Author: mav
Date: Thu Aug 18 09:38:01 2016
New Revision: 304372
URL: https://svnweb.freebsd.org/changeset/base/304372
Log:
MFC r303553: Make MAC address generation more random.
'ticks' approach does not work at boot time.
Modified:
stable/11/sys/dev/ntb/if_ntb/if_ntb.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/dev/ntb/if_ntb/if_ntb.c
==============================================================================
--- stable/11/sys/dev/ntb/if_ntb/if_ntb.c Thu Aug 18 09:37:27 2016
(r304371)
+++ stable/11/sys/dev/ntb/if_ntb/if_ntb.c Thu Aug 18 09:38:01 2016
(r304372)
@@ -493,10 +493,9 @@ static void
create_random_local_eui48(u_char *eaddr)
{
static uint8_t counter = 0;
- uint32_t seed = ticks;
eaddr[0] = EUI48_LOCALLY_ADMINISTERED;
- memcpy(&eaddr[1], &seed, sizeof(uint32_t));
+ arc4rand(&eaddr[1], 4, 0);
eaddr[5] = counter++;
}
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