Linux Kernel  3.7.1
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random.h
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1 /*
2  * include/linux/random.h
3  *
4  * Include file for the random number generator.
5  */
6 
7 #ifndef _UAPI_LINUX_RANDOM_H
8 #define _UAPI_LINUX_RANDOM_H
9 
10 #include <linux/types.h>
11 #include <linux/ioctl.h>
12 #include <linux/irqnr.h>
13 
14 /* ioctl()'s for the random number generator */
15 
16 /* Get the entropy count. */
17 #define RNDGETENTCNT _IOR( 'R', 0x00, int )
18 
19 /* Add to (or subtract from) the entropy count. (Superuser only.) */
20 #define RNDADDTOENTCNT _IOW( 'R', 0x01, int )
21 
22 /* Get the contents of the entropy pool. (Superuser only.) */
23 #define RNDGETPOOL _IOR( 'R', 0x02, int [2] )
24 
25 /*
26  * Write bytes into the entropy pool and add to the entropy count.
27  * (Superuser only.)
28  */
29 #define RNDADDENTROPY _IOW( 'R', 0x03, int [2] )
30 
31 /* Clear entropy count to 0. (Superuser only.) */
32 #define RNDZAPENTCNT _IO( 'R', 0x04 )
33 
34 /* Clear the entropy pool and associated counters. (Superuser only.) */
35 #define RNDCLEARPOOL _IO( 'R', 0x06 )
36 
39  int buf_size;
40  __u32 buf[0];
41 };
42 
43 struct rnd_state {
45 };
46 
47 /* Exported functions */
48 
49 
50 #endif /* _UAPI_LINUX_RANDOM_H */