diff options
Diffstat (limited to 'include/linux/random.h')
| -rw-r--r-- | include/linux/random.h | 62 |
1 files changed, 15 insertions, 47 deletions
diff --git a/include/linux/random.h b/include/linux/random.h index ac621ce886ca..d9846088c2c5 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -3,50 +3,11 @@ * * Include file for the random number generator. */ - #ifndef _LINUX_RANDOM_H #define _LINUX_RANDOM_H -#include <linux/types.h> -#include <linux/ioctl.h> -#include <linux/irqnr.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 ) +#include <uapi/linux/random.h> -/* 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]; -}; - -struct rnd_state { - __u32 s1, s2, s3; -}; - -/* Exported functions */ - -#ifdef __KERNEL__ extern void add_device_randomness(const void *, unsigned int); extern void add_input_randomness(unsigned int type, unsigned int code, @@ -64,10 +25,19 @@ extern const struct file_operations random_fops, urandom_fops; unsigned int get_random_int(void); unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len); -u32 random32(void); -void srandom32(u32 seed); +u32 prandom_u32(void); +void prandom_bytes(void *buf, int nbytes); +void prandom_seed(u32 seed); -u32 prandom32(struct rnd_state *); +/* + * These macros are preserved for backward compatibility and should be + * removed as soon as a transition is finished. + */ +#define random32() prandom_u32() +#define srandom32(seed) prandom_seed(seed) + +u32 prandom_u32_state(struct rnd_state *); +void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes); /* * Handle minimum values for seeds @@ -78,11 +48,11 @@ static inline u32 __seed(u32 x, u32 m) } /** - * prandom32_seed - set seed for prandom32(). + * prandom_seed_state - set seed for prandom_u32_state(). * @state: pointer to state structure to receive the seed. * @seed: arbitrary 64-bit value to use as a seed. */ -static inline void prandom32_seed(struct rnd_state *state, u64 seed) +static inline void prandom_seed_state(struct rnd_state *state, u64 seed) { u32 i = (seed >> 32) ^ (seed << 10) ^ seed; @@ -104,6 +74,4 @@ static inline int arch_get_random_int(unsigned int *v) } #endif -#endif /* __KERNEL___ */ - #endif /* _LINUX_RANDOM_H */ |