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audk/NetworkPkg/HttpBootDxe/HttpBootDhcp6.c

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/** @file
Functions implementation related with DHCPv6 for HTTP boot driver.
Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "HttpBootDxe.h"
/**
Build the options buffer for the DHCPv6 request packet.
@param[in] Private The pointer to HTTP BOOT driver private data.
@param[out] OptList The pointer to the option pointer array.
@param[in] Buffer The pointer to the buffer to contain the option list.
@return Index The count of the built-in options.
**/
UINT32
HttpBootBuildDhcp6Options (
IN HTTP_BOOT_PRIVATE_DATA *Private,
OUT EFI_DHCP6_PACKET_OPTION **OptList,
IN UINT8 *Buffer
)
{
HTTP_BOOT_DHCP6_OPTION_ENTRY OptEnt;
UINT16 Value;
UINT32 Index;
Index = 0;
OptList[0] = (EFI_DHCP6_PACKET_OPTION *) Buffer;
//
// Append client option request option
//
OptList[Index]->OpCode = HTONS (HTTP_BOOT_DHCP6_OPT_ORO);
OptList[Index]->OpLen = HTONS (8);
OptEnt.Oro = (HTTP_BOOT_DHCP6_OPTION_ORO *) OptList[Index]->Data;
OptEnt.Oro->OpCode[0] = HTONS(HTTP_BOOT_DHCP6_OPT_BOOT_FILE_URL);
OptEnt.Oro->OpCode[1] = HTONS(HTTP_BOOT_DHCP6_OPT_BOOT_FILE_PARAM);
OptEnt.Oro->OpCode[2] = HTONS(HTTP_BOOT_DHCP6_OPT_DNS_SERVERS);
OptEnt.Oro->OpCode[3] = HTONS(HTTP_BOOT_DHCP6_OPT_VENDOR_CLASS);
Index++;
OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);
//
// Append client network device interface option
//
OptList[Index]->OpCode = HTONS (HTTP_BOOT_DHCP6_OPT_UNDI);
OptList[Index]->OpLen = HTONS ((UINT16)3);
OptEnt.Undi = (HTTP_BOOT_DHCP6_OPTION_UNDI *) OptList[Index]->Data;
if (Private->Nii != NULL) {
OptEnt.Undi->Type = Private->Nii->Type;
OptEnt.Undi->MajorVer = Private->Nii->MajorVer;
OptEnt.Undi->MinorVer = Private->Nii->MinorVer;
} else {
OptEnt.Undi->Type = DEFAULT_UNDI_TYPE;
OptEnt.Undi->MajorVer = DEFAULT_UNDI_MAJOR;
OptEnt.Undi->MinorVer = DEFAULT_UNDI_MINOR;
}
Index++;
OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);
//
// Append client system architecture option
//
OptList[Index]->OpCode = HTONS (HTTP_BOOT_DHCP6_OPT_ARCH);
OptList[Index]->OpLen = HTONS ((UINT16) sizeof (HTTP_BOOT_DHCP6_OPTION_ARCH));
OptEnt.Arch = (HTTP_BOOT_DHCP6_OPTION_ARCH *) OptList[Index]->Data;
Value = HTONS (EFI_HTTP_BOOT_CLIENT_SYSTEM_ARCHITECTURE);
CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));
Index++;
OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);
//
// Append vendor class identify option.
//
OptList[Index]->OpCode = HTONS (HTTP_BOOT_DHCP6_OPT_VENDOR_CLASS);
OptList[Index]->OpLen = HTONS ((UINT16) sizeof (HTTP_BOOT_DHCP6_OPTION_VENDOR_CLASS));
OptEnt.VendorClass = (HTTP_BOOT_DHCP6_OPTION_VENDOR_CLASS *) OptList[Index]->Data;
OptEnt.VendorClass->Vendor = HTONL (HTTP_BOOT_DHCP6_ENTERPRISE_NUM);
OptEnt.VendorClass->ClassLen = HTONS ((UINT16) sizeof (HTTP_BOOT_CLASS_ID));
CopyMem (
&OptEnt.VendorClass->ClassId,
DEFAULT_CLASS_ID_DATA,
sizeof (HTTP_BOOT_CLASS_ID)
);
HttpBootUintnToAscDecWithFormat (
EFI_HTTP_BOOT_CLIENT_SYSTEM_ARCHITECTURE,
OptEnt.VendorClass->ClassId.ArchitectureType,
sizeof (OptEnt.VendorClass->ClassId.ArchitectureType)
);
if (Private->Nii != NULL) {
CopyMem (
OptEnt.VendorClass->ClassId.InterfaceName,
Private->Nii->StringId,
sizeof (OptEnt.VendorClass->ClassId.InterfaceName)
);
HttpBootUintnToAscDecWithFormat (
Private->Nii->MajorVer,
OptEnt.VendorClass->ClassId.UndiMajor,
sizeof (OptEnt.VendorClass->ClassId.UndiMajor)
);
HttpBootUintnToAscDecWithFormat (
Private->Nii->MinorVer,
OptEnt.VendorClass->ClassId.UndiMinor,
sizeof (OptEnt.VendorClass->ClassId.UndiMinor)
);
}
Index++;
return Index;
}
/**
Parse out a DHCPv6 option by OptTag, and find the position in buffer.
@param[in] Buffer The pointer to the option buffer.
@param[in] Length Length of the option buffer.
@param[in] OptTag The required option tag.
@retval NULL Failed to parse the required option.
@retval Others The postion of the required option in buffer.
**/
EFI_DHCP6_PACKET_OPTION *
HttpBootParseDhcp6Options (
IN UINT8 *Buffer,
IN UINT32 Length,
IN UINT16 OptTag
)
{
EFI_DHCP6_PACKET_OPTION *Option;
UINT32 Offset;
Option = (EFI_DHCP6_PACKET_OPTION *) Buffer;
Offset = 0;
//
// OpLen and OpCode here are both stored in network order.
//
while (Offset < Length) {
if (NTOHS (Option->OpCode) == OptTag) {
return Option;
}
Offset += (NTOHS(Option->OpLen) + 4);
Option = (EFI_DHCP6_PACKET_OPTION *) (Buffer + Offset);
}
return NULL;
}
/**
Parse the cached DHCPv6 packet, including all the options.
@param[in] Cache6 The pointer to a cached DHCPv6 packet.
@retval EFI_SUCCESS Parsed the DHCPv6 packet successfully.
@retval EFI_DEVICE_ERROR Failed to parse and invalid the packet.
**/
EFI_STATUS
HttpBootParseDhcp6Packet (
IN HTTP_BOOT_DHCP6_PACKET_CACHE *Cache6
)
{
EFI_DHCP6_PACKET *Offer;
EFI_DHCP6_PACKET_OPTION **Options;
EFI_DHCP6_PACKET_OPTION *Option;
HTTP_BOOT_OFFER_TYPE OfferType;
EFI_IPv6_ADDRESS IpAddr;
BOOLEAN IsProxyOffer;
BOOLEAN IsHttpOffer;
BOOLEAN IsDnsOffer;
BOOLEAN IpExpressedUri;
EFI_STATUS Status;
UINT32 Offset;
UINT32 Length;
IsDnsOffer = FALSE;
IpExpressedUri = FALSE;
IsProxyOffer = TRUE;
IsHttpOffer = FALSE;
Offer = &Cache6->Packet.Offer;
Options = Cache6->OptList;
ZeroMem (Cache6->OptList, sizeof (Cache6->OptList));
Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option);
Offset = 0;
Length = GET_DHCP6_OPTION_SIZE (Offer);
//
// OpLen and OpCode here are both stored in network order, since they are from original packet.
//
while (Offset < Length) {
if (NTOHS (Option->OpCode) == HTTP_BOOT_DHCP6_OPT_IA_NA) {
Options[HTTP_BOOT_DHCP6_IDX_IA_NA] = Option;
} else if (NTOHS (Option->OpCode) == HTTP_BOOT_DHCP6_OPT_BOOT_FILE_URL) {
//
// The server sends this option to inform the client about an URL to a boot file.
//
Options[HTTP_BOOT_DHCP6_IDX_BOOT_FILE_URL] = Option;
} else if (NTOHS (Option->OpCode) == HTTP_BOOT_DHCP6_OPT_BOOT_FILE_PARAM) {
Options[HTTP_BOOT_DHCP6_IDX_BOOT_FILE_PARAM] = Option;
} else if (NTOHS (Option->OpCode) == HTTP_BOOT_DHCP6_OPT_VENDOR_CLASS) {
Options[HTTP_BOOT_DHCP6_IDX_VENDOR_CLASS] = Option;
} else if (NTOHS (Option->OpCode) == HTTP_BOOT_DHCP6_OPT_DNS_SERVERS) {
Options[HTTP_BOOT_DHCP6_IDX_DNS_SERVER] = Option;
}
Offset += (NTOHS (Option->OpLen) + 4);
Option = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option + Offset);
}
//
// The offer with assigned client address is NOT a proxy offer.
// An ia_na option, embeded with valid ia_addr option and a status_code of success.
//
Option = Options[HTTP_BOOT_DHCP6_IDX_IA_NA];
if (Option != NULL) {
Option = HttpBootParseDhcp6Options (
Option->Data + 12,
NTOHS (Option->OpLen),
HTTP_BOOT_DHCP6_OPT_STATUS_CODE
);
if ((Option != NULL && Option->Data[0] == 0) || (Option == NULL)) {
IsProxyOffer = FALSE;
}
}
//
// The offer with "HTTPClient" is a Http offer.
//
Option = Options[HTTP_BOOT_DHCP6_IDX_VENDOR_CLASS];
if (Option != NULL &&
NTOHS(Option->OpLen) >= 10 &&
CompareMem (Option->Data, DEFAULT_CLASS_ID_DATA, 10) == 0) {
IsHttpOffer = TRUE;
}
//
// The offer with Domain Server is a DNS offer.
//
Option = Options[HTTP_BOOT_DHCP6_IDX_DNS_SERVER];
if (Option != NULL) {
IsDnsOffer = TRUE;
}
//
// Http offer must have a boot URI.
//
if (IsHttpOffer && Options[HTTP_BOOT_DHCP6_IDX_BOOT_FILE_URL] == NULL) {
return EFI_DEVICE_ERROR;
}
//
// Try to retrieve the IP of HTTP server from URI.
//
if (IsHttpOffer) {
Status = HttpParseUrl (
(CHAR8*) Options[HTTP_BOOT_DHCP6_IDX_BOOT_FILE_URL]->Data,
(UINT32) AsciiStrLen ((CHAR8*) Options[HTTP_BOOT_DHCP6_IDX_BOOT_FILE_URL]->Data),
FALSE,
&Cache6->UriParser
);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
Status = HttpUrlGetIp6 (
(CHAR8*) Options[HTTP_BOOT_DHCP6_IDX_BOOT_FILE_URL]->Data,
Cache6->UriParser,
&IpAddr
);
IpExpressedUri = !EFI_ERROR (Status);
}
//
// Determine offer type of the DHCPv6 packet.
//
if (IsHttpOffer) {
if (IpExpressedUri) {
OfferType = IsProxyOffer ? HttpOfferTypeProxyIpUri : HttpOfferTypeDhcpIpUri;
} else {
if (!IsProxyOffer) {
OfferType = IsDnsOffer ? HttpOfferTypeDhcpNameUriDns : HttpOfferTypeDhcpNameUri;
} else {
OfferType = HttpOfferTypeProxyNameUri;
}
}
} else {
if (!IsProxyOffer) {
OfferType = IsDnsOffer ? HttpOfferTypeDhcpDns : HttpOfferTypeDhcpOnly;
} else {
return EFI_DEVICE_ERROR;
}
}
Cache6->OfferType = OfferType;
return EFI_SUCCESS;
}
/**
Cache the DHCPv6 packet.
@param[in] Dst The pointer to the cache buffer for DHCPv6 packet.
@param[in] Src The pointer to the DHCPv6 packet to be cached.
**/
VOID
HttpBootCacheDhcp6Packet (
IN EFI_DHCP6_PACKET *Dst,
IN EFI_DHCP6_PACKET *Src
)
{
ASSERT (Dst->Size >= Src->Length);
CopyMem (&Dst->Dhcp6, &Src->Dhcp6, Src->Length);
Dst->Length = Src->Length;
}
/**
Cache all the received DHCPv6 offers, and set OfferIndex and OfferCount.
@param[in] Private The pointer to HTTP_BOOT_PRIVATE_DATA.
@param[in] RcvdOffer The pointer to the received offer packet.
**/
VOID
HttpBootCacheDhcp6Offer (
IN HTTP_BOOT_PRIVATE_DATA *Private,
IN EFI_DHCP6_PACKET *RcvdOffer
)
{
HTTP_BOOT_DHCP6_PACKET_CACHE *Cache6;
EFI_DHCP6_PACKET *Offer;
HTTP_BOOT_OFFER_TYPE OfferType;
Cache6 = &Private->OfferBuffer[Private->OfferNum].Dhcp6;
Offer = &Cache6->Packet.Offer;
//
// Cache the content of DHCPv6 packet firstly.
//
HttpBootCacheDhcp6Packet(Offer, RcvdOffer);
//
// Validate the DHCPv6 packet, and parse the options and offer type.
//
if (EFI_ERROR (HttpBootParseDhcp6Packet (Cache6))) {
return ;
}
//
// Determine whether cache the current offer by type, and record OfferIndex and OfferCount.
//
OfferType = Cache6->OfferType;
ASSERT (OfferType < HttpOfferTypeMax);
ASSERT (Private->OfferCount[OfferType] < HTTP_BOOT_OFFER_MAX_NUM);
Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;
Private->OfferCount[OfferType]++;
Private->OfferNum++;
}
/**
EFI_DHCP6_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol driver
to intercept events that occurred in the configuration process.
@param[in] This The pointer to the EFI DHCPv6 Protocol.
@param[in] Context The pointer to the context set by EFI_DHCP6_PROTOCOL.Configure().
@param[in] CurrentState The current operational state of the EFI DHCPv Protocol driver.
@param[in] Dhcp6Event The event that occurs in the current state, which usually means a
state transition.
@param[in] Packet The DHCPv6 packet that is going to be sent or was already received.
@param[out] NewPacket The packet that is used to replace the Packet above.
@retval EFI_SUCCESS Told the EFI DHCPv6 Protocol driver to continue the DHCP process.
@retval EFI_NOT_READY Only used in the Dhcp6Selecting state. The EFI DHCPv6 Protocol
driver will continue to wait for more packets.
@retval EFI_ABORTED Told the EFI DHCPv6 Protocol driver to abort the current process.
**/
EFI_STATUS
EFIAPI
HttpBootDhcp6CallBack (
IN EFI_DHCP6_PROTOCOL *This,
IN VOID *Context,
IN EFI_DHCP6_STATE CurrentState,
IN EFI_DHCP6_EVENT Dhcp6Event,
IN EFI_DHCP6_PACKET *Packet,
OUT EFI_DHCP6_PACKET **NewPacket OPTIONAL
)
{
HTTP_BOOT_PRIVATE_DATA *Private;
EFI_DHCP6_PACKET *SelectAd;
EFI_STATUS Status;
if ((Dhcp6Event != Dhcp6RcvdAdvertise) && (Dhcp6Event != Dhcp6SelectAdvertise)) {
return EFI_SUCCESS;
}
ASSERT (Packet != NULL);
Private = (HTTP_BOOT_PRIVATE_DATA *) Context;
Status = EFI_SUCCESS;
switch (Dhcp6Event) {
case Dhcp6RcvdAdvertise:
Status = EFI_NOT_READY;
if (Private->OfferNum < HTTP_BOOT_OFFER_MAX_NUM) {
//
// Cache the dhcp offers to OfferBuffer[] for select later, and record
// the OfferIndex and OfferCount.
//
HttpBootCacheDhcp6Offer (Private, Packet);
}
break;
case Dhcp6SelectAdvertise:
//
// Select offer by the default policy or by order, and record the SelectIndex
// and SelectProxyType.
//
HttpBootSelectDhcpOffer (Private);
if (Private->SelectIndex == 0) {
Status = EFI_ABORTED;
} else {
ASSERT (NewPacket != NULL);
SelectAd = &Private->OfferBuffer[Private->SelectIndex - 1].Dhcp6.Packet.Offer;
*NewPacket = AllocateZeroPool (SelectAd->Size);
ASSERT (*NewPacket != NULL);
CopyMem (*NewPacket, SelectAd, SelectAd->Size);
}
break;
default:
break;
}
return Status;
}
/**
Check whether IP driver could route the message which will be sent to ServerIp address.
This function will check the IP6 route table every 1 seconds until specified timeout is expired, if a valid
route is found in IP6 route table, the address will be filed in GatewayAddr and return.
@param[in] Private The pointer to HTTP_BOOT_PRIVATE_DATA.
@param[in] TimeOutInSecond Timeout value in seconds.
@param[out] GatewayAddr Pointer to store the gateway IP address.
@retval EFI_SUCCESS Found a valid gateway address successfully.
@retval EFI_TIMEOUT The operation is time out.
@retval Other Unexpect error happened.
**/
EFI_STATUS
HttpBootCheckRouteTable (
IN HTTP_BOOT_PRIVATE_DATA *Private,
IN UINTN TimeOutInSecond,
OUT EFI_IPv6_ADDRESS *GatewayAddr
)
{
EFI_STATUS Status;
EFI_IP6_PROTOCOL *Ip6;
EFI_IP6_MODE_DATA Ip6ModeData;
UINTN Index;
EFI_EVENT TimeOutEvt;
UINTN RetryCount;
BOOLEAN GatewayIsFound;
ASSERT (GatewayAddr != NULL);
ASSERT (Private != NULL);
Ip6 = Private->Ip6;
GatewayIsFound = FALSE;
RetryCount = 0;
TimeOutEvt = NULL;
Status = EFI_SUCCESS;
ZeroMem (GatewayAddr, sizeof (EFI_IPv6_ADDRESS));
while (TRUE) {
Status = Ip6->GetModeData (Ip6, &Ip6ModeData, NULL, NULL);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Find out the gateway address which can route the message which send to ServerIp.
//
for (Index = 0; Index < Ip6ModeData.RouteCount; Index++) {
if (NetIp6IsNetEqual (&Private->ServerIp.v6, &Ip6ModeData.RouteTable[Index].Destination, Ip6ModeData.RouteTable[Index].PrefixLength)) {
IP6_COPY_ADDRESS (GatewayAddr, &Ip6ModeData.RouteTable[Index].Gateway);
GatewayIsFound = TRUE;
break;
}
}
if (Ip6ModeData.AddressList != NULL) {
FreePool (Ip6ModeData.AddressList);
}
if (Ip6ModeData.GroupTable != NULL) {
FreePool (Ip6ModeData.GroupTable);
}
if (Ip6ModeData.RouteTable != NULL) {
FreePool (Ip6ModeData.RouteTable);
}
if (Ip6ModeData.NeighborCache != NULL) {
FreePool (Ip6ModeData.NeighborCache);
}
if (Ip6ModeData.PrefixTable != NULL) {
FreePool (Ip6ModeData.PrefixTable);
}
if (Ip6ModeData.IcmpTypeList != NULL) {
FreePool (Ip6ModeData.IcmpTypeList);
}
if (GatewayIsFound || RetryCount == TimeOutInSecond) {
break;
}
RetryCount++;
//
// Delay 1 second then recheck it again.
//
if (TimeOutEvt == NULL) {
Status = gBS->CreateEvent (
EVT_TIMER,
TPL_CALLBACK,
NULL,
NULL,
&TimeOutEvt
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
}
Status = gBS->SetTimer (TimeOutEvt, TimerRelative, TICKS_PER_SECOND);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
while (EFI_ERROR (gBS->CheckEvent (TimeOutEvt))) {
Ip6->Poll (Ip6);
}
}
ON_EXIT:
if (TimeOutEvt != NULL) {
gBS->CloseEvent (TimeOutEvt);
}
if (GatewayIsFound) {
Status = EFI_SUCCESS;
} else if (RetryCount == TimeOutInSecond) {
Status = EFI_TIMEOUT;
}
return Status;
}
/**
Set the IP6 policy to Automatic.
@param[in] Private The pointer to HTTP_BOOT_PRIVATE_DATA.
@retval EFI_SUCCESS Switch the IP policy succesfully.
@retval Others Unexpect error happened.
**/
EFI_STATUS
HttpBootSetIp6Policy (
IN HTTP_BOOT_PRIVATE_DATA *Private
)
{
EFI_IP6_CONFIG_POLICY Policy;
EFI_IP6_CONFIG_PROTOCOL *Ip6Config;
EFI_STATUS Status;
UINTN DataSize;
Ip6Config = Private->Ip6Config;
DataSize = sizeof (EFI_IP6_CONFIG_POLICY);
//
// Get and store the current policy of IP6 driver.
//
Status = Ip6Config->GetData (
Ip6Config,
Ip6ConfigDataTypePolicy,
&DataSize,
&Policy
);
if (EFI_ERROR (Status)) {
return Status;
}
if (Policy == Ip6ConfigPolicyManual) {
Policy = Ip6ConfigPolicyAutomatic;
Status = Ip6Config->SetData (
Ip6Config,
Ip6ConfigDataTypePolicy,
sizeof(EFI_IP6_CONFIG_POLICY),
&Policy
);
if (EFI_ERROR (Status)) {
return Status;
}
}
return EFI_SUCCESS;
}
/**
This function will register the default DNS addresses to the network device.
@param[in] Private The pointer to HTTP_BOOT_PRIVATE_DATA.
@param[in] DataLength Size of the buffer pointed to by DnsServerData in bytes.
@param[in] DnsServerData Point a list of DNS server address in an array
of EFI_IPv6_ADDRESS instances.
@retval EFI_SUCCESS The DNS configuration has been configured successfully.
@retval Others Failed to configure the address.
**/
EFI_STATUS
HttpBootSetIp6Dns (
IN HTTP_BOOT_PRIVATE_DATA *Private,
IN UINTN DataLength,
IN VOID *DnsServerData
)
{
EFI_IP6_CONFIG_PROTOCOL *Ip6Config;
ASSERT (Private->UsingIpv6);
Ip6Config = Private->Ip6Config;
return Ip6Config->SetData (
Ip6Config,
Ip6ConfigDataTypeDnsServer,
DataLength,
DnsServerData
);
}
/**
This function will register the IPv6 gateway address to the network device.
@param[in] Private The pointer to HTTP_BOOT_PRIVATE_DATA.
@retval EFI_SUCCESS The new IP configuration has been configured successfully.
@retval Others Failed to configure the address.
**/
EFI_STATUS
HttpBootSetIp6Gateway (
IN HTTP_BOOT_PRIVATE_DATA *Private
)
{
EFI_IP6_CONFIG_PROTOCOL *Ip6Config;
EFI_STATUS Status;
ASSERT (Private->UsingIpv6);
Ip6Config = Private->Ip6Config;
//
// Set the default gateway address.
//
if (!Private->NoGateway && !NetIp6IsUnspecifiedAddr (&Private->GatewayIp.v6)) {
Status = Ip6Config->SetData (
Ip6Config,
Ip6ConfigDataTypeGateway,
sizeof (EFI_IPv6_ADDRESS),
&Private->GatewayIp.v6
);
if (EFI_ERROR(Status)) {
return Status;
}
}
return EFI_SUCCESS;
}
/**
This function will register the station IP address.
@param[in] Private The pointer to HTTP_BOOT_PRIVATE_DATA.
@retval EFI_SUCCESS The new IP address has been configured successfully.
@retval Others Failed to configure the address.
**/
EFI_STATUS
HttpBootSetIp6Address (
IN HTTP_BOOT_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
EFI_IP6_PROTOCOL *Ip6;
EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;
EFI_IP6_CONFIG_POLICY Policy;
EFI_IP6_CONFIG_MANUAL_ADDRESS CfgAddr;
EFI_IPv6_ADDRESS *Ip6Addr;
EFI_IPv6_ADDRESS GatewayAddr;
EFI_IP6_CONFIG_DATA Ip6CfgData;
EFI_EVENT MappedEvt;
UINTN DataSize;
BOOLEAN IsAddressOk;
UINTN Index;
ASSERT (Private->UsingIpv6);
MappedEvt = NULL;
IsAddressOk = FALSE;
Ip6Addr = NULL;
Ip6Cfg = Private->Ip6Config;
Ip6 = Private->Ip6;
ZeroMem (&CfgAddr, sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));
CopyMem (&CfgAddr, &Private->StationIp.v6, sizeof (EFI_IPv6_ADDRESS));
ZeroMem (&Ip6CfgData, sizeof (EFI_IP6_CONFIG_DATA));
Ip6CfgData.AcceptIcmpErrors = TRUE;
Ip6CfgData.DefaultProtocol = IP6_ICMP;
Ip6CfgData.HopLimit = HTTP_BOOT_DEFAULT_HOPLIMIT;
Ip6CfgData.ReceiveTimeout = HTTP_BOOT_DEFAULT_LIFETIME;
Ip6CfgData.TransmitTimeout = HTTP_BOOT_DEFAULT_LIFETIME;
Status = Ip6->Configure (Ip6, &Ip6CfgData);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Retrieve the gateway address from IP6 route table.
//
Status = HttpBootCheckRouteTable (Private, HTTP_BOOT_IP6_ROUTE_TABLE_TIMEOUT, &GatewayAddr);
if (EFI_ERROR (Status)) {
Private->NoGateway = TRUE;
} else {
IP6_COPY_ADDRESS (&Private->GatewayIp.v6, &GatewayAddr);
}
//
// Set the new address by Ip6ConfigProtocol manually.
//
Policy = Ip6ConfigPolicyManual;
Status = Ip6Cfg->SetData (
Ip6Cfg,
Ip6ConfigDataTypePolicy,
sizeof(EFI_IP6_CONFIG_POLICY),
&Policy
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Create a notify event to set address flag when DAD if IP6 driver succeeded.
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
HttpBootCommonNotify,
&IsAddressOk,
&MappedEvt
);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Set static host ip6 address. This is a asynchronous process.
//
Status = Ip6Cfg->RegisterDataNotify (
Ip6Cfg,
Ip6ConfigDataTypeManualAddress,
MappedEvt
);
if (EFI_ERROR(Status)) {
goto ON_EXIT;
}
Status = Ip6Cfg->SetData (
Ip6Cfg,
Ip6ConfigDataTypeManualAddress,
sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS),
&CfgAddr
);
if (EFI_ERROR (Status) && Status != EFI_NOT_READY) {
goto ON_EXIT;
} else if (Status == EFI_NOT_READY) {
//
// Poll the network until the asynchronous process is finished.
//
while (!IsAddressOk) {
Ip6->Poll (Ip6);
}
//
// Check whether the Ip6 Address setting is successed.
//
DataSize = 0;
Status = Ip6Cfg->GetData (
Ip6Cfg,
Ip6ConfigDataTypeManualAddress,
&DataSize,
NULL
);
if (Status != EFI_BUFFER_TOO_SMALL || DataSize == 0) {
Status = EFI_DEVICE_ERROR;
goto ON_EXIT;
}
Ip6Addr = AllocatePool (DataSize);
if (Ip6Addr == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Status = Ip6Cfg->GetData (
Ip6Cfg,
Ip6ConfigDataTypeManualAddress,
&DataSize,
(VOID *) Ip6Addr
);
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto ON_EXIT;
}
for (Index = 0; Index < DataSize / sizeof (EFI_IPv6_ADDRESS); Index ++) {
if (CompareMem (Ip6Addr + Index, &CfgAddr, sizeof (EFI_IPv6_ADDRESS)) == 0) {
break;
}
}
if (Index == DataSize / sizeof (EFI_IPv6_ADDRESS)) {
Status = EFI_ABORTED;
goto ON_EXIT;
}
}
ON_EXIT:
if (MappedEvt != NULL) {
Ip6Cfg->UnregisterDataNotify (
Ip6Cfg,
Ip6ConfigDataTypeManualAddress,
MappedEvt
);
gBS->CloseEvent (MappedEvt);
}
if (Ip6Addr != NULL) {
FreePool (Ip6Addr);
}
return Status;
}
/**
Start the S.A.R.R DHCPv6 process to acquire the IPv6 address and other Http boot information.
@param[in] Private Pointer to HTTP_BOOT private data.
@retval EFI_SUCCESS The S.A.R.R process successfully finished.
@retval Others Failed to finish the S.A.R.R process.
**/
EFI_STATUS
HttpBootDhcp6Sarr (
IN HTTP_BOOT_PRIVATE_DATA *Private
)
{
EFI_DHCP6_PROTOCOL *Dhcp6;
EFI_DHCP6_CONFIG_DATA Config;
EFI_DHCP6_MODE_DATA Mode;
EFI_DHCP6_RETRANSMISSION *Retransmit;
EFI_DHCP6_PACKET_OPTION *OptList[HTTP_BOOT_DHCP6_OPTION_MAX_NUM];
UINT32 OptCount;
UINT8 Buffer[HTTP_BOOT_DHCP6_OPTION_MAX_SIZE];
EFI_STATUS Status;
Dhcp6 = Private->Dhcp6;
ASSERT (Dhcp6 != NULL);
//
// Build options list for the request packet.
//
OptCount = HttpBootBuildDhcp6Options (Private, OptList, Buffer);
ASSERT (OptCount >0);
Retransmit = AllocateZeroPool (sizeof (EFI_DHCP6_RETRANSMISSION));
if (Retransmit == NULL) {
return EFI_OUT_OF_RESOURCES;
}
ZeroMem (&Mode, sizeof (EFI_DHCP6_MODE_DATA));
ZeroMem (&Config, sizeof (EFI_DHCP6_CONFIG_DATA));
Config.OptionCount = OptCount;
Config.OptionList = OptList;
Config.Dhcp6Callback = HttpBootDhcp6CallBack;
Config.CallbackContext = Private;
Config.IaInfoEvent = NULL;
Config.RapidCommit = FALSE;
Config.ReconfigureAccept = FALSE;
Config.IaDescriptor.IaId = NET_RANDOM (NetRandomInitSeed ());
Config.IaDescriptor.Type = EFI_DHCP6_IA_TYPE_NA;
Config.SolicitRetransmission = Retransmit;
Retransmit->Irt = 4;
Retransmit->Mrc = 4;
Retransmit->Mrt = 32;
Retransmit->Mrd = 60;
//
// Configure the DHCPv6 instance for HTTP boot.
//
Status = Dhcp6->Configure (Dhcp6, &Config);
FreePool (Retransmit);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Initialize the record fields for DHCPv6 offer in private data.
//
Private->OfferNum = 0;
Private->SelectIndex = 0;
ZeroMem (Private->OfferCount, sizeof (Private->OfferCount));
ZeroMem (Private->OfferIndex, sizeof (Private->OfferIndex));
//
// Start DHCPv6 S.A.R.R. process to acquire IPv6 address.
//
Status = Dhcp6->Start (Dhcp6);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
//
// Get the acquired IPv6 address and store them.
//
Status = Dhcp6->GetModeData (Dhcp6, &Mode, NULL);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
}
ASSERT (Mode.Ia->State == Dhcp6Bound);
CopyMem (&Private->StationIp.v6, &Mode.Ia->IaAddress[0].IpAddress, sizeof (EFI_IPv6_ADDRESS));
AsciiPrint ("\n Station IPv6 address is ");
HttpBootShowIp6Addr (&Private->StationIp.v6);
AsciiPrint ("\n");
ON_EXIT:
if (EFI_ERROR (Status)) {
Dhcp6->Stop (Dhcp6);
Dhcp6->Configure (Dhcp6, NULL);
} else {
ZeroMem (&Config, sizeof (EFI_DHCP6_CONFIG_DATA));
Dhcp6->Configure (Dhcp6, &Config);
if (Mode.ClientId != NULL) {
FreePool (Mode.ClientId);
}
if (Mode.Ia != NULL) {
FreePool (Mode.Ia);
}
}
return Status;
}
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