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8 Commits

Author SHA1 Message Date
Brad Fitzpatrick 8b81254992 ipn/ipnlocal: reject tailscale up --ssh if disabled on tailnet 
Updates #3802

Change-Id: I3f1e839391fe9b28270f506f4bb8d8e3d36716f5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-04-20 11:38:27 -07:00
Maisem Ali f4686a76a1
envknob: use the correct key when logging (#4319) 2022-03-29 14:04:12 -07:00
Brad Fitzpatrick d2f3ec8a63 envknob, ipn/ipnlocal: add SSH admin kill switch 
Updates #3802

Change-Id: I6127907446d1a6be1b097d9ba3b534f2b8eb707f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-03-23 15:40:30 -07:00
Josh Bleecher Snyder 0868329936 all: use any instead of interface{} 
My favorite part of generics.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2022-03-17 11:35:09 -07:00
Brad Fitzpatrick a19c110dd3 envknob: track, log env knobs in use 
Fixes #3921

Change-Id: I8186053b5c09c43f0358b4e7fdd131361a6d8f2e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-02-12 21:56:10 -08:00
Brad Fitzpatrick be9d564c29 envknob: remove some stutter from error messages 
The strconv errors already stringified with the same.

Change-Id: I6938c5653e9aafa6d9028d45fc26e39eb9ccbaea
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-02-12 16:36:15 -08:00
Brad Fitzpatrick f3c0023add wgengine/netstack: add an SSH server experiment 
Disabled by default.

To use, run tailscaled with:

    TS_SSH_ALLOW_LOGIN=you@bar.com

And enable with:

    $ TAILSCALE_USE_WIP_CODE=true tailscale up --ssh=true

Then ssh [any-user]@[your-tailscale-ip] for a root bash shell.
(both the "root" and "bash" part are temporary)

Updates #3802

Change-Id: I268f8c3c95c8eed5f3231d712a5dc89615a406f0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-01-24 19:14:13 -08:00
Brad Fitzpatrick 41fd4eab5c envknob: add new package for all the strconv.ParseBool(os.Getenv(..)) 
A new package can also later record/report which knobs are checked and
set. It also makes the code cleaner & easier to grep for env knobs.

Change-Id: Id8a123ab7539f1fadbd27e0cbeac79c2e4f09751
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2022-01-24 11:51:23 -08:00