samples: net: dumb_http_server: Add zero configuration

Adds zero configuration based on LLMNR. This should be working in
Windows out of the box, zephyr can be accessed with http://zephyr/.
Can be combined with netusb configuration (RNDIS is supported in
Windows).

Signed-off-by: Andrei Emeltchenko <[email protected]>

Author: finikorg

samples/net/sockets/dumb_http_server/overlay-zeroconf.conf

@@ -0,0 +1,11 @@
+# Add hostname
+CONFIG_NET_HOSTNAME_ENABLE=y
+
+# IPv4 autoconfiguration
+CONFIG_NET_IPV4_AUTO=y
+
+# Remove static IP configuration
+CONFIG_NET_CONFIG_SETTINGS=n
+
+# Add LLMNR responder
+CONFIG_LLMNR_RESPONDER=y

samples/net/sockets/dumb_http_server/sample.yaml

@@ -21,3 +21,8 @@ tests:
     harness: net
     extra_args: OVERLAY_CONFIG="overlay-netusb.conf"
     tags: usb
+  sample.net.sockets.dumb_http_server.netusb_zeroconf:
+    depends_on: usb_device
+    harness: net
+    extra_args: OVERLAY_CONFIG="overlay-netusb.conf;overlay-zeroconf.conf"
+    tags: usb