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h_comp.c revision 1.1 
      1 /* $NetBSD: h_comp.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 <stdio.h>
     32 #include <string.h>
     33 #include <unistd.h>
     34 
     35 #include <sys/ioctl.h>
     36 #include <sys/time.h>
     37 
     38 #include <crypto/cryptodev.h>
     39 
     40 char text[100000] = {0};
     41 
     42 int
     43 main(void)
     44 {
     45 	int fd, res;
     46 	struct session_op cs;
     47 	struct crypt_op co1, co2;
     48 	unsigned char buf1[10000], buf2[100000];
     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_GZIP_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 	res = ioctl(fd, CIOCCRYPT, &co1);
     67 	if (res < 0)
     68 		err(1, "CIOCCRYPT1");
     69 	fprintf(stderr, "len %d/%d\n", co1.len, co1.dst_len);
     70 #if 0
     71 	buf1[co1.dst_len - 8]++; /* modify CRC */
     72 #endif
     73 	write(1, buf1, co1.dst_len);
     74 	memset(&co2, 0, sizeof(co2));
     75 	co2.ses = cs.ses;
     76 	co2.op = COP_DECOMP;
     77 	co2.len = co1.dst_len;
     78 	co2.src = buf1;
     79 	co2.dst = buf2;
     80 	co2.dst_len = sizeof(buf2);
     81 	buf2[10] = 0x33;
     82 	res = ioctl(fd, CIOCCRYPT, &co2);
     83 	fprintf(stderr, "canary: %x\n", buf2[10]);
     84 	if (res < 0)
     85 		err(1, "CIOCCRYPT2");
     86 	fprintf(stderr, "len %d/%d\n", co2.len, co2.dst_len);
     87 	if (memcmp(text, buf2, co2.dst_len))
     88 		errx(1, "memcmp");
     89 	return 0;
     90 }
     91