diff options
| author | Joe Hershberger <joe.hershberger@ni.com> | 2012-05-23 07:57:58 +0000 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2012-05-23 14:19:22 -0500 |
| commit | eafc8db0e35275330f43a4cf7b7ae8aba71c9728 (patch) | |
| tree | 0f76700afacfdeab0feafbd787e32d347083a0fd /net/net_rand.h | |
| parent | 806150063a6b98d7e757bd9f640af1755bb387fd (diff) | |
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 <joe.hershberger@ni.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'net/net_rand.h')
| -rw-r--r-- | net/net_rand.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/net/net_rand.h b/net/net_rand.h new file mode 100644 index 0000000000..c98db64280 --- /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__ */ |