/***************************************************************************
* HeaderTemplates.cc -- *
* *
***********************IMPORTANT NMAP LICENSE TERMS************************
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***************************************************************************/
#include "HeaderTemplates.h"
/******************************************************************************
* GENERIC HeaderTemplate CLASS *
******************************************************************************/
HeaderTemplate::HeaderTemplate(){
} /* End of HeaderTemplate constructor */
HeaderTemplate::~HeaderTemplate(){
} /* End of HeaderTemplate destructor */
/******************************************************************************
* EthernetHeaderTemplate Class *
******************************************************************************/
EthernetHeaderTemplate::EthernetHeaderTemplate(){
this->reset();
} /* End of EthernetHeaderTemplate constructor */
EthernetHeaderTemplate::~EthernetHeaderTemplate(){
} /* End of EthernetHeaderTemplate destructor */
/* This method returns the object to its default state. The reset() method is
* very important because it initializes Ethernet header fields with default values
* that will affect the final packets that Nping produces. However, note that
* the values set here may be overridden by NpingOps if necessary. */
void EthernetHeaderTemplate::reset(){
// "src", "dst" and "type" are not set on purpose.
} /* End of reset() */
/******************************************************************************
* IPv4PHeaderTemplate Class *
******************************************************************************/
ARPHeaderTemplate::ARPHeaderTemplate(){
this->reset();
} /* End of ARPHeaderTemplate constructor */
ARPHeaderTemplate::~ARPHeaderTemplate(){
} /* End of ARPHeaderTemplate destructor */
/* This method returns the object to its default state. The reset() method is
* very important because it initializes ARP header fields with default values
* that will affect the final packets that Nping produces. However, note that
* the values set here may be overridden by NpingOps if necessary (when the
* user supplies his own values or when we have special restrictions) */
void ARPHeaderTemplate::reset(){
this->htype.setConstant(DEFAULT_ARP_HTYPE);
this->ptype.setConstant(DEFAULT_ARP_PTYPE);
this->haddrlen.setConstant(DEFAULT_ARP_HADDRLEN);
this->paddrlen.setConstant(DEFAULT_ARP_PADDRLEN);
this->op.setConstant(DEFAULT_ARP_OP);
/* Hardware and protocol addresses are left unset on purpose. */
} /* End of reset() */
/******************************************************************************
* IPv4PHeaderTemplate Class *
******************************************************************************/
IPv4HeaderTemplate::IPv4HeaderTemplate(){
this->reset();
} /* End of IPv4HeaderTemplate constructor */
IPv4HeaderTemplate::~IPv4HeaderTemplate(){
} /* End of IPv4HeaderTemplate destructor */
/* This method returns the object to its default state. The reset() method is
* very important because it initializes IPv4 header fields with default values
* that will affect the final packets that Nping produces. However, note that
* the values set here may be overridden by NpingOps if necessary (when the
* user supplies his own values or when we have special restrictions) */
void IPv4HeaderTemplate::reset(){
/* Type of Service */
this->tos.setConstant(DEFAULT_IPv4_TOS);
/* Identification */
this->id.setBehavior(FIELD_TYPE_INCREMENTAL);
this->id.setStartValue(get_random_u16());
/* Flags */
this->rf.setConstant(DEFAULT_IPv4_FLAG_RF);
this->df.setConstant(DEFAULT_IPv4_FLAG_DF);
this->mf.setConstant(DEFAULT_IPv4_FLAG_MF);
/* Fragment Offset */
this->off.setConstant(DEFAULT_IPv4_FRAG_OFFSET);
/* Time To Live */
this->ttl.setConstant(DEFAULT_IPv4_TTL);
// this->nh.setConstant() The Next header is unset on purpose.
} /* End of reset() */
/******************************************************************************
* IPv6HeaderTemplate Class *
******************************************************************************/
IPv6HeaderTemplate::IPv6HeaderTemplate(){
this->reset();
} /* End of IPv6PHeaderTemplate constructor */
IPv6HeaderTemplate::~IPv6HeaderTemplate(){
} /* End of IPv6PHeaderTemplate destructor */
/* This method returns the object to its default state. The reset() method is
* very important because it initializes IPv4 header fields with default values
* that will affect the final packets that Nping produces. However, note that
* the values set here may be overridden by NpingOps if necessary (when the
* user supplies his own values or when we have special restrictions) */
void IPv6HeaderTemplate::reset(){
/* Traffic Class */
this->tclass.setConstant(DEFAULT_IPv6_TCLASS);
/* Flow Label */
this->flow.setConstant(DEFAULT_IPv6_FLOW);
/* Time To Live */
this->hlim.setConstant(DEFAULT_IPv6_HOPLIMIT);
// this->nh.setConstant() The Next header is unset on purpose.
} /* End of reset() */
/******************************************************************************
* TCPHeaderTemplate Class *
******************************************************************************/
TCPHeaderTemplate::TCPHeaderTemplate(){
this->reset();
} /* End of TCPHeaderTemplate constructor */
TCPHeaderTemplate::~TCPHeaderTemplate(){
} /* End of TCPHeaderTemplate destructor */
/* This method returns the object to its default state. The reset() method is
* very important because it initializes TCP header fields with default values
* that will affect the final packets that Nping produces. However, note that
* the values set here may be overridden by NpingOps if necessary (when the
* user supplies his own values or when we have special restrictions, like
* in Echo Client Mode, where the source port cannot be the same as the
* NEP port number in use */
void TCPHeaderTemplate::reset(){
/* Source Port. We chose an incremental random port number, higher than 1024. */
this->sport.setBehavior(FIELD_TYPE_INCREMENTAL);
u16 start_port=1024 + (get_random_u16()%(65535-1024))/2;
this->sport.setStartValue(start_port);
this->sport.setMaxIncrements(65535-start_port);
/* Destination Port */
this->dport.setBehavior(FIELD_TYPE_CONSTANT);
this->dport.setStartValue(DEFAULT_TCP_TARGET_PORT);
/* Sequence number */
this->seq.setBehavior(FIELD_TYPE_INCREMENTAL);
this->seq.setStartValue( get_random_u32() );
/* Acknowledgement number */
this->ack.setBehavior(FIELD_TYPE_CONSTANT);
this->ack.setStartValue(DEFAULT_TCP_ACKNOWLEDGMENT);
/* Offset (TCP header length in 32-bit words) */
this->off.setBehavior(FIELD_TYPE_CONSTANT);
this->off.setStartValue(DEFAULT_TCP_OFFSET);
/* Flags */
this->flags.setBehavior(FIELD_TYPE_CONSTANT);
this->flags.setStartValue(DEFAULT_TCP_FLAGS);
/* Window size */
this->win.setBehavior(FIELD_TYPE_CONSTANT);
this->win.setStartValue(DEFAULT_TCP_WINDOW_SIZE);
/* Checksum */
// We don't initialize the checksum so is_set() returns false
/* Urgent pointer */
this->urp.setBehavior(FIELD_TYPE_CONSTANT);
this->urp.setStartValue(DEFAULT_TCP_URGENT_POINTER);
} /* End of reset() */
/******************************************************************************
* UDPHeaderTemplate Class *
******************************************************************************/
UDPHeaderTemplate::UDPHeaderTemplate(){
this->reset();
} /* End of UDPHeaderTemplate constructor */
UDPHeaderTemplate::~UDPHeaderTemplate(){
} /* End of UDPHeaderTemplate destructor */
/* This method returns the object to its default state. The reset() method is
* very important because it initializes UDP header fields with default values
* that will affect the final packets that Nping produces. However, note that
* the values set here may be overridden by NpingOps if necessary. */
void UDPHeaderTemplate::reset(){
/* Source Port. We chose an incremental random port number, higher than 1024. */
this->sport.setConstant(DEFAULT_UDP_SOURCE_PORT);
/* Destination Port */
this->dport.setConstant(DEFAULT_UDP_TARGET_PORT);
} /* End of reset() */
/******************************************************************************
* ICMPv4HeaderTemplate Class *
******************************************************************************/
ICMPv4HeaderTemplate::ICMPv4HeaderTemplate(){
this->reset();
} /* End of ICMPv4HeaderTemplate constructor */
ICMPv4HeaderTemplate::~ICMPv4HeaderTemplate(){
} /* End of ICMPv4HeaderTemplate destructor */
/* This method returns the object to its default state. The reset() method is
* very important because it initializes ICMP header fields with default values
* that will affect the final packets that Nping produces. However, note that
* the values set here may be overridden by NpingOps if necessary */
void ICMPv4HeaderTemplate::reset(){
this->type.setConstant(DEFAULT_ICMPv4_TYPE);
this->code.setConstant(DEFAULT_ICMPv4_CODE);
this->id.setConstant(get_random_u16());
this->seq.setBehavior(FIELD_TYPE_INCREMENTAL);
this->seq.setStartValue(0);
} /* End of reset() */
/******************************************************************************
* ICMPv6HeaderTemplate Class *
******************************************************************************/
ICMPv6HeaderTemplate::ICMPv6HeaderTemplate(){
this->reset();
} /* End of ICMPv6HeaderTemplate constructor */
ICMPv6HeaderTemplate::~ICMPv6HeaderTemplate(){
} /* End of ICMPv6HeaderTemplate destructor */
/* This method returns the object to its default state. The reset() method is
* very important because it initializes ICMP header fields with default values
* that will affect the final packets that Nping produces. However, note that
* the values set here may be overridden by NpingOps if necessary */
void ICMPv6HeaderTemplate::reset(){
this->type.setConstant(DEFAULT_ICMPv6_TYPE);
this->code.setConstant(DEFAULT_ICMPv6_CODE);
this->id.setConstant(get_random_u16());
this->seq.setBehavior(FIELD_TYPE_INCREMENTAL);
this->seq.setStartValue(0);
} /* End of reset() */