パッケージ org.pcap4j.core

クラス Pcaps

java.lang.Object

org.pcap4j.core.Pcaps

public final class Pcaps
extends Object

導入されたバージョン:

pcap4j 0.9.1

作成者:

Kaito Yamada

メソッドの概要

修飾子とタイプ	メソッド	説明
static BpfProgram	compileFilter(int snaplen, DataLinkType dlt, String bpfExpression, BpfProgram.BpfCompileMode mode, Inet4Address netmask)
static DataLinkType	dataLinkNameToVal(String name)
static String	dataLinkTypeToDescription(DataLinkType dlt)
static String	dataLinkTypeToName(DataLinkType dlt)
static String	dataLinkValToDescription(int dataLinkVal)
static String	dataLinkValToName(int dataLinkVal)
static List<PcapNetworkInterface>	findAllDevs()	Gets all devices.
static PcapNetworkInterface	getDevByAddress(InetAddress addr)	Gets a device by IP address.
static PcapNetworkInterface	getDevByName(String name)	Gets a device by name.
static String	libVersion()
static String	lookupDev()
static Inet4NetworkAddress	lookupNet(String devName)
static PcapHandle	openDead(DataLinkType dlt, int snaplen)
static PcapHandle	openDead(DataLinkType dlt, int snaplen, PcapHandle.TimestampPrecision precision)
static PcapHandle	openOffline(String filePath)
static PcapHandle	openOffline(String filePath, PcapHandle.TimestampPrecision precision)
static String	strError(int error)
static String	toBpfString(InetAddress inetAddr)
static String	toBpfString(MacAddress macAddr)

クラスから継承されたメソッド java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

メソッドの詳細

findAllDevs

public static List<PcapNetworkInterface> findAllDevs()
                                              throws PcapNativeException

Gets all devices.

戻り値:

a list of PcapNetworkInterfaces.

例外:

PcapNativeException - if an error occurs in the pcap native library.

getDevByAddress

public static PcapNetworkInterface getDevByAddress(InetAddress addr)
                                            throws PcapNativeException

Gets a device by IP address.

パラメータ:

addr - addr

戻り値:

a PcapNetworkInterface.

例外:

PcapNativeException - if an error occurs in the pcap native library.

getDevByName

public static PcapNetworkInterface getDevByName(String name)
                                         throws PcapNativeException

Gets a device by name.

パラメータ:

name - name

戻り値:

a PcapNetworkInterface.

例外:

PcapNativeException - if an error occurs in the pcap native library.

lookupDev

public static String lookupDev()
                        throws PcapNativeException

戻り値:

a name of a network interface.

例外:

PcapNativeException - if an error occurs in the pcap native library.

lookupNet

public static Inet4NetworkAddress lookupNet(String devName)
                                     throws PcapNativeException

パラメータ:

devName - devName

戻り値:

an Inet4NetworkAddress object.

例外:

PcapNativeException - if an error occurs in the pcap native library.

openOffline

public static PcapHandle openOffline(String filePath)
                              throws PcapNativeException

パラメータ:

filePath - "-" means stdin

戻り値:

a new PcapHandle object.

例外:

PcapNativeException - if an error occurs in the pcap native library.

openOffline

public static PcapHandle openOffline(String filePath,
                                     PcapHandle.TimestampPrecision precision)
                              throws PcapNativeException

パラメータ:

filePath - "-" means stdin

precision - precision

戻り値:

a new PcapHandle object.

例外:

PcapNativeException - if an error occurs in the pcap native library.

openDead

public static PcapHandle openDead(DataLinkType dlt,
                                  int snaplen)
                           throws PcapNativeException

パラメータ:

dlt - dlt

snaplen - Snapshot length, which is the number of bytes captured for each packet.

戻り値:

a new PcapHandle object.

例外:

PcapNativeException - if an error occurs in the pcap native library.

openDead

public static PcapHandle openDead(DataLinkType dlt,
                                  int snaplen,
                                  PcapHandle.TimestampPrecision precision)
                           throws PcapNativeException

パラメータ:

dlt - dlt

snaplen - Snapshot length, which is the number of bytes captured for each packet.

precision - precision

戻り値:

a new PcapHandle object.

例外:

PcapNativeException - if an error occurs in the pcap native library.

compileFilter

public static BpfProgram compileFilter(int snaplen,
                                       DataLinkType dlt,
                                       String bpfExpression,
                                       BpfProgram.BpfCompileMode mode,
                                       Inet4Address netmask)
                                throws PcapNativeException

パラメータ:

snaplen - snaplen

dlt - dlt

bpfExpression - bpfExpression

mode - mode

netmask - netmask

戻り値:

a BpfProgram object.

例外:

PcapNativeException - if an error occurs in the pcap native library.

dataLinkNameToVal

public static DataLinkType dataLinkNameToVal(String name)
                                      throws PcapNativeException

パラメータ:

name - a data link type name, which is a DLT_ name with the DLT_ removed.

戻り値:

a DataLinkType object.

例外:

PcapNativeException - if an error occurs in the pcap native library.

dataLinkTypeToName

public static String dataLinkTypeToName(DataLinkType dlt)
                                 throws PcapNativeException

パラメータ:

dlt - dlt

戻り値:

data link type name

例外:

PcapNativeException - if an error occurs in the pcap native library.

dataLinkValToName

public static String dataLinkValToName(int dataLinkVal)
                                throws PcapNativeException

パラメータ:

dataLinkVal - dataLinkVal

戻り値:

data link type name

例外:

PcapNativeException - if an error occurs in the pcap native library.

dataLinkTypeToDescription

public static String dataLinkTypeToDescription(DataLinkType dlt)
                                        throws PcapNativeException

パラメータ:

dlt - dlt

戻り値:

a short description of that data link type.

例外:

PcapNativeException - if an error occurs in the pcap native library.

dataLinkValToDescription

public static String dataLinkValToDescription(int dataLinkVal)
                                       throws PcapNativeException

パラメータ:

dataLinkVal - dataLinkVal

戻り値:

a short description of that data link type.

例外:

PcapNativeException - if an error occurs in the pcap native library.

strError

public static String strError(int error)

パラメータ:

error - error

戻り値:

an error message.

libVersion

public static String libVersion()

戻り値:

a string giving information about the version of the libpcap library being used; note that it contains more information than just a version number.

toBpfString

public static String toBpfString(InetAddress inetAddr)

パラメータ:

inetAddr - Inet4Address or Inet6Address

戻り値:

a string representation of an InetAddress for BPF.

toBpfString

public static String toBpfString(MacAddress macAddr)

パラメータ:

macAddr - macAddr

戻り値:

a string representation of a MAC address for BPF.