[mirror_edk2.git] / MdeModulePkg / Universal / Network / UefiPxeBcDxe / PxeBcDhcp.h

/** @file\r
  Dhcp and Discover routines for PxeBc.\r
\r
Copyright (c) 2013, Red Hat, Inc.\r
Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef __EFI_PXEBC_DHCP_H__\r
#define __EFI_PXEBC_DHCP_H__\r
\r
#define PXEBC_DHCP4_MAX_OPTION_NUM         16\r
#define PXEBC_DHCP4_MAX_OPTION_SIZE        312\r
#define PXEBC_DHCP4_MAX_PACKET_SIZE        (sizeof (EFI_PXE_BASE_CODE_PACKET))\r
\r
#define PXEBC_DHCP4_S_PORT                 67\r
#define PXEBC_DHCP4_C_PORT                 68\r
#define PXEBC_BS_DOWNLOAD_PORT             69\r
#define PXEBC_BS_DISCOVER_PORT             4011\r
\r
#define PXEBC_DHCP4_OPCODE_REQUEST         1\r
#define PXEBC_DHCP4_OPCODE_REPLY           2\r
#define PXEBC_DHCP4_MSG_TYPE_REQUEST       3\r
#define PXEBC_DHCP4_MAGIC                  0x63538263 // network byte order\r
\r
//\r
// Sub-Options in Dhcp Vendor Option\r
//\r
#define PXEBC_VENDOR_TAG_MTFTP_IP          1\r
#define PXEBC_VENDOR_TAG_MTFTP_CPORT       2\r
#define PXEBC_VENDOR_TAG_MTFTP_SPORT       3\r
#define PXEBC_VENDOR_TAG_MTFTP_TIMEOUT     4\r
#define PXEBC_VENDOR_TAG_MTFTP_DELAY       5\r
#define PXEBC_VENDOR_TAG_DISCOVER_CTRL     6\r
#define PXEBC_VENDOR_TAG_DISCOVER_MCAST    7\r
#define PXEBC_VENDOR_TAG_BOOT_SERVERS      8\r
#define PXEBC_VENDOR_TAG_BOOT_MENU         9\r
#define PXEBC_VENDOR_TAG_MENU_PROMPT       10\r
#define PXEBC_VENDOR_TAG_MCAST_ALLOC       11\r
#define PXEBC_VENDOR_TAG_CREDENTIAL_TYPES  12\r
#define PXEBC_VENDOR_TAG_BOOT_ITEM         71\r
\r
#define PXEBC_DHCP4_DISCOVER_INIT_TIMEOUT  4\r
#define PXEBC_DHCP4_DISCOVER_RETRIES       4\r
\r
#define PXEBC_MAX_MENU_NUM                 24\r
#define PXEBC_MAX_OFFER_NUM                16\r
\r
#define PXEBC_BOOT_REQUEST_TIMEOUT         1\r
#define PXEBC_BOOT_REQUEST_RETRIES         4\r
\r
#define PXEBC_DHCP4_OVERLOAD_FILE          1\r
#define PXEBC_DHCP4_OVERLOAD_SERVER_NAME   2\r
\r
//\r
// The array index of the DHCP4 option tag interested\r
//\r
#define PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN 0\r
#define PXEBC_DHCP4_TAG_INDEX_VENDOR       1\r
#define PXEBC_DHCP4_TAG_INDEX_OVERLOAD     2\r
#define PXEBC_DHCP4_TAG_INDEX_MSG_TYPE     3\r
#define PXEBC_DHCP4_TAG_INDEX_SERVER_ID    4\r
#define PXEBC_DHCP4_TAG_INDEX_CLASS_ID     5\r
#define PXEBC_DHCP4_TAG_INDEX_BOOTFILE     6\r
#define PXEBC_DHCP4_TAG_INDEX_MAX          7\r
\r
//\r
// The type of DHCP OFFER, arranged by priority, PXE10 has the highest priority.\r
//\r
#define DHCP4_PACKET_TYPE_PXE10            0\r
#define DHCP4_PACKET_TYPE_WFM11A           1\r
#define DHCP4_PACKET_TYPE_BINL             2\r
#define DHCP4_PACKET_TYPE_DHCP_ONLY        3\r
#define DHCP4_PACKET_TYPE_BOOTP            4\r
#define DHCP4_PACKET_TYPE_MAX              5\r
\r
#define BIT(x)  (1 << x)\r
#define CTRL(x) (0x1F & (x))\r
\r
//\r
// WfM11a options\r
//\r
#define MTFTP_VENDOR_OPTION_BIT_MAP (BIT (PXEBC_VENDOR_TAG_MTFTP_IP) | \\r
                                     BIT (PXEBC_VENDOR_TAG_MTFTP_CPORT) | \\r
                                     BIT (PXEBC_VENDOR_TAG_MTFTP_SPORT) | \\r
                                     BIT (PXEBC_VENDOR_TAG_MTFTP_TIMEOUT) | \\r
                                     BIT (PXEBC_VENDOR_TAG_MTFTP_DELAY))\r
//\r
// Discoverty options\r
//\r
#define DISCOVER_VENDOR_OPTION_BIT_MAP  (BIT (PXEBC_VENDOR_TAG_DISCOVER_CTRL) | \\r
                                         BIT (PXEBC_VENDOR_TAG_DISCOVER_MCAST) | \\r
                                         BIT (PXEBC_VENDOR_TAG_BOOT_SERVERS) | \\r
                                         BIT (PXEBC_VENDOR_TAG_BOOT_MENU) | \\r
                                         BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))\r
\r
#define IS_VALID_BOOT_PROMPT(x) \\r
  ((((x)[0]) & BIT (PXEBC_VENDOR_TAG_MENU_PROMPT)) == BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))\r
\r
#define IS_VALID_BOOT_MENU(x) \\r
  ((((x)[0]) & BIT (PXEBC_VENDOR_TAG_BOOT_MENU)) == BIT (PXEBC_VENDOR_TAG_BOOT_MENU))\r
\r
#define IS_VALID_MTFTP_VENDOR_OPTION(x) \\r
    (((UINT32) ((x)[0]) & MTFTP_VENDOR_OPTION_BIT_MAP) == MTFTP_VENDOR_OPTION_BIT_MAP)\r
\r
#define IS_VALID_DISCOVER_VENDOR_OPTION(x)  (((UINT32) ((x)[0]) & DISCOVER_VENDOR_OPTION_BIT_MAP) != 0)\r
\r
#define IS_VALID_CREDENTIAL_VENDOR_OPTION(x) \\r
    (((UINT32) ((x)[0]) & BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES)) == BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES))\r
\r
#define IS_VALID_BOOTITEM_VENDOR_OPTION(x) \\r
    (((UINT32) ((x)[PXEBC_VENDOR_TAG_BOOT_ITEM / 32]) & BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32)) \\r
      == BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32))\r
\r
#define IS_DISABLE_BCAST_DISCOVER(x)    (((x) & BIT (0)) == BIT (0))\r
#define IS_DISABLE_MCAST_DISCOVER(x)    (((x) & BIT (1)) == BIT (1))\r
#define IS_ENABLE_USE_SERVER_LIST(x)    (((x) & BIT (2)) == BIT (2))\r
#define IS_DISABLE_PROMPT_MENU(x)       (((x) & BIT (3)) == BIT (3))\r
\r
#define SET_VENDOR_OPTION_BIT_MAP(x, y) (((x)[(y) / 32]) = (UINT32) ((x)[(y) / 32]) | BIT ((y) % 32))\r
\r
#pragma pack(1)\r
typedef struct {\r
  UINT8 ParaList[135];\r
} PXEBC_DHCP4_OPTION_PARA;\r
\r
typedef struct {\r
  UINT16  Size;\r
} PXEBC_DHCP4_OPTION_MAX_MESG_SIZE;\r
\r
typedef struct {\r
  UINT8 Type;\r
  UINT8 MajorVer;\r
  UINT8 MinorVer;\r
} PXEBC_DHCP4_OPTION_UNDI;\r
\r
typedef struct {\r
  UINT8 Type;\r
} PXEBC_DHCP4_OPTION_MESG;\r
\r
typedef struct {\r
  UINT16  Type;\r
} PXEBC_DHCP4_OPTION_ARCH;\r
\r
#define DEFAULT_CLASS_ID_DATA "PXEClient:Arch:xxxxx:UNDI:003000"\r
#define DEFAULT_UNDI_TYPE     1\r
#define DEFAULT_UNDI_MAJOR    3\r
#define DEFAULT_UNDI_MINOR    0\r
\r
typedef struct {\r
  UINT8 ClassIdentifier[10];\r
  UINT8 ArchitecturePrefix[5];\r
  UINT8 ArchitectureType[5];\r
  UINT8 Lit3[1];\r
  UINT8 InterfaceName[4];\r
  UINT8 Lit4[1];\r
  UINT8 UndiMajor[3];\r
  UINT8 UndiMinor[3];\r
} PXEBC_DHCP4_OPTION_CLID;\r
\r
typedef struct {\r
  UINT8 Type;\r
  UINT8 Guid[16];\r
} PXEBC_DHCP4_OPTION_UUID;\r
\r
typedef struct {\r
  UINT16  Type;\r
  UINT16  Layer;\r
} PXEBC_OPTION_BOOT_ITEM;\r
\r
#pragma pack()\r
\r
typedef union {\r
  PXEBC_DHCP4_OPTION_PARA           *Para;\r
  PXEBC_DHCP4_OPTION_UNDI           *Undi;\r
  PXEBC_DHCP4_OPTION_ARCH           *Arch;\r
  PXEBC_DHCP4_OPTION_CLID           *Clid;\r
  PXEBC_DHCP4_OPTION_UUID           *Uuid;\r
  PXEBC_DHCP4_OPTION_MESG           *Mesg;\r
  PXEBC_DHCP4_OPTION_MAX_MESG_SIZE  *MaxMesgSize;\r
} PXEBC_DHCP4_OPTION_ENTRY;\r
\r
typedef struct {\r
  UINT16            Type;\r
  UINT8             IpCnt;\r
  EFI_IPv4_ADDRESS  IpAddr[1];\r
} PXEBC_BOOT_SVR_ENTRY;\r
\r
typedef struct {\r
  UINT16  Type;\r
  UINT8   DescLen;\r
  UINT8   DescStr[1];\r
} PXEBC_BOOT_MENU_ENTRY;\r
\r
typedef struct {\r
  UINT8 Timeout;\r
  UINT8 Prompt[1];\r
} PXEBC_MENU_PROMPT;\r
\r
typedef struct {\r
  UINT32                BitMap[8];\r
  EFI_IPv4_ADDRESS      MtftpIp;\r
  UINT16                MtftpCPort;\r
  UINT16                MtftpSPort;\r
  UINT8                 MtftpTimeout;\r
  UINT8                 MtftpDelay;\r
  UINT8                 DiscoverCtrl;\r
  EFI_IPv4_ADDRESS      DiscoverMcastIp;\r
  EFI_IPv4_ADDRESS      McastIpBase;\r
  UINT16                McastIpBlock;\r
  UINT16                McastIpRange;\r
  UINT16                BootSrvType;\r
  UINT16                BootSrvLayer;\r
  PXEBC_BOOT_SVR_ENTRY  *BootSvr;\r
  UINT8                 BootSvrLen;\r
  PXEBC_BOOT_MENU_ENTRY *BootMenu;\r
  UINT8                 BootMenuLen;\r
  PXEBC_MENU_PROMPT     *MenuPrompt;\r
  UINT8                 MenuPromptLen;\r
  UINT32                *CredType;\r
  UINT8                 CredTypeLen;\r
} PXEBC_VENDOR_OPTION;\r
\r
#define PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE  (OFFSET_OF (EFI_DHCP4_PACKET, Dhcp4) + PXEBC_DHCP4_MAX_PACKET_SIZE)\r
\r
typedef union {\r
  EFI_DHCP4_PACKET  Offer;\r
  EFI_DHCP4_PACKET  Ack;\r
  UINT8             Buffer[PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE];\r
} PXEBC_DHCP4_PACKET;\r
\r
typedef struct {\r
  PXEBC_DHCP4_PACKET      Packet;\r
  BOOLEAN                 IsPxeOffer;\r
  UINT8                   OfferType;\r
  EFI_DHCP4_PACKET_OPTION *Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_MAX];\r
  PXEBC_VENDOR_OPTION    PxeVendorOption;\r
} PXEBC_CACHED_DHCP4_PACKET;\r
\r
#define GET_NEXT_DHCP_OPTION(Opt) \\r
  (EFI_DHCP4_PACKET_OPTION *) ((UINT8 *) (Opt) + sizeof (EFI_DHCP4_PACKET_OPTION) + (Opt)->Length - 1)\r
\r
#define GET_OPTION_BUFFER_LEN(Pkt)  ((Pkt)->Length - sizeof (EFI_DHCP4_HEADER) - 4)\r
#define IS_PROXY_DHCP_OFFER(Offer)  EFI_IP4_EQUAL (&((Offer)->Dhcp4.Header.YourAddr), &mZeroIp4Addr)\r
\r
#define GET_NEXT_BOOT_SVR_ENTRY(Ent) \\r
  (PXEBC_BOOT_SVR_ENTRY *) ((UINT8 *) Ent + sizeof (*(Ent)) + ((Ent)->IpCnt - 1) * sizeof (EFI_IPv4_ADDRESS))\r
\r
\r
/**\r
  This function initialize the DHCP4 message instance.\r
\r
  This function will pad each item of dhcp4 message packet.\r
\r
  @param  Seed    Pointer to the message instance of the DHCP4 packet.\r
  @param  Udp4    Pointer to the EFI_UDP4_PROTOCOL instance.\r
\r
**/\r
VOID\r
PxeBcInitSeedPacket (\r
  IN EFI_DHCP4_PACKET  *Seed,\r
  IN EFI_UDP4_PROTOCOL *Udp4\r
  );\r
\r
\r
/**\r
  Parse the cached dhcp packet.\r
\r
  @param  CachedPacket  Pointer to cached dhcp packet.\r
\r
  @retval TRUE          Succeed to parse and validation.\r
  @retval FALSE         Fail to parse or validation.\r
\r
**/\r
BOOLEAN\r
PxeBcParseCachedDhcpPacket (\r
  IN PXEBC_CACHED_DHCP4_PACKET  *CachedPacket\r
  );\r
\r
/**\r
  This function is to check the selected proxy offer (include BINL dhcp offer and\r
  DHCP_ONLY offer ) and set the flag and copy the DHCP packets to the Pxe base code\r
  mode structure.\r
\r
  @param  Private          Pointer to PxeBc private data.\r
\r
  @retval EFI_SUCCESS                Operational successful.\r
  @retval EFI_NO_RESPONSE            Offer dhcp service failed.\r
  @retval EFI_BUFFER_TOO_SMALL       Failed to copy the packet to Pxe base code mode.\r
\r
**/\r
EFI_STATUS\r
PxeBcCheckSelectedOffer (\r
  IN PXEBC_PRIVATE_DATA  *Private\r
  );\r
\r
\r
/**\r
  Callback routine.\r
\r
  EFI_DHCP4_CALLBACK is provided by the consumer of the EFI DHCPv4 Protocol driver\r
  to intercept events that occurred in the configuration process. This structure\r
  provides advanced control of each state transition of the DHCP process. The\r
  returned status code determines the behavior of the EFI DHCPv4 Protocol driver.\r
  There are three possible returned values, which are described in the following\r
  table.\r
\r
  @param  This                  Pointer to the EFI DHCPv4 Protocol instance that is used to\r
                                configure this callback function.\r
  @param  Context               Pointer to the context that is initialized by\r
                                EFI_DHCP4_PROTOCOL.Configure().\r
  @param  CurrentState          The current operational state of the EFI DHCPv4 Protocol\r
                                driver.\r
  @param  Dhcp4Event            The event that occurs in the current state, which usually means a\r
                                state transition.\r
  @param  Packet                The DHCP packet that is going to be sent or already received.\r
  @param  NewPacket             The packet that is used to replace the above Packet.\r
\r
  @retval EFI_SUCCESS           Tells the EFI DHCPv4 Protocol driver to continue the DHCP process.\r
  @retval EFI_NOT_READY         Only used in the Dhcp4Selecting state. The EFI DHCPv4 Protocol\r
                                driver will continue to wait for more DHCPOFFER packets until the retry\r
                                timeout expires.\r
  @retval EFI_ABORTED           Tells the EFI DHCPv4 Protocol driver to abort the current process and\r
                                return to the Dhcp4Init or Dhcp4InitReboot state.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PxeBcDhcpCallBack (\r
  IN EFI_DHCP4_PROTOCOL                * This,\r
  IN VOID                              *Context,\r
  IN EFI_DHCP4_STATE                   CurrentState,\r
  IN EFI_DHCP4_EVENT                   Dhcp4Event,\r
  IN EFI_DHCP4_PACKET                  * Packet OPTIONAL,\r
  OUT EFI_DHCP4_PACKET                 **NewPacket OPTIONAL\r
  );\r
\r
/**\r
  Switch the Ip4 policy to static.\r
\r
  @param[in]  Private             The pointer to PXEBC_PRIVATE_DATA.\r
\r
  @retval     EFI_SUCCESS         The policy is already configured to static.\r
  @retval     Others              Other error as indicated..\r
\r
**/\r
EFI_STATUS\r
PxeBcSetIp4Policy (\r
  IN PXEBC_PRIVATE_DATA            *Private\r
  );\r
\r
/**\r
  Discover the boot of service and initialize the vendor option if exists.\r
\r
  @param  Private               Pointer to PxeBc private data.\r
  @param  Type                  PxeBc option boot item type\r
  @param  Layer                 PxeBc option boot item layer\r
  @param  UseBis                Use BIS or not\r
  @param  DestIp                Ip address for server\r
  @param  IpCount               The total count of the server ip address\r
  @param  SrvList               Server list\r
  @param  IsDiscv               Discover the vendor or not\r
  @param  Reply                 The dhcp4 packet of Pxe reply\r
\r
  @retval EFI_SUCCESS           Operation succeeds.\r
  @retval EFI_OUT_OF_RESOURCES  Allocate memory pool failed.\r
  @retval EFI_NOT_FOUND         There is no vendor option exists.\r
  @retval EFI_TIMEOUT           Send Pxe Discover time out.\r
\r
**/\r
EFI_STATUS\r
PxeBcDiscvBootService (\r
  IN PXEBC_PRIVATE_DATA                * Private,\r
  IN UINT16                            Type,\r
  IN UINT16                            *Layer,\r
  IN BOOLEAN                           UseBis,\r
  IN EFI_IP_ADDRESS                    * DestIp,\r
  IN UINT16                            IpCount,\r
  IN EFI_PXE_BASE_CODE_SRVLIST         * SrvList,\r
  IN BOOLEAN                           IsDiscv,\r
  OUT EFI_DHCP4_PACKET                 * Reply OPTIONAL\r
  );\r
\r
\r
/**\r
  Initialize the DHCP options and build the option list.\r
\r
  @param  Private          Pointer to PxeBc private data.\r
  @param  OptList          Pointer to a DHCP option list.\r
\r
  @param  IsDhcpDiscover   Discover dhcp option or not.\r
\r
  @return The index item number of the option list.\r
\r
**/\r
UINT32\r
PxeBcBuildDhcpOptions (\r
  IN PXEBC_PRIVATE_DATA            *Private,\r
  IN EFI_DHCP4_PACKET_OPTION       **OptList,\r
  IN BOOLEAN                       IsDhcpDiscover\r
  );\r
\r
\r
/**\r
  Create the boot options.\r
\r
  @param  OptList    Pointer to the list of the options\r
  @param  Type       the type of option\r
  @param  Layer      the layer of the boot options\r
  @param  OptLen     length of opotion\r
\r
**/\r
VOID\r
PxeBcCreateBootOptions (\r
  IN  EFI_DHCP4_PACKET_OPTION          *OptList,\r
  IN  UINT16                           Type,\r
  IN  UINT16                           *Layer,\r
  OUT UINT32                           *OptLen\r
  );\r
\r
\r
/**\r
  Parse interested dhcp options.\r
\r
  @param  Buffer     Pointer to the dhcp options packet.\r
  @param  Length     The length of the dhcp options.\r
  @param  OptTag     The option OpCode.\r
\r
  @return NULL if the buffer length is 0 and OpCode is not\r
          DHCP4_TAG_EOP, or the pointer to the buffer.\r
\r
**/\r
EFI_DHCP4_PACKET_OPTION *\r
PxeBcParseExtendOptions (\r
  IN UINT8                         *Buffer,\r
  IN UINT32                        Length,\r
  IN UINT8                         OptTag\r
  );\r
\r
\r
/**\r
  This function is to parse and check vendor options.\r
\r
  @param  Dhcp4Option           Pointer to dhcp options\r
  @param  VendorOption          Pointer to vendor options\r
\r
  @return TRUE if valid for vendor options, or FALSE.\r
\r
**/\r
BOOLEAN\r
PxeBcParseVendorOptions (\r
  IN EFI_DHCP4_PACKET_OPTION       *Dhcp4Option,\r
  IN PXEBC_VENDOR_OPTION           *VendorOption\r
  );\r
\r
\r
/**\r
  Choose the boot prompt.\r
\r
  @param  Private              Pointer to PxeBc private data.\r
\r
  @retval EFI_SUCCESS          Select boot prompt done.\r
  @retval EFI_TIMEOUT          Select boot prompt time out.\r
  @retval EFI_NOT_FOUND        The proxy offer is not Pxe10.\r
  @retval EFI_ABORTED          User cancel the operation.\r
  @retval EFI_NOT_READY        Read the input key from the keybroad has not finish.\r
\r
**/\r
EFI_STATUS\r
PxeBcSelectBootPrompt (\r
  IN PXEBC_PRIVATE_DATA              *Private\r
  );\r
\r
\r
/**\r
  Select the boot menu.\r
\r
  @param  Private         Pointer to PxeBc private data.\r
  @param  Type            The type of the menu.\r
  @param  UseDefaultItem  Use default item or not.\r
\r
  @retval EFI_ABORTED     User cancel operation.\r
  @retval EFI_SUCCESS     Select the boot menu success.\r
  @retval EFI_NOT_READY   Read the input key from the keybroad has not finish.\r
\r
**/\r
EFI_STATUS\r
PxeBcSelectBootMenu (\r
  IN  PXEBC_PRIVATE_DATA              *Private,\r
  OUT UINT16                          *Type,\r
  IN  BOOLEAN                         UseDefaultItem\r
  );\r
\r
#endif\r
\r
Commit	Line	Data
	1	/** @file\r
	2	Dhcp and Discover routines for PxeBc.\r
	3	\r
	4	Copyright (c) 2013, Red Hat, Inc.\r
	5	Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r
	6	This program and the accompanying materials\r
	7	are licensed and made available under the terms and conditions of the BSD License\r
	8	which accompanies this distribution. The full text of the license may be found at\r
	9	http://opensource.org/licenses/bsd-license.php\r
	10	\r
	11	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	12	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	13	\r
	14	**/\r
	15	\r
	16	#ifndef __EFI_PXEBC_DHCP_H__\r
	17	#define __EFI_PXEBC_DHCP_H__\r
	18	\r
	19	#define PXEBC_DHCP4_MAX_OPTION_NUM 16\r
	20	#define PXEBC_DHCP4_MAX_OPTION_SIZE 312\r
	21	#define PXEBC_DHCP4_MAX_PACKET_SIZE (sizeof (EFI_PXE_BASE_CODE_PACKET))\r
	22	\r
	23	#define PXEBC_DHCP4_S_PORT 67\r
	24	#define PXEBC_DHCP4_C_PORT 68\r
	25	#define PXEBC_BS_DOWNLOAD_PORT 69\r
	26	#define PXEBC_BS_DISCOVER_PORT 4011\r
	27	\r
	28	#define PXEBC_DHCP4_OPCODE_REQUEST 1\r
	29	#define PXEBC_DHCP4_OPCODE_REPLY 2\r
	30	#define PXEBC_DHCP4_MSG_TYPE_REQUEST 3\r
	31	#define PXEBC_DHCP4_MAGIC 0x63538263 // network byte order\r
	32	\r
	33	//\r
	34	// Sub-Options in Dhcp Vendor Option\r
	35	//\r
	36	#define PXEBC_VENDOR_TAG_MTFTP_IP 1\r
	37	#define PXEBC_VENDOR_TAG_MTFTP_CPORT 2\r
	38	#define PXEBC_VENDOR_TAG_MTFTP_SPORT 3\r
	39	#define PXEBC_VENDOR_TAG_MTFTP_TIMEOUT 4\r
	40	#define PXEBC_VENDOR_TAG_MTFTP_DELAY 5\r
	41	#define PXEBC_VENDOR_TAG_DISCOVER_CTRL 6\r
	42	#define PXEBC_VENDOR_TAG_DISCOVER_MCAST 7\r
	43	#define PXEBC_VENDOR_TAG_BOOT_SERVERS 8\r
	44	#define PXEBC_VENDOR_TAG_BOOT_MENU 9\r
	45	#define PXEBC_VENDOR_TAG_MENU_PROMPT 10\r
	46	#define PXEBC_VENDOR_TAG_MCAST_ALLOC 11\r
	47	#define PXEBC_VENDOR_TAG_CREDENTIAL_TYPES 12\r
	48	#define PXEBC_VENDOR_TAG_BOOT_ITEM 71\r
	49	\r
	50	#define PXEBC_DHCP4_DISCOVER_INIT_TIMEOUT 4\r
	51	#define PXEBC_DHCP4_DISCOVER_RETRIES 4\r
	52	\r
	53	#define PXEBC_MAX_MENU_NUM 24\r
	54	#define PXEBC_MAX_OFFER_NUM 16\r
	55	\r
	56	#define PXEBC_BOOT_REQUEST_TIMEOUT 1\r
	57	#define PXEBC_BOOT_REQUEST_RETRIES 4\r
	58	\r
	59	#define PXEBC_DHCP4_OVERLOAD_FILE 1\r
	60	#define PXEBC_DHCP4_OVERLOAD_SERVER_NAME 2\r
	61	\r
	62	//\r
	63	// The array index of the DHCP4 option tag interested\r
	64	//\r
	65	#define PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN 0\r
	66	#define PXEBC_DHCP4_TAG_INDEX_VENDOR 1\r
	67	#define PXEBC_DHCP4_TAG_INDEX_OVERLOAD 2\r
	68	#define PXEBC_DHCP4_TAG_INDEX_MSG_TYPE 3\r
	69	#define PXEBC_DHCP4_TAG_INDEX_SERVER_ID 4\r
	70	#define PXEBC_DHCP4_TAG_INDEX_CLASS_ID 5\r
	71	#define PXEBC_DHCP4_TAG_INDEX_BOOTFILE 6\r
	72	#define PXEBC_DHCP4_TAG_INDEX_MAX 7\r
	73	\r
	74	//\r
	75	// The type of DHCP OFFER, arranged by priority, PXE10 has the highest priority.\r
	76	//\r
	77	#define DHCP4_PACKET_TYPE_PXE10 0\r
	78	#define DHCP4_PACKET_TYPE_WFM11A 1\r
	79	#define DHCP4_PACKET_TYPE_BINL 2\r
	80	#define DHCP4_PACKET_TYPE_DHCP_ONLY 3\r
	81	#define DHCP4_PACKET_TYPE_BOOTP 4\r
	82	#define DHCP4_PACKET_TYPE_MAX 5\r
	83	\r
	84	#define BIT(x) (1 << x)\r
	85	#define CTRL(x) (0x1F & (x))\r
	86	\r
	87	//\r
	88	// WfM11a options\r
	89	//\r
	90	#define MTFTP_VENDOR_OPTION_BIT_MAP (BIT (PXEBC_VENDOR_TAG_MTFTP_IP) \| \\r
	91	BIT (PXEBC_VENDOR_TAG_MTFTP_CPORT) \| \\r
	92	BIT (PXEBC_VENDOR_TAG_MTFTP_SPORT) \| \\r
	93	BIT (PXEBC_VENDOR_TAG_MTFTP_TIMEOUT) \| \\r
	94	BIT (PXEBC_VENDOR_TAG_MTFTP_DELAY))\r
	95	//\r
	96	// Discoverty options\r
	97	//\r
	98	#define DISCOVER_VENDOR_OPTION_BIT_MAP (BIT (PXEBC_VENDOR_TAG_DISCOVER_CTRL) \| \\r
	99	BIT (PXEBC_VENDOR_TAG_DISCOVER_MCAST) \| \\r
	100	BIT (PXEBC_VENDOR_TAG_BOOT_SERVERS) \| \\r
	101	BIT (PXEBC_VENDOR_TAG_BOOT_MENU) \| \\r
	102	BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))\r
	103	\r
	104	#define IS_VALID_BOOT_PROMPT(x) \\r
	105	((((x)[0]) & BIT (PXEBC_VENDOR_TAG_MENU_PROMPT)) == BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))\r
	106	\r
	107	#define IS_VALID_BOOT_MENU(x) \\r
	108	((((x)[0]) & BIT (PXEBC_VENDOR_TAG_BOOT_MENU)) == BIT (PXEBC_VENDOR_TAG_BOOT_MENU))\r
	109	\r
	110	#define IS_VALID_MTFTP_VENDOR_OPTION(x) \\r
	111	(((UINT32) ((x)[0]) & MTFTP_VENDOR_OPTION_BIT_MAP) == MTFTP_VENDOR_OPTION_BIT_MAP)\r
	112	\r
	113	#define IS_VALID_DISCOVER_VENDOR_OPTION(x) (((UINT32) ((x)[0]) & DISCOVER_VENDOR_OPTION_BIT_MAP) != 0)\r
	114	\r
	115	#define IS_VALID_CREDENTIAL_VENDOR_OPTION(x) \\r
	116	(((UINT32) ((x)[0]) & BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES)) == BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES))\r
	117	\r
	118	#define IS_VALID_BOOTITEM_VENDOR_OPTION(x) \\r
	119	(((UINT32) ((x)[PXEBC_VENDOR_TAG_BOOT_ITEM / 32]) & BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32)) \\r
	120	== BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32))\r
	121	\r
	122	#define IS_DISABLE_BCAST_DISCOVER(x) (((x) & BIT (0)) == BIT (0))\r
	123	#define IS_DISABLE_MCAST_DISCOVER(x) (((x) & BIT (1)) == BIT (1))\r
	124	#define IS_ENABLE_USE_SERVER_LIST(x) (((x) & BIT (2)) == BIT (2))\r
	125	#define IS_DISABLE_PROMPT_MENU(x) (((x) & BIT (3)) == BIT (3))\r
	126	\r
	127	#define SET_VENDOR_OPTION_BIT_MAP(x, y) (((x)[(y) / 32]) = (UINT32) ((x)[(y) / 32]) \| BIT ((y) % 32))\r
	128	\r
	129	#pragma pack(1)\r
	130	typedef struct {\r
	131	UINT8 ParaList[135];\r
	132	} PXEBC_DHCP4_OPTION_PARA;\r
	133	\r
	134	typedef struct {\r
	135	UINT16 Size;\r
	136	} PXEBC_DHCP4_OPTION_MAX_MESG_SIZE;\r
	137	\r
	138	typedef struct {\r
	139	UINT8 Type;\r
	140	UINT8 MajorVer;\r
	141	UINT8 MinorVer;\r
	142	} PXEBC_DHCP4_OPTION_UNDI;\r
	143	\r
	144	typedef struct {\r
	145	UINT8 Type;\r
	146	} PXEBC_DHCP4_OPTION_MESG;\r
	147	\r
	148	typedef struct {\r
	149	UINT16 Type;\r
	150	} PXEBC_DHCP4_OPTION_ARCH;\r
	151	\r
	152	#define DEFAULT_CLASS_ID_DATA "PXEClient:Arch:xxxxx:UNDI:003000"\r
	153	#define DEFAULT_UNDI_TYPE 1\r
	154	#define DEFAULT_UNDI_MAJOR 3\r
	155	#define DEFAULT_UNDI_MINOR 0\r
	156	\r
	157	typedef struct {\r
	158	UINT8 ClassIdentifier[10];\r
	159	UINT8 ArchitecturePrefix[5];\r
	160	UINT8 ArchitectureType[5];\r
	161	UINT8 Lit3[1];\r
	162	UINT8 InterfaceName[4];\r
	163	UINT8 Lit4[1];\r
	164	UINT8 UndiMajor[3];\r
	165	UINT8 UndiMinor[3];\r
	166	} PXEBC_DHCP4_OPTION_CLID;\r
	167	\r
	168	typedef struct {\r
	169	UINT8 Type;\r
	170	UINT8 Guid[16];\r
	171	} PXEBC_DHCP4_OPTION_UUID;\r
	172	\r
	173	typedef struct {\r
	174	UINT16 Type;\r
	175	UINT16 Layer;\r
	176	} PXEBC_OPTION_BOOT_ITEM;\r
	177	\r
	178	#pragma pack()\r
	179	\r
	180	typedef union {\r
	181	PXEBC_DHCP4_OPTION_PARA *Para;\r
	182	PXEBC_DHCP4_OPTION_UNDI *Undi;\r
	183	PXEBC_DHCP4_OPTION_ARCH *Arch;\r
	184	PXEBC_DHCP4_OPTION_CLID *Clid;\r
	185	PXEBC_DHCP4_OPTION_UUID *Uuid;\r
	186	PXEBC_DHCP4_OPTION_MESG *Mesg;\r
	187	PXEBC_DHCP4_OPTION_MAX_MESG_SIZE *MaxMesgSize;\r
	188	} PXEBC_DHCP4_OPTION_ENTRY;\r
	189	\r
	190	typedef struct {\r
	191	UINT16 Type;\r
	192	UINT8 IpCnt;\r
	193	EFI_IPv4_ADDRESS IpAddr[1];\r
	194	} PXEBC_BOOT_SVR_ENTRY;\r
	195	\r
	196	typedef struct {\r
	197	UINT16 Type;\r
	198	UINT8 DescLen;\r
	199	UINT8 DescStr[1];\r
	200	} PXEBC_BOOT_MENU_ENTRY;\r
	201	\r
	202	typedef struct {\r
	203	UINT8 Timeout;\r
	204	UINT8 Prompt[1];\r
	205	} PXEBC_MENU_PROMPT;\r
	206	\r
	207	typedef struct {\r
	208	UINT32 BitMap[8];\r
	209	EFI_IPv4_ADDRESS MtftpIp;\r
	210	UINT16 MtftpCPort;\r
	211	UINT16 MtftpSPort;\r
	212	UINT8 MtftpTimeout;\r
	213	UINT8 MtftpDelay;\r
	214	UINT8 DiscoverCtrl;\r
	215	EFI_IPv4_ADDRESS DiscoverMcastIp;\r
	216	EFI_IPv4_ADDRESS McastIpBase;\r
	217	UINT16 McastIpBlock;\r
	218	UINT16 McastIpRange;\r
	219	UINT16 BootSrvType;\r
	220	UINT16 BootSrvLayer;\r
	221	PXEBC_BOOT_SVR_ENTRY *BootSvr;\r
	222	UINT8 BootSvrLen;\r
	223	PXEBC_BOOT_MENU_ENTRY *BootMenu;\r
	224	UINT8 BootMenuLen;\r
	225	PXEBC_MENU_PROMPT *MenuPrompt;\r
	226	UINT8 MenuPromptLen;\r
	227	UINT32 *CredType;\r
	228	UINT8 CredTypeLen;\r
	229	} PXEBC_VENDOR_OPTION;\r
	230	\r
	231	#define PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE (OFFSET_OF (EFI_DHCP4_PACKET, Dhcp4) + PXEBC_DHCP4_MAX_PACKET_SIZE)\r
	232	\r
	233	typedef union {\r
	234	EFI_DHCP4_PACKET Offer;\r
	235	EFI_DHCP4_PACKET Ack;\r
	236	UINT8 Buffer[PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE];\r
	237	} PXEBC_DHCP4_PACKET;\r
	238	\r
	239	typedef struct {\r
	240	PXEBC_DHCP4_PACKET Packet;\r
	241	BOOLEAN IsPxeOffer;\r
	242	UINT8 OfferType;\r
	243	EFI_DHCP4_PACKET_OPTION *Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_MAX];\r
	244	PXEBC_VENDOR_OPTION PxeVendorOption;\r
	245	} PXEBC_CACHED_DHCP4_PACKET;\r
	246	\r
	247	#define GET_NEXT_DHCP_OPTION(Opt) \\r
	248	(EFI_DHCP4_PACKET_OPTION ) ((UINT8 ) (Opt) + sizeof (EFI_DHCP4_PACKET_OPTION) + (Opt)->Length - 1)\r
	249	\r
	250	#define GET_OPTION_BUFFER_LEN(Pkt) ((Pkt)->Length - sizeof (EFI_DHCP4_HEADER) - 4)\r
	251	#define IS_PROXY_DHCP_OFFER(Offer) EFI_IP4_EQUAL (&((Offer)->Dhcp4.Header.YourAddr), &mZeroIp4Addr)\r
	252	\r
	253	#define GET_NEXT_BOOT_SVR_ENTRY(Ent) \\r
	254	(PXEBC_BOOT_SVR_ENTRY ) ((UINT8 ) Ent + sizeof ((Ent)) + ((Ent)->IpCnt - 1) sizeof (EFI_IPv4_ADDRESS))\r
	255	\r
	256	\r
	257	/**\r
	258	This function initialize the DHCP4 message instance.\r
	259	\r
	260	This function will pad each item of dhcp4 message packet.\r
	261	\r
	262	@param Seed Pointer to the message instance of the DHCP4 packet.\r
	263	@param Udp4 Pointer to the EFI_UDP4_PROTOCOL instance.\r
	264	\r
	265	**/\r
	266	VOID\r
	267	PxeBcInitSeedPacket (\r
	268	IN EFI_DHCP4_PACKET *Seed,\r
	269	IN EFI_UDP4_PROTOCOL *Udp4\r
	270	);\r
	271	\r
	272	\r
	273	/**\r
	274	Parse the cached dhcp packet.\r
	275	\r
	276	@param CachedPacket Pointer to cached dhcp packet.\r
	277	\r
	278	@retval TRUE Succeed to parse and validation.\r
	279	@retval FALSE Fail to parse or validation.\r
	280	\r
	281	**/\r
	282	BOOLEAN\r
	283	PxeBcParseCachedDhcpPacket (\r
	284	IN PXEBC_CACHED_DHCP4_PACKET *CachedPacket\r
	285	);\r
	286	\r
	287	/**\r
	288	This function is to check the selected proxy offer (include BINL dhcp offer and\r
	289	DHCP_ONLY offer ) and set the flag and copy the DHCP packets to the Pxe base code\r
	290	mode structure.\r
	291	\r
	292	@param Private Pointer to PxeBc private data.\r
	293	\r
	294	@retval EFI_SUCCESS Operational successful.\r
	295	@retval EFI_NO_RESPONSE Offer dhcp service failed.\r
	296	@retval EFI_BUFFER_TOO_SMALL Failed to copy the packet to Pxe base code mode.\r
	297	\r
	298	**/\r
	299	EFI_STATUS\r
	300	PxeBcCheckSelectedOffer (\r
	301	IN PXEBC_PRIVATE_DATA *Private\r
	302	);\r
	303	\r
	304	\r
	305	/**\r
	306	Callback routine.\r
	307	\r
	308	EFI_DHCP4_CALLBACK is provided by the consumer of the EFI DHCPv4 Protocol driver\r
	309	to intercept events that occurred in the configuration process. This structure\r
	310	provides advanced control of each state transition of the DHCP process. The\r
	311	returned status code determines the behavior of the EFI DHCPv4 Protocol driver.\r
	312	There are three possible returned values, which are described in the following\r
	313	table.\r
	314	\r
	315	@param This Pointer to the EFI DHCPv4 Protocol instance that is used to\r
	316	configure this callback function.\r
	317	@param Context Pointer to the context that is initialized by\r
	318	EFI_DHCP4_PROTOCOL.Configure().\r
	319	@param CurrentState The current operational state of the EFI DHCPv4 Protocol\r
	320	driver.\r
	321	@param Dhcp4Event The event that occurs in the current state, which usually means a\r
	322	state transition.\r
	323	@param Packet The DHCP packet that is going to be sent or already received.\r
	324	@param NewPacket The packet that is used to replace the above Packet.\r
	325	\r
	326	@retval EFI_SUCCESS Tells the EFI DHCPv4 Protocol driver to continue the DHCP process.\r
	327	@retval EFI_NOT_READY Only used in the Dhcp4Selecting state. The EFI DHCPv4 Protocol\r
	328	driver will continue to wait for more DHCPOFFER packets until the retry\r
	329	timeout expires.\r
	330	@retval EFI_ABORTED Tells the EFI DHCPv4 Protocol driver to abort the current process and\r
	331	return to the Dhcp4Init or Dhcp4InitReboot state.\r
	332	\r
	333	**/\r
	334	EFI_STATUS\r
	335	EFIAPI\r
	336	PxeBcDhcpCallBack (\r
	337	IN EFI_DHCP4_PROTOCOL * This,\r
	338	IN VOID *Context,\r
	339	IN EFI_DHCP4_STATE CurrentState,\r
	340	IN EFI_DHCP4_EVENT Dhcp4Event,\r
	341	IN EFI_DHCP4_PACKET * Packet OPTIONAL,\r
	342	OUT EFI_DHCP4_PACKET **NewPacket OPTIONAL\r
	343	);\r
	344	\r
	345	/**\r
	346	Switch the Ip4 policy to static.\r
	347	\r
	348	@param[in] Private The pointer to PXEBC_PRIVATE_DATA.\r
	349	\r
	350	@retval EFI_SUCCESS The policy is already configured to static.\r
	351	@retval Others Other error as indicated..\r
	352	\r
	353	**/\r
	354	EFI_STATUS\r
	355	PxeBcSetIp4Policy (\r
	356	IN PXEBC_PRIVATE_DATA *Private\r
	357	);\r
	358	\r
	359	/**\r
	360	Discover the boot of service and initialize the vendor option if exists.\r
	361	\r
	362	@param Private Pointer to PxeBc private data.\r
	363	@param Type PxeBc option boot item type\r
	364	@param Layer PxeBc option boot item layer\r
	365	@param UseBis Use BIS or not\r
	366	@param DestIp Ip address for server\r
	367	@param IpCount The total count of the server ip address\r
	368	@param SrvList Server list\r
	369	@param IsDiscv Discover the vendor or not\r
	370	@param Reply The dhcp4 packet of Pxe reply\r
	371	\r
	372	@retval EFI_SUCCESS Operation succeeds.\r
	373	@retval EFI_OUT_OF_RESOURCES Allocate memory pool failed.\r
	374	@retval EFI_NOT_FOUND There is no vendor option exists.\r
	375	@retval EFI_TIMEOUT Send Pxe Discover time out.\r
	376	\r
	377	**/\r
	378	EFI_STATUS\r
	379	PxeBcDiscvBootService (\r
	380	IN PXEBC_PRIVATE_DATA * Private,\r
	381	IN UINT16 Type,\r
	382	IN UINT16 *Layer,\r
	383	IN BOOLEAN UseBis,\r
	384	IN EFI_IP_ADDRESS * DestIp,\r
	385	IN UINT16 IpCount,\r
	386	IN EFI_PXE_BASE_CODE_SRVLIST * SrvList,\r
	387	IN BOOLEAN IsDiscv,\r
	388	OUT EFI_DHCP4_PACKET * Reply OPTIONAL\r
	389	);\r
	390	\r
	391	\r
	392	/**\r
	393	Initialize the DHCP options and build the option list.\r
	394	\r
	395	@param Private Pointer to PxeBc private data.\r
	396	@param OptList Pointer to a DHCP option list.\r
	397	\r
	398	@param IsDhcpDiscover Discover dhcp option or not.\r
	399	\r
	400	@return The index item number of the option list.\r
	401	\r
	402	**/\r
	403	UINT32\r
	404	PxeBcBuildDhcpOptions (\r
	405	IN PXEBC_PRIVATE_DATA *Private,\r
	406	IN EFI_DHCP4_PACKET_OPTION **OptList,\r
	407	IN BOOLEAN IsDhcpDiscover\r
	408	);\r
	409	\r
	410	\r
	411	/**\r
	412	Create the boot options.\r
	413	\r
	414	@param OptList Pointer to the list of the options\r
	415	@param Type the type of option\r
	416	@param Layer the layer of the boot options\r
	417	@param OptLen length of opotion\r
	418	\r
	419	**/\r
	420	VOID\r
	421	PxeBcCreateBootOptions (\r
	422	IN EFI_DHCP4_PACKET_OPTION *OptList,\r
	423	IN UINT16 Type,\r
	424	IN UINT16 *Layer,\r
	425	OUT UINT32 *OptLen\r
	426	);\r
	427	\r
	428	\r
	429	/**\r
	430	Parse interested dhcp options.\r
	431	\r
	432	@param Buffer Pointer to the dhcp options packet.\r
	433	@param Length The length of the dhcp options.\r
	434	@param OptTag The option OpCode.\r
	435	\r
	436	@return NULL if the buffer length is 0 and OpCode is not\r
	437	DHCP4_TAG_EOP, or the pointer to the buffer.\r
	438	\r
	439	**/\r
	440	EFI_DHCP4_PACKET_OPTION *\r
	441	PxeBcParseExtendOptions (\r
	442	IN UINT8 *Buffer,\r
	443	IN UINT32 Length,\r
	444	IN UINT8 OptTag\r
	445	);\r
	446	\r
	447	\r
	448	/**\r
	449	This function is to parse and check vendor options.\r
	450	\r
	451	@param Dhcp4Option Pointer to dhcp options\r
	452	@param VendorOption Pointer to vendor options\r
	453	\r
	454	@return TRUE if valid for vendor options, or FALSE.\r
	455	\r
	456	**/\r
	457	BOOLEAN\r
	458	PxeBcParseVendorOptions (\r
	459	IN EFI_DHCP4_PACKET_OPTION *Dhcp4Option,\r
	460	IN PXEBC_VENDOR_OPTION *VendorOption\r
	461	);\r
	462	\r
	463	\r
	464	/**\r
	465	Choose the boot prompt.\r
	466	\r
	467	@param Private Pointer to PxeBc private data.\r
	468	\r
	469	@retval EFI_SUCCESS Select boot prompt done.\r
	470	@retval EFI_TIMEOUT Select boot prompt time out.\r
	471	@retval EFI_NOT_FOUND The proxy offer is not Pxe10.\r
	472	@retval EFI_ABORTED User cancel the operation.\r
	473	@retval EFI_NOT_READY Read the input key from the keybroad has not finish.\r
	474	\r
	475	**/\r
	476	EFI_STATUS\r
	477	PxeBcSelectBootPrompt (\r
	478	IN PXEBC_PRIVATE_DATA *Private\r
	479	);\r
	480	\r
	481	\r
	482	/**\r
	483	Select the boot menu.\r
	484	\r
	485	@param Private Pointer to PxeBc private data.\r
	486	@param Type The type of the menu.\r
	487	@param UseDefaultItem Use default item or not.\r
	488	\r
	489	@retval EFI_ABORTED User cancel operation.\r
	490	@retval EFI_SUCCESS Select the boot menu success.\r
	491	@retval EFI_NOT_READY Read the input key from the keybroad has not finish.\r
	492	\r
	493	**/\r
	494	EFI_STATUS\r
	495	PxeBcSelectBootMenu (\r
	496	IN PXEBC_PRIVATE_DATA *Private,\r
	497	OUT UINT16 *Type,\r
	498	IN BOOLEAN UseDefaultItem\r
	499	);\r
	500	\r
	501	#endif\r
	502	\r