net/lwip: add comments on DHCP/DHCPS

This commit is including added comments about DHCP client and server and
disabled LWIP_DHCP definition for explicit directions on lwIP
 - user can configure lwIP feature set via lwipopts.h
 - DHCP client and server are supported by netutils in this platform

Change-Id: I9051246f38a70a741236969454adb315d8aed77a
Signed-off-by: Jin-Seong Kim <jseong82.kim@samsung.com>

diff --git a/os/include/net/lwip/lwipopts.h b/os/include/net/lwip/lwipopts.h
old mode 100644 (file)
new mode 100755 (executable)
index f7ff27e..9692493
--- a/os/include/net/lwip/lwipopts.h
+++ b/os/include/net/lwip/lwipopts.h
@@ -265,9 +265,18 @@
 
 #define UDP_TTL                         255
 #define LWIP_UDP_TODO                   1
-#define LWIP_DHCPS                      0
 /* ---------- UDP options ---------- */
 
+/* ---------- DHCP options ---------- */
+
+/*
+ * Note
+ * In this platform, DHCP client and server are supported through netutils
+ * Instead of using lwIP DHCP, please use netutils dhcpc and dhcpd
+ */
+#define LWIP_DHCPS                      0
+#define LWIP_DHCP                       0
+/* ---------- DHCP options ---------- */
 
 /* ---------- SNMP options ---------- */
 #ifdef CONFIG_NET_LWIP_SNMP