Rev 422 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* |
| 2 | * include/linux/random.h |
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| 3 | * |
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| 4 | * Include file for the random number generator. |
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| 5 | */ |
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| 6 | |||
| 7 | #ifndef _LINUX_RANDOM_H |
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| 8 | #define _LINUX_RANDOM_H |
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| 9 | |||
| 10 | #include <linux/ioctl.h> |
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| 11 | |||
| 12 | /* ioctl()'s for the random number generator */ |
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| 13 | |||
| 14 | /* Get the entropy count. */ |
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| 15 | #define RNDGETENTCNT _IOR( 'R', 0x00, int ) |
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| 16 | |||
| 17 | /* Add to (or subtract from) the entropy count. (Superuser only.) */ |
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| 18 | #define RNDADDTOENTCNT _IOW( 'R', 0x01, int ) |
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| 19 | |||
| 20 | /* Get the contents of the entropy pool. (Superuser only.) */ |
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| 21 | #define RNDGETPOOL _IOR( 'R', 0x02, int [2] ) |
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| 22 | |||
| 23 | /* |
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| 24 | * Write bytes into the entropy pool and add to the entropy count. |
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| 25 | * (Superuser only.) |
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| 26 | */ |
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| 27 | #define RNDADDENTROPY _IOW( 'R', 0x03, int [2] ) |
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| 28 | |||
| 29 | /* Clear entropy count to 0. (Superuser only.) */ |
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| 30 | #define RNDZAPENTCNT _IO( 'R', 0x04 ) |
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| 31 | |||
| 32 | /* Clear the entropy pool and associated counters. (Superuser only.) */ |
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| 33 | #define RNDCLEARPOOL _IO( 'R', 0x06 ) |
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| 34 | |||
| 35 | struct rand_pool_info { |
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| 36 | int entropy_count; |
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| 37 | int buf_size; |
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| 38 | __u32 buf[0]; |
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| 39 | }; |
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| 40 | |||
| 41 | /* Exported functions */ |
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| 42 | |||
| 43 | #ifdef __KERNEL__ |
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| 44 | |||
| 45 | extern void rand_initialize_irq(int irq); |
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| 46 | |||
| 47 | extern void batch_entropy_store(u32 a, u32 b, int num); |
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| 48 | |||
| 49 | extern void add_keyboard_randomness(unsigned char scancode); |
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| 50 | extern void add_mouse_randomness(__u32 mouse_data); |
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| 51 | extern void add_interrupt_randomness(int irq); |
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| 52 | |||
| 53 | extern void get_random_bytes(void *buf, int nbytes); |
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| 54 | void generate_random_uuid(unsigned char uuid_out[16]); |
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| 55 | |||
| 56 | extern __u32 secure_ip_id(__u32 daddr); |
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| 57 | extern __u32 secure_tcp_sequence_number(__u32 saddr, __u32 daddr, |
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| 58 | __u16 sport, __u16 dport); |
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| 59 | extern __u32 secure_tcp_syn_cookie(__u32 saddr, __u32 daddr, |
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| 60 | __u16 sport, __u16 dport, |
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| 61 | __u32 sseq, __u32 count, |
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| 62 | __u32 data); |
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| 63 | extern __u32 check_tcp_syn_cookie(__u32 cookie, __u32 saddr, |
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| 64 | __u32 daddr, __u16 sport, |
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| 65 | __u16 dport, __u32 sseq, |
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| 66 | __u32 count, __u32 maxdiff); |
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| 67 | extern __u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr, |
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| 68 | __u16 sport, __u16 dport); |
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| 69 | |||
| 70 | extern __u32 secure_ipv6_id(__u32 *daddr); |
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| 71 | |||
| 72 | #ifndef MODULE |
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| 73 | extern struct file_operations random_fops, urandom_fops; |
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| 74 | #endif |
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| 75 | |||
| 76 | #endif /* __KERNEL___ */ |
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| 77 | |||
| 78 | #endif /* _LINUX_RANDOM_H */ |