func IOCounters(pernic bool) ([]IOCountersStat, error) {
ifs, err := net.Interfaces()
if err != nil {
return nil, err
}
var ret []IOCountersStat
for _, ifi := range ifs {
c := IOCountersStat{
Name: ifi.Name,
}
row := syscall.MibIfRow{Index: uint32(ifi.Index)}
e := syscall.GetIfEntry(&row)
if e != nil {
return nil, os.NewSyscallError("GetIfEntry", e)
}
c.BytesSent = uint64(row.OutOctets)
c.BytesRecv = uint64(row.InOctets)
c.PacketsSent = uint64(row.OutUcastPkts)
c.PacketsRecv = uint64(row.InUcastPkts)
c.Errin = uint64(row.InErrors)
c.Errout = uint64(row.OutErrors)
c.Dropin = uint64(row.InDiscards)
c.Dropout = uint64(row.OutDiscards)
ret = append(ret, c)
}
if pernic == false {
return getIOCountersAll(ret)
}
return ret, nil
}
func queryIOCounters(iface net.Interface, freq time.Duration, qio QueryIO) {
for {
var row syscall.MibIfRow
select {
case <-time.After(freq):
row.Index = uint32(iface.Index)
err := syscall.GetIfEntry(&row)
if err != nil {
log.Fatal(err)
}
ioc := &IOCounters{
Name: iface.Name,
BytesSent: sysmon.Size(row.OutOctets),
BytesRecv: sysmon.Size(row.InOctets),
PacketsSent: row.OutUcastPkts,
PacketsRecv: row.InUcastPkts,
Errin: row.InErrors,
Errout: row.OutErrors,
Dropin: row.InDiscards,
Dropout: row.OutDiscards,
}
qio.IOCounterChan <- ioc
case <-qio.quit:
// we have received a signal to stop
return
}
}
}
func NetIOCounters(pernic bool) ([]NetIOCountersStat, error) {
ifs, err := net.Interfaces()
if err != nil {
return nil, err
}
ai, err := getAdapterList()
if err != nil {
return nil, err
}
var ret []NetIOCountersStat
for _, ifi := range ifs {
name := ifi.Name
for ; ai != nil; ai = ai.Next {
name = common.BytePtrToString(&ai.Description[0])
c := NetIOCountersStat{
Name: name,
}
row := syscall.MibIfRow{Index: ai.Index}
e := syscall.GetIfEntry(&row)
if e != nil {
return nil, os.NewSyscallError("GetIfEntry", e)
}
c.BytesSent = uint64(row.OutOctets)
c.BytesRecv = uint64(row.InOctets)
c.PacketsSent = uint64(row.OutUcastPkts)
c.PacketsRecv = uint64(row.InUcastPkts)
c.Errin = uint64(row.InErrors)
c.Errout = uint64(row.OutErrors)
c.Dropin = uint64(row.InDiscards)
c.Dropout = uint64(row.OutDiscards)
ret = append(ret, c)
}
}
if pernic == false {
return getNetIOCountersAll(ret)
}
return ret, nil
}
// If the ifindex is zero, interfaceTable returns mappings of all
// network interfaces. Otheriwse it returns a mapping of a specific
// interface.
func interfaceTable(ifindex int) ([]Interface, os.Error) {
ai, e := getAdapterList()
if e != nil {
return nil, e
}
ii, e := getInterfaceList()
if e != nil {
return nil, e
}
var ift []Interface
for ; ai != nil; ai = ai.Next {
index := ai.Index
if ifindex == 0 || ifindex == int(index) {
var flags Flags
row := syscall.MibIfRow{Index: index}
e := syscall.GetIfEntry(&row)
if e != 0 {
return nil, os.NewSyscallError("GetIfEntry", e)
}
for _, ii := range ii {
ip := (*syscall.RawSockaddrInet4)(unsafe.Pointer(&ii.Address)).Addr
ipv4 := IPv4(ip[0], ip[1], ip[2], ip[3])
ipl := &ai.IpAddressList
for ipl != nil {
ips := bytePtrToString(&ipl.IpAddress.String[0])
if ipv4.Equal(parseIPv4(ips)) {
break
}
ipl = ipl.Next
}
if ipl == nil {
continue
}
if ii.Flags&syscall.IFF_UP != 0 {
flags |= FlagUp
}
if ii.Flags&syscall.IFF_LOOPBACK != 0 {
flags |= FlagLoopback
}
if ii.Flags&syscall.IFF_BROADCAST != 0 {
flags |= FlagBroadcast
}
if ii.Flags&syscall.IFF_POINTTOPOINT != 0 {
flags |= FlagPointToPoint
}
if ii.Flags&syscall.IFF_MULTICAST != 0 {
flags |= FlagMulticast
}
}
name := bytePtrToString(&ai.AdapterName[0])
ifi := Interface{
Index: int(index),
MTU: int(row.Mtu),
Name: name,
HardwareAddr: HardwareAddr(row.PhysAddr[:row.PhysAddrLen]),
Flags: flags}
ift = append(ift, ifi)
}
}
return ift, nil
}
