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// SPDX-License-Identifier: GPL-3.0-or-later
package dnsmasq_dhcp
import (
"fmt"
"strings"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
)
const (
prioDHCPRangeUtilization = module.Priority + iota
prioDHCPRangeAllocatesLeases
prioDHCPRanges
prioDHCPHosts
)
var charts = module.Charts{
{
ID: "dhcp_ranges",
Title: "Number of DHCP Ranges",
Units: "ranges",
Fam: "dhcp ranges",
Ctx: "dnsmasq_dhcp.dhcp_ranges",
Type: module.Stacked,
Priority: prioDHCPRanges,
Dims: module.Dims{
{ID: "ipv4_dhcp_ranges", Name: "ipv4"},
{ID: "ipv6_dhcp_ranges", Name: "ipv6"},
},
},
{
ID: "dhcp_hosts",
Title: "Number of DHCP Hosts",
Units: "hosts",
Fam: "dhcp hosts",
Ctx: "dnsmasq_dhcp.dhcp_host",
Type: module.Stacked,
Priority: prioDHCPHosts,
Dims: module.Dims{
{ID: "ipv4_dhcp_hosts", Name: "ipv4"},
{ID: "ipv6_dhcp_hosts", Name: "ipv6"},
},
},
}
var (
chartsTmpl = module.Charts{
chartTmplDHCPRangeUtilization.Copy(),
chartTmplDHCPRangeAllocatedLeases.Copy(),
}
)
var (
chartTmplDHCPRangeUtilization = module.Chart{
ID: "dhcp_range_%s_utilization",
Title: "DHCP Range utilization",
Units: "percentage",
Fam: "dhcp range utilization",
Ctx: "dnsmasq_dhcp.dhcp_range_utilization",
Type: module.Area,
Priority: prioDHCPRangeUtilization,
Dims: module.Dims{
{ID: "dhcp_range_%s_utilization", Name: "used"},
},
}
chartTmplDHCPRangeAllocatedLeases = module.Chart{
ID: "dhcp_range_%s_allocated_leases",
Title: "DHCP Range Allocated Leases",
Units: "leases",
Fam: "dhcp range leases",
Ctx: "dnsmasq_dhcp.dhcp_range_allocated_leases",
Priority: prioDHCPRangeAllocatesLeases,
Dims: module.Dims{
{ID: "dhcp_range_%s_allocated_leases", Name: "leases"},
},
}
)
func newDHCPRangeCharts(dhcpRange string) *module.Charts {
charts := chartsTmpl.Copy()
for _, c := range *charts {
c.ID = fmt.Sprintf(c.ID, dhcpRange)
c.Labels = []module.Label{
{Key: "dhcp_range", Value: dhcpRange},
}
for _, d := range c.Dims {
d.ID = fmt.Sprintf(d.ID, dhcpRange)
}
}
return charts
}
func (d *DnsmasqDHCP) addDHCPRangeCharts(dhcpRange string) {
charts := newDHCPRangeCharts(dhcpRange)
if err := d.Charts().Add(*charts...); err != nil {
d.Warning(err)
}
}
func (d *DnsmasqDHCP) removeDHCPRangeCharts(dhcpRange string) {
p := "dhcp_range_" + dhcpRange
for _, c := range *d.Charts() {
if strings.HasSuffix(c.ID, p) {
c.MarkRemove()
c.MarkNotCreated()
}
}
}
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