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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/random.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/random.h')
-rw-r--r--include/linux/random.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/include/linux/random.h b/include/linux/random.h
new file mode 100644
index 000000000000..cc6703449916
--- /dev/null
+++ b/include/linux/random.h
@@ -0,0 +1,72 @@
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
35struct 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
45extern void rand_initialize_irq(int irq);
46
47extern void add_input_randomness(unsigned int type, unsigned int code,
48 unsigned int value);
49extern void add_interrupt_randomness(int irq);
50
51extern void get_random_bytes(void *buf, int nbytes);
52void generate_random_uuid(unsigned char uuid_out[16]);
53
54extern __u32 secure_ip_id(__u32 daddr);
55extern u32 secure_tcp_port_ephemeral(__u32 saddr, __u32 daddr, __u16 dport);
56extern u32 secure_tcpv6_port_ephemeral(const __u32 *saddr, const __u32 *daddr,
57 __u16 dport);
58extern __u32 secure_tcp_sequence_number(__u32 saddr, __u32 daddr,
59 __u16 sport, __u16 dport);
60extern __u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr,
61 __u16 sport, __u16 dport);
62
63#ifndef MODULE
64extern struct file_operations random_fops, urandom_fops;
65#endif
66
67unsigned int get_random_int(void);
68unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len);
69
70#endif /* __KERNEL___ */
71
72#endif /* _LINUX_RANDOM_H */