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random: add GRND_INSECURE to return best-effort non-cryptographic bytes

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Signed-off-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/d5473b56cf1fa900ca4bd2b3fc1e5b8874399919.1577088521.git.luto@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Andy Lutomirski 2019-12-23 00:20:46 -08:00 • committed by Theodore Ts'o
parent c6f1deb158
commit 75551dbf11
2 changed files with 11 additions and 2 deletions
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include/uapi/linux/random.h
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@ -49,8 +49,10 @@ struct rand_pool_info {
*
* GRND_NONBLOCK Don't block and return EAGAIN instead
* GRND_RANDOM Use the /dev/random pool instead of /dev/urandom
* GRND_INSECURE Return non-cryptographic random bytes
*/
#define GRND_NONBLOCK 0x0001
#define GRND_RANDOM 0x0002
#define GRND_INSECURE 0x0004
#endif /* _UAPI_LINUX_RANDOM_H */