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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"
/*
* Test program for acceptor names, intended to be run from a Python test
* script. Performs a one-token gss_init_sec_context/gss_accept_sec_context
* exchange with the default initiator name, a specified principal name as
* target name, and a specified host-based name as acceptor name (or
* GSS_C_NO_NAME if no acceptor name is given). If the exchange is successful,
* queries the context for the acceptor name and prints it. If any call is
* unsuccessful, displays an error message. Exits with status 0 if all
* operations are successful, or 1 if not.
*
* Usage: ./t_accname targetname [acceptorname]
*/
int
main(int argc, char *argv[])
{
OM_uint32 minor, major;
gss_cred_id_t acceptor_cred;
gss_name_t target_name, acceptor_name = GSS_C_NO_NAME, real_acceptor_name;
gss_buffer_desc token, tmp, namebuf;
gss_ctx_id_t initiator_context = GSS_C_NO_CONTEXT;
gss_ctx_id_t acceptor_context = GSS_C_NO_CONTEXT;
if (argc < 2 || argc > 3) {
fprintf(stderr, "Usage: %s targetname [acceptorname]\n", argv[0]);
return 1;
}
/* Import target and acceptor names. */
target_name = import_name(argv[1]);
if (argc >= 3)
acceptor_name = import_name(argv[2]);
/* Get acceptor cred. */
major = gss_acquire_cred(&minor, acceptor_name, GSS_C_INDEFINITE,
GSS_C_NO_OID_SET, GSS_C_ACCEPT,
&acceptor_cred, NULL, NULL);
check_gsserr("gss_acquire_cred", major, minor);
/* Create krb5 initiator context and get the first token. */
token.value = NULL;
token.length = 0;
major = gss_init_sec_context(&minor, GSS_C_NO_CREDENTIAL,
&initiator_context, target_name,
(gss_OID)gss_mech_krb5,
GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG,
GSS_C_INDEFINITE, GSS_C_NO_CHANNEL_BINDINGS,
GSS_C_NO_BUFFER, NULL, &token, NULL, NULL);
check_gsserr("gss_init_sec_context", major, minor);
/* Pass the token to gss_accept_sec_context. */
tmp.value = NULL;
tmp.length = 0;
major = gss_accept_sec_context(&minor, &acceptor_context, acceptor_cred,
&token, GSS_C_NO_CHANNEL_BINDINGS,
NULL, NULL, &tmp, NULL, NULL, NULL);
check_gsserr("gss_accept_sec_context", major, minor);
major = gss_inquire_context(&minor, acceptor_context, NULL,
&real_acceptor_name, NULL, NULL, NULL, NULL,
NULL);
check_gsserr("gss_inquire_context", major, minor);
namebuf.value = NULL;
namebuf.length = 0;
major = gss_display_name(&minor, real_acceptor_name, &namebuf, NULL);
check_gsserr("gss_display_name", major, minor);
printf("%.*s\n", (int)namebuf.length, (char *)namebuf.value);
(void)gss_release_name(&minor, &target_name);
(void)gss_release_name(&minor, &acceptor_name);
(void)gss_release_cred(&minor, &acceptor_cred);
(void)gss_delete_sec_context(&minor, &initiator_context, NULL);
(void)gss_delete_sec_context(&minor, &acceptor_context, NULL);
(void)gss_release_buffer(&minor, &token);
(void)gss_release_buffer(&minor, &tmp);
return 0;
}
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