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NetworkPkg/Ip6Dxe: Support SetData interface to clear specific configuration 

UEFI Spec 2.7 adds the clarification on SetData interface usage to clear specific
individual data types. This patch is to support this feature.

Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
This commit is contained in:
Jiaxin Wu 2017-02-28 08:35:26 +08:00
parent 1126570464
commit bee7fe0ef9
1 changed files with 430 additions and 324 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

754
NetworkPkg/Ip6Dxe/Ip6ConfigImpl.c
View File

@ -953,10 +953,26 @@ Ip6ConfigSetManualAddress (
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 % sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS)) != 0) || (DataSize == 0)) {
if ((DataSize != 0) && ((DataSize % sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS)) != 0)) {
return EFI_BAD_BUFFER_SIZE;
}
@ -964,239 +980,302 @@ Ip6ConfigSetManualAddress (
return EFI_WRITE_PROTECTED;
}
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;
}
}
}
IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
//
// Build the current source address list.
//
InitializeListHead (&CurrentSourceList);
CurrentSourceCount = 0;
DataItem = &Instance->DataItem[Ip6ConfigDataTypeManualAddress];
NET_LIST_FOR_EACH (Entry, &IpSb->Interfaces) {
IpIf = NET_LIST_USER_STRUCT_S (Entry, IP6_INTERFACE, Link, IP6_INTERFACE_SIGNATURE);
if (Data != NULL && DataSize != 0) {
NewAddressCount = DataSize / sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS);
NewAddress = (EFI_IP6_CONFIG_MANUAL_ADDRESS *) Data;
NET_LIST_FOR_EACH (Entry2, &IpIf->AddressList) {
CurrentAddrInfo = NET_LIST_USER_STRUCT_S (Entry2, IP6_ADDRESS_INFO, Link, IP6_ADDR_INFO_SIGNATURE);
for (Index1 = 0; Index1 < NewAddressCount; Index1++, NewAddress++) {
Copy = AllocateCopyPool (sizeof (IP6_ADDRESS_INFO), CurrentAddrInfo);
if (Copy == NULL) {
break;
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;
}
InsertTailList (&CurrentSourceList, &Copy->Link);
CurrentSourceCount++;
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;
}
}
}
}
//
// Update the value... a long journey starts
//
NewAddress = AllocateCopyPool (DataSize, Data);
if (NewAddress == NULL) {
Ip6RemoveAddr (NULL, &CurrentSourceList, &CurrentSourceCount, NULL, 0);
//
// Build the current source address list.
//
InitializeListHead (&CurrentSourceList);
CurrentSourceCount = 0;
return EFI_OUT_OF_RESOURCES;
}
NET_LIST_FOR_EACH (Entry, &IpSb->Interfaces) {
IpIf = NET_LIST_USER_STRUCT_S (Entry, IP6_INTERFACE, Link, IP6_INTERFACE_SIGNATURE);
//
// Store the new data, and init the DataItem status to EFI_NOT_READY because
// we may have an asynchronous configuration process.
//
DataItem = &Instance->DataItem[Ip6ConfigDataTypeManualAddress];
if (DataItem->Data.Ptr != NULL) {
FreePool (DataItem->Data.Ptr);
}
DataItem->Data.Ptr = NewAddress;
DataItem->DataSize = DataSize;
DataItem->Status = EFI_NOT_READY;
NET_LIST_FOR_EACH (Entry2, &IpIf->AddressList) {
CurrentAddrInfo = NET_LIST_USER_STRUCT_S (Entry2, IP6_ADDRESS_INFO, Link, IP6_ADDR_INFO_SIGNATURE);
//
// Trigger DAD, it's an asynchronous process.
//
IsUpdated = FALSE;
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);
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.
// This local address is going to be removed, the IP instances that are
// currently using it will be destroyed.
//
Ip6RemoveAddr (
NULL,
&CurrentSourceList,
&CurrentSourceCount,
IpSb,
&IpIf->AddressList,
&IpIf->AddressCount,
&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.
// Remove the on-link prefix table, the route entry will be removed
// implicitly.
//
PrefixEntry = Ip6FindPrefixListEntry (
IpSb,
TRUE,
NewAddress->PrefixLength,
&NewAddress->Address
CurrentAddrInfo->PrefixLength,
&CurrentAddrInfo->Address
);
if (PrefixEntry == NULL) {
Ip6CreatePrefixListEntry (
IpSb,
TRUE,
(UINT32) IP6_INFINIT_LIFETIME,
(UINT32) IP6_INFINIT_LIFETIME,
NewAddress->PrefixLength,
&NewAddress->Address
);
if (PrefixEntry != NULL) {
Ip6DestroyPrefixListEntry (IpSb, PrefixEntry, TRUE, FALSE);
}
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);
}
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;
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 {
Status = EFI_SUCCESS;
//
// No update is taken, reset the status to success and return EFI_ABORTED.
//
DataItem->Status = EFI_SUCCESS;
Status = EFI_ABORTED;
}
} else {
//
// No update is taken, reset the status to success and return EFI_ABORTED.
// DataSize is 0 and Data is NULL, clean up the manual address.
//
DataItem->Status = EFI_SUCCESS;
Status = EFI_ABORTED;
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;
@ -1244,7 +1323,15 @@ Ip6ConfigSetGateway (
IP6_DEFAULT_ROUTER *DefaultRouter;
VOID *Tmp;
if ((DataSize % sizeof (EFI_IPv6_ADDRESS) != 0) || (DataSize == 0)) {
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;
}
@ -1252,86 +1339,87 @@ Ip6ConfigSetGateway (
return EFI_WRITE_PROTECTED;
}
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;
}
}
}
IpSb = IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE (Instance);
Item = &Instance->DataItem[Ip6ConfigDataTypeGateway];
OldGateway = Item->Data.Gateway;
OldGatewayCount = Item->DataSize / sizeof (EFI_IPv6_ADDRESS);
OneRemoved = FALSE;
OneAdded = FALSE;
if (NewGatewayCount != OldGatewayCount) {
Tmp = AllocatePool (DataSize);
if (Tmp == NULL) {
return EFI_OUT_OF_RESOURCES;
}
} else {
Tmp = NULL;
}
for (Index1 = 0; Index1 < OldGatewayCount; Index1++) {
//
// Find the gateways that are no long in the new setting and remove them.
// Remove this default router.
//
for (Index2 = 0; Index2 < NewGatewayCount; Index2++) {
if (EFI_IP6_EQUAL (OldGateway + Index1, NewGateway + Index2)) {
OneRemoved = TRUE;
break;
}
}
if (Index2 == NewGatewayCount) {
//
// Remove this default router.
//
DefaultRouter = Ip6FindDefaultRouter (IpSb, OldGateway + Index1);
if (DefaultRouter != NULL) {
Ip6DestroyDefaultRouter (IpSb, DefaultRouter);
}
DefaultRouter = Ip6FindDefaultRouter (IpSb, OldGateway + Index1);
if (DefaultRouter != NULL) {
Ip6DestroyDefaultRouter (IpSb, DefaultRouter);
OneRemoved = TRUE;
}
}
for (Index1 = 0; Index1 < NewGatewayCount; Index1++) {
if (Data != NULL && DataSize != 0) {
NewGateway = (EFI_IPv6_ADDRESS *) Data;
NewGatewayCount = DataSize / sizeof (EFI_IPv6_ADDRESS);
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 (!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 (!OneRemoved && !OneAdded) {
Item->Status = EFI_SUCCESS;
return EFI_ABORTED;
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 {
if (Tmp != NULL) {
if (Item->Data.Ptr != NULL) {
FreePool (Item->Data.Ptr);
}
Item->Data.Ptr = Tmp;
//
// DataSize is 0 and Data is NULL, clean up the Gateway address.
//
if (Item->Data.Ptr != NULL) {
FreePool (Item->Data.Ptr);
}
CopyMem (Item->Data.Ptr, Data, DataSize);
Item->DataSize = DataSize;
Item->Status = EFI_SUCCESS;
return EFI_SUCCESS;
Item->Data.Ptr = NULL;
Item->DataSize = 0;
Item->Status = EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
/**
@ -1373,7 +1461,12 @@ Ip6ConfigSetDnsServer (
BOOLEAN OneAdded;
VOID *Tmp;
if ((DataSize % sizeof (EFI_IPv6_ADDRESS) != 0) || (DataSize == 0)) {
OldDns = NULL;
NewDns = NULL;
Item = NULL;
Tmp = NULL;
if ((DataSize == 0) && (DataSize % sizeof (EFI_IPv6_ADDRESS) != 0)) {
return EFI_BAD_BUFFER_SIZE;
}
@ -1381,75 +1474,89 @@ Ip6ConfigSetDnsServer (
return EFI_WRITE_PROTECTED;
}
Item = &Instance->DataItem[Ip6ConfigDataTypeDnsServer];
NewDns = (EFI_IPv6_ADDRESS *) Data;
OldDns = Item->Data.DnsServers;
NewDnsCount = DataSize / sizeof (EFI_IPv6_ADDRESS);
OldDnsCount = Item->DataSize / sizeof (EFI_IPv6_ADDRESS);
OneAdded = FALSE;
Item = &Instance->DataItem[Ip6ConfigDataTypeDnsServer];
if (NewDnsCount != OldDnsCount) {
Tmp = AllocatePool (DataSize);
if (Tmp == NULL) {
return EFI_OUT_OF_RESOURCES;
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;
}
} else {
Tmp = NULL;
}
for (NewIndex = 0; NewIndex < NewDnsCount; NewIndex++) {
for (NewIndex = 0; NewIndex < NewDnsCount; NewIndex++) {
if (!NetIp6IsValidUnicast (NewDns + 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)) {
//
// The dns server address must be unicast.
// No new item is added and the size is the same.
//
Item->Status = EFI_SUCCESS;
return EFI_ABORTED;
} else {
if (Tmp != NULL) {
FreePool (Tmp);
if (Item->Data.Ptr != NULL) {
FreePool (Item->Data.Ptr);
}
Item->Data.Ptr = 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;
CopyMem (Item->Data.Ptr, Data, DataSize);
Item->DataSize = DataSize;
Item->Status = EFI_SUCCESS;
}
for (OldIndex = 0; OldIndex < OldDnsCount; OldIndex++) {
if (EFI_IP6_EQUAL (NewDns + NewIndex, OldDns + OldIndex)) {
//
// If found break out.
//
break;
}
}
if (OldIndex == OldDnsCount) {
OneAdded = TRUE;
} 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;
}
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;
}
return EFI_SUCCESS;
}
/**
@ -1858,9 +1965,8 @@ Ip6ConfigOnDhcp6SbInstalled (
network stack was set successfully.
@retval EFI_INVALID_PARAMETER One or more of the following are TRUE:
- This is NULL.
- Data is NULL.
- One or more fields in Data do not match the requirement of the
data type indicated by DataType.
- 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
@ -1888,7 +1994,7 @@ EfiIp6ConfigSetData (
IP6_CONFIG_INSTANCE *Instance;
IP6_SERVICE *IpSb;
if ((This == NULL) || (Data == NULL)) {
if ((This == NULL) || (Data == NULL && DataSize != 0) || (Data != NULL && DataSize == 0)) {
return EFI_INVALID_PARAMETER;
}