[net][lwip] Fix set_if() compile error when enable dhcpd fucntion and close finsh.

[net][dhcpd]Fix dhcpd fucntion compile error in lwIP 2.1.0.

components/net/lwip-1.4.1/src/netif/ethernetif.c

@@ -686,8 +686,6 @@ int eth_system_device_init(void)
 }
 INIT_PREV_EXPORT(eth_system_device_init);
 
-#ifdef RT_USING_FINSH
-#include <finsh.h>
 void set_if(char* netif_name, char* ip_addr, char* gw_addr, char* nm_addr)
 {
     struct ip_addr *ip;
@@ -733,6 +731,9 @@ void set_if(char* netif_name, char* ip_addr, char* gw_addr, char* nm_addr)
         netif_set_netmask(netif, ip);
     }
 }
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
 FINSH_FUNCTION_EXPORT(set_if, set network interface address);
 
 #if LWIP_DNS

components/net/lwip-2.0.2/src/netif/ethernetif.c

@@ -715,8 +715,6 @@ int eth_system_device_init_private(void)
     return (int)result;
 }
 
-#ifdef RT_USING_FINSH
-#include <finsh.h>
 void set_if(char* netif_name, char* ip_addr, char* gw_addr, char* nm_addr)
 {
     ip4_addr_t *ip;
@@ -762,6 +760,9 @@ void set_if(char* netif_name, char* ip_addr, char* gw_addr, char* nm_addr)
         netif_set_netmask(netif, ip);
     }
 }
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
 FINSH_FUNCTION_EXPORT(set_if, set network interface address);
 
 #if LWIP_DNS

components/net/lwip-2.1.0/src/netif/ethernetif.c

@@ -720,8 +720,6 @@ int eth_system_device_init_private(void)
     return (int)result;
 }
 
-#ifdef RT_USING_FINSH
-#include <finsh.h>
 void set_if(char* netif_name, char* ip_addr, char* gw_addr, char* nm_addr)
 {
     ip4_addr_t *ip;
@@ -767,6 +765,9 @@ void set_if(char* netif_name, char* ip_addr, char* gw_addr, char* nm_addr)
         netif_set_netmask(netif, ip);
     }
 }
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
 FINSH_FUNCTION_EXPORT(set_if, set network interface address);
 
 #if LWIP_DNS

components/net/lwip_dhcpd/SConscript

@@ -2,7 +2,7 @@ from building import *
 
 cwd = GetCurrentDir()
 
-if GetDepend('RT_USING_LWIP202'):
+if GetDepend('RT_USING_LWIP202') or GetDepend('RT_USING_LWIP210') :
     src = ['dhcp_server_raw.c']
 else:
     src = ['dhcp_server.c']

components/net/lwip_dhcpd/dhcp_server_raw.c

@@ -97,6 +97,10 @@
 #define LWIP_NETIF_LOCK(...)
 #define LWIP_NETIF_UNLOCK(...)
 
+#ifndef DHCP_SERVER_PORT
+#define DHCP_SERVER_PORT 67
+#endif
+
 /**
 * The dhcp client node struct.
 */