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/*
 * include/linux/random.h
 *
 * Include file for the random number generator.
 */
#ifndef _UAPI_LINUX_RANDOM_H
#define _UAPI_LINUX_RANDOM_H
#include <linux/types.h>
#include <linux/ioctl.h>
#include <linux/irqnr.h>
/* ioctl()'s for the random number generator */
/* Get the entropy count. */
#define RNDGETENTCNT	_IOR( 'R', 0x00, int )
/* Add to (or subtract from) the entropy count.  (Superuser only.) */
#define RNDADDTOENTCNT	_IOW( 'R', 0x01, int )
/* Get the contents of the entropy pool.  (Superuser only.) */
#define RNDGETPOOL	_IOR( 'R', 0x02, int [2] )
/* 
 * Write bytes into the entropy pool and add to the entropy count.
 * (Superuser only.)
 */
#define RNDADDENTROPY	_IOW( 'R', 0x03, int [2] )
/* Clear entropy count to 0.  (Superuser only.) */
#define RNDZAPENTCNT	_IO( 'R', 0x04 )
/* Clear the entropy pool and associated counters.  (Superuser only.) */
#define RNDCLEARPOOL	_IO( 'R', 0x06 )
struct rand_pool_info {
	int	entropy_count;
	int	buf_size;
	__u32	buf[0];
};
struct rnd_state {
	__u32 s1, s2, s3;
};
/* Exported functions */
#endif /* _UAPI_LINUX_RANDOM_H */
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