node_exporter/collector/netdev_openbsd_amd64.go

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// Copyright 2020 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !nonetdev
package collector
import (
"github.com/go-kit/kit/log"
"github.com/go-kit/kit/log/level"
"strconv"
"golang.org/x/sys/unix"
"regexp"
"unsafe"
)
func getNetDevStats(ignore *regexp.Regexp, accept *regexp.Regexp, logger log.Logger) (map[string]map[string]string, error) {
netDev := map[string]map[string]string{}
mib := [6]_C_int{unix.CTL_NET, unix.AF_ROUTE, 0, 0, unix.NET_RT_IFLIST, 0}
buf, err := sysctl(mib[:])
if err != nil {
return nil, err
}
n := uintptr(len(buf))
index := uintptr(unsafe.Pointer(&buf[0]))
next := uintptr(0)
var rtm *unix.RtMsghdr
for next = index; next < (index + n); next += uintptr(rtm.Msglen) {
rtm = (*unix.RtMsghdr)(unsafe.Pointer(next))
if rtm.Version != unix.RTM_VERSION || rtm.Type != unix.RTM_IFINFO {
continue
}
ifm := (*unix.IfMsghdr)(unsafe.Pointer(next))
if ifm.Addrs&unix.RTA_IFP == 0 {
continue
}
dl := (*unix.RawSockaddrDatalink)(unsafe.Pointer(next + uintptr(rtm.Hdrlen)))
if dl.Family != unix.AF_LINK {
continue
}
data := ifm.Data
dev := int8ToString(dl.Data[:dl.Nlen])
if ignore != nil && ignore.MatchString(dev) {
level.Debug(logger).Log("msg", "Ignoring device", "device", dev)
continue
}
if accept != nil && !accept.MatchString(dev) {
level.Debug(logger).Log("msg", "Ignoring device", "device", dev)
continue
}
devStats := map[string]string{}
devStats["receive_packets"] = strconv.Itoa(int(data.Ipackets))
devStats["transmit_packets"] = strconv.Itoa(int(data.Opackets))
devStats["receive_errs"] = strconv.Itoa(int(data.Ierrors))
devStats["transmit_errs"] = strconv.Itoa(int(data.Oerrors))
devStats["receive_bytes"] = strconv.Itoa(int(data.Ibytes))
devStats["transmit_bytes"] = strconv.Itoa(int(data.Obytes))
devStats["receive_multicast"] = strconv.Itoa(int(data.Imcasts))
devStats["transmit_multicast"] = strconv.Itoa(int(data.Omcasts))
devStats["receive_drop"] = strconv.Itoa(int(data.Iqdrops))
netDev[dev] = devStats
}
return netDev, nil
}