mirror of
https://github.com/prometheus/node_exporter.git
synced 2025-03-05 21:00:12 -08:00
92 lines
2.6 KiB
Go
92 lines
2.6 KiB
Go
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// Copyright 2024 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !nonetdev && netbsd
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// +build !nonetdev,netbsd
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package collector
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import (
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"errors"
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"fmt"
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"github.com/go-kit/log"
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"github.com/go-kit/log/level"
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"unsafe"
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)
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/*
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <ifaddrs.h>
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#include <net/if.h>
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*/
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import "C"
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func getNetDevStats(filter *deviceFilter, logger log.Logger) (netDevStats, error) {
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netDev := netDevStats{}
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var ifap, ifa *C.struct_ifaddrs
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if C.getifaddrs(&ifap) == -1 {
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return nil, errors.New("getifaddrs() failed")
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}
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defer C.freeifaddrs(ifap)
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for ifa = ifap; ifa != nil; ifa = ifa.ifa_next {
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if ifa.ifa_addr.sa_family != C.AF_LINK {
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continue
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}
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dev := C.GoString(ifa.ifa_name)
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if filter.ignored(dev) {
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level.Debug(logger).Log("msg", "Ignoring device", "device", dev)
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continue
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}
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data := (*C.struct_if_data)(ifa.ifa_data)
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// https://github.com/NetBSD/src/blob/trunk/sys/net/if.h#L180-L202
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netDev[dev] = map[string]uint64{
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"receive_packets": uint64(data.ifi_ipackets),
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"transmit_packets": uint64(data.ifi_opackets),
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"receive_bytes": uint64(data.ifi_ibytes),
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"transmit_bytes": uint64(data.ifi_obytes),
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"receive_errors": uint64(data.ifi_ierrors),
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"transmit_errors": uint64(data.ifi_oerrors),
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"receive_dropped": uint64(data.ifi_iqdrops),
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"receive_multicast": uint64(data.ifi_imcasts),
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"transmit_multicast": uint64(data.ifi_omcasts),
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"collisions": uint64(data.ifi_collisions),
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"noproto": uint64(data.ifi_noproto),
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}
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/*
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* transmit_dropped (ifi_oqdrops) is not available in
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* struct if_data for backwards compatibility reasons,
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* but can be read via sysctl.
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*/
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var ifi_oqdrops uint64
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var len C.size_t = C.size_t(unsafe.Sizeof(ifi_oqdrops))
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name := C.CString(fmt.Sprintf("net.interfaces.%s.sndq.drops", dev))
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defer C.free(unsafe.Pointer(name))
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if C.sysctlbyname(name, unsafe.Pointer(&ifi_oqdrops), (*C.size_t)(unsafe.Pointer(&len)), unsafe.Pointer(nil), 0) == 0 {
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netDev[dev]["transmit_dropped"] = ifi_oqdrops
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}
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}
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return netDev, nil
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}
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