jnetpcap.filter.bpf.vm
Class BPFVirtualMachine

java.lang.Object
  jnetpcap.filter.bpf.vm.BPFVirtualMachine

public class BPFVirtualMachine
extends java.lang.Object

Virtual State Machine that interprets and executes a BPF program.

Author:

Mark Bednarczyk, Sly Technologies, Inc.

Field Summary

static int

BPF_MEMWORDS

Constructor Summary

BPFVirtualMachine(BPFProgram bpf)

BPFVirtualMachine(byte[] pc)

Method Summary

long	execute(BPFProgram program, byte[] p, int wirelen, int buflen)
long	execute(byte[] p, int wirelen, int buflen)
long	execute(java.nio.ByteBuffer p, int wirelen, int buflen)

Methods inherited from class java.lang.Object

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

Field Detail

BPF_MEMWORDS

public static final int BPF_MEMWORDS

See Also:

Constant Field Values

Constructor Detail

BPFVirtualMachine

public BPFVirtualMachine(byte[] pc)
                  throws IllegalInstruction

Throws:

IllegalInstruction

BPFVirtualMachine

public BPFVirtualMachine(BPFProgram bpf)

Parameters:

bpf -

Method Detail

execute

public long execute(byte[] p,
                    int wirelen,
                    int buflen)
             throws IllegalInstruction

Throws:

IllegalInstruction

execute

public long execute(java.nio.ByteBuffer p,
                    int wirelen,
                    int buflen)
             throws IllegalInstruction

Throws:

IllegalInstruction

execute

public long execute(BPFProgram program,
                    byte[] p,
                    int wirelen,
                    int buflen)
             throws IllegalInstruction

Throws:

IllegalInstruction