2003-03-11 22:54:44 +00:00
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/* $FreeBSD$ */
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/* $OpenBSD$ */
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2005-01-06 01:43:34 +00:00
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/*-
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2003-03-11 22:54:44 +00:00
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* Copyright (c) 2002 Jason L. Wright (jason@thought.net)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Jason L. Wright
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* Some of the tests depend on these values */
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#define RNDTEST_NBYTES 2500
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#define RNDTEST_NBITS (8 * RNDTEST_NBYTES)
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struct rndtest_state {
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device_t rs_parent; /* associated device */
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u_int8_t *rs_end, *rs_begin, *rs_current;
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struct callout rs_to;
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int rs_collect; /* collect and test data */
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int rs_discard; /* discard/accept random data */
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u_int8_t rs_buf[RNDTEST_NBYTES];
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};
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struct rndtest_stats {
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u_int32_t rst_discard; /* number of bytes discarded */
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u_int32_t rst_tests; /* number of test runs */
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u_int32_t rst_monobit; /* monobit test failures */
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u_int32_t rst_runs; /* 0/1 runs failures */
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u_int32_t rst_longruns; /* longruns failures */
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u_int32_t rst_chi; /* chi^2 failures */
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};
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extern struct rndtest_state *rndtest_attach(device_t dev);
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extern void rndtest_detach(struct rndtest_state *);
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extern void rndtest_harvest(struct rndtest_state *arg, void * buf, u_int len);
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