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/*
* rngd.h -- rngd globals
*
* Copyright (C) 2001 Philipp Rumpf
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef RNGD__H
#define RNGD__H
#define _GNU_SOURCE
#include "rng-tools-config.h"
#include <unistd.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <syslog.h>
#include "fips.h"
enum {
MAX_RNG_FAILURES = 25,
RNG_OK_CREDIT = 1000, /* ~1:1250 false positives */
};
/* Command line arguments and processing */
struct arguments {
char *random_name;
char *pid_file;
int random_step;
int fill_watermark;
bool quiet;
bool verbose;
bool daemon;
bool enable_drng;
bool enable_tpm;
};
extern struct arguments *arguments;
/* structures to store rng information */
struct rng {
char *rng_name;
int rng_fd;
bool disabled;
int failures;
int success;
int (*xread) (void *buf, size_t size, struct rng *ent_src);
fips_ctx_t *fipsctx;
struct rng *next;
};
/* Background/daemon mode */
extern bool am_daemon; /* True if we went daemon */
/*
* Routines and macros
*/
#define message(priority,fmt,args...) do { \
if (am_daemon) { \
syslog((priority), fmt, ##args); \
} else { \
fprintf(stderr, fmt, ##args); \
fprintf(stderr, "\n"); \
} \
} while (0)
extern void src_list_add(struct rng *ent_src);
extern int write_pid_file(const char *pid_fn);
#endif /* RNGD__H */
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