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==uIP Ethernet Application==
 
==uIP Ethernet Application==
*The following applications are modified from the demo applications in uIP.
 
  
 
===DHCP Client===
 
===DHCP Client===
*Use project [http://chungyan5.no-ip.org/vc/?root=dhcpc_8bit dhcpc_8bit]
 
 
*Enable UDP in "uip-config.h"
 
*Enable UDP in "uip-config.h"
 
       #define UIP_CONF_UDP            1
 
       #define UIP_CONF_UDP            1
 
*Make sure your uip buffer size is large enough (DHCP messages from some servers can be more than 500 bytes). In my setting, I use 1536 in "uip-config.h"
 
*Make sure your uip buffer size is large enough (DHCP messages from some servers can be more than 500 bytes). In my setting, I use 1536 in "uip-config.h"
 
       #define UIP_CONF_BUFFER_SIZE    1536
 
       #define UIP_CONF_BUFFER_SIZE    1536
 +
*Include the dhcpc.h header file in "uip-config.h"
 +
      #include "dhcpc.h"
 +
*Change PT_WAIT_UNTIL(...) to PT_YIELD_UNTIL(...) in line 259 and 276 in "dhcpc.c" [This is a known bug in dhcpc.c]
 +
*In your main loop, initialize your MAC address and DHCP if UIP_FIXEDADDR is 0 in "uip-opt.h", for example:
 +
  int main(void)
 +
  {
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      uip_ipaddr_t ipaddr;
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      struct timer periodic_timer, arp_timer;
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      struct uip_eth_addr mac = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06};
 +
     
 +
      timer_set(&periodic_timer, CLOCK_SECOND / 2);
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      timer_set(&arp_timer, CLOCK_SECOND * 10);
 +
     
 +
      tapdev_init();
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      uip_init();
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      uip_setethaddr(mac);
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      dhcpc_init(&mac, 6);
 +
     
 +
      while(1){
 +
        //normal codes goes here
 +
      }
 +
  }
 +
*Implement dhcpc_configured(). This function will be called after DHCP client has obtained an IP address. Basically, you have to at least set your IP address, subnet mask and default gateway, for example,
 +
  void dhcpc_configured(const struct dhcpc_state *s)
 +
  {
 +
    uip_sethostaddr(s->ipaddr);
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    uip_setnetmask(s->netmask);
 +
    uip_setdraddr(s->default_router);
 +
   
 +
    //you can print your ip addr to your console/lcd to see if you get a valid ip address
 +
  }
 +
*An example of using DHCP Client in the dsPic33F development board can be found [http://chungyan5.no-ip.org/vc/tags/1.09.05/demo_posix/common/app_http.c?root=freertos_posix&view=markup here].
  
  
 
===Web Server===
 
===Web Server===
*Use project [http://chungyan5.no-ip.org/vc/?root=webserver_8bit webserver_8bit]
+
*Include the "webserver.h" header file in "uip-config.h"
 +
      #include "webserver.h"
 +
*Modify httpd-fs.h
 +
**HTTPD_FS_STATISTICS set to 0
 +
*Create a website using HTML tags with/without Javascript
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*Modify httpd-fs.c
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**changed #include "httpd-fsdata.c" to #include <httpd-fsdata.c>
 +
*Generate httpd-fsdata.c for your website by executing '''perl makefsdata''' under your web root directory.
 
====add-on====
 
====add-on====
 
*The Web Server included in uIP 1.0 has been designed to load/reload the entire page (either html/shtml files) in response to a HTTP GET command, e.g.
 
*The Web Server included in uIP 1.0 has been designed to load/reload the entire page (either html/shtml files) in response to a HTTP GET command, e.g.
Line 94: Line 132:
 
*In consideration of the above issue, a solution is proposed here, so that the webserver can handle this kind of cgi HTTP-request
 
*In consideration of the above issue, a solution is proposed here, so that the webserver can handle this kind of cgi HTTP-request
 
   GET /abc.shtml?val=500.0&button=Set HTTP/1.1
 
   GET /abc.shtml?val=500.0&button=Set HTTP/1.1
 +
*Modify httpd.c
 +
**added #include "httpd-hget.h" in line 63
 +
**added httpd_hget(s->filename) in line 224
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*Create httpd-hget.h
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**added to generate dynamic pages, e.g. /abc.shtml?button=Refresh
 +
  #ifndef __HTTPD_HGET_H__
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  #define __HTTPD_HGET_H__
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      extern void httpd_hget(char *name);
 +
  #endif
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*Create httpd-hget.c
 +
**an example is shown [http://chungyan5.no-ip.org/vc/tags/1.09.05/demo_posix/dspic/dspic33/rackmount/04_uip/uip/httpd-hget.c?root=freertos_posix&view=markup here]
  
  
 
===DNS Resolver===
 
===DNS Resolver===
*Use project [http://chungyan5.no-ip.org/vc/?root=dns_resolv_8bit dns_resolv_8bit]
+
*to be added
*The uIP DNS resolver functions are used to lookup a hostname and map it to a numerical IP address. It maintains a list of resolved hostnames that can be queried with the resolv_lookup() function. New hostnames can be resolved using the resolv_query() function.
 
*When a hostname has been resolved (or found to be non-existant), the resolver code calls a callback function called resolv_found() that must be implemented by the module that uses the resolver.
 
*Router Setting
 
**Special attention should be paid to router setting, when the DNS Server address is acquired by DHCP.
 
**The DNS Resolver module assumes that the DNS server can support DNS TYPE of ANY, MX, CNAME and A. See http://www.networksorcery.com/enp/protocol/dns.htm for definitions of these options.
 
*In case the router itself does not support these options, the router should be set to deliver a DNS Server address which support these options.
 
  
  
 
===SMTP Mail Client===
 
===SMTP Mail Client===
*Use project [http://chungyan5.no-ip.org/vc/?root=smtpc_8bit smtpc_8bit]
+
*to be added
*The SMTP client searches the ip address of the mail server by a DNS call. It then logins to the server with the email account name and address using AUTH LOGIN. If login is successful, the mail is sent to the list of recipients.
 
  
  

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