| /*- |
| * Copyright (c) 2000 Mark R. V. Murray |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer |
| * in this position and unchanged. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _BSD_SYS_RANDOM_H_ |
| #define _BSD_SYS_RANDOM_H_ |
| |
| #ifdef _FREEBSD_KERNEL |
| |
| int read_random(void *, int); |
| |
| /* |
| * Note: if you add or remove members of esource, remember to also update the |
| * KASSERT regarding what valid members are in random_harvest_internal(). |
| */ |
| enum esource { |
| RANDOM_START = 0, |
| RANDOM_WRITE = 0, |
| RANDOM_KEYBOARD, |
| RANDOM_MOUSE, |
| RANDOM_NET, |
| RANDOM_INTERRUPT, |
| RANDOM_PURE, |
| ENTROPYSOURCE |
| }; |
| void random_harvest(void *, u_int, u_int, u_int, enum esource); |
| |
| /* Allow the sysadmin to select the broad category of |
| * entropy types to harvest |
| */ |
| struct harvest_select { |
| int ethernet; |
| int point_to_point; |
| int interrupt; |
| int swi; |
| }; |
| |
| extern struct harvest_select harvest; |
| |
| #endif /* _FREEBSD_KERNEL */ |
| |
| #endif /* _BSD_SYS_RANDOM_H_ */ |
