root/include/linux/random.h

/* */

INCLUDED FROM

   1 /*
   2  * include/linux/random.h
   3  *
   4  * Include file for the random number generator.
   5  */
   6 
   7 #ifndef _LINUX_RANDOM_H
   8 #define _LINUX_RANDOM_H
   9 
  10 /* ioctl()'s for the random number generator */
  11 
  12 #define RNDGETENTCNT    0x01080000
  13 #define RNDADDTOENTCNT  0x01080001
  14 #define RNDGETPOOL      0x01080002
  15 #define RNDADDENTROPY   0x01080003
  16 #define RNDZAPENTCNT    0x01080004
  17 
  18 struct rand_pool_info {
  19         int     entropy_count;
  20         int     buf_size;
  21         __u32   buf[0];
  22 };
  23 
  24 /* Exported functions */
  25 
  26 #ifdef __KERNEL__
  27 
  28 extern void rand_initialize(void);
  29 extern void rand_initialize_irq(int irq);
  30 extern void rand_initialize_blkdev(int irq, int mode);
  31 
  32 extern void add_keyboard_randomness(unsigned char scancode);
  33 extern void add_mouse_randomness(__u32 mouse_data);
  34 extern void add_interrupt_randomness(int irq);
  35 extern void add_blkdev_randomness(int major);
  36 
  37 extern void get_random_bytes(void *buf, int nbytes);
  38 
  39 #ifndef MODULE
  40 extern struct file_operations random_fops, urandom_fops;
  41 #endif
  42 
  43 #endif /* __KERNEL___ */
  44 
  45 #endif /* _LINUX_RANDOM_H */

/* */