--- /dev/null
+/** @file
+ EFI PXE Base Code Protocol definitions, which is used to access PXE-compatible
+ devices for network access and network booting.
+
+Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ @par Revision Reference:
+ This Protocol is introduced in EFI Specification 1.10.
+
+**/
+#ifndef __PXE_BASE_CODE_PROTOCOL_H__
+#define __PXE_BASE_CODE_PROTOCOL_H__
+
+FILE_LICENCE ( BSD3 );
+
+///
+/// PXE Base Code protocol.
+///
+#define EFI_PXE_BASE_CODE_PROTOCOL_GUID \
+ { \
+ 0x03c4e603, 0xac28, 0x11d3, {0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+ }
+
+typedef struct _EFI_PXE_BASE_CODE_PROTOCOL EFI_PXE_BASE_CODE_PROTOCOL;
+
+///
+/// Protocol defined in EFI1.1.
+///
+typedef EFI_PXE_BASE_CODE_PROTOCOL EFI_PXE_BASE_CODE;
+
+///
+/// Default IP TTL and ToS.
+///
+#define DEFAULT_TTL 16
+#define DEFAULT_ToS 0
+
+///
+/// ICMP error format.
+///
+typedef struct {
+ UINT8 Type;
+ UINT8 Code;
+ UINT16 Checksum;
+ union {
+ UINT32 reserved;
+ UINT32 Mtu;
+ UINT32 Pointer;
+ struct {
+ UINT16 Identifier;
+ UINT16 Sequence;
+ } Echo;
+ } u;
+ UINT8 Data[494];
+} EFI_PXE_BASE_CODE_ICMP_ERROR;
+
+///
+/// TFTP error format.
+///
+typedef struct {
+ UINT8 ErrorCode;
+ CHAR8 ErrorString[127];
+} EFI_PXE_BASE_CODE_TFTP_ERROR;
+
+///
+/// IP Receive Filter definitions.
+///
+#define EFI_PXE_BASE_CODE_MAX_IPCNT 8
+
+///
+/// IP Receive Filter structure.
+///
+typedef struct {
+ UINT8 Filters;
+ UINT8 IpCnt;
+ UINT16 reserved;
+ EFI_IP_ADDRESS IpList[EFI_PXE_BASE_CODE_MAX_IPCNT];
+} EFI_PXE_BASE_CODE_IP_FILTER;
+
+#define EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP 0x0001
+#define EFI_PXE_BASE_CODE_IP_FILTER_BROADCAST 0x0002
+#define EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS 0x0004
+#define EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS_MULTICAST 0x0008
+
+///
+/// ARP cache entries.
+///
+typedef struct {
+ EFI_IP_ADDRESS IpAddr;
+ EFI_MAC_ADDRESS MacAddr;
+} EFI_PXE_BASE_CODE_ARP_ENTRY;
+
+///
+/// ARP route table entries.
+///
+typedef struct {
+ EFI_IP_ADDRESS IpAddr;
+ EFI_IP_ADDRESS SubnetMask;
+ EFI_IP_ADDRESS GwAddr;
+} EFI_PXE_BASE_CODE_ROUTE_ENTRY;
+
+//
+// UDP definitions
+//
+typedef UINT16 EFI_PXE_BASE_CODE_UDP_PORT;
+
+#define EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP 0x0001
+#define EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_PORT 0x0002
+#define EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP 0x0004
+#define EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT 0x0008
+#define EFI_PXE_BASE_CODE_UDP_OPFLAGS_USE_FILTER 0x0010
+#define EFI_PXE_BASE_CODE_UDP_OPFLAGS_MAY_FRAGMENT 0x0020
+
+//
+// Discover() definitions
+//
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_BOOTSTRAP 0
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_MS_WINNT_RIS 1
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_INTEL_LCM 2
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_DOSUNDI 3
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_NEC_ESMPRO 4
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_IBM_WSoD 5
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_IBM_LCCM 6
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_CA_UNICENTER_TNG 7
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_HP_OPENVIEW 8
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_ALTIRIS_9 9
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_ALTIRIS_10 10
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_ALTIRIS_11 11
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_NOT_USED_12 12
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_REDHAT_INSTALL 13
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_REDHAT_BOOT 14
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_REMBO 15
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_BEOBOOT 16
+//
+// 17 through 32767 are reserved
+// 32768 through 65279 are for vendor use
+// 65280 through 65534 are reserved
+//
+#define EFI_PXE_BASE_CODE_BOOT_TYPE_PXETEST 65535
+
+#define EFI_PXE_BASE_CODE_BOOT_LAYER_MASK 0x7FFF
+#define EFI_PXE_BASE_CODE_BOOT_LAYER_INITIAL 0x0000
+
+//
+// PXE Tag definition that identifies the processor
+// and programming environment of the client system.
+// These identifiers are defined by IETF:
+// http://www.ietf.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xml
+//
+#if defined (MDE_CPU_IA32)
+#define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x0006
+#elif defined (MDE_CPU_IPF)
+#define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x0002
+#elif defined (MDE_CPU_X64)
+#define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x0007
+#elif defined (MDE_CPU_ARM)
+#define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x000A
+#elif defined (MDE_CPU_AARCH64)
+#define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x000B
+#endif
+
+
+///
+/// Discover() server list structure.
+///
+typedef struct {
+ UINT16 Type;
+ BOOLEAN AcceptAnyResponse;
+ UINT8 Reserved;
+ EFI_IP_ADDRESS IpAddr;
+} EFI_PXE_BASE_CODE_SRVLIST;
+
+///
+/// Discover() information override structure.
+///
+typedef struct {
+ BOOLEAN UseMCast;
+ BOOLEAN UseBCast;
+ BOOLEAN UseUCast;
+ BOOLEAN MustUseList;
+ EFI_IP_ADDRESS ServerMCastIp;
+ UINT16 IpCnt;
+ EFI_PXE_BASE_CODE_SRVLIST SrvList[1];
+} EFI_PXE_BASE_CODE_DISCOVER_INFO;
+
+///
+/// TFTP opcode definitions.
+///
+typedef enum {
+ EFI_PXE_BASE_CODE_TFTP_FIRST,
+ EFI_PXE_BASE_CODE_TFTP_GET_FILE_SIZE,
+ EFI_PXE_BASE_CODE_TFTP_READ_FILE,
+ EFI_PXE_BASE_CODE_TFTP_WRITE_FILE,
+ EFI_PXE_BASE_CODE_TFTP_READ_DIRECTORY,
+ EFI_PXE_BASE_CODE_MTFTP_GET_FILE_SIZE,
+ EFI_PXE_BASE_CODE_MTFTP_READ_FILE,
+ EFI_PXE_BASE_CODE_MTFTP_READ_DIRECTORY,
+ EFI_PXE_BASE_CODE_MTFTP_LAST
+} EFI_PXE_BASE_CODE_TFTP_OPCODE;
+
+///
+/// MTFTP information. This information is required
+/// to start or join a multicast TFTP session. It is also required to
+/// perform the "get file size" and "read directory" operations of MTFTP.
+///
+typedef struct {
+ EFI_IP_ADDRESS MCastIp;
+ EFI_PXE_BASE_CODE_UDP_PORT CPort;
+ EFI_PXE_BASE_CODE_UDP_PORT SPort;
+ UINT16 ListenTimeout;
+ UINT16 TransmitTimeout;
+} EFI_PXE_BASE_CODE_MTFTP_INFO;
+
+///
+/// DHCPV4 Packet structure.
+///
+typedef struct {
+ UINT8 BootpOpcode;
+ UINT8 BootpHwType;
+ UINT8 BootpHwAddrLen;
+ UINT8 BootpGateHops;
+ UINT32 BootpIdent;
+ UINT16 BootpSeconds;
+ UINT16 BootpFlags;
+ UINT8 BootpCiAddr[4];
+ UINT8 BootpYiAddr[4];
+ UINT8 BootpSiAddr[4];
+ UINT8 BootpGiAddr[4];
+ UINT8 BootpHwAddr[16];
+ UINT8 BootpSrvName[64];
+ UINT8 BootpBootFile[128];
+ UINT32 DhcpMagik;
+ UINT8 DhcpOptions[56];
+} EFI_PXE_BASE_CODE_DHCPV4_PACKET;
+
+///
+/// DHCPV6 Packet structure.
+///
+typedef struct {
+ UINT32 MessageType:8;
+ UINT32 TransactionId:24;
+ UINT8 DhcpOptions[1024];
+} EFI_PXE_BASE_CODE_DHCPV6_PACKET;
+
+///
+/// Packet structure.
+///
+typedef union {
+ UINT8 Raw[1472];
+ EFI_PXE_BASE_CODE_DHCPV4_PACKET Dhcpv4;
+ EFI_PXE_BASE_CODE_DHCPV6_PACKET Dhcpv6;
+} EFI_PXE_BASE_CODE_PACKET;
+
+//
+// PXE Base Code Mode structure
+//
+#define EFI_PXE_BASE_CODE_MAX_ARP_ENTRIES 8
+#define EFI_PXE_BASE_CODE_MAX_ROUTE_ENTRIES 8
+
+///
+/// EFI_PXE_BASE_CODE_MODE.
+/// The data values in this structure are read-only and
+/// are updated by the code that produces the
+/// EFI_PXE_BASE_CODE_PROTOCOL functions.
+///
+typedef struct {
+ BOOLEAN Started;
+ BOOLEAN Ipv6Available;
+ BOOLEAN Ipv6Supported;
+ BOOLEAN UsingIpv6;
+ BOOLEAN BisSupported;
+ BOOLEAN BisDetected;
+ BOOLEAN AutoArp;
+ BOOLEAN SendGUID;
+ BOOLEAN DhcpDiscoverValid;
+ BOOLEAN DhcpAckReceived;
+ BOOLEAN ProxyOfferReceived;
+ BOOLEAN PxeDiscoverValid;
+ BOOLEAN PxeReplyReceived;
+ BOOLEAN PxeBisReplyReceived;
+ BOOLEAN IcmpErrorReceived;
+ BOOLEAN TftpErrorReceived;
+ BOOLEAN MakeCallbacks;
+ UINT8 TTL;
+ UINT8 ToS;
+ EFI_IP_ADDRESS StationIp;
+ EFI_IP_ADDRESS SubnetMask;
+ EFI_PXE_BASE_CODE_PACKET DhcpDiscover;
+ EFI_PXE_BASE_CODE_PACKET DhcpAck;
+ EFI_PXE_BASE_CODE_PACKET ProxyOffer;
+ EFI_PXE_BASE_CODE_PACKET PxeDiscover;
+ EFI_PXE_BASE_CODE_PACKET PxeReply;
+ EFI_PXE_BASE_CODE_PACKET PxeBisReply;
+ EFI_PXE_BASE_CODE_IP_FILTER IpFilter;
+ UINT32 ArpCacheEntries;
+ EFI_PXE_BASE_CODE_ARP_ENTRY ArpCache[EFI_PXE_BASE_CODE_MAX_ARP_ENTRIES];
+ UINT32 RouteTableEntries;
+ EFI_PXE_BASE_CODE_ROUTE_ENTRY RouteTable[EFI_PXE_BASE_CODE_MAX_ROUTE_ENTRIES];
+ EFI_PXE_BASE_CODE_ICMP_ERROR IcmpError;
+ EFI_PXE_BASE_CODE_TFTP_ERROR TftpError;
+} EFI_PXE_BASE_CODE_MODE;
+
+//
+// PXE Base Code Interface Function definitions
+//
+
+/**
+ Enables the use of the PXE Base Code Protocol functions.
+
+ This function enables the use of the PXE Base Code Protocol functions. If the
+ Started field of the EFI_PXE_BASE_CODE_MODE structure is already TRUE, then
+ EFI_ALREADY_STARTED will be returned. If UseIpv6 is TRUE, then IPv6 formatted
+ addresses will be used in this session. If UseIpv6 is FALSE, then IPv4 formatted
+ addresses will be used in this session. If UseIpv6 is TRUE, and the Ipv6Supported
+ field of the EFI_PXE_BASE_CODE_MODE structure is FALSE, then EFI_UNSUPPORTED will
+ be returned. If there is not enough memory or other resources to start the PXE
+ Base Code Protocol, then EFI_OUT_OF_RESOURCES will be returned. Otherwise, the
+ PXE Base Code Protocol will be started, and all of the fields of the EFI_PXE_BASE_CODE_MODE
+ structure will be initialized as follows:
+ StartedSet to TRUE.
+ Ipv6SupportedUnchanged.
+ Ipv6AvailableUnchanged.
+ UsingIpv6Set to UseIpv6.
+ BisSupportedUnchanged.
+ BisDetectedUnchanged.
+ AutoArpSet to TRUE.
+ SendGUIDSet to FALSE.
+ TTLSet to DEFAULT_TTL.
+ ToSSet to DEFAULT_ToS.
+ DhcpCompletedSet to FALSE.
+ ProxyOfferReceivedSet to FALSE.
+ StationIpSet to an address of all zeros.
+ SubnetMaskSet to a subnet mask of all zeros.
+ DhcpDiscoverZero-filled.
+ DhcpAckZero-filled.
+ ProxyOfferZero-filled.
+ PxeDiscoverValidSet to FALSE.
+ PxeDiscoverZero-filled.
+ PxeReplyValidSet to FALSE.
+ PxeReplyZero-filled.
+ PxeBisReplyValidSet to FALSE.
+ PxeBisReplyZero-filled.
+ IpFilterSet the Filters field to 0 and the IpCnt field to 0.
+ ArpCacheEntriesSet to 0.
+ ArpCacheZero-filled.
+ RouteTableEntriesSet to 0.
+ RouteTableZero-filled.
+ IcmpErrorReceivedSet to FALSE.
+ IcmpErrorZero-filled.
+ TftpErroReceivedSet to FALSE.
+ TftpErrorZero-filled.
+ MakeCallbacksSet to TRUE if the PXE Base Code Callback Protocol is available.
+ Set to FALSE if the PXE Base Code Callback Protocol is not available.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param UseIpv6 Specifies the type of IP addresses that are to be used during the session
+ that is being started. Set to TRUE for IPv6 addresses, and FALSE for
+ IPv4 addresses.
+
+ @retval EFI_SUCCESS The PXE Base Code Protocol was started.
+ @retval EFI_DEVICE_ERROR The network device encountered an error during this oper
+ @retval EFI_UNSUPPORTED UseIpv6 is TRUE, but the Ipv6Supported field of the
+ EFI_PXE_BASE_CODE_MODE structure is FALSE.
+ @retval EFI_ALREADY_STARTED The PXE Base Code Protocol is already in the started state.
+ @retval EFI_INVALID_PARAMETER The This parameter is NULL or does not point to a valid
+ EFI_PXE_BASE_CODE_PROTOCOL structure.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate enough memory or other resources to start the
+ PXE Base Code Protocol.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_START)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN BOOLEAN UseIpv6
+ );
+
+/**
+ Disables the use of the PXE Base Code Protocol functions.
+
+ This function stops all activity on the network device. All the resources allocated
+ in Start() are released, the Started field of the EFI_PXE_BASE_CODE_MODE structure is
+ set to FALSE and EFI_SUCCESS is returned. If the Started field of the EFI_PXE_BASE_CODE_MODE
+ structure is already FALSE, then EFI_NOT_STARTED will be returned.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+
+ @retval EFI_SUCCESS The PXE Base Code Protocol was stopped.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is already in the stopped state.
+ @retval EFI_INVALID_PARAMETER The This parameter is NULL or does not point to a valid
+ EFI_PXE_BASE_CODE_PROTOCOL structure.
+ @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_STOP)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This
+ );
+
+/**
+ Attempts to complete a DHCPv4 D.O.R.A. (discover / offer / request / acknowledge) or DHCPv6
+ S.A.R.R (solicit / advertise / request / reply) sequence.
+
+ This function attempts to complete the DHCP sequence. If this sequence is completed,
+ then EFI_SUCCESS is returned, and the DhcpCompleted, ProxyOfferReceived, StationIp,
+ SubnetMask, DhcpDiscover, DhcpAck, and ProxyOffer fields of the EFI_PXE_BASE_CODE_MODE
+ structure are filled in.
+ If SortOffers is TRUE, then the cached DHCP offer packets will be sorted before
+ they are tried. If SortOffers is FALSE, then the cached DHCP offer packets will
+ be tried in the order in which they are received. Please see the Preboot Execution
+ Environment (PXE) Specification for additional details on the implementation of DHCP.
+ This function can take at least 31 seconds to timeout and return control to the
+ caller. If the DHCP sequence does not complete, then EFI_TIMEOUT will be returned.
+ If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,
+ then the DHCP sequence will be stopped and EFI_ABORTED will be returned.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param SortOffers TRUE if the offers received should be sorted. Set to FALSE to try the
+ offers in the order that they are received.
+
+ @retval EFI_SUCCESS Valid DHCP has completed.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER The This parameter is NULL or does not point to a valid
+ EFI_PXE_BASE_CODE_PROTOCOL structure.
+ @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate enough memory to complete the DHCP Protocol.
+ @retval EFI_ABORTED The callback function aborted the DHCP Protocol.
+ @retval EFI_TIMEOUT The DHCP Protocol timed out.
+ @retval EFI_ICMP_ERROR An ICMP error packet was received during the DHCP session.
+ @retval EFI_NO_RESPONSE Valid PXE offer was not received.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_DHCP)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN BOOLEAN SortOffers
+ );
+
+/**
+ Attempts to complete the PXE Boot Server and/or boot image discovery sequence.
+
+ This function attempts to complete the PXE Boot Server and/or boot image discovery
+ sequence. If this sequence is completed, then EFI_SUCCESS is returned, and the
+ PxeDiscoverValid, PxeDiscover, PxeReplyReceived, and PxeReply fields of the
+ EFI_PXE_BASE_CODE_MODE structure are filled in. If UseBis is TRUE, then the
+ PxeBisReplyReceived and PxeBisReply fields of the EFI_PXE_BASE_CODE_MODE structure
+ will also be filled in. If UseBis is FALSE, then PxeBisReplyValid will be set to FALSE.
+ In the structure referenced by parameter Info, the PXE Boot Server list, SrvList[],
+ has two uses: It is the Boot Server IP address list used for unicast discovery
+ (if the UseUCast field is TRUE), and it is the list used for Boot Server verification
+ (if the MustUseList field is TRUE). Also, if the MustUseList field in that structure
+ is TRUE and the AcceptAnyResponse field in the SrvList[] array is TRUE, any Boot
+ Server reply of that type will be accepted. If the AcceptAnyResponse field is
+ FALSE, only responses from Boot Servers with matching IP addresses will be accepted.
+ This function can take at least 10 seconds to timeout and return control to the
+ caller. If the Discovery sequence does not complete, then EFI_TIMEOUT will be
+ returned. Please see the Preboot Execution Environment (PXE) Specification for
+ additional details on the implementation of the Discovery sequence.
+ If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,
+ then the Discovery sequence is stopped and EFI_ABORTED will be returned.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param Type The type of bootstrap to perform.
+ @param Layer The pointer to the boot server layer number to discover, which must be
+ PXE_BOOT_LAYER_INITIAL when a new server type is being
+ discovered.
+ @param UseBis TRUE if Boot Integrity Services are to be used. FALSE otherwise.
+ @param Info The pointer to a data structure that contains additional information on the
+ type of discovery operation that is to be performed.
+
+ @retval EFI_SUCCESS The Discovery sequence has been completed.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+ @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate enough memory to complete Discovery.
+ @retval EFI_ABORTED The callback function aborted the Discovery sequence.
+ @retval EFI_TIMEOUT The Discovery sequence timed out.
+ @retval EFI_ICMP_ERROR An ICMP error packet was received during the PXE discovery
+ session.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_DISCOVER)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN UINT16 Type,
+ IN UINT16 *Layer,
+ IN BOOLEAN UseBis,
+ IN EFI_PXE_BASE_CODE_DISCOVER_INFO *Info OPTIONAL
+ );
+
+/**
+ Used to perform TFTP and MTFTP services.
+
+ This function is used to perform TFTP and MTFTP services. This includes the
+ TFTP operations to get the size of a file, read a directory, read a file, and
+ write a file. It also includes the MTFTP operations to get the size of a file,
+ read a directory, and read a file. The type of operation is specified by Operation.
+ If the callback function that is invoked during the TFTP/MTFTP operation does
+ not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED will
+ be returned.
+ For read operations, the return data will be placed in the buffer specified by
+ BufferPtr. If BufferSize is too small to contain the entire downloaded file,
+ then EFI_BUFFER_TOO_SMALL will be returned and BufferSize will be set to zero
+ or the size of the requested file (the size of the requested file is only returned
+ if the TFTP server supports TFTP options). If BufferSize is large enough for the
+ read operation, then BufferSize will be set to the size of the downloaded file,
+ and EFI_SUCCESS will be returned. Applications using the PxeBc.Mtftp() services
+ should use the get-file-size operations to determine the size of the downloaded
+ file prior to using the read-file operations--especially when downloading large
+ (greater than 64 MB) files--instead of making two calls to the read-file operation.
+ Following this recommendation will save time if the file is larger than expected
+ and the TFTP server does not support TFTP option extensions. Without TFTP option
+ extension support, the client has to download the entire file, counting and discarding
+ the received packets, to determine the file size.
+ For write operations, the data to be sent is in the buffer specified by BufferPtr.
+ BufferSize specifies the number of bytes to send. If the write operation completes
+ successfully, then EFI_SUCCESS will be returned.
+ For TFTP "get file size" operations, the size of the requested file or directory
+ is returned in BufferSize, and EFI_SUCCESS will be returned. If the TFTP server
+ does not support options, the file will be downloaded into a bit bucket and the
+ length of the downloaded file will be returned. For MTFTP "get file size" operations,
+ if the MTFTP server does not support the "get file size" option, EFI_UNSUPPORTED
+ will be returned.
+ This function can take up to 10 seconds to timeout and return control to the caller.
+ If the TFTP sequence does not complete, EFI_TIMEOUT will be returned.
+ If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,
+ then the TFTP sequence is stopped and EFI_ABORTED will be returned.
+ The format of the data returned from a TFTP read directory operation is a null-terminated
+ filename followed by a null-terminated information string, of the form
+ "size year-month-day hour:minute:second" (i.e. %d %d-%d-%d %d:%d:%f - note that
+ the seconds field can be a decimal number), where the date and time are UTC. For
+ an MTFTP read directory command, there is additionally a null-terminated multicast
+ IP address preceding the filename of the form %d.%d.%d.%d for IP v4. The final
+ entry is itself null-terminated, so that the final information string is terminated
+ with two null octets.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param Operation The type of operation to perform.
+ @param BufferPtr A pointer to the data buffer.
+ @param Overwrite Only used on write file operations. TRUE if a file on a remote server can
+ be overwritten.
+ @param BufferSize For get-file-size operations, *BufferSize returns the size of the
+ requested file.
+ @param BlockSize The requested block size to be used during a TFTP transfer.
+ @param ServerIp The TFTP / MTFTP server IP address.
+ @param Filename A Null-terminated ASCII string that specifies a directory name or a file
+ name.
+ @param Info The pointer to the MTFTP information.
+ @param DontUseBuffer Set to FALSE for normal TFTP and MTFTP read file operation.
+
+ @retval EFI_SUCCESS The TFTP/MTFTP operation was completed.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+ @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.
+ @retval EFI_BUFFER_TOO_SMALL The buffer is not large enough to complete the read operation.
+ @retval EFI_ABORTED The callback function aborted the TFTP/MTFTP operation.
+ @retval EFI_TIMEOUT The TFTP/MTFTP operation timed out.
+ @retval EFI_ICMP_ERROR An ICMP error packet was received during the MTFTP session.
+ @retval EFI_TFTP_ERROR A TFTP error packet was received during the MTFTP session.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_MTFTP)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN EFI_PXE_BASE_CODE_TFTP_OPCODE Operation,
+ IN OUT VOID *BufferPtr OPTIONAL,
+ IN BOOLEAN Overwrite,
+ IN OUT UINT64 *BufferSize,
+ IN UINTN *BlockSize OPTIONAL,
+ IN EFI_IP_ADDRESS *ServerIp,
+ IN UINT8 *Filename OPTIONAL,
+ IN EFI_PXE_BASE_CODE_MTFTP_INFO *Info OPTIONAL,
+ IN BOOLEAN DontUseBuffer
+ );
+
+/**
+ Writes a UDP packet to the network interface.
+
+ This function writes a UDP packet specified by the (optional HeaderPtr and)
+ BufferPtr parameters to the network interface. The UDP header is automatically
+ built by this routine. It uses the parameters OpFlags, DestIp, DestPort, GatewayIp,
+ SrcIp, and SrcPort to build this header. If the packet is successfully built and
+ transmitted through the network interface, then EFI_SUCCESS will be returned.
+ If a timeout occurs during the transmission of the packet, then EFI_TIMEOUT will
+ be returned. If an ICMP error occurs during the transmission of the packet, then
+ the IcmpErrorReceived field is set to TRUE, the IcmpError field is filled in and
+ EFI_ICMP_ERROR will be returned. If the Callback Protocol does not return
+ EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED will be returned.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param OpFlags The UDP operation flags.
+ @param DestIp The destination IP address.
+ @param DestPort The destination UDP port number.
+ @param GatewayIp The gateway IP address.
+ @param SrcIp The source IP address.
+ @param SrcPort The source UDP port number.
+ @param HeaderSize An optional field which may be set to the length of a header at
+ HeaderPtr to be prefixed to the data at BufferPtr.
+ @param HeaderPtr If HeaderSize is not NULL, a pointer to a header to be prefixed to the
+ data at BufferPtr.
+ @param BufferSize A pointer to the size of the data at BufferPtr.
+ @param BufferPtr A pointer to the data to be written.
+
+ @retval EFI_SUCCESS The UDP Write operation was completed.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+ @retval EFI_BAD_BUFFER_SIZE The buffer is too long to be transmitted.
+ @retval EFI_ABORTED The callback function aborted the UDP Write operation.
+ @retval EFI_TIMEOUT The UDP Write operation timed out.
+ @retval EFI_ICMP_ERROR An ICMP error packet was received during the UDP write session.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_UDP_WRITE)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN UINT16 OpFlags,
+ IN EFI_IP_ADDRESS *DestIp,
+ IN EFI_PXE_BASE_CODE_UDP_PORT *DestPort,
+ IN EFI_IP_ADDRESS *GatewayIp, OPTIONAL
+ IN EFI_IP_ADDRESS *SrcIp, OPTIONAL
+ IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort, OPTIONAL
+ IN UINTN *HeaderSize, OPTIONAL
+ IN VOID *HeaderPtr, OPTIONAL
+ IN UINTN *BufferSize,
+ IN VOID *BufferPtr
+ );
+
+/**
+ Reads a UDP packet from the network interface.
+
+ This function reads a UDP packet from a network interface. The data contents
+ are returned in (the optional HeaderPtr and) BufferPtr, and the size of the
+ buffer received is returned in BufferSize. If the input BufferSize is smaller
+ than the UDP packet received (less optional HeaderSize), it will be set to the
+ required size, and EFI_BUFFER_TOO_SMALL will be returned. In this case, the
+ contents of BufferPtr are undefined, and the packet is lost. If a UDP packet is
+ successfully received, then EFI_SUCCESS will be returned, and the information
+ from the UDP header will be returned in DestIp, DestPort, SrcIp, and SrcPort if
+ they are not NULL.
+ Depending on the values of OpFlags and the DestIp, DestPort, SrcIp, and SrcPort
+ input values, different types of UDP packet receive filtering will be performed.
+ The following tables summarize these receive filter operations.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param OpFlags The UDP operation flags.
+ @param DestIp The destination IP address.
+ @param DestPort The destination UDP port number.
+ @param SrcIp The source IP address.
+ @param SrcPort The source UDP port number.
+ @param HeaderSize An optional field which may be set to the length of a header at
+ HeaderPtr to be prefixed to the data at BufferPtr.
+ @param HeaderPtr If HeaderSize is not NULL, a pointer to a header to be prefixed to the
+ data at BufferPtr.
+ @param BufferSize A pointer to the size of the data at BufferPtr.
+ @param BufferPtr A pointer to the data to be read.
+
+ @retval EFI_SUCCESS The UDP Read operation was completed.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+ @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.
+ @retval EFI_BUFFER_TOO_SMALL The packet is larger than Buffer can hold.
+ @retval EFI_ABORTED The callback function aborted the UDP Read operation.
+ @retval EFI_TIMEOUT The UDP Read operation timed out.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_UDP_READ)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN UINT16 OpFlags,
+ IN OUT EFI_IP_ADDRESS *DestIp, OPTIONAL
+ IN OUT EFI_PXE_BASE_CODE_UDP_PORT *DestPort, OPTIONAL
+ IN OUT EFI_IP_ADDRESS *SrcIp, OPTIONAL
+ IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPort, OPTIONAL
+ IN UINTN *HeaderSize, OPTIONAL
+ IN VOID *HeaderPtr, OPTIONAL
+ IN OUT UINTN *BufferSize,
+ IN VOID *BufferPtr
+ );
+
+/**
+ Updates the IP receive filters of a network device and enables software filtering.
+
+ The NewFilter field is used to modify the network device's current IP receive
+ filter settings and to enable a software filter. This function updates the IpFilter
+ field of the EFI_PXE_BASE_CODE_MODE structure with the contents of NewIpFilter.
+ The software filter is used when the USE_FILTER in OpFlags is set to UdpRead().
+ The current hardware filter remains in effect no matter what the settings of OpFlags
+ are, so that the meaning of ANY_DEST_IP set in OpFlags to UdpRead() is from those
+ packets whose reception is enabled in hardware - physical NIC address (unicast),
+ broadcast address, logical address or addresses (multicast), or all (promiscuous).
+ UdpRead() does not modify the IP filter settings.
+ Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP receive
+ filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP.
+ If an application or driver wishes to preserve the IP receive filter settings,
+ it will have to preserve the IP receive filter settings before these calls, and
+ use SetIpFilter() to restore them after the calls. If incompatible filtering is
+ requested (for example, PROMISCUOUS with anything else), or if the device does not
+ support a requested filter setting and it cannot be accommodated in software
+ (for example, PROMISCUOUS not supported), EFI_INVALID_PARAMETER will be returned.
+ The IPlist field is used to enable IPs other than the StationIP. They may be
+ multicast or unicast. If IPcnt is set as well as EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP,
+ then both the StationIP and the IPs from the IPlist will be used.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param NewFilter The pointer to the new set of IP receive filters.
+
+ @retval EFI_SUCCESS The IP receive filter settings were updated.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_SET_IP_FILTER)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN EFI_PXE_BASE_CODE_IP_FILTER *NewFilter
+ );
+
+/**
+ Uses the ARP protocol to resolve a MAC address.
+
+ This function uses the ARP protocol to resolve a MAC address. The UsingIpv6 field
+ of the EFI_PXE_BASE_CODE_MODE structure is used to determine if IPv4 or IPv6
+ addresses are being used. The IP address specified by IpAddr is used to resolve
+ a MAC address. If the ARP protocol succeeds in resolving the specified address,
+ then the ArpCacheEntries and ArpCache fields of the EFI_PXE_BASE_CODE_MODE structure
+ are updated, and EFI_SUCCESS is returned. If MacAddr is not NULL, the resolved
+ MAC address is placed there as well.
+ If the PXE Base Code protocol is in the stopped state, then EFI_NOT_STARTED is
+ returned. If the ARP protocol encounters a timeout condition while attempting
+ to resolve an address, then EFI_TIMEOUT is returned. If the Callback Protocol
+ does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED is
+ returned.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param IpAddr The pointer to the IP address that is used to resolve a MAC address.
+ @param MacAddr If not NULL, a pointer to the MAC address that was resolved with the
+ ARP protocol.
+
+ @retval EFI_SUCCESS The IP or MAC address was resolved.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+ @retval EFI_DEVICE_ERROR The network device encountered an error during this operation.
+ @retval EFI_ABORTED The callback function aborted the ARP Protocol.
+ @retval EFI_TIMEOUT The ARP Protocol encountered a timeout condition.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_ARP)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN EFI_IP_ADDRESS *IpAddr,
+ IN EFI_MAC_ADDRESS *MacAddr OPTIONAL
+ );
+
+/**
+ Updates the parameters that affect the operation of the PXE Base Code Protocol.
+
+ This function sets parameters that affect the operation of the PXE Base Code Protocol.
+ The parameter specified by NewAutoArp is used to control the generation of ARP
+ protocol packets. If NewAutoArp is TRUE, then ARP Protocol packets will be generated
+ as required by the PXE Base Code Protocol. If NewAutoArp is FALSE, then no ARP
+ Protocol packets will be generated. In this case, the only mappings that are
+ available are those stored in the ArpCache of the EFI_PXE_BASE_CODE_MODE structure.
+ If there are not enough mappings in the ArpCache to perform a PXE Base Code Protocol
+ service, then the service will fail. This function updates the AutoArp field of
+ the EFI_PXE_BASE_CODE_MODE structure to NewAutoArp.
+ The SetParameters() call must be invoked after a Callback Protocol is installed
+ to enable the use of callbacks.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param NewAutoArp If not NULL, a pointer to a value that specifies whether to replace the
+ current value of AutoARP.
+ @param NewSendGUID If not NULL, a pointer to a value that specifies whether to replace the
+ current value of SendGUID.
+ @param NewTTL If not NULL, a pointer to be used in place of the current value of TTL,
+ the "time to live" field of the IP header.
+ @param NewToS If not NULL, a pointer to be used in place of the current value of ToS,
+ the "type of service" field of the IP header.
+ @param NewMakeCallback If not NULL, a pointer to a value that specifies whether to replace the
+ current value of the MakeCallback field of the Mode structure.
+
+ @retval EFI_SUCCESS The new parameters values were updated.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_SET_PARAMETERS)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN BOOLEAN *NewAutoArp, OPTIONAL
+ IN BOOLEAN *NewSendGUID, OPTIONAL
+ IN UINT8 *NewTTL, OPTIONAL
+ IN UINT8 *NewToS, OPTIONAL
+ IN BOOLEAN *NewMakeCallback OPTIONAL
+ );
+
+/**
+ Updates the station IP address and/or subnet mask values of a network device.
+
+ This function updates the station IP address and/or subnet mask values of a network
+ device.
+ The NewStationIp field is used to modify the network device's current IP address.
+ If NewStationIP is NULL, then the current IP address will not be modified. Otherwise,
+ this function updates the StationIp field of the EFI_PXE_BASE_CODE_MODE structure
+ with NewStationIp.
+ The NewSubnetMask field is used to modify the network device's current subnet
+ mask. If NewSubnetMask is NULL, then the current subnet mask will not be modified.
+ Otherwise, this function updates the SubnetMask field of the EFI_PXE_BASE_CODE_MODE
+ structure with NewSubnetMask.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param NewStationIp The pointer to the new IP address to be used by the network device.
+ @param NewSubnetMask The pointer to the new subnet mask to be used by the network device.
+
+ @retval EFI_SUCCESS The new station IP address and/or subnet mask were updated.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER One or more parameters are invalid.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_SET_STATION_IP)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ IN EFI_IP_ADDRESS *NewStationIp, OPTIONAL
+ IN EFI_IP_ADDRESS *NewSubnetMask OPTIONAL
+ );
+
+/**
+ Updates the contents of the cached DHCP and Discover packets.
+
+ The pointers to the new packets are used to update the contents of the cached
+ packets in the EFI_PXE_BASE_CODE_MODE structure.
+
+ @param This The pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.
+ @param NewDhcpDiscoverValid The pointer to a value that will replace the current
+ DhcpDiscoverValid field.
+ @param NewDhcpAckReceived The pointer to a value that will replace the current
+ DhcpAckReceived field.
+ @param NewProxyOfferReceived The pointer to a value that will replace the current
+ ProxyOfferReceived field.
+ @param NewPxeDiscoverValid The pointer to a value that will replace the current
+ ProxyOfferReceived field.
+ @param NewPxeReplyReceived The pointer to a value that will replace the current
+ PxeReplyReceived field.
+ @param NewPxeBisReplyReceived The pointer to a value that will replace the current
+ PxeBisReplyReceived field.
+ @param NewDhcpDiscover The pointer to the new cached DHCP Discover packet contents.
+ @param NewDhcpAck The pointer to the new cached DHCP Ack packet contents.
+ @param NewProxyOffer The pointer to the new cached Proxy Offer packet contents.
+ @param NewPxeDiscover The pointer to the new cached PXE Discover packet contents.
+ @param NewPxeReply The pointer to the new cached PXE Reply packet contents.
+ @param NewPxeBisReply The pointer to the new cached PXE BIS Reply packet contents.
+
+ @retval EFI_SUCCESS The cached packet contents were updated.
+ @retval EFI_NOT_STARTED The PXE Base Code Protocol is in the stopped state.
+ @retval EFI_INVALID_PARAMETER This is NULL or not point to a valid EFI_PXE_BASE_CODE_PROTOCOL structure.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_PXE_BASE_CODE_SET_PACKETS)(
+ IN EFI_PXE_BASE_CODE_PROTOCOL *This,
+ BOOLEAN *NewDhcpDiscoverValid, OPTIONAL
+ BOOLEAN *NewDhcpAckReceived, OPTIONAL
+ BOOLEAN *NewProxyOfferReceived, OPTIONAL
+ BOOLEAN *NewPxeDiscoverValid, OPTIONAL
+ BOOLEAN *NewPxeReplyReceived, OPTIONAL
+ BOOLEAN *NewPxeBisReplyReceived, OPTIONAL
+ IN EFI_PXE_BASE_CODE_PACKET *NewDhcpDiscover, OPTIONAL
+ IN EFI_PXE_BASE_CODE_PACKET *NewDhcpAck, OPTIONAL
+ IN EFI_PXE_BASE_CODE_PACKET *NewProxyOffer, OPTIONAL
+ IN EFI_PXE_BASE_CODE_PACKET *NewPxeDiscover, OPTIONAL
+ IN EFI_PXE_BASE_CODE_PACKET *NewPxeReply, OPTIONAL
+ IN EFI_PXE_BASE_CODE_PACKET *NewPxeBisReply OPTIONAL
+ );
+
+//
+// PXE Base Code Protocol structure
+//
+#define EFI_PXE_BASE_CODE_PROTOCOL_REVISION 0x00010000
+
+//
+// Revision defined in EFI1.1
+//
+#define EFI_PXE_BASE_CODE_INTERFACE_REVISION EFI_PXE_BASE_CODE_PROTOCOL_REVISION
+
+///
+/// The EFI_PXE_BASE_CODE_PROTOCOL is used to control PXE-compatible devices.
+/// An EFI_PXE_BASE_CODE_PROTOCOL will be layered on top of an
+/// EFI_MANAGED_NETWORK_PROTOCOL protocol in order to perform packet level transactions.
+/// The EFI_PXE_BASE_CODE_PROTOCOL handle also supports the
+/// EFI_LOAD_FILE_PROTOCOL protocol. This provides a clean way to obtain control from the
+/// boot manager if the boot path is from the remote device.
+///
+struct _EFI_PXE_BASE_CODE_PROTOCOL {
+ ///
+ /// The revision of the EFI_PXE_BASE_CODE_PROTOCOL. All future revisions must
+ /// be backwards compatible. If a future version is not backwards compatible
+ /// it is not the same GUID.
+ ///
+ UINT64 Revision;
+ EFI_PXE_BASE_CODE_START Start;
+ EFI_PXE_BASE_CODE_STOP Stop;
+ EFI_PXE_BASE_CODE_DHCP Dhcp;
+ EFI_PXE_BASE_CODE_DISCOVER Discover;
+ EFI_PXE_BASE_CODE_MTFTP Mtftp;
+ EFI_PXE_BASE_CODE_UDP_WRITE UdpWrite;
+ EFI_PXE_BASE_CODE_UDP_READ UdpRead;
+ EFI_PXE_BASE_CODE_SET_IP_FILTER SetIpFilter;
+ EFI_PXE_BASE_CODE_ARP Arp;
+ EFI_PXE_BASE_CODE_SET_PARAMETERS SetParameters;
+ EFI_PXE_BASE_CODE_SET_STATION_IP SetStationIp;
+ EFI_PXE_BASE_CODE_SET_PACKETS SetPackets;
+ ///
+ /// The pointer to the EFI_PXE_BASE_CODE_MODE data for this device.
+ ///
+ EFI_PXE_BASE_CODE_MODE *Mode;
+};
+
+extern EFI_GUID gEfiPxeBaseCodeProtocolGuid;
+
+#endif
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