ColdFire/68K Microcontrollers and ProcessorsのトピックRe: changing ip coldfire TCP/IP

changing ip coldfire TCP/IP

faustino — Mon, 28 Sep 2009 05:18:26 GMT

Excuse me I am working with ColdFire TCP/IP stack in the M52233 demo board, and I want to know if anyone has a example code that change the ip, submask, gateway via web page. Because I have problems with the html forms, I can do a form but only get the first variable for example…any.html/?ip=192.168.10.1&smask=255.255.255.0 I only get the IP value in my forms this is my first problem I only get one value and another problem is how to save this value in the flash and then when I restart the board I keep these values.
I have tried put more than one( ?)
eg. Any.htm/?ip=192.168.10.1?smask=255.255.255.0 But I don’t have results Best regards

Re: changing ip coldfire TCP/IP

PaoloRenzo — Mon, 28 Sep 2009 23:02:27 GMT

Look at AN3906SW LCF file as a clue to do this in CW. Source code was for a V1, but C and LCF stuff is the same. Now you have to look for a mcf5223x flash driver and how to use this as a reference in interniche stack.

Re: changing ip coldfire TCP/IP

MCF52233 — Tue, 29 Sep 2009 11:44:24 GMT

hi ,

u hv to change ur form function little bit.

1st add ur form function in structure

say,

const FORM_STRUCTURE forms[] =
        {
         {"led", form_led_function},
         {"ip",  form_custom_function}

        };

then in function form_custom_function

check for the start of ur value by seeing '=' and delimiter '&'

and just save it using flash drivers function.

and while displaying this values on web pages read the correspondig

location from the flash.

Re: changing ip coldfire TCP/IP

faustino — Wed, 30 Sep 2009 02:31:05 GMT

Thanks for answered me

But I need to do multiple variables in one html form

form name="input" action="/lab2.htm">IP:<input type="text" name=user value=""/>Mask:<input type="text" name=user2 value="" /><input type="submit" value="Submit" /></form

When I press the submit bottom I will get two variables in this case the ip and submask that the user write and I need to handler to the forms
if I press submit bottom any.html/?user=192.168.1.0&user2=205.205.205.0and in the structure forms that you say

const FORM_STRUCTURE forms[] =
        {
         {"led", form_led_function},
         {"serial", form_serial_function},
         {"var",     form_var_function},
         {"user",     form_user_function},
         {"user2",     form_user2_function},  //FSL This is not implemented....should remove. Think we can delete the function too!!
         {"",  form_led_function}
        };

void form_user_function (char *data)
{

IP_v4=datastrtoint(data);

netstatic[0].n_ipaddr = (IP_v4);

//LCD_String_CFE(data,0,1);

}

void form_user2_function (char *data)
{
LCD_Init();
LCD_String_CFE(data,3,1);

}

The form_user2_funcion should writte in my lcd but i cant see these data... but if i change the variables in the http direccion. user2 first i can see the data into the lcd characters.

any.html/?user2=192.168.1.0 &user=205.205.205.0

do you knwo what am i doing wrong?

Re: changing ip coldfire TCP/IP

MCF52233 — Wed, 30 Sep 2009 12:04:51 GMT

hi ,

see wen u press submit button,u'll get

any.html/?user=192.168.1.0&user2=205.205.205.0

This is the flow in software.

freescale_http_process

freescale_http_read_header

freescale_process_header

pre_process_filename

process_form

<fn>pre_process_filename :check for the "?" and data after "?" is process in <fn>process_form

In process_form check for the structure

if data after "?" inclued something like led=LED_TOGGLE1

then called appropriate funtion pointer

similarly in ur case u dont require 2 structure entries.u only chk for "user" or "user2" not both and in

their function pointer process all data afterwords.

Re: changing ip coldfire TCP/IP

faustino — Thu, 01 Oct 2009 08:41:36 GMT

hi tanks

I have some problems with it...

I have a form that have 2 textfield. when I fill the textfields and I press sumbit bottom I have in the url this
any.html/?ip=192.168.001.098&ip=255.255.255.000

Suppose that I put these values...

and int form structure I have

const FORM_STRUCTURE forms[] =
        {
        // {"led", form_led_function},
         {"serial", form_serial_function},
         {"var",     form_var_function},
         {"ip",    form_ip_function},
        };

and in my form ip function

void form_ip_function( char *data )
{
char n=0;

for (n=0; n<=14; n++)
{

if(n<=14)
{
IP[n]=data[n];
}

if(n>=19 & n<=33)
{
Mask[n-19]=data[n];
}

}

IP_v4=datastrtoint(IP); // convierte a entero y lo coloca en ipv4
Mask_v4=datastrtoint(Mask);

netstatic[0].n_ipaddr = (IP_v4);
netstatic[0].snmask = (Mask_v4);

//LCD_Init();
//LCD_String_CFE(data,3,2);

}

the function datastrtoint converts the data char to int and return the value for the struct that has the ip and submask in iniche code, these is the code...

int datastrtoint(char *string)
{

int x=0,n=0;
char num0[3],num1[3],num2[3],num3[3];
int octeto0,octeto1,octeto2,octeto3;
int data;

// length=strlen(data);

for(n=0; string[n]; n++)
{

  if(n<=2)
  {

  num0[n]=string[n]-48;
  }

  if(n>3 && n<=6)
  {

  num1[n-4]=string[n]-48;
  }


  if(n>7 && n<=10)
  {

  num2[n-8]=string[n]-48;
  }

  if(n>11 && n<=14)
  {

  num3[n-12]=string[n]-48;

  }
}
octeto0=num0[0]*100+num0[1]*10+num0[2];
octeto1=num1[0]*100+num1[1]*10+num1[2];
octeto2=num2[0]*100+num2[1]*10+num2[2];
octeto3=num3[0]*100+num3[1]*10+num3[2];

data=(octeto0*16777216)+(octeto1*65536)+(octeto2*256)+(octeto3);

return data;
}

Suppose that I put these values I don’t know if this is the best way to do it but I am newbie …. But the problem is when I try to fill the html text field with the ip and mask with the values that I want. I don’t know what happens but the server gets other sbmask or something bad… I tried comment the line that change the submask :netstatic[0].snmask = (Mask_v4);And I can change the ip address without problems.

Re: changing ip coldfire TCP/IP

MCF52233 — Thu, 01 Oct 2009 13:14:24 GMT

hi,

now ur on the track ,

instead of hard coding location of array u use dat "=" as start parameter and end with "&" character.

it helps u a lot.

instead of using

<fn> int datastrtoint(char *string)

why dont u try

<fn> int in_reshost(char * host, /* IN - textual IP address or host name */
ip_addr * address, /* OUT - address if successful */
int flags) /* IN - RH_VERBOSE, RH_BLOCK */

Re: changing ip coldfire TCP/IP

faustino — Fri, 02 Oct 2009 07:16:33 GMT

sorry i dont undertand this function can you show me an example ...

1.- Does in_reshost function change the ip if I put a string char with the IP?
2.- Can I change submask and gateway with the same function?
thank you ...
best regards