2 * include/linux/random.h
4 * Include file for the random number generator.
6 #ifndef _LINUX_RANDOM_H
7 #define _LINUX_RANDOM_H
9 #include <linux/list.h>
10 #include <linux/once.h>
12 #include <uapi/linux/random.h>
14 struct random_ready_callback {
15 struct list_head list;
16 void (*func)(struct random_ready_callback *rdy);
20 extern void add_device_randomness(const void *, unsigned int);
21 extern void add_input_randomness(unsigned int type, unsigned int code,
23 extern void add_interrupt_randomness(int irq, int irq_flags);
25 extern void get_random_bytes(void *buf, int nbytes);
26 extern int add_random_ready_callback(struct random_ready_callback *rdy);
27 extern void del_random_ready_callback(struct random_ready_callback *rdy);
28 extern void get_random_bytes_arch(void *buf, int nbytes);
29 void generate_random_uuid(unsigned char uuid_out[16]);
30 extern int random_int_secret_init(void);
33 extern const struct file_operations random_fops, urandom_fops;
36 unsigned int get_random_int(void);
37 unsigned long get_random_long(void);
38 unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
41 * This is designed to be standalone for just prandom
42 * users, but for now we include it from <linux/random.h>
45 #include <linux/prandom.h>
47 #ifdef CONFIG_ARCH_RANDOM
48 # include <asm/archrandom.h>
50 static inline int arch_get_random_long(unsigned long *v)
54 static inline int arch_get_random_int(unsigned int *v)
58 static inline int arch_has_random(void)
62 static inline int arch_get_random_seed_long(unsigned long *v)
66 static inline int arch_get_random_seed_int(unsigned int *v)
70 static inline int arch_has_random_seed(void)
76 #endif /* _LINUX_RANDOM_H */