Make HTTP/1.1 protocol default (#309).

etc/tempesta_fw.conf

@@ -433,9 +433,9 @@
 # 'http/1.1' respectively. It is also possible to specify both protocols
 # separated by comma; in this case, the protocols' order is significant for
 # TLS ALPN: first specified protocol takes precedence over the last one in
-# negotiation procedure. If no application level protocol is given, then HTTP/2
-# is default. If the entire 'proto' option is absent, then plain HTTP protocol
-# (over TCP) is supposed by the default.
+# negotiation procedure. If no application level protocol is given, then
+# HTTP/1.1 is default. If the entire 'proto' option is absent, then plain
+# HTTP protocol (over TCP) is supposed by the default.
 #
 # Tempesta FW opens one socket for each 'listen' entry, so it may be repeated
 # to listen on multiple addresses/ports. For example:

tempesta_fw/tls.c

@@ -698,8 +698,8 @@ do {								\
 	if (unlikely(!protos))
 		return -ENOMEM;
 
-	/* Currently HTTP/2 protocol is default option. */
-	PROTO_INIT(0, HTTP2);
+	/* Currently HTTP/1.1 protocol is default option. */
+	PROTO_INIT(0, HTTP1);
 	tfw_tls.cfg.alpn_list = protos;
 
 	if (len == CONF_HTTPS_LEN)