PcapPlusPlus  21.05+
pcpp::UdpLengthFilter Class Reference

#include <PcapFilter.h>

Inheritance diagram for pcpp::UdpLengthFilter:
pcpp::IFilterWithOperator pcpp::GeneralFilter

Public Member Functions

 UdpLengthFilter (uint16_t legnth, FilterOperator op)
void parseToString (std::string &result)
void setLength (uint16_t legnth)
- Public Member Functions inherited from pcpp::IFilterWithOperator
void setOperator (FilterOperator op)
- Public Member Functions inherited from pcpp::GeneralFilter
bool matchPacketWithFilter (RawPacket *rawPacket)
virtual ~GeneralFilter ()

Detailed Description

A class for filtering UDP packets that matches UDP length criteria
For deeper understanding of the filter concept please refer to PcapFilter.h

Constructor & Destructor Documentation

◆ UdpLengthFilter()

pcpp::UdpLengthFilter::UdpLengthFilter ( uint16_t  legnth,
FilterOperator  op 

A constructor that get the UDP length and operator and creates the filter. For example: "filter all UDP packets with length greater or equal to 500"

[in]legnthThe length value that will be used in the filter
[in]opThe operator to use (e.g "equal", "greater than", etc.)

Member Function Documentation

◆ parseToString()

void pcpp::UdpLengthFilter::parseToString ( std::string &  result)

A method that parses the class instance into BPF string format

[out]resultAn empty string that the parsing will be written into. If the string isn't empty, its content will be overridden
No return value

Implements pcpp::GeneralFilter.

◆ setLength()

void pcpp::UdpLengthFilter::setLength ( uint16_t  legnth)

Set legnth value

[in]legnthThe legnth value that will be used in the filter