Rob Dobson / EthernetInterfacePlusHostname

Modified official MBED EthernetInterface The only changes are to allow hostname to be set and got

Dependencies:   Socket lwip-eth lwip-sys lwip

Dependents:   SpideyWallWeb RdGasUseMonitor

Fork of EthernetInterface by mbed official

EthernetInterface.cpp@50:8e692841213c, 2015-08-31 (annotated)

Committer:
Bobty
Date:
Mon Aug 31 08:58:07 2015 +0000
Revision:
50:8e692841213c
Parent:
37:926eb6517318 
Added setName and getName to allow hostname to be changed

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;
donatien 3:f5776537f27f 38
emilmont 26:dd9794ce1d64 39 static Semaphore tcpip_inited(0);
emilmont 26:dd9794ce1d64 40 static Semaphore netif_linked(0);
emilmont 26:dd9794ce1d64 41 static Semaphore netif_up(0);
donatien 3:f5776537f27f 42
Bobty 50:8e692841213c 43 static char myName[33]; // holds the name, when setName() is called.
Bobty 50:8e692841213c 44
emilmont 14:cec293071eed 45 static void tcpip_init_done(void *arg) {
emilmont 14:cec293071eed 46 tcpip_inited.release();
emilmont 14:cec293071eed 47 }
emilmont 26:dd9794ce1d64 48
emilmont 26:dd9794ce1d64 49 static void netif_link_callback(struct netif *netif) {
emilmont 26:dd9794ce1d64 50 if (netif_is_link_up(netif)) {
emilmont 26:dd9794ce1d64 51 netif_linked.release();
emilmont 26:dd9794ce1d64 52 }
emilmont 26:dd9794ce1d64 53 }
emilmont 26:dd9794ce1d64 54
emilmont 14:cec293071eed 55 static void netif_status_callback(struct netif *netif) {
emilmont 26:dd9794ce1d64 56 if (netif_is_up(netif)) {
emilmont 26:dd9794ce1d64 57 strcpy(ip_addr, inet_ntoa(netif->ip_addr));
mbed_official 35:cba86db5ab96 58 strcpy(gateway, inet_ntoa(netif->gw));
mbed_official 35:cba86db5ab96 59 strcpy(networkmask, inet_ntoa(netif->netmask));
emilmont 26:dd9794ce1d64 60 netif_up.release();
emilmont 26:dd9794ce1d64 61 }
emilmont 14:cec293071eed 62 }
emilmont 26:dd9794ce1d64 63
emilmont 14:cec293071eed 64 static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) {
emilmont 14:cec293071eed 65 tcpip_init(tcpip_init_done, NULL);
emilmont 14:cec293071eed 66 tcpip_inited.wait();
emilmont 14:cec293071eed 67
mbed_official 37:926eb6517318 68 memset((void*) &netif, 0, sizeof(netif));
mbed_official 37:926eb6517318 69 netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input);
mbed_official 37:926eb6517318 70 netif_set_default(&netif);
emilmont 26:dd9794ce1d64 71
mbed_official 37:926eb6517318 72 netif_set_link_callback (&netif, netif_link_callback);
mbed_official 37:926eb6517318 73 netif_set_status_callback(&netif, netif_status_callback);
donatien 3:f5776537f27f 74 }
donatien 3:f5776537f27f 75
emilmont 27:2124eae946f3 76 static void set_mac_address(void) {
bogdanm 33:c21b055c45b8 77 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
bogdanm 33:c21b055c45b8 78 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 79 MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5);
bogdanm 33:c21b055c45b8 80 #else
emilmont 27:2124eae946f3 81 char mac[6];
emilmont 27:2124eae946f3 82 mbed_mac_address(mac);
emilmont 27:2124eae946f3 83 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 84 #endif
emilmont 27:2124eae946f3 85 }
emilmont 27:2124eae946f3 86
emilmont 14:cec293071eed 87 int EthernetInterface::init() {
emilmont 14:cec293071eed 88 use_dhcp = true;
emilmont 27:2124eae946f3 89 set_mac_address();
emilmont 14:cec293071eed 90 init_netif(NULL, NULL, NULL);
emilmont 15:fd9597f1b81b 91 return 0;
donatien 3:f5776537f27f 92 }
donatien 3:f5776537f27f 93
emilmont 14:cec293071eed 94 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) {
emilmont 14:cec293071eed 95 use_dhcp = false;
emilmont 27:2124eae946f3 96
emilmont 27:2124eae946f3 97 set_mac_address();
emilmont 26:dd9794ce1d64 98 strcpy(ip_addr, ip);
emilmont 26:dd9794ce1d64 99
emilmont 14:cec293071eed 100 ip_addr_t ip_n, mask_n, gateway_n;
emilmont 14:cec293071eed 101 inet_aton(ip, &ip_n);
emilmont 14:cec293071eed 102 inet_aton(mask, &mask_n);
emilmont 14:cec293071eed 103 inet_aton(gateway, &gateway_n);
emilmont 14:cec293071eed 104 init_netif(&ip_n, &mask_n, &gateway_n);
emilmont 26:dd9794ce1d64 105
emilmont 15:fd9597f1b81b 106 return 0;
donatien 3:f5776537f27f 107 }
donatien 3:f5776537f27f 108
emilmont 21:8cd2de462559 109 int EthernetInterface::connect(unsigned int timeout_ms) {
mbed_official 37:926eb6517318 110 eth_arch_enable_interrupts();
mbed_official 37:926eb6517318 111
emilmont 26:dd9794ce1d64 112 int inited;
emilmont 14:cec293071eed 113 if (use_dhcp) {
mbed_official 37:926eb6517318 114 dhcp_start(&netif);
emilmont 26:dd9794ce1d64 115
emilmont 27:2124eae946f3 116 // Wait for an IP Address
emilmont 26:dd9794ce1d64 117 // -1: error, 0: timeout
emilmont 26:dd9794ce1d64 118 inited = netif_up.wait(timeout_ms);
emilmont 14:cec293071eed 119 } else {
mbed_official 37:926eb6517318 120 netif_set_up(&netif);
emilmont 26:dd9794ce1d64 121
emilmont 26:dd9794ce1d64 122 // Wait for the link up
emilmont 26:dd9794ce1d64 123 inited = netif_linked.wait(timeout_ms);
emilmont 14:cec293071eed 124 }
emilmont 14:cec293071eed 125
emilmont 21:8cd2de462559 126 return (inited > 0) ? (0) : (-1);
donatien 3:f5776537f27f 127 }
donatien 3:f5776537f27f 128
emilmont 14:cec293071eed 129 int EthernetInterface::disconnect() {
emilmont 14:cec293071eed 130 if (use_dhcp) {
mbed_official 37:926eb6517318 131 dhcp_release(&netif);
mbed_official 37:926eb6517318 132 dhcp_stop(&netif);
emilmont 14:cec293071eed 133 } else {
mbed_official 37:926eb6517318 134 netif_set_down(&netif);
emilmont 14:cec293071eed 135 }
emilmont 14:cec293071eed 136
mbed_official 37:926eb6517318 137 eth_arch_disable_interrupts();
emilmont 14:cec293071eed 138
emilmont 15:fd9597f1b81b 139 return 0;
donatien 3:f5776537f27f 140 }
donatien 3:f5776537f27f 141
emilmont 27:2124eae946f3 142 char* EthernetInterface::getMACAddress() {
emilmont 27:2124eae946f3 143 return mac_addr;
emilmont 27:2124eae946f3 144 }
emilmont 27:2124eae946f3 145
emilmont 14:cec293071eed 146 char* EthernetInterface::getIPAddress() {
emilmont 26:dd9794ce1d64 147 return ip_addr;
emilmont 14:cec293071eed 148 }
mbed_official 35:cba86db5ab96 149
mbed_official 35:cba86db5ab96 150 char* EthernetInterface::getGateway() {
mbed_official 35:cba86db5ab96 151 return gateway;
mbed_official 35:cba86db5ab96 152 }
mbed_official 35:cba86db5ab96 153
mbed_official 35:cba86db5ab96 154 char* EthernetInterface::getNetworkMask() {
mbed_official 35:cba86db5ab96 155 return networkmask;
mbed_official 35:cba86db5ab96 156 }
mbed_official 35:cba86db5ab96 157
Bobty 50:8e692841213c 158 int EthernetInterface::setName(const char * myname) {
Bobty 50:8e692841213c 159 strncpy(myName, myname, 32);
Bobty 50:8e692841213c 160 myName[32] = '\0'; // be sure it is NULL terminated.
Bobty 50:8e692841213c 161 // make the name 'safe'
Bobty 50:8e692841213c 162 for (int i=0; i<32 && myName[i]; i++) {
Bobty 50:8e692841213c 163 if (!(myName[i] >= '0' && myName[i] <= '9')
Bobty 50:8e692841213c 164 && !(myName[i] >= 'A' && myName[i] <= 'Z')
Bobty 50:8e692841213c 165 && !(myName[i] >= 'a' && myName[i] <= 'z'))
Bobty 50:8e692841213c 166 myName[i] = '-';
Bobty 50:8e692841213c 167 }
Bobty 50:8e692841213c 168 netif_set_hostname(&netif, myName);
Bobty 50:8e692841213c 169 return 0;
Bobty 50:8e692841213c 170 }
mbed_official 35:cba86db5ab96 171
Bobty 50:8e692841213c 172 char* EthernetInterface::getName() {
Bobty 50:8e692841213c 173 return netif_get_hostname(&netif);
Bobty 50:8e692841213c 174
Bobty 50:8e692841213c 175 }