random.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:2k
- /*
- * 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);
- extern u64 secure_dccp_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 */