Miguel Urco / EthernetInterface

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 mbed official

EthernetInterface.cpp@47:3b0a475eb1ad, 2015-02-05 (annotated)

Committer:
miguelcordero191
Date:
Thu Feb 05 19:02:23 2015 +0000
Revision:
47:3b0a475eb1ad
Parent:
46:4cb91998b200
Child:
48:303f4d8389a1
setName and changeIp methods were added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
donatien 4:9a52c802be61 1 /* EthernetInterface.cpp */
donatien 3:f5776537f27f 2 /* Copyright (C) 2012 mbed.org, MIT License
donatien 3:f5776537f27f 3 *
donatien 3:f5776537f27f 4 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
donatien 3:f5776537f27f 5 * and associated documentation files (the "Software"), to deal in the Software without restriction,
donatien 3:f5776537f27f 6 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
donatien 3:f5776537f27f 7 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
donatien 3:f5776537f27f 8 * furnished to do so, subject to the following conditions:
donatien 3:f5776537f27f 9 *
donatien 3:f5776537f27f 10 * The above copyright notice and this permission notice shall be included in all copies or
donatien 3:f5776537f27f 11 * substantial portions of the Software.
donatien 3:f5776537f27f 12 *
donatien 3:f5776537f27f 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
donatien 3:f5776537f27f 14 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
donatien 3:f5776537f27f 15 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
donatien 3:f5776537f27f 16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
donatien 3:f5776537f27f 17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
donatien 3:f5776537f27f 18 */
donatien 3:f5776537f27f 19 #include "EthernetInterface.h"
donatien 3:f5776537f27f 20
donatien 3:f5776537f27f 21 #include "lwip/inet.h"
donatien 3:f5776537f27f 22 #include "lwip/netif.h"
donatien 3:f5776537f27f 23 #include "netif/etharp.h"
donatien 3:f5776537f27f 24 #include "lwip/dhcp.h"
mbed_official 37:926eb6517318 25 #include "eth_arch.h"
donatien 3:f5776537f27f 26 #include "lwip/tcpip.h"
donatien 3:f5776537f27f 27
donatien 3:f5776537f27f 28 #include "mbed.h"
donatien 3:f5776537f27f 29
emilmont 14:cec293071eed 30 /* TCP/IP and Network Interface Initialisation */
mbed_official 37:926eb6517318 31 static struct netif netif;
donatien 3:f5776537f27f 32
emilmont 27:2124eae946f3 33 static char mac_addr[19];
emilmont 27:2124eae946f3 34 static char ip_addr[17] = "\0";
mbed_official 35:cba86db5ab96 35 static char gateway[17] = "\0";
mbed_official 35:cba86db5ab96 36 static char networkmask[17] = "\0";
emilmont 26:dd9794ce1d64 37 static bool use_dhcp = false;
miguelcordero191 47:3b0a475eb1ad 38 static char myName[33]; // holds the name, when setName() is called.
donatien 3:f5776537f27f 39
emilmont 26:dd9794ce1d64 40 static Semaphore tcpip_inited(0);
emilmont 26:dd9794ce1d64 41 static Semaphore netif_linked(0);
emilmont 26:dd9794ce1d64 42 static Semaphore netif_up(0);
donatien 3:f5776537f27f 43
emilmont 14:cec293071eed 44 static void tcpip_init_done(void *arg) {
emilmont 14:cec293071eed 45 tcpip_inited.release();
emilmont 14:cec293071eed 46 }
emilmont 26:dd9794ce1d64 47
emilmont 26:dd9794ce1d64 48 static void netif_link_callback(struct netif *netif) {
emilmont 26:dd9794ce1d64 49 if (netif_is_link_up(netif)) {
emilmont 26:dd9794ce1d64 50 netif_linked.release();
emilmont 26:dd9794ce1d64 51 }
emilmont 26:dd9794ce1d64 52 }
emilmont 26:dd9794ce1d64 53
emilmont 14:cec293071eed 54 static void netif_status_callback(struct netif *netif) {
emilmont 26:dd9794ce1d64 55 if (netif_is_up(netif)) {
emilmont 26:dd9794ce1d64 56 strcpy(ip_addr, inet_ntoa(netif->ip_addr));
mbed_official 35:cba86db5ab96 57 strcpy(gateway, inet_ntoa(netif->gw));
mbed_official 35:cba86db5ab96 58 strcpy(networkmask, inet_ntoa(netif->netmask));
emilmont 26:dd9794ce1d64 59 netif_up.release();
emilmont 26:dd9794ce1d64 60 }
emilmont 14:cec293071eed 61 }
emilmont 26:dd9794ce1d64 62
emilmont 14:cec293071eed 63 static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) {
emilmont 14:cec293071eed 64 tcpip_init(tcpip_init_done, NULL);
emilmont 14:cec293071eed 65 tcpip_inited.wait();
emilmont 14:cec293071eed 66
mbed_official 37:926eb6517318 67 memset((void*) &netif, 0, sizeof(netif));
mbed_official 37:926eb6517318 68 netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input);
mbed_official 37:926eb6517318 69 netif_set_default(&netif);
emilmont 26:dd9794ce1d64 70
mbed_official 37:926eb6517318 71 netif_set_link_callback (&netif, netif_link_callback);
mbed_official 37:926eb6517318 72 netif_set_status_callback(&netif, netif_status_callback);
donatien 3:f5776537f27f 73 }
donatien 3:f5776537f27f 74
emilmont 27:2124eae946f3 75 static void set_mac_address(void) {
bogdanm 33:c21b055c45b8 76 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
bogdanm 33:c21b055c45b8 77 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", MBED_MAC_ADDR_0, MBED_MAC_ADDR_1, MBED_MAC_ADDR_2,
bogdanm 33:c21b055c45b8 78 MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5);
bogdanm 33:c21b055c45b8 79 #else
emilmont 27:2124eae946f3 80 char mac[6];
emilmont 27:2124eae946f3 81 mbed_mac_address(mac);
emilmont 27:2124eae946f3 82 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
bogdanm 33:c21b055c45b8 83 #endif
emilmont 27:2124eae946f3 84 }
emilmont 27:2124eae946f3 85
miguelcordero191 46:4cb91998b200 86 static void set_new_addr(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) {
miguelcordero191 46:4cb91998b200 87
miguelcordero191 46:4cb91998b200 88 netif_set_addr(&netif, ipaddr, netmask, gw);
miguelcordero191 46:4cb91998b200 89
miguelcordero191 46:4cb91998b200 90 }
miguelcordero191 46:4cb91998b200 91
emilmont 14:cec293071eed 92 int EthernetInterface::init() {
emilmont 14:cec293071eed 93 use_dhcp = true;
emilmont 27:2124eae946f3 94 set_mac_address();
emilmont 14:cec293071eed 95 init_netif(NULL, NULL, NULL);
emilmont 15:fd9597f1b81b 96 return 0;
donatien 3:f5776537f27f 97 }
donatien 3:f5776537f27f 98
emilmont 14:cec293071eed 99 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) {
emilmont 14:cec293071eed 100 use_dhcp = false;
emilmont 27:2124eae946f3 101
emilmont 27:2124eae946f3 102 set_mac_address();
emilmont 26:dd9794ce1d64 103 strcpy(ip_addr, ip);
emilmont 26:dd9794ce1d64 104
emilmont 14:cec293071eed 105 ip_addr_t ip_n, mask_n, gateway_n;
emilmont 14:cec293071eed 106 inet_aton(ip, &ip_n);
emilmont 14:cec293071eed 107 inet_aton(mask, &mask_n);
emilmont 14:cec293071eed 108 inet_aton(gateway, &gateway_n);
emilmont 14:cec293071eed 109 init_netif(&ip_n, &mask_n, &gateway_n);
emilmont 26:dd9794ce1d64 110
emilmont 15:fd9597f1b81b 111 return 0;
donatien 3:f5776537f27f 112 }
donatien 3:f5776537f27f 113
miguelcordero191 46:4cb91998b200 114 int EthernetInterface::setNewAddr(const char* ip, const char* mask, const char* gateway) {
miguelcordero191 46:4cb91998b200 115 use_dhcp = false;
miguelcordero191 46:4cb91998b200 116
miguelcordero191 46:4cb91998b200 117 strcpy(ip_addr, ip);
miguelcordero191 46:4cb91998b200 118
miguelcordero191 46:4cb91998b200 119 ip_addr_t ip_n, mask_n, gateway_n;
miguelcordero191 46:4cb91998b200 120 inet_aton(ip, &ip_n);
miguelcordero191 46:4cb91998b200 121 inet_aton(mask, &mask_n);
miguelcordero191 46:4cb91998b200 122 inet_aton(gateway, &gateway_n);
miguelcordero191 46:4cb91998b200 123 set_new_addr(&ip_n, &mask_n, &gateway_n);
miguelcordero191 46:4cb91998b200 124
miguelcordero191 46:4cb91998b200 125 return 0;
miguelcordero191 46:4cb91998b200 126 }
miguelcordero191 46:4cb91998b200 127
miguelcordero191 47:3b0a475eb1ad 128 int EthernetInterface::setName(const char * myname) {
miguelcordero191 47:3b0a475eb1ad 129 int i;
miguelcordero191 47:3b0a475eb1ad 130
miguelcordero191 47:3b0a475eb1ad 131 strncpy(myName, myname, 32);
miguelcordero191 47:3b0a475eb1ad 132 myName[32] = '\0'; // be sure it is NULL terminated.
miguelcordero191 47:3b0a475eb1ad 133 // make the name 'safe'
miguelcordero191 47:3b0a475eb1ad 134 /*
miguelcordero191 47:3b0a475eb1ad 135 for (i=0; i<32 && myName[i]; i++) {
miguelcordero191 47:3b0a475eb1ad 136 if (!inRange(myName[i], '0', '9')
miguelcordero191 47:3b0a475eb1ad 137 && !inRange(myName[i], 'A', 'Z')
miguelcordero191 47:3b0a475eb1ad 138 && !inRange(myName[i], 'a', 'z'))
miguelcordero191 47:3b0a475eb1ad 139 myName[i] = '-';
miguelcordero191 47:3b0a475eb1ad 140 }
miguelcordero191 47:3b0a475eb1ad 141 */
miguelcordero191 47:3b0a475eb1ad 142 netif_set_hostname(&netif, myName);
miguelcordero191 47:3b0a475eb1ad 143 return 0;
miguelcordero191 47:3b0a475eb1ad 144 }
miguelcordero191 47:3b0a475eb1ad 145
emilmont 21:8cd2de462559 146 int EthernetInterface::connect(unsigned int timeout_ms) {
mbed_official 37:926eb6517318 147 eth_arch_enable_interrupts();
mbed_official 37:926eb6517318 148
emilmont 26:dd9794ce1d64 149 int inited;
emilmont 14:cec293071eed 150 if (use_dhcp) {
mbed_official 37:926eb6517318 151 dhcp_start(&netif);
emilmont 26:dd9794ce1d64 152
emilmont 27:2124eae946f3 153 // Wait for an IP Address
emilmont 26:dd9794ce1d64 154 // -1: error, 0: timeout
emilmont 26:dd9794ce1d64 155 inited = netif_up.wait(timeout_ms);
emilmont 14:cec293071eed 156 } else {
mbed_official 37:926eb6517318 157 netif_set_up(&netif);
emilmont 26:dd9794ce1d64 158
emilmont 26:dd9794ce1d64 159 // Wait for the link up
emilmont 26:dd9794ce1d64 160 inited = netif_linked.wait(timeout_ms);
emilmont 14:cec293071eed 161 }
emilmont 14:cec293071eed 162
emilmont 21:8cd2de462559 163 return (inited > 0) ? (0) : (-1);
donatien 3:f5776537f27f 164 }
donatien 3:f5776537f27f 165
emilmont 14:cec293071eed 166 int EthernetInterface::disconnect() {
emilmont 14:cec293071eed 167 if (use_dhcp) {
mbed_official 37:926eb6517318 168 dhcp_release(&netif);
mbed_official 37:926eb6517318 169 dhcp_stop(&netif);
emilmont 14:cec293071eed 170 } else {
mbed_official 37:926eb6517318 171 netif_set_down(&netif);
emilmont 14:cec293071eed 172 }
emilmont 14:cec293071eed 173
mbed_official 37:926eb6517318 174 eth_arch_disable_interrupts();
emilmont 14:cec293071eed 175
emilmont 15:fd9597f1b81b 176 return 0;
donatien 3:f5776537f27f 177 }
donatien 3:f5776537f27f 178
emilmont 27:2124eae946f3 179 char* EthernetInterface::getMACAddress() {
emilmont 27:2124eae946f3 180 return mac_addr;
emilmont 27:2124eae946f3 181 }
emilmont 27:2124eae946f3 182
emilmont 14:cec293071eed 183 char* EthernetInterface::getIPAddress() {
emilmont 26:dd9794ce1d64 184 return ip_addr;
emilmont 14:cec293071eed 185 }
mbed_official 35:cba86db5ab96 186
mbed_official 35:cba86db5ab96 187 char* EthernetInterface::getGateway() {
mbed_official 35:cba86db5ab96 188 return gateway;
mbed_official 35:cba86db5ab96 189 }
mbed_official 35:cba86db5ab96 190
mbed_official 35:cba86db5ab96 191 char* EthernetInterface::getNetworkMask() {
mbed_official 35:cba86db5ab96 192 return networkmask;
mbed_official 35:cba86db5ab96 193 }
mbed_official 35:cba86db5ab96 194
mbed_official 35:cba86db5ab96 195