h_comp_zlib.c revision 272343 
1/* $NetBSD: h_comp_zlib.c,v 1.1 2014/01/14 17:51:39 pgoyette Exp $ */
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <err.h>
30#include <fcntl.h>
31#include <string.h>
32#include <zlib.h>
33
34#include <sys/ioctl.h>
35#include <sys/time.h>
36
37#include <crypto/cryptodev.h>
38
39char text[10000] = {0};
40
41int
42main(void)
43{
44	int fd, res;
45	struct session_op cs;
46	struct crypt_op co1;
47	unsigned char buf1[10000], buf2[10000];
48	z_stream z;
49
50	fd = open("/dev/crypto", O_RDWR, 0);
51	if (fd < 0)
52		err(1, "open");
53	memset(&cs, 0, sizeof(cs));
54	cs.comp_alg = CRYPTO_DEFLATE_COMP;
55	res = ioctl(fd, CIOCGSESSION, &cs);
56	if (res < 0)
57		err(1, "CIOCGSESSION");
58
59	memset(&co1, 0, sizeof(co1));
60	co1.ses = cs.ses;
61	co1.op = COP_COMP;
62	co1.len = sizeof(text);
63	co1.src = text;
64	co1.dst = buf1;
65	co1.dst_len = sizeof(buf1);
66	co1.flags = COP_F_BATCH;
67	res = ioctl(fd, CIOCCRYPT, &co1);
68	if (res < 0)
69		err(1, "CIOCCRYPT");
70
71	memset(&z, 0, sizeof(z));
72	z.next_in = buf1;
73	z.avail_in = co1.dst_len;
74	z.zalloc = Z_NULL;
75	z.zfree = Z_NULL;
76	z.opaque = 0;
77	z.next_out = buf2;
78	z.avail_out = sizeof(buf2);
79	res = inflateInit2(&z, -15);
80	if (res != Z_OK)
81		errx(1, "inflateInit: %d", res);
82	do {
83		res = inflate(&z, Z_SYNC_FLUSH);
84	} while (res == Z_OK);
85	if (res != Z_STREAM_END)
86		errx(1, "inflate: %d", res);
87	if (z.total_out != sizeof(text))
88		errx(1, "decomp len %lu", z.total_out);
89	if (memcmp(buf2, text, sizeof(text)))
90		errx(1, "decomp data mismatch");
91	return 0;
92}
93