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| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2017-06-07 19:58:56 -0400 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2017-06-19 22:06:28 -0400 |
| commit | e297a783e41560b44e3c14f38e420cba518113b8 (patch) | |
| tree | a41cb88b534c7e50faa9ae889d825b5c6db8a9b7 /include/linux/random.h | |
| parent | random: silence compiler warnings and fix race (diff) | |
| download | wireguard-linux-e297a783e41560b44e3c14f38e420cba518113b8.tar.xz wireguard-linux-e297a783e41560b44e3c14f38e420cba518113b8.zip | |
random: add wait_for_random_bytes() API
This enables users of get_random_{bytes,u32,u64,int,long} to wait until
the pool is ready before using this function, in case they actually want
to have reliable randomness.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/linux/random.h')
| -rw-r--r-- | include/linux/random.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/random.h b/include/linux/random.h index ed5c3838780d..e29929347c95 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -34,6 +34,7 @@ extern void add_input_randomness(unsigned int type, unsigned int code, extern void add_interrupt_randomness(int irq, int irq_flags) __latent_entropy; extern void get_random_bytes(void *buf, int nbytes); +extern int wait_for_random_bytes(void); extern int add_random_ready_callback(struct random_ready_callback *rdy); extern void del_random_ready_callback(struct random_ready_callback *rdy); extern void get_random_bytes_arch(void *buf, int nbytes); |