prometheusmetricshost-metricsmachine-metricsnode-metricsprocfsprometheus-exportersystem-informationsystem-metrics
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74 lines
2.1 KiB
74 lines
2.1 KiB
// Copyright 2020 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 |
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// +build !nonetdev |
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package collector |
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import ( |
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"github.com/go-kit/log" |
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"github.com/go-kit/log/level" |
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"golang.org/x/sys/unix" |
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"unsafe" |
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) |
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func getNetDevStats(filter *netDevFilter, logger log.Logger) (netDevStats, error) { |
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netDev := netDevStats{} |
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mib := [6]_C_int{unix.CTL_NET, unix.AF_ROUTE, 0, 0, unix.NET_RT_IFLIST, 0} |
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buf, err := sysctl(mib[:]) |
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if err != nil { |
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return nil, err |
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} |
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n := uintptr(len(buf)) |
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index := uintptr(unsafe.Pointer(&buf[0])) |
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next := uintptr(0) |
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var rtm *unix.RtMsghdr |
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for next = index; next < (index + n); next += uintptr(rtm.Msglen) { |
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rtm = (*unix.RtMsghdr)(unsafe.Pointer(next)) |
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if rtm.Version != unix.RTM_VERSION || rtm.Type != unix.RTM_IFINFO { |
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continue |
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} |
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ifm := (*unix.IfMsghdr)(unsafe.Pointer(next)) |
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if ifm.Addrs&unix.RTA_IFP == 0 { |
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continue |
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} |
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dl := (*unix.RawSockaddrDatalink)(unsafe.Pointer(next + uintptr(rtm.Hdrlen))) |
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if dl.Family != unix.AF_LINK { |
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continue |
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} |
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data := ifm.Data |
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dev := int8ToString(dl.Data[:dl.Nlen]) |
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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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netDev[dev] = map[string]uint64{ |
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"receive_packets": data.Ipackets, |
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"transmit_packets": data.Opackets, |
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"receive_errs": data.Ierrors, |
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"transmit_errs": data.Oerrors, |
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"receive_bytes": data.Ibytes, |
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"transmit_bytes": data.Obytes, |
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"receive_multicast": data.Imcasts, |
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"transmit_multicast": data.Omcasts, |
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"receive_drop": data.Iqdrops, |
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} |
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} |
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return netDev, nil |
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}
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