Commit e34c9a69 authored by Hannes Frederic Sowa's avatar Hannes Frederic Sowa Committed by David S. Miller
Browse files

net: switch net_secret key generation to net_get_random_once 



Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 222e83d2

net/core/secure_seq.c

+2 −12
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
#include <linux/hrtimer.h>

#include <linux/ktime.h>

#include <linux/string.h>

#include <linux/net.h>



#include <net/secure_seq.h>
@@ -16,18 +17,7 @@ static u32 net_secret[NET_SECRET_SIZE] ____cacheline_aligned; 


static void net_secret_init(void)

{

	u32 tmp;

	int i;



	if (likely(net_secret[0]))

		return;



	for (i = NET_SECRET_SIZE; i > 0;) {

		do {

			get_random_bytes(&tmp, sizeof(tmp));

		} while (!tmp);

		cmpxchg(&net_secret[--i], 0, tmp);

	}

	net_get_random_once(net_secret, sizeof(net_secret));

}



#ifdef CONFIG_INET