Can't unset exit-node after setting it.

[krptg0]

Hi,

The extension allows me to select an exit node and proceeds to connect to it upon clicking, but when I want to get back to normal behavior, it asks for my password, but does nothing. Clicking on the tray icon still shows my exit node selected (and working).

The only logs i could find are in syslog :

Aug  3 10:15:22 HOSTNAME tailscaled[1375]: magicsock: ReSTUN("link-change-minor") ignored; stopped, no private key
Aug  3 10:15:23 HOSTNAMEtailscaled[1375]: open-conn-track: timeout opening (TCP 192.168.1.XXX:39842 => XXX.XXX.XXX.XXX in netmap but unknown to WireGuard

Thank you :)

[krptg0]

I'm adding more info on that :
Seems that it's tailscale own way of doing things: it remembers your last used arguments to re-run it when you type tailscale up
In essence :

- sudo tailscale up #does connect to tailscale
- sudo tailscale down #does disconnect from tailscale
- sudo tailscale up --exit=node=blabla #does connect using exit node blabla
- sudo tailscale down #does disconnect from tailscale
- sudo tailscale up #does connect using exit node blabla from save previous argument !

The only way to reset exit-node is to run tailscale up --exit-node=, yes, an empty string.
May that help you :)

[maxgallup]

I did in fact use "tailscale up --exit-node=", but there was a bug that prevented it from being used properly. But thanks for the detailed comments! Update to the latest version to have the changes committed :)

[krptg0]

@maxgallup it works ! I didn't test it right now but since you used a --reset arg, would it conflict when disabling exit node, it'll also disable accept routes option ?

[maxgallup]

@krptg0 You are exactly correct. I plan on finding a solution that doesn't use --reset, however this will require more digging around in the Tailscale docs, since at the moment I can't find a way to see if --accept-routes (for example) is turned on through the command line. tailscale status --json doesn't seem to offer that information so I might have to use tailscale's API? Suggestions welcome!

[krptg0]

Understood.
Could you leave this issue open since your last commit wasn't the perfect solution ?

[Aiq0]

It seems like you can use localapi - if you look in source code, you can find /localapi/v0/prefs
endpoint and you can retrieve info from it like this:

curl --unix-socket /run/tailscale/tailscaled.sock --header 'Host: ' http://localhost/localapi/v0/prefs

Output:

{
	"ControlURL": "https://controlplane.tailscale.com",
	"RouteAll": false,
	"AllowSingleHosts": true,
	"ExitNodeID": "",
	"ExitNodeIP": "",
	"ExitNodeAllowLANAccess": false,
	"CorpDNS": true,
	"RunSSH": false,
	"WantRunning": true,
	"LoggedOut": false,
	"ShieldsUp": false,
	"AdvertiseTags": null,
	"Hostname": "",
	"NotepadURLs": false,
	"AdvertiseRoutes": null,
	"NoSNAT": false,
	"NetfilterMode": 2,
	"OperatorUser": "user name",
	"Config": {
		"PrivateMachineKey": "privkey:a lot of numbers",
		"PrivateNodeKey": "privkey:a lot of numbers",
		"OldPrivateNodeKey": "privkey:a lot of numbers",
		"Provider": "some provider",
		"LoginName": "email",
		"UserProfile": {
			"ID": "some number",
			"LoginName": "email",
			"DisplayName": "user name",
			"ProfilePicURL": "url",
			"Roles": []
		},
		"NetworkLockKey": "nlpriv:a lot of numbers",
		"NodeID": "some node id"
	}
}

(we must set host to empty string, else you will get invalid localapi request)