nebula/message_metrics.go

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package nebula
import (
"fmt"
"github.com/rcrowley/go-metrics"
"github.com/slackhq/nebula/header"
)
//TODO: this can probably move into the header package
type MessageMetrics struct {
rx [][]metrics.Counter
tx [][]metrics.Counter
rxUnknown metrics.Counter
txUnknown metrics.Counter
}
func (m *MessageMetrics) Rx(t header.MessageType, s header.MessageSubType, i int64) {
if m != nil {
if t >= 0 && int(t) < len(m.rx) && s >= 0 && int(s) < len(m.rx[t]) {
m.rx[t][s].Inc(i)
} else if m.rxUnknown != nil {
m.rxUnknown.Inc(i)
}
}
}
func (m *MessageMetrics) Tx(t header.MessageType, s header.MessageSubType, i int64) {
if m != nil {
if t >= 0 && int(t) < len(m.tx) && s >= 0 && int(s) < len(m.tx[t]) {
m.tx[t][s].Inc(i)
} else if m.txUnknown != nil {
m.txUnknown.Inc(i)
}
}
}
func newMessageMetrics() *MessageMetrics {
gen := func(t string) [][]metrics.Counter {
return [][]metrics.Counter{
{
metrics.GetOrRegisterCounter(fmt.Sprintf("messages.%s.handshake_ixpsk0", t), nil),
},
nil,
{metrics.GetOrRegisterCounter(fmt.Sprintf("messages.%s.recv_error", t), nil)},
{metrics.GetOrRegisterCounter(fmt.Sprintf("messages.%s.lighthouse", t), nil)},
{
metrics.GetOrRegisterCounter(fmt.Sprintf("messages.%s.test_request", t), nil),
metrics.GetOrRegisterCounter(fmt.Sprintf("messages.%s.test_response", t), nil),
},
{metrics.GetOrRegisterCounter(fmt.Sprintf("messages.%s.close_tunnel", t), nil)},
}
}
return &MessageMetrics{
rx: gen("rx"),
tx: gen("tx"),
rxUnknown: metrics.GetOrRegisterCounter("messages.rx.other", nil),
txUnknown: metrics.GetOrRegisterCounter("messages.tx.other", nil),
}
}
// Historically we only recorded recv_error, so this is backwards compat
func newMessageMetricsOnlyRecvError() *MessageMetrics {
gen := func(t string) [][]metrics.Counter {
return [][]metrics.Counter{
nil,
nil,
{metrics.GetOrRegisterCounter(fmt.Sprintf("messages.%s.recv_error", t), nil)},
}
}
return &MessageMetrics{
rx: gen("rx"),
tx: gen("tx"),
}
}
func newLighthouseMetrics() *MessageMetrics {
gen := func(t string) [][]metrics.Counter {
h := make([][]metrics.Counter, len(NebulaMeta_MessageType_name))
used := []NebulaMeta_MessageType{
NebulaMeta_HostQuery,
NebulaMeta_HostQueryReply,
NebulaMeta_HostUpdateNotification,
NebulaMeta_HostPunchNotification,
}
for _, i := range used {
h[i] = []metrics.Counter{metrics.GetOrRegisterCounter(fmt.Sprintf("lighthouse.%s.%s", t, i.String()), nil)}
}
return h
}
return &MessageMetrics{
rx: gen("rx"),
tx: gen("tx"),
rxUnknown: metrics.GetOrRegisterCounter("lighthouse.rx.other", nil),
txUnknown: metrics.GetOrRegisterCounter("lighthouse.tx.other", nil),
}
}