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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/* tests/forward.c - test harness for getting forwarded creds */
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/*
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* Copyright (C) 2016 by the Massachusetts Institute of Technology.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* This test program overwrites the default credential cache with a forwarded
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* TGT obtained using the TGT presently in the cache. */
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#include "k5-int.h"
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static krb5_context ctx;
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static void
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check(krb5_error_code code)
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{
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const char *errmsg;
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if (code) {
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errmsg = krb5_get_error_message(ctx, code);
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fprintf(stderr, "%s\n", errmsg);
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krb5_free_error_message(ctx, errmsg);
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exit(1);
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}
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}
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int
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main()
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{
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krb5_ccache cc;
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krb5_creds mcred, tgt, *fcred;
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krb5_principal client, tgtprinc;
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krb5_flags options;
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/* Open the default ccache and get the client and TGT principal names. */
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check(krb5_init_context(&ctx));
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check(krb5_cc_default(ctx, &cc);;
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check(krb5_cc_get_principal(ctx, cc, &client));
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check(krb5_build_principal_ext(ctx, &tgtprinc, client->realm.length,
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client->realm.data, KRB5_TGS_NAME_SIZE,
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KRB5_TGS_NAME, client->realm.length,
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client->realm.data, 0));
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/* Fetch the TGT credential. */
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memset(&mcred, 0, sizeof(mcred));
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mcred.client = client;
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mcred.server = tgtprinc;
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check(krb5_cc_retrieve_cred(ctx, cc, 0, &mcred, &tgt));
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/* Get a forwarded TGT. */
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mcred.times = tgt.times;
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mcred.times.starttime = 0;
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options = (tgt.ticket_flags & KDC_TKT_COMMON_MASK) | KDC_OPT_FORWARDED;
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check(krb5_get_cred_via_tkt(ctx, &tgt, options, NULL, &mcred, &fcred));
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/* Reinitialize the default ccache with the forwarded TGT. */
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check(krb5_cc_initialize(ctx, cc, client));
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check(krb5_cc_store_cred(ctx, cc, fcred));
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krb5_free_creds(ctx, fcred);
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krb5_free_cred_contents(ctx, &tgt);
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krb5_free_principal(ctx, tgtprinc);
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krb5_free_principal(ctx, client);
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krb5_cc_close(ctx, cc);
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krb5_free_context(ctx);
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return 0;
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}
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