add tcp as supported protocol

cmd/cloudflared/access/cmd.go

@@ -115,7 +115,7 @@ func Commands() []*cli.Command {
 				{
 					Name:        "ssh",
 					Action:      ssh,
-					Aliases:     []string{"rdp"},
+					Aliases:     []string{"rdp", "tcp"},
 					Usage:       "",
 					ArgsUsage:   "",
 					Description: `The ssh subcommand sends data over a proxy to the Cloudflare edge.`,

cmd/cloudflared/tunnel/cmd.go

@@ -622,10 +622,19 @@ func hostnameFromURI(uri string) string {
 		return addPortIfMissing(u, 22)
 	case "rdp":
 		return addPortIfMissing(u, 3389)
+	case "tcp":
+		return errorIfPortMissing(u)
 	}
 	return ""
 }
 
+func errorIfPortMissing(uri *url.URL) string {
+	if uri.Port() == "" {
+		return "Port must be speficied for"
+	}
+	return uri.Host
+}
+
 func addPortIfMissing(uri *url.URL, port int) string {
 	if uri.Port() != "" {
 		return uri.Host

cmd/cloudflared/tunnel/cmd_test.go

@@ -12,6 +12,7 @@ func TestHostnameFromURI(t *testing.T) {
 	assert.Equal(t, "awesome.warptunnels.horse:2222", hostnameFromURI("ssh://awesome.warptunnels.horse:2222"))
 	assert.Equal(t, "localhost:3389", hostnameFromURI("rdp://localhost"))
 	assert.Equal(t, "localhost:3390", hostnameFromURI("rdp://localhost:3390"))
+	assert.Equal(t, "localhost:3306", hostnameFromURI("tcp://localhost:3306"))
 	assert.Equal(t, "", hostnameFromURI("trash"))
 	assert.Equal(t, "", hostnameFromURI("https://awesomesauce.com"))
 }

validation/validation.go

@@ -16,7 +16,7 @@ import (
 const defaultScheme = "http"
 
 var (
-	supportedProtocols = []string{"http", "https", "rdp"}
+	supportedProtocols = []string{"http", "https", "rdp", "tcp"}
 	validationTimeout = time.Duration(30 * time.Second)
 )