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 #include <linux/ioctl.h>
11
12 /* ioctl()'s for the random number generator */
13
14 /* Get the entropy count. */
15 #define RNDGETENTCNT _IOR( 'R', 0x00, int )
16
17 /* Add to (or subtract from) the entropy count. (Superuser only.) */
18 #define RNDADDTOENTCNT _IOW( 'R', 0x01, int )
19
20 /* Get the contents of the entropy pool. (Superuser only.) */
21 #define RNDGETPOOL _IOR( 'R', 0x02, int [2] )
22
23 /*
24 * Write bytes into the entropy pool and add to the entropy count.
25 * (Superuser only.)
26 */
27 #define RNDADDENTROPY _IOW( 'R', 0x03, int [2] )
28
29 /* Clear entropy count to 0. (Superuser only.) */
30 #define RNDZAPENTCNT _IO( 'R', 0x04 )
31
32 /* Clear the entropy pool and associated counters. (Superuser only.) */
33 #define RNDCLEARPOOL _IO( 'R', 0x06 )
34
35 struct rand_pool_info {
36 int entropy_count;
37 int buf_size;
38 __u32 buf[0];
39 };
40
41 /* Exported functions */
42
43 #ifdef __KERNEL__
44
45 extern void rand_initialize(void);
46 extern void rand_initialize_irq(int irq);
47 extern void rand_initialize_blkdev(int irq, int mode);
48
49 extern void batch_entropy_store(u32 a, u32 b, int num);
50
51 extern void add_keyboard_randomness(unsigned char scancode);
52 extern void add_mouse_randomness(__u32 mouse_data);
53 extern void add_interrupt_randomness(int irq);
54 extern void add_blkdev_randomness(int major);
55
56 extern void get_random_bytes(void *buf, int nbytes);
57 void generate_random_uuid(unsigned char uuid_out[16]);
58
59 extern __u32 secure_ip_id(__u32 daddr);
60 extern __u32 secure_tcp_sequence_number(__u32 saddr, __u32 daddr,
61 __u16 sport, __u16 dport);
62 extern __u32 secure_tcp_syn_cookie(__u32 saddr, __u32 daddr,
63 __u16 sport, __u16 dport,
64 __u32 sseq, __u32 count,
65 __u32 data);
66 extern __u32 check_tcp_syn_cookie(__u32 cookie, __u32 saddr,
67 __u32 daddr, __u16 sport,
68 __u16 dport, __u32 sseq,
69 __u32 count, __u32 maxdiff);
70 extern __u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr,
71 __u16 sport, __u16 dport);
72
73 extern __u32 secure_ipv6_id(__u32 *daddr);
74
75 #ifndef MODULE
76 extern struct file_operations random_fops, urandom_fops;
77 #endif
78
79 #endif /* __KERNEL___ */
80
81 #endif /* _LINUX_RANDOM_H */
82
This page was automatically generated by the
LXR engine.
Visit the LXR main site for more
information.