func main() {
sk := nlgo.NlSocketAlloc()
if err := nlgo.GenlConnect(sk); err != nil {
panic(err)
} else if err := nlgo.GenlSendSimple(sk, nlgo.GENL_ID_CTRL, nlgo.CTRL_CMD_GETFAMILY, nlgo.CTRL_VERSION, syscall.NLM_F_DUMP); err != nil {
panic(err)
}
nl80211 := nlgo.NlSocketAlloc()
if err := nlgo.GenlConnect(nl80211); err != nil {
panic(err)
}
data := make([]byte, syscall.Getpagesize())
if n, _, _, _, err := syscall.Recvmsg(sk.Fd, data, nil, 0); err != nil {
panic(err)
} else if msgs, err := syscall.ParseNetlinkMessage(data[:n]); err != nil {
log.Print("X", err)
} else {
for _, msg := range msgs {
genl := *(*nlgo.GenlMsghdr)(unsafe.Pointer(&msg.Data[0]))
if msg.Header.Type == nlgo.GENL_ID_CTRL && genl.Cmd == nlgo.CTRL_CMD_NEWFAMILY {
if attr, err := nlgo.CtrlPolicy.Parse(msg.Data[nlgo.GENL_HDRLEN:]); err != nil {
log.Print(err)
} else if amap, ok := attr.(nlgo.AttrMap); !ok {
log.Print(attr)
} else if value := amap.Get(nlgo.CTRL_ATTR_FAMILY_NAME).(nlgo.NulString); string(value) == "nl80211" {
log.Printf("%v", attr)
for _, g := range amap.Get(nlgo.CTRL_ATTR_MCAST_GROUPS).(nlgo.AttrSlice).Slice() {
group := g.Value.(nlgo.AttrMap)
pid := group.Get(nlgo.CTRL_ATTR_MCAST_GRP_ID).(nlgo.U32)
if err := nlgo.NlSocketAddMembership(nl80211, int(pid)); err != nil {
log.Print(err)
}
}
}
} else {
log.Print("UNKNOWN")
}
}
}
nlgo.NlSocketFree(sk)
for {
if n, _, _, _, err := syscall.Recvmsg(nl80211.Fd, data, nil, 0); err != nil {
panic(err)
} else if msgs, err := syscall.ParseNetlinkMessage(data[:n]); err != nil {
log.Print("Y", err)
} else {
for _, msg := range msgs {
genl := (*nlgo.GenlMsghdr)(unsafe.Pointer(&msg.Data[0]))
if attr, err := nlgo.Nl80211Policy.Parse(msg.Data[nlgo.GENL_HDRLEN:]); err != nil {
log.Print("Z", err)
} else {
log.Printf("NL80211_CMD_%s attrs=%s", nlgo.NL80211_CMD_itoa[genl.Cmd], attr)
}
}
}
}
}
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)
}
}()
}