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
main(void)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