Ethernet server with client´s IP address filter

Using Arduino Networking, Protocols, and Devices
1

Hello evereyone,

I´m using arduino with the ethernet shield and arduino webserver example. In this example, arduino reads client´s get requests and respond with some html page. My problem is, that I want to respond only for one defined client. In header of every packet of client´s get request is his source IP address. So, i would like to read this IP, compare with pre the predefined and if there is a match, then send the response...but i can´t find some function in the ethernet library to access packet header or specifically its source IP address. Is there someone, who knows, how to do this stuff ? Is there any additional library to work with packets ?

Every suggestion is welcomed.

2

I modified the IDE v1.0.2 ethernet library to retrieve the client ip. I attached the modified files to this post.
Ethernet.h
Ethernet.cpp
EthernetClient.h
EthernetClient.cpp

Save your original library files first! Then replace with these.

To get the client ip in your sketch:

  EthernetClient client = server.available();
  if(client) {
    Serial.print("Client IP: ");
    Serial.println(client.remoteIP());
  // rest of your loop code

edit: I put the comment "// SurferTim added" at each change in the files if you want to know what was changed.

If you want to restrict your remote IP to the 192.168.1.x subnet, this works:

    IPAddress ipBuf;   
    Serial.print("Client IP: ");
    ipBuf = client.remoteIP();
    Serial.println(ipBuf);

    if((ipBuf[0] == 192) && (ipBuf[1] == 168) && (ipBuf[2] == 1)) Serial.println("IP OK");
    else Serial.println("IP fail");

Ethernet.h (1.23 KB)

Ethernet.cpp (3.33 KB)

EthernetClient.h (870 Bytes)

EthernetClient.cpp (3.4 KB)

3

Probably a similar way to get the remote IP in the discussion below.

//zoomkat 12-8-11
//simple button GET with iframe code
//for use with IDE 1.0
//open serial monitor to see what the arduino receives
//use the \ slash to escape the " in the html 
//address will look like http://192.168.1.102:84 when submited
//for use with W5100 based ethernet shields

#include <SPI.h>
#include <Ethernet.h>

byte rip[4];
//byte rip[] = {0,0,0,0};
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 192, 168, 1, 102 }; // ip in lan
byte gateway[] = { 192, 168, 1, 1 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(84); //server port

String readString; 

//////////////////////

void setup(){

  pinMode(5, OUTPUT); //pin selected to control
  //start Ethernet
  Ethernet.begin(mac, ip, gateway, subnet);
  server.begin();

  //enable serial data print 
  Serial.begin(9600); 
  Serial.println("server LED test 1.0"); // so I can keep track of what is loaded
}

void loop(){
  // Create a client connection
  EthernetClient client = server.available();
  if (client) {
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();

        //read char by char HTTP request
        if (readString.length() < 100) {

          //store characters to string 
          readString += c; 
          //Serial.print(c);
        } 

        //if HTTP request has ended
        if (c == '\n') {

          ///////////////
          Serial.println(readString); //print to serial monitor for debuging 
client.getRemoteIP(rip);
for (int bcount= 0; bcount < 4; bcount++)
     { 
        Serial.print(rip[bcount], DEC); 
        if (bcount<3) Serial.print(".");
     } 

Serial.println();
          //now output HTML data header
             if(readString.indexOf('?') >=0) { //don't send new page
               client.println("HTTP/1.1 204 Zoomkat");
               client.println();
               client.println();  
             }
             else {
          client.println("HTTP/1.1 200 OK"); //send new page
          client.println("Content-Type: text/html");
          client.println();

          client.println("<HTML>");
          client.println("<HEAD>");
          client.println("<TITLE>Arduino GET test page</TITLE>");
          client.println("</HEAD>");
          client.println("<BODY>");

          client.println("<H1>Zoomkat's simple Arduino button</H1>");
          
          client.println("<a href=\"/?on\" target=\"inlineframe\">ON</a>"); 
          client.println("<a href=\"/?off\" target=\"inlineframe\">OFF</a>"); 

          //client.println("<IFRAME name=inlineframe src=\"res://D:/WINDOWS/dnserror.htm\" width=1 height=1\">");
          client.println("<IFRAME name=inlineframe style=\"display:none\" >");          
          client.println("</IFRAME>");

          client.println("</BODY>");
          client.println("</HTML>");
             }

          delay(1);
          //stopping client
          client.stop();

          ///////////////////// control arduino pin
          if(readString.indexOf("on") >0)//checks for on
          {
            digitalWrite(5, HIGH);    // set pin 5 high
            Serial.println("Led On");
          }
          if(readString.indexOf("off") >0)//checks for off
          {
            digitalWrite(5, LOW);    // set pin 5 low
            Serial.println("Led Off");
          }
          //clearing string for next read
          readString="";

        }
      }
    }
  }
}
4

@zoomkat: It probably does if the ethernet library has been modified to include this function. This is not a function in the standard ethernet library.

client.getRemoteIP(rip);

There is really one way to get the remote IP in the W5100 code. All roads lead to Rome, so to speak.

5

Thank you very much, it works as I wanted ... :slight_smile:

6

SurferTim:
@zoomkat: It probably does if the ethernet library has been modified to include this function. This is not a function in the standard ethernet library.

client.getRemoteIP(rip);

There is really one way to get the remote IP in the W5100 code. All roads lead to Rome, so to speak.

it is interesting that the "rip" way I used only required two file mods and your way used four. Maybe the "ethernet" files actually call the "ethernetclient" files during the compile process. My code calls ethernet.h but I modified the ethernetclient files (and things seem to work). I'm sure it all goes back to the programming of the w5100 chips and what is available there for use.

7

@zoomkat: That was the first challenge. The IPAddress stuff is in Ethernet.h and Ethernet.cpp, and the socket number is in EthernetClient.h and EthernetClient.cpp. I make an intermediate call to the EthernetClient module to get the current socket number. I use the Ethernet module to be able to return an IPAddress type. Just a matter of convenience, I guess. It stays in convention with the other ip address functions.

For those who haven't figured out what this does, it is a miniature firewall.

8

Hello.. I see this is old topic but I have a problem using this modifications to libraryes.. When I have download your modified files and put them in my src folder of ethernet library it says:

Proba_server.ino: In function 'void loop()':
Proba_server:76: error: 'class EthernetClient' has no member named 'remoteIP'

I tried changing few diffrent things in librarys that i have seen on forum but nothing helps

9

If you got that message, you did not successfully replace the files. Did you download and replace all four files in libraries/Ethernet? All these:
EthernetClient.h
EthernetClient.cpp
Ethernet.h
Ethernet.cpp

I always recommend renaming the originals so you have something to go back to if all else fails.

10

Thanks for quick reply,
I didn't bother of making backups because you nicely marked what you changed.
And I did replaced all 4 files. 2 or 3 times to be sure. Thats why I do not understand bug. I use 1.0.6 version of software and arduino uno

11

Are you certain you replaced the correct files? Are you using Windows? They may be in c:/Program files/Arduino.

12

I feel little stupid now. I don't know why but I had ethernet library in My Documents\Arduino. When I replaced ones in C:\Program Files it started to work. And I explicitly imported the replaced libraryes from My Documents so I do not understand now. But it is importat that it works now

Thank you :smiley:

13

I'm reading trough ethernet and ethernetclient libraryes and I can't find some function that can return socket number of curent client that I'm printing IP of. I don't know how to add that to library file.
If i understood it right socket number is something like a channel on which server and client communicates and I have a need to see that channel. If there is a way to see it I would be grateful

14

I haven't tried it, but this should do it for you.

Add this in EthernetClient.h after the status function prototype

  uint8_t status();

// add this
  uint8_t getSocket();

Add this to EthernetClient.cpp after my remoteIP function

// SurferTim added
IPAddress EthernetClient::remoteIP() {
    return Ethernet.remoteIP(_sock);
}
// end of add

// add this
uint8_t EthernetClient::getSocket() {
  return(_sock);
}

Then use it like this:

byte thisSocket = client.getSocket();

It will return the socket numbers 0 to 3 (or 0 to 7 if w5200) or MAX_SOCK_NUM, which is 4 (or 8 if w5200) if no socket number.

15

The result is as expected. I use 2 clients in local network. But every time i make a request to server client get diffrent socket. They're jumping from 0 to 1. Sometimes 2. I thought that when they connect they will have static socket just for that client until it dissconets

Take a look at code. This does nothing smart but I'm trying to implement some light security for home automation

The index page have Text box and submit button. Page 2 only have one paragraph which says you are logged in

I want for multiple user to be able to connect and each have to insert password and then then they can change some stuff on page 2. I welcome every idea and suggestion.. In meantime i will try some more stuff

#include <SPI.h>
#include <Ethernet.h>
#include <SD.h>

#define REQ_BUF_SZ   40

byte mac[] = { 
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 
  192, 168, 0, 102 }; // ip in lan
byte gateway[] = { 
  192, 168, 0, 1 }; // internet access via router
byte subnet[] = { 
  255, 255, 255, 0 }; //subnet mask
EthernetServer server(80);
; //server port
File webFile;                    // handle to files on SD card
char HTTP_req[REQ_BUF_SZ] = {
  0}; // buffered HTTP request stored as null terminated string
char req_index = 0;              // index into HTTP_req buffer
boolean sifra_ok=0;
boolean sifra[4]={0};
byte ip_klijennt[4]={0};


//////////////////////

void setup(){
  // disable Ethernet chip
  pinMode(10, OUTPUT);
  digitalWrite(10, HIGH);
 Serial.begin(9600); 
  // initialize SD card
  Serial.println("Initializing SD card...");
  if (!SD.begin(4)) {
    Serial.println("ERROR - SD card initialization failed!");
    return;    // init failed
  }
  Serial.println("SUCCESS - SD card initialized.");
  // check for index.htm file
  if (!SD.exists("index.htm")) {
    Serial.println("ERROR - Can't find index.htm file!");
    return;  // can't find index file
  }
  Serial.println("SUCCESS - Found index.htm file.");
  //start Ethernet
  Ethernet.begin(mac, ip, gateway, gateway, subnet);
  server.begin();

  //enable serial data print 
 
  Serial.println("Pass test"); // so I can keep track of what is loaded
}

void loop(){
  // Create a client connection
  EthernetClient client = server.available();

  if (client) {
      Serial.print("Client IP: ");
   Serial.println(client.remoteIP());
   Serial.print("Socket je:");
   byte thisSocket = client.getSocket();
   Serial.println(thisSocket);
    boolean currentLineIsBlank = true;
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();

        if (req_index < (REQ_BUF_SZ - 1)) {
          HTTP_req[req_index] = c;          // save HTTP request character
          req_index++;
        }

Serial.print(c);
        //if HTTP request has ended
        if (c == '\n' && currentLineIsBlank) {
         Serial.println();
         Serial.println(HTTP_req);

           //see what was captured
if(StrContains(HTTP_req, "Pass=sifra"))
{
sifra_ok=1;}
else if(StrContains(HTTP_req, "Pass=") || StrContains(HTTP_req, "GET / ")  || StrContains(HTTP_req, "GET /index.htm"))
{sifra_ok=0;
webFile = SD.open("index.htm");}
          //now output HTML data header

          client.println(F("HTTP/1.1 200 OK"));
          client.println(F("Content-Type: text/html"));
          client.println(F("Connnection: close"));
          client.println();



          if (sifra_ok) {
            webFile = SD.open("page2.htm");        // open web page file
          }
          else if (StrContains(HTTP_req, "GET / ")  || StrContains(HTTP_req, "GET /index.htm")) {
            webFile = SD.open("index.htm");        // open web page file
          }
          // send web page to client
          if (webFile) {
            while(webFile.available()) {
              client.write(webFile.read());
            }
            webFile.close();
          }
          // reset buffer index and all buffer elements to 0
          req_index = 0;
          StrClear(HTTP_req, REQ_BUF_SZ);
          break;
        }
        // every line of text received from the client ends with \r\n
        if (c == '\n') {
          // last character on line of received text
          // starting new line with next character read
          currentLineIsBlank = true;
        } 
        else if (c != '\r') {
          // a text character was received from client
          currentLineIsBlank = false;
        }
      } // end if (client.available())
    } // end while (client.connected())
    delay(1);      // give the web browser time to receive the data
    client.stop(); // close the connection
  } // end if (client)
}

// sets every element of str to 0 (clears array)
void StrClear(char *str, char length)
{
  for (int i = 0; i < length; i++) {
    str[i] = 0;
  }
}

// searches for the string sfind in the string str
// returns 1 if string found
// returns 0 if string not found
char StrContains(char *str, char *sfind)
{
  char found = 0;
  char index = 0;
  char len;

  len = strlen(str);

  if (strlen(sfind) > len) {
    return 0;
  }
  while (index < len) {
    if (str[index] == sfind[found]) {
      found++;
      if (strlen(sfind) == found) {
        return 1;
      }
    }
    else {
      found = 0;
    }
    index++;
  }

  return 0;
}
16

Yes, each connection will get a different socket. When a client connects, a new socket starts listening for a new client. The next connection attempt will get that new socket.

I have a telnet/persistent connection example sketch in the playground. It will require some mods to do what you want, but it should give you a start in the right direction.
http://playground.arduino.cc/Code/Telnet

17

I actually didn't understand your example, but I managed to did what I wanted using IP adress. Here is that part of code. It is a mess and some comments are on Croatian but it is working

#include <SPI.h>
#include <Ethernet.h>
#include <SD.h>

#define REQ_BUF_SZ   40

byte mac[] = { 
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 
  192, 168, 0, 102 }; // ip in lan
byte gateway[] = { 
  192, 168, 0, 1 }; // internet access via router
byte subnet[] = { 
  255, 255, 255, 0 }; //subnet mask
EthernetServer server(80);
; //server port
File webFile;                    // handle to files on SD card
char HTTP_req[REQ_BUF_SZ] = {
  0}; // buffered HTTP request stored as null terminated string
char req_index = 0;              // index into HTTP_req buffer
byte ip_klijent[4]={0};
boolean spremljeno=0;


//////////////////////

void setup(){
  // disable Ethernet chip
  pinMode(10, OUTPUT);
  digitalWrite(10, HIGH);
 Serial.begin(9600); 
  // initialize SD card
  Serial.println("Initializing SD card...");
  if (!SD.begin(4)) {
    Serial.println("ERROR - SD card initialization failed!");
    return;    // init failed
  }
  Serial.println("SUCCESS - SD card initialized.");
  // check for index.htm file
  if (!SD.exists("index.htm")) {
    Serial.println("ERROR - Can't find index.htm file!");
    return;  // can't find index file
  }
  Serial.println("SUCCESS - Found index.htm file.");
  //start Ethernet
  Ethernet.begin(mac, ip, gateway, gateway, subnet);
  server.begin();

  //enable serial data print 
 
  Serial.println("Pass test"); // so I can keep track of what is loaded
}

void loop(){
  // Create a client connection
  EthernetClient client = server.available();

  if (client) {
      Serial.print("Client IP: ");     
     IPAddress IP=client.remoteIP();
   Serial.println(IP);
   Serial.print("Socket je:");
   byte thisSocket = client.getSocket();
   Serial.println(thisSocket);
    boolean currentLineIsBlank = true;
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();

        if (req_index < (REQ_BUF_SZ - 1)) {
          HTTP_req[req_index] = c;          // save HTTP request character
          req_index++;
        }

Serial.print(c);
        //if HTTP request has ended
        if (c == '\n' && currentLineIsBlank) {
         Serial.println();
         Serial.println(HTTP_req);

           //see what was captured
           
           for(int i=0; i<4; i++){   //za vec prije spremljene stranice
           if(IP[3]==ip_klijent[i])
           spremljeno=1;
           }
if(StrContains(HTTP_req, "Pass=sifra"))  // ako je dosla tocna sifra
{
for (int i=0; i<4;i++) {       //ako je vec ta ip adresa spremljena
if(IP[3]==ip_klijent[i])
spremljeno=1;
}

if(spremljeno==0)              // ako jos nije spremljena trazi se prazno mjesto i sprema se
{for(int i=0; i<4;i++){
if(ip_klijent[i]==0){
ip_klijent[i]=IP[3];
i=4;
spremljeno=1;}
}}
}
else if(StrContains(HTTP_req, "Pass=") || StrContains(HTTP_req, "GET / ")  || StrContains(HTTP_req, "GET /index.htm"))  //ako nije dosla tocna sifra, ali doso je novi zahtjev
{
webFile = SD.open("index.htm");}
          //now output HTML data header

          client.println(F("HTTP/1.1 200 OK"));
          client.println(F("Content-Type: text/html"));
          client.println(F("Connnection: close"));
          client.println();



          if (spremljeno==1) {
            webFile = SD.open("page2.htm");        // open web page file
          }
          else if (StrContains(HTTP_req, "GET / ")  || StrContains(HTTP_req, "GET /index.htm")) {
            webFile = SD.open("index.htm");        // open web page file
          }
          // send web page to client
          if (webFile) {
            while(webFile.available()) {
              client.write(webFile.read());
            }
            webFile.close();
          }
          // reset buffer index and all buffer elements to 0
          req_index = 0;
          StrClear(HTTP_req, REQ_BUF_SZ);
          break;
        }
        // every line of text received from the client ends with \r\n
        if (c == '\n') {
          // last character on line of received text
          // starting new line with next character read
          currentLineIsBlank = true;
        } 
        else if (c != '\r') {
          // a text character was received from client
          currentLineIsBlank = false;
        }
      } // end if (client.available())
    } // end while (client.connected())
    delay(1);      // give the web browser time to receive the data
    client.stop(); // close the connection
    spremljeno=0;
  } // end if (client)
}

// sets every element of str to 0 (clears array)
void StrClear(char *str, char length)
{
  for (int i = 0; i < length; i++) {
    str[i] = 0;
  }
}

// searches for the string sfind in the string str
// returns 1 if string found
// returns 0 if string not found
char StrContains(char *str, char *sfind)
{
  char found = 0;
  char index = 0;
  char len;

  len = strlen(str);

  if (strlen(sfind) > len) {
    return 0;
  }
  while (index < len) {
    if (str[index] == sfind[found]) {
      found++;
      if (strlen(sfind) == found) {
        return 1;
      }
    }
    else {
      found = 0;
    }
    index++;
  }

  return 0;
}
18

Post too long. Splitting into 2 parts.

Running on Arduino IDE version 1.6.5. Downloaded all four files. Renamed the originals and moved in the new four. Lots of errors.

First, it could not find W5100.h so I copied all 5 files from /src/utility into /src and that did not fly so I modified the include to say #include "utility/w5100.h" and that causes a different set of errors.

All error statement sets are here, separated into the 3 different ways, each with a note of what was being done. Old to programming but youngish to C and very young to Arduino! Thanks for any pointers to help get this working.

Will pull the new 4 back out till I hear back. Thanks for helping.

Mike

After putting the four files into \Arduino\libraries\Ethernet\src

Arduino: 1.6.5 (Windows 7), Board: "Arduino Uno"

Using library SPI in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\SPI

Using library Ethernet in folder: C:\Program Files (x86)\Arduino\libraries\Ethernet

C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\SPI -IC:\Program Files (x86)\Arduino\libraries\Ethernet\src C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\WebServer.cpp -o C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\WebServer.cpp.o

Using previously compiled file: C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\SPI\SPI.cpp.o

Using previously compiled file: C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\Ethernet\Dhcp.cpp.o

Using previously compiled file: C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\Ethernet\Dns.cpp.o

C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\SPI -IC:\Program Files (x86)\Arduino\libraries\Ethernet\src C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp -o C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\Ethernet\Ethernet.cpp.o

C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:1:19: fatal error: w5100.h: No such file or directory
#include "w5100.h"
^
compilation terminated.
Error compiling.

After copying of all 5 the files from src/utility (this brought in w5100.h to \Etnernet)

Arduino: 1.6.5 (Windows 7), Board: "Arduino Uno"

Using library SPI in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\SPI

Using library Ethernet in folder: C:\Program Files (x86)\Arduino\libraries\Ethernet

C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\SPI -IC:\Program Files (x86)\Arduino\libraries\Ethernet\src C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\WebServer.cpp -o C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\WebServer.cpp.o

Using previously compiled file: C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\SPI\SPI.cpp.o

Using previously compiled file: C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\Ethernet\Dhcp.cpp.o

Using previously compiled file: C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\Ethernet\Dns.cpp.o

C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\SPI -IC:\Program Files (x86)\Arduino\libraries\Ethernet\src C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp -o C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\Ethernet\Ethernet.cpp.o

C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp: In member function 'void EthernetClass::begin(uint8_t*, IPAddress, IPAddress, IPAddress, IPAddress)':
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:64:39: error: no matching function for call to 'W5100Class::setIPAddress(IPAddress::&)'
W5100.setIPAddress(local_ip._address);
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:64:39: note: candidate is:
In file included from C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:1:0:
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\w5100.h:400:6: note: void W5100Class::setIPAddress(uint8_t*)
void W5100Class::setIPAddress(uint8_t _addr) {
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\w5100.h:400:6: note: no known conversion for argument 1 from 'IPAddress::' to 'uint8_t {aka unsigned char*}'
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:65:38: error: no matching function for call to 'W5100Class::setGatewayIp(IPAddress::&)'
W5100.setGatewayIp(gateway._address);
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:65:38: note: candidate is:
In file included from C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:1:0:
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\w5100.h:376:6: note: void W5100Class::setGatewayIp(uint8_t*)
void W5100Class::setGatewayIp(uint8_t _addr) {
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\w5100.h:376:6: note: no known conversion for argument 1 from 'IPAddress::' to 'uint8_t {aka unsigned char*}'
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:66:38: error: no matching function for call to 'W5100Class::setSubnetMask(IPAddress::&)'
W5100.setSubnetMask(subnet._address);
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:66:38: note: candidate is:
In file included from C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:1:0:
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\w5100.h:384:6: note: void W5100Class::setSubnetMask(uint8_t*)
void W5100Class::setSubnetMask(uint8_t _addr) {
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\w5100.h:384:6: note: no known conversion for argument 1 from 'IPAddress::' to 'uint8_t {aka unsigned char*}'
Error compiling.

continued on part 2

19

part 2

after changing the include in Ethernet.cpp for w5100.h to say #include "utility/w5100.h"

Arduino: 1.6.5 (Windows 7), Board: "Arduino Uno"

Using library SPI in folder: C:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\SPI

Using library Ethernet in folder: C:\Program Files (x86)\Arduino\libraries\Ethernet

C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\SPI -IC:\Program Files (x86)\Arduino\libraries\Ethernet\src C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\WebServer.cpp -o C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\WebServer.cpp.o

Using previously compiled file: C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\SPI\SPI.cpp.o

Using previously compiled file: C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\Ethernet\Dhcp.cpp.o

Using previously compiled file: C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\Ethernet\Dns.cpp.o

C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\variants\standard -IC:\Program Files (x86)\Arduino\hardware\arduino\avr\libraries\SPI -IC:\Program Files (x86)\Arduino\libraries\Ethernet\src C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp -o C:\Users\mikey\AppData\Local\Temp\build5397376202036860504.tmp\Ethernet\Ethernet.cpp.o

C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp: In member function 'void EthernetClass::begin(uint8_t*, IPAddress, IPAddress, IPAddress, IPAddress)':
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:64:39: error: no matching function for call to 'W5100Class::setIPAddress(IPAddress::&)'
W5100.setIPAddress(local_ip._address);
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:64:39: note: candidate is:
In file included from C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:1:0:
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\utility/w5100.h:400:6: note: void W5100Class::setIPAddress(uint8_t*)
void W5100Class::setIPAddress(uint8_t _addr) {
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\utility/w5100.h:400:6: note: no known conversion for argument 1 from 'IPAddress::' to 'uint8_t {aka unsigned char*}'
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:65:38: error: no matching function for call to 'W5100Class::setGatewayIp(IPAddress::&)'
W5100.setGatewayIp(gateway._address);
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:65:38: note: candidate is:
In file included from C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:1:0:
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\utility/w5100.h:376:6: note: void W5100Class::setGatewayIp(uint8_t*)
void W5100Class::setGatewayIp(uint8_t _addr) {
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\utility/w5100.h:376:6: note: no known conversion for argument 1 from 'IPAddress::' to 'uint8_t {aka unsigned char*}'
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:66:38: error: no matching function for call to 'W5100Class::setSubnetMask(IPAddress::&)'
W5100.setSubnetMask(subnet._address);
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:66:38: note: candidate is:
In file included from C:\Program Files (x86)\Arduino\libraries\Ethernet\src\Ethernet.cpp:1:0:
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\utility/w5100.h:384:6: note: void W5100Class::setSubnetMask(uint8_t*)
void W5100Class::setSubnetMask(uint8_t _addr) {
^
C:\Program Files (x86)\Arduino\libraries\Ethernet\src\utility/w5100.h:384:6: note: no known conversion for argument 1 from 'IPAddress::' to 'uint8_t {aka unsigned char*}'
Error compiling.

20

Some things have changed in w5100.h and w5100.cpp. You must change some statements in Ethernet.cpp.

// this needs to be changed. Note the .raw_address() addition.
int EthernetClass::begin(uint8_t *mac_address)
{
  static DhcpClass s_dhcp;
  _dhcp = &s_dhcp;


  // Initialise the basic info
  W5100.init();
  W5100.setMACAddress(mac_address);
  W5100.setIPAddress(IPAddress(0,0,0,0).raw_address());

  // Now try to get our config info from a DHCP server
  int ret = _dhcp->beginWithDHCP(mac_address);
  if(ret == 1)
  {
    // We've successfully found a DHCP server and got our configuration info, so set things
    // accordingly
    W5100.setIPAddress(_dhcp->getLocalIp().raw_address());
    W5100.setGatewayIp(_dhcp->getGatewayIp().raw_address());
    W5100.setSubnetMask(_dhcp->getSubnetMask().raw_address());
    _dnsServerAddress = _dhcp->getDnsServerIp();
  }

  return ret;
}

// and the same here.
void EthernetClass::begin(uint8_t *mac, IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet)
{
  W5100.init();
  SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
  W5100.setMACAddress(mac);
  W5100.setIPAddress(local_ip.raw_address());
  W5100.setGatewayIp(gateway.raw_address());
  W5100.setSubnetMask(subnet.raw_address());
  SPI.endTransaction();
  _dnsServerAddress = dns_server;
}