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cmd/derper: add --stun-port flag

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And flesh out docs on the --http-port flag.

Change-Id: If9d42665f67409082081cb9a25ad74e98869337b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2022-03-08 07:12:07 -08:00 committed by Brad Fitzpatrick
parent 0588ca5d8b
commit 740e3c006c
1 changed files with 5 additions and 4 deletions
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9
cmd/derper/derper.go
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@ -39,7 +39,8 @@ import (
var ( var (
dev = flag.Bool("dev", false, "run in localhost development mode") dev = flag.Bool("dev", false, "run in localhost development mode")
addr = flag.String("a", ":443", "server HTTPS listen address, in form \":port\", \"ip:port\", or for IPv6 \"[ip]:port\". If the IP is omitted, it defaults to all interfaces.") addr = flag.String("a", ":443", "server HTTPS listen address, in form \":port\", \"ip:port\", or for IPv6 \"[ip]:port\". If the IP is omitted, it defaults to all interfaces.")
httpPort = flag.Int("http-port", 80, "The port on which to serve HTTP. Set to -1 to disable") httpPort = flag.Int("http-port", 80, "The port on which to serve HTTP. Set to -1 to disable. The listener is bound to the same IP (if any) as specified in the -a flag.")
stunPort = flag.Int("stun-port", 3478, "The UDP port on which to serve STUN. The listener is bound to the same IP (if any) as specified in the -a flag.")
configPath = flag.String("c", "", "config file path") configPath = flag.String("c", "", "config file path")
certMode = flag.String("certmode", "letsencrypt", "mode for getting a cert. possible options: manual, letsencrypt") certMode = flag.String("certmode", "letsencrypt", "mode for getting a cert. possible options: manual, letsencrypt")
certDir = flag.String("certdir", tsweb.DefaultCertDir("derper-certs"), "directory to store LetsEncrypt certs, if addr's port is :443") certDir = flag.String("certdir", tsweb.DefaultCertDir("derper-certs"), "directory to store LetsEncrypt certs, if addr's port is :443")
@ -212,7 +213,7 @@ func main() {
debug.Handle("traffic", "Traffic check", http.HandlerFunc(s.ServeDebugTraffic)) debug.Handle("traffic", "Traffic check", http.HandlerFunc(s.ServeDebugTraffic))
if *runSTUN { if *runSTUN {
go serveSTUN(listenHost) go serveSTUN(listenHost, *stunPort)
} }
httpsrv := &http.Server{ httpsrv := &http.Server{
@ -322,8 +323,8 @@ func probeHandler(w http.ResponseWriter, r *http.Request) {
} }
} }
func serveSTUN(host string) { func serveSTUN(host string, port int) {
pc, err := net.ListenPacket("udp", net.JoinHostPort(host, "3478")) pc, err := net.ListenPacket("udp", net.JoinHostPort(host, fmt.Sprint(port)))
if err != nil { if err != nil {
log.Fatalf("failed to open STUN listener: %v", err) log.Fatalf("failed to open STUN listener: %v", err)
} }