EthernetInterface.cpp

00001 /* LWIP implementation of NetworkInterfaceAPI
00002  * Copyright (c) 2015 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #include "EthernetInterface.h"
00018 #include "lwip_stack.h"
00019 
00020 
00021 /* Interface implementation */
00022 EthernetInterface::EthernetInterface()
00023     : _dhcp(true), _ip_address(), _netmask(), _gateway()
00024 {
00025 }
00026 
00027 nsapi_error_t EthernetInterface::set_network(const char *ip_address, const char *netmask, const char *gateway)
00028 {
00029     _dhcp = false;
00030 
00031     strncpy(_ip_address, ip_address ? ip_address : "", sizeof(_ip_address));
00032     _ip_address[sizeof(_ip_address) - 1] = '\0';
00033     strncpy(_netmask, netmask ? netmask : "", sizeof(_netmask));
00034     _netmask[sizeof(_netmask) - 1] = '\0';
00035     strncpy(_gateway, gateway ? gateway : "", sizeof(_gateway));
00036     _gateway[sizeof(_gateway) - 1] = '\0';
00037 
00038     return NSAPI_ERROR_OK ;
00039 }
00040 
00041 nsapi_error_t EthernetInterface::set_dhcp(bool dhcp)
00042 {
00043     _dhcp = dhcp;
00044     return NSAPI_ERROR_OK ;
00045 }
00046 
00047 nsapi_error_t EthernetInterface::connect()
00048 {
00049     return mbed_lwip_bringup_2(_dhcp, false,
00050             _ip_address[0] ? _ip_address : 0,
00051             _netmask[0] ? _netmask : 0,
00052             _gateway[0] ? _gateway : 0,
00053             DEFAULT_STACK);
00054 }
00055 
00056 nsapi_error_t EthernetInterface::disconnect()
00057 {
00058     return mbed_lwip_bringdown_2(false);
00059 }
00060 
00061 const char *EthernetInterface::get_mac_address()
00062 {
00063     return mbed_lwip_get_mac_address();
00064 }
00065 
00066 const char *EthernetInterface::get_ip_address()
00067 {
00068     if (mbed_lwip_get_ip_address(_ip_address, sizeof _ip_address)) {
00069         return _ip_address;
00070     }
00071 
00072     return NULL;
00073 }
00074 
00075 const char *EthernetInterface::get_netmask()
00076 {
00077     if (mbed_lwip_get_netmask(_netmask, sizeof _netmask)) {
00078         return _netmask;
00079     }
00080 
00081     return 0;
00082 }
00083 
00084 const char *EthernetInterface::get_gateway()
00085 {
00086     if (mbed_lwip_get_gateway(_gateway, sizeof _gateway)) {
00087         return _gateway;
00088     }
00089 
00090     return 0;
00091 }
00092 
00093 NetworkStack *EthernetInterface::get_stack()
00094 {
00095     return nsapi_create_stack(&lwip_stack);
00096 }