random.c File Reference

#include <linux/utsname.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/string.h>
#include <linux/fcntl.h>
#include <linux/slab.h>
#include <linux/random.h>
#include <linux/poll.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/genhd.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/spinlock.h>
#include <linux/percpu.h>
#include <linux/cryptohash.h>
#include <linux/fips.h>
#include <linux/ptrace.h>
#include <linux/kmemcheck.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/irq.h>
#include <asm/irq_regs.h>
#include <asm/io.h>
#include <trace/events/random.h>

Go to the source code of this file.

Data Structures
struct	poolinfo
struct	entropy_store
struct	fast_pool
struct	timer_rand_state

Macros
#define	CREATE_TRACE_POINTS
#define	INPUT_POOL_WORDS   128
#define	OUTPUT_POOL_WORDS   32
#define	SEC_XFER_SIZE   512
#define	EXTRACT_SIZE   10
#define	LONGS(x)   (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long))
#define	POOLBITS   poolwords*32
#define	POOLBYTES   poolwords*4
#define	DEBUG_ENT(fmt, arg...)   do {} while (0)

Functions
void	add_device_randomness (const void *buf, unsigned int size)
	EXPORT_SYMBOL (add_device_randomness)
void	add_input_randomness (unsigned int type, unsigned int code, unsigned int value)
	EXPORT_SYMBOL_GPL (add_input_randomness)
void	add_interrupt_randomness (int irq, int irq_flags)
void	get_random_bytes (void *buf, int nbytes)
	EXPORT_SYMBOL (get_random_bytes)
void	get_random_bytes_arch (void *buf, int nbytes)
	EXPORT_SYMBOL (get_random_bytes_arch)
	module_init (rand_initialize)
void	generate_random_uuid (unsigned char uuid_out[16])
	EXPORT_SYMBOL (generate_random_uuid)
	late_initcall (random_int_secret_init)
unsigned int	get_random_int (void)
unsigned long	randomize_range (unsigned long start, unsigned long end, unsigned long len)

Variables
struct file_operations	random_fops
struct file_operations	urandom_fops

Macro Definition Documentation

#define CREATE_TRACE_POINTS

Definition at line 269 of file random.c.

#define DEBUG_ENT	(		fmt,
			arg...
	)		do {} while (0)

Definition at line 414 of file random.c.

#define EXTRACT_SIZE   10

Definition at line 278 of file random.c.

#define INPUT_POOL_WORDS   128

Definition at line 275 of file random.c.

#define LONGS

(

x

)

(((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long))

Definition at line 280 of file random.c.

#define OUTPUT_POOL_WORDS   32

Definition at line 276 of file random.c.

#define POOLBITS   poolwords*32

Definition at line 349 of file random.c.

#define POOLBYTES   poolwords*4

Definition at line 350 of file random.c.

#define SEC_XFER_SIZE   512

Definition at line 277 of file random.c.

Function Documentation

void add_device_randomness	(	const void *	buf,
		unsigned int	size
	)

Definition at line 647 of file random.c.

void add_input_randomness	(	unsigned int	type,
		unsigned int	code,
		unsigned int	value
	)

Definition at line 729 of file random.c.

void add_interrupt_randomness	(	int	irq,
		int	irq_flags
	)

Definition at line 747 of file random.c.

EXPORT_SYMBOL

(

add_device_randomness

)

EXPORT_SYMBOL

(

get_random_bytes

)

EXPORT_SYMBOL

(

get_random_bytes_arch

)

EXPORT_SYMBOL

(

generate_random_uuid

)

EXPORT_SYMBOL_GPL

(

add_input_randomness

)

void generate_random_uuid

(

unsigned char

uuid_out[16]

)

Definition at line 1324 of file random.c.

void get_random_bytes	(	void *	buf,
		int	nbytes
	)

Definition at line 1033 of file random.c.

void get_random_bytes_arch	(	void *	buf,
		int	nbytes
	)

Definition at line 1049 of file random.c.

unsigned int get_random_int

(

void

)

Definition at line 1453 of file random.c.

late_initcall

(

random_int_secret_init

)

module_init

(

rand_initialize

)

unsigned long randomize_range	(	unsigned long	start,
		unsigned long	end,
		unsigned long	len
	)

Definition at line 1481 of file random.c.

Variable Documentation

struct file_operations random_fops

Initial value:

= {
    .read  = random_read,
    .write = random_write,
    .poll  = random_poll,
    .unlocked_ioctl = random_ioctl,
    .fasync = random_fasync,
    .llseek = noop_llseek,
}

Definition at line 1297 of file random.c.

struct file_operations urandom_fops

Initial value:

= {
    .read  = urandom_read,
    .write = random_write,
    .unlocked_ioctl = random_ioctl,
    .fasync = random_fasync,
    .llseek = noop_llseek,
}

Definition at line 1306 of file random.c.