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2021-01-19net: Use NDRNG device in srand_mac()Matthias Brugger1-1/+18
When calling srand_mac we use a weak seed dependent on the mac address. If present, use a RNG device instead to incerase entropy. Signed-off-by: Matthias Brugger <mbrugger@suse.com> Reviewed-by: Torsten Duwe <duwe@suse.de>
2017-08-07net: Get mac address from driver as seedJimmy Du1-2/+2
Previously seeded by obtaining mac addr from env. If mac addr was never set, rand would output 0. This fix obtains the mac addr from driver instead. Signed-off-by: Jimmy Du <jimmy.du@ni.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2012-07-07net: use common rand()/srand() functionsMichael Walle1-7/+24
Replace rand() with the functions from lib/. The link-local network code stores its own seed, derived from the MAC address. Thus making it independent from calls to srand() in other modules. Signed-off-by: Michael Walle <michael@walle.cc> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-23net: Move MAC-seeded rand out of bootp.cJoe Hershberger1-0/+26
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>