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      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 
     39 char text[10000] = {0};
     40 
     41 int
     42 main(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