This patch updates the HTTP Boot driver to install a default HTTP Callback protocol if the platform doesn't provide one. This callback implementation will print the boot file download progress in percentage format. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Fu Siyuan <siyuan.fu@intel.com> Reviewed-by: Ye Ting <ting.ye@intel.com> Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>
		
			
				
	
	
		
			1039 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1039 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/** @file
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						|
  Functions implementation related with DHCPv6 for HTTP boot driver.
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Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under 
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the terms and conditions of the BSD License that accompanies this distribution.  
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.                                          
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "HttpBootDxe.h"
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/**
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						|
  Build the options buffer for the DHCPv6 request packet.
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  @param[in]  Private             The pointer to HTTP BOOT driver private data.
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  @param[out] OptList             The pointer to the option pointer array.
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  @param[in]  Buffer              The pointer to the buffer to contain the option list.
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  @return     Index               The count of the built-in options.
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**/
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UINT32
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						|
HttpBootBuildDhcp6Options (
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						|
  IN  HTTP_BOOT_PRIVATE_DATA       *Private,
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						|
  OUT EFI_DHCP6_PACKET_OPTION      **OptList,
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						|
  IN  UINT8                        *Buffer
 | 
						|
  )
 | 
						|
{
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						|
  HTTP_BOOT_DHCP6_OPTION_ENTRY     OptEnt;
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  UINT16                           Value;
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  UINT32                           Index;
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  Index      = 0;
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						|
  OptList[0] = (EFI_DHCP6_PACKET_OPTION *) Buffer;
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  //
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  // Append client option request option
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  //
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						|
  OptList[Index]->OpCode     = HTONS (DHCP6_OPT_ORO);
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						|
  OptList[Index]->OpLen      = HTONS (8);
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						|
  OptEnt.Oro                 = (HTTP_BOOT_DHCP6_OPTION_ORO *) OptList[Index]->Data;
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  OptEnt.Oro->OpCode[0]      = HTONS(DHCP6_OPT_BOOT_FILE_URL);
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						|
  OptEnt.Oro->OpCode[1]      = HTONS(DHCP6_OPT_BOOT_FILE_PARAM);
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  OptEnt.Oro->OpCode[2]      = HTONS(DHCP6_OPT_DNS_SERVERS);
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  OptEnt.Oro->OpCode[3]      = HTONS(DHCP6_OPT_VENDOR_CLASS);
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  Index++;
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  OptList[Index]             = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);
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						|
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						|
  //
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						|
  // Append client network device interface option
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						|
  //
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						|
  OptList[Index]->OpCode     = HTONS (DHCP6_OPT_UNDI);
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  OptList[Index]->OpLen      = HTONS ((UINT16)3);
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  OptEnt.Undi                = (HTTP_BOOT_DHCP6_OPTION_UNDI *) OptList[Index]->Data;
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  if (Private->Nii != NULL) {
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    OptEnt.Undi->Type        = Private->Nii->Type;
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    OptEnt.Undi->MajorVer    = Private->Nii->MajorVer;
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    OptEnt.Undi->MinorVer    = Private->Nii->MinorVer;
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  } else {
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    OptEnt.Undi->Type        = DEFAULT_UNDI_TYPE;
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    OptEnt.Undi->MajorVer    = DEFAULT_UNDI_MAJOR;
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    OptEnt.Undi->MinorVer    = DEFAULT_UNDI_MINOR;
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  }
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  Index++;
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  OptList[Index]             = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);
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  //
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  // Append client system architecture option
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						|
  //
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  OptList[Index]->OpCode     = HTONS (DHCP6_OPT_ARCH);
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						|
  OptList[Index]->OpLen      = HTONS ((UINT16) sizeof (HTTP_BOOT_DHCP6_OPTION_ARCH));
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  OptEnt.Arch                = (HTTP_BOOT_DHCP6_OPTION_ARCH *) OptList[Index]->Data;
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						|
  Value                      = HTONS (EFI_HTTP_BOOT_CLIENT_SYSTEM_ARCHITECTURE);
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  CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));
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  Index++;
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  OptList[Index]             = GET_NEXT_DHCP6_OPTION (OptList[Index - 1]);
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  //
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  // Append vendor class identify option.
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  //
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  OptList[Index]->OpCode       = HTONS (DHCP6_OPT_VENDOR_CLASS);
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  OptList[Index]->OpLen        = HTONS ((UINT16) sizeof (HTTP_BOOT_DHCP6_OPTION_VENDOR_CLASS));
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  OptEnt.VendorClass           = (HTTP_BOOT_DHCP6_OPTION_VENDOR_CLASS *) OptList[Index]->Data;
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  OptEnt.VendorClass->Vendor   = HTONL (HTTP_BOOT_DHCP6_ENTERPRISE_NUM);
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  OptEnt.VendorClass->ClassLen = HTONS ((UINT16) sizeof (HTTP_BOOT_CLASS_ID));
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  CopyMem (
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    &OptEnt.VendorClass->ClassId,
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    DEFAULT_CLASS_ID_DATA,
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    sizeof (HTTP_BOOT_CLASS_ID)
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						|
    );
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  HttpBootUintnToAscDecWithFormat (
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    EFI_HTTP_BOOT_CLIENT_SYSTEM_ARCHITECTURE,
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    OptEnt.VendorClass->ClassId.ArchitectureType,
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    sizeof (OptEnt.VendorClass->ClassId.ArchitectureType)
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    );
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  if (Private->Nii != NULL) {
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    CopyMem (
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      OptEnt.VendorClass->ClassId.InterfaceName,
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      Private->Nii->StringId,
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      sizeof (OptEnt.VendorClass->ClassId.InterfaceName)
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      );
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    HttpBootUintnToAscDecWithFormat (
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      Private->Nii->MajorVer,
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      OptEnt.VendorClass->ClassId.UndiMajor,
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      sizeof (OptEnt.VendorClass->ClassId.UndiMajor)
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      );
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    HttpBootUintnToAscDecWithFormat (
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      Private->Nii->MinorVer,
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      OptEnt.VendorClass->ClassId.UndiMinor,
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      sizeof (OptEnt.VendorClass->ClassId.UndiMinor)
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      );
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  }
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  Index++;
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  return Index;
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}
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/**
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  Parse out a DHCPv6 option by OptTag, and find the position in buffer.
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  @param[in]  Buffer        The pointer to the option buffer.
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  @param[in]  Length        Length of the option buffer.
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  @param[in]  OptTag        The required option tag.
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  @retval     NULL          Failed to parse the required option.
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  @retval     Others        The postion of the required option in buffer.
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**/
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EFI_DHCP6_PACKET_OPTION *
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HttpBootParseDhcp6Options (
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  IN UINT8                       *Buffer,
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  IN UINT32                      Length,
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  IN UINT16                      OptTag
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  )
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{
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						|
  EFI_DHCP6_PACKET_OPTION        *Option;
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  UINT32                         Offset;
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						|
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  Option  = (EFI_DHCP6_PACKET_OPTION *) Buffer;
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  Offset  = 0;
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  //
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  // OpLen and OpCode here are both stored in network order.
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  //
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						|
  while (Offset < Length) {
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    if (NTOHS (Option->OpCode) == OptTag) {
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      return Option;
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    }
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    Offset += (NTOHS(Option->OpLen) + 4);
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    Option  = (EFI_DHCP6_PACKET_OPTION *) (Buffer + Offset);
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  }
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  return NULL;
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}
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/**
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  Parse the cached DHCPv6 packet, including all the options.
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  @param[in]  Cache6           The pointer to a cached DHCPv6 packet.
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  @retval     EFI_SUCCESS      Parsed the DHCPv6 packet successfully.
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						|
  @retval     EFI_DEVICE_ERROR Failed to parse and invalid the packet.
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						|
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						|
**/
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						|
EFI_STATUS
 | 
						|
HttpBootParseDhcp6Packet (
 | 
						|
  IN  HTTP_BOOT_DHCP6_PACKET_CACHE    *Cache6
 | 
						|
  )
 | 
						|
{
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						|
  EFI_DHCP6_PACKET               *Offer;
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  EFI_DHCP6_PACKET_OPTION        **Options;
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  EFI_DHCP6_PACKET_OPTION        *Option;
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  HTTP_BOOT_OFFER_TYPE           OfferType;
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  EFI_IPv6_ADDRESS               IpAddr;
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						|
  BOOLEAN                        IsProxyOffer;
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						|
  BOOLEAN                        IsHttpOffer;
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						|
  BOOLEAN                        IsDnsOffer;
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						|
  BOOLEAN                        IpExpressedUri;
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						|
  EFI_STATUS                     Status;
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						|
  UINT32                         Offset;
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						|
  UINT32                         Length;
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						|
  
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						|
  IsDnsOffer     = FALSE;
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						|
  IpExpressedUri = FALSE;
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  IsProxyOffer   = TRUE;
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  IsHttpOffer    = FALSE;
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  Offer        = &Cache6->Packet.Offer;
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						|
  Options      = Cache6->OptList;
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						|
  ZeroMem (Cache6->OptList, sizeof (Cache6->OptList));
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						|
  Option  = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option);
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  Offset  = 0;
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						|
  Length  = GET_DHCP6_OPTION_SIZE (Offer);
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						|
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						|
  //
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						|
  // OpLen and OpCode here are both stored in network order, since they are from original packet.
 | 
						|
  //
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						|
  while (Offset < Length) {
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						|
    if (NTOHS (Option->OpCode) == DHCP6_OPT_IA_NA) {
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						|
      Options[HTTP_BOOT_DHCP6_IDX_IA_NA] = Option;
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						|
    } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_URL) {
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						|
      //
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						|
      // The server sends this option to inform the client about an URL to a boot file.
 | 
						|
      //
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						|
      Options[HTTP_BOOT_DHCP6_IDX_BOOT_FILE_URL] = Option;
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						|
    } else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_PARAM) {
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      Options[HTTP_BOOT_DHCP6_IDX_BOOT_FILE_PARAM] = Option;
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    } else if (NTOHS (Option->OpCode) == DHCP6_OPT_VENDOR_CLASS) {
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      Options[HTTP_BOOT_DHCP6_IDX_VENDOR_CLASS] = Option;
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    } else if (NTOHS (Option->OpCode) == DHCP6_OPT_DNS_SERVERS) {
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      Options[HTTP_BOOT_DHCP6_IDX_DNS_SERVER] = Option;
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    }
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    Offset += (NTOHS (Option->OpLen) + 4);
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    Option  = (EFI_DHCP6_PACKET_OPTION *) (Offer->Dhcp6.Option + Offset);
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  }
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  //
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						|
  // The offer with assigned client address is NOT a proxy offer.
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  // An ia_na option, embeded with valid ia_addr option and a status_code of success.
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						|
  //
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						|
  Option = Options[HTTP_BOOT_DHCP6_IDX_IA_NA];
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						|
  if (Option != NULL) {
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    Option = HttpBootParseDhcp6Options (
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						|
               Option->Data + 12,
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               NTOHS (Option->OpLen),
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               DHCP6_OPT_STATUS_CODE
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						|
               );
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						|
    if ((Option != NULL && Option->Data[0] == 0) || (Option == NULL)) {
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						|
      IsProxyOffer = FALSE;
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						|
    }
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						|
  }
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						|
  //
 | 
						|
  // 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) {
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						|
      IsHttpOffer = TRUE;
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						|
  }
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						|
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						|
  //
 | 
						|
  // 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               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; 
 | 
						|
    
 | 
						|
}
 | 
						|
 |