func main() {
flag.Parse()
var handle *pcap.Handle
var err error
if *fname != "" {
if handle, err = pcap.OpenOffline(*fname); err != nil {
log.Fatalln("PCAP OpenOffline error:", err)
}
} else {
if handle, err = pcap.OpenLive(*iface, int32(*snaplen), true, time.Second); err != nil {
log.Fatalln("PCAP OpenLive error:", err)
}
if *tstype != "" {
if t, err := pcap.TimestampSourceFromString(*tstype); err != nil {
log.Fatalf("Supported timestamp types: %v", handle.SupportedTimestamps())
} else if err := handle.SetTimestampSource(t); err != nil {
log.Fatalf("Supported timestamp types: %v", handle.SupportedTimestamps())
}
}
if len(flag.Args()) > 0 {
bpffilter := strings.Join(flag.Args(), " ")
fmt.Fprintf(os.Stderr, "Using BPF filter %q\n", bpffilter)
if err = handle.SetBPFFilter(bpffilter); err != nil {
log.Fatalln("BPF filter error:", err)
}
}
}
dumpcommand.Run(handle)
}
func main() {
defer util.Run()()
var ring *pfring.Ring
var err error
if ring, err = pfring.NewRing(*iface, uint32(*snaplen), pfring.FlagPromisc); err != nil {
log.Fatalln("pfring ring creation error:", err)
}
if len(flag.Args()) > 0 {
bpffilter := strings.Join(flag.Args(), " ")
fmt.Fprintf(os.Stderr, "Using BPF filter %q\n", bpffilter)
if err = ring.SetBPFFilter(bpffilter); err != nil {
log.Fatalln("BPF filter error:", err)
}
}
if *cluster >= 0 {
if err = ring.SetCluster(*cluster, pfring.ClusterType(*clustertype)); err != nil {
log.Fatalln("pfring SetCluster error:", err)
}
}
if err = ring.SetSocketMode(pfring.ReadOnly); err != nil {
log.Fatalln("pfring SetSocketMode error:", err)
} else if err = ring.Enable(); err != nil {
log.Fatalln("pfring Enable error:", err)
}
dumpcommand.Run(ring)
}
func main() {
flag.Parse()
var handle *pcap.Handle
var err error
if *fname != "" {
if handle, err = pcap.OpenOffline(*fname); err != nil {
log.Fatalln("PCAP OpenOffline error:", err)
}
} else {
if handle, err = pcap.OpenLive(*iface, int32(*snaplen), true, time.Second); err != nil {
log.Fatalln("PCAP OpenLive error:", err)
}
if len(flag.Args()) > 0 {
bpffilter := strings.Join(flag.Args(), " ")
fmt.Fprintf(os.Stderr, "Using BPF filter %q\n", bpffilter)
if err = handle.SetBPFFilter(bpffilter); err != nil {
log.Fatalln("BPF filter error:", err)
}
}
}
dumpcommand.Run(handle)
}