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UPSTREAM: 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>
(cherry picked from commit 75551dbf112c992bc6c99a972990b3f272247e23)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 148665638
Change-Id: I1f0bac8752280f988ed5fcc34d361d87f5e86d85
This commit is contained in:
Andy Lutomirski
2019-12-23 00:20:46 -08:00
committed by Mark Salyzyn
parent 1aee7334f1
commit 42e5d00a9f
2 changed files with 11 additions and 2 deletions
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2
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 */