diff options
Diffstat (limited to 'include/linux/random.h')
-rw-r--r-- | include/linux/random.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/include/linux/random.h b/include/linux/random.h new file mode 100644 index 0000000..cc67034 --- /dev/null +++ b/include/linux/random.h @@ -0,0 +1,72 @@ +/* + * include/linux/random.h + * + * Include file for the random number generator. + */ + +#ifndef _LINUX_RANDOM_H +#define _LINUX_RANDOM_H + +#include <linux/ioctl.h> + +/* ioctl()'s for the random number generator */ + +/* Get the entropy count. */ +#define RNDGETENTCNT _IOR( 'R', 0x00, int ) + +/* Add to (or subtract from) the entropy count. (Superuser only.) */ +#define RNDADDTOENTCNT _IOW( 'R', 0x01, int ) + +/* Get the contents of the entropy pool. (Superuser only.) */ +#define RNDGETPOOL _IOR( 'R', 0x02, int [2] ) + +/* + * Write bytes into the entropy pool and add to the entropy count. + * (Superuser only.) + */ +#define RNDADDENTROPY _IOW( 'R', 0x03, int [2] ) + +/* Clear entropy count to 0. (Superuser only.) */ +#define RNDZAPENTCNT _IO( 'R', 0x04 ) + +/* Clear the entropy pool and associated counters. (Superuser only.) */ +#define RNDCLEARPOOL _IO( 'R', 0x06 ) + +struct rand_pool_info { + int entropy_count; + int buf_size; + __u32 buf[0]; +}; + +/* Exported functions */ + +#ifdef __KERNEL__ + +extern void rand_initialize_irq(int irq); + +extern void add_input_randomness(unsigned int type, unsigned int code, + unsigned int value); +extern void add_interrupt_randomness(int irq); + +extern void get_random_bytes(void *buf, int nbytes); +void generate_random_uuid(unsigned char uuid_out[16]); + +extern __u32 secure_ip_id(__u32 daddr); +extern u32 secure_tcp_port_ephemeral(__u32 saddr, __u32 daddr, __u16 dport); +extern u32 secure_tcpv6_port_ephemeral(const __u32 *saddr, const __u32 *daddr, + __u16 dport); +extern __u32 secure_tcp_sequence_number(__u32 saddr, __u32 daddr, + __u16 sport, __u16 dport); +extern __u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr, + __u16 sport, __u16 dport); + +#ifndef MODULE +extern struct file_operations random_fops, urandom_fops; +#endif + +unsigned int get_random_int(void); +unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len); + +#endif /* __KERNEL___ */ + +#endif /* _LINUX_RANDOM_H */ |