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random: add_hwgenerator_randomness() for feeding entropy from devices

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This patch adds an interface to the random pool for feeding entropy
in-kernel.

Signed-off-by: Torsten Duwe <duwe@suse.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Acked-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Torsten Duwe
2014-06-14 23:38:36 -04:00
committed by Theodore Ts'o
parent 43759d4f42
commit c84dbf61a7
2 changed files with 23 additions and 0 deletions
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include/linux/hw_random.h
+2
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@@ -47,5 +47,7 @@ struct hwrng {
extern int hwrng_register(struct hwrng *rng);
/** Unregister a Hardware Random Number Generator driver. */
extern void hwrng_unregister(struct hwrng *rng);
/** Feed random bits into the pool. */
extern void add_hwgenerator_randomness(const char *buffer, size_t count, size_t entropy);
#endif /* LINUX_HWRANDOM_H_ */