samples: net: http-server: Add Wireguard VPN support

Add Wireguard configuration to http-server application.

Signed-off-by: Jukka Rissanen <[email protected]>

Author: jukkar

samples/net/sockets/http_server/CMakeLists.txt

@@ -43,6 +43,8 @@ set(gen_dir ${ZEPHYR_BINARY_DIR}/include/generated/)
 target_sources_ifdef(CONFIG_NET_SAMPLE_WEBSOCKET_SERVICE app PRIVATE src/ws.c)
 target_sources_ifdef(CONFIG_USB_DEVICE_STACK app PRIVATE src/usb.c)
 
+include(${ZEPHYR_BASE}/samples/net/common/common.cmake)
+
 target_link_libraries(app PRIVATE zephyr_interface zephyr)
 
 zephyr_linker_sources(SECTIONS sections-rom.ld)

samples/net/sockets/http_server/Kconfig

@@ -69,4 +69,5 @@ config NET_SAMPLE_WEBSOCKET_STATS_INTERVAL
 	  This interval controls how often the net stats data shown on the web page
 	  will be updated.
 
+source "samples/net/common/Kconfig"
 source "Kconfig.zephyr"

samples/net/sockets/http_server/overlay-vpn.conf

@@ -0,0 +1,5 @@
+# First VPN interface will use these settings
+CONFIG_NET_SAMPLE_COMMON_VPN_PEER_IP_ADDR="192.0.2.2"
+CONFIG_NET_SAMPLE_COMMON_VPN_MY_ADDR="198.51.100.1/24"
+CONFIG_NET_SAMPLE_COMMON_VPN_ALLOWED_PEER_ADDR="192.0.2.0/24,2001:db8::/64,198.51.100.0/24"
+CONFIG_NET_SAMPLE_COMMON_VPN_MY_PRIVATE_KEY="lmAIbJR8PQOpgJxmfOydBiDbexTMEKsjglZ1sj3kIjs="

samples/net/sockets/http_server/src/main.c

@@ -21,6 +21,7 @@
 #include <zephyr/sys/util_macro.h>
 
 #include "ws.h"
+#include "net_sample_common.h"
 
 #include <zephyr/logging/log.h>
 LOG_MODULE_REGISTER(net_http_server_sample, LOG_LEVEL_DBG);
@@ -359,6 +360,7 @@ static inline int init_usb(void)
 int main(void)
 {
 	init_usb();
+	init_vpn();
 
 	setup_tls();
 	http_server_start();