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** This document is mainly useful for people doing libsasl development or users having a lot of difficulty getting libsasl to work. Testing the CMU SASL Library with the included sample applications ################################################################## The CMU SASL library comes with two small sample programs: sample-client and sample-server. Each of these programs dump base-64 SASL iterations to STDOUT, and read the next iteration from STDIN. Lines preceded by "C: " are from the client, and from "S: " are from the server. This makes it fairly straightforward to test mechanisms; simply run the sample-client on the "client" machine, and sample-server on the "server" machine. Both programs take a -m MECH command line argument; this can be used to force the mechanism used in the exchange. KERBEROS_V4 requires that the IP addresses of both client and server be set, along with the service name, and the server's fully-qualified hostname; these are done through more command line arguments. Example: Here's the client side of an exchange. The mechanism selection code chooses KERBEROS_V4; negotiation takes place, and the client is authenticated. This is being run on the machine SPOOKY.ANDREW.CMU.EDU (128.2.121.162), pretending to be talking to an "rcmd" service running on port 23 (note the semicolons in the IP address. There is a strong chance these will need to be escaped for proper interpretation by the shell): > ./sample-client -i local=128.2.121.162;23,remote=128.2.121.162;23 -s rcmd -n SPOOKY.ANDREW.CMU.EDU Waiting for mechanism list from server... S: UExBSU4gQU5PTllNT1VTIEtFUkJFUk9TX1Y0IERJR0VTVC1NRDUgQ1JBTS1NRDUgAAAAAED5EEA= Choosing best mechanism from: PLAIN ANONYMOUS KERBEROS_V4 DIGEST-MD5 CRAM-MD5 Using mechanism KERBEROS_V4 Preparing initial. Sending initial response... C: S0VSQkVST1NfVjQA Waiting for server reply... S: hVQFjA== Sending response... C: BAYCQU5EUkVXLkNNVS5FRFUAOCDnIsZLQRdjLHXvzPNgpURYVj1iMqBIcTRaMpEQ8vWeYnfB+mTCVEa2URpkVgpzS1161MAX7ERzFV/EfGKlrAhGJCdN56mQ3eL2PzJlK7Z9ctKv4gKErcmV Waiting for server reply... S: BgcvFb63CLs= Sending response... C: ohBT+Jqab9zmDzclN7GSTw== Negotiation complete > Here's the server side of the same dialog: > ./sample-server -s rcmd -i local=128.2.121.162;23,remote=128.2.121.162;23 Generating client mechanism list... Sending list of 5 mechanism(s) S: UExBSU4gQU5PTllNT1VTIEtFUkJFUk9TX1Y0IERJR0VTVC1NRDUgQ1JBTS1NRDUgAAAAAED5EEA= Waiting for client mechanism... C: S0VSQkVST1NfVjQA Sending response... S: hVQFjA== Waiting for client reply... C: BAYCQU5EUkVXLkNNVS5FRFUAOCDnIsZLQRdjLHXvzPNgpURYVj1iMqBIcTRaMpEQ8vWeYnfB+mTCVEa2URpkVgpzS1161MAX7ERzFV/EfGKlrAhGJCdN56mQ3eL2PzJlK7Z9ctKv4gKErcmV Sending response... S: BgcvFb63CLs= Waiting for client reply... C: ohBT+Jqab9zmDzclN7GSTw== Negotiation complete Username: rob Realm: ANDREW.CMU.EDU SSF: 56 > Running the Testsuite application ################################# The Testsuite application in the utils directory trys out all the functionality of libsasl against itself. When you run the application it displays some requirments for running, such as being able to read and write to the sasldb file. If this program is set up correctly and still fails we'd like to hear about it at cyrus-bugs@andrew.cmu.edu.