72 lines
1.6 KiB
Go
72 lines
1.6 KiB
Go
package system
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import (
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"fmt"
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"syscall"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/plugins/inputs"
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)
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type NetStats struct {
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ps PS
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}
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func (_ *NetStats) Description() string {
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return "Read TCP metrics such as established, time wait and sockets counts."
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}
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var tcpstatSampleConfig = ""
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func (_ *NetStats) SampleConfig() string {
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return tcpstatSampleConfig
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}
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func (s *NetStats) Gather(acc telegraf.Accumulator) error {
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netconns, err := s.ps.NetConnections()
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if err != nil {
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return fmt.Errorf("error getting net connections info: %s", err)
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}
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counts := make(map[string]int)
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counts["UDP"] = 0
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// TODO: add family to tags or else
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tags := map[string]string{}
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for _, netcon := range netconns {
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if netcon.Type == syscall.SOCK_DGRAM {
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counts["UDP"] += 1
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continue // UDP has no status
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}
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c, ok := counts[netcon.Status]
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if !ok {
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counts[netcon.Status] = 0
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}
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counts[netcon.Status] = c + 1
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}
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fields := map[string]interface{}{
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"tcp_established": counts["ESTABLISHED"],
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"tcp_syn_sent": counts["SYN_SENT"],
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"tcp_syn_recv": counts["SYN_RECV"],
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"tcp_fin_wait1": counts["FIN_WAIT1"],
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"tcp_fin_wait2": counts["FIN_WAIT2"],
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"tcp_time_wait": counts["TIME_WAIT"],
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"tcp_close": counts["CLOSE"],
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"tcp_close_wait": counts["CLOSE_WAIT"],
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"tcp_last_ack": counts["LAST_ACK"],
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"tcp_listen": counts["LISTEN"],
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"tcp_closing": counts["CLOSING"],
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"tcp_none": counts["NONE"],
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"udp_socket": counts["UDP"],
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}
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acc.AddFields("netstat", fields, tags)
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return nil
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}
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func init() {
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inputs.Add("netstat", func() telegraf.Input {
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return &NetStats{ps: &systemPS{}}
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})
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}
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