examples/gcoap_dtls: add IPv4 support

RIOT-OS · Mar 25, 2022 · 88741d2 · 88741d2
1 parent a475c3c
commit 88741d2
Showing 1 changed file with 22 additions and 3 deletions.
diff --git a/examples/gcoap_dtls/Makefile b/examples/gcoap_dtls/Makefile
@@ -14,17 +14,36 @@ RIOTBASE ?= $(CURDIR)/../..
 USEMODULE += netdev_default
 
 # use GNRC by default
-LWIP ?= 0
+LWIP_IPV4 ?= 0
+LWIP_IPV6 ?= 0
 
-ifeq (0,$(LWIP))
+ifeq (,$(filter 1, $(LWIP_IPV4) $(LWIP_IPV6)))
   USEMODULE += auto_init_gnrc_netif
   # Specify the mandatory networking modules
   USEMODULE += gnrc_ipv6_default
   # Additional networking modules that can be dropped if not needed
   USEMODULE += gnrc_icmpv6_echo
 else
-  USEMODULE += lwip_ipv6
   USEMODULE += lwip_netdev
+
+  ifneq (0,$(LWIP_IPV4))
+    USEMODULE += ipv4_addr
+
+    USEMODULE += lwip_arp
+    USEMODULE += lwip_ipv4
+    USEMODULE += lwip_dhcp_auto
+    CFLAGS += -DETHARP_SUPPORT_STATIC_ENTRIES=1
+
+    # not included when using IPv4-only, but required by CoAP
+    USEMODULE += random
+  endif
+
+  ifneq (0,$(LWIP_IPV6))
+    USEMODULE += ipv6_addr
+
+    USEMODULE += lwip_ipv6
+    USEMODULE += lwip_ipv6_autoconfig
+  endif
 endif
 
 USEMODULE += gcoap