mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-29 13:05:46 +00:00
58a6c9b2b8
Now:
/tmp/breakglass3929186798 # /user/tailscale debug hostinfo
{
"IPNVersion": "1.23.0-date.20220107",
"OS": "linux",
"OSVersion": "Gokrazy; kernel=5.16.11",
"DeviceModel": "Raspberry Pi 4 Model B Rev 1.2",
"Hostname": "gokrazy",
"GoArch": "arm64"
}
Also, cache the distro lookup. It doesn't change while the program is
running:
name old time/op new time/op delta
Get-6 5.21µs ± 5% 0.00µs ± 3% -99.91% (p=0.008 n=5+5)
name old alloc/op new alloc/op delta
Get-6 792B ± 0% 0B -100.00% (p=0.008 n=5+5)
name old allocs/op new allocs/op delta
Get-6 8.00 ± 0% 0.00 -100.00% (p=0.008 n=5+5)
Updates #1866
Change-Id: Ifb9a63b94287010d3f4c8bfeb6b78119e8a9b203
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
92 lines
1.9 KiB
Go
92 lines
1.9 KiB
Go
// Copyright (c) 2020 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.
|
|
|
|
// Package distro reports which distro we're running on.
|
|
package distro
|
|
|
|
import (
|
|
"os"
|
|
"runtime"
|
|
"sync/atomic"
|
|
)
|
|
|
|
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")
|
|
)
|
|
|
|
var distroAtomic atomic.Value // of Distro
|
|
|
|
// Get returns the current distro, or the empty string if unknown.
|
|
func Get() Distro {
|
|
d, ok := distroAtomic.Load().(Distro)
|
|
if ok {
|
|
return d
|
|
}
|
|
switch runtime.GOOS {
|
|
case "linux":
|
|
d = linuxDistro()
|
|
case "freebsd":
|
|
d = freebsdDistro()
|
|
}
|
|
distroAtomic.Store(d) // even if empty
|
|
return d
|
|
}
|
|
|
|
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
|
|
}
|
|
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 ""
|
|
}
|