icmp.h File Reference

ICMP (Internet Control Message Protocol) More...

#include "core/net.h"

Go to the source code of this file.

Typedefs
struct {
char_t   type
uint32_t   dataStart
uint32_t   dataLength
uint8_t   nameLength
char_t   name []
uint8_t   tokenLen: 4
uint8_t   type: 2
uint8_t   version: 2
uint8_t   code
uint16_t   mid
uint8_t   token []
union {
uint8_t   b [6]
uint16_t   w [3]
}
uint16_t   srcPort
uint16_t   destPort
uint32_t   seqNum
uint32_t   ackNum
uint8_t   reserved1: 4
uint8_t   dataOffset: 4
uint8_t   flags: 6
uint8_t   reserved2: 2
uint16_t   window
uint16_t   checksum
uint16_t   urgentPointer
uint8_t   options []
uint16_t   length
uint8_t   data []
uint8_t   op
uint8_t   htype
uint8_t   hlen
uint8_t   hops
uint32_t   xid
uint16_t   secs
uint16_t   flags
Ipv4Addr   ciaddr
Ipv4Addr   yiaddr
Ipv4Addr   siaddr
Ipv4Addr   giaddr
MacAddr   chaddr
uint8_t   unused [10]
uint8_t   sname [64]
uint8_t   file [128]
uint32_t   magicCookie
uint16_t   type
uint16_t   hardwareType
uint32_t   time
MacAddr   linkLayerAddr
uint16_t   id
uint8_t   rd: 1
uint8_t   tc: 1
uint8_t   aa: 1
uint8_t   opcode: 4
uint8_t   qr: 1
uint8_t   rcode: 4
uint8_t   z: 3
uint8_t   ra: 1
uint16_t   qdcount
uint16_t   ancount
uint16_t   nscount
uint16_t   arcount
uint8_t   questions []
uint16_t   controlWord
uint16_t   byteCount
uint8_t   bLength
uint8_t   bDescriptorType
uint16_t   bcdUsb
uint8_t   bDeviceClass
uint8_t   bDeviceSubClass
uint8_t   bDeviceProtocol
uint8_t   bMaxPacketSize0
uint16_t   idVendor
uint16_t   idProduct
uint16_t   bcdDevice
uint8_t   iManufacturer
uint8_t   iProduct
uint8_t   iSerialNumber
uint8_t   bNumConfigurations
uint8_t   maxRespTime
Ipv4Addr   groupAddr
uint16_t   hrd
uint16_t   pro
uint8_t   hln
uint8_t   pln
uint16_t   op
MacAddr   sha
Ipv4Addr   spa
MacAddr   tha
Ipv4Addr   tpa
uint8_t   length
uint8_t   value []
uint16_t   first
uint16_t   last
uint16_t   next
union {
uint8_t   b [16]
uint16_t   w [8]
uint32_t   dw [4]
}
uint16_t   maxRespDelay
uint16_t   reserved
Ipv6Addr   multicastAddr
uint32_t   reserved
uint16_t   pvid
uint8_t   autoNegSupportStatus
uint16_t   pmdAutoNegAdvCap
uint16_t   operationalMauType
uint16_t   capabilities
uint8_t   deviceType
uint8_t   lengthH: 1
uint8_t   lengthL
uint8_t   t: 1
uint8_t   c: 1
union {
int32_t   integer
uint8_t   octetString [1]
uint8_t   oid [1]
uint8_t   ipAddr [4]
uint32_t   counter32
uint32_t   gauge32
uint32_t   unsigned32
uint32_t   timeTicks
uint64_t   counter64
}
uint16_t   transactionId
uint16_t   protocolId
uint8_t   unitId
uint8_t   pdu []
uint8_t   retain: 1
uint8_t   qos: 2
uint8_t   dup: 1
union {
uint8_t   all
struct {
uint8_t   topicIdType: 2
uint8_t   cleanSession: 1
uint8_t   will: 1
uint8_t   retain: 1
uint8_t   qos: 2
uint8_t   dup: 1
}
}
uint8_t   b: 1
uint8_t   identifier
uint8_t   valueSize
Ipv4Addr   srcIpAddr
Ipv4Addr   destIpAddr
Eui64   interfaceId
uint16_t   mru
uint8_t   peerIdLength
uint8_t   peerId []
uint32_t   seconds
uint32_t   fraction
uint16_t   opcode
char_t   filename []
uint8_t   reserved: 3
uint8_t   fin: 1
uint8_t   payloadLen: 7
uint8_t   mask: 1
uint8_t   extPayloadLen []
uint32_t   length
uint8_t   payload []
uint8_t   protocolVersionId
uint8_t   bpduType
StpBridgeId   rootId
uint32_t   rootPathCost
StpBridgeId   bridgeId
uint16_t   portId
uint16_t   messageAge
uint16_t   maxAge
uint16_t   helloTime
uint16_t   forwardDelay
uint8_t   version1Length
uint16_t   priority
MacAddr   addr
}	IcmpHeader
	ICMP header. More...
struct {
char_t   type
uint32_t   dataStart
uint32_t   dataLength
uint8_t   nameLength
uint8_t   length: 4
uint8_t   delta: 4
union {
uint8_t   b [8]
uint16_t   w [4]
uint32_t   dw [2]
}
uint8_t   kind
uint8_t   value []
uint8_t   code
uint16_t   type
uint32_t   enterpriseNumber
uint8_t   identifier []
uint16_t   qtype
uint16_t   qclass
uint16_t   statusWord
uint16_t   byteCount
uint8_t   bLength
uint8_t   bDescriptorType
uint16_t   wTotalLength
uint8_t   bNumInterfaces
uint8_t   bConfigurationValue
uint8_t   iConfiguration
uint8_t   bmAttributes
uint8_t   bMaxPower
uint8_t   type
uint16_t   checksum
uint8_t   parameter
uint8_t   unused [3]
uint8_t   data []
uint32_t   parameter
uint8_t   nextHeader
uint8_t   hdrExtLen
uint8_t   options []
uint8_t   curHopLimit
uint8_t   reserved: 2
uint8_t   p: 1
uint8_t   prf: 2
uint8_t   h: 1
uint8_t   o: 1
uint8_t   m: 1
uint16_t   routerLifetime
uint32_t   reachableTime
uint32_t   retransTimer
uint8_t   flags
uint16_t   ppvid
uint8_t   mdiPowerSupport
uint8_t   psePowerPair
uint8_t   powerClass
uint8_t   appType
uint8_t   vlanIdH: 5
uint8_t   x: 1
uint8_t   t: 1
uint8_t   u: 1
uint8_t   l2PriorityH: 1
uint8_t   vlanIdL: 7
uint8_t   dscpValue: 6
uint8_t   l2PriorityL: 2
uint8_t   chassisIdSubtype
uint8_t   chassisId []
uint8_t   functionCode
uint16_t   startingAddr
uint16_t   quantityOfCoils
uint16_t   length
uint8_t   msgType
uint16_t   flags
Ipv4Addr   addr
uint8_t   valueSize
uint16_t   protocol
uint32_t   accm
uint8_t   msgLength
uint8_t   message []
uint8_t   mode: 3
uint8_t   vn: 3
uint8_t   li: 2
uint8_t   stratum
uint8_t   poll
int8_t   precision
uint32_t   rootDelay
uint32_t   rootDispersion
uint32_t   referenceId
NtpTimestamp   referenceTimestamp
NtpTimestamp   originateTimestamp
NtpTimestamp   receiveTimestamp
NtpTimestamp   transmitTimestamp
uint16_t   opcode
char_t   filename []
uint16_t   value []
uint16_t   group
uint8_t   keyExchange []
uint32_t   id
uint32_t   dataLen
}	IcmpErrorMessage
	ICMP Error message. More...
struct {
uint32_t   totalSize
ResRootEntry   rootEntry
MacAddr   destAddr
MacAddr   srcAddr
uint16_t   type
uint8_t   data []
uint16_t   hardwareType
MacAddr   linkLayerAddr
uint16_t   rtype
uint16_t   rclass
uint32_t   ttl
uint16_t   rdlength
uint8_t   rdata []
uint8_t   bLength
uint8_t   bDescriptorType
uint8_t   bInterfaceNumber
uint8_t   bAlternateSetting
uint8_t   bNumEndpoints
uint8_t   bInterfaceClass
uint8_t   bInterfaceSubClass
uint8_t   bInterfaceProtocol
uint8_t   iInterface
uint8_t   type
uint8_t   code
uint16_t   checksum
uint32_t   unused
uint8_t   nextHeader
uint8_t   hdrExtLen
uint8_t   options []
uint32_t   reserved
Ipv6Addr   targetAddr
uint16_t   vlanId
uint8_t   vlanNameLen
char_t   vlanName []
uint8_t   aggregationStatus
uint32_t   aggregatedPortId
uint8_t   locationDataFormat
uint8_t   locationId []
uint8_t   portIdSubtype
uint8_t   portId []
uint8_t   functionCode
uint8_t   byteCount
uint8_t   coilStatus []
uint8_t   prefix
uint16_t   length
uint8_t   msgType
uint8_t   identifier
uint8_t   message []
uint8_t   length
Ipv4Addr   ipAddr
uint16_t   protocol
uint8_t   msgLength
uint8_t   rejectedPacket []
uint32_t   keyId
uint8_t   messageDigest [16]
uint16_t   opcode
uint16_t   block
uint16_t   value []
uint8_t   value []
}	IcmpDestUnreachableMessage
	ICMP Destination Unreachable message. More...
struct {
uint8_t   dsap
uint8_t   ssap
uint8_t   control
uint8_t   msgType
uint8_t   transactionId [3]
uint8_t   options []
uint16_t   rtype
uint16_t   rclass
uint32_t   ttl
uint16_t   rdlength
uint8_t   rdata [4]
uint8_t   bLength
uint8_t   bDescriptorType
uint8_t   bEndpointAddress
uint8_t   bmAttributes
uint16_t   wMaxPacketSize
uint8_t   bInterval
uint8_t   type
uint8_t   code
uint16_t   checksum
uint32_t   unused
uint8_t   data []
uint32_t   mtu
uint8_t   nextHeader
uint8_t   hdrExtLen
uint8_t   routingType
uint8_t   segmentsLeft
uint32_t   reserved
Ipv6Addr   address []
uint8_t   reserved1: 5
uint8_t   o: 1
uint8_t   s: 1
uint8_t   r: 1
uint8_t   reserved2 [3]
Ipv6Addr   targetAddr
uint8_t   protocolIdLen
uint8_t   protocolId []
uint16_t   maxFrameSize
uint8_t   powerPriority: 4
uint8_t   powerSource: 2
uint8_t   powerType: 2
uint16_t   powerValue
uint16_t   ttl
uint8_t   functionCode
uint16_t   startingAddr
uint16_t   quantityOfInputs
uint8_t   gwId
uint16_t   duration
uint8_t   identifier
uint16_t   length
uint8_t   message []
uint8_t   length
Ipv4Addr   ipAddr
uint16_t   protocol
uint16_t   rejectedProtocol
uint8_t   rejectedInfo []
uint16_t   opcode
uint16_t   block
uint16_t   version
uint16_t   epoch
DtlsSequenceNumber   seqNum
uint8_t   hash
uint8_t   signature
uint8_t   value []
}	IcmpTimeExceededMessage
	ICMP Time Exceeded message. More...
struct {
uint16_t   tci
uint16_t   type
uint8_t   msgType
uint8_t   hopCount
Ipv6Addr   linkAddress
Ipv6Addr   peerAddress
uint8_t   options []
uint16_t   rtype
uint16_t   rclass
uint32_t   ttl
uint16_t   rdlength
uint8_t   rdata [16]
uint8_t   bLength
uint8_t   bDescriptorType
uint16_t   bString []
uint8_t   type
uint8_t   code
uint16_t   checksum
uint8_t   pointer
uint8_t   unused [3]
uint8_t   data []
uint32_t   unused
uint8_t   nextHeader
uint8_t   payloadLen
uint16_t   reserved
uint32_t   securityParamIndex
uint32_t   sequenceNumber
uint8_t   authData []
uint32_t   reserved
Ipv6Addr   targetAddr
Ipv6Addr   destAddr
uint8_t   measurements [20]
uint16_t   psePowerPriceIndex
uint16_t   supportedCap
uint16_t   enabledCap
uint8_t   functionCode
uint8_t   byteCount
uint8_t   inputStatus []
uint8_t   radius
uint8_t   length
Ipv4Addr   ipAddr
uint32_t   magicNumber
uint8_t   identifier
uint16_t   length
uint16_t   opcode
uint16_t   errorCode
char_t   errorMsg []
uint16_t   msgSeq
uint8_t   fragOffset [3]
uint8_t   fragLength [3]
TlsSignHashAlgo   value []
uint8_t   value []
}	IcmpParamProblemMessage
	ICMP Parameter Problem message. More...
struct {
uint16_t   code
uint16_t   length
uint8_t   value []
uint16_t   rtype
uint16_t   rclass
uint32_t   ttl
uint16_t   rdlength
uint16_t   priority
uint16_t   weight
uint16_t   port
uint8_t   target []
uint8_t   bFunctionLength
uint8_t   bDescriptorType
uint8_t   bDescriptorSubtype
uint16_t   bcdCdc
uint8_t   type
uint8_t   code
uint16_t   checksum
uint16_t   identifier
uint16_t   sequenceNumber
uint8_t   data []
uint32_t   pointer
uint32_t   securityParamIndex
uint32_t   sequenceNumber
uint8_t   payloadData []
uint8_t   length
uint8_t   powerPriority: 2
uint8_t   pd4pid: 1
uint8_t   reserved: 1
uint8_t   powerSource: 2
uint8_t   powerType: 2
uint16_t   pdRequestedPower
uint16_t   pseAllocatedPower
uint8_t   mgmtAddrLen
uint8_t   mgmtAddrSubtype
uint8_t   mgmtAddr []
uint8_t   functionCode
uint16_t   startingAddr
uint16_t   quantityOfRegs
uint8_t   gwId
uint8_t   gwAdd []
Ipv4Addr   ipAddr
uint8_t   identifier
uint32_t   magicNumber
uint16_t   serverVersion
uint8_t   cookieLength
uint8_t   cookie []
}	IcmpEchoMessage
	ICMP Echo Request and Echo Reply messages. More...

Enumerations
enum	IcmpType {   ICMP_TYPE_ECHO_REPLY = 0, ICMP_TYPE_DEST_UNREACHABLE = 3, ICMP_TYPE_SOURCE_QUENCH = 4, ICMP_TYPE_REDIRECT = 5,   ICMP_TYPE_ECHO_REQUEST = 8, ICMP_TYPE_TIME_EXCEEDED = 11, ICMP_TYPE_PARAM_PROBLEM = 12, ICMP_TYPE_TIMESTAMP_REQUEST = 13,   ICMP_TYPE_TIMESTAMP_REPLY = 14, ICMP_TYPE_INFO_REQUEST = 15, ICMP_TYPE_INFO_REPLY = 16, ICMP_TYPE_ADDR_MASK_REQUEST = 17,   ICMP_TYPE_ADDR_MASK_REPLY = 18 }
	ICMP message type. More...
enum	IcmpDestUnreachableCode {   ICMP_CODE_NET_UNREACHABLE = 0, ICMP_CODE_HOST_UNREACHABLE = 1, ICMP_CODE_PROTOCOL_UNREACHABLE = 2, ICMP_CODE_PORT_UNREACHABLE = 3,   ICMP_CODE_FRAG_NEEDED_AND_DF_SET = 4, ICMP_CODE_SOURCE_ROUTE_FAILED = 5 }
	Destination Unreachable message codes. More...
enum	IcmpTimeExceededCode { ICMP_CODE_TTL_EXCEEDED = 0, ICMP_CODE_REASSEMBLY_TIME_EXCEEDED = 1 }
	Time Exceeded message codes. More...

Functions
error_t	icmpEnableEchoRequest (NetInterface *interface, bool_t enable)
	Enable support for Echo Request messages. More...
error_t	icmpEnableBroadcastEchoRequest (NetInterface *interface, bool_t enable)
	Enable support for broadcast Echo Request messages. More...
void	icmpProcessMessage (NetInterface *interface, Ipv4PseudoHeader *requestPseudoHeader, const NetBuffer *buffer, size_t offset)
	Incoming ICMP message processing. More...
void	icmpProcessEchoRequest (NetInterface *interface, Ipv4PseudoHeader *requestPseudoHeader, const NetBuffer *request, size_t requestOffset)
	Echo Request message processing. More...
error_t	icmpSendErrorMessage (NetInterface *interface, uint8_t type, uint8_t code, uint8_t parameter, const NetBuffer *ipPacket, size_t ipPacketOffset)
	Send an ICMP Error message. More...
void	icmpUpdateInStats (uint8_t type)
	Update ICMP input statistics. More...
void	icmpUpdateOutStats (uint8_t type)
	Update ICMP output statistics. More...
void	icmpDumpMessage (const IcmpHeader *message)
	Dump ICMP message for debugging purpose. More...
void	icmpDumpEchoMessage (const IcmpEchoMessage *message)
	Dump ICMP Echo Request or Echo Reply message. More...
void	icmpDumpErrorMessage (const IcmpErrorMessage *message)
	Dump generic ICMP Error message. More...

Detailed Description

ICMP (Internet Control Message Protocol)

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2023 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneTCP Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author

Oryx Embedded SARL (www.oryx-embedded.com)

Version

2.2.4

Definition in file icmp.h.

Typedef Documentation

IcmpDestUnreachableMessage

typedef { ... } IcmpDestUnreachableMessage

ICMP Destination Unreachable message.

IcmpEchoMessage

typedef { ... } IcmpEchoMessage

ICMP Echo Request and Echo Reply messages.

IcmpErrorMessage

typedef { ... } IcmpErrorMessage

ICMP Error message.

IcmpHeader

typedef { ... } IcmpHeader

ICMP header.

IcmpParamProblemMessage

typedef { ... } IcmpParamProblemMessage

ICMP Parameter Problem message.

IcmpTimeExceededMessage

typedef { ... } IcmpTimeExceededMessage

ICMP Time Exceeded message.

Enumeration Type Documentation

IcmpDestUnreachableCode

enum IcmpDestUnreachableCode

Destination Unreachable message codes.

Enumerator
ICMP_CODE_NET_UNREACHABLE
ICMP_CODE_HOST_UNREACHABLE
ICMP_CODE_PROTOCOL_UNREACHABLE
ICMP_CODE_PORT_UNREACHABLE
ICMP_CODE_FRAG_NEEDED_AND_DF_SET
ICMP_CODE_SOURCE_ROUTE_FAILED

Definition at line 73 of file icmp.h.

IcmpTimeExceededCode

enum IcmpTimeExceededCode

Time Exceeded message codes.

Enumerator
ICMP_CODE_TTL_EXCEEDED
ICMP_CODE_REASSEMBLY_TIME_EXCEEDED

Definition at line 88 of file icmp.h.

IcmpType

enum IcmpType

ICMP message type.

The type field indicates the type of the message. Its value determines the format of the remaining data

Enumerator
ICMP_TYPE_ECHO_REPLY
ICMP_TYPE_DEST_UNREACHABLE
ICMP_TYPE_SOURCE_QUENCH
ICMP_TYPE_REDIRECT
ICMP_TYPE_ECHO_REQUEST
ICMP_TYPE_TIME_EXCEEDED
ICMP_TYPE_PARAM_PROBLEM
ICMP_TYPE_TIMESTAMP_REQUEST
ICMP_TYPE_TIMESTAMP_REPLY
ICMP_TYPE_INFO_REQUEST
ICMP_TYPE_INFO_REPLY
ICMP_TYPE_ADDR_MASK_REQUEST
ICMP_TYPE_ADDR_MASK_REPLY

Definition at line 51 of file icmp.h.

Function Documentation

icmpDumpEchoMessage()

void icmpDumpEchoMessage

(

const IcmpEchoMessage *

message

)

Dump ICMP Echo Request or Echo Reply message.

Parameters

[in]

message

Pointer to the ICMP message

Definition at line 607 of file icmp.c.

icmpDumpErrorMessage()

void icmpDumpErrorMessage

(

const IcmpErrorMessage *

message

)

Dump generic ICMP Error message.

Parameters

[in]

message

Pointer to the ICMP message

Definition at line 623 of file icmp.c.

icmpDumpMessage()

void icmpDumpMessage

(

const IcmpHeader *

message

)

Dump ICMP message for debugging purpose.

Parameters

[in]

message

Pointer to the ICMP message

Definition at line 593 of file icmp.c.

icmpEnableBroadcastEchoRequest()

error_t icmpEnableBroadcastEchoRequest	(	NetInterface *	interface,
		bool_t	enable
	)

Enable support for broadcast Echo Request messages.

Parameters

[in]	interface	Underlying network interface
[in]	enable	When the flag is set to TRUE, the host will respond to broadcast Echo Requests. When the flag is set to FALSE, incoming Echo Request messages destined to a broadcast address will be dropped

Returns

Error code

Definition at line 85 of file icmp.c.

icmpEnableEchoRequest()

error_t icmpEnableEchoRequest	(	NetInterface *	interface,
		bool_t	enable
	)

Enable support for Echo Request messages.

Parameters

[in]	interface	Underlying network interface
[in]	enable	When the flag is set to TRUE, the host will respond to Echo Requests. When the flag is set to FALSE, incoming Echo Request messages will be dropped

Returns

Error code

Definition at line 58 of file icmp.c.

icmpProcessEchoRequest()

void icmpProcessEchoRequest	(	NetInterface *	interface,
		Ipv4PseudoHeader *	requestPseudoHeader,
		const NetBuffer *	request,
		size_t	requestOffset
	)

Echo Request message processing.

Parameters

[in]	interface	Underlying network interface
[in]	requestPseudoHeader	IPv4 pseudo header
[in]	request	Multi-part buffer containing the incoming Echo Request message
[in]	requestOffset	Offset to the first byte of the Echo Request message

Definition at line 192 of file icmp.c.

icmpProcessMessage()

void icmpProcessMessage	(	NetInterface *	interface,
		Ipv4PseudoHeader *	requestPseudoHeader,
		const NetBuffer *	buffer,
		size_t	offset
	)

Incoming ICMP message processing.

Parameters

[in]	interface	Underlying network interface
[in]	requestPseudoHeader	IPv4 pseudo header
[in]	buffer	Multi-part buffer containing the incoming ICMP message
[in]	offset	Offset to the first byte of the ICMP message

Definition at line 111 of file icmp.c.

icmpSendErrorMessage()

error_t icmpSendErrorMessage	(	NetInterface *	interface,
		uint8_t	type,
		uint8_t	code,
		uint8_t	parameter,
		const NetBuffer *	ipPacket,
		size_t	ipPacketOffset
	)

Send an ICMP Error message.

Parameters

[in]	interface	Underlying network interface
[in]	type	Message type
[in]	code	Specific message code
[in]	parameter	Specific message parameter
[in]	ipPacket	Multi-part buffer that holds the invoking IPv4 packet
[in]	ipPacketOffset	Offset to the first byte of the IPv4 packet

Returns

Error code

Definition at line 337 of file icmp.c.

icmpUpdateInStats()

void icmpUpdateInStats

(

uint8_t

type

)

Update ICMP input statistics.

Parameters

[in]

type

ICMP message type

Definition at line 439 of file icmp.c.

icmpUpdateOutStats()

void icmpUpdateOutStats

(

uint8_t

type

)

Update ICMP output statistics.

Parameters

[in]

type

ICMPv6 message type

Definition at line 514 of file icmp.c.

Variable Documentation

checksum

uint16_t checksum

Definition at line 109 of file icmp.h.

code

uint8_t code

Definition at line 108 of file icmp.h.

data

uint8_t data[]

Definition at line 110 of file icmp.h.

identifier

uint16_t identifier

Definition at line 181 of file icmp.h.

parameter

uint8_t parameter

Definition at line 123 of file icmp.h.

pointer

uint8_t pointer

Definition at line 166 of file icmp.h.

sequenceNumber

uint16_t sequenceNumber

Definition at line 182 of file icmp.h.

type

uint8_t type

Definition at line 107 of file icmp.h.

unused

uint8_t unused[3]

Definition at line 124 of file icmp.h.