mechanism not supported error calling sasl_client_start()

[Dan White]

On 03/08/17 15:44 -0800, Ted Yu wrote:
>Hi,
>I installed cyrus-sasl-2.1.26
>
>    rc = sasl_client_new(service_name, /* The service we are using*/
>        host_name_.c_str(),
>        NULL, NULL, /* Local and remote IP address strings
>                          (NULL disables mechanisms which require this
>info)*/
>        NULL, /*connection-specific callbacks*/
>        0 /*security flags*/, &sconn_);
>    sasl_security_properties_t *props = new sasl_security_properties_t();
>    ::memset(props, 0, sizeof(sasl_security_properties_t));
>    props->max_ssf = 2;
>    sasl_setprop(sconn_, SASL_SEC_PROPS, (void *)props);
>    const char *mechusing, *mechlist = "GSSAPI";
>      currentReturnCode = sasl_client_start(sconn_, /* the same context
>from above */
>           mechlist, /* the list of mechanisms
>            from the server */
>            NULL, /* filled in if an
>            interaction is needed */
>            &out, /* filled in on success */
>            &outlen, /* filled in on success */
>            &mechusing);
>
>Return value from sasl_client_new() was SASL_OK
>
>The return value from sasl_client_start() was -4.

Use pluginviewer to verify you have the gssapi mechanism available on
the client side. You may want to review the github bug reports for 2.1.26
and GSSAPI:

https://github.com/cyrusimap/cyrus-sasl/issues

Try removing the max_ssf command above until you get past the -4 error.

-- 
Dan White