/** @file
EFI PXE Base Code Protocol definitions, which is used to access PXE-compatible
devices for network access and network booting.
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@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 ( BSD2_PATENT );
///
/// 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_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
#elif defined (MDE_CPU_RISCV64)
#define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x001B
#elif defined (MDE_CPU_LOONGARCH64)
#define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x0027
#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
