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collector: add NetBSD support for netdev

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Signed-off-by: Tobias Nygren <tnn@NetBSD.org>
This commit is contained in:
Tobias Nygren 2024-07-28 02:39:15 +02:00
parent b9d0932179
commit e8dd999618
2 changed files with 93 additions and 2 deletions
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4
collector/netdev_common.go
View file

@ -11,9 +11,9 @@
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !nonetdev && (linux || freebsd || openbsd || dragonfly || darwin)
//go:build !nonetdev && (linux || freebsd || netbsd || openbsd || dragonfly || darwin)
// +build !nonetdev
// +build linux freebsd openbsd dragonfly darwin
// +build linux freebsd netbsd openbsd dragonfly darwin
package collector

91
collector/netdev_netbsd.go Normal file
View file

@ -0,0 +1,91 @@
// Copyright 2024 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 && netbsd
// +build !nonetdev,netbsd
package collector
import (
"errors"
"fmt"
"github.com/go-kit/log"
"github.com/go-kit/log/level"
"unsafe"
)
/*
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <ifaddrs.h>
#include <net/if.h>
*/
import "C"
func getNetDevStats(filter *deviceFilter, logger log.Logger) (netDevStats, error) {
netDev := netDevStats{}
var ifap, ifa *C.struct_ifaddrs
if C.getifaddrs(&ifap) == -1 {
return nil, errors.New("getifaddrs() failed")
}
defer C.freeifaddrs(ifap)
for ifa = ifap; ifa != nil; ifa = ifa.ifa_next {
if ifa.ifa_addr.sa_family != C.AF_LINK {
continue
}
dev := C.GoString(ifa.ifa_name)
if filter.ignored(dev) {
level.Debug(logger).Log("msg", "Ignoring device", "device", dev)
continue
}
data := (*C.struct_if_data)(ifa.ifa_data)
// https://github.com/NetBSD/src/blob/trunk/sys/net/if.h#L180-L202
netDev[dev] = map[string]uint64{
"receive_packets": uint64(data.ifi_ipackets),
"transmit_packets": uint64(data.ifi_opackets),
"receive_bytes": uint64(data.ifi_ibytes),
"transmit_bytes": uint64(data.ifi_obytes),
"receive_errors": uint64(data.ifi_ierrors),
"transmit_errors": uint64(data.ifi_oerrors),
"receive_dropped": uint64(data.ifi_iqdrops),
"receive_multicast": uint64(data.ifi_imcasts),
"transmit_multicast": uint64(data.ifi_omcasts),
"collisions": uint64(data.ifi_collisions),
"noproto": uint64(data.ifi_noproto),
}
/*
* transmit_dropped (ifi_oqdrops) is not available in
* struct if_data for backwards compatibility reasons,
* but can be read via sysctl.
*/
var ifi_oqdrops uint64
var len C.size_t = C.size_t(unsafe.Sizeof(ifi_oqdrops))
name := C.CString(fmt.Sprintf("net.interfaces.%s.sndq.drops", dev))
defer C.free(unsafe.Pointer(name))
if C.sysctlbyname(name, unsafe.Pointer(&ifi_oqdrops), (*C.size_t)(unsafe.Pointer(&len)), unsafe.Pointer(nil), 0) == 0 {
netDev[dev]["transmit_dropped"] = ifi_oqdrops
}
}
return netDev, nil
}