/**
Parse the DHCP ACK to get Dns6 server information.
@param Image The handle of the driver image.
@param Controller The handle of the controller.
@param DnsServerCount Retrieved Dns6 server Ip count.
@param DnsServerList Retrieved Dns6 server Ip list.
@retval EFI_SUCCESS The Dns6 information is got from the DHCP ACK.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_NO_MEDIA There was a media error.
@retval Others Other errors as indicated.
**/
EFI_STATUS
GetDns6ServerFromDhcp6 (
IN EFI_HANDLE Image,
IN EFI_HANDLE Controller,
OUT UINT32 *DnsServerCount,
OUT EFI_IPv6_ADDRESS **DnsServerList
)
{
EFI_HANDLE Dhcp6Handle;
EFI_DHCP6_PROTOCOL *Dhcp6;
EFI_STATUS Status;
EFI_STATUS TimerStatus;
EFI_DHCP6_PACKET_OPTION *Oro;
EFI_DHCP6_RETRANSMISSION InfoReqReXmit;
EFI_EVENT Timer;
EFI_STATUS MediaStatus;
DNS6_SERVER_INFOR DnsServerInfor;
Dhcp6Handle = NULL;
Dhcp6 = NULL;
Oro = NULL;
Timer = NULL;
ZeroMem (&DnsServerInfor, sizeof (DNS6_SERVER_INFOR));
DnsServerInfor.ServerCount = DnsServerCount;
//
// Check media status before doing DHCP.
//
MediaStatus = EFI_SUCCESS;
NetLibDetectMediaWaitTimeout (Controller, DNS_CHECK_MEDIA_GET_DHCP_WAITING_TIME, &MediaStatus);
if (MediaStatus != EFI_SUCCESS) {
return EFI_NO_MEDIA;
}
//
// Create a DHCP6 child instance and get the protocol.
//
Status = NetLibCreateServiceChild (
Controller,
Image,
&gEfiDhcp6ServiceBindingProtocolGuid,
&Dhcp6Handle
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->OpenProtocol (
Dhcp6Handle,
&gEfiDhcp6ProtocolGuid,
(VOID **) &Dhcp6,
Image,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
Oro = AllocateZeroPool (sizeof (EFI_DHCP6_PACKET_OPTION) + 1);
if (Oro == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
//
// Ask the server to reply with DNS options.
// All members in EFI_DHCP6_PACKET_OPTION are in network order.
//
Oro->OpCode = HTONS (DHCP6_TAG_DNS_REQUEST);
Oro->OpLen = HTONS (2);
Oro->Data[1] = DHCP6_TAG_DNS_SERVER;
InfoReqReXmit.Irt = 4;
InfoReqReXmit.Mrc = 1;
InfoReqReXmit.Mrt = 10;
InfoReqReXmit.Mrd = 30;
Status = Dhcp6->InfoRequest (
Dhcp6,
TRUE,
Oro,
0,
NULL,
&InfoReqReXmit,
NULL,
ParseDhcp6Ack,
&DnsServerInfor
);
if (Status == EFI_NO_MAPPING) {
Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
Status = gBS->SetTimer (
Timer,
TimerRelative,
DNS_TIME_TO_GETMAP * TICKS_PER_SECOND
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
do {
TimerStatus = gBS->CheckEvent (Timer);
if (!EFI_ERROR (TimerStatus)) {
Status = Dhcp6->InfoRequest (
Dhcp6,
TRUE,
Oro,
0,
NULL,
&InfoReqReXmit,
NULL,
ParseDhcp6Ack,
&DnsServerInfor
);
}
} while (TimerStatus == EFI_NOT_READY);
}
*DnsServerList = DnsServerInfor.ServerList;
ON_EXIT:
if (Oro != NULL) {
FreePool (Oro);
}
if (Timer != NULL) {
gBS->CloseEvent (Timer);
}
if (Dhcp6 != NULL) {
gBS->CloseProtocol (
Dhcp6Handle,
&gEfiDhcp6ProtocolGuid,
Image,
Controller
);
}
NetLibDestroyServiceChild (
Controller,
Image,
&gEfiDhcp6ServiceBindingProtocolGuid,
Dhcp6Handle
);
return Status;
}
/**
The list process of the ifconfig command.
@param[in] IfList The pointer of IfList(interface list).
@retval SHELL_SUCCESS The ifconfig command list processed successfully.
@retval others The ifconfig command list process failed.
**/
SHELL_STATUS
IfConfigShowInterfaceInfo (
IN LIST_ENTRY *IfList
)
{
LIST_ENTRY *Entry;
LIST_ENTRY *Next;
IFCONFIG_INTERFACE_CB *IfCb;
EFI_STATUS MediaStatus;
EFI_IPv4_ADDRESS Gateway;
UINT32 Index;
MediaStatus = EFI_SUCCESS;
if (IsListEmpty (IfList)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INVALID_INTERFACE), gShellNetwork1HiiHandle);
}
//
// Go through the interface list.
//
NET_LIST_FOR_EACH_SAFE (Entry, Next, IfList) {
IfCb = NET_LIST_USER_STRUCT (Entry, IFCONFIG_INTERFACE_CB, Link);
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_BREAK), gShellNetwork1HiiHandle);
//
// Print interface name.
//
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_IF_NAME), gShellNetwork1HiiHandle, IfCb->IfInfo->Name);
//
// Get Media State.
//
if (EFI_SUCCESS == NetLibDetectMediaWaitTimeout (IfCb->NicHandle, 0, &MediaStatus)) {
if (MediaStatus != EFI_SUCCESS) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_MEDIA_STATE), gShellNetwork1HiiHandle, L"Media disconnected");
} else {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_MEDIA_STATE), gShellNetwork1HiiHandle, L"Media present");
}
} else {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_MEDIA_STATE), gShellNetwork1HiiHandle, L"Media state unknown");
}
//
// Print interface config policy.
//
if (IfCb->Policy == Ip4Config2PolicyDhcp) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_POLICY_DHCP), gShellNetwork1HiiHandle);
} else {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_POLICY_MAN), gShellNetwork1HiiHandle);
}
//
// Print mac address of the interface.
//
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_MAC_ADDR_HEAD), gShellNetwork1HiiHandle);
IfConfigPrintMacAddr (
IfCb->IfInfo->HwAddress.Addr,
IfCb->IfInfo->HwAddressSize
);
//
// Print IPv4 address list of the interface.
//
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_IP_ADDR_HEAD), gShellNetwork1HiiHandle);
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN (STR_IFCONFIG_INFO_IP_ADDR_BODY),
gShellNetwork1HiiHandle,
(UINTN)IfCb->IfInfo->StationAddress.Addr[0],
(UINTN)IfCb->IfInfo->StationAddress.Addr[1],
(UINTN)IfCb->IfInfo->StationAddress.Addr[2],
(UINTN)IfCb->IfInfo->StationAddress.Addr[3]
);
//
// Print subnet mask list of the interface.
//
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_SUBNET_MASK_HEAD), gShellNetwork1HiiHandle);
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN (STR_IFCONFIG_INFO_IP_ADDR_BODY),
gShellNetwork1HiiHandle,
(UINTN)IfCb->IfInfo->SubnetMask.Addr[0],
(UINTN)IfCb->IfInfo->SubnetMask.Addr[1],
(UINTN)IfCb->IfInfo->SubnetMask.Addr[2],
(UINTN)IfCb->IfInfo->SubnetMask.Addr[3]
);
//
// Print default gateway of the interface.
//
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_GATEWAY_HEAD), gShellNetwork1HiiHandle);
ZeroMem (&Gateway, sizeof (EFI_IPv4_ADDRESS));
for (Index = 0; Index < IfCb->IfInfo->RouteTableSize; Index++) {
if ((CompareMem (&IfCb->IfInfo->RouteTable[Index].SubnetAddress, &mZeroIp4Addr, sizeof (EFI_IPv4_ADDRESS)) == 0) &&
(CompareMem (&IfCb->IfInfo->RouteTable[Index].SubnetMask , &mZeroIp4Addr, sizeof (EFI_IPv4_ADDRESS)) == 0) ){
CopyMem (&Gateway, &IfCb->IfInfo->RouteTable[Index].GatewayAddress, sizeof (EFI_IPv4_ADDRESS));
}
}
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN (STR_IFCONFIG_INFO_IP_ADDR_BODY),
gShellNetwork1HiiHandle,
(UINTN)Gateway.Addr[0],
(UINTN)Gateway.Addr[1],
(UINTN)Gateway.Addr[2],
(UINTN)Gateway.Addr[3]
);
//
// Print route table entry.
//
ShellPrintHiiEx(-1, -1, NULL,STRING_TOKEN (STR_IFCONFIG_ROUTES_SIZE), gShellNetwork1HiiHandle, IfCb->IfInfo->RouteTableSize);
for (Index = 0; Index < IfCb->IfInfo->RouteTableSize; Index++) {
ShellPrintHiiEx(-1, -1, NULL,STRING_TOKEN (STR_IFCONFIG_ROUTES_ENTRY_INDEX), gShellNetwork1HiiHandle, Index);
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN (STR_IFCONFIG_SHOW_IP_ADDR),
gShellNetwork1HiiHandle,
L"Subnet ",
(UINTN)IfCb->IfInfo->RouteTable[Index].SubnetAddress.Addr[0],
(UINTN)IfCb->IfInfo->RouteTable[Index].SubnetAddress.Addr[1],
(UINTN)IfCb->IfInfo->RouteTable[Index].SubnetAddress.Addr[2],
(UINTN)IfCb->IfInfo->RouteTable[Index].SubnetAddress.Addr[3]
);
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN (STR_IFCONFIG_SHOW_IP_ADDR),
gShellNetwork1HiiHandle,
L"Netmask",
(UINTN)IfCb->IfInfo->RouteTable[Index].SubnetMask.Addr[0],
(UINTN)IfCb->IfInfo->RouteTable[Index].SubnetMask.Addr[1],
(UINTN)IfCb->IfInfo->RouteTable[Index].SubnetMask.Addr[2],
(UINTN)IfCb->IfInfo->RouteTable[Index].SubnetMask.Addr[3]
);
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN (STR_IFCONFIG_SHOW_IP_ADDR),
gShellNetwork1HiiHandle,
L"Gateway",
(UINTN)IfCb->IfInfo->RouteTable[Index].GatewayAddress.Addr[0],
(UINTN)IfCb->IfInfo->RouteTable[Index].GatewayAddress.Addr[1],
(UINTN)IfCb->IfInfo->RouteTable[Index].GatewayAddress.Addr[2],
(UINTN)IfCb->IfInfo->RouteTable[Index].GatewayAddress.Addr[3]
);
}
//
// Print dns server addresses list of the interface if has.
//
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_DNS_ADDR_HEAD), gShellNetwork1HiiHandle);
for (Index = 0; Index < IfCb->DnsCnt; Index++) {
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN (STR_IFCONFIG_INFO_DNS_ADDR_BODY),
gShellNetwork1HiiHandle,
(UINTN) IfCb->DnsAddr[Index].Addr[0],
(UINTN) IfCb->DnsAddr[Index].Addr[1],
(UINTN) IfCb->DnsAddr[Index].Addr[2],
(UINTN) IfCb->DnsAddr[Index].Addr[3]
);
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG_INFO_NEWLINE), gShellNetwork1HiiHandle);
}
}
/**
Parse the DHCP ACK to get Dns4 server information.
@param Instance The DNS instance.
@param DnsServerCount Retrieved Dns4 server Ip count.
@param DnsServerList Retrieved Dns4 server Ip list.
@retval EFI_SUCCESS The Dns4 information is got from the DHCP ACK.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_NO_MEDIA There was a media error.
@retval Others Other errors as indicated.
**/
EFI_STATUS
GetDns4ServerFromDhcp4 (
IN DNS_INSTANCE *Instance,
OUT UINT32 *DnsServerCount,
OUT EFI_IPv4_ADDRESS **DnsServerList
)
{
EFI_STATUS Status;
EFI_HANDLE Image;
EFI_HANDLE Controller;
EFI_STATUS MediaStatus;
EFI_HANDLE MnpChildHandle;
EFI_MANAGED_NETWORK_PROTOCOL *Mnp;
EFI_MANAGED_NETWORK_CONFIG_DATA MnpConfigData;
EFI_HANDLE Dhcp4Handle;
EFI_DHCP4_PROTOCOL *Dhcp4;
EFI_IP4_CONFIG2_PROTOCOL *Ip4Config2;
UINTN DataSize;
VOID *Data;
EFI_IP4_CONFIG2_INTERFACE_INFO *InterfaceInfo;
EFI_DHCP4_PACKET SeedPacket;
EFI_DHCP4_PACKET_OPTION *ParaList[2];
DNS4_SERVER_INFOR DnsServerInfor;
EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN Token;
BOOLEAN IsDone;
UINTN Index;
Image = Instance->Service->ImageHandle;
Controller = Instance->Service->ControllerHandle;
MnpChildHandle = NULL;
Mnp = NULL;
Dhcp4Handle = NULL;
Dhcp4 = NULL;
Ip4Config2 = NULL;
DataSize = 0;
Data = NULL;
InterfaceInfo = NULL;
ZeroMem ((UINT8 *) ParaList, sizeof (ParaList));
ZeroMem (&MnpConfigData, sizeof (EFI_MANAGED_NETWORK_CONFIG_DATA));
ZeroMem (&DnsServerInfor, sizeof (DNS4_SERVER_INFOR));
ZeroMem (&Token, sizeof (EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN));
DnsServerInfor.ServerCount = DnsServerCount;
IsDone = FALSE;
//
// Check media.
//
MediaStatus = EFI_SUCCESS;
NetLibDetectMediaWaitTimeout (Controller, DNS_CHECK_MEDIA_GET_DHCP_WAITING_TIME, &MediaStatus);
if (MediaStatus != EFI_SUCCESS) {
return EFI_NO_MEDIA;
}
//
// Create a Mnp child instance, get the protocol and config for it.
//
Status = NetLibCreateServiceChild (
Controller,
Image,
&gEfiManagedNetworkServiceBindingProtocolGuid,
&MnpChildHandle
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->OpenProtocol (
MnpChildHandle,
&gEfiManagedNetworkProtocolGuid,
(VOID **) &Mnp,
Image,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
MnpConfigData.ReceivedQueueTimeoutValue = 0;
MnpConfigData.TransmitQueueTimeoutValue = 0;
MnpConfigData.ProtocolTypeFilter = IP4_ETHER_PROTO;
MnpConfigData.EnableUnicastReceive = TRUE;
MnpConfigData.EnableMulticastReceive = TRUE;
MnpConfigData.EnableBroadcastReceive = TRUE;
MnpConfigData.EnablePromiscuousReceive = FALSE;
MnpConfigData.FlushQueuesOnReset = TRUE;
MnpConfigData.EnableReceiveTimestamps = FALSE;
MnpConfigData.DisableBackgroundPolling = FALSE;
Status = Mnp->Configure(Mnp, &MnpConfigData);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Create a DHCP4 child instance and get the protocol.
//
Status = NetLibCreateServiceChild (
Controller,
Image,
&gEfiDhcp4ServiceBindingProtocolGuid,
&Dhcp4Handle
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
Status = gBS->OpenProtocol (
Dhcp4Handle,
&gEfiDhcp4ProtocolGuid,
(VOID **) &Dhcp4,
Image,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Get Ip4Config2 instance info.
//
Status = gBS->HandleProtocol (Controller, &gEfiIp4Config2ProtocolGuid, (VOID **) &Ip4Config2);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
Status = Ip4Config2->GetData (Ip4Config2, Ip4Config2DataTypeInterfaceInfo, &DataSize, Data);
if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {
goto ON_EXIT;
}
Data = AllocateZeroPool (DataSize);
if (Data == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
Status = Ip4Config2->GetData (Ip4Config2, Ip4Config2DataTypeInterfaceInfo, &DataSize, Data);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
InterfaceInfo = (EFI_IP4_CONFIG2_INTERFACE_INFO *)Data;
//
// Build required Token.
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
DhcpCommonNotify,
&IsDone,
&Token.CompletionEvent
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
SetMem (&Token.RemoteAddress, sizeof (EFI_IPv4_ADDRESS), 0xff);
Token.RemotePort = 67;
Token.ListenPointCount = 1;
Token.ListenPoints = AllocateZeroPool (Token.ListenPointCount * sizeof (EFI_DHCP4_LISTEN_POINT));
if (Token.ListenPoints == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
if (Instance->Dns4CfgData.UseDefaultSetting) {
CopyMem (&(Token.ListenPoints[0].ListenAddress), &(InterfaceInfo->StationAddress), sizeof (EFI_IPv4_ADDRESS));
CopyMem (&(Token.ListenPoints[0].SubnetMask), &(InterfaceInfo->SubnetMask), sizeof (EFI_IPv4_ADDRESS));
} else {
CopyMem (&(Token.ListenPoints[0].ListenAddress), &(Instance->Dns4CfgData.StationIp), sizeof (EFI_IPv4_ADDRESS));
CopyMem (&(Token.ListenPoints[0].SubnetMask), &(Instance->Dns4CfgData.SubnetMask), sizeof (EFI_IPv4_ADDRESS));
}
Token.ListenPoints[0].ListenPort = 68;
Token.TimeoutValue = DNS_TIME_TO_GETMAP;
DnsInitSeedPacket (&SeedPacket, InterfaceInfo);
ParaList[0] = AllocateZeroPool (sizeof (EFI_DHCP4_PACKET_OPTION));
if (ParaList[0] == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
ParaList[0]->OpCode = DHCP4_TAG_TYPE;
ParaList[0]->Length = 1;
ParaList[0]->Data[0] = DHCP4_MSG_REQUEST;
ParaList[1] = AllocateZeroPool (sizeof (EFI_DHCP4_PACKET_OPTION));
if (ParaList[1] == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
ParaList[1]->OpCode = DHCP4_TAG_PARA_LIST;
ParaList[1]->Length = 1;
ParaList[1]->Data[0] = DHCP4_TAG_DNS_SERVER;
Status = Dhcp4->Build (Dhcp4, &SeedPacket, 0, NULL, 2, ParaList, &Token.Packet);
Token.Packet->Dhcp4.Header.Xid = HTONL(NET_RANDOM (NetRandomInitSeed ()));
Token.Packet->Dhcp4.Header.Reserved = HTONS ((UINT16)0x8000);
if (Instance->Dns4CfgData.UseDefaultSetting) {
CopyMem (&(Token.Packet->Dhcp4.Header.ClientAddr), &(InterfaceInfo->StationAddress), sizeof (EFI_IPv4_ADDRESS));
} else {
CopyMem (&(Token.Packet->Dhcp4.Header.ClientAddr), &(Instance->Dns4CfgData.StationIp), sizeof (EFI_IPv4_ADDRESS));
}
CopyMem (Token.Packet->Dhcp4.Header.ClientHwAddr, &(InterfaceInfo->HwAddress), InterfaceInfo->HwAddressSize);
Token.Packet->Dhcp4.Header.HwAddrLen = (UINT8)(InterfaceInfo->HwAddressSize);
//
// TransmitReceive Token
//
Status = Dhcp4->TransmitReceive (Dhcp4, &Token);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Poll the packet
//
do {
Status = Mnp->Poll (Mnp);
} while (!IsDone);
//
// Parse the ACK to get required information if received done.
//
if (IsDone && !EFI_ERROR (Token.Status)) {
for (Index = 0; Index < Token.ResponseCount; Index++) {
Status = ParseDhcp4Ack (Dhcp4, &Token.ResponseList[Index], &DnsServerInfor);
if (!EFI_ERROR (Status)) {
break;
}
}
*DnsServerList = DnsServerInfor.ServerList;
} else {
Status = Token.Status;
}
ON_EXIT:
if (Data != NULL) {
FreePool (Data);
}
for (Index = 0; Index < 2; Index++) {
if (ParaList[Index] != NULL) {
FreePool (ParaList[Index]);
}
}
if (Token.ListenPoints) {
FreePool (Token.ListenPoints);
}
if (Token.Packet) {
FreePool (Token.Packet);
}
if (Token.ResponseList != NULL) {
FreePool (Token.ResponseList);
}
if (Token.CompletionEvent != NULL) {
gBS->CloseEvent (Token.CompletionEvent);
}
if (Dhcp4 != NULL) {
Dhcp4->Stop (Dhcp4);
Dhcp4->Configure (Dhcp4, NULL);
gBS->CloseProtocol (
Dhcp4Handle,
&gEfiDhcp4ProtocolGuid,
Image,
Controller
);
}
if (Dhcp4Handle != NULL) {
NetLibDestroyServiceChild (
Controller,
Image,
&gEfiDhcp4ServiceBindingProtocolGuid,
Dhcp4Handle
);
}
if (Mnp != NULL) {
Mnp->Configure (Mnp, NULL);
gBS->CloseProtocol (
MnpChildHandle,
&gEfiManagedNetworkProtocolGuid,
Image,
Controller
);
}
NetLibDestroyServiceChild (
Controller,
Image,
&gEfiManagedNetworkServiceBindingProtocolGuid,
MnpChildHandle
);
return Status;
}
/**
Starts the DHCPv6 standard S.A.R.R. process.
The Start() function starts the DHCPv6 standard process. This function can
be called only when the state of Dhcp6 instance is in the Dhcp6Init state.
If the DHCP process completes successfully, the state of the Dhcp6 instance
will be transferred through Dhcp6Selecting and Dhcp6Requesting to the
Dhcp6Bound state.
Refer to rfc-3315 for precise state transitions during this process. At the
time when each event occurs in this process, the callback function that was set
by EFI_DHCP6_PROTOCOL.Configure() will be called, and the user can take this
opportunity to control the process.
@param[in] This The pointer to Dhcp6 protocol.
@retval EFI_SUCCESS The DHCPv6 standard process has started, or it has
completed when CompletionEvent is NULL.
@retval EFI_ACCESS_DENIED The EFI DHCPv6 Child instance hasn't been configured.
@retval EFI_INVALID_PARAMETER This is NULL.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_TIMEOUT The DHCPv6 configuration process failed because no
response was received from the server within the
specified timeout value.
@retval EFI_ABORTED The user aborted the DHCPv6 process.
@retval EFI_ALREADY_STARTED Some other Dhcp6 instance already started the DHCPv6
standard process.
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
@retval EFI_NO_MEDIA There was a media error.
**/
EFI_STATUS
EFIAPI
EfiDhcp6Start (
IN EFI_DHCP6_PROTOCOL *This
)
{
EFI_STATUS Status;
EFI_TPL OldTpl;
DHCP6_INSTANCE *Instance;
DHCP6_SERVICE *Service;
EFI_STATUS MediaStatus;
if (This == NULL) {
return EFI_INVALID_PARAMETER;
}
Instance = DHCP6_INSTANCE_FROM_THIS (This);
Service = Instance->Service;
//
// The instance hasn't been configured.
//
if (Instance->Config == NULL) {
return EFI_ACCESS_DENIED;
}
ASSERT (Instance->IaCb.Ia != NULL);
//
// The instance has already been started.
//
if (Instance->IaCb.Ia->State != Dhcp6Init) {
return EFI_ALREADY_STARTED;
}
OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
//
// Check Media Satus.
//
MediaStatus = EFI_SUCCESS;
NetLibDetectMediaWaitTimeout (Service->Controller, DHCP_CHECK_MEDIA_WAITING_TIME, &MediaStatus);
if (MediaStatus != EFI_SUCCESS) {
Status = EFI_NO_MEDIA;
goto ON_ERROR;
}
Instance->UdpSts = EFI_ALREADY_STARTED;
//
// Send the solicit message to start S.A.R.R process.
//
Status = Dhcp6SendSolicitMsg (Instance);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
//
// Register receive callback for the stateful exchange process.
//
Status = UdpIoRecvDatagram(
Service->UdpIo,
Dhcp6ReceivePacket,
Service,
0
);
if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {
goto ON_ERROR;
}
gBS->RestoreTPL (OldTpl);
//
// Poll udp out of the net tpl if synchronous call.
//
if (Instance->Config->IaInfoEvent == NULL) {
while (Instance->UdpSts == EFI_ALREADY_STARTED) {
Service->UdpIo->Protocol.Udp6->Poll (Service->UdpIo->Protocol.Udp6);
}
return Instance->UdpSts;
}
return EFI_SUCCESS;
ON_ERROR:
gBS->RestoreTPL (OldTpl);
return Status;
}
