]> git.ipfire.org Git - thirdparty/rng-tools.git/blame - rngd.h
Change the default device from /dev/hw_random to /dev/hwrng
[thirdparty/rng-tools.git] / rngd.h
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1/*
2 * rngd.h -- rngd globals
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 *
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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
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#ifndef RNGD__H
22#define RNGD__H
23
24#define _GNU_SOURCE
25
26#include "rng-tools-config.h"
27
28#include <unistd.h>
29#include <stdint.h>
62838c65 30#include <stdbool.h>
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31#include <stdio.h>
32#include <syslog.h>
33
34#include "fips.h"
35
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36enum {
37 MAX_RNG_FAILURES = 25,
38};
39
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40/* Command line arguments and processing */
41struct arguments {
42 char *random_name;
c192b4cf 43 char *pid_file;
d1b4c504 44
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45 int random_step;
46 int fill_watermark;
61af3de3 47
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48 bool quiet;
49 bool verbose;
50 bool daemon;
2a014536 51 bool enable_drng;
ca6941f8 52 bool enable_tpm;
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53};
54extern struct arguments *arguments;
55
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56/* structures to store rng information */
57struct rng {
58 char *rng_name;
59 int rng_fd;
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60 bool disabled;
61 int failures;
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62
63 int (*xread) (void *buf, size_t size, struct rng *ent_src);
64 fips_ctx_t *fipsctx;
65
66 struct rng *next;
67};
68
61af3de3 69/* Background/daemon mode */
ca6941f8 70extern bool am_daemon; /* True if we went daemon */
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71
72
73/*
74 * Routines and macros
75 */
76#define message(priority,fmt,args...) do { \
77 if (am_daemon) { \
78 syslog((priority), fmt, ##args); \
79 } else { \
80 fprintf(stderr, fmt, ##args); \
81 fprintf(stderr, "\n"); \
82 } \
83} while (0)
84
a26d20cf 85extern void src_list_add(struct rng *ent_src);
c192b4cf 86extern int write_pid_file(const char *pid_fn);
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87#endif /* RNGD__H */
88