| /* |
| * 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(void); |
| extern void rand_initialize_irq(int irq); |
| extern void rand_initialize_blkdev(int irq, int mode); |
| |
| extern void batch_entropy_store(u32 a, u32 b, int num); |
| |
| extern void add_keyboard_randomness(unsigned char scancode); |
| extern void add_mouse_randomness(__u32 mouse_data); |
| extern void add_interrupt_randomness(int irq); |
| extern void add_blkdev_randomness(int major); |
| |
| 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_sequence_number(__u32 saddr, __u32 daddr, |
| __u16 sport, __u16 dport); |
| extern __u32 secure_tcp_syn_cookie(__u32 saddr, __u32 daddr, |
| __u16 sport, __u16 dport, |
| __u32 sseq, __u32 count, |
| __u32 data); |
| extern __u32 check_tcp_syn_cookie(__u32 cookie, __u32 saddr, |
| __u32 daddr, __u16 sport, |
| __u16 dport, __u32 sseq, |
| __u32 count, __u32 maxdiff); |
| extern __u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr, |
| __u16 sport, __u16 dport); |
| |
| extern __u32 secure_ipv6_id(__u32 *daddr); |
| |
| #ifndef MODULE |
| extern struct file_operations random_fops, urandom_fops; |
| #endif |
| |
| #endif /* __KERNEL___ */ |
| |
| #endif /* _LINUX_RANDOM_H */ |