mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-10 14:23:31 +01:00
2394 lines
70 KiB
C
2394 lines
70 KiB
C
/** @file
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Functions implementation related with DHCPv6 for UefiPxeBc Driver.
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(C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>
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Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "PxeBcImpl.h"
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//
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// Well-known multi-cast address defined in section-24.1 of rfc-3315
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//
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// ALL_DHCP_Relay_Agents_and_Servers address: FF02::1:2
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//
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EFI_IPv6_ADDRESS mAllDhcpRelayAndServersAddress = {
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{ 0xFF, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2 }
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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 position of the required option in buffer.
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**/
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EFI_DHCP6_PACKET_OPTION *
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PxeBcParseDhcp6Options (
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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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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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Build the options buffer for the DHCPv6 request packet.
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@param[in] Private The pointer to PxeBc 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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PxeBcBuildDhcp6Options (
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IN PXEBC_PRIVATE_DATA *Private,
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OUT EFI_DHCP6_PACKET_OPTION **OptList,
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IN UINT8 *Buffer
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)
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{
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PXEBC_DHCP6_OPTION_ENTRY OptEnt;
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UINT32 Index;
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UINT16 Value;
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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 = (PXEBC_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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// 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 = (PXEBC_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 (PXEBC_DHCP6_OPTION_ARCH));
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OptEnt.Arch = (PXEBC_DHCP6_OPTION_ARCH *)OptList[Index]->Data;
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Value = HTONS (EFI_PXE_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 option to store the PXE class identifier.
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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 (PXEBC_DHCP6_OPTION_VENDOR_CLASS));
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OptEnt.VendorClass = (PXEBC_DHCP6_OPTION_VENDOR_CLASS *)OptList[Index]->Data;
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OptEnt.VendorClass->Vendor = HTONL (PXEBC_DHCP6_ENTERPRISE_NUM);
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OptEnt.VendorClass->ClassLen = HTONS ((UINT16)sizeof (PXEBC_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 (PXEBC_CLASS_ID)
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);
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PxeBcUintnToAscDecWithFormat (
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EFI_PXE_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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PxeBcUintnToAscDecWithFormat (
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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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PxeBcUintnToAscDecWithFormat (
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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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Cache the DHCPv6 packet.
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@param[in] Dst The pointer to the cache buffer for DHCPv6 packet.
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@param[in] Src The pointer to the DHCPv6 packet to be cached.
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@retval EFI_SUCCESS Packet is copied.
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@retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.
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**/
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EFI_STATUS
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PxeBcCacheDhcp6Packet (
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IN EFI_DHCP6_PACKET *Dst,
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IN EFI_DHCP6_PACKET *Src
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)
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{
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if (Dst->Size < Src->Length) {
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return EFI_BUFFER_TOO_SMALL;
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}
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CopyMem (&Dst->Dhcp6, &Src->Dhcp6, Src->Length);
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Dst->Length = Src->Length;
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return EFI_SUCCESS;
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}
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/**
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Retrieve the boot server address using the EFI_DNS6_PROTOCOL.
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@param[in] Private Pointer to PxeBc private data.
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@param[in] HostName Pointer to buffer containing hostname.
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@param[out] IpAddress On output, pointer to buffer containing IPv6 address.
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@retval EFI_SUCCESS Operation succeeded.
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@retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.
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@retval EFI_DEVICE_ERROR An unexpected network error occurred.
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@retval Others Other errors as indicated.
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**/
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EFI_STATUS
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PxeBcDns6 (
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IN PXEBC_PRIVATE_DATA *Private,
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IN CHAR16 *HostName,
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OUT EFI_IPv6_ADDRESS *IpAddress
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)
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{
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EFI_STATUS Status;
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EFI_DNS6_PROTOCOL *Dns6;
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EFI_DNS6_CONFIG_DATA Dns6ConfigData;
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EFI_DNS6_COMPLETION_TOKEN Token;
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EFI_HANDLE Dns6Handle;
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EFI_IPv6_ADDRESS *DnsServerList;
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BOOLEAN IsDone;
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Dns6 = NULL;
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Dns6Handle = NULL;
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DnsServerList = Private->DnsServer;
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ZeroMem (&Token, sizeof (EFI_DNS6_COMPLETION_TOKEN));
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//
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// Create a DNSv6 child instance and get the protocol.
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//
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Status = NetLibCreateServiceChild (
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Private->Controller,
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Private->Image,
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&gEfiDns6ServiceBindingProtocolGuid,
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&Dns6Handle
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);
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if (EFI_ERROR (Status)) {
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goto Exit;
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}
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Status = gBS->OpenProtocol (
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Dns6Handle,
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&gEfiDns6ProtocolGuid,
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(VOID **)&Dns6,
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Private->Image,
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Private->Controller,
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EFI_OPEN_PROTOCOL_BY_DRIVER
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);
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if (EFI_ERROR (Status)) {
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goto Exit;
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}
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//
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// Configure DNS6 instance for the DNS server address and protocol.
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//
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ZeroMem (&Dns6ConfigData, sizeof (EFI_DNS6_CONFIG_DATA));
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Dns6ConfigData.DnsServerCount = 1;
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Dns6ConfigData.DnsServerList = DnsServerList;
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Dns6ConfigData.EnableDnsCache = TRUE;
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Dns6ConfigData.Protocol = EFI_IP_PROTO_UDP;
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IP6_COPY_ADDRESS (&Dns6ConfigData.StationIp, &Private->TmpStationIp.v6);
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Status = Dns6->Configure (
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Dns6,
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&Dns6ConfigData
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);
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if (EFI_ERROR (Status)) {
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goto Exit;
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}
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Token.Status = EFI_NOT_READY;
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IsDone = FALSE;
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//
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// Create event to set the IsDone flag when name resolution is finished.
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//
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Status = gBS->CreateEvent (
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EVT_NOTIFY_SIGNAL,
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TPL_NOTIFY,
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PxeBcCommonNotify,
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&IsDone,
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&Token.Event
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);
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if (EFI_ERROR (Status)) {
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goto Exit;
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}
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//
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// Start asynchronous name resolution.
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//
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Status = Dns6->HostNameToIp (Dns6, HostName, &Token);
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if (EFI_ERROR (Status)) {
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goto Exit;
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}
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while (!IsDone) {
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Dns6->Poll (Dns6);
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}
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//
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// Name resolution is done, check result.
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//
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Status = Token.Status;
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if (!EFI_ERROR (Status)) {
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if (Token.RspData.H2AData == NULL) {
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Status = EFI_DEVICE_ERROR;
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goto Exit;
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}
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if ((Token.RspData.H2AData->IpCount == 0) || (Token.RspData.H2AData->IpList == NULL)) {
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Status = EFI_DEVICE_ERROR;
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goto Exit;
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}
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//
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// We just return the first IPv6 address from DNS protocol.
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//
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IP6_COPY_ADDRESS (IpAddress, Token.RspData.H2AData->IpList);
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Status = EFI_SUCCESS;
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}
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Exit:
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FreePool (HostName);
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if (Token.Event != NULL) {
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gBS->CloseEvent (Token.Event);
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}
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if (Token.RspData.H2AData != NULL) {
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if (Token.RspData.H2AData->IpList != NULL) {
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FreePool (Token.RspData.H2AData->IpList);
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}
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FreePool (Token.RspData.H2AData);
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}
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if (Dns6 != NULL) {
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Dns6->Configure (Dns6, NULL);
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gBS->CloseProtocol (
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Dns6Handle,
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&gEfiDns6ProtocolGuid,
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Private->Image,
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Private->Controller
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);
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}
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if (Dns6Handle != NULL) {
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NetLibDestroyServiceChild (
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Private->Controller,
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Private->Image,
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&gEfiDns6ServiceBindingProtocolGuid,
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Dns6Handle
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);
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}
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if (DnsServerList != NULL) {
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FreePool (DnsServerList);
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}
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return Status;
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}
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/**
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Parse the Boot File URL option.
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@param[in] Private Pointer to PxeBc private data.
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@param[out] FileName The pointer to the boot file name.
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@param[in, out] SrvAddr The pointer to the boot server address.
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@param[in] BootFile The pointer to the boot file URL option data.
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@param[in] Length The length of the boot file URL option data.
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@retval EFI_ABORTED User cancel operation.
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@retval EFI_SUCCESS Selected the boot menu successfully.
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@retval EFI_NOT_READY Read the input key from the keyboard has not finish.
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**/
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EFI_STATUS
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PxeBcExtractBootFileUrl (
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IN PXEBC_PRIVATE_DATA *Private,
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OUT UINT8 **FileName,
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IN OUT EFI_IPv6_ADDRESS *SrvAddr,
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IN CHAR8 *BootFile,
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IN UINT16 Length
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)
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{
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UINT16 PrefixLen;
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CHAR8 *BootFileNamePtr;
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CHAR8 *BootFileName;
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UINT16 BootFileNameLen;
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CHAR8 *TmpStr;
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CHAR8 TmpChar;
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CHAR8 *ServerAddressOption;
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CHAR8 *ServerAddress;
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CHAR8 *ModeStr;
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CHAR16 *HostName;
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BOOLEAN IpExpressedUrl;
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UINTN Len;
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EFI_STATUS Status;
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|
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IpExpressedUrl = TRUE;
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//
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// The format of the Boot File URL option is:
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//
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// 0 1 2 3
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// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// | OPT_BOOTFILE_URL | option-len |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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// | |
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// . bootfile-url (variable length) .
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// | |
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// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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//
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|
|
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//
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// Based upon RFC 5970 and UEFI 2.6, bootfile-url format can be
|
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// tftp://[SERVER_ADDRESS]/BOOTFILE_NAME or tftp://domain_name/BOOTFILE_NAME
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// As an example where the BOOTFILE_NAME is the EFI loader and
|
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// SERVER_ADDRESS is the ASCII encoding of an IPV6 address.
|
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//
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PrefixLen = (UINT16)AsciiStrLen (PXEBC_DHCP6_BOOT_FILE_URL_PREFIX);
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|
|
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if ((Length <= PrefixLen) ||
|
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(CompareMem (BootFile, PXEBC_DHCP6_BOOT_FILE_URL_PREFIX, PrefixLen) != 0))
|
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{
|
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return EFI_NOT_FOUND;
|
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}
|
|
|
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BootFile = BootFile + PrefixLen;
|
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Length = (UINT16)(Length - PrefixLen);
|
|
|
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TmpStr = (CHAR8 *)AllocateZeroPool (Length + 1);
|
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if (TmpStr == NULL) {
|
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return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
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CopyMem (TmpStr, BootFile, Length);
|
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TmpStr[Length] = '\0';
|
|
|
|
//
|
|
// Get the part of SERVER_ADDRESS string.
|
|
//
|
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ServerAddressOption = TmpStr;
|
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if (*ServerAddressOption == PXEBC_ADDR_START_DELIMITER) {
|
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ServerAddressOption++;
|
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ServerAddress = ServerAddressOption;
|
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while (*ServerAddress != '\0' && *ServerAddress != PXEBC_ADDR_END_DELIMITER) {
|
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ServerAddress++;
|
|
}
|
|
|
|
if (*ServerAddress != PXEBC_ADDR_END_DELIMITER) {
|
|
FreePool (TmpStr);
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
*ServerAddress = '\0';
|
|
|
|
//
|
|
// Convert the string of server address to Ipv6 address format and store it.
|
|
//
|
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Status = NetLibAsciiStrToIp6 (ServerAddressOption, SrvAddr);
|
|
if (EFI_ERROR (Status)) {
|
|
FreePool (TmpStr);
|
|
return Status;
|
|
}
|
|
} else {
|
|
IpExpressedUrl = FALSE;
|
|
ServerAddress = ServerAddressOption;
|
|
while (*ServerAddress != '\0' && *ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {
|
|
ServerAddress++;
|
|
}
|
|
|
|
if (*ServerAddress != PXEBC_TFTP_URL_SEPARATOR) {
|
|
FreePool (TmpStr);
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
*ServerAddress = '\0';
|
|
|
|
Len = AsciiStrSize (ServerAddressOption);
|
|
HostName = AllocateZeroPool (Len * sizeof (CHAR16));
|
|
if (HostName == NULL) {
|
|
FreePool (TmpStr);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
AsciiStrToUnicodeStrS (
|
|
ServerAddressOption,
|
|
HostName,
|
|
Len
|
|
);
|
|
|
|
//
|
|
// Perform DNS resolution.
|
|
//
|
|
Status = PxeBcDns6 (Private, HostName, SrvAddr);
|
|
if (EFI_ERROR (Status)) {
|
|
FreePool (TmpStr);
|
|
return Status;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Get the part of BOOTFILE_NAME string.
|
|
//
|
|
BootFileNamePtr = (CHAR8 *)((UINTN)ServerAddress + 1);
|
|
if (IpExpressedUrl) {
|
|
if (*BootFileNamePtr != PXEBC_TFTP_URL_SEPARATOR) {
|
|
FreePool (TmpStr);
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
++BootFileNamePtr;
|
|
}
|
|
|
|
BootFileNameLen = (UINT16)(Length - (UINT16)((UINTN)BootFileNamePtr - (UINTN)TmpStr) + 1);
|
|
if ((BootFileNameLen != 0) || (FileName != NULL)) {
|
|
//
|
|
// Remove trailing mode=octet if present and ignore. All other modes are
|
|
// invalid for netboot6, so reject them.
|
|
//
|
|
ModeStr = AsciiStrStr (BootFileNamePtr, ";mode=octet");
|
|
if ((ModeStr != NULL) && (*(ModeStr + AsciiStrLen (";mode=octet")) == '\0')) {
|
|
*ModeStr = '\0';
|
|
} else if (AsciiStrStr (BootFileNamePtr, ";mode=") != NULL) {
|
|
FreePool (TmpStr);
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
//
|
|
// Extract boot file name from URL.
|
|
//
|
|
BootFileName = (CHAR8 *)AllocateZeroPool (BootFileNameLen);
|
|
if (BootFileName == NULL) {
|
|
FreePool (TmpStr);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
*FileName = (UINT8 *)BootFileName;
|
|
|
|
//
|
|
// Decode percent-encoding in boot file name.
|
|
//
|
|
while (*BootFileNamePtr != '\0') {
|
|
if (*BootFileNamePtr == '%') {
|
|
TmpChar = *(BootFileNamePtr+ 3);
|
|
*(BootFileNamePtr+ 3) = '\0';
|
|
*BootFileName = (UINT8)AsciiStrHexToUintn ((CHAR8 *)(BootFileNamePtr + 1));
|
|
BootFileName++;
|
|
*(BootFileNamePtr+ 3) = TmpChar;
|
|
BootFileNamePtr += 3;
|
|
} else {
|
|
*BootFileName = *BootFileNamePtr;
|
|
BootFileName++;
|
|
BootFileNamePtr++;
|
|
}
|
|
}
|
|
|
|
*BootFileName = '\0';
|
|
}
|
|
|
|
FreePool (TmpStr);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Parse the Boot File Parameter option.
|
|
|
|
@param[in] BootFilePara The pointer to boot file parameter option data.
|
|
@param[out] BootFileSize The pointer to the parsed boot file size.
|
|
|
|
@retval EFI_SUCCESS Successfully obtained the boot file size from parameter option.
|
|
@retval EFI_NOT_FOUND Failed to extract the boot file size from parameter option.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcExtractBootFileParam (
|
|
IN CHAR8 *BootFilePara,
|
|
OUT UINT16 *BootFileSize
|
|
)
|
|
{
|
|
UINT16 Length;
|
|
UINT8 Index;
|
|
UINT8 Digit;
|
|
UINT32 Size;
|
|
|
|
CopyMem (&Length, BootFilePara, sizeof (UINT16));
|
|
Length = NTOHS (Length);
|
|
|
|
//
|
|
// The BootFile Size should be 1~5 byte ASCII strings
|
|
//
|
|
if ((Length < 1) || (Length > 5)) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
//
|
|
// Extract the value of BootFile Size.
|
|
//
|
|
BootFilePara = BootFilePara + sizeof (UINT16);
|
|
Size = 0;
|
|
for (Index = 0; Index < Length; Index++) {
|
|
if (EFI_ERROR (PxeBcUniHexToUint8 (&Digit, *(BootFilePara + Index)))) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
Size = (Size + Digit) * 10;
|
|
}
|
|
|
|
Size = Size / 10;
|
|
if (Size > PXEBC_DHCP6_MAX_BOOT_FILE_SIZE) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
*BootFileSize = (UINT16)Size;
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
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
|
|
PxeBcParseDhcp6Packet (
|
|
IN PXEBC_DHCP6_PACKET_CACHE *Cache6
|
|
)
|
|
{
|
|
EFI_DHCP6_PACKET *Offer;
|
|
EFI_DHCP6_PACKET_OPTION **Options;
|
|
EFI_DHCP6_PACKET_OPTION *Option;
|
|
PXEBC_OFFER_TYPE OfferType;
|
|
BOOLEAN IsProxyOffer;
|
|
BOOLEAN IsPxeOffer;
|
|
UINT32 Offset;
|
|
UINT32 Length;
|
|
UINT32 EnterpriseNum;
|
|
|
|
IsProxyOffer = TRUE;
|
|
IsPxeOffer = 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[PXEBC_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[PXEBC_DHCP6_IDX_BOOT_FILE_URL] = Option;
|
|
} else if (NTOHS (Option->OpCode) == DHCP6_OPT_BOOT_FILE_PARAM) {
|
|
Options[PXEBC_DHCP6_IDX_BOOT_FILE_PARAM] = Option;
|
|
} else if (NTOHS (Option->OpCode) == DHCP6_OPT_VENDOR_CLASS) {
|
|
Options[PXEBC_DHCP6_IDX_VENDOR_CLASS] = Option;
|
|
} else if (NTOHS (Option->OpCode) == DHCP6_OPT_DNS_SERVERS) {
|
|
Options[PXEBC_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[PXEBC_DHCP6_IDX_IA_NA];
|
|
if (Option != NULL) {
|
|
Option = PxeBcParseDhcp6Options (
|
|
Option->Data + 12,
|
|
NTOHS (Option->OpLen),
|
|
DHCP6_OPT_STATUS_CODE
|
|
);
|
|
if (((Option != NULL) && (Option->Data[0] == 0)) || (Option == NULL)) {
|
|
IsProxyOffer = FALSE;
|
|
}
|
|
}
|
|
|
|
//
|
|
// The offer with "PXEClient" is a pxe offer.
|
|
//
|
|
Option = Options[PXEBC_DHCP6_IDX_VENDOR_CLASS];
|
|
EnterpriseNum = HTONL (PXEBC_DHCP6_ENTERPRISE_NUM);
|
|
|
|
if ((Option != NULL) &&
|
|
(NTOHS (Option->OpLen) >= 13) &&
|
|
(CompareMem (Option->Data, &EnterpriseNum, sizeof (UINT32)) == 0) &&
|
|
(CompareMem (&Option->Data[6], DEFAULT_CLASS_ID_DATA, 9) == 0))
|
|
{
|
|
IsPxeOffer = TRUE;
|
|
}
|
|
|
|
//
|
|
// Determine offer type of the dhcp6 packet.
|
|
//
|
|
if (IsPxeOffer) {
|
|
//
|
|
// It's a binl offer only with PXEClient.
|
|
//
|
|
OfferType = IsProxyOffer ? PxeOfferTypeProxyBinl : PxeOfferTypeDhcpBinl;
|
|
} else {
|
|
//
|
|
// It's a dhcp only offer, which is a pure dhcp6 offer packet.
|
|
//
|
|
OfferType = PxeOfferTypeDhcpOnly;
|
|
}
|
|
|
|
Cache6->OfferType = OfferType;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Cache the DHCPv6 ack packet, and parse it on demand.
|
|
|
|
@param[in] Private The pointer to PxeBc private data.
|
|
@param[in] Ack The pointer to the DHCPv6 ack packet.
|
|
@param[in] Verified If TRUE, parse the ACK packet and store info into mode data.
|
|
|
|
@retval EFI_SUCCESS Cache and parse the packet successfully.
|
|
@retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcCopyDhcp6Ack (
|
|
IN PXEBC_PRIVATE_DATA *Private,
|
|
IN EFI_DHCP6_PACKET *Ack,
|
|
IN BOOLEAN Verified
|
|
)
|
|
{
|
|
EFI_PXE_BASE_CODE_MODE *Mode;
|
|
EFI_STATUS Status;
|
|
|
|
Mode = Private->PxeBc.Mode;
|
|
|
|
Status = PxeBcCacheDhcp6Packet (&Private->DhcpAck.Dhcp6.Packet.Ack, Ack);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
if (Verified) {
|
|
//
|
|
// Parse the ack packet and store it into mode data if needed.
|
|
//
|
|
PxeBcParseDhcp6Packet (&Private->DhcpAck.Dhcp6);
|
|
CopyMem (&Mode->DhcpAck.Dhcpv6, &Ack->Dhcp6, Ack->Length);
|
|
Mode->DhcpAckReceived = TRUE;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Cache the DHCPv6 proxy offer packet according to the received order.
|
|
|
|
@param[in] Private The pointer to PxeBc private data.
|
|
@param[in] OfferIndex The received order of offer packets.
|
|
|
|
@retval EFI_SUCCESS Cache and parse the packet successfully.
|
|
@retval EFI_BUFFER_TOO_SMALL Cache buffer is not big enough to hold the packet.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcCopyDhcp6Proxy (
|
|
IN PXEBC_PRIVATE_DATA *Private,
|
|
IN UINT32 OfferIndex
|
|
)
|
|
{
|
|
EFI_PXE_BASE_CODE_MODE *Mode;
|
|
EFI_DHCP6_PACKET *Offer;
|
|
EFI_STATUS Status;
|
|
|
|
ASSERT (OfferIndex < Private->OfferNum);
|
|
ASSERT (OfferIndex < PXEBC_OFFER_MAX_NUM);
|
|
|
|
Mode = Private->PxeBc.Mode;
|
|
Offer = &Private->OfferBuffer[OfferIndex].Dhcp6.Packet.Offer;
|
|
|
|
//
|
|
// Cache the proxy offer packet and parse it.
|
|
//
|
|
Status = PxeBcCacheDhcp6Packet (&Private->ProxyOffer.Dhcp6.Packet.Offer, Offer);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
PxeBcParseDhcp6Packet (&Private->ProxyOffer.Dhcp6);
|
|
|
|
//
|
|
// Store this packet into mode data.
|
|
//
|
|
CopyMem (&Mode->ProxyOffer.Dhcpv6, &Offer->Dhcp6, Offer->Length);
|
|
Mode->ProxyOfferReceived = TRUE;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Seek the address of the first byte of the option header.
|
|
|
|
@param[in] Buf The pointer to the buffer.
|
|
@param[in] SeekLen The length to seek.
|
|
@param[in] OptType The option type.
|
|
|
|
@retval NULL If it failed to seek the option.
|
|
@retval others The position to the option.
|
|
|
|
**/
|
|
UINT8 *
|
|
PxeBcDhcp6SeekOption (
|
|
IN UINT8 *Buf,
|
|
IN UINT32 SeekLen,
|
|
IN UINT16 OptType
|
|
)
|
|
{
|
|
UINT8 *Cursor;
|
|
UINT8 *Option;
|
|
UINT16 DataLen;
|
|
UINT16 OpCode;
|
|
|
|
Option = NULL;
|
|
Cursor = Buf;
|
|
|
|
while (Cursor < Buf + SeekLen) {
|
|
OpCode = ReadUnaligned16 ((UINT16 *)Cursor);
|
|
if (OpCode == HTONS (OptType)) {
|
|
Option = Cursor;
|
|
break;
|
|
}
|
|
|
|
DataLen = NTOHS (ReadUnaligned16 ((UINT16 *)(Cursor + 2)));
|
|
Cursor += (DataLen + 4);
|
|
}
|
|
|
|
return Option;
|
|
}
|
|
|
|
/**
|
|
Build and send out the request packet for the bootfile, and parse the reply.
|
|
|
|
@param[in] Private The pointer to PxeBc private data.
|
|
@param[in] Index PxeBc option boot item type.
|
|
|
|
@retval EFI_SUCCESS Successfully discovered the boot file.
|
|
@retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
|
|
@retval EFI_NOT_FOUND Can't get the PXE reply packet.
|
|
@retval Others Failed to discover the boot file.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcRequestBootService (
|
|
IN PXEBC_PRIVATE_DATA *Private,
|
|
IN UINT32 Index
|
|
)
|
|
{
|
|
EFI_PXE_BASE_CODE_UDP_PORT SrcPort;
|
|
EFI_PXE_BASE_CODE_UDP_PORT DestPort;
|
|
EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;
|
|
EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;
|
|
UINTN DiscoverLen;
|
|
EFI_DHCP6_PACKET *Request;
|
|
UINTN RequestLen;
|
|
EFI_DHCP6_PACKET *Reply;
|
|
UINT8 *RequestOpt;
|
|
UINT8 *DiscoverOpt;
|
|
UINTN ReadSize;
|
|
UINT16 OpFlags;
|
|
UINT16 OpCode;
|
|
UINT16 OpLen;
|
|
EFI_STATUS Status;
|
|
EFI_DHCP6_PACKET *IndexOffer;
|
|
UINT8 *Option;
|
|
|
|
PxeBc = &Private->PxeBc;
|
|
Request = Private->Dhcp6Request;
|
|
IndexOffer = &Private->OfferBuffer[Index].Dhcp6.Packet.Offer;
|
|
SrcPort = PXEBC_BS_DISCOVER_PORT;
|
|
DestPort = PXEBC_BS_DISCOVER_PORT;
|
|
OpFlags = 0;
|
|
|
|
if (Request == NULL) {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));
|
|
if (Discover == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
//
|
|
// Build the request packet by the cached request packet before.
|
|
//
|
|
Discover->TransactionId = IndexOffer->Dhcp6.Header.TransactionId;
|
|
Discover->MessageType = Request->Dhcp6.Header.MessageType;
|
|
RequestOpt = Request->Dhcp6.Option;
|
|
DiscoverOpt = Discover->DhcpOptions;
|
|
DiscoverLen = sizeof (EFI_DHCP6_HEADER);
|
|
RequestLen = DiscoverLen;
|
|
|
|
//
|
|
// Find Server ID Option from ProxyOffer.
|
|
//
|
|
if (Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl) {
|
|
Option = PxeBcDhcp6SeekOption (
|
|
IndexOffer->Dhcp6.Option,
|
|
IndexOffer->Length - 4,
|
|
DHCP6_OPT_SERVER_ID
|
|
);
|
|
if (Option == NULL) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
//
|
|
// Add Server ID Option.
|
|
//
|
|
OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *)Option)->OpLen);
|
|
CopyMem (DiscoverOpt, Option, OpLen + 4);
|
|
DiscoverOpt += (OpLen + 4);
|
|
DiscoverLen += (OpLen + 4);
|
|
}
|
|
|
|
while (RequestLen < Request->Length) {
|
|
OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *)RequestOpt)->OpCode);
|
|
OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *)RequestOpt)->OpLen);
|
|
if ((OpCode != EFI_DHCP6_IA_TYPE_NA) &&
|
|
(OpCode != EFI_DHCP6_IA_TYPE_TA) &&
|
|
(OpCode != DHCP6_OPT_SERVER_ID)
|
|
)
|
|
{
|
|
//
|
|
// Copy all the options except IA option and Server ID
|
|
//
|
|
CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);
|
|
DiscoverOpt += (OpLen + 4);
|
|
DiscoverLen += (OpLen + 4);
|
|
}
|
|
|
|
RequestOpt += (OpLen + 4);
|
|
RequestLen += (OpLen + 4);
|
|
}
|
|
|
|
//
|
|
// Update Elapsed option in the package
|
|
//
|
|
Option = PxeBcDhcp6SeekOption (
|
|
Discover->DhcpOptions,
|
|
(UINT32)(RequestLen - 4),
|
|
DHCP6_OPT_ELAPSED_TIME
|
|
);
|
|
if (Option != NULL) {
|
|
CalcElapsedTime (Private);
|
|
WriteUnaligned16 ((UINT16 *)(Option + 4), HTONS ((UINT16)Private->ElapsedTime));
|
|
}
|
|
|
|
Status = PxeBc->UdpWrite (
|
|
PxeBc,
|
|
OpFlags,
|
|
&Private->ServerIp,
|
|
&DestPort,
|
|
NULL,
|
|
&Private->StationIp,
|
|
&SrcPort,
|
|
NULL,
|
|
NULL,
|
|
&DiscoverLen,
|
|
(VOID *)Discover
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
//
|
|
// Cache the right PXE reply packet here, set valid flag later.
|
|
// Especially for PXE discover packet, store it into mode data here.
|
|
//
|
|
Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;
|
|
ReadSize = (UINTN)Reply->Size;
|
|
|
|
//
|
|
// Start Udp6Read instance
|
|
//
|
|
Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
Status = PxeBc->UdpRead (
|
|
PxeBc,
|
|
EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP | EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,
|
|
NULL,
|
|
&SrcPort,
|
|
&Private->ServerIp,
|
|
&DestPort,
|
|
NULL,
|
|
NULL,
|
|
&ReadSize,
|
|
(VOID *)&Reply->Dhcp6
|
|
);
|
|
//
|
|
// Stop Udp6Read instance
|
|
//
|
|
Private->Udp6Read->Configure (Private->Udp6Read, NULL);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
//
|
|
// Update length
|
|
//
|
|
Reply->Length = (UINT32)ReadSize;
|
|
|
|
return EFI_SUCCESS;
|
|
|
|
ON_ERROR:
|
|
if (Discover != NULL) {
|
|
FreePool (Discover);
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Retry to request bootfile name by the BINL offer.
|
|
|
|
@param[in] Private The pointer to PxeBc private data.
|
|
@param[in] Index The received order of offer packets.
|
|
|
|
@retval EFI_SUCCESS Successfully retried a request for the bootfile name.
|
|
@retval EFI_DEVICE_ERROR Failed to retry the bootfile name.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcRetryDhcp6Binl (
|
|
IN PXEBC_PRIVATE_DATA *Private,
|
|
IN UINT32 Index
|
|
)
|
|
{
|
|
EFI_PXE_BASE_CODE_MODE *Mode;
|
|
PXEBC_DHCP6_PACKET_CACHE *Offer;
|
|
PXEBC_DHCP6_PACKET_CACHE *Cache6;
|
|
EFI_STATUS Status;
|
|
|
|
ASSERT (Index < PXEBC_OFFER_MAX_NUM);
|
|
ASSERT (
|
|
Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeDhcpBinl ||
|
|
Private->OfferBuffer[Index].Dhcp6.OfferType == PxeOfferTypeProxyBinl
|
|
);
|
|
|
|
Mode = Private->PxeBc.Mode;
|
|
Private->IsDoDiscover = FALSE;
|
|
Offer = &Private->OfferBuffer[Index].Dhcp6;
|
|
if (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL) {
|
|
//
|
|
// There is no BootFileUrl option in dhcp6 offer, so use servers multi-cast address instead.
|
|
//
|
|
CopyMem (
|
|
&Private->ServerIp.v6,
|
|
&mAllDhcpRelayAndServersAddress,
|
|
sizeof (EFI_IPv6_ADDRESS)
|
|
);
|
|
} else {
|
|
ASSERT (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);
|
|
//
|
|
// Parse out the next server address from the last offer, and store it
|
|
//
|
|
Status = PxeBcExtractBootFileUrl (
|
|
Private,
|
|
&Private->BootFileName,
|
|
&Private->ServerIp.v6,
|
|
(CHAR8 *)(Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->Data),
|
|
NTOHS (Offer->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL]->OpLen)
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Retry Dhcp6Binl again for the bootfile, and the reply cached into Private->ProxyOffer.
|
|
//
|
|
Status = PxeBcRequestBootService (Private, Index);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
Cache6 = &Private->ProxyOffer.Dhcp6;
|
|
Status = PxeBcParseDhcp6Packet (Cache6);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
if ((Cache6->OfferType != PxeOfferTypeProxyPxe10) &&
|
|
(Cache6->OfferType != PxeOfferTypeProxyWfm11a) &&
|
|
(Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL))
|
|
{
|
|
//
|
|
// This BINL ack doesn't have discovery option set or multicast option set
|
|
// or bootfile name specified.
|
|
//
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
Mode->ProxyOfferReceived = TRUE;
|
|
CopyMem (
|
|
&Mode->ProxyOffer.Dhcpv6,
|
|
&Cache6->Packet.Offer.Dhcp6,
|
|
Cache6->Packet.Offer.Length
|
|
);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Cache all the received DHCPv6 offers, and set OfferIndex and OfferCount.
|
|
|
|
@param[in] Private The pointer to PXEBC_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
|
|
PxeBcCacheDhcp6Offer (
|
|
IN PXEBC_PRIVATE_DATA *Private,
|
|
IN EFI_DHCP6_PACKET *RcvdOffer
|
|
)
|
|
{
|
|
PXEBC_DHCP6_PACKET_CACHE *Cache6;
|
|
EFI_DHCP6_PACKET *Offer;
|
|
PXEBC_OFFER_TYPE OfferType;
|
|
EFI_STATUS Status;
|
|
|
|
Cache6 = &Private->OfferBuffer[Private->OfferNum].Dhcp6;
|
|
Offer = &Cache6->Packet.Offer;
|
|
|
|
//
|
|
// Cache the content of DHCPv6 packet firstly.
|
|
//
|
|
Status = PxeBcCacheDhcp6Packet (Offer, RcvdOffer);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Validate the DHCPv6 packet, and parse the options and offer type.
|
|
//
|
|
if (EFI_ERROR (PxeBcParseDhcp6Packet (Cache6))) {
|
|
return EFI_ABORTED;
|
|
}
|
|
|
|
//
|
|
// Determine whether cache the current offer by type, and record OfferIndex and OfferCount.
|
|
//
|
|
OfferType = Cache6->OfferType;
|
|
ASSERT (OfferType < PxeOfferTypeMax);
|
|
ASSERT (Private->OfferCount[OfferType] < PXEBC_OFFER_MAX_NUM);
|
|
|
|
if (IS_PROXY_OFFER (OfferType)) {
|
|
//
|
|
// It's a proxy offer without yiaddr, including PXE10, WFM11a or BINL offer.
|
|
//
|
|
Private->IsProxyRecved = TRUE;
|
|
|
|
if (OfferType == PxeOfferTypeProxyBinl) {
|
|
//
|
|
// Cache all proxy BINL offers.
|
|
//
|
|
Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;
|
|
Private->OfferCount[OfferType]++;
|
|
} else if (((OfferType == PxeOfferTypeProxyPxe10) || (OfferType == PxeOfferTypeProxyWfm11a)) &&
|
|
(Private->OfferCount[OfferType] < 1))
|
|
{
|
|
//
|
|
// Only cache the first PXE10/WFM11a offer, and discard the others.
|
|
//
|
|
Private->OfferIndex[OfferType][0] = Private->OfferNum;
|
|
Private->OfferCount[OfferType] = 1;
|
|
} else {
|
|
return EFI_ABORTED;
|
|
}
|
|
} else {
|
|
//
|
|
// It's a DHCPv6 offer with yiaddr, and cache them all.
|
|
//
|
|
Private->OfferIndex[OfferType][Private->OfferCount[OfferType]] = Private->OfferNum;
|
|
Private->OfferCount[OfferType]++;
|
|
}
|
|
|
|
Private->OfferNum++;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Select an DHCPv6 offer, and record SelectIndex and SelectProxyType.
|
|
|
|
@param[in] Private The pointer to PXEBC_PRIVATE_DATA.
|
|
|
|
**/
|
|
VOID
|
|
PxeBcSelectDhcp6Offer (
|
|
IN PXEBC_PRIVATE_DATA *Private
|
|
)
|
|
{
|
|
UINT32 Index;
|
|
UINT32 OfferIndex;
|
|
PXEBC_OFFER_TYPE OfferType;
|
|
|
|
Private->SelectIndex = 0;
|
|
|
|
if (Private->IsOfferSorted) {
|
|
//
|
|
// Select offer by default policy.
|
|
//
|
|
if (Private->OfferCount[PxeOfferTypeDhcpPxe10] > 0) {
|
|
//
|
|
// 1. DhcpPxe10 offer
|
|
//
|
|
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpPxe10][0] + 1;
|
|
} else if (Private->OfferCount[PxeOfferTypeDhcpWfm11a] > 0) {
|
|
//
|
|
// 2. DhcpWfm11a offer
|
|
//
|
|
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpWfm11a][0] + 1;
|
|
} else if ((Private->OfferCount[PxeOfferTypeDhcpOnly] > 0) &&
|
|
(Private->OfferCount[PxeOfferTypeProxyPxe10] > 0))
|
|
{
|
|
//
|
|
// 3. DhcpOnly offer and ProxyPxe10 offer.
|
|
//
|
|
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;
|
|
Private->SelectProxyType = PxeOfferTypeProxyPxe10;
|
|
} else if ((Private->OfferCount[PxeOfferTypeDhcpOnly] > 0) &&
|
|
(Private->OfferCount[PxeOfferTypeProxyWfm11a] > 0))
|
|
{
|
|
//
|
|
// 4. DhcpOnly offer and ProxyWfm11a offer.
|
|
//
|
|
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;
|
|
Private->SelectProxyType = PxeOfferTypeProxyWfm11a;
|
|
} else if (Private->OfferCount[PxeOfferTypeDhcpBinl] > 0) {
|
|
//
|
|
// 5. DhcpBinl offer.
|
|
//
|
|
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpBinl][0] + 1;
|
|
} else if ((Private->OfferCount[PxeOfferTypeDhcpOnly] > 0) &&
|
|
(Private->OfferCount[PxeOfferTypeProxyBinl] > 0))
|
|
{
|
|
//
|
|
// 6. DhcpOnly offer and ProxyBinl offer.
|
|
//
|
|
Private->SelectIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][0] + 1;
|
|
Private->SelectProxyType = PxeOfferTypeProxyBinl;
|
|
} else {
|
|
//
|
|
// 7. DhcpOnly offer with bootfilename.
|
|
//
|
|
for (Index = 0; Index < Private->OfferCount[PxeOfferTypeDhcpOnly]; Index++) {
|
|
OfferIndex = Private->OfferIndex[PxeOfferTypeDhcpOnly][Index];
|
|
if (Private->OfferBuffer[OfferIndex].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL) {
|
|
Private->SelectIndex = OfferIndex + 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
//
|
|
// Select offer by received order.
|
|
//
|
|
for (Index = 0; Index < Private->OfferNum; Index++) {
|
|
OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;
|
|
|
|
if (IS_PROXY_OFFER (OfferType)) {
|
|
//
|
|
// Skip proxy offers
|
|
//
|
|
continue;
|
|
}
|
|
|
|
if (!Private->IsProxyRecved &&
|
|
(OfferType == PxeOfferTypeDhcpOnly) &&
|
|
(Private->OfferBuffer[Index].Dhcp6.OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] == NULL))
|
|
{
|
|
//
|
|
// Skip if DhcpOnly offer without any other proxy offers or bootfilename.
|
|
//
|
|
continue;
|
|
}
|
|
|
|
Private->SelectIndex = Index + 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
Handle the DHCPv6 offer packet.
|
|
|
|
@param[in] Private The pointer to PXEBC_PRIVATE_DATA.
|
|
|
|
@retval EFI_SUCCESS Handled the DHCPv6 offer packet successfully.
|
|
@retval EFI_NO_RESPONSE No response to the following request packet.
|
|
@retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
|
|
@retval EFI_BUFFER_TOO_SMALL Can't cache the offer pacet.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcHandleDhcp6Offer (
|
|
IN PXEBC_PRIVATE_DATA *Private
|
|
)
|
|
{
|
|
PXEBC_DHCP6_PACKET_CACHE *Cache6;
|
|
EFI_STATUS Status;
|
|
PXEBC_OFFER_TYPE OfferType;
|
|
UINT32 ProxyIndex;
|
|
UINT32 SelectIndex;
|
|
UINT32 Index;
|
|
|
|
ASSERT (Private->SelectIndex > 0);
|
|
SelectIndex = (UINT32)(Private->SelectIndex - 1);
|
|
ASSERT (SelectIndex < PXEBC_OFFER_MAX_NUM);
|
|
Cache6 = &Private->OfferBuffer[SelectIndex].Dhcp6;
|
|
Status = EFI_SUCCESS;
|
|
|
|
//
|
|
// First try to cache DNS server address if DHCP6 offer provides.
|
|
//
|
|
if (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER] != NULL) {
|
|
Private->DnsServer = AllocateZeroPool (NTOHS (Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->OpLen));
|
|
if (Private->DnsServer == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
CopyMem (Private->DnsServer, Cache6->OptList[PXEBC_DHCP6_IDX_DNS_SERVER]->Data, sizeof (EFI_IPv6_ADDRESS));
|
|
}
|
|
|
|
if (Cache6->OfferType == PxeOfferTypeDhcpBinl) {
|
|
//
|
|
// DhcpBinl offer is selected, so need try to request bootfilename by this offer.
|
|
//
|
|
if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, SelectIndex))) {
|
|
Status = EFI_NO_RESPONSE;
|
|
}
|
|
} else if (Cache6->OfferType == PxeOfferTypeDhcpOnly) {
|
|
if (Private->IsProxyRecved) {
|
|
//
|
|
// DhcpOnly offer is selected, so need try to request bootfilename.
|
|
//
|
|
ProxyIndex = 0;
|
|
if (Private->IsOfferSorted) {
|
|
//
|
|
// The proxy offer should be determined if select by default policy.
|
|
// IsOfferSorted means all offers are labeled by OfferIndex.
|
|
//
|
|
ASSERT (Private->OfferCount[Private->SelectProxyType] > 0);
|
|
|
|
if (Private->SelectProxyType == PxeOfferTypeProxyBinl) {
|
|
//
|
|
// Try all the cached ProxyBinl offer one by one to request bootfilename.
|
|
//
|
|
for (Index = 0; Index < Private->OfferCount[Private->SelectProxyType]; Index++) {
|
|
ProxyIndex = Private->OfferIndex[Private->SelectProxyType][Index];
|
|
if (!EFI_ERROR (PxeBcRetryDhcp6Binl (Private, ProxyIndex))) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (Index == Private->OfferCount[Private->SelectProxyType]) {
|
|
Status = EFI_NO_RESPONSE;
|
|
}
|
|
} else {
|
|
//
|
|
// For other proxy offers (pxe10 or wfm11a), only one is buffered.
|
|
//
|
|
ProxyIndex = Private->OfferIndex[Private->SelectProxyType][0];
|
|
}
|
|
} else {
|
|
//
|
|
// The proxy offer should not be determined if select by received order.
|
|
//
|
|
Status = EFI_NO_RESPONSE;
|
|
|
|
for (Index = 0; Index < Private->OfferNum; Index++) {
|
|
OfferType = Private->OfferBuffer[Index].Dhcp6.OfferType;
|
|
|
|
if (!IS_PROXY_OFFER (OfferType)) {
|
|
//
|
|
// Skip non proxy dhcp offers.
|
|
//
|
|
continue;
|
|
}
|
|
|
|
if (OfferType == PxeOfferTypeProxyBinl) {
|
|
//
|
|
// Try all the cached ProxyBinl offer one by one to request bootfilename.
|
|
//
|
|
if (EFI_ERROR (PxeBcRetryDhcp6Binl (Private, Index))) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
Private->SelectProxyType = OfferType;
|
|
ProxyIndex = Index;
|
|
Status = EFI_SUCCESS;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!EFI_ERROR (Status) && (Private->SelectProxyType != PxeOfferTypeProxyBinl)) {
|
|
//
|
|
// Success to try to request by a ProxyPxe10 or ProxyWfm11a offer, copy and parse it.
|
|
//
|
|
Status = PxeBcCopyDhcp6Proxy (Private, ProxyIndex);
|
|
}
|
|
} else {
|
|
//
|
|
// Otherwise, the bootfilename must be included in DhcpOnly offer.
|
|
//
|
|
ASSERT (Cache6->OptList[PXEBC_DHCP6_IDX_BOOT_FILE_URL] != NULL);
|
|
}
|
|
}
|
|
|
|
if (!EFI_ERROR (Status)) {
|
|
//
|
|
// All PXE boot information is ready by now.
|
|
//
|
|
Status = PxeBcCopyDhcp6Ack (Private, &Private->DhcpAck.Dhcp6.Packet.Ack, TRUE);
|
|
Private->PxeBc.Mode->DhcpDiscoverValid = TRUE;
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Unregister the address by Ip6Config protocol.
|
|
|
|
@param[in] Private The pointer to PXEBC_PRIVATE_DATA.
|
|
|
|
**/
|
|
VOID
|
|
PxeBcUnregisterIp6Address (
|
|
IN PXEBC_PRIVATE_DATA *Private
|
|
)
|
|
{
|
|
if (Private->Ip6Policy != PXEBC_IP6_POLICY_MAX) {
|
|
//
|
|
// PXE driver change the policy of IP6 driver, it's a chance to recover.
|
|
// Keep the point and there is no enough requirements to do recovery.
|
|
//
|
|
}
|
|
}
|
|
|
|
/**
|
|
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 PXEBC_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
|
|
PxeBcCheckRouteTable (
|
|
IN PXEBC_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;
|
|
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;
|
|
}
|
|
|
|
/**
|
|
Register the ready station address and gateway by Ip6Config protocol.
|
|
|
|
@param[in] Private The pointer to PXEBC_PRIVATE_DATA.
|
|
@param[in] Address The pointer to the ready address.
|
|
|
|
@retval EFI_SUCCESS Registered the address successfully.
|
|
@retval Others Failed to register the address.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcRegisterIp6Address (
|
|
IN PXEBC_PRIVATE_DATA *Private,
|
|
IN EFI_IPv6_ADDRESS *Address
|
|
)
|
|
{
|
|
EFI_IP6_PROTOCOL *Ip6;
|
|
EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;
|
|
EFI_IP6_CONFIG_POLICY Policy;
|
|
EFI_IP6_CONFIG_MANUAL_ADDRESS CfgAddr;
|
|
EFI_IPv6_ADDRESS GatewayAddr;
|
|
UINTN DataSize;
|
|
EFI_EVENT MappedEvt;
|
|
EFI_STATUS Status;
|
|
BOOLEAN NoGateway;
|
|
EFI_IPv6_ADDRESS *Ip6Addr;
|
|
UINTN Index;
|
|
|
|
Status = EFI_SUCCESS;
|
|
MappedEvt = NULL;
|
|
Ip6Addr = NULL;
|
|
DataSize = sizeof (EFI_IP6_CONFIG_POLICY);
|
|
Ip6Cfg = Private->Ip6Cfg;
|
|
Ip6 = Private->Ip6;
|
|
NoGateway = FALSE;
|
|
|
|
ZeroMem (&CfgAddr, sizeof (EFI_IP6_CONFIG_MANUAL_ADDRESS));
|
|
CopyMem (&CfgAddr.Address, Address, sizeof (EFI_IPv6_ADDRESS));
|
|
|
|
Status = Ip6->Configure (Ip6, &Private->Ip6CfgData);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_EXIT;
|
|
}
|
|
|
|
//
|
|
// Retrieve the gateway address from IP6 route table.
|
|
//
|
|
Status = PxeBcCheckRouteTable (Private, PXEBC_IP6_ROUTE_TABLE_TIMEOUT, &GatewayAddr);
|
|
if (EFI_ERROR (Status)) {
|
|
NoGateway = TRUE;
|
|
}
|
|
|
|
//
|
|
// There is no channel between IP6 and PXE driver about address setting,
|
|
// so it has to set the new address by Ip6ConfigProtocol manually.
|
|
//
|
|
Policy = Ip6ConfigPolicyManual;
|
|
Status = Ip6Cfg->SetData (
|
|
Ip6Cfg,
|
|
Ip6ConfigDataTypePolicy,
|
|
sizeof (EFI_IP6_CONFIG_POLICY),
|
|
&Policy
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
//
|
|
// There is no need to recover later.
|
|
//
|
|
Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;
|
|
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,
|
|
PxeBcCommonNotify,
|
|
&Private->IsAddressOk,
|
|
&MappedEvt
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_EXIT;
|
|
}
|
|
|
|
Private->IsAddressOk = FALSE;
|
|
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 (!Private->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, Address, sizeof (EFI_IPv6_ADDRESS)) == 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (Index == DataSize / sizeof (EFI_IPv6_ADDRESS)) {
|
|
Status = EFI_ABORTED;
|
|
goto ON_EXIT;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Set the default gateway address back if needed.
|
|
//
|
|
if (!NoGateway && !NetIp6IsUnspecifiedAddr (&GatewayAddr)) {
|
|
Status = Ip6Cfg->SetData (
|
|
Ip6Cfg,
|
|
Ip6ConfigDataTypeGateway,
|
|
sizeof (EFI_IPv6_ADDRESS),
|
|
&GatewayAddr
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_EXIT;
|
|
}
|
|
}
|
|
|
|
ON_EXIT:
|
|
if (MappedEvt != NULL) {
|
|
Ip6Cfg->UnregisterDataNotify (
|
|
Ip6Cfg,
|
|
Ip6ConfigDataTypeManualAddress,
|
|
MappedEvt
|
|
);
|
|
gBS->CloseEvent (MappedEvt);
|
|
}
|
|
|
|
if (Ip6Addr != NULL) {
|
|
FreePool (Ip6Addr);
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Set the IP6 policy to Automatic.
|
|
|
|
@param[in] Private The pointer to PXEBC_PRIVATE_DATA.
|
|
|
|
@retval EFI_SUCCESS Switch the IP policy successfully.
|
|
@retval Others Unexpected error happened.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcSetIp6Policy (
|
|
IN PXEBC_PRIVATE_DATA *Private
|
|
)
|
|
{
|
|
EFI_IP6_CONFIG_POLICY Policy;
|
|
EFI_STATUS Status;
|
|
EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;
|
|
UINTN DataSize;
|
|
|
|
Ip6Cfg = Private->Ip6Cfg;
|
|
DataSize = sizeof (EFI_IP6_CONFIG_POLICY);
|
|
|
|
//
|
|
// Get and store the current policy of IP6 driver.
|
|
//
|
|
Status = Ip6Cfg->GetData (
|
|
Ip6Cfg,
|
|
Ip6ConfigDataTypePolicy,
|
|
&DataSize,
|
|
&Private->Ip6Policy
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
if (Private->Ip6Policy == Ip6ConfigPolicyManual) {
|
|
Policy = Ip6ConfigPolicyAutomatic;
|
|
Status = Ip6Cfg->SetData (
|
|
Ip6Cfg,
|
|
Ip6ConfigDataTypePolicy,
|
|
sizeof (EFI_IP6_CONFIG_POLICY),
|
|
&Policy
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
//
|
|
// There is no need to recover later.
|
|
//
|
|
Private->Ip6Policy = PXEBC_IP6_POLICY_MAX;
|
|
}
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
This function will register the station IP address and flush IP instance to start using the new IP address.
|
|
|
|
@param[in] Private The pointer to PXEBC_PRIVATE_DATA.
|
|
|
|
@retval EFI_SUCCESS The new IP address has been configured successfully.
|
|
@retval Others Failed to configure the address.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcSetIp6Address (
|
|
IN PXEBC_PRIVATE_DATA *Private
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_DHCP6_PROTOCOL *Dhcp6;
|
|
|
|
Dhcp6 = Private->Dhcp6;
|
|
|
|
CopyMem (&Private->StationIp.v6, &Private->TmpStationIp.v6, sizeof (EFI_IPv6_ADDRESS));
|
|
CopyMem (&Private->PxeBc.Mode->StationIp.v6, &Private->StationIp.v6, sizeof (EFI_IPv6_ADDRESS));
|
|
|
|
Status = PxeBcRegisterIp6Address (Private, &Private->StationIp.v6);
|
|
if (EFI_ERROR (Status)) {
|
|
Dhcp6->Stop (Dhcp6);
|
|
return Status;
|
|
}
|
|
|
|
Status = PxeBcFlushStationIp (Private, &Private->StationIp, NULL);
|
|
if (EFI_ERROR (Status)) {
|
|
PxeBcUnregisterIp6Address (Private);
|
|
Dhcp6->Stop (Dhcp6);
|
|
return Status;
|
|
}
|
|
|
|
AsciiPrint ("\n Station IP address is ");
|
|
PxeBcShowIp6Addr (&Private->StationIp.v6);
|
|
|
|
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.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PxeBcDhcp6CallBack (
|
|
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
|
|
)
|
|
{
|
|
PXEBC_PRIVATE_DATA *Private;
|
|
EFI_PXE_BASE_CODE_MODE *Mode;
|
|
EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;
|
|
EFI_DHCP6_PACKET *SelectAd;
|
|
EFI_STATUS Status;
|
|
BOOLEAN Received;
|
|
|
|
if ((Dhcp6Event != Dhcp6RcvdAdvertise) &&
|
|
(Dhcp6Event != Dhcp6SelectAdvertise) &&
|
|
(Dhcp6Event != Dhcp6SendSolicit) &&
|
|
(Dhcp6Event != Dhcp6SendRequest) &&
|
|
(Dhcp6Event != Dhcp6RcvdReply))
|
|
{
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
ASSERT (Packet != NULL);
|
|
|
|
Private = (PXEBC_PRIVATE_DATA *)Context;
|
|
Mode = Private->PxeBc.Mode;
|
|
Callback = Private->PxeBcCallback;
|
|
|
|
//
|
|
// Callback to user when any traffic occurred if has.
|
|
//
|
|
if ((Dhcp6Event != Dhcp6SelectAdvertise) && (Callback != NULL)) {
|
|
Received = (BOOLEAN)(Dhcp6Event == Dhcp6RcvdAdvertise || Dhcp6Event == Dhcp6RcvdReply);
|
|
Status = Callback->Callback (
|
|
Callback,
|
|
Private->Function,
|
|
Received,
|
|
Packet->Length,
|
|
(EFI_PXE_BASE_CODE_PACKET *)&Packet->Dhcp6
|
|
);
|
|
if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {
|
|
return EFI_ABORTED;
|
|
}
|
|
}
|
|
|
|
Status = EFI_SUCCESS;
|
|
|
|
switch (Dhcp6Event) {
|
|
case Dhcp6SendSolicit:
|
|
if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {
|
|
//
|
|
// If the to be sent packet exceeds the maximum length, abort the DHCP process.
|
|
//
|
|
Status = EFI_ABORTED;
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Record the first Solicate msg time
|
|
//
|
|
if (Private->SolicitTimes == 0) {
|
|
CalcElapsedTime (Private);
|
|
Private->SolicitTimes++;
|
|
}
|
|
|
|
//
|
|
// Cache the dhcp discover packet to mode data directly.
|
|
//
|
|
CopyMem (&Mode->DhcpDiscover.Dhcpv4, &Packet->Dhcp6, Packet->Length);
|
|
break;
|
|
|
|
case Dhcp6RcvdAdvertise:
|
|
Status = EFI_NOT_READY;
|
|
if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {
|
|
//
|
|
// Ignore the incoming packets which exceed the maximum length.
|
|
//
|
|
break;
|
|
}
|
|
|
|
if (Private->OfferNum < PXEBC_OFFER_MAX_NUM) {
|
|
//
|
|
// Cache the dhcp offers to OfferBuffer[] for select later, and record
|
|
// the OfferIndex and OfferCount.
|
|
//
|
|
PxeBcCacheDhcp6Offer (Private, Packet);
|
|
}
|
|
|
|
break;
|
|
|
|
case Dhcp6SendRequest:
|
|
if (Packet->Length > PXEBC_DHCP6_PACKET_MAX_SIZE) {
|
|
//
|
|
// If the to be sent packet exceeds the maximum length, abort the DHCP process.
|
|
//
|
|
Status = EFI_ABORTED;
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Store the request packet as seed packet for discover.
|
|
//
|
|
if (Private->Dhcp6Request != NULL) {
|
|
FreePool (Private->Dhcp6Request);
|
|
}
|
|
|
|
Private->Dhcp6Request = AllocateZeroPool (Packet->Size);
|
|
if (Private->Dhcp6Request != NULL) {
|
|
CopyMem (Private->Dhcp6Request, Packet, Packet->Size);
|
|
}
|
|
|
|
break;
|
|
|
|
case Dhcp6SelectAdvertise:
|
|
//
|
|
// Select offer by the default policy or by order, and record the SelectIndex
|
|
// and SelectProxyType.
|
|
//
|
|
PxeBcSelectDhcp6Offer (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);
|
|
if (*NewPacket == NULL) {
|
|
return EFI_ABORTED;
|
|
}
|
|
|
|
CopyMem (*NewPacket, SelectAd, SelectAd->Size);
|
|
}
|
|
|
|
break;
|
|
|
|
case Dhcp6RcvdReply:
|
|
//
|
|
// Cache the dhcp ack to Private->Dhcp6Ack, but it's not the final ack in mode data
|
|
// without verification.
|
|
//
|
|
ASSERT (Private->SelectIndex != 0);
|
|
Status = PxeBcCopyDhcp6Ack (Private, Packet, FALSE);
|
|
if (EFI_ERROR (Status)) {
|
|
Status = EFI_ABORTED;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
ASSERT (0);
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Build and send out the request packet for the bootfile, and parse the reply.
|
|
|
|
@param[in] Private The pointer to PxeBc private data.
|
|
@param[in] Type PxeBc option boot item type.
|
|
@param[in] Layer The pointer to option boot item layer.
|
|
@param[in] UseBis Use BIS or not.
|
|
@param[in] DestIp The pointer to the server address.
|
|
|
|
@retval EFI_SUCCESS Successfully discovered the boot file.
|
|
@retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
|
|
@retval EFI_NOT_FOUND Can't get the PXE reply packet.
|
|
@retval Others Failed to discover the boot file.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcDhcp6Discover (
|
|
IN PXEBC_PRIVATE_DATA *Private,
|
|
IN UINT16 Type,
|
|
IN UINT16 *Layer,
|
|
IN BOOLEAN UseBis,
|
|
IN EFI_IP_ADDRESS *DestIp
|
|
)
|
|
{
|
|
EFI_PXE_BASE_CODE_UDP_PORT SrcPort;
|
|
EFI_PXE_BASE_CODE_UDP_PORT DestPort;
|
|
EFI_PXE_BASE_CODE_MODE *Mode;
|
|
EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;
|
|
EFI_PXE_BASE_CODE_DHCPV6_PACKET *Discover;
|
|
UINTN DiscoverLen;
|
|
EFI_DHCP6_PACKET *Request;
|
|
UINTN RequestLen;
|
|
EFI_DHCP6_PACKET *Reply;
|
|
UINT8 *RequestOpt;
|
|
UINT8 *DiscoverOpt;
|
|
UINTN ReadSize;
|
|
UINT16 OpCode;
|
|
UINT16 OpLen;
|
|
UINT32 Xid;
|
|
EFI_STATUS Status;
|
|
|
|
PxeBc = &Private->PxeBc;
|
|
Mode = PxeBc->Mode;
|
|
Request = Private->Dhcp6Request;
|
|
SrcPort = PXEBC_BS_DISCOVER_PORT;
|
|
DestPort = PXEBC_BS_DISCOVER_PORT;
|
|
|
|
if (!UseBis && (Layer != NULL)) {
|
|
*Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;
|
|
}
|
|
|
|
if (Request == NULL) {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
Discover = AllocateZeroPool (sizeof (EFI_PXE_BASE_CODE_DHCPV6_PACKET));
|
|
if (Discover == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
//
|
|
// Build the discover packet by the cached request packet before.
|
|
//
|
|
Xid = NET_RANDOM (NetRandomInitSeed ());
|
|
Discover->TransactionId = HTONL (Xid);
|
|
Discover->MessageType = Request->Dhcp6.Header.MessageType;
|
|
RequestOpt = Request->Dhcp6.Option;
|
|
DiscoverOpt = Discover->DhcpOptions;
|
|
DiscoverLen = sizeof (EFI_DHCP6_HEADER);
|
|
RequestLen = DiscoverLen;
|
|
|
|
while (RequestLen < Request->Length) {
|
|
OpCode = NTOHS (((EFI_DHCP6_PACKET_OPTION *)RequestOpt)->OpCode);
|
|
OpLen = NTOHS (((EFI_DHCP6_PACKET_OPTION *)RequestOpt)->OpLen);
|
|
if ((OpCode != EFI_DHCP6_IA_TYPE_NA) &&
|
|
(OpCode != EFI_DHCP6_IA_TYPE_TA))
|
|
{
|
|
//
|
|
// Copy all the options except IA option.
|
|
//
|
|
CopyMem (DiscoverOpt, RequestOpt, OpLen + 4);
|
|
DiscoverOpt += (OpLen + 4);
|
|
DiscoverLen += (OpLen + 4);
|
|
}
|
|
|
|
RequestOpt += (OpLen + 4);
|
|
RequestLen += (OpLen + 4);
|
|
}
|
|
|
|
Status = PxeBc->UdpWrite (
|
|
PxeBc,
|
|
0,
|
|
&Private->ServerIp,
|
|
&DestPort,
|
|
NULL,
|
|
&Private->StationIp,
|
|
&SrcPort,
|
|
NULL,
|
|
NULL,
|
|
&DiscoverLen,
|
|
(VOID *)Discover
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
//
|
|
// Cache the right PXE reply packet here, set valid flag later.
|
|
// Especially for PXE discover packet, store it into mode data here.
|
|
//
|
|
if (Private->IsDoDiscover) {
|
|
CopyMem (&Mode->PxeDiscover.Dhcpv6, Discover, DiscoverLen);
|
|
Reply = &Private->PxeReply.Dhcp6.Packet.Ack;
|
|
} else {
|
|
Reply = &Private->ProxyOffer.Dhcp6.Packet.Offer;
|
|
}
|
|
|
|
ReadSize = (UINTN)Reply->Size;
|
|
|
|
//
|
|
// Start Udp6Read instance
|
|
//
|
|
Status = Private->Udp6Read->Configure (Private->Udp6Read, &Private->Udp6CfgData);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
Status = PxeBc->UdpRead (
|
|
PxeBc,
|
|
EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP,
|
|
NULL,
|
|
&SrcPort,
|
|
&Private->ServerIp,
|
|
&DestPort,
|
|
NULL,
|
|
NULL,
|
|
&ReadSize,
|
|
(VOID *)&Reply->Dhcp6
|
|
);
|
|
//
|
|
// Stop Udp6Read instance
|
|
//
|
|
Private->Udp6Read->Configure (Private->Udp6Read, NULL);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ON_ERROR;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
|
|
ON_ERROR:
|
|
if (Discover != NULL) {
|
|
FreePool (Discover);
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
Start the DHCPv6 S.A.R.R. process to acquire the IPv6 address and other PXE boot information.
|
|
|
|
@param[in] Private The pointer to PxeBc private data.
|
|
@param[in] Dhcp6 The pointer to the EFI_DHCP6_PROTOCOL
|
|
|
|
@retval EFI_SUCCESS The S.A.R.R. process successfully finished.
|
|
@retval Others Failed to finish the S.A.R.R. process.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
PxeBcDhcp6Sarr (
|
|
IN PXEBC_PRIVATE_DATA *Private,
|
|
IN EFI_DHCP6_PROTOCOL *Dhcp6
|
|
)
|
|
{
|
|
EFI_PXE_BASE_CODE_MODE *PxeMode;
|
|
EFI_DHCP6_CONFIG_DATA Config;
|
|
EFI_DHCP6_MODE_DATA Mode;
|
|
EFI_DHCP6_RETRANSMISSION *Retransmit;
|
|
EFI_DHCP6_PACKET_OPTION *OptList[PXEBC_DHCP6_OPTION_MAX_NUM];
|
|
UINT8 Buffer[PXEBC_DHCP6_OPTION_MAX_SIZE];
|
|
UINT32 OptCount;
|
|
EFI_STATUS Status;
|
|
EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;
|
|
EFI_STATUS TimerStatus;
|
|
EFI_EVENT Timer;
|
|
UINT64 GetMappingTimeOut;
|
|
UINTN DataSize;
|
|
EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadXmits;
|
|
|
|
Status = EFI_SUCCESS;
|
|
PxeMode = Private->PxeBc.Mode;
|
|
Ip6Cfg = Private->Ip6Cfg;
|
|
Timer = NULL;
|
|
|
|
//
|
|
// Build option list for the request packet.
|
|
//
|
|
OptCount = PxeBcBuildDhcp6Options (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 = PxeBcDhcp6CallBack;
|
|
Config.CallbackContext = Private;
|
|
Config.IaInfoEvent = NULL;
|
|
Config.RapidCommit = FALSE;
|
|
Config.ReconfigureAccept = FALSE;
|
|
Config.IaDescriptor.IaId = Private->IaId;
|
|
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 PXE boot.
|
|
//
|
|
Status = Dhcp6->Configure (Dhcp6, &Config);
|
|
FreePool (Retransmit);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Initialize the record fields for DHCPv6 offer in private data.
|
|
//
|
|
Private->IsProxyRecved = FALSE;
|
|
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 (Status == EFI_NO_MAPPING) {
|
|
//
|
|
// IP6 Linklocal address is not available for use, so stop current Dhcp process
|
|
// and wait for duplicate address detection to finish.
|
|
//
|
|
Dhcp6->Stop (Dhcp6);
|
|
|
|
//
|
|
// Get Duplicate Address Detection Transmits count.
|
|
//
|
|
DataSize = sizeof (EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS);
|
|
Status = Ip6Cfg->GetData (
|
|
Ip6Cfg,
|
|
Ip6ConfigDataTypeDupAddrDetectTransmits,
|
|
&DataSize,
|
|
&DadXmits
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
Dhcp6->Configure (Dhcp6, NULL);
|
|
return Status;
|
|
}
|
|
|
|
Status = gBS->CreateEvent (EVT_TIMER, TPL_CALLBACK, NULL, NULL, &Timer);
|
|
if (EFI_ERROR (Status)) {
|
|
Dhcp6->Configure (Dhcp6, NULL);
|
|
return Status;
|
|
}
|
|
|
|
GetMappingTimeOut = TICKS_PER_SECOND * DadXmits.DupAddrDetectTransmits + PXEBC_DAD_ADDITIONAL_DELAY;
|
|
Status = gBS->SetTimer (Timer, TimerRelative, GetMappingTimeOut);
|
|
if (EFI_ERROR (Status)) {
|
|
gBS->CloseEvent (Timer);
|
|
Dhcp6->Configure (Dhcp6, NULL);
|
|
return Status;
|
|
}
|
|
|
|
do {
|
|
TimerStatus = gBS->CheckEvent (Timer);
|
|
if (!EFI_ERROR (TimerStatus)) {
|
|
Status = Dhcp6->Start (Dhcp6);
|
|
}
|
|
} while (TimerStatus == EFI_NOT_READY);
|
|
|
|
gBS->CloseEvent (Timer);
|
|
}
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
if (Status == EFI_ICMP_ERROR) {
|
|
PxeMode->IcmpErrorReceived = TRUE;
|
|
}
|
|
|
|
Dhcp6->Configure (Dhcp6, NULL);
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Get the acquired IPv6 address and store them.
|
|
//
|
|
Status = Dhcp6->GetModeData (Dhcp6, &Mode, NULL);
|
|
if (EFI_ERROR (Status)) {
|
|
Dhcp6->Stop (Dhcp6);
|
|
return Status;
|
|
}
|
|
|
|
ASSERT ((Mode.Ia != NULL) && (Mode.Ia->State == Dhcp6Bound));
|
|
//
|
|
// DHCP6 doesn't have an option to specify the router address on the subnet, the only way to get the
|
|
// router address in IP6 is the router discovery mechanism (the RS and RA, which only be handled when
|
|
// the IP policy is Automatic). So we just hold the station IP address here and leave the IP policy as
|
|
// Automatic, until we get the server IP address. This could let IP6 driver finish the router discovery
|
|
// to find a valid router address.
|
|
//
|
|
CopyMem (&Private->TmpStationIp.v6, &Mode.Ia->IaAddress[0].IpAddress, sizeof (EFI_IPv6_ADDRESS));
|
|
if (Mode.ClientId != NULL) {
|
|
FreePool (Mode.ClientId);
|
|
}
|
|
|
|
if (Mode.Ia != NULL) {
|
|
FreePool (Mode.Ia);
|
|
}
|
|
|
|
//
|
|
// Check the selected offer whether BINL retry is needed.
|
|
//
|
|
Status = PxeBcHandleDhcp6Offer (Private);
|
|
if (EFI_ERROR (Status)) {
|
|
Dhcp6->Stop (Dhcp6);
|
|
return Status;
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|