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tailscale/hostinfo/hostinfo_freebsd.go

66 lines
1.4 KiB
Go

// Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build freebsd
// +build freebsd
package hostinfo
import (
"bytes"
"os"
"os/exec"
"golang.org/x/sys/unix"
"tailscale.com/version/distro"
)
func init() {
osVersion = lazyOSVersion.Get
distroName = distroNameFreeBSD
distroVersion = distroVersionFreeBSD
}
var (
lazyVersionMeta = &lazyAtomicValue[versionMeta]{f: ptrTo(freebsdVersionMeta)}
lazyOSVersion = &lazyAtomicValue[string]{f: ptrTo(osVersionFreeBSD)}
)
func distroNameFreeBSD() string {
return lazyVersionMeta.Get().DistroName
}
func distroVersionFreeBSD() string {
return lazyVersionMeta.Get().DistroVersion
}
type versionMeta struct {
DistroName string
DistroVersion string
DistroCodeName string
}
func osVersionFreeBSD() string {
var un unix.Utsname
unix.Uname(&un)
return unix.ByteSliceToString(un.Release[:])
}
func freebsdVersionMeta() (meta versionMeta) {
d := distro.Get()
meta.DistroName = string(d)
switch d {
case distro.Pfsense:
b, _ := os.ReadFile("/etc/version")
meta.DistroVersion = string(bytes.TrimSpace(b))
case distro.OPNsense:
b, _ := exec.Command("opnsense-version").Output()
meta.DistroVersion = string(bytes.TrimSpace(b))
case distro.TrueNAS:
b, _ := os.ReadFile("/etc/version")
meta.DistroVersion = string(bytes.TrimSpace(b))
}
return
}