1/*
2 * Copyright (c) 1996
3 *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD$");
35
36#include "namespace.h"
37#include <err.h>
38#include <sys/types.h>
39#include <rpc/des_crypt.h>
40#include <rpc/des.h>
41#include <string.h>
42#include <rpcsvc/crypt.h>
43#include "un-namespace.h"
44
45int
46_des_crypt_call(char *buf, int len, struct desparams *dparms)
47{
48	CLIENT *clnt;
49	desresp  *result_1;
50	desargs  des_crypt_1_arg;
51	struct netconfig *nconf;
52	void *localhandle;
53	int stat;
54
55	nconf = NULL;
56	localhandle = setnetconfig();
57	while ((nconf = getnetconfig(localhandle)) != NULL) {
58		if (nconf->nc_protofmly != NULL &&
59		     strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0)
60			break;
61	}
62	if (nconf == NULL) {
63		warnx("getnetconfig: %s", nc_sperror());
64		endnetconfig(localhandle);
65		return(DESERR_HWERROR);
66	}
67	clnt = clnt_tp_create(NULL, CRYPT_PROG, CRYPT_VERS, nconf);
68	if (clnt == (CLIENT *) NULL) {
69		endnetconfig(localhandle);
70		return(DESERR_HWERROR);
71	}
72	endnetconfig(localhandle);
73
74	des_crypt_1_arg.desbuf.desbuf_len = len;
75	des_crypt_1_arg.desbuf.desbuf_val = buf;
76	des_crypt_1_arg.des_dir = (dparms->des_dir == ENCRYPT) ? ENCRYPT_DES : DECRYPT_DES;
77	des_crypt_1_arg.des_mode = (dparms->des_mode == CBC) ? CBC_DES : ECB_DES;
78	bcopy(dparms->des_ivec, des_crypt_1_arg.des_ivec, 8);
79	bcopy(dparms->des_key, des_crypt_1_arg.des_key, 8);
80
81	result_1 = des_crypt_1(&des_crypt_1_arg, clnt);
82	if (result_1 == (desresp *) NULL) {
83		clnt_destroy(clnt);
84		return(DESERR_HWERROR);
85	}
86
87	stat = result_1->stat;
88
89	if (result_1->stat == DESERR_NONE ||
90	    result_1->stat == DESERR_NOHWDEVICE) {
91		bcopy(result_1->desbuf.desbuf_val, buf, len);
92		bcopy(result_1->des_ivec, dparms->des_ivec, 8);
93	}
94
95	clnt_freeres(clnt, (xdrproc_t)xdr_desresp, result_1);
96	clnt_destroy(clnt);
97
98	return(stat);
99}
100