mirror of
https://github.com/tailscale/tailscale.git
synced 2024-12-04 23:45:34 +00:00
306deea03a
Similar to Arch support, use the latest version info from the official `apk` repo and don't offer explicit track or version switching. Add detection for Alpine Linux in version/distro along the way. Updates #6995 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
150 lines
3.3 KiB
Go
150 lines
3.3 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
// Package distro reports which distro we're running on.
|
|
package distro
|
|
|
|
import (
|
|
"bytes"
|
|
"io"
|
|
"os"
|
|
"runtime"
|
|
"strconv"
|
|
|
|
"tailscale.com/types/lazy"
|
|
"tailscale.com/util/lineread"
|
|
)
|
|
|
|
type Distro string
|
|
|
|
const (
|
|
Debian = Distro("debian")
|
|
Arch = Distro("arch")
|
|
Synology = Distro("synology")
|
|
OpenWrt = Distro("openwrt")
|
|
NixOS = Distro("nixos")
|
|
QNAP = Distro("qnap")
|
|
Pfsense = Distro("pfsense")
|
|
OPNsense = Distro("opnsense")
|
|
TrueNAS = Distro("truenas")
|
|
Gokrazy = Distro("gokrazy")
|
|
WDMyCloud = Distro("wdmycloud")
|
|
Unraid = Distro("unraid")
|
|
Alpine = Distro("alpine")
|
|
)
|
|
|
|
var distro lazy.SyncValue[Distro]
|
|
var isWSL lazy.SyncValue[bool]
|
|
|
|
// Get returns the current distro, or the empty string if unknown.
|
|
func Get() Distro {
|
|
return distro.Get(func() Distro {
|
|
switch runtime.GOOS {
|
|
case "linux":
|
|
return linuxDistro()
|
|
case "freebsd":
|
|
return freebsdDistro()
|
|
default:
|
|
return Distro("")
|
|
}
|
|
})
|
|
}
|
|
|
|
// IsWSL reports whether we're running in the Windows Subsystem for Linux.
|
|
func IsWSL() bool {
|
|
return runtime.GOOS == "linux" && isWSL.Get(func() bool {
|
|
// We could look for $WSL_INTEROP instead, however that may be missing if
|
|
// the user has started to use systemd in WSL2.
|
|
return have("/proc/sys/fs/binfmt_misc/WSLInterop") || have("/mnt/wsl")
|
|
})
|
|
}
|
|
|
|
func have(file string) bool {
|
|
_, err := os.Stat(file)
|
|
return err == nil
|
|
}
|
|
|
|
func haveDir(file string) bool {
|
|
fi, err := os.Stat(file)
|
|
return err == nil && fi.IsDir()
|
|
}
|
|
|
|
func linuxDistro() Distro {
|
|
switch {
|
|
case haveDir("/usr/syno"):
|
|
return Synology
|
|
case have("/usr/local/bin/freenas-debug"):
|
|
// TrueNAS Scale runs on debian
|
|
return TrueNAS
|
|
case have("/etc/debian_version"):
|
|
return Debian
|
|
case have("/etc/arch-release"):
|
|
return Arch
|
|
case have("/etc/openwrt_version"):
|
|
return OpenWrt
|
|
case have("/run/current-system/sw/bin/nixos-version"):
|
|
return NixOS
|
|
case have("/etc/config/uLinux.conf"):
|
|
return QNAP
|
|
case haveDir("/gokrazy"):
|
|
return Gokrazy
|
|
case have("/usr/local/wdmcserver/bin/wdmc.xml"): // Western Digital MyCloud OS3
|
|
return WDMyCloud
|
|
case have("/usr/sbin/wd_crontab.sh"): // Western Digital MyCloud OS5
|
|
return WDMyCloud
|
|
case have("/etc/unraid-version"):
|
|
return Unraid
|
|
case have("/etc/alpine-release"):
|
|
return Alpine
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func freebsdDistro() Distro {
|
|
switch {
|
|
case have("/etc/pfSense-rc"):
|
|
return Pfsense
|
|
case have("/usr/local/sbin/opnsense-shell"):
|
|
return OPNsense
|
|
case have("/usr/local/bin/freenas-debug"):
|
|
// TrueNAS Core runs on FreeBSD
|
|
return TrueNAS
|
|
}
|
|
return ""
|
|
}
|
|
|
|
var dsmVersion lazy.SyncValue[int]
|
|
|
|
// DSMVersion reports the Synology DSM major version.
|
|
//
|
|
// If not Synology, it reports 0.
|
|
func DSMVersion() int {
|
|
if runtime.GOOS != "linux" {
|
|
return 0
|
|
}
|
|
return dsmVersion.Get(func() int {
|
|
if Get() != Synology {
|
|
return 0
|
|
}
|
|
// This is set when running as a package:
|
|
v, _ := strconv.Atoi(os.Getenv("SYNOPKG_DSM_VERSION_MAJOR"))
|
|
if v != 0 {
|
|
return v
|
|
}
|
|
// But when run from the command line, we have to read it from the file:
|
|
lineread.File("/etc/VERSION", func(line []byte) error {
|
|
line = bytes.TrimSpace(line)
|
|
if string(line) == `majorversion="7"` {
|
|
v = 7
|
|
return io.EOF
|
|
}
|
|
if string(line) == `majorversion="6"` {
|
|
v = 6
|
|
return io.EOF
|
|
}
|
|
return nil
|
|
})
|
|
return v
|
|
})
|
|
}
|