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61af3de3 JG |
1 | /* |
2 | * rngd_linux.h -- Entropy sink for the Linux Kernel (/dev/random) | |
3 | * | |
4 | * Copyright (C) 2001 Philipp Rumpf | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
d1b4c504 | 10 | * |
61af3de3 JG |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
d32709d1 | 18 | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA |
61af3de3 JG |
19 | */ |
20 | ||
21 | #ifndef RNGD_LINUX__H | |
22 | #define RNGD_LINUX__H | |
23 | ||
24 | #include "rng-tools-config.h" | |
25 | ||
26 | #include <unistd.h> | |
27 | #include <stdint.h> | |
28 | ||
870f0d5d PA |
29 | /* The default watermark level for this platform */ |
30 | extern int default_watermark(void); | |
31 | ||
61af3de3 JG |
32 | /* |
33 | * Initialize the interface to the Linux Kernel | |
34 | * entropy pool (through /dev/random) | |
35 | * | |
36 | * randomdev is the path to the random device | |
37 | */ | |
38 | extern void init_kernel_rng(const char* randomdev); | |
39 | ||
40 | /* Send entropy to the kernel */ | |
41 | extern void random_add_entropy(void *buf, size_t size); | |
42 | ||
43 | /* Sleep until the kernel is hungry for entropy */ | |
593a9302 | 44 | extern void random_sleep(void); |
61af3de3 JG |
45 | |
46 | #endif /* RNGD_LINUX__H */ | |
47 |