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node_exporter/collector/netdev_linux.go

77 lines
2.4 KiB

// Copyright 2015 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.
//go:build !nonetdev
// +build !nonetdev
package collector
import (
"github.com/go-kit/log"
"github.com/go-kit/log/level"
"github.com/jsimonetti/rtnetlink"
)
func getNetDevStats(filter *deviceFilter, logger log.Logger) (netDevStats, error) {
conn, err := rtnetlink.Dial(nil)
if err != nil {
return nil, err
}
defer conn.Close()
links, err := conn.Link.List()
if err != nil {
return nil, err
}
return netlinkStats(links, filter, logger), nil
}
func netlinkStats(links []rtnetlink.LinkMessage, filter *deviceFilter, logger log.Logger) netDevStats {
metrics := netDevStats{}
for _, msg := range links {
name := msg.Attributes.Name
stats := msg.Attributes.Stats64
if filter.ignored(name) {
level.Debug(logger).Log("msg", "Ignoring device", "device", name)
continue
}
// https://github.com/torvalds/linux/blob/master/include/uapi/linux/if_link.h#L42-L246
// https://github.com/torvalds/linux/blob/master/net/core/net-procfs.c#L75-L97
metrics[name] = map[string]uint64{
"receive_packets": stats.RXPackets,
"transmit_packets": stats.TXPackets,
"receive_bytes": stats.RXBytes,
"transmit_bytes": stats.TXBytes,
"receive_errs": stats.RXErrors,
"transmit_errs": stats.TXErrors,
"receive_drop": stats.RXDropped + stats.RXMissedErrors,
"transmit_drop": stats.TXDropped,
"receive_multicast": stats.Multicast,
"transmit_colls": stats.Collisions,
"receive_frame": stats.RXLengthErrors + stats.RXOverErrors + stats.RXCRCErrors + stats.RXFrameErrors,
"receive_fifo": stats.RXFIFOErrors,
"transmit_carrier": stats.TXAbortedErrors + stats.TXCarrierErrors + stats.TXHeartbeatErrors + stats.TXWindowErrors,
"transmit_fifo": stats.TXFIFOErrors,
"receive_compressed": stats.RXCompressed,
"transmit_compressed": stats.TXCompressed,
}
}
return metrics
}