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CloverBootloader/NetworkPkg/HttpBootDxe/HttpBootDhcp6.c

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/** @file
Functions implementation related with DHCPv6 for HTTP boot driver.
Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#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 (DHCP6_OPT_ORO);
OptList[Index]->OpLen = HTONS (8);
OptEnt.Oro = (HTTP_BOOT_DHCP6_OPTION_ORO *)OptList[Index]->Data;
OptEnt.Oro->OpCode[0] = HTONS (DHCP6_OPT_BOOT_FILE_URL);
OptEnt.Oro->OpCode[1] = HTONS (DHCP6_OPT_BOOT_FILE_PARAM);
OptEnt.Oro->OpCode[2] = HTONS (DHCP6_OPT_DNS_SERVERS);
OptEnt.Oro->OpCode[3] = HTONS (DHCP6_OPT_VENDOR_CLASS);
Index++;
OptList[Index] = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);
//
// Append client network device interface option
//
OptList[Index]->OpCode = HTONS (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 (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 (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 position 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) == DHCP6_OPT_IA_NA) {
Options[HTTP_BOOT_DHCP6_IDX_IA_NA] = Option;
} else if (NTOHS (Option->OpCode) == 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) == DHCP6_OPT_BOOT_FILE_PARAM) {
Options[HTTP_BOOT_DHCP6_IDX_BOOT_FILE_PARAM] = Option;
} else if (NTOHS (Option->OpCode) == DHCP6_OPT_VENDOR_CLASS) {
Options[HTTP_BOOT_DHCP6_IDX_VENDOR_CLASS] = Option;
} else if (NTOHS (Option->OpCode) == 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, embedded 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),
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) >= 16) &&
(CompareMem ((Option->Data + 6), 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) {
if (IsProxyOffer) {
OfferType = HttpOfferTypeProxyIpUri;
} else {
OfferType = IsDnsOffer ? HttpOfferTypeDhcpIpUriDns : 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.
@retval EFI_SUCCESS Packet is copied.
@retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.
**/
EFI_STATUS
HttpBootCacheDhcp6Packet (
IN EFI_DHCP6_PACKET *Dst,
IN EFI_DHCP6_PACKET *Src
)
{
if (Dst->Size < Src->Length) {
return EFI_BUFFER_TOO_SMALL;
}
CopyMem (&Dst->Dhcp6, &Src->Dhcp6, Src->Length);
Dst->Length = Src->Length;
return EFI_SUCCESS;
}
/**
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.
@retval EFI_SUCCESS Cache and parse the packet successfully.
@retval Others Operation failed.
**/
EFI_STATUS
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;
EFI_STATUS Status;
Cache6 = &Private->OfferBuffer[Private->OfferNum].Dhcp6;
Offer = &Cache6->Packet.Offer;
//
// Cache the content of DHCPv6 packet firstly.
//
Status = HttpBootCacheDhcp6Packet (Offer, RcvdOffer);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Validate the DHCPv6 packet, and parse the options and offer type.
//
if (EFI_ERROR (HttpBootParseDhcp6Packet (Cache6))) {
return EFI_ABORTED;
}
//
// 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++;
return EFI_SUCCESS;
}
/**
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.
@retval EFI_OUT_OF_RESOURCES There are not enough resources.
**/
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;
BOOLEAN Received;
if ((Dhcp6Event != Dhcp6SendSolicit) &&
(Dhcp6Event != Dhcp6RcvdAdvertise) &&
(Dhcp6Event != Dhcp6SendRequest) &&
(Dhcp6Event != Dhcp6RcvdReply) &&
(Dhcp6Event != Dhcp6SelectAdvertise))
{
return EFI_SUCCESS;
}
ASSERT (Packet != NULL);
Private = (HTTP_BOOT_PRIVATE_DATA *)Context;
Status = EFI_SUCCESS;
if ((Private->HttpBootCallback != NULL) && (Dhcp6Event != Dhcp6SelectAdvertise)) {
Received = (BOOLEAN)(Dhcp6Event == Dhcp6RcvdAdvertise || Dhcp6Event == Dhcp6RcvdReply);
Status = Private->HttpBootCallback->Callback (
Private->HttpBootCallback,
HttpBootDhcp6,
Received,
Packet->Length,
&Packet->Dhcp6
);
if (EFI_ERROR (Status)) {
return EFI_ABORTED;
}
}
switch (Dhcp6Event) {
case Dhcp6RcvdAdvertise:
Status = EFI_NOT_READY;
if (Packet->Length > HTTP_BOOT_DHCP6_PACKET_MAX_SIZE) {
//
// Ignore the incoming packets which exceed the maximum length.
//
break;
}
if (Private->OfferNum < HTTP_BOOT_OFFER_MAX_NUM) {
//
// Cache the dhcp offers to OfferBuffer[] for select later, and record
// the OfferIndex and OfferCount.
// If error happens, just ignore this packet and continue to wait more offer.
//
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);
if (*NewPacket == NULL) {
return EFI_OUT_OF_RESOURCES;
}
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 Unexpected 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 successfully.
@retval Others Unexpected 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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