diff options
Diffstat (limited to '')
-rw-r--r-- | src/go/plugin/go.d/modules/dnsmasq_dhcp/dhcp.go | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/go/plugin/go.d/modules/dnsmasq_dhcp/dhcp.go b/src/go/plugin/go.d/modules/dnsmasq_dhcp/dhcp.go new file mode 100644 index 000000000..de56723f7 --- /dev/null +++ b/src/go/plugin/go.d/modules/dnsmasq_dhcp/dhcp.go @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +package dnsmasq_dhcp + +import ( + _ "embed" + "errors" + "net" + "time" + + "github.com/netdata/netdata/go/plugins/plugin/go.d/agent/module" + "github.com/netdata/netdata/go/plugins/plugin/go.d/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() }, + Config: func() any { return &Config{} }, + }) +} + +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,omitempty" json:"update_every"` + LeasesPath string `yaml:"leases_path" json:"leases_path"` + ConfPath string `yaml:"conf_path,omitempty" json:"conf_path"` + ConfDir string `yaml:"conf_dir,omitempty" 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() {} |