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random: add new ioctl RNDRESEEDCRNG

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Add a new ioctl which forces the the crng to be reseeded.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
This commit is contained in:
Theodore Ts'o 2018-04-11 16:32:17 -04:00
parent 0bb29a849a
commit d848e5f8e1
2 changed files with 15 additions and 1 deletions
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3
include/uapi/linux/random.h
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@ -35,6 +35,9 @@
/* Clear the entropy pool and associated counters. (Superuser only.) */
#define RNDCLEARPOOL _IO( 'R', 0x06 )
/* Reseed CRNG. (Superuser only.) */
#define RNDRESEEDCRNG _IO( 'R', 0x07 )
struct rand_pool_info {
int entropy_count;
int buf_size;