From 6f5cd7465b63f8d05eec4b42db31416d7b8ffe48 Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Mon, 30 Oct 2017 17:27:45 +0000
Subject: [PATCH] Update ALPN protos

---
 scripts/tls-alpn.nse | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/scripts/tls-alpn.nse b/scripts/tls-alpn.nse
index 98ec771fe..8ffcb5180 100644
--- a/scripts/tls-alpn.nse
+++ b/scripts/tls-alpn.nse
@@ -157,6 +157,7 @@ end
 
 action = function(host, port)
   local alpn_protos = {
+    -- IANA-registered names
     "http/1.1",
     "spdy/1",
     "spdy/2",
@@ -164,13 +165,15 @@ action = function(host, port)
     "stun.turn",
     "stun.nat-discovery",
     "h2",
-    "h2c",
+    "h2c", -- should never be negotiated over TLS
     "webrtc",
     "c-webrtc",
     "ftp",
     "imap",
     "pop3",
     "managesieve",
+    -- Other sources
+    "grpc-exp", -- gRPC, see grpc.io
   }
 
   local chosen = {}