1 /*- 2 * Copyright (c) 2000-2004 Mark R V Murray 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer 10 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 /* This header contains only those definitions that are global 30 * and non algorithm-specific for the entropy processor 31 */ 32 33 typedef void random_init_func_t(void); 34 typedef void random_deinit_func_t(void); 35 typedef int random_block_func_t(int); 36 typedef int random_read_func_t(void *, int); 37 typedef void random_write_func_t(void *, int); 38 typedef int random_poll_func_t(int, struct thread *); 39 typedef void random_reseed_func_t(void); 40 41 struct random_systat { 42 struct selinfo rsel; 43 const char *ident; 44 int seeded; 45 random_init_func_t *init; 46 random_deinit_func_t *deinit; 47 random_block_func_t *block; 48 random_read_func_t *read; 49 random_write_func_t *write; 50 random_poll_func_t *poll; 51 random_reseed_func_t *reseed; 52 }; 53 54 extern struct random_systat random_systat; 55 56 extern void random_ident_hardware(struct random_systat *); 57 extern void random_null_func(void); 58