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// SPDX-License-Identifier: GPL-3.0-or-later
package isc_dhcpd
import (
"errors"
"fmt"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/iprange"
)
type ipPool struct {
name string
addresses iprange.Pool
}
func (d *DHCPd) validateConfig() error {
if d.Config.LeasesPath == "" {
return errors.New("'lease_path' parameter not set")
}
if len(d.Config.Pools) == 0 {
return errors.New("'pools' parameter not set")
}
for i, cfg := range d.Config.Pools {
if cfg.Name == "" {
return fmt.Errorf("'pools[%d]->pool.name' parameter not set", i+1)
}
if cfg.Networks == "" {
return fmt.Errorf("'pools[%d]->pool.networks' parameter not set", i+1)
}
}
return nil
}
func (d *DHCPd) initPools() ([]ipPool, error) {
var pools []ipPool
for i, cfg := range d.Pools {
rs, err := iprange.ParseRanges(cfg.Networks)
if err != nil {
return nil, fmt.Errorf("parse pools[%d]->pool.networks '%s' ('%s'): %v", i+1, cfg.Name, cfg.Networks, err)
}
if len(rs) != 0 {
pools = append(pools, ipPool{
name: cfg.Name,
addresses: rs,
})
}
}
return pools, nil
}
func (d *DHCPd) initCharts(pools []ipPool) (*module.Charts, error) {
charts := &module.Charts{}
if err := charts.Add(activeLeasesTotalChart.Copy()); err != nil {
return nil, err
}
chart := poolActiveLeasesChart.Copy()
if err := charts.Add(chart); err != nil {
return nil, err
}
for _, pool := range pools {
dim := &module.Dim{
ID: "pool_" + pool.name + "_active_leases",
Name: pool.name,
}
if err := chart.AddDim(dim); err != nil {
return nil, err
}
}
chart = poolUtilizationChart.Copy()
if err := charts.Add(chart); err != nil {
return nil, err
}
for _, pool := range pools {
dim := &module.Dim{
ID: "pool_" + pool.name + "_utilization",
Name: pool.name,
Div: precision,
}
if err := chart.AddDim(dim); err != nil {
return nil, err
}
}
return charts, nil
}
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