sendauth.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* Copyright 2002 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* lib/krb5/krb/sendauth.c
*
* Copyright 1991 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
*/
#define NEED_SOCKETS
#include <k5-int.h>
#include <com_err.h>
#include <auth_con.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
static char *sendauth_version = "KRB5_SENDAUTH_V1.0";
/* IN */
/* OUT */
char FAR * appl_version;
{
krb5_error_code retval = 0;
int len;
krb5_ccache use_ccache = 0;
if (error)
*error = 0;
/*
* First, send over the length of the sendauth version string;
* then, we send over the sendauth version. Next, we send
* over the length of the application version strings followed
* by the string itself.
*/
return(retval);
return(retval);
/*
* Now, read back a byte: 0 means no error, 1 means bad sendauth
* version, 2 means bad application version
*/
#ifndef ECONNABORTED
#define ECONNABORTED WSAECONNABORTED
#endif
if (result == 1)
return(KRB5_SENDAUTH_BADAUTHVERS);
else if (result == 2)
return(KRB5_SENDAUTH_BADAPPLVERS);
else if (result != 0)
return(KRB5_SENDAUTH_BADRESPONSE);
/*
* We're finished with the initial negotiations; let's get and
* send over the authentication header. (The AP_REQ message)
*/
/*
* If no credentials were provided, try getting it from the
* credentials cache.
*/
/*
* See if we need to access the credentials cache
*/
if (ccache)
use_ccache = ccache;
goto error_return;
}
if (!in_creds) {
goto error_return;
if (client)
else
if (retval) {
goto error_return;
}
/* creds.times.endtime = 0; -- memset 0 takes care of this
zero means "as long as possible" */
/* creds.keyblock.enctype = 0; -- as well as this.
zero means no session enctype
preference */
}
goto error_return;
} else {
}
if (ap_req_options & AP_OPTS_USE_SUBKEY) {
/* Provide some more fodder for random number code.
This isn't strong cryptographically; the point here is
not to guarantee randomness, but to make it less likely
that multiple sessions could pick the same subkey. */
char rnd_data[1024];
krb5_data d;
(void) krb5_c_random_seed (context, &d);
}
(void) krb5_c_random_seed (context, &d);
}
}
&outbuf)) != 0)
goto error_return;
/*
* First write the length of the AP_REQ message, then write
* the message itself.
*/
if (retval)
goto error_return;
/*
* Now, read back a message. If it was a null message (the
* length was zero) then there was no error. If not, we the
* authentication was rejected, and we need to return the
* error structure.
*/
goto error_return;
if (error) {
goto error_return;
}
}
goto error_return;
}
/*
* If we asked for mutual authentication, we should now get a
* length field, followed by a AP_REP message
*/
if ((ap_req_options & AP_OPTS_MUTUAL_REQUIRED)) {
krb5_ap_rep_enc_part *repl = 0;
goto error_return;
&repl)) != 0) {
if (repl)
goto error_return;
}
/*
* If the user wants to look at the AP_REP message,
* copy it for him
*/
if (rep_result)
*rep_result = repl;
else
}
retval = 0; /* Normal return */
if (out_creds) {
}
if (!ccache && use_ccache)
return(retval);
}