1 files changed, 126 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/ntpd/ntpd.go b/src/go/collectors/go.d.plugin/modules/ntpd/ntpd.go
new file mode 100644
index 000000000..68d5c4700
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/ntpd/ntpd.go
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package ntpd
+
+import (
+	_ "embed"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/netdata/netdata/go/go.d.plugin/agent/module"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/iprange"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
+)
+
+//go:embed "config_schema.json"
+var configSchema string
+
+func init() {
+	module.Register("ntpd", module.Creator{
+		JobConfigSchema: configSchema,
+		Create:          func() module.Module { return New() },
+	})
+}
+
+func New() *NTPd {
+	return &NTPd{
+		Config: Config{
+			Address:      "127.0.0.1:123",
+			Timeout:      web.Duration(time.Second),
+			CollectPeers: false,
+		},
+		charts:         systemCharts.Copy(),
+		newClient:      newNTPClient,
+		findPeersEvery: time.Minute * 3,
+		peerAddr:       make(map[string]bool),
+	}
+}
+
+type Config struct {
+	UpdateEvery  int          `yaml:"update_every" json:"update_every"`
+	Address      string       `yaml:"address" json:"address"`
+	Timeout      web.Duration `yaml:"timeout" json:"timeout"`
+	CollectPeers bool         `yaml:"collect_peers" json:"collect_peers"`
+}
+
+type (
+	NTPd struct {
+		module.Base
+		Config `yaml:",inline" json:""`
+
+		charts *module.Charts
+
+		client    ntpConn
+		newClient func(c Config) (ntpConn, error)
+
+		findPeersTime    time.Time
+		findPeersEvery   time.Duration
+		peerAddr         map[string]bool
+		peerIDs          []uint16
+		peerIPAddrFilter iprange.Pool
+	}
+	ntpConn interface {
+		systemInfo() (map[string]string, error)
+		peerInfo(id uint16) (map[string]string, error)
+		peerIDs() ([]uint16, error)
+		close()
+	}
+)
+
+func (n *NTPd) Configuration() any {
+	return n.Config
+}
+
+func (n *NTPd) Init() error {
+	if n.Address == "" {
+		n.Error("config validation: 'address' can not be empty")
+		return errors.New("address not set")
+	}
+
+	txt := "0.0.0.0 127.0.0.0/8"
+	r, err := iprange.ParseRanges(txt)
+	if err != nil {
+		n.Errorf("error on parsing ip range '%s': %v", txt, err)
+		return fmt.Errorf("error on parsing ip range '%s': %v", txt, err)
+	}
+
+	n.peerIPAddrFilter = r
+
+	return nil
+}
+
+func (n *NTPd) Check() error {
+	mx, err := n.collect()
+	if err != nil {
+		n.Error(err)
+		return err
+	}
+	if len(mx) == 0 {
+		return errors.New("no metrics collected")
+	}
+	return nil
+}
+
+func (n *NTPd) Charts() *module.Charts {
+	return n.charts
+}
+
+func (n *NTPd) Collect() map[string]int64 {
+	mx, err := n.collect()
+	if err != nil {
+		n.Error(err)
+	}
+
+	if len(mx) == 0 {
+		return nil
+	}
+	return mx
+}
+
+func (n *NTPd) Cleanup() {
+	if n.client != nil {
+		n.client.close()
+		n.client = nil
+	}
+}