From eafc8db0e35275330f43a4cf7b7ae8aba71c9728 Mon Sep 17 00:00:00 2001 From: Joe Hershberger Date: Wed, 23 May 2012 07:57:58 +0000 Subject: net: Move MAC-seeded rand out of bootp.c Make the MAC-seeded random number generator available to /net in general. MAC-seeded rand will be needed by link-local as well, so give it an interface. Signed-off-by: Joe Hershberger Acked-by: Simon Glass --- net/net_rand.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 net/net_rand.h (limited to 'net/net_rand.h') diff --git a/net/net_rand.h b/net/net_rand.h new file mode 100644 index 0000000..c98db64 --- /dev/null +++ b/net/net_rand.h @@ -0,0 +1,26 @@ +/* + * Copied from LiMon - BOOTP. + * + * Copyright 1994, 1995, 2000 Neil Russell. + * (See License) + * Copyright 2000 Paolo Scaffardi + */ + +#ifndef __NET_RAND_H__ +#define __NET_RAND_H__ + +#define RAND_MAX 0xffffffff + +/* + * Seed the random number generator using the eth0 MAC address + */ +void srand_mac(void); + +/* + * Get a random number (after seeding with MAC address) + * + * @return random number + */ +unsigned long rand(void); + +#endif /* __NET_RAND_H__ */ -- cgit v1.1