func main() {
nlsk := nlgo.NlSocketAlloc()
nlgo.NlConnect(nlsk, syscall.NETLINK_GENERIC)
familyID := uint16(22)
fmt.Println(familyID)
files, _ := ioutil.ReadDir("/proc/")
var pids []int
for _, f := range files {
if f.Name()[0] >= '0' && f.Name()[0] <= '9' {
pid, _ := strconv.ParseInt(f.Name(), 10, 32)
pids = append(pids, int(pid))
}
}
for i := 0; i < 50; i++ {
time.Sleep(1000 * time.Millisecond)
for _, p := range pids {
t := netlink.GetTaskStats(nlsk, p)
fmt.Printf("pid: %d ", p)
if t != nil {
if taskstatsMap[p] == nil {
taskstatsMap[p] = t
} else {
fmt.Println(t.Read_bytes-taskstatsMap[p].Read_bytes,
t.Write_bytes-taskstatsMap[p].Write_bytes)
taskstatsMap[p] = t
}
}
}
}
}
func BenchmarkNetlink(b *testing.B) {
nlsk := nlgo.NlSocketAlloc()
nlgo.NlConnect(nlsk, syscall.NETLINK_GENERIC)
for i := 0; i < b.N; i++ {
for _, p := range pids {
t := netlink.GetTaskStats(nlsk, p)
if t != nil {
if taskstatsMap[p] == nil {
taskstatsMap[p] = t
} else {
taskstatsMap[p] = t
}
}
}
}
}
func main() {
nlsk := nlgo.NlSocketAlloc()
nlgo.NlConnect(nlsk, syscall.NETLINK_GENERIC)
syscall.Bind(nlsk.Fd, &syscall.SockaddrNetlink{
Family: syscall.AF_NETLINK,
Pid: uint32(os.Getpid()),
Pad: CN_IDX_PROC,
})
data := []byte{
40,
0,
0,
0,
3,
0,
0,
0,
0,
0,
0,
0,
77,
26,
0,
0,
1,
0,
0,
0,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
4,
0,
0,
0,
1,
0,
0,
0,
}
p := (*ppp)(unsafe.Pointer(&data[12]))
p.pid = uint32(os.Getpid())
fmt.Println(data)
err := syscall.Sendto(nlsk.Fd, data, 0, &nlsk.Peer)
if err != nil {
fmt.Println(err)
} else {
fmt.Println("send success")
}
func() error {
for {
buf := make([]byte, 1024)
if _, _, err := syscall.Recvfrom(nlsk.Fd, buf, 0); err != nil {
return err
}
fmt.Println(buf)
}
}()
}