random32.c File Reference

#include <linux/types.h>
#include <linux/percpu.h>
#include <linux/export.h>
#include <linux/jiffies.h>
#include <linux/random.h>

Go to the source code of this file.

Macros
#define	TAUSWORTHE(s, a, b, c, d)   ((s&c)<<d) ^ (((s <<a) ^ s)>>b)
#define	LCG(x)   ((x) * 69069) /* super-duper LCG */

Functions
u32	prandom32 (struct rnd_state *state)
	EXPORT_SYMBOL (prandom32)
u32	random32 (void)
	EXPORT_SYMBOL (random32)
void	srandom32 (u32 entropy)
	EXPORT_SYMBOL (srandom32)
	core_initcall (random32_init)
	late_initcall (random32_reseed)

Macro Definition Documentation

#define LCG

(

x

)

((x) * 69069) /* super-duper LCG */

#define TAUSWORTHE	(		s,
			a,
			b,
			c,
			d
	)		((s&c)<<d) ^ (((s <<a) ^ s)>>b)

Function Documentation

core_initcall

(

random32_init

)

EXPORT_SYMBOL

(

prandom32

)

EXPORT_SYMBOL

(

random32

)

EXPORT_SYMBOL

(

srandom32

)

late_initcall

(

random32_reseed

)

u32 prandom32

(

struct rnd_state *

state

)

prandom32 - seeded pseudo-random number generator. : pointer to state structure holding seeded state.

This is used for pseudo-randomness with no outside seeding. For more random results, use random32().

Definition at line 51 of file random32.c.

u32 random32

(

void

)

random32 - pseudo random number generator

A 32 bit pseudo-random number is generated using a fast algorithm suitable for simulation. This algorithm is NOT considered safe for cryptographic use.

Definition at line 70 of file random32.c.

void srandom32

(

u32

entropy

)

srandom32 - add entropy to pseudo random number generator : seed value

Add some additional seeding to the random32() pool.

Definition at line 86 of file random32.c.