mbed IP library over Ethernet with setName and setNewAddress
Dependencies: Socket lwip-eth lwip-sys lwip
Dependents: JRO_CR2 JRO_DDSv2 JRO_DDSv2_rev2019
Fork of EthernetInterface by
EthernetInterface.cpp
00001 /* EthernetInterface.cpp */ 00002 /* Copyright (C) 2012 mbed.org, MIT License 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 00005 * and associated documentation files (the "Software"), to deal in the Software without restriction, 00006 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 00007 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 00008 * furnished to do so, subject to the following conditions: 00009 * 00010 * The above copyright notice and this permission notice shall be included in all copies or 00011 * substantial portions of the Software. 00012 * 00013 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 00014 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00015 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 00016 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00017 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00018 */ 00019 #include "EthernetInterface.h" 00020 00021 #include "lwip/inet.h" 00022 #include "lwip/netif.h" 00023 #include "netif/etharp.h" 00024 #include "lwip/dhcp.h" 00025 #include "eth_arch.h" 00026 #include "lwip/tcpip.h" 00027 00028 #include "mbed.h" 00029 00030 /* TCP/IP and Network Interface Initialisation */ 00031 static struct netif netif; 00032 00033 static char mac_addr[19]; 00034 static char ip_addr[17] = "\0"; 00035 static char gateway[17] = "\0"; 00036 static char networkmask[17] = "\0"; 00037 static bool use_dhcp = false; 00038 static char myName[33]; // holds the name, when setName() is called. 00039 00040 static Semaphore tcpip_inited(0); 00041 static Semaphore netif_linked(0); 00042 static Semaphore netif_up(0); 00043 00044 static void tcpip_init_done(void *arg) { 00045 tcpip_inited.release(); 00046 } 00047 00048 static void netif_link_callback(struct netif *netif) { 00049 if (netif_is_link_up(netif)) { 00050 netif_linked.release(); 00051 } 00052 } 00053 00054 static void netif_status_callback(struct netif *netif) { 00055 if (netif_is_up(netif)) { 00056 strcpy(ip_addr, inet_ntoa(netif->ip_addr)); 00057 strcpy(gateway, inet_ntoa(netif->gw)); 00058 strcpy(networkmask, inet_ntoa(netif->netmask)); 00059 netif_up.release(); 00060 } 00061 } 00062 00063 static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) { 00064 tcpip_init(tcpip_init_done, NULL); 00065 tcpip_inited.wait(); 00066 00067 memset((void*) &netif, 0, sizeof(netif)); 00068 netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input); 00069 netif_set_default(&netif); 00070 00071 netif_set_link_callback (&netif, netif_link_callback); 00072 netif_set_status_callback(&netif, netif_status_callback); 00073 } 00074 00075 static void set_mac_address(void) { 00076 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE) 00077 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", MBED_MAC_ADDR_0, MBED_MAC_ADDR_1, MBED_MAC_ADDR_2, 00078 MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5); 00079 #else 00080 char mac[6]; 00081 mbed_mac_address(mac); 00082 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); 00083 #endif 00084 } 00085 00086 static void set_new_addr(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) { 00087 00088 netif_set_addr(&netif, ipaddr, netmask, gw); 00089 00090 } 00091 00092 int EthernetInterface::init() { 00093 use_dhcp = true; 00094 set_mac_address(); 00095 init_netif(NULL, NULL, NULL); 00096 return 0; 00097 } 00098 00099 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) { 00100 use_dhcp = false; 00101 00102 set_mac_address(); 00103 strcpy(ip_addr, ip); 00104 00105 ip_addr_t ip_n, mask_n, gateway_n; 00106 inet_aton(ip, &ip_n); 00107 inet_aton(mask, &mask_n); 00108 inet_aton(gateway, &gateway_n); 00109 init_netif(&ip_n, &mask_n, &gateway_n); 00110 00111 return 0; 00112 } 00113 00114 int EthernetInterface::setNewAddr(const char* ip, const char* mask, const char* gateway) { 00115 use_dhcp = false; 00116 00117 strcpy(ip_addr, ip); 00118 00119 ip_addr_t ip_n, mask_n, gateway_n; 00120 inet_aton(ip, &ip_n); 00121 inet_aton(mask, &mask_n); 00122 inet_aton(gateway, &gateway_n); 00123 set_new_addr(&ip_n, &mask_n, &gateway_n); 00124 00125 return 0; 00126 } 00127 00128 int EthernetInterface::setName(const char * myname) { 00129 //int i; 00130 00131 strncpy(myName, myname, 32); 00132 myName[32] = '\0'; // be sure it is NULL terminated. 00133 // make the name 'safe' 00134 /* 00135 for (i=0; i<32 && myName[i]; i++) { 00136 if (!inRange(myName[i], '0', '9') 00137 && !inRange(myName[i], 'A', 'Z') 00138 && !inRange(myName[i], 'a', 'z')) 00139 myName[i] = '-'; 00140 } 00141 */ 00142 netif_set_hostname(&netif, myName); 00143 return 0; 00144 } 00145 00146 int EthernetInterface::connect(unsigned int timeout_ms) { 00147 eth_arch_enable_interrupts(); 00148 00149 int inited; 00150 if (use_dhcp) { 00151 dhcp_start(&netif); 00152 00153 // Wait for an IP Address 00154 // -1: error, 0: timeout 00155 inited = netif_up.wait(timeout_ms); 00156 } else { 00157 netif_set_up(&netif); 00158 00159 // Wait for the link up 00160 inited = netif_linked.wait(timeout_ms); 00161 } 00162 00163 return (inited > 0) ? (0) : (-1); 00164 } 00165 00166 int EthernetInterface::disconnect() { 00167 if (use_dhcp) { 00168 dhcp_release(&netif); 00169 dhcp_stop(&netif); 00170 } else { 00171 netif_set_down(&netif); 00172 } 00173 00174 eth_arch_disable_interrupts(); 00175 00176 return 0; 00177 } 00178 00179 char* EthernetInterface::getMACAddress() { 00180 return mac_addr; 00181 } 00182 00183 char* EthernetInterface::getIPAddress() { 00184 return ip_addr; 00185 } 00186 00187 char* EthernetInterface::getGateway() { 00188 return gateway; 00189 } 00190 00191 char* EthernetInterface::getNetworkMask() { 00192 return networkmask; 00193 } 00194 00195
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