Zoltan Hudak / UIPEthernet Featured

Mbed library for ENC28J60 Ethernet modules. Full support for TCP/IP and UDP Server, Client and HTTP server (webserver). DHCP and DNS is included.

Dependents:   mBuino_ENC28_MQTT Nucleo_Web_ENC28J60 Nucleo_Web_ENC28J60_ADC Serial_over_Ethernet ... more

Library for ENC28J60 Ethernet modules.

/media/uploads/hudakz/enc28j60_module01.jpg

Ported to mbed from Norbert Truchsess's UIPEthernet library for Arduino. Thank you Norbert!

  • Full support for persistent (streaming) TCP/IP and UDP connections Client and Server each, ARP, ICMP, DHCP and DNS.
  • Works with both Mbed OS 2 and Mbed OS 5.

Usage:

  • Import the library into your project.
  • Add #include "UipEthernet.h" to main.cpp
  • Create one instance of the UipEthernet class initialized with the MAC address you'd like to use and SPI pins of the connected Mbed board.

Example programs:

Import programWebSwitch_ENC28J60

HTTP Server serving a simple webpage which enables to remotely turn a digital output on/off. Compile, download, run and type 'IP_address/secret/' (don't forget the last '/') into your web browser and hit ENTER.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programHTTPServer_Echo_ENC28J60

A simple HTTP server echoing received requests. Ethernet connection is over an ENC28J60 board. Usage: Type the server's IP address into you web browser and hit <ENTER>.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programTcpServer_ENC28J60

Simple TCP/IP Server using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programTcpClient_ENC28J60

Simple TCP/IP Client using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programUdpServer_ENC28J60

Simple UDP Server using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programUdpClient_ENC28J60

Simple UDP Client using the UIPEthernet library for ENC28J60 Ethernet boards.

Last commit 23 Jul 2020 by Zoltan Hudak

Import programMQTT_Hello_ENC28J60

MQTT Client example program. Ethernet connection is via an ENC28J60 module.

Last commit 23 Jul 2020 by Zoltan Hudak

UdpSocket.cpp@9:a156d3de5647, 2019-08-27 (annotated)

Committer:
hudakz
Date:
Tue Aug 27 15:01:10 2019 +0000
Revision:
9:a156d3de5647
Child:
11:647d53d146f1
Mbed OS 5 support added and API modified.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hudakz 9:a156d3de5647 1 /*
hudakz 9:a156d3de5647 2 UIPUdp.cpp - Arduino implementation of a UIP wrapper class.
hudakz 9:a156d3de5647 3 Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
hudakz 9:a156d3de5647 4 All rights reserved.
hudakz 9:a156d3de5647 5
hudakz 9:a156d3de5647 6 This program is free software: you can redistribute it and/or modify
hudakz 9:a156d3de5647 7 it under the terms of the GNU General Public License as published by
hudakz 9:a156d3de5647 8 the Free Software Foundation, either version 3 of the License, or
hudakz 9:a156d3de5647 9 (at your option) any later version.
hudakz 9:a156d3de5647 10
hudakz 9:a156d3de5647 11 This program is distributed in the hope that it will be useful,
hudakz 9:a156d3de5647 12 but WITHOUT ANY WARRANTY; without even the implied warranty of
hudakz 9:a156d3de5647 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
hudakz 9:a156d3de5647 14 GNU General Public License for more details.
hudakz 9:a156d3de5647 15
hudakz 9:a156d3de5647 16 You should have received a copy of the GNU General Public License
hudakz 9:a156d3de5647 17 along with this program. If not, see <http://www.gnu.org/licenses/>.
hudakz 9:a156d3de5647 18 */
hudakz 9:a156d3de5647 19 #include "UipEthernet.h"
hudakz 9:a156d3de5647 20 #include "UdpSocket.h"
hudakz 9:a156d3de5647 21 #include "DnsClient.h"
hudakz 9:a156d3de5647 22
hudakz 9:a156d3de5647 23 extern "C"
hudakz 9:a156d3de5647 24 {
hudakz 9:a156d3de5647 25 #include "utility/uip-conf.h"
hudakz 9:a156d3de5647 26 #include "utility/uip.h"
hudakz 9:a156d3de5647 27 #include "utility/uip_arp.h"
hudakz 9:a156d3de5647 28 }
hudakz 9:a156d3de5647 29 #if UIP_UDP
hudakz 9:a156d3de5647 30 #define UIP_ARPHDRSIZE 42
hudakz 9:a156d3de5647 31 #define UDPBUF ((struct uip_udpip_hdr*) &uip_buf[UIP_LLH_LEN])
hudakz 9:a156d3de5647 32
hudakz 9:a156d3de5647 33 // Constructor
hudakz 9:a156d3de5647 34 UdpSocket::UdpSocket() :
hudakz 9:a156d3de5647 35 _uip_udp_conn(NULL)
hudakz 9:a156d3de5647 36 {
hudakz 9:a156d3de5647 37 memset(&appdata, 0, sizeof(appdata));
hudakz 9:a156d3de5647 38 }
hudakz 9:a156d3de5647 39
hudakz 9:a156d3de5647 40 // initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use
hudakz 9:a156d3de5647 41 uint8_t UdpSocket::begin(uint16_t port)
hudakz 9:a156d3de5647 42 {
hudakz 9:a156d3de5647 43 if (!_uip_udp_conn) {
hudakz 9:a156d3de5647 44 _uip_udp_conn = uip_udp_new(NULL, 0);
hudakz 9:a156d3de5647 45 }
hudakz 9:a156d3de5647 46
hudakz 9:a156d3de5647 47 if (_uip_udp_conn) {
hudakz 9:a156d3de5647 48 uip_udp_bind(_uip_udp_conn, htons(port));
hudakz 9:a156d3de5647 49 _uip_udp_conn->appstate = &appdata;
hudakz 9:a156d3de5647 50 return 1;
hudakz 9:a156d3de5647 51 }
hudakz 9:a156d3de5647 52
hudakz 9:a156d3de5647 53 return 0;
hudakz 9:a156d3de5647 54 }
hudakz 9:a156d3de5647 55
hudakz 9:a156d3de5647 56 // Finish with the UDP socket
hudakz 9:a156d3de5647 57 void UdpSocket::stop()
hudakz 9:a156d3de5647 58 {
hudakz 9:a156d3de5647 59 if (_uip_udp_conn) {
hudakz 9:a156d3de5647 60 uip_udp_remove(_uip_udp_conn);
hudakz 9:a156d3de5647 61 _uip_udp_conn->appstate = NULL;
hudakz 9:a156d3de5647 62 _uip_udp_conn = NULL;
hudakz 9:a156d3de5647 63 UipEthernet::ethernet->phy.freeBlock(appdata.packet_in);
hudakz 9:a156d3de5647 64 UipEthernet::ethernet->phy.freeBlock(appdata.packet_next);
hudakz 9:a156d3de5647 65 UipEthernet::ethernet->phy.freeBlock(appdata.packet_out);
hudakz 9:a156d3de5647 66 memset(&appdata, 0, sizeof(appdata));
hudakz 9:a156d3de5647 67 }
hudakz 9:a156d3de5647 68 }
hudakz 9:a156d3de5647 69
hudakz 9:a156d3de5647 70 // Sending UDP packets
hudakz 9:a156d3de5647 71 // Start building up a packet to send to the remote host specific in ip and port
hudakz 9:a156d3de5647 72
hudakz 9:a156d3de5647 73 // Returns 1 if successful, 0 if there was a problem with the supplied IP address or port
hudakz 9:a156d3de5647 74 int UdpSocket::beginPacket(IpAddress ip, uint16_t port)
hudakz 9:a156d3de5647 75 {
hudakz 9:a156d3de5647 76 UipEthernet::ethernet->tick();
hudakz 9:a156d3de5647 77 if (ip && port) {
hudakz 9:a156d3de5647 78 uip_ipaddr_t ripaddr;
hudakz 9:a156d3de5647 79 uip_ip_addr(&ripaddr, ip);
hudakz 9:a156d3de5647 80 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 81 printf("udp beginPacket, ");
hudakz 9:a156d3de5647 82 #endif
hudakz 9:a156d3de5647 83 if (_uip_udp_conn) {
hudakz 9:a156d3de5647 84 _uip_udp_conn->rport = htons(port);
hudakz 9:a156d3de5647 85 uip_ipaddr_copy(_uip_udp_conn->ripaddr, &ripaddr);
hudakz 9:a156d3de5647 86 }
hudakz 9:a156d3de5647 87 else {
hudakz 9:a156d3de5647 88 _uip_udp_conn = uip_udp_new(&ripaddr, htons(port));
hudakz 9:a156d3de5647 89 if (_uip_udp_conn)
hudakz 9:a156d3de5647 90 {
hudakz 9:a156d3de5647 91 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 92 printf("new connection, ");
hudakz 9:a156d3de5647 93 #endif
hudakz 9:a156d3de5647 94 _uip_udp_conn->appstate = &appdata;
hudakz 9:a156d3de5647 95 }
hudakz 9:a156d3de5647 96 else
hudakz 9:a156d3de5647 97 {
hudakz 9:a156d3de5647 98 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 99 printf("failed to allocate new connection\r\n");
hudakz 9:a156d3de5647 100 #endif
hudakz 9:a156d3de5647 101 return 0;
hudakz 9:a156d3de5647 102 }
hudakz 9:a156d3de5647 103 }
hudakz 9:a156d3de5647 104
hudakz 9:a156d3de5647 105 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 106 printf("rip: %s, port: %d\r\n", ip.asString(), port);
hudakz 9:a156d3de5647 107 #endif
hudakz 9:a156d3de5647 108 }
hudakz 9:a156d3de5647 109
hudakz 9:a156d3de5647 110 if (_uip_udp_conn) {
hudakz 9:a156d3de5647 111 if (appdata.packet_out == NOBLOCK) {
hudakz 9:a156d3de5647 112 appdata.packet_out = UipEthernet::ethernet->phy.allocBlock(UIP_UDP_MAXPACKETSIZE);
hudakz 9:a156d3de5647 113 appdata.out_pos = UIP_UDP_PHYH_LEN;
hudakz 9:a156d3de5647 114 if (appdata.packet_out != NOBLOCK)
hudakz 9:a156d3de5647 115 return 1;
hudakz 9:a156d3de5647 116 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 117 else
hudakz 9:a156d3de5647 118 printf("failed to allocate memory for packet\r\n");
hudakz 9:a156d3de5647 119 #endif
hudakz 9:a156d3de5647 120 }
hudakz 9:a156d3de5647 121
hudakz 9:a156d3de5647 122 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 123 else
hudakz 9:a156d3de5647 124 printf("previous packet on that connection not sent yet\r\n");
hudakz 9:a156d3de5647 125 #endif
hudakz 9:a156d3de5647 126 }
hudakz 9:a156d3de5647 127
hudakz 9:a156d3de5647 128 return 0;
hudakz 9:a156d3de5647 129 }
hudakz 9:a156d3de5647 130
hudakz 9:a156d3de5647 131 // Start building up a packet to send to the remote host specific in host and port
hudakz 9:a156d3de5647 132
hudakz 9:a156d3de5647 133 // Returns 1 if successful, 0 if there was a problem resolving the hostname or port
hudakz 9:a156d3de5647 134 int UdpSocket::beginPacket(const char* host, uint16_t port)
hudakz 9:a156d3de5647 135 {
hudakz 9:a156d3de5647 136 // Look up the host first
hudakz 9:a156d3de5647 137 int ret = 0;
hudakz 9:a156d3de5647 138 DnsClient dns;
hudakz 9:a156d3de5647 139 IpAddress remote_addr;
hudakz 9:a156d3de5647 140
hudakz 9:a156d3de5647 141 dns.begin(UipEthernet::ethernet->dnsServerIP());
hudakz 9:a156d3de5647 142 ret = dns.getHostByName(host, remote_addr);
hudakz 9:a156d3de5647 143 if (ret == 1) {
hudakz 9:a156d3de5647 144 return beginPacket(remote_addr, port);
hudakz 9:a156d3de5647 145 }
hudakz 9:a156d3de5647 146 else {
hudakz 9:a156d3de5647 147 return ret;
hudakz 9:a156d3de5647 148 }
hudakz 9:a156d3de5647 149 }
hudakz 9:a156d3de5647 150
hudakz 9:a156d3de5647 151 // Finish off this packet and send it
hudakz 9:a156d3de5647 152
hudakz 9:a156d3de5647 153 // Returns 1 if the packet was sent successfully, 0 if there was an error
hudakz 9:a156d3de5647 154 int UdpSocket::endPacket()
hudakz 9:a156d3de5647 155 {
hudakz 9:a156d3de5647 156 if (_uip_udp_conn && appdata.packet_out != NOBLOCK) {
hudakz 9:a156d3de5647 157 appdata.send = true;
hudakz 9:a156d3de5647 158 UipEthernet::ethernet->phy.resizeBlock(appdata.packet_out, 0, appdata.out_pos);
hudakz 9:a156d3de5647 159 uip_udp_periodic_conn(_uip_udp_conn);
hudakz 9:a156d3de5647 160 if (uip_len > 0) {
hudakz 9:a156d3de5647 161 _send(&appdata);
hudakz 9:a156d3de5647 162 return 1;
hudakz 9:a156d3de5647 163 }
hudakz 9:a156d3de5647 164 }
hudakz 9:a156d3de5647 165
hudakz 9:a156d3de5647 166 return 0;
hudakz 9:a156d3de5647 167 }
hudakz 9:a156d3de5647 168
hudakz 9:a156d3de5647 169 // Write a single byte into the packet
hudakz 9:a156d3de5647 170 size_t UdpSocket::write(uint8_t c)
hudakz 9:a156d3de5647 171 {
hudakz 9:a156d3de5647 172 return write(&c, 1);
hudakz 9:a156d3de5647 173 }
hudakz 9:a156d3de5647 174
hudakz 9:a156d3de5647 175 // Write size bytes from buffer into the packet
hudakz 9:a156d3de5647 176 size_t UdpSocket::write(const uint8_t* buffer, size_t size)
hudakz 9:a156d3de5647 177 {
hudakz 9:a156d3de5647 178 if (appdata.packet_out != NOBLOCK) {
hudakz 9:a156d3de5647 179 size_t ret = UipEthernet::ethernet->phy.writePacket
hudakz 9:a156d3de5647 180 (
hudakz 9:a156d3de5647 181 appdata.packet_out,
hudakz 9:a156d3de5647 182 appdata.out_pos,
hudakz 9:a156d3de5647 183 (uint8_t*)buffer,
hudakz 9:a156d3de5647 184 size
hudakz 9:a156d3de5647 185 );
hudakz 9:a156d3de5647 186 appdata.out_pos += ret;
hudakz 9:a156d3de5647 187 return ret;
hudakz 9:a156d3de5647 188 }
hudakz 9:a156d3de5647 189
hudakz 9:a156d3de5647 190 return 0;
hudakz 9:a156d3de5647 191 }
hudakz 9:a156d3de5647 192
hudakz 9:a156d3de5647 193 // Start processing the next available incoming packet
hudakz 9:a156d3de5647 194
hudakz 9:a156d3de5647 195 // Returns the size of the packet in bytes, or 0 if no packets are available
hudakz 9:a156d3de5647 196 int UdpSocket::parsePacket()
hudakz 9:a156d3de5647 197 {
hudakz 9:a156d3de5647 198 UipEthernet::ethernet->tick();
hudakz 9:a156d3de5647 199 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 200 if (appdata.packet_in != NOBLOCK) {
hudakz 9:a156d3de5647 201 printf("udp parsePacket freeing previous packet: %d\r\n", appdata.packet_in);
hudakz 9:a156d3de5647 202 }
hudakz 9:a156d3de5647 203 #endif
hudakz 9:a156d3de5647 204 UipEthernet::ethernet->phy.freeBlock(appdata.packet_in);
hudakz 9:a156d3de5647 205
hudakz 9:a156d3de5647 206 appdata.packet_in = appdata.packet_next;
hudakz 9:a156d3de5647 207 appdata.packet_next = NOBLOCK;
hudakz 9:a156d3de5647 208
hudakz 9:a156d3de5647 209 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 210 if (appdata.packet_in != NOBLOCK) {
hudakz 9:a156d3de5647 211 printf("udp parsePacket received packet: %d", appdata.packet_in);
hudakz 9:a156d3de5647 212 }
hudakz 9:a156d3de5647 213 #endif
hudakz 9:a156d3de5647 214
hudakz 9:a156d3de5647 215 int size = UipEthernet::ethernet->phy.blockSize(appdata.packet_in);
hudakz 9:a156d3de5647 216 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 217 if (appdata.packet_in != NOBLOCK) {
hudakz 9:a156d3de5647 218 printf(", size: %d\r\n", size);
hudakz 9:a156d3de5647 219 }
hudakz 9:a156d3de5647 220 #endif
hudakz 9:a156d3de5647 221 return size;
hudakz 9:a156d3de5647 222 }
hudakz 9:a156d3de5647 223
hudakz 9:a156d3de5647 224 // Number of bytes remaining in the current packet
hudakz 9:a156d3de5647 225 int UdpSocket::available()
hudakz 9:a156d3de5647 226 {
hudakz 9:a156d3de5647 227 UipEthernet::ethernet->tick();
hudakz 9:a156d3de5647 228 return UipEthernet::ethernet->phy.blockSize(appdata.packet_in);
hudakz 9:a156d3de5647 229 }
hudakz 9:a156d3de5647 230
hudakz 9:a156d3de5647 231 // Read a single byte from the current packet
hudakz 9:a156d3de5647 232 int UdpSocket::read()
hudakz 9:a156d3de5647 233 {
hudakz 9:a156d3de5647 234 static unsigned char c;
hudakz 9:a156d3de5647 235 if (read(&c, 1) > 0) {
hudakz 9:a156d3de5647 236 return c;
hudakz 9:a156d3de5647 237 }
hudakz 9:a156d3de5647 238
hudakz 9:a156d3de5647 239 return -1;
hudakz 9:a156d3de5647 240 }
hudakz 9:a156d3de5647 241
hudakz 9:a156d3de5647 242 // Read up to len bytes from the current packet and place them into buffer
hudakz 9:a156d3de5647 243
hudakz 9:a156d3de5647 244 // Returns the number of bytes read, or 0 if none are available
hudakz 9:a156d3de5647 245 int UdpSocket::read(unsigned char* buffer, size_t len)
hudakz 9:a156d3de5647 246 {
hudakz 9:a156d3de5647 247 UipEthernet::ethernet->tick();
hudakz 9:a156d3de5647 248 if (appdata.packet_in != NOBLOCK) {
hudakz 9:a156d3de5647 249 memaddress read = UipEthernet::ethernet->phy.readPacket(appdata.packet_in, 0, buffer, len);
hudakz 9:a156d3de5647 250 if (read == UipEthernet::ethernet->phy.blockSize(appdata.packet_in)) {
hudakz 9:a156d3de5647 251 UipEthernet::ethernet->phy.freeBlock(appdata.packet_in);
hudakz 9:a156d3de5647 252 appdata.packet_in = NOBLOCK;
hudakz 9:a156d3de5647 253 }
hudakz 9:a156d3de5647 254 else
hudakz 9:a156d3de5647 255 UipEthernet::ethernet->phy.resizeBlock(appdata.packet_in, read);
hudakz 9:a156d3de5647 256 return read;
hudakz 9:a156d3de5647 257 }
hudakz 9:a156d3de5647 258
hudakz 9:a156d3de5647 259 return 0;
hudakz 9:a156d3de5647 260 }
hudakz 9:a156d3de5647 261
hudakz 9:a156d3de5647 262 // Return the next byte from the current packet without moving on to the next byte
hudakz 9:a156d3de5647 263 int UdpSocket::peek()
hudakz 9:a156d3de5647 264 {
hudakz 9:a156d3de5647 265 UipEthernet::ethernet->tick();
hudakz 9:a156d3de5647 266 if (appdata.packet_in != NOBLOCK) {
hudakz 9:a156d3de5647 267 unsigned char c;
hudakz 9:a156d3de5647 268 if (UipEthernet::ethernet->phy.readPacket(appdata.packet_in, 0, &c, 1) == 1)
hudakz 9:a156d3de5647 269 return c;
hudakz 9:a156d3de5647 270 }
hudakz 9:a156d3de5647 271
hudakz 9:a156d3de5647 272 return -1;
hudakz 9:a156d3de5647 273 }
hudakz 9:a156d3de5647 274
hudakz 9:a156d3de5647 275 // Finish reading the current packet
hudakz 9:a156d3de5647 276 void UdpSocket::flush()
hudakz 9:a156d3de5647 277 {
hudakz 9:a156d3de5647 278 UipEthernet::ethernet->tick();
hudakz 9:a156d3de5647 279 UipEthernet::ethernet->phy.freeBlock(appdata.packet_in);
hudakz 9:a156d3de5647 280 appdata.packet_in = NOBLOCK;
hudakz 9:a156d3de5647 281 }
hudakz 9:a156d3de5647 282
hudakz 9:a156d3de5647 283 // Return the IP address of the host who sent the current incoming packet
hudakz 9:a156d3de5647 284 IpAddress UdpSocket::remoteIP()
hudakz 9:a156d3de5647 285 {
hudakz 9:a156d3de5647 286 return _uip_udp_conn ? ip_addr_uip(_uip_udp_conn->ripaddr) : IpAddress();
hudakz 9:a156d3de5647 287 }
hudakz 9:a156d3de5647 288
hudakz 9:a156d3de5647 289 // Return the port of the host who sent the current incoming packet
hudakz 9:a156d3de5647 290 uint16_t UdpSocket::remotePort()
hudakz 9:a156d3de5647 291 {
hudakz 9:a156d3de5647 292 return _uip_udp_conn ? ntohs(_uip_udp_conn->rport) : 0;
hudakz 9:a156d3de5647 293 }
hudakz 9:a156d3de5647 294
hudakz 9:a156d3de5647 295 // UIP callback function
hudakz 9:a156d3de5647 296 void uipudp_appcall()
hudakz 9:a156d3de5647 297 {
hudakz 9:a156d3de5647 298 if (uip_udp_userdata_t * data = (uip_udp_userdata_t *) (uip_udp_conn->appstate)) {
hudakz 9:a156d3de5647 299 if (uip_newdata()) {
hudakz 9:a156d3de5647 300 if (data->packet_next == NOBLOCK) {
hudakz 9:a156d3de5647 301 uip_udp_conn->rport = UDPBUF->srcport;
hudakz 9:a156d3de5647 302 uip_ipaddr_copy(uip_udp_conn->ripaddr, UDPBUF->srcipaddr);
hudakz 9:a156d3de5647 303 data->packet_next = UipEthernet::ethernet->phy.allocBlock(ntohs(UDPBUF->udplen) - UIP_UDPH_LEN);
hudakz 9:a156d3de5647 304
hudakz 9:a156d3de5647 305 //if we are unable to allocate memory the packet is dropped. udp doesn't guarantee packet delivery
hudakz 9:a156d3de5647 306 if (data->packet_next != NOBLOCK) {
hudakz 9:a156d3de5647 307 //discard Linklevel and IP and udp-header and any trailing bytes:
hudakz 9:a156d3de5647 308 UipEthernet::ethernet->phy.copyPacket
hudakz 9:a156d3de5647 309 (
hudakz 9:a156d3de5647 310 data->packet_next,
hudakz 9:a156d3de5647 311 0,
hudakz 9:a156d3de5647 312 UipEthernet::inPacket,
hudakz 9:a156d3de5647 313 UIP_UDP_PHYH_LEN,
hudakz 9:a156d3de5647 314 UipEthernet::ethernet->phy.blockSize(data->packet_next)
hudakz 9:a156d3de5647 315 );
hudakz 9:a156d3de5647 316 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 317 printf
hudakz 9:a156d3de5647 318 (
hudakz 9:a156d3de5647 319 "udp, uip_newdata received packet: %d, size: %d\r\n",
hudakz 9:a156d3de5647 320 data->packet_next,
hudakz 9:a156d3de5647 321 UIPEthernet.network.blockSize(data->packet_next)
hudakz 9:a156d3de5647 322 );
hudakz 9:a156d3de5647 323 #endif
hudakz 9:a156d3de5647 324 }
hudakz 9:a156d3de5647 325 }
hudakz 9:a156d3de5647 326 }
hudakz 9:a156d3de5647 327
hudakz 9:a156d3de5647 328 if (uip_poll() && data->send)
hudakz 9:a156d3de5647 329 {
hudakz 9:a156d3de5647 330 //set uip_slen (uip private) by calling uip_udp_send
hudakz 9:a156d3de5647 331 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 332 printf
hudakz 9:a156d3de5647 333 (
hudakz 9:a156d3de5647 334 "udp, uip_poll preparing packet to send: %d, size: %d\r\n",
hudakz 9:a156d3de5647 335 data->packet_out,
hudakz 9:a156d3de5647 336 UIPEthernet.network.blockSize(data->packet_out)
hudakz 9:a156d3de5647 337 );
hudakz 9:a156d3de5647 338 #endif
hudakz 9:a156d3de5647 339 UipEthernet::uipPacket = data->packet_out;
hudakz 9:a156d3de5647 340 UipEthernet::uipHeaderLen = UIP_UDP_PHYH_LEN;
hudakz 9:a156d3de5647 341 uip_udp_send(data->out_pos - (UIP_UDP_PHYH_LEN));
hudakz 9:a156d3de5647 342 }
hudakz 9:a156d3de5647 343 }
hudakz 9:a156d3de5647 344 }
hudakz 9:a156d3de5647 345
hudakz 9:a156d3de5647 346 /**
hudakz 9:a156d3de5647 347 * @brief
hudakz 9:a156d3de5647 348 * @note
hudakz 9:a156d3de5647 349 * @param
hudakz 9:a156d3de5647 350 * @retval
hudakz 9:a156d3de5647 351 */
hudakz 9:a156d3de5647 352 void UdpSocket::_send(uip_udp_userdata_t* data)
hudakz 9:a156d3de5647 353 {
hudakz 9:a156d3de5647 354 uip_arp_out(); //add arp
hudakz 9:a156d3de5647 355 if (uip_len == UIP_ARPHDRSIZE) {
hudakz 9:a156d3de5647 356 UipEthernet::uipPacket = NOBLOCK;
hudakz 9:a156d3de5647 357 UipEthernet::packetState &= ~UIPETHERNET_SENDPACKET;
hudakz 9:a156d3de5647 358 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 359 printf("udp, uip_poll results in ARP-packet\r\n");
hudakz 9:a156d3de5647 360 #endif
hudakz 9:a156d3de5647 361 }
hudakz 9:a156d3de5647 362 else {
hudakz 9:a156d3de5647 363 //arp found ethaddr for ip (otherwise packet is replaced by arp-request)
hudakz 9:a156d3de5647 364 data->send = false;
hudakz 9:a156d3de5647 365 data->packet_out = NOBLOCK;
hudakz 9:a156d3de5647 366 UipEthernet::packetState |= UIPETHERNET_SENDPACKET;
hudakz 9:a156d3de5647 367 #ifdef UIPETHERNET_DEBUG_UDP
hudakz 9:a156d3de5647 368 printf("udp, uip_packet to send: %d\r\n", UIPEthernet::uip_packet);
hudakz 9:a156d3de5647 369 #endif
hudakz 9:a156d3de5647 370 }
hudakz 9:a156d3de5647 371
hudakz 9:a156d3de5647 372 UipEthernet::ethernet->network_send();
hudakz 9:a156d3de5647 373 }
hudakz 9:a156d3de5647 374 #endif