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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 2011 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include "common.h"
/* Display a usage error message and exit. */
static void
usage(void)
{
fprintf(stderr, "Usage: t_export_cred [-k|-s] [-i initiatorname] "
"[-a acceptorname] targetname\n");
exit(1);
}
int
main(int argc, char *argv[])
{
OM_uint32 major, minor, flags;
gss_name_t initiator_name = GSS_C_NO_NAME, acceptor_name = GSS_C_NO_NAME;
gss_name_t target_name;
gss_cred_id_t initiator_cred, acceptor_cred, delegated_cred;
gss_ctx_id_t initiator_context = GSS_C_NO_CONTEXT;
gss_ctx_id_t acceptor_context = GSS_C_NO_CONTEXT;
gss_OID mech = GSS_C_NO_OID;
gss_OID_set mechs = GSS_C_NO_OID_SET;
char optchar;
/* Parse arguments. */
argv++;
while (*argv != NULL && **argv == '-') {
optchar = (*argv)[1];
argv++;
if (optchar == 'i') {
if (*argv == NULL)
usage();
initiator_name = import_name(*argv++);
} else if (optchar == 'a') {
if (*argv == NULL)
usage();
acceptor_name = import_name(*argv++);
} else if (optchar == 'k') {
mech = &mech_krb5;
mechs = &mechset_krb5;
} else if (optchar == 's') {
mech = &mech_spnego;
mechs = &mechset_spnego;
} else {
usage();
}
}
if (*argv == NULL || *(argv + 1) != NULL)
usage();
target_name = import_name(argv[0]);
/* Get initiator cred and export/import it. */
major = gss_acquire_cred(&minor, initiator_name, GSS_C_INDEFINITE, mechs,
GSS_C_INITIATE, &initiator_cred, NULL, NULL);
check_gsserr("gss_acquire_cred(initiator)", major, minor);
export_import_cred(&initiator_cred);
/* Get acceptor cred and export/import it. */
major = gss_acquire_cred(&minor, acceptor_name, GSS_C_INDEFINITE, mechs,
GSS_C_ACCEPT, &acceptor_cred, NULL, NULL);
check_gsserr("gss_acquire_cred(acceptor)", major, minor);
export_import_cred(&acceptor_cred);
/* Initiate and accept a security context (one-token exchange only),
* delegating credentials. */
flags = GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_CONF_FLAG |
GSS_C_INTEG_FLAG | GSS_C_DELEG_FLAG;
establish_contexts(mech, initiator_cred, acceptor_cred, target_name, flags,
&initiator_context, &acceptor_context, NULL, NULL,
&delegated_cred);
/* Import, release, export, and store delegated creds */
export_import_cred(&delegated_cred);
major = gss_store_cred(&minor, delegated_cred, GSS_C_INITIATE,
GSS_C_NULL_OID, 1, 1, NULL, NULL);
check_gsserr("gss_store_cred", major, minor);
(void)gss_release_name(&minor, &initiator_name);
(void)gss_release_name(&minor, &acceptor_name);
(void)gss_release_name(&minor, &target_name);
(void)gss_release_cred(&minor, &initiator_cred);
(void)gss_release_cred(&minor, &acceptor_cred);
(void)gss_release_cred(&minor, &delegated_cred);
(void)gss_delete_sec_context(&minor, &initiator_context, NULL);
(void)gss_delete_sec_context(&minor, &acceptor_context, NULL);
return 0;
}
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