mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-26 03:25:35 +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.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package distro reports which distro we're running on.
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package distro
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import (
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"os"
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"runtime"
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"sync/atomic"
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)
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type Distro string
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const (
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Debian = Distro("debian")
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Arch = Distro("arch")
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Synology = Distro("synology")
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OpenWrt = Distro("openwrt")
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NixOS = Distro("nixos")
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QNAP = Distro("qnap")
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Pfsense = Distro("pfsense")
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OPNsense = Distro("opnsense")
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TrueNAS = Distro("truenas")
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Gokrazy = Distro("gokrazy")
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)
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var distroAtomic atomic.Value // of Distro
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// Get returns the current distro, or the empty string if unknown.
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func Get() Distro {
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d, ok := distroAtomic.Load().(Distro)
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if ok {
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return d
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}
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switch runtime.GOOS {
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case "linux":
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d = linuxDistro()
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case "freebsd":
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d = freebsdDistro()
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}
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distroAtomic.Store(d) // even if empty
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return d
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}
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func have(file string) bool {
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_, err := os.Stat(file)
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return err == nil
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}
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func haveDir(file string) bool {
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fi, err := os.Stat(file)
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return err == nil && fi.IsDir()
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}
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func linuxDistro() Distro {
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switch {
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case haveDir("/usr/syno"):
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return Synology
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case have("/usr/local/bin/freenas-debug"):
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// TrueNAS Scale runs on debian
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return TrueNAS
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case have("/etc/debian_version"):
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return Debian
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case have("/etc/arch-release"):
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return Arch
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case have("/etc/openwrt_version"):
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return OpenWrt
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case have("/run/current-system/sw/bin/nixos-version"):
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return NixOS
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case have("/etc/config/uLinux.conf"):
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return QNAP
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case haveDir("/gokrazy"):
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return Gokrazy
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}
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return ""
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}
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func freebsdDistro() Distro {
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switch {
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case have("/etc/pfSense-rc"):
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return Pfsense
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case have("/usr/local/sbin/opnsense-shell"):
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return OPNsense
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case have("/usr/local/bin/freenas-debug"):
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// TrueNAS Core runs on FreeBSD
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return TrueNAS
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}
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return ""
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}
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