1 files changed, 110 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/dnsmasq_dhcp/dhcp.go b/src/go/collectors/go.d.plugin/modules/dnsmasq_dhcp/dhcp.go
new file mode 100644
index 000000000..d294647ee
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/dnsmasq_dhcp/dhcp.go
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package dnsmasq_dhcp
+
+import (
+	_ "embed"
+	"errors"
+	"net"
+	"time"
+
+	"github.com/netdata/netdata/go/go.d.plugin/agent/module"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/iprange"
+)
+
+//go:embed "config_schema.json"
+var configSchema string
+
+func init() {
+	module.Register("dnsmasq_dhcp", module.Creator{
+		JobConfigSchema: configSchema,
+		Create:          func() module.Module { return New() },
+	})
+}
+
+func New() *DnsmasqDHCP {
+	return &DnsmasqDHCP{
+		Config: Config{
+			// debian defaults
+			LeasesPath: "/var/lib/misc/dnsmasq.leases",
+			ConfPath:   "/etc/dnsmasq.conf",
+			ConfDir:    "/etc/dnsmasq.d,.dpkg-dist,.dpkg-old,.dpkg-new",
+		},
+		charts:           charts.Copy(),
+		parseConfigEvery: time.Minute,
+		cacheDHCPRanges:  make(map[string]bool),
+		mx:               make(map[string]int64),
+	}
+}
+
+type Config struct {
+	UpdateEvery int    `yaml:"update_every" json:"update_every"`
+	LeasesPath  string `yaml:"leases_path" json:"leases_path"`
+	ConfPath    string `yaml:"conf_path" json:"conf_path"`
+	ConfDir     string `yaml:"conf_dir" json:"conf_dir"`
+}
+
+type DnsmasqDHCP struct {
+	module.Base
+	Config `yaml:",inline" json:""`
+
+	charts *module.Charts
+
+	leasesModTime    time.Time
+	parseConfigTime  time.Time
+	parseConfigEvery time.Duration
+	dhcpRanges       []iprange.Range
+	dhcpHosts        []net.IP
+	cacheDHCPRanges  map[string]bool
+
+	mx map[string]int64
+}
+
+func (d *DnsmasqDHCP) Configuration() any {
+	return d.Config
+}
+
+func (d *DnsmasqDHCP) Init() error {
+	if err := d.validateConfig(); err != nil {
+		d.Errorf("config validation: %v", err)
+		return err
+	}
+	if err := d.checkLeasesPath(); err != nil {
+		d.Errorf("leases path check: %v", err)
+		return err
+	}
+
+	return nil
+}
+
+func (d *DnsmasqDHCP) Check() error {
+	mx, err := d.collect()
+	if err != nil {
+		d.Error(err)
+		return err
+	}
+	if len(mx) == 0 {
+		return errors.New("no metrics collected")
+
+	}
+	return nil
+}
+
+func (d *DnsmasqDHCP) Charts() *module.Charts {
+	return d.charts
+}
+
+func (d *DnsmasqDHCP) Collect() map[string]int64 {
+	mx, err := d.collect()
+	if err != nil {
+		d.Error(err)
+	}
+
+	if len(mx) == 0 {
+		return nil
+	}
+
+	return mx
+}
+
+func (d *DnsmasqDHCP) Cleanup() {}