1 /* $NetBSD: h_comp.c,v 1.1 2014/01/14 17:51:39 pgoyette Exp $ */
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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.
35 #include <sys/ioctl.h>
38 #include <crypto/cryptodev.h>
40 char text
[100000] = {0};
47 struct crypt_op co1
, co2
;
48 unsigned char buf1
[10000], buf2
[100000];
50 fd
= open("/dev/crypto", O_RDWR
, 0);
53 memset(&cs
, 0, sizeof(cs
));
54 cs
.comp_alg
= CRYPTO_GZIP_COMP
;
55 res
= ioctl(fd
, CIOCGSESSION
, &cs
);
57 err(1, "CIOCGSESSION");
59 memset(&co1
, 0, sizeof(co1
));
62 co1
.len
= sizeof(text
);
65 co1
.dst_len
= sizeof(buf1
);
66 res
= ioctl(fd
, CIOCCRYPT
, &co1
);
69 fprintf(stderr
, "len %d/%d\n", co1
.len
, co1
.dst_len
);
71 buf1
[co1
.dst_len
- 8]++; /* modify CRC */
73 write(1, buf1
, co1
.dst_len
);
74 memset(&co2
, 0, sizeof(co2
));
77 co2
.len
= co1
.dst_len
;
80 co2
.dst_len
= sizeof(buf2
);
82 res
= ioctl(fd
, CIOCCRYPT
, &co2
);
83 fprintf(stderr
, "canary: %x\n", buf2
[10]);
86 fprintf(stderr
, "len %d/%d\n", co2
.len
, co2
.dst_len
);
87 if (memcmp(text
, buf2
, co2
.dst_len
))