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/*
* Copyright (c) 2006 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of KTH nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
#ifdef HAVE_CONFIG_H
#include <config.h>
RCSID("$Id: ap-req.c 19807 2007-01-10 19:35:45Z lha $");
#endif
#include <sys/types.h>
#include <stdio.h>
#include <krb5.h>
#include <err.h>
#include <getarg.h>
#include <roken.h>
static int verify_pac = 0;
static int version_flag = 0;
static int help_flag = 0;
static struct getargs args[] = {
{"verify-pac",0, arg_flag, &verify_pac,
"verify the PAC", NULL },
{"version", 0, arg_flag, &version_flag,
"print version", NULL },
{"help", 0, arg_flag, &help_flag,
NULL, NULL }
};
static void
usage (int ret)
{
arg_printusage (args, sizeof(args)/sizeof(*args), NULL, "...");
exit (ret);
}
static void
test_ap(krb5_context context,
krb5_principal sprincipal,
krb5_keytab keytab,
krb5_ccache ccache,
const krb5_flags client_flags)
{
krb5_error_code ret;
krb5_auth_context client_ac = NULL, server_ac = NULL;
krb5_data data;
krb5_flags server_flags;
krb5_ticket *ticket = NULL;
int32_t server_seq, client_seq;
ret = krb5_mk_req_exact(context,
&client_ac,
client_flags,
sprincipal,
NULL,
ccache,
&data);
if (ret)
krb5_err(context, 1, ret, "krb5_mk_req_exact");
ret = krb5_rd_req(context,
&server_ac,
&data,
sprincipal,
keytab,
&server_flags,
&ticket);
if (ret)
krb5_err(context, 1, ret, "krb5_rd_req");
if (server_flags & AP_OPTS_MUTUAL_REQUIRED) {
krb5_ap_rep_enc_part *repl;
krb5_data_free(&data);
if ((client_flags & AP_OPTS_MUTUAL_REQUIRED) == 0)
krb5_errx(context, 1, "client flag missing mutual req");
ret = krb5_mk_rep (context, server_ac, &data);
if (ret)
krb5_err(context, 1, ret, "krb5_mk_rep");
ret = krb5_rd_rep (context,
client_ac,
&data,
&repl);
if (ret)
krb5_err(context, 1, ret, "krb5_rd_rep");
krb5_free_ap_rep_enc_part (context, repl);
} else {
if (client_flags & AP_OPTS_MUTUAL_REQUIRED)
krb5_errx(context, 1, "server flag missing mutual req");
}
krb5_auth_getremoteseqnumber(context, server_ac, &server_seq);
krb5_auth_getremoteseqnumber(context, client_ac, &client_seq);
if (server_seq != client_seq)
krb5_errx(context, 1, "seq num differ");
krb5_auth_con_getlocalseqnumber(context, server_ac, &server_seq);
krb5_auth_con_getlocalseqnumber(context, client_ac, &client_seq);
if (server_seq != client_seq)
krb5_errx(context, 1, "seq num differ");
krb5_data_free(&data);
krb5_auth_con_free(context, client_ac);
krb5_auth_con_free(context, server_ac);
if (verify_pac) {
krb5_pac pac;
ret = krb5_ticket_get_authorization_data_type(context,
ticket,
KRB5_AUTHDATA_WIN2K_PAC,
&data);
if (ret)
krb5_err(context, 1, ret, "get pac");
ret = krb5_pac_parse(context, data.data, data.length, &pac);
if (ret)
krb5_err(context, 1, ret, "pac parse");
krb5_pac_free(context, pac);
}
krb5_free_ticket(context, ticket);
}
int
main(int argc, char **argv)
{
krb5_context context;
krb5_error_code ret;
int optidx = 0;
const char *principal, *keytab, *ccache;
krb5_ccache id;
krb5_keytab kt;
krb5_principal sprincipal;
setprogname(argv[0]);
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
usage(1);
if (help_flag)
usage (0);
if(version_flag){
print_version(NULL);
exit(0);
}
argc -= optidx;
argv += optidx;
if (argc < 3)
usage(1);
principal = argv[0];
keytab = argv[1];
ccache = argv[2];
ret = krb5_init_context(&context);
if (ret)
errx (1, "krb5_init_context failed: %d", ret);
ret = krb5_cc_resolve(context, ccache, &id);
if (ret)
krb5_err(context, 1, ret, "krb5_cc_resolve");
ret = krb5_parse_name(context, principal, &sprincipal);
if (ret)
krb5_err(context, 1, ret, "krb5_parse_name");
ret = krb5_kt_resolve(context, keytab, &kt);
if (ret)
krb5_err(context, 1, ret, "krb5_kt_resolve");
test_ap(context, sprincipal, kt, id, 0);
test_ap(context, sprincipal, kt, id, AP_OPTS_MUTUAL_REQUIRED);
krb5_cc_close(context, id);
krb5_kt_close(context, kt);
krb5_free_principal(context, sprincipal);
krb5_free_context(context);
return ret;
}
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