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      1 /* $NetBSD: h_comp_zlib_rnd.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 <stdlib.h>
     32 #include <string.h>
     33 #include <zlib.h>
     34 
     35 #include <sys/ioctl.h>
     36 #include <sys/time.h>
     37 
     38 #include <crypto/cryptodev.h>
     39 
     40 char text[1000];
     41 
     42 int
     43 main(void)
     44 {
     45 	unsigned int i;
     46 	int fd, res;
     47 	struct session_op cs;
     48 	struct crypt_op co1;
     49 	unsigned char buf1[10000], buf2[10000];
     50 	z_stream z;
     51 
     52 	for (i = 0; i < sizeof(text)/sizeof(long); i++)
     53 		*(long *)(text + i * sizeof(long)) = random();
     54 
     55 	fd = open("/dev/crypto", O_RDWR, 0);
     56 	if (fd < 0)
     57 		err(1, "open");
     58 	memset(&cs, 0, sizeof(cs));
     59 	cs.comp_alg = CRYPTO_DEFLATE_COMP;
     60 	res = ioctl(fd, CIOCGSESSION, &cs);
     61 	if (res < 0)
     62 		err(1, "CIOCGSESSION");
     63 
     64 	memset(&co1, 0, sizeof(co1));
     65 	co1.ses = cs.ses;
     66 	co1.op = COP_COMP;
     67 	co1.len = sizeof(text);
     68 	co1.src = text;
     69 	co1.dst = buf1;
     70 	co1.dst_len = sizeof(buf1);
     71 	res = ioctl(fd, CIOCCRYPT, &co1);
     72 	if (res < 0)
     73 		err(1, "CIOCCRYPT");
     74 
     75 	memset(&z, 0, sizeof(z));
     76 	z.next_in = buf1;
     77 	z.avail_in = co1.dst_len;
     78 	z.zalloc = Z_NULL;
     79 	z.zfree = Z_NULL;
     80 	z.opaque = 0;
     81 	z.next_out = buf2;
     82 	z.avail_out = sizeof(buf2);
     83 	res = inflateInit2(&z, -15);
     84 	if (res != Z_OK)
     85 		errx(1, "inflateInit: %d", res);
     86 	do {
     87 		res = inflate(&z, Z_SYNC_FLUSH);
     88 	} while (res == Z_OK);
     89 	if (res != Z_STREAM_END)
     90 		errx(1, "inflate: %d", res);
     91 	if (z.total_out != sizeof(text))
     92 		errx(1, "decomp len %lu", z.total_out);
     93 	if (memcmp(buf2, text, sizeof(text)))
     94 		errx(1, "decomp data mismatch");
     95 	return 0;
     96 }
     97