Network Samples Overview
Contents
1. of the form This is similar to form1 c but with the addition of authentication Samples Tcpip Http http_upld c Keywords HTTP server CGI upload Demonstrates how to upload a file to the HTTP server through a CGI function This program simply displays the uploaded information on the stdio window Samples Tcpip Http httpupld2 c Keywords HTTP server CGI upload Demonstrate the HTTP file upload facility This is the same demo as httpupld c except that it generates the HTML response in the CGI function itself instead of using http_switchCGI to respond with a pre configured HTML file Samples Tcpip Http multiweb c Keywords HTTP server This sample shows a web server running on multiple network interfaces simultaneously such as Ethernet and PPP Samples Tcpip Http post c Keywords HTTP server CGI form post Maintain two string fields posted from a form Includes logic to decode the form URL sent back on submit Samples Tcpip Http post2 c Keywords HTTP server CGI form post SSPEC Extends the http post c example to also control LEDs on the prototype board Once the user registers themselves a cookie is sent to the browser Whenever the user changes an LED a user specific log entry is created This tracks records the user s actions based on their cookie Uses the SSPEC_RESOURCETABLE to statically define the web site s contents Samples Tcpip Http post2a c Keywords HTTP server CGI form post ZSERVER This is an alte2. ssl https ssl_form c Keywords SSL TLS HTTP HTTPS Forms SSPEC This sample is a modification of form1 c in the HTTP samples folder to do HTTP authentication over HTTPS secured by SSL Demonstrates dynamically building adding pages to the HTTP server These pages have forms with two dependent variables Software validates this and rejects incorrect values See the RabbitWeb software module for a better way to solve this problem Network Samples Overview Page 16 of 18 Samples Tcpip ssl https ssl_ssi c Keywords SSL TLS HTTP HTTPS dynamic web page SSI This sample is a modification of ssi c in the HTTP samples folder to do HTTP authentication over HTTPS secured by SSL Uses SSI server side includes to display the state of four virtual lights After the user hits a web page button the form submits to update the LED states This program simulates the LED s See your device s user manual for a program that can change actual LED s on your device Samples Tcpip ssl https ssl_static c Keywords SSL TLS HTTP HTTPS static web page This sample is a modification of static c in the HTTP samples folder to do HTTP authentication over HTTPS secured by SSL A very basic web server example with static pages This program completely initializes the library out putting a basic static web page Contains lots of comments explaining the defines and settings Samples Tcpip ssl https ssl_zimport c Keywords SSL TLS HTTP HTTPS
3. that allows those servers to manage files in xmem root memory or the FAT filesystem This sample shows a lot of the run time capabilities of the ZServer library Samples zconsole tcpipconsole c Keywords ZConsole TCP FS2 HTTP This program can be used for boards that have a second flash This sample program demonstrates many of the features of ZCONSOLE LIB with FS2 LIB Among the features this sample program supports is network configuration uploading web pages changing variables for use with web pages sending mail and access to the console through a telnet client Samples zconsole userblock_tcpipconsole c Keywords ZConsole TCP user block HTTP This example of a ZCONSOLE LIB program demonstrates how the console configuration information can be stored in the user block This sample also demonstrates the use of the extended TCP IP configuration options including setting multiple name servers enabling DHCP and ping configuration and handling multiple interfaces Network Samples Overview Page 8 of 18 Generic UDP Samples This group of programs contains UDP samples that work on any Ethernet board Samples Tcpip multicast c Keywords UDP multicast IGMP This sample program sends and receives heartbeat packets via multicast UDP sockets Multiple sockets can be configured to operate at once IGMP can be enabled so that the multicast datagrams can be routed across subnets Multicasting is useful when information needs to be transm
4. Network Samples Overview NOTE There are more networking sample programs provided that are specific to each model of Rabbit device These model specific samples are not detailed in this document please see your product s User s Manual for information on these samples This document contains a summary of some of the TCP UDP IP sample programs provided for the Rabbit It can help you find a sample that might be a close match to an application you want to develop Each sample program is briefly described along with keywords for the topic of each program Almost all of the samples listed in this file are generic that is they should run on Ethernet Wi Fi or PPP connections Some of the samples listed in this document call the TCP functions directly and some use application libraries for protocols such as FTP and HTTP There are also samples for the uC OS II multi tasking environment ported by Rabbit Semiconductor The sample programs are divided into several broad categories Generic TCP Generic UDP Generic Internet ICMP Wi Fi Point to Point Protocol PPP RabbitWeb SNMP uC OS II If you know a protocol you can just search this text file Each entry starts with the filename of the sample program followed on the next line by keywords relevant to the sample After that is a summary of the program highlighting its functions and or features Generic TCP Samples This group of programs contains TCP samples that work on any Eth
5. This demonstrates use of a UDP data handler which is the fastest way to implement UDP based request response servers Network Samples Overview Page 9 of 18 Samples Tcpip Udp udp_srv c Keywords UDP receive Uses udp_recv to collect heartbeat datagrams Since it doesn t use the extended UDP receive function the first client to send a packet sets which host subsequent datagrams will be received from Generic Internet ICMP Samples This group of programs include examples of printing the Ethernet MAC address starting up a DHCP client resolving a domain name using the DNS library and the ICMP ping feature They don t use application level protocols such as HTTP or FTP Samples Tcpip dhcp c Keywords DHCP debugging Configures the network interface automatically via DHCP Note that you must have a DHCP server available for this sample to work This sample has a number of debugging and diagnostic features as well which makes it a very good test program For example you can change the network configuration ping other devices access a web server and display configuration information Samples Tcpip dhcp_bootfile c Keywords DHCP TFTP Configures the network interface automatically via DHCP and also downloads a bootfile via TFTP if available This bootfile may be specified by the DHCP server Samples Tcpip md5_test c Keywords MD5 Simple demonstration of MD5 hashing library MD5 takes any amount of data and produces a 16
6. ased on a humidity monitor It demonstrates some simple web variable registration along with the authentication features Samples Tcpip rabbitweb selection c Keywords HTTP RabbitWeb Demonstrates the use of the selection variables feature in the RabbitWeb HTTP enhancements Selection variables allow for easy implementation of pull down menus in web pages Network Samples Overview Page 14 of 18 Samples Tcpip rabbitweb structures c Keywords HTTP RabbitWeb Shows the use of structures in the RabbitWeb HTTP enhancements This sample shows how to register structure variables for use in your web pages as well as how to use them within your web pages Samples Tcpip rabbitweb updating c Keywords HTTP RabbitWeb Demonstrates the use of the updating feature in the RabbitWeb HTTP enhancements This feature allows a web page to behave differently based on whether it is being loaded as a result of a user update or not For example this program redirects the web browser to a success page after the user has updated information in the web interface Samples Tcpip rabbitweb web c Keywords HTTP RabbitWeb Demonstrates the basic use of the web registration statement in the RabbitWeb HTTP enhancements This statement registers global variables in the C program with the web server such that ZHTML scripting tags can be used to access them Samples Tcpip rabbitweb web_error c Keywords HTTP RabbitWeb Demonstrates the use of the WEB_ERROR feat
7. ates how to scan Wi Fi channels for SSID s using the ioctl WIFL_SCAN function call It also allows the user to choose an SSID from the scan list with which to associate Once association has completed then another device can ping the Wi Fi device assuming that the other network parameters have been correctly configured Network Samples Overview Page 12 of 18 Samples WiFi Regulatory region_compiletime c Keywords Wi Fi configuration regulatory This program demonstrates how you can setup your Wi Fi device at compile time to run in a given region to meet power and channel requirements Samples WiFi Regulatory region_multi_domain c Keywords Wi Fi configuration regulatory 802 11d This program demonstrates how the multi domain option 802 11d can be used for configuring your device to meet regional regulations The demo also includes doing pings which will indicate that the Wi Fi device has successfully received country information from your access point Samples WiFi Regulatory region_runtime_ping c Keywords Wi Fi configuration regulatory This program demonstrates how the region setting can be set at runtime for configuring the Wi Fi device to meet regional regulations It also shows how you can save and retrieve the region setting from non volatile memory Point to Point Protocol PPP Samples These applications demonstrate PPP and PPP over Ethernet features Note that PPP is a separate purchasable module Samples Ppp pppoe_t
8. byte hash value of it Samples Tcpip netrand c Keywords random number generator Demonstrates how to use the arrival of packets to add randomness to the entropy table for a random number generator This can improve the randomness of the random number generator Samples Tcpip virtualeth c Keywords virtual Ethernet Demonstrates the use of virtual Ethernet interfaces These are multiple logical interfaces on a single physical Ethernet interface This could be used to for instance replace a number of network devices with a single network device The advantage of this method is that the system that communicates with these devices would not need to have its configuration or code changed Network Samples Overview Page 10 of 18 Samples Tcpip bsd bsd c Keywords getpeername sethostname setdomainname getsockname The Rabbit TCP stack does not use the UNIX sockets API However it does support some of the naming function calls This program opens a TCP port and provides information about which hosts connect to it Samples Tcpip DNS dns c Keywords DNS resolve Demonstration of how to look up an IP address through a DNS server This sample uses the blocking resolve function Samples Tcpip DNS dns2 c Keywords DNS resolve Manually goes through of process of resolving a network name into an IP address Uses resolve_name_check for non blocking operation Uses MY_DOMAIN for the default domain for not fully qualified domain
9. c Keywords TCP HTTP server This program demonstrates building a state machine based Internet server The example is a simple web server it doesn t use HTTP LIB Study the usage of sock_dataready and sock_fastwrite here when implementing your own server Samples Tcpip tcp_time c Keywords TCP UDP time RFC868 Demonstrate how to talk to one or more Time Protocol servers see RFC868 at http www faqs org rfcs rfc868 html Code includes both client and server Permits Rabbit to get a reliable wall clock time from the network Uses TCP UDP to connect to a sequence of Time servers The list of servers is specified in an initialized array You might like to use this as a basis for adding a reliable wall clock time Note that UDP is used to query the servers but the target allows both TCP and UDP queries to its server sockets This sample also demonstrates the extended UDP functions and waiting for DNS name to IP resolving some of the finer details or DCRTCP Network Samples Overview Page 2 of 18 Samples Tcpip tcp_timemulti c Keywords TCP UDP time RFC868 This demo is same as tcp_time c except that multiple interfaces may be specified Demonstrate how to talk to one or more Time Protocol servers see RFC868 at http www faqs org rfcs rfc868 html Code includes both client and server Permits Rabbit to get a reliable wall clock time from the network Uses TCP UDP to connect to a sequence of Time servers The list of s
10. eername The audit log is a circular queue Samples Tcpip Http ssi2_fat c Keywords HTTP server dynamic web page SSI peer name FAT This is the same as ssi2 c except that the FAT filesystem is used to contain the web pages and images Samples Tcpip Http static c Keywords HTTP server static web page A very basic web server example with static pages This program completely initializes the library outputting a basic static web page Contains lots of comments explaining the defines and settings Samples Tcpip Http static2 c Keywords HTTP server static web page xmemory file FTP server Basic web server example that serves its index html page from xmemory It can be uploaded with FTP Samples Tcpip Http upld_fat c Keywords HTTP server FAT upload Demonstrate the HTTP file upload facility using the default handlers This sample uses the FAT filesystem so that there is somewhere we can save the uploaded file Samples Tcpip Http zimport c Keywords HTTP server zimport This program uses the ZIMPORT LIB library to compress web pages that are served by the HTTP server It demonstrates a couple of different ways in which compressed files can be used with the HTTP server Network Samples Overview Page 6 of 18 Samples Tcpip Pop parse_extra c Keywords POP client read E mail Reads and downloads E mail from a POP3 server Defines POP_PARSE_EXTRA to displays messages in a nice format separating header fields from the me
11. er library with the FS2 filesystem Note that this sample will not work with Rabbit 4000 series modules see ftp_fat c for a supported sample Samples Tcpip Ftp ftp_server c Keywords FTP server sspec Demonstrates the Rabbit FTP server library Two files are given to user anonymous and three files for user foo who can see the first two files but not the other way around One file is created from xstring text Uses sspec_addxmenpfile to add compiled in files and sauth_adduser to create authorized users joined together with sspec_setuser Network Samples Overview Page 3 of 18 Samples Tcpip Ftp ftp_srv2 c Keywords FTP server FS2 sspec Demonstration of a simple FTP server using the FTP library This extends the ftp_server c example to demonstrate more advanced use of the FTP server via use of customized handler functions This sample uses the FS2 filesystem which is not supported with Rabbit 4000 series devices see ftp_fat c for a supported sample Samples Tcpip Http authentication c Keywords HTTP authentication This sample shows how to use HTTP authentication both basic mode and digest mode with the HTTP web server library Authentication allows restricting access to content based on username password credentials Samples Tcpip Http cgi c Keywords HTTP CGI Demonstrates a CGI function with the HTTP server library HTTPSPEC_FUNCTION means a function will be creating the whole page dynamically This progra
12. ernet or Wi Fi board They can be modified to use PPP instead These samples are generally the higher protocols such as HTTP telnet and SMTP Samples Tcpip active c Keywords TCP http Retrieves a web page from an HTTP server All addresses are compiled in Demonstrates using sock_established and sock_bytesready to make sure the socket is connected Network Samples Overview Page 1 of 18 Samples Tcpip echo c Keywords TCP listen This program demonstrates the tep_listen call A basic server that when a client connects echoes back to them any data that they send Data also displayed on Stdout Can be configured to listen on different TCP ports Samples Tcpip multi_echo c Keywords TCP listen Like echo c this sample shows how to construct an echo server that simply sends back any data that it receives This sample however also shows how to have multiple echo servers operating on multiple TCP ports and even on multiple network interfaces e g both Ethernet and PPP Samples Tcpip nist_time c Keywords TCP daytime RFC867 RFC868 Accesses the current time from a well known daytime server Decodes the time and updates the Rabbit s RTC with the time Samples Tcpip serialexa c Keywords TCP telnet serial This program directs all of the data from a serial port to a TCP port and vice versa Demonstrates buffering and timeouts Can handle multiple connections through a state machine it uses Samples Tcpip state
13. erver library These extensions ease the chore of creating a web interface for your device with complex error checking error reporting and error correction It is particularly useful in creating configuration interfaces or monitoring interfaces The RabbitWeb functionality is sold as a separate software module and is needed to run these samples Samples Tcpip rabbitweb arrays c Keywords HTTP RabbitWeb Demonstrates the use of arrays in the RabbitWeb HTTP enhancements This sample shows how to register array variables for use in your web pages as well as how to use them within your web pages Samples Tcpip rabbitweb auth c Keywords HTTP RabbitWeb Demonstrates the use of authentication features for variables in the RabbitWeb HTTP enhancements These authentication features allow you to restrict which users can update which variables Samples Tcpip rabbitweb ethernet_to_serial c Keywords HTTP RabbitWeb Uses the RabbitWeb HTTP enhancements to configure a simple Ethernet to serial converter Each serial port can be associated with a specific TCP port The Rabbit will listen on each of these TCP ports for a connection which will then be associated with a specific serial port Data will then be shuttled between the serial and Ethernet connections Note that this sample can also be used for Wi Fi interfaces to make a W1 Fi to serial converter Samples Tcpip rabbitweb humidity c Keywords HTTP RabbitWeb This is a simple RabbitWeb sample b
14. erver running This program can be easily modified to use actual LEDs on a protoboard rather than stdio messages Network Samples Overview Page 18 of 18
15. ervers is specified in an initialized array You might like to use this as a basis for adding a reliable wall clock time Note that UDP is used to query the servers but the target allows both TCP and UDP queries to its server sockets This sample also demonstrates the extended UDP functions and waiting for DNS name to IP resolving some of the finer details or DCRTCP Samples Tcpip Bsd bsd c Keywords resolve TCP connecting name service domain name Opens a port and waits for connections Demonstrates some of the informational routines in the TCP stack including set gethostname set getdomainname getsockname and getpeername Also how to format for printing the IP address Samples Tcpip Ftp ftp_client c Keywords FTP client Demonstration of the use of the ftp_client library to download and upload files Uses both standard mode and data handler mode Optionally also includes FTP server library making it do the same things as the FTP_SERVER C sample program Samples Tcpip Ftp ftp_fat c Keywords FTP server FAT Demonstration of a simple FTP server using the ftp library that allows file uploads and deletion This sample uses the FAT library for storage which is a separate software module that can be purchased from our website Samples Tcpip Ftp ftp_fs2 c Keywords FTP server FS2 Demonstration of a simple FTP server using the ftp library that allows file uploads and deletion This sample shows how to use the FTP serv
16. est c Keywords PPP PPPoE PAP DHCP LCP dynamic IP ISP ximport Connects using Point to point over Ethernet protocol on a serial port Rabbit will obtain its IP address from the server Requires setting the PAP username and password Samples Ppp ppp_answer c Keywords PPP dynamic IP LCP PAP AT commands Waits for a phone call and explicitly answers it then authenticates to the caller i e the ISP calls the Rabbit great for remote sensor stations It obtains an IP address from the caller great for remote sensor stations While connected the web server is available Loops around to wait for another call Samples Ppp modem_test c Keywords PPP dynamic IP SMTP PAP Dials an ISP and authenticates Once connected an E mail is sent to the defined SMTP server The From To and Body portions are hard coded compiled in Then it hangs up This test is repeated three times Samples Ppp modem_server c Keywords PPP LCP PAP web server Dials an ISP and authenticates to it The Rabbit obtains an IP address While connected the web server is available Network Samples Overview Page 13 of 18 Samples zconsole pppconsole c Keywords ZConsole PPP LCP PAP web server This sample program demonstrates the PPP configuration commands of ZCONSOLE LIB This sample also uses the user block for storing configuration information RabbitWeb Samples These programs all make use of the RabbitWeb extensions for the HTTP s
17. first part which you should have run already is FAT_SETUP C This sample sets up a web server which accesses the files which were copied to the FAT filesystem by the previous sample Network Samples Overview Page 7 of 18 Samples Tcpip zserver fat_serve2 c Keywords ZServer FAT HTTP Sample program to demonstrate use of ZSERVER LIB and FAT filesystem functionality This is the 2nd of a 2 part sample The first part which you should have run already is FAT_SETUP C This sample sets up a web server which accesses the files which were copied to the FAT filesystem by the previous sample It is similar to FAT_SERVE C except that access permissions have been added Samples Tcpip zserver fat_setup c Keywords ZServer FAT HTTP Sample program to demonstrate use of ZSERVER LIB and FAT filesystem functionality This is the first of a 2 part sample The other part run next is FAT_SERVE C or you can run FAT_SERVE2 C which adds access control or you can run samples tcpip http ssi2_fat c which adds FAT access to the ssi2 c sample This sample copies some ximported files into the FAT filesystem You should make sure that the FAT filesystem is already formatted see the FAT samples for how to do this Samples Tcpip zserver filesystem c Keywords ZServer FAT HTTP FTP This program demonstrates how to use the features of the ZServer lib library This library is an abstraction layer for TCP IP servers in particular the HTTP and FTP servers
18. itted to a group of other devices All of these devices can be listening on a single multicast group Samples Tcpip sntp_time c Keywords UDP time RFC2030 Demonstrate how to talk to one or more SNTP servers see RFC2030 at http www faqs org rfcs rfc2030 html in order for the Rabbit to get a reliable wall clock time from the network This sample based on tcp_time c except that we use the more modern and well supported SNTP protocol The results are much more accurate typically within a few 10 s of ms Samples Tcpip Tftp tftp c Keywords TFTP server Trivial FTP Implements a TFTP server that can send one file and receive into another area The file system is not used here Eliminates all TCP buffers to reduce RAM footprint Although the code stores the file in a fixed sized block of root memory commented code shows how to store it in xmemory Samples Tcpip Tftp tftpclnt c Keywords TFTP client Trivial FTP Uses TFTP to download one file from the server then upload the same file The file is stored into xmemory Requires a remote host to act as the TFTP server Samples Tcpip Udp udp_cli c Keywords UDP send Uses udp_send to transmit a heart beat datagram once a second Can be sent to a specific host or broadcast to the whole local network Samples Tcpip Udp udp_echo_dh c Keywords UDP data handler A UDP example that receives packets from any host on UDP port 7 then echoes the received packet back to the sender
19. m outputs a simple counter incremented each time the CGI page is accessed The function http_date_str is used in the header and cgi_sendstring sends the whole response to the browser The counter is not referenced using SSI Samples Tcpip Http cgi_concurrent c Keywords HTTP CGI This program demonstrates some more complex CGI programming In particular it demonstrates how to use the user data area within each HTTP state structure as well as how to share access to a resource These techniques allow for multiple concurrent CGI processes Samples Tcpip Http flashlog c Keywords HTTP Forms SSPEC CGI Flash memory The program logs users that request a controller s page The log can be viewed online Uses CGI pages to make entries clear and display the access log A form to alter the date uses sspec_addform to construct it dynamically Form inputs are programmed with a maximum width and a specific valid numeric range for each field Samples Tcpip Http forml c Keywords HTTP Forms SSPEC Demonstrates dynamically building adding pages to the HTTP server These pages have forms with two dependent variables Software validates this and rejects incorrect values See the RabbitWeb software module for a better way to solve this problem Network Samples Overview Page 4 of 18 Samples Tcpip Http form2 c Keywords HTTP Forms SSPEC authentication An example of a simple HTTP form generation and parsing program with password protection
20. names This function looks up multiple host names simultaneously It is organized around a state machine with separate state information maintained for each request Samples Tcpip display_mac c Keywords MAC Ethernet Displays the board s Ethernet MAC Media Access Connection station address which is unique to the board Uses a packet driver function to return the MAC Rabbit uses a range of addresses resellers might want to change it to a value inside their own range Not the same as the IP which can be bound to different network hardware addresses The program then loops calling tep_tickQ so you can ping it from another computer Samples Tcpip ping c Keywords ICMP ping resolve Uses compiled in addresses for the host and the target computer to send an ICMP ping request to Does this once a second using _ ping to handle the ICMP transmission Samples Tcpip icmp pingme c Samples Tcpip icmp pingyou c Keywords ICMP ping resolve The program pingyou c will send out a series of ICMP ping requests The program pingme c just sets up the TCP stack and then calls tep_tickQ which gives time to the TCP stack to handle the ping requests Network Samples Overview Page 11 of 18 Wi Fi Samples The programs in this section have been designed for Rabbit devices with an integrated Wi Fi networking interface The Dynamic C TCP IP stack works unchanged for Wi Fi devices but Wi Fi does have some additional configuration compared to E
21. rnate version of http post2 c that uses the ZSERVER LIB functionality to build the server table Comparison with post2 c shows how a program can be converted from using SSPEC_RESOURCETABLE to ZSERVER LIB functionality This uses the http post c style form submission and the ssi c style dynamic pages to build a fully functional and audited controller At the user s first access the page they enter their name into a form which is then stored in a HTTP cookie This is used to later build an audit trail of what changes each user makes Network Samples Overview Page 5 of 18 Samples Tcpip Http refresh c Keywords HTTP server SSI variable auto refresh Sets up JavaScript to keep on refreshing a web page The page has an SSI variable that increments on each refresh Refresh done with lt BODY onLoad window setTimeout location href index shtml 1000 gt Samples Tcpip Http ssi c Keywords HTTP server dynamic web page SSI Uses SSI server side includes to display the state of four virtual lights After the user hits a web page button the form submits to update the LED states This program simulates the LED s See your device s user manual for a program that can change actual LED s on your device Samples Tcpip Http ssi2 c Keywords HTTP server dynamic web page SSI peer name The same lights and buttons from http ssi c with an audit log of who made what changes encoded as a hash of the remote user s IP address using getp
22. ssage body Samples Tcpip Pop pop c Keywords POP client read E mail Reads and downloads E mail from a POP3 server Displays messages Samples Tcpip Smtp smtp c Keywords send E mail SMTP Sends an E mail using a root memory string Also supports SMTP authentication Samples Tcpip Smtp smtp_dh c Keywords send E mail SMTP A small program that uses the SMTP library to send an e mail This makes use of the smtp_data_handler function to generate message data on the fly Samples Tcpip Smtp smtpxmem c Keywords send E mail SMTP Sends an E mail taking the message body from xmemory Also supports SMTP authentication Samples Tcpip Telnet rxsample c Keywords telnet server serial Starts up a listen on TCP port 23 When a connection is established all writes from the remote host are sent to Stdout displayed in the Dynamic C IDE This sample doesn t provide a way to send data to the remote host Samples Tcpip Telnet vserial c Keywords telnet server virtual serial driver Uses VSERIAL LIB to create a bidirectional stream between a telnet port and a serial port on the Rabbit It extends the application TcpIp telnet rxsample c from just output to a serial port to bidirectional communication Connection will be re established after it s closed Samples Tcpip zserver fat_serve c Keywords ZServer FAT HTTP Sample program to demonstrate use of ZSERVER LIB and FAT filesystem functionality This is the 2nd of a 2 part sample The
23. thernet Note that almost all of the other samples in this document will also work for Wi Fi devices Samples WiFi WiFiDHCPorStatic c Keywords Wi Fi DHCP configuration This sample program demonstrates the runtime selection of a static IP configuration or DHCP Please see the DHCP C for a larger example of using DHCP with your application Samples WiFi WiFiMultipleAPs c Keywords Wi Fi configuration This code demostrates changing AP s using WEP keys It associates the module with the first AP AP_O defined below with WEP key KEYO defined below After associating it waits for a predefined time period and then pings the Ethernet address of the AP AP_ADDRESS_0 Next it associates with the second AP and pings its Ethernet address AP_1 KEY1 AP_ADDRESS_1 Then back to the first AP etc Samples WiFi WiFiPingYou c Keywords Wi Fi ping ad hoc This sample program will send out a series of pings to another computer on the network This is similar to the samples tcpip icmp pingyou c sample except it uses an ad hoc Wi Fi network Samples WiFi WiFiScan c Keywords Wi Fi scan This code demostrates how to scan Wi Fi channels for SSID s using the ioctl WIFI_SCAN function call ioctl WIFI_SCAN takes a while to complete so it calls a callback function when it is done The callback function is specified using an ioctl WIFI_SCANCB function call Samples WiFi WiFiScanAssociate c Keywords Wi Fi scan configuration This code demostr
24. upport for HTTPS which is HTTP over SSLv3 and TLSv1 TLS is the successor to SSL Essentially this means that the software provides for a secure web site where all communication between the web browser and web server is encrypted To use these samples you will first need to create a certificate for your web server See the SSL module documentation as well as the SSL certificate generator utility in Utilities SSL_Utilities certificate exe Samples Tcpip ssl https ssl_authentication c Keywords SSL TLS HTTP HTTPS authentication This sample is a modification of authentication c in the HTTP samples folder to do HTTP authentication over HTTPS secured by SSL This sample shows how to use HTTP authentication both basic mode and digest mode with the HTTP web server library Authentication allows restricting access to content based on username password credentials Samples Tcpip ssl https ssl_cgi c Keywords SSL TLS HTTP HTTPS CGI This sample is a modification of cgi c in the HTTP samples folder to do HTTP authentication over HTTPS secured by SSL Demonstrates a CGI function with the HTTP server library HTTPSPEC_FUNCTION means a function will be creating the whole page dynamically This program outputs a simple counter incremented each time the CGI page is accessed The function http_date_str is used in the header and cgi_sendstring sends the whole response to the browser The counter is not referenced using SSI Samples Tcpip
25. ure along with displaying these errors in web pages in the RabbitWeb HTTP enhancements WEB_ERROR can be used to display an error message specific to the error in the user input Samples Tcpip rabbitweb web_update c Keywords HTTP RabbitWeb Demonstrates the use of the web_update feature in the RabbitWeb HTTP enhancements which allows the program to be notified when certain variables have acquired new values SNMP Samples This group of samples requires the SNMP Simple Network Management Protocol module which is available for purchase from Rabbit The SNMP module implements SNMP version 1 and is used to manage and monitor network devices SNMP is often used for network routers switches and printers The SNMP module provides API level access to building a MIB Management Information Base Samples Tcpip snmp mibtest c Keywords SNMP MIB This demo shows only the MIB Management Information Base part of the SNMP suite It allows you to interactively add and delte objects and examine the MIB tree Network Samples Overview Page 15 of 18 Samples Tcpip snmp snmp1 c Keywords SNMP MIB This sample demonstrates how to use the SNMP library It defines a number of read only and read write managed variables which can be browsed and manipulated from an SNMP browser It also demonstrates the use of SNMP traps SSL TLS Samples These samples show how to use the Rabbit SSL TLS module which is sold separately The SSL module provides s
26. zimport This sample is a modification of zimport c in the HTTP samples folder to do HTTP authentication over HTTPS secured by SSL This program uses the ZIMPORT LIB library to compress web pages that are served by the HTTP server It demonstrates a couple of different ways in which compressed files can be used with the HTTP server uC OS Il Samples This group of programs are uC OS II samples Be aware that a 2K byte stack is required for the single thread that makes calls to the network libraries Samples Tcpip Ucos ucos2 c Keywords TCP uCOS telnet serial A sample data gathering application that combines a task reading from the serial port with another task to report this data to the user over the network with associated local messaging and processing Using uC OS tasks creates a reader and a writer task One side controls a serial port and the other works with a TCP socket Data is forwarded and read from the other side A semaphore regulates access to shared data i e the buffers between the two tasks Currently at most one task can call any socket functions and that task s stack must be at least 2K in size Network Samples Overview Page 17 of 18 Samples UCos II ucostcpip c Keywords TCP uCOS HTTP Example of using TCP IP and uC OS together In this example uC OS is monitoring the network link and reflecting the link light on the LEDs on the development board At the same time this program has a ECHO server and HTTP s
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