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snmp_ifaces.go
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snmp_ifaces.go
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package collectors
import (
"fmt"
"strings"
"time"
"bosun.org/cmd/scollector/conf"
"bosun.org/metadata"
"bosun.org/opentsdb"
)
const (
ifAlias = ".1.3.6.1.2.1.31.1.1.1.18"
ifDescr = ".1.3.6.1.2.1.2.2.1.2"
ifType = ".1.3.6.1.2.1.2.2.1.3"
ifMTU = ".1.3.6.1.2.1.2.2.1.4"
ifPhysAddress = ".1.3.6.1.2.1.2.2.1.6"
ifHighSpeed = ".1.3.6.1.2.1.31.1.1.1.15"
ifAdminStatus = ".1.3.6.1.2.1.2.2.1.7"
ifOperStatus = ".1.3.6.1.2.1.2.2.1.8"
ifHCInBroadcastPkts = ".1.3.6.1.2.1.31.1.1.1.9"
ifHCInMulticastPkts = ".1.3.6.1.2.1.31.1.1.1.8"
ifHCInUcastPkts = ".1.3.6.1.2.1.31.1.1.1.7"
ifHCOutBroadcastPkts = ".1.3.6.1.2.1.31.1.1.1.13"
ifHCOutMulticastPkts = ".1.3.6.1.2.1.31.1.1.1.12"
ifHCOutOctets = ".1.3.6.1.2.1.31.1.1.1.10"
ifHCOutUcastPkts = ".1.3.6.1.2.1.31.1.1.1.11"
ifHCinOctets = ".1.3.6.1.2.1.31.1.1.1.6"
ifInDiscards = ".1.3.6.1.2.1.2.2.1.13"
ifInErrors = ".1.3.6.1.2.1.2.2.1.14"
ifInPauseFrames = ".1.3.6.1.2.1.10.7.10.1.3"
ifName = ".1.3.6.1.2.1.31.1.1.1.1"
ifOutDiscards = ".1.3.6.1.2.1.2.2.1.19"
ifOutErrors = ".1.3.6.1.2.1.2.2.1.20"
ifOutPauseFrames = ".1.3.6.1.2.1.10.7.10.1.4"
)
// SNMPIfaces registers a SNMP Interfaces collector for the given community and host.
func SNMPIfaces(cfg conf.SNMP) {
collectors = append(collectors, &IntervalCollector{
F: func() (opentsdb.MultiDataPoint, error) {
return c_snmp_ifaces(cfg.Community, cfg.Host)
},
Interval: time.Second * 30,
name: fmt.Sprintf("snmp-ifaces-%s", cfg.Host),
})
}
const osNet = "os.net"
func switchInterfaceMetric(metric string, iname string, ifType int64) string {
switch ifType {
case 6:
return metric
case 53, 161:
return osNet + ".bond" + strings.TrimPrefix(metric, osNet)
case 135:
return osNet + ".virtual" + strings.TrimPrefix(metric, osNet)
case 131:
return osNet + ".tunnel" + strings.TrimPrefix(metric, osNet)
default:
//Cisco ASAs don't mark port channels correctly
if strings.Contains(iname, "port-channel") {
return osNet + ".bond" + strings.TrimPrefix(metric, osNet)
}
return osNet + ".other" + strings.TrimPrefix(metric, osNet)
}
}
func c_snmp_ifaces(community, host string) (opentsdb.MultiDataPoint, error) {
ifNamesRaw, err := snmp_subtree(host, community, ifName)
if err != nil || len(ifNamesRaw) == 0 {
ifNamesRaw, err = snmp_subtree(host, community, ifDescr)
if err != nil {
return nil, err
}
}
ifAliasesRaw, err := snmp_subtree(host, community, ifAlias)
if err != nil {
return nil, err
}
ifTypesRaw, err := snmp_subtree(host, community, ifType)
if err != nil {
return nil, err
}
ifPhysAddressRaw, err := snmp_subtree(host, community, ifPhysAddress)
if err != nil {
return nil, err
}
ifNames := make(map[interface{}]string, len(ifNamesRaw))
ifAliases := make(map[interface{}]string, len(ifAliasesRaw))
ifTypes := make(map[interface{}]int64, len(ifTypesRaw))
ifPhysAddresses := make(map[interface{}]string, len(ifPhysAddressRaw))
for k, v := range ifNamesRaw {
ifNames[k] = fmt.Sprintf("%s", v)
}
for k, v := range ifTypesRaw {
val, ok := v.(int64)
if !ok {
return nil, fmt.Errorf("unexpected type from from MIB::ifType")
}
ifTypes[k] = val
}
for k, v := range ifAliasesRaw {
// In case clean would come up empty, prevent the point from being removed
// by setting our own empty case.
ifAliases[k], _ = opentsdb.Clean(fmt.Sprintf("%s", v))
if ifAliases[k] == "" {
ifAliases[k] = "NA"
}
}
for k, v := range ifPhysAddressRaw {
ifPhysAddresses[k] = fmt.Sprintf("%X", v)
}
var md opentsdb.MultiDataPoint
add := func(sA snmpAdd) error {
m, err := snmp_subtree(host, community, sA.oid)
if err != nil {
return err
}
var sum int64
for k, v := range m {
tags := opentsdb.TagSet{
"host": host,
"iface": fmt.Sprintf("%s", k),
"iname": ifNames[k],
}
if sA.dir != "" {
tags["direction"] = sA.dir
}
if iVal, ok := v.(int64); ok && ifTypes[k] == 6 {
sum += iVal
}
Add(&md, switchInterfaceMetric(sA.metric, ifNames[k], ifTypes[k]), v, tags, sA.rate, sA.unit, sA.desc)
metadata.AddMeta("", tags, "alias", ifAliases[k], false)
metadata.AddMeta("", tags, "mac", ifPhysAddresses[k], false)
}
if sA.metric == osNetBytes {
tags := opentsdb.TagSet{"host": host, "direction": sA.dir}
Add(&md, osNetBytes+".total", sum, tags, metadata.Counter, metadata.Bytes, "The total number of bytes transfered through the network device.")
}
return nil
}
oids := []snmpAdd{
{ifHCInBroadcastPkts, osNetBroadcast, "in", metadata.Counter, metadata.Packet, osNetBroadcastDesc},
{ifHCInMulticastPkts, osNetMulticast, "in", metadata.Counter, metadata.Packet, osNetMulticastDesc},
{ifHCInUcastPkts, osNetUnicast, "in", metadata.Counter, metadata.Packet, osNetUnicastDesc},
{ifHCOutBroadcastPkts, osNetBroadcast, "out", metadata.Counter, metadata.Packet, osNetBroadcastDesc},
{ifHCOutMulticastPkts, osNetMulticast, "out", metadata.Counter, metadata.Packet, osNetMulticastDesc},
{ifHCOutOctets, osNetBytes, "out", metadata.Counter, metadata.Bytes, osNetBytesDesc},
{ifHCOutUcastPkts, osNetUnicast, "out", metadata.Counter, metadata.Packet, osNetUnicastDesc},
{ifHCinOctets, osNetBytes, "in", metadata.Counter, metadata.Bytes, osNetBytesDesc},
{ifInDiscards, osNetDropped, "in", metadata.Counter, metadata.Packet, osNetDroppedDesc},
{ifInErrors, osNetErrors, "in", metadata.Counter, metadata.Error, osNetErrorsDesc},
{ifOutDiscards, osNetDropped, "out", metadata.Counter, metadata.Packet, osNetDroppedDesc},
{ifOutErrors, osNetErrors, "out", metadata.Counter, metadata.Error, osNetErrorsDesc},
{ifInPauseFrames, osNetPauseFrames, "in", metadata.Counter, metadata.Frame, osNetPauseFrameDesc},
{ifOutPauseFrames, osNetPauseFrames, "out", metadata.Counter, metadata.Frame, osNetPauseFrameDesc},
{ifMTU, osNetMTU, "", metadata.Gauge, metadata.Bytes, osNetMTUDesc},
{ifHighSpeed, osNetIfSpeed, "", metadata.Gauge, metadata.Megabit, osNetIfSpeedDesc},
{ifAdminStatus, osNetAdminStatus, "", metadata.Gauge, metadata.StatusCode, osNetAdminStatusDesc},
{ifOperStatus, osNetOperStatus, "", metadata.Gauge, metadata.StatusCode, osNetOperStatusDesc},
}
for _, sA := range oids {
if err := add(sA); err != nil {
return nil, err
}
}
return md, nil
}
type snmpAdd struct {
oid string
metric string
dir string
rate metadata.RateType
unit metadata.Unit
desc string
}