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/** @file
Functions declaration related with DHCPv6 for UefiPxeBc Driver.
Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __EFI_PXEBC_DHCP6_H__
#define __EFI_PXEBC_DHCP6_H__
#define PXEBC_DHCP6_OPTION_MAX_NUM 16
#define PXEBC_DHCP6_OPTION_MAX_SIZE 312
#define PXEBC_DHCP6_PACKET_MAX_SIZE (sizeof (EFI_PXE_BASE_CODE_PACKET))
#define PXEBC_IP6_POLICY_MAX 0xff
#define PXEBC_IP6_ROUTE_TABLE_TIMEOUT 10
#define PXEBC_DHCP6_S_PORT 547
#define PXEBC_DHCP6_C_PORT 546
#define PXEBC_DHCP6_ENTERPRISE_NUM 343 // TODO: IANA TBD: temporarily using Intel's
#define PXEBC_DHCP6_MAX_BOOT_FILE_SIZE 65535 // It's a limitation of bit length, 65535*512 bytes.
#define PXEBC_DHCP6_IDX_IA_NA 0
#define PXEBC_DHCP6_IDX_BOOT_FILE_URL 1
#define PXEBC_DHCP6_IDX_BOOT_FILE_PARAM 2
#define PXEBC_DHCP6_IDX_VENDOR_CLASS 3
#define PXEBC_DHCP6_IDX_DNS_SERVER 4
#define PXEBC_DHCP6_IDX_MAX 5
#define PXEBC_DHCP6_BOOT_FILE_URL_PREFIX "tftp://"
#define PXEBC_TFTP_URL_SEPARATOR '/'
#define PXEBC_ADDR_START_DELIMITER '['
#define PXEBC_ADDR_END_DELIMITER ']'
//
// A DUID consists of a 2-octet type code represented in network byte
// order, followed by a variable number of octets that make up the
// actual identifier. The length of the DUID (not including the type
// code) is at least 1 octet and at most 128 octets.
//
#define PXEBC_MIN_SIZE_OF_DUID (sizeof(UINT16) + 1)
#define PXEBC_MAX_SIZE_OF_DUID (sizeof(UINT16) + 128)
//
// This define represents the combineds code and length field from
// https://datatracker.ietf.org/doc/html/rfc3315#section-22.1
//
#define PXEBC_COMBINED_SIZE_OF_OPT_CODE_AND_LEN \
(sizeof (((EFI_DHCP6_PACKET_OPTION *)0)->OpCode) + \
sizeof (((EFI_DHCP6_PACKET_OPTION *)0)->OpLen))
#define GET_NEXT_DHCP6_OPTION(Opt) \
(EFI_DHCP6_PACKET_OPTION *) ((UINT8 *) (Opt) + \
sizeof (EFI_DHCP6_PACKET_OPTION) + (NTOHS ((Opt)->OpLen)) - 1)
#define GET_DHCP6_OPTION_SIZE(Pkt) \
((Pkt)->Length - sizeof (EFI_DHCP6_HEADER))
#define IS_PROXY_OFFER(Type) \
((Type) == PxeOfferTypeProxyBinl || \
(Type) == PxeOfferTypeProxyPxe10 || \
(Type) == PxeOfferTypeProxyWfm11a)
#pragma pack(1)
typedef struct {
UINT16 OpCode[256];
} PXEBC_DHCP6_OPTION_ORO;
typedef struct {
UINT8 Type;
UINT8 MajorVer;
UINT8 MinorVer;
} PXEBC_DHCP6_OPTION_UNDI;
typedef struct {
UINT16 Type;
} PXEBC_DHCP6_OPTION_ARCH;
typedef struct {
UINT8 ClassIdentifier[10];
UINT8 ArchitecturePrefix[5];
UINT8 ArchitectureType[5];
UINT8 Lit3[1];
UINT8 InterfaceName[4];
UINT8 Lit4[1];
UINT8 UndiMajor[3];
UINT8 UndiMinor[3];
} PXEBC_CLASS_ID;
typedef struct {
UINT32 Vendor;
UINT16 ClassLen;
PXEBC_CLASS_ID ClassId;
} PXEBC_DHCP6_OPTION_VENDOR_CLASS;
#pragma pack()
typedef union {
PXEBC_DHCP6_OPTION_ORO *Oro;
PXEBC_DHCP6_OPTION_UNDI *Undi;
PXEBC_DHCP6_OPTION_ARCH *Arch;
PXEBC_DHCP6_OPTION_VENDOR_CLASS *VendorClass;
} PXEBC_DHCP6_OPTION_ENTRY;
typedef struct {
LIST_ENTRY Link;
EFI_DHCP6_PACKET_OPTION *Option;
UINT8 Precedence;
} PXEBC_DHCP6_OPTION_NODE;
#define PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE (OFFSET_OF (EFI_DHCP6_PACKET, Dhcp6) + PXEBC_DHCP6_PACKET_MAX_SIZE)
typedef union {
EFI_DHCP6_PACKET Offer;
EFI_DHCP6_PACKET Ack;
UINT8 Buffer[PXEBC_CACHED_DHCP6_PACKET_MAX_SIZE];
} PXEBC_DHCP6_PACKET;
typedef struct {
PXEBC_DHCP6_PACKET Packet;
PXEBC_OFFER_TYPE OfferType;
EFI_DHCP6_PACKET_OPTION *OptList[PXEBC_DHCP6_IDX_MAX];
} PXEBC_DHCP6_PACKET_CACHE;
/**
Parse the Boot File URL option.
@param[in] Private Pointer to PxeBc private data.
@param[out] FileName The pointer to the boot file name.
@param[in, out] SrvAddr The pointer to the boot server address.
@param[in] BootFile The pointer to the boot file URL option data.
@param[in] Length Length of the boot file URL option data.
@retval EFI_ABORTED User canceled the operation.
@retval EFI_SUCCESS Selected the boot menu successfully.
@retval EFI_NOT_READY Read the input key from the keyboard has not finish.
**/
EFI_STATUS
PxeBcExtractBootFileUrl (
IN PXEBC_PRIVATE_DATA *Private,
OUT UINT8 **FileName,
IN OUT EFI_IPv6_ADDRESS *SrvAddr,
IN CHAR8 *BootFile,
IN UINT16 Length
);
/**
Parse the Boot File Parameter option.
@param[in] BootFilePara The pointer to the 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
);
/**
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 packet.
**/
EFI_STATUS
PxeBcParseDhcp6Packet (
IN PXEBC_DHCP6_PACKET_CACHE *Cache6
);
/**
Register the ready address by Ip6Config protocol.
@param[in] Private The pointer to the 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
);
/**
Unregister the address by Ip6Config protocol.
@param[in] Private The pointer to the PxeBc private data.
**/
VOID
PxeBcUnregisterIp6Address (
IN PXEBC_PRIVATE_DATA *Private
);
/**
Build and send out the request packet for the bootfile, and parse the reply.
@param[in] Private The pointer to the PxeBc private data.
@param[in] Type PxeBc option boot item type.
@param[in] Layer The pointer to the 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 theboot file.
@retval EFI_OUT_OF_RESOURCES Failed to allocate resource.
@retval EFI_NOT_FOUND Can't get the PXE reply packet.
@retval Others Failed to discover boot file.
**/
EFI_STATUS
PxeBcDhcp6Discover (
IN PXEBC_PRIVATE_DATA *Private,
IN UINT16 Type,
IN UINT16 *Layer,
IN BOOLEAN UseBis,
IN EFI_IP_ADDRESS *DestIp
);
/**
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
);
/**
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
);
/**
Start the DHCPv6 S.A.R.R. process to acquire the IPv6 address and other PXE boot information.
@param[in] Private The pointer to the PxeBc private data.
@param[in] Dhcp6 The pointer to 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
);
#endif
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