1 /* $FreeBSD: src/sys/dev/rndtest/rndtest.h,v 1.1.4.1 2003/06/04 17:10:30 sam Exp $ */
2 /* $DragonFly: src/sys/dev/crypto/rndtest/rndtest.h,v 1.2 2003/06/17 04:28:29 dillon Exp $ */
6 * Copyright (c) 2002 Jason L. Wright (jason@thought.net)
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by Jason L. Wright
20 * 4. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
37 /* Some of the tests depend on these values */
38 #define RNDTEST_NBYTES 2500
39 #define RNDTEST_NBITS (8 * RNDTEST_NBYTES)
41 struct rndtest_state {
42 device_t rs_parent; /* associated device */
43 u_int8_t *rs_end, *rs_begin, *rs_current;
45 int rs_collect; /* collect and test data */
46 int rs_discard; /* discard/accept random data */
47 u_int8_t rs_buf[RNDTEST_NBYTES];
50 struct rndtest_stats {
51 u_int32_t rst_discard; /* number of bytes discarded */
52 u_int32_t rst_tests; /* number of test runs */
53 u_int32_t rst_monobit; /* monobit test failures */
54 u_int32_t rst_runs; /* 0/1 runs failures */
55 u_int32_t rst_longruns; /* longruns failures */
56 u_int32_t rst_chi; /* chi^2 failures */
59 extern struct rndtest_state *rndtest_attach(device_t dev);
60 extern void rndtest_detach(struct rndtest_state *);
61 extern void rndtest_harvest(struct rndtest_state *arg, void * buf, u_int len);