConfigSignalEvent, NULL);
+
+ if (NewPolicy == Ip6ConfigPolicyManual) {
+ //
+ // The policy is changed from automatic to manual. Stop the DHCPv6 process
+ // and destroy the DHCPv6 child.
+ //
+ if (Instance->Dhcp6Handle != NULL) {
+ Ip6ConfigDestroyDhcp6 (Instance);
+ }
+ }
+
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+ Ip6ConfigOnPolicyChanged (IpSb, NewPolicy);
+
+ Instance->Policy = NewPolicy;
+
+ return EFI_SUCCESS;
+ }
+}
+
+/**
+ The work function for EfiIp6ConfigSetData() to set the number of consecutive
+ Neighbor Solicitation messages sent while performing Duplicate Address Detection
+ on a tentative address. A value of ZERO indicates that Duplicate Address Detection
+ will not be performed on a tentative address.
+
+ @param[in] Instance The Instance Pointer to the IP6 config 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_ABORTED The new transmit count equals the current configuration.
+ @retval EFI_SUCCESS The specified configuration data for the EFI IPv6
+ network stack was set.
+
+**/
+EFI_STATUS
+Ip6ConfigSetDadXmits (
+ IN IP6_CONFIG_INSTANCE *Instance,
+ IN UINTN DataSize,
+ IN VOID *Data
+ )
+{
+ EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS *OldDadXmits;
+
+ if (DataSize != sizeof (EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS)) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ OldDadXmits = Instance->DataItem[Ip6ConfigDataTypeDupAddrDetectTransmits].Data.DadXmits;
+
+ if ((*(UINT32 *) Data) == OldDadXmits->DupAddrDetectTransmits) {
+
+ return EFI_ABORTED;
+ } else {
+
+ OldDadXmits->DupAddrDetectTransmits = *((UINT32 *) Data);
+ return EFI_SUCCESS;
+ }
+}
+
+/**
+ The callback function for Ip6SetAddr. The prototype is defined
+ as IP6_DAD_CALLBACK. It is called after Duplicate Address Detection is performed
+ for the manual address set by Ip6ConfigSetManualAddress.
+
+ @param[in] IsDadPassed If TRUE, Duplicate Address Detection passed.
+ @param[in] TargetAddress The tentative IPv6 address to be checked.
+ @param[in] Context Pointer to the IP6 configuration instance data.
+
+**/
+VOID
+Ip6ManualAddrDadCallback (
+ IN BOOLEAN IsDadPassed,
+ IN EFI_IPv6_ADDRESS *TargetAddress,
+ IN VOID *Context
+ )
+{
+ IP6_CONFIG_INSTANCE *Instance;
+ UINTN Index;
+ IP6_CONFIG_DATA_ITEM *Item;
+ EFI_IP6_CONFIG_MANUAL_ADDRESS *ManualAddr;
+ EFI_IP6_CONFIG_MANUAL_ADDRESS *PassedAddr;
+ UINTN DadPassCount;
+ UINTN DadFailCount;
+ IP6_SERVICE *IpSb;
+
+ Instance = (IP6_CONFIG_INSTANCE *) Context;
+ NET_CHECK_SIGNATURE (Instance, IP6_CONFIG_INSTANCE_SIGNATURE);
+ Item = &Instance->DataItem[Ip6ConfigDataTypeManualAddress];
+ ManualAddr = NULL;
+
+ if (Item->DataSize == 0) {
+ return;
+ }
+
+ for (Index = 0; Index < Item->DataSize / sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS); Index++) {
+ //
+ // Find the original tag used to place into the NET_MAP.
+ //
+ ManualAddr = Item->Data.ManualAddress + Index;
+ if (EFI_IP6_EQUAL (TargetAddress, &ManualAddr->Address)) {
+ break;
+ }
+ }
+
+ ASSERT (Index != Item->DataSize / sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));
+
+ if (IsDadPassed) {
+ NetMapInsertTail (&Instance->DadPassedMap, ManualAddr, NULL);
+ } else {
+ NetMapInsertTail (&Instance->DadFailedMap, ManualAddr, NULL);
+ }
+
+ DadPassCount = NetMapGetCount (&Instance->DadPassedMap);
+ DadFailCount = NetMapGetCount (&Instance->DadFailedMap);
+
+ if ((DadPassCount + DadFailCount) == (Item->DataSize / sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS))) {
+ //
+ // All addresses have finished the configuration process.
+ //
+ if (DadFailCount != 0) {
+ //
+ // There is at least one duplicate address.
+ //
+ FreePool (Item->Data.Ptr);
+
+ Item->DataSize = DadPassCount * sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS);
+ if (Item->DataSize == 0) {
+ //
+ // All failed, bad luck.
+ //
+ Item->Data.Ptr = NULL;
+ Item->Status = EFI_NOT_FOUND;
+ } else {
+ //
+ // Part of addresses are detected to be duplicates, so update the
+ // data with those passed.
+ //
+ PassedAddr = (EFI_IP6_CONFIG_MANUAL_ADDRESS *) AllocatePool (Item->DataSize);
+ ASSERT (PassedAddr != NULL);
+
+ Item->Data.Ptr = PassedAddr;
+ Item->Status = EFI_SUCCESS;
+
+ while (!NetMapIsEmpty (&Instance->DadPassedMap)) {
+ ManualAddr = (EFI_IP6_CONFIG_MANUAL_ADDRESS *) NetMapRemoveHead (&Instance->DadPassedMap, NULL);
+ CopyMem (PassedAddr, ManualAddr, sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));
+
+ PassedAddr++;
+ }
+
+ ASSERT ((UINTN) PassedAddr - (UINTN) Item->Data.Ptr == Item->DataSize);
+ }
+ } else {
+ //
+ // All addresses are valid.
+ //
+ Item->Status = EFI_SUCCESS;
+ }
+
+ //
+ // Remove the tags we put in the NET_MAPs.
+ //
+ while (!NetMapIsEmpty (&Instance->DadFailedMap)) {
+ NetMapRemoveHead (&Instance->DadFailedMap, NULL);
+ }
+
+ while (!NetMapIsEmpty (&Instance->DadPassedMap)) {
+ NetMapRemoveHead (&Instance->DadPassedMap, NULL);
+ }
+
+ //
+ // Signal the waiting events.
+ //
+ NetMapIterate (&Item->EventMap, Ip6ConfigSignalEvent, NULL);
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+ Ip6ConfigWriteConfigData (IpSb->MacString, Instance);
+ }
+}
+
+/**
+ The work function for EfiIp6ConfigSetData() to set the station addresses manually
+ for the EFI IPv6 network stack. It is only configurable when the policy is
+ Ip6ConfigPolicyManual.
+
+ @param[in] Instance Pointer to the IP6 configuration 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
+Ip6ConfigSetManualAddress (
+ IN IP6_CONFIG_INSTANCE *Instance,
+ IN UINTN DataSize,
+ IN VOID *Data
+ )
+{
+ EFI_IP6_CONFIG_MANUAL_ADDRESS *NewAddress;
+ EFI_IP6_CONFIG_MANUAL_ADDRESS *TmpAddress;
+ IP6_CONFIG_DATA_ITEM *DataItem;
+ UINTN NewAddressCount;
+ UINTN Index1;
+ UINTN Index2;
+ IP6_SERVICE *IpSb;
+ IP6_ADDRESS_INFO *CurrentAddrInfo;
+ IP6_ADDRESS_INFO *Copy;
+ LIST_ENTRY CurrentSourceList;
+ UINT32 CurrentSourceCount;
+ LIST_ENTRY *Entry;
+ LIST_ENTRY *Entry2;
+ IP6_INTERFACE *IpIf;
+ IP6_PREFIX_LIST_ENTRY *PrefixEntry;
+ EFI_STATUS Status;
+ BOOLEAN IsUpdated;
+ LIST_ENTRY *Next;
+ IP6_DAD_ENTRY *DadEntry;
+ IP6_DELAY_JOIN_LIST *DelayNode;
+
+ NewAddress = NULL;
+ TmpAddress = NULL;
+ CurrentAddrInfo = NULL;
+ Copy = NULL;
+ Entry = NULL;
+ Entry2 = NULL;
+ IpIf = NULL;
+ PrefixEntry = NULL;
+ Next = NULL;
+ DadEntry = NULL;
+ DelayNode = NULL;
+ Status = EFI_SUCCESS;
+
+ ASSERT (Instance->DataItem[Ip6ConfigDataTypeManualAddress].Status != EFI_NOT_READY);
+
+ if ((DataSize != 0) && ((DataSize % sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS)) != 0)) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ if (Instance->Policy != Ip6ConfigPolicyManual) {
+ return EFI_WRITE_PROTECTED;
+ }
+
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeManualAddress];
+
+ if (Data != NULL && DataSize != 0) {
+ NewAddressCount = DataSize / sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS);
+ NewAddress = (EFI_IP6_CONFIG_MANUAL_ADDRESS *) Data;
+
+ for (Index1 = 0; Index1 < NewAddressCount; Index1++, NewAddress++) {
+
+ if (NetIp6IsLinkLocalAddr (&NewAddress->Address) ||
+ !NetIp6IsValidUnicast (&NewAddress->Address) ||
+ (NewAddress->PrefixLength > 128)
+ ) {
+ //
+ // make sure the IPv6 address is unicast and not link-local address &&
+ // the prefix length is valid.
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+
+ TmpAddress = NewAddress + 1;
+ for (Index2 = Index1 + 1; Index2 < NewAddressCount; Index2++, TmpAddress++) {
+ //
+ // Any two addresses in the array can't be equal.
+ //
+ if (EFI_IP6_EQUAL (&TmpAddress->Address, &NewAddress->Address)) {
+
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+ }
+
+ //
+ // Build the current source address list.
+ //
+ InitializeListHead (&CurrentSourceList);
+ CurrentSourceCount = 0;
+
+ NET_LIST_FOR_EACH (Entry, &IpSb->Interfaces) {
+ IpIf = NET_LIST_USER_STRUCT_S (Entry, IP6_INTERFACE, Link, IP6_INTERFACE_SIGNATURE);
+
+ NET_LIST_FOR_EACH (Entry2, &IpIf->AddressList) {
+ CurrentAddrInfo = NET_LIST_USER_STRUCT_S (Entry2, IP6_ADDRESS_INFO, Link, IP6_ADDR_INFO_SIGNATURE);
+
+ Copy = AllocateCopyPool (sizeof (IP6_ADDRESS_INFO), CurrentAddrInfo);
+ if (Copy == NULL) {
+ break;
+ }
+
+ InsertTailList (&CurrentSourceList, &Copy->Link);
+ CurrentSourceCount++;
+ }
+ }
+
+ //
+ // Update the value... a long journey starts
+ //
+ NewAddress = AllocateCopyPool (DataSize, Data);
+ if (NewAddress == NULL) {
+ Ip6RemoveAddr (NULL, &CurrentSourceList, &CurrentSourceCount, NULL, 0);
+
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ //
+ // Store the new data, and init the DataItem status to EFI_NOT_READY because
+ // we may have an asynchronous configuration process.
+ //
+ if (DataItem->Data.Ptr != NULL) {
+ FreePool (DataItem->Data.Ptr);
+ }
+ DataItem->Data.Ptr = NewAddress;
+ DataItem->DataSize = DataSize;
+ DataItem->Status = EFI_NOT_READY;
+
+ //
+ // Trigger DAD, it's an asynchronous process.
+ //
+ IsUpdated = FALSE;
+
+ for (Index1 = 0; Index1 < NewAddressCount; Index1++, NewAddress++) {
+ if (Ip6IsOneOfSetAddress (IpSb, &NewAddress->Address, NULL, &CurrentAddrInfo)) {
+ ASSERT (CurrentAddrInfo != NULL);
+ //
+ // Remove this already existing source address from the CurrentSourceList
+ // built before.
+ //
+ Ip6RemoveAddr (
+ NULL,
+ &CurrentSourceList,
+ &CurrentSourceCount,
+ &CurrentAddrInfo->Address,
+ 128
+ );
+
+ //
+ // If the new address's prefix length is not specified, just use the previous configured
+ // prefix length for this address.
+ //
+ if (NewAddress->PrefixLength == 0) {
+ NewAddress->PrefixLength = CurrentAddrInfo->PrefixLength;
+ }
+
+ //
+ // This manual address is already in use, see whether prefix length is changed.
+ //
+ if (NewAddress->PrefixLength != CurrentAddrInfo->PrefixLength) {
+ //
+ // Remove the on-link prefix table, the route entry will be removed
+ // implicitly.
+ //
+ PrefixEntry = Ip6FindPrefixListEntry (
+ IpSb,
+ TRUE,
+ CurrentAddrInfo->PrefixLength,
+ &CurrentAddrInfo->Address
+ );
+ if (PrefixEntry != NULL) {
+ Ip6DestroyPrefixListEntry (IpSb, PrefixEntry, TRUE, FALSE);
+ }
+
+ //
+ // Save the prefix length.
+ //
+ CurrentAddrInfo->PrefixLength = NewAddress->PrefixLength;
+ IsUpdated = TRUE;
+ }
+
+ //
+ // create a new on-link prefix entry.
+ //
+ PrefixEntry = Ip6FindPrefixListEntry (
+ IpSb,
+ TRUE,
+ NewAddress->PrefixLength,
+ &NewAddress->Address
+ );
+ if (PrefixEntry == NULL) {
+ Ip6CreatePrefixListEntry (
+ IpSb,
+ TRUE,
+ (UINT32) IP6_INFINIT_LIFETIME,
+ (UINT32) IP6_INFINIT_LIFETIME,
+ NewAddress->PrefixLength,
+ &NewAddress->Address
+ );
+ }
+
+ CurrentAddrInfo->IsAnycast = NewAddress->IsAnycast;
+ //
+ // Artificially mark this address passed DAD be'coz it is already in use.
+ //
+ Ip6ManualAddrDadCallback (TRUE, &NewAddress->Address, Instance);
+ } else {
+ //
+ // A new address.
+ //
+ IsUpdated = TRUE;
+
+ //
+ // Set the new address, this will trigger DAD and activate the address if
+ // DAD succeeds.
+ //
+ Ip6SetAddress (
+ IpSb->DefaultInterface,
+ &NewAddress->Address,
+ NewAddress->IsAnycast,
+ NewAddress->PrefixLength,
+ (UINT32) IP6_INFINIT_LIFETIME,
+ (UINT32) IP6_INFINIT_LIFETIME,
+ Ip6ManualAddrDadCallback,
+ Instance
+ );
+ }
+ }
+
+ //
+ // Check the CurrentSourceList, it now contains those addresses currently in
+ // use and will be removed.
+ //
+ IpIf = IpSb->DefaultInterface;
+
+ while (!IsListEmpty (&CurrentSourceList)) {
+ IsUpdated = TRUE;
+
+ CurrentAddrInfo = NET_LIST_HEAD (&CurrentSourceList, IP6_ADDRESS_INFO, Link);
+
+ //
+ // This local address is going to be removed, the IP instances that are
+ // currently using it will be destroyed.
+ //
+ Ip6RemoveAddr (
+ IpSb,
+ &IpIf->AddressList,
+ &IpIf->AddressCount,
+ &CurrentAddrInfo->Address,
+ 128
+ );
+
+ //
+ // Remove the on-link prefix table, the route entry will be removed
+ // implicitly.
+ //
+ PrefixEntry = Ip6FindPrefixListEntry (
+ IpSb,
+ TRUE,
+ CurrentAddrInfo->PrefixLength,
+ &CurrentAddrInfo->Address
+ );
+ if (PrefixEntry != NULL) {
+ Ip6DestroyPrefixListEntry (IpSb, PrefixEntry, TRUE, FALSE);
+ }
+
+ RemoveEntryList (&CurrentAddrInfo->Link);
+ FreePool (CurrentAddrInfo);
+ }
+
+ if (IsUpdated) {
+ if (DataItem->Status == EFI_NOT_READY) {
+ //
+ // If DAD is disabled on this interface, the configuration process is
+ // actually synchronous, and the data item's status will be changed to
+ // the final status before we reach here, just check it.
+ //
+ Status = EFI_NOT_READY;
+ } else {
+ Status = EFI_SUCCESS;
+ }
+ } else {
+ //
+ // No update is taken, reset the status to success and return EFI_ABORTED.
+ //
+ DataItem->Status = EFI_SUCCESS;
+ Status = EFI_ABORTED;
+ }
+ } 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;
+
+ Ip6CleanDefaultRouterList (IpSb);
+ Ip6CleanPrefixListTable (IpSb, &IpSb->OnlinkPrefix);
+ Ip6CleanPrefixListTable (IpSb, &IpSb->AutonomousPrefix);
+ Ip6CleanAssembleTable (&IpSb->Assemble);
+
+ if (IpSb->LinkLocalOk) {
+ Ip6CreatePrefixListEntry (
+ IpSb,
+ TRUE,
+ (UINT32) IP6_INFINIT_LIFETIME,
+ (UINT32) IP6_INFINIT_LIFETIME,
+ IP6_LINK_LOCAL_PREFIX_LENGTH,
+ &IpSb->LinkLocalAddr
+ );
+ }
+
+ Ip6RemoveAddr (
+ IpSb,
+ &IpSb->DefaultInterface->AddressList,
+ &IpSb->DefaultInterface->AddressCount,
+ NULL,
+ 0
+ );
+
+ NET_LIST_FOR_EACH (Entry, &IpSb->Interfaces) {
+ //
+ // Remove all pending delay node and DAD entries for the global addresses.
+ //
+ IpIf = NET_LIST_USER_STRUCT_S (Entry, IP6_INTERFACE, Link, IP6_INTERFACE_SIGNATURE);
+
+ NET_LIST_FOR_EACH_SAFE (Entry2, Next, &IpIf->DelayJoinList) {
+ DelayNode = NET_LIST_USER_STRUCT (Entry2, IP6_DELAY_JOIN_LIST, Link);
+ if (!NetIp6IsLinkLocalAddr (&DelayNode->AddressInfo->Address)) {
+ RemoveEntryList (&DelayNode->Link);
+ FreePool (DelayNode);
+ }
+ }
+
+ NET_LIST_FOR_EACH_SAFE (Entry2, Next, &IpIf->DupAddrDetectList) {
+ DadEntry = NET_LIST_USER_STRUCT_S (Entry2, IP6_DAD_ENTRY, Link, IP6_DAD_ENTRY_SIGNATURE);
+
+ if (!NetIp6IsLinkLocalAddr (&DadEntry->AddressInfo->Address)) {
+ //
+ // Fail this DAD entry if the address is not link-local.
+ //
+ Ip6OnDADFinished (FALSE, IpIf, DadEntry);
+ }
+ }
+ }
+ }
+
+ return Status;
+}
+
+/**
+ The work function for EfiIp6ConfigSetData() to set the gateway addresses manually
+ for the EFI IPv6 network stack that is running on the communication device that
+ this EFI IPv6 Configuration Protocol manages. It is not configurable when the policy is
+ Ip6ConfigPolicyAutomatic. The gateway addresses must be unicast IPv6 addresses.
+
+ @param[in] Instance The pointer to the IP6 config 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
+Ip6ConfigSetGateway (
+ IN IP6_CONFIG_INSTANCE *Instance,
+ IN UINTN DataSize,
+ IN VOID *Data
+ )
+{
+ UINTN Index1;
+ UINTN Index2;
+ EFI_IPv6_ADDRESS *OldGateway;
+ EFI_IPv6_ADDRESS *NewGateway;
+ UINTN OldGatewayCount;
+ UINTN NewGatewayCount;
+ IP6_CONFIG_DATA_ITEM *Item;
+ BOOLEAN OneRemoved;
+ BOOLEAN OneAdded;
+ IP6_SERVICE *IpSb;
+ IP6_DEFAULT_ROUTER *DefaultRouter;
+ VOID *Tmp;
+
+ OldGateway = NULL;
+ NewGateway = NULL;
+ Item = NULL;
+ DefaultRouter = NULL;
+ Tmp = NULL;
+ OneRemoved = FALSE;
+ OneAdded = FALSE;
+
+ if ((DataSize != 0) && (DataSize % sizeof (EFI_IPv6_ADDRESS) != 0)) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ if (Instance->Policy != Ip6ConfigPolicyManual) {
+ return EFI_WRITE_PROTECTED;
+ }
+
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+ Item = &Instance->DataItem[Ip6ConfigDataTypeGateway];
+ OldGateway = Item->Data.Gateway;
+ OldGatewayCount = Item->DataSize / sizeof (EFI_IPv6_ADDRESS);
+
+ for (Index1 = 0; Index1 < OldGatewayCount; Index1++) {
+ //
+ // Remove this default router.
+ //
+ DefaultRouter = Ip6FindDefaultRouter (IpSb, OldGateway + Index1);
+ if (DefaultRouter != NULL) {
+ Ip6DestroyDefaultRouter (IpSb, DefaultRouter);
+ OneRemoved = TRUE;
+ }
+ }
+
+ if (Data != NULL && DataSize != 0) {
+ NewGateway = (EFI_IPv6_ADDRESS *) Data;
+ NewGatewayCount = DataSize / sizeof (EFI_IPv6_ADDRESS);
+ for (Index1 = 0; Index1 < NewGatewayCount; Index1++) {
+
+ if (!NetIp6IsValidUnicast (NewGateway + Index1)) {
+
+ return EFI_INVALID_PARAMETER;
+ }
+
+ for (Index2 = Index1 + 1; Index2 < NewGatewayCount; Index2++) {
+ if (EFI_IP6_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++) {
+
+ DefaultRouter = Ip6FindDefaultRouter (IpSb, NewGateway + Index1);
+ if (DefaultRouter == NULL) {
+ Ip6CreateDefaultRouter (IpSb, NewGateway + Index1, IP6_INF_ROUTER_LIFETIME);
+ OneAdded = TRUE;
+ }
+ }
+
+ if (!OneRemoved && !OneAdded) {
+ 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;
+ }
+ } else {
+ //
+ // DataSize is 0 and Data is NULL, clean up the Gateway address.
+ //
+ if (Item->Data.Ptr != NULL) {
+ FreePool (Item->Data.Ptr);
+ }
+ Item->Data.Ptr = NULL;
+ Item->DataSize = 0;
+ Item->Status = EFI_NOT_FOUND;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The work function for EfiIp6ConfigSetData() to set the DNS server list for the
+ EFI IPv6 network stack running on the communication device that this EFI IPv6
+ Configuration Protocol manages. It is not configurable when the policy is
+ Ip6ConfigPolicyAutomatic. The DNS server addresses must be unicast IPv6 addresses.
+
+ @param[in] Instance The pointer to the IP6 config 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_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 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 IPv6
+ network stack was set.
+
+**/
+EFI_STATUS
+Ip6ConfigSetDnsServer (
+ IN IP6_CONFIG_INSTANCE *Instance,
+ IN UINTN DataSize,
+ IN VOID *Data
+ )
+{
+ UINTN OldIndex;
+ UINTN NewIndex;
+ EFI_IPv6_ADDRESS *OldDns;
+ EFI_IPv6_ADDRESS *NewDns;
+ UINTN OldDnsCount;
+ UINTN NewDnsCount;
+ IP6_CONFIG_DATA_ITEM *Item;
+ BOOLEAN OneAdded;
+ VOID *Tmp;
+
+ OldDns = NULL;
+ NewDns = NULL;
+ Item = NULL;
+ Tmp = NULL;
+
+ if ((DataSize != 0) && (DataSize % sizeof (EFI_IPv6_ADDRESS) != 0)) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ if (Instance->Policy != Ip6ConfigPolicyManual) {
+ return EFI_WRITE_PROTECTED;
+ }
+
+ Item = &Instance->DataItem[Ip6ConfigDataTypeDnsServer];
+
+ if (Data != NULL && DataSize != 0) {
+ NewDns = (EFI_IPv6_ADDRESS *) Data;
+ OldDns = Item->Data.DnsServers;
+ NewDnsCount = DataSize / sizeof (EFI_IPv6_ADDRESS);
+ OldDnsCount = Item->DataSize / sizeof (EFI_IPv6_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++) {
+
+ if (!NetIp6IsValidUnicast (NewDns + NewIndex)) {
+ //
+ // 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_IP6_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;
+ }
+ } 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 EFI_SUCCESS;
+}
+
+/**
+ Generate the operational state of the interface this IP6 config instance manages
+ and output in EFI_IP6_CONFIG_INTERFACE_INFO.
+
+ @param[in] IpSb The pointer to the IP6 service binding instance.
+ @param[out] IfInfo The pointer to the IP6 configuration interface information structure.
+
+**/
+VOID
+Ip6ConfigInitIfInfo (
+ IN IP6_SERVICE *IpSb,
+ OUT EFI_IP6_CONFIG_INTERFACE_INFO *IfInfo
+ )
+{
+ UnicodeSPrint (
+ IfInfo->Name,
+ sizeof (IfInfo->Name),
+ L"eth%d",
+ IpSb->Ip6ConfigInstance.IfIndex
+ );
+
+ IfInfo->IfType = IpSb->SnpMode.IfType;
+ IfInfo->HwAddressSize = IpSb->SnpMode.HwAddressSize;
+ CopyMem (&IfInfo->HwAddress, &IpSb->SnpMode.CurrentAddress, IfInfo->HwAddressSize);
+}
+
+/**
+ Parse DHCPv6 reply packet to get the DNS server list.
+ It is the work function for Ip6ConfigOnDhcp6Reply and Ip6ConfigOnDhcp6Event.
+
+ @param[in] Dhcp6 The pointer to the EFI_DHCP6_PROTOCOL instance.
+ @param[in, out] Instance The pointer to the IP6 configuration instance data.
+ @param[in] Reply The pointer to the DHCPv6 reply packet.
+
+ @retval EFI_SUCCESS The DNS server address was retrieved from the reply packet.
+ @retval EFI_NOT_READY The reply packet does not contain the DNS server option, or
+ the DNS server address is not valid.
+
+**/
+EFI_STATUS
+Ip6ConfigParseDhcpReply (
+ IN EFI_DHCP6_PROTOCOL *Dhcp6,
+ IN OUT IP6_CONFIG_INSTANCE *Instance,
+ IN EFI_DHCP6_PACKET *Reply
+ )
+{
+ EFI_STATUS Status;
+ UINT32 OptCount;
+ EFI_DHCP6_PACKET_OPTION **OptList;
+ UINT16 OpCode;
+ UINT16 Length;
+ UINTN Index;
+ UINTN Index2;
+ EFI_IPv6_ADDRESS *DnsServer;
+ IP6_CONFIG_DATA_ITEM *Item;
+
+ //
+ // A DHCPv6 reply packet is received as the response to our InfoRequest
+ // packet.
+ //
+ OptCount = 0;
+ Status = Dhcp6->Parse (Dhcp6, Reply, &OptCount, NULL);
+ if (Status != EFI_BUFFER_TOO_SMALL) {
+ return EFI_NOT_READY;
+ }
+
+ OptList = AllocatePool (OptCount * sizeof (EFI_DHCP6_PACKET_OPTION *));
+ if (OptList == NULL) {
+ return EFI_NOT_READY;
+ }
+
+ Status = Dhcp6->Parse (Dhcp6, Reply, &OptCount, OptList);
+ if (EFI_ERROR (Status)) {
+ Status = EFI_NOT_READY;
+ goto ON_EXIT;
+ }
+
+ Status = EFI_SUCCESS;
+
+ for (Index = 0; Index < OptCount; Index++) {
+ //
+ // Go through all the options to check the ones we are interested in.
+ // The OpCode and Length are in network byte-order and may not be naturally
+ // aligned.
+ //
+ CopyMem (&OpCode, &OptList[Index]->OpCode, sizeof (OpCode));
+ OpCode = NTOHS (OpCode);
+
+ if (OpCode == DHCP6_OPT_DNS_SERVERS) {
+ CopyMem (&Length, &OptList[Index]->OpLen, sizeof (Length));
+ Length = NTOHS (Length);
+
+ if ((Length == 0) || ((Length % sizeof (EFI_IPv6_ADDRESS)) != 0)) {
+ //
+ // The length should be a multiple of 16 bytes.
+ //
+ Status = EFI_NOT_READY;
+ break;
+ }
+
+ //
+ // Validate the DnsServers: whether they are unicast addresses.
+ //
+ DnsServer = (EFI_IPv6_ADDRESS *) OptList[Index]->Data;
+ for (Index2 = 0; Index2 < Length / sizeof (EFI_IPv6_ADDRESS); Index2++) {
+ if (!NetIp6IsValidUnicast (DnsServer)) {
+ Status = EFI_NOT_READY;
+ goto ON_EXIT;
+ }
+
+ DnsServer++;
+ }
+
+ Item = &Instance->DataItem[Ip6ConfigDataTypeDnsServer];
+
+ if (Item->DataSize != Length) {
+ if (Item->Data.Ptr != NULL) {
+ FreePool (Item->Data.Ptr);
+ }
+
+ Item->Data.Ptr = AllocatePool (Length);
+ ASSERT (Item->Data.Ptr != NULL);
+ }
+
+ CopyMem (Item->Data.Ptr, OptList[Index]->Data, Length);
+ Item->DataSize = Length;
+ Item->Status = EFI_SUCCESS;
+
+ //
+ // Signal the waiting events.
+ //
+ NetMapIterate (&Item->EventMap, Ip6ConfigSignalEvent, NULL);
+
+ break;
+ }
+ }
+
+ON_EXIT:
+
+ FreePool (OptList);
+ return Status;
+}
+
+/**
+ The callback function for Ip6SetAddr. The prototype is defined
+ as IP6_DAD_CALLBACK. It is called after Duplicate Address Detection is performed
+ on the tentative address by DHCPv6 in Ip6ConfigOnDhcp6Event().
+
+ @param[in] IsDadPassed If TRUE, Duplicate Address Detection passes.
+ @param[in] TargetAddress The tentative IPv6 address to be checked.
+ @param[in] Context Pointer to the IP6 configuration instance data.
+
+**/
+VOID
+Ip6ConfigSetStatefulAddrCallback (
+ IN BOOLEAN IsDadPassed,
+ IN EFI_IPv6_ADDRESS *TargetAddress,
+ IN VOID *Context
+ )
+{
+ IP6_CONFIG_INSTANCE *Instance;
+
+ Instance = (IP6_CONFIG_INSTANCE *) Context;
+ NET_CHECK_SIGNATURE (Instance, IP6_CONFIG_INSTANCE_SIGNATURE);
+
+ //
+ // We should record the addresses that fail the DAD, and DECLINE them.
+ //
+ if (IsDadPassed) {
+ //
+ // Decrease the count, no interests in those passed DAD.
+ //
+ if (Instance->FailedIaAddressCount > 0 ) {
+ Instance->FailedIaAddressCount--;
+ }
+ } else {
+ //
+ // Record it.
+ //
+ IP6_COPY_ADDRESS (Instance->DeclineAddress + Instance->DeclineAddressCount, TargetAddress);
+ Instance->DeclineAddressCount++;
+ }
+
+ if (Instance->FailedIaAddressCount == Instance->DeclineAddressCount) {
+ //
+ // The checking on all addresses are finished.
+ //
+ if (Instance->DeclineAddressCount != 0) {
+ //
+ // Decline those duplicates.
+ //
+ if (Instance->Dhcp6 != NULL) {
+ Instance->Dhcp6->Decline (
+ Instance->Dhcp6,
+ Instance->DeclineAddressCount,
+ Instance->DeclineAddress
+ );
+ }
+ }
+
+ if (Instance->DeclineAddress != NULL) {
+ FreePool (Instance->DeclineAddress);
+ }
+ Instance->DeclineAddress = NULL;
+ Instance->DeclineAddressCount = 0;
+ }
+}
+
+/**
+ The event handle routine when DHCPv6 process is finished or is updated.
+
+ @param[in] Event Not used.
+ @param[in] Context The pointer to the IP6 configuration instance data.
+
+**/
+VOID
+EFIAPI
+Ip6ConfigOnDhcp6Event (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ IP6_CONFIG_INSTANCE *Instance;
+ EFI_DHCP6_PROTOCOL *Dhcp6;
+ EFI_STATUS Status;
+ EFI_DHCP6_MODE_DATA Dhcp6ModeData;
+ EFI_DHCP6_IA *Ia;
+ EFI_DHCP6_IA_ADDRESS *IaAddr;
+ UINT32 Index;
+ IP6_SERVICE *IpSb;
+ IP6_ADDRESS_INFO *AddrInfo;
+ IP6_INTERFACE *IpIf;
+
+ Instance = (IP6_CONFIG_INSTANCE *) Context;
+
+ if ((Instance->Policy != Ip6ConfigPolicyAutomatic) || Instance->OtherInfoOnly) {
+ //
+ // IPv6 is not operating in the automatic policy now or
+ // the DHCPv6 information request message exchange is aborted.
+ //
+ return ;
+ }
+
+ //
+ // The stateful address autoconfiguration is done or updated.
+ //
+ Dhcp6 = Instance->Dhcp6;
+
+ Status = Dhcp6->GetModeData (Dhcp6, &Dhcp6ModeData, NULL);
+ if (EFI_ERROR (Status)) {
+ return ;
+ }
+
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+ IpIf = IpSb->DefaultInterface;
+ Ia = Dhcp6ModeData.Ia;
+ IaAddr = Ia->IaAddress;
+
+ if (Instance->DeclineAddress != NULL) {
+ FreePool (Instance->DeclineAddress);
+ }
+
+ Instance->DeclineAddress = (EFI_IPv6_ADDRESS *) AllocatePool (Ia->IaAddressCount * sizeof (EFI_IPv6_ADDRESS));
+ if (Instance->DeclineAddress == NULL) {
+ goto ON_EXIT;
+ }
+
+ Instance->FailedIaAddressCount = Ia->IaAddressCount;
+ Instance->DeclineAddressCount = 0;
+
+ for (Index = 0; Index < Ia->IaAddressCount; Index++, IaAddr++) {
+ if (Ia->IaAddress[Index].ValidLifetime != 0 && Ia->State == Dhcp6Bound) {
+ //
+ // Set this address, either it's a new address or with updated lifetimes.
+ // An appropriate prefix length will be set.
+ //
+ Ip6SetAddress (
+ IpIf,
+ &IaAddr->IpAddress,
+ FALSE,
+ 0,
+ IaAddr->ValidLifetime,
+ IaAddr->PreferredLifetime,
+ Ip6ConfigSetStatefulAddrCallback,
+ Instance
+ );
+ } else {
+ //
+ // discard this address, artificially decrease the count as if this address
+ // passed DAD.
+ //
+ if (Ip6IsOneOfSetAddress (IpSb, &IaAddr->IpAddress, NULL, &AddrInfo)) {
+ ASSERT (AddrInfo != NULL);
+ Ip6RemoveAddr (
+ IpSb,
+ &IpIf->AddressList,
+ &IpIf->AddressCount,
+ &AddrInfo->Address,
+ AddrInfo->PrefixLength
+ );
+ }
+
+ if (Instance->FailedIaAddressCount > 0) {
+ Instance->FailedIaAddressCount--;
+ }
+ }
+ }
+
+ //
+ // Parse the Reply packet to get the options we need.
+ //
+ if (Dhcp6ModeData.Ia->ReplyPacket != NULL) {
+ Ip6ConfigParseDhcpReply (Dhcp6, Instance, Dhcp6ModeData.Ia->ReplyPacket);
+ }
+
+ON_EXIT:
+
+ FreePool (Dhcp6ModeData.ClientId);
+ FreePool (Dhcp6ModeData.Ia);
+}
+
+/**
+ The event process routine when the DHCPv6 server is answered with a reply packet
+ for an information request.
+
+ @param[in] This Points to the EFI_DHCP6_PROTOCOL.
+ @param[in] Context The pointer to the IP6 configuration instance data.
+ @param[in] Packet The DHCPv6 reply packet.
+
+ @retval EFI_SUCCESS The DNS server address was retrieved from the reply packet.
+ @retval EFI_NOT_READY The reply packet does not contain the DNS server option, or
+ the DNS server address is not valid.
+
+**/
+EFI_STATUS
+EFIAPI
+Ip6ConfigOnDhcp6Reply (
+ IN EFI_DHCP6_PROTOCOL *This,
+ IN VOID *Context,
+ IN EFI_DHCP6_PACKET *Packet
+ )
+{
+ return Ip6ConfigParseDhcpReply (This, (IP6_CONFIG_INSTANCE *) Context, Packet);
+}
+
+/**
+ The event process routine when the DHCPv6 service binding protocol is installed
+ in the system.
+
+ @param[in] Event Not used.
+ @param[in] Context The pointer to the IP6 config instance data.
+
+**/
+VOID
+EFIAPI
+Ip6ConfigOnDhcp6SbInstalled (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ IP6_CONFIG_INSTANCE *Instance;
+
+ Instance = (IP6_CONFIG_INSTANCE *) Context;
+
+ if ((Instance->Dhcp6Handle != NULL) || (Instance->Policy != Ip6ConfigPolicyAutomatic)) {
+ //
+ // The DHCP6 child is already created or the policy is no longer AUTOMATIC.
+ //
+ return ;
+ }
+
+ Ip6ConfigStartStatefulAutoConfig (Instance, Instance->OtherInfoOnly);
+}
+
+/**
+ Set the configuration for the EFI IPv6 network stack running on the communication
+ device this EFI IPv6 Configuration Protocol instance manages.
+
+ This function is used to set the configuration data of type DataType for the EFI
+ IPv6 network stack that is running on the communication device that this EFI IPv6
+ 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 IPv6 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_IP6_CONFIG_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 DataSizedo 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
+EfiIp6ConfigSetData (
+ IN EFI_IP6_CONFIG_PROTOCOL *This,
+ IN EFI_IP6_CONFIG_DATA_TYPE DataType,
+ IN UINTN DataSize,
+ IN VOID *Data
+ )
+{
+ EFI_TPL OldTpl;
+ EFI_STATUS Status;
+ IP6_CONFIG_INSTANCE *Instance;
+ IP6_SERVICE *IpSb;
+
+ if ((This == NULL) || (Data == NULL && DataSize != 0) || (Data != NULL && DataSize == 0)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (DataType >= Ip6ConfigDataTypeMaximum) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Instance = IP6_CONFIG_INSTANCE_FROM_PROTOCOL (This);
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+ NET_CHECK_SIGNATURE (IpSb, IP6_SERVICE_SIGNATURE);
+
+ if (IpSb->LinkLocalDadFail) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ 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, Ip6ConfigSignalEvent, NULL);
+ Ip6ConfigWriteConfigData (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, Ip6ConfigSignalEvent, 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 IPv6 network stack running on the communication
+ device that this EFI IPv6 Configuration Protocol instance manages.
+
+ This function returns the configuration data of type DataType for the EFI IPv6 network
+ stack running on the communication device that this EFI IPv6 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_IP6_CONFIG_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
+EfiIp6ConfigGetData (
+ IN EFI_IP6_CONFIG_PROTOCOL *This,
+ IN EFI_IP6_CONFIG_DATA_TYPE DataType,
+ IN OUT UINTN *DataSize,
+ IN VOID *Data OPTIONAL
+ )
+{
+ EFI_TPL OldTpl;
+ EFI_STATUS Status;
+ IP6_CONFIG_INSTANCE *Instance;
+ IP6_CONFIG_DATA_ITEM *DataItem;
+
+ if ((This == NULL) || (DataSize == NULL) || ((*DataSize != 0) && (Data == NULL))) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (DataType >= Ip6ConfigDataTypeMaximum) {
+ return EFI_NOT_FOUND;
+ }
+
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+ Instance = IP6_CONFIG_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_IP6_CONFIG_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
+EfiIp6ConfigRegisterDataNotify (
+ IN EFI_IP6_CONFIG_PROTOCOL *This,
+ IN EFI_IP6_CONFIG_DATA_TYPE DataType,
+ IN EFI_EVENT Event
+ )
+{
+ EFI_TPL OldTpl;
+ EFI_STATUS Status;
+ IP6_CONFIG_INSTANCE *Instance;
+ NET_MAP *EventMap;
+ NET_MAP_ITEM *Item;
+
+ if ((This == NULL) || (Event == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (DataType >= Ip6ConfigDataTypeMaximum) {
+ return EFI_UNSUPPORTED;
+ }
+
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+ Instance = IP6_CONFIG_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_IP6_CONFIG_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
+EfiIp6ConfigUnregisterDataNotify (
+ IN EFI_IP6_CONFIG_PROTOCOL *This,
+ IN EFI_IP6_CONFIG_DATA_TYPE DataType,
+ IN EFI_EVENT Event
+ )
+{
+ EFI_TPL OldTpl;
+ EFI_STATUS Status;
+ IP6_CONFIG_INSTANCE *Instance;
+ NET_MAP_ITEM *Item;
+
+ if ((This == NULL) || (Event == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (DataType >= Ip6ConfigDataTypeMaximum) {
+ return EFI_NOT_FOUND;
+ }
+
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
+
+ Instance = IP6_CONFIG_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 IP6_CONFIG_INSTANCE.
+
+ @param[out] Instance The buffer of IP6_CONFIG_INSTANCE to be initialized.
+
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate resources to complete the operation.
+ @retval EFI_SUCCESS The IP6_CONFIG_INSTANCE initialized successfully.
+
+**/
+EFI_STATUS
+Ip6ConfigInitInstance (
+ OUT IP6_CONFIG_INSTANCE *Instance
+ )
+{
+ IP6_SERVICE *IpSb;
+ IP6_CONFIG_INSTANCE *TmpInstance;
+ LIST_ENTRY *Entry;
+ EFI_STATUS Status;
+ UINTN Index;
+ UINT16 IfIndex;
+ IP6_CONFIG_DATA_ITEM *DataItem;
+
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+
+ Instance->Signature = IP6_CONFIG_INSTANCE_SIGNATURE;
+
+ //
+ // Determine the index of this interface.
+ //
+ IfIndex = 0;
+ NET_LIST_FOR_EACH (Entry, &mIp6ConfigInstanceList) {
+ TmpInstance = NET_LIST_USER_STRUCT_S (Entry, IP6_CONFIG_INSTANCE, Link, IP6_CONFIG_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 < Ip6ConfigDataTypeMaximum; Index++) {
+ //
+ // Initialize the event map for each data item.
+ //
+ NetMapInit (&Instance->DataItem[Index].EventMap);
+ }
+
+ //
+ // Initialize the NET_MAPs used for DAD on manually configured source addresses.
+ //
+ NetMapInit (&Instance->DadFailedMap);
+ NetMapInit (&Instance->DadPassedMap);
+
+ //
+ // 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[Ip6ConfigDataTypeInterfaceInfo];
+ DataItem->GetData = Ip6ConfigGetIfInfo;
+ DataItem->Data.Ptr = &Instance->InterfaceInfo;
+ DataItem->DataSize = sizeof (Instance->InterfaceInfo);
+ SET_DATA_ATTRIB (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED | DATA_ATTRIB_VOLATILE);
+ Ip6ConfigInitIfInfo (IpSb, &Instance->InterfaceInfo);
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeAltInterfaceId];
+ DataItem->SetData = Ip6ConfigSetAltIfId;
+ DataItem->Data.Ptr = &Instance->AltIfId;
+ DataItem->DataSize = sizeof (Instance->AltIfId);
+ DataItem->Status = EFI_NOT_FOUND;
+ SET_DATA_ATTRIB (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED);
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypePolicy];
+ DataItem->SetData = Ip6ConfigSetPolicy;
+ DataItem->Data.Ptr = &Instance->Policy;
+ DataItem->DataSize = sizeof (Instance->Policy);
+ Instance->Policy = Ip6ConfigPolicyManual;
+ SET_DATA_ATTRIB (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED);
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeDupAddrDetectTransmits];
+ DataItem->SetData = Ip6ConfigSetDadXmits;
+ DataItem->Data.Ptr = &Instance->DadXmits;
+ DataItem->DataSize = sizeof (Instance->DadXmits);
+ Instance->DadXmits.DupAddrDetectTransmits = IP6_CONFIG_DEFAULT_DAD_XMITS;
+ SET_DATA_ATTRIB (DataItem->Attribute, DATA_ATTRIB_SIZE_FIXED);
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeManualAddress];
+ DataItem->SetData = Ip6ConfigSetManualAddress;
+ DataItem->Status = EFI_NOT_FOUND;
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeGateway];
+ DataItem->SetData = Ip6ConfigSetGateway;
+ DataItem->Status = EFI_NOT_FOUND;
+
+ DataItem = &Instance->DataItem[Ip6ConfigDataTypeDnsServer];
+ DataItem->SetData = Ip6ConfigSetDnsServer;
+ DataItem->Status = EFI_NOT_FOUND;
+
+ //
+ // Create the event used for DHCP.
+ //
+ Status = gBS->CreateEvent (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ Ip6ConfigOnDhcp6Event,
+ Instance,
+ &Instance->Dhcp6Event
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Instance->Configured = TRUE;
+
+ //
+ // Try to read the config data from NV variable.
+ //
+ Status = Ip6ConfigReadConfigData (IpSb->MacString, Instance);
+ if (Status == EFI_NOT_FOUND) {
+ //
+ // The NV variable is not set, so generate a random IAID, and write down the
+ // fresh new configuration as the NV variable now.
+ //
+ Instance->IaId = NET_RANDOM (NetRandomInitSeed ());
+
+ for (Index = 0; Index < IpSb->SnpMode.HwAddressSize; Index++) {
+ Instance->IaId |= (IpSb->SnpMode.CurrentAddress.Addr[Index] << ((Index << 3) & 31));
+ }
+
+ Ip6ConfigWriteConfigData (IpSb->MacString, Instance);
+ } else if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Instance->Ip6Config.SetData = EfiIp6ConfigSetData;
+ Instance->Ip6Config.GetData = EfiIp6ConfigGetData;
+ Instance->Ip6Config.RegisterDataNotify = EfiIp6ConfigRegisterDataNotify;
+ Instance->Ip6Config.UnregisterDataNotify = EfiIp6ConfigUnregisterDataNotify;
+
+
+ //
+ // Publish the IP6 configuration form
+ //
+ return Ip6ConfigFormInit (Instance);
+}
+
+/**
+ Release an IP6_CONFIG_INSTANCE.
+
+ @param[in, out] Instance The buffer of IP6_CONFIG_INSTANCE to be freed.
+
+**/
+VOID
+Ip6ConfigCleanInstance (
+ IN OUT IP6_CONFIG_INSTANCE *Instance
+ )
+{
+ UINTN Index;
+ IP6_CONFIG_DATA_ITEM *DataItem;
+
+ if (Instance->DeclineAddress != NULL) {
+ FreePool (Instance->DeclineAddress);
+ }
+
+ if (!Instance->Configured) {
+ return ;
+ }
+
+ if (Instance->Dhcp6Handle != NULL) {
+
+ Ip6ConfigDestroyDhcp6 (Instance);
+ }
+
+ //
+ // Close the event.
+ //
+ if (Instance->Dhcp6Event != NULL) {
+ gBS->CloseEvent (Instance->Dhcp6Event);
+ }
+
+ NetMapClean (&Instance->DadPassedMap);
+ NetMapClean (&Instance->DadFailedMap);
+
+ for (Index = 0; Index < Ip6ConfigDataTypeMaximum; 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);
+ }
+
+ Ip6ConfigFormUnload (Instance);
+
+ RemoveEntryList (&Instance->Link);
+}
+
+/**
+ Destroy the Dhcp6 child in IP6_CONFIG_INSTANCE and release the resources.
+
+ @param[in, out] Instance The buffer of IP6_CONFIG_INSTANCE to be freed.
+
+ @retval EFI_SUCCESS The child was successfully destroyed.
+ @retval Others Failed to destroy the child.
+
+**/
+EFI_STATUS
+Ip6ConfigDestroyDhcp6 (
+ IN OUT IP6_CONFIG_INSTANCE *Instance
+ )
+{
+ IP6_SERVICE *IpSb;
+ EFI_STATUS Status;
+ EFI_DHCP6_PROTOCOL *Dhcp6;
+
+ Dhcp6 = Instance->Dhcp6;
+ ASSERT (Dhcp6 != NULL);
+
+ Dhcp6->Stop (Dhcp6);
+ Dhcp6->Configure (Dhcp6, NULL);
+ Instance->Dhcp6 = NULL;
+
+ IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
+
+ //
+ // Close DHCPv6 protocol and destroy the child.
+ //
+ Status = gBS->CloseProtocol (
+ Instance->Dhcp6Handle,
+ &gEfiDhcp6ProtocolGuid,
+ IpSb->Image,
+ IpSb->Controller
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = NetLibDestroyServiceChild (
+ IpSb->Controller,
+ IpSb->Image,
+ &gEfiDhcp6ServiceBindingProtocolGuid,
+ Instance->Dhcp6Handle
+ );
+
+ Instance->Dhcp6Handle = NULL;
+
+ return Status;
+}
+
--
cgit