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Diffstat (limited to 'control/controlhttp/client.go')
-rw-r--r--control/controlhttp/client.go5
1 files changed, 5 insertions, 0 deletions
diff --git a/control/controlhttp/client.go b/control/controlhttp/client.go
index c9db75025..62bdce556 100644
--- a/control/controlhttp/client.go
+++ b/control/controlhttp/client.go
@@ -50,6 +50,10 @@ const (
// payload, to save an RTT.
handshakeHeaderName = "X-Tailscale-Handshake"
+ // serverPubHeaderName is the HTTP request header that
+ // says the expected public key of the control plane.
+ serverPubHeaderName = "X-Tailscale-Control-Public"
+
// serverUpgradePath is where the server-side HTTP handler to
// to do the protocol switch is located.
serverUpgradePath = "/ts2021"
@@ -194,6 +198,7 @@ func (a *dialParams) tryURL(u *url.URL, init []byte) (net.Conn, error) {
"Upgrade": []string{upgradeHeaderValue},
"Connection": []string{"upgrade"},
handshakeHeaderName: []string{base64.StdEncoding.EncodeToString(init)},
+ serverPubHeaderName: []string{a.controlKey.String()},
},
}
req = req.WithContext(ctx)