Date: Sat, 30 Jul 2016 15:51:16 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r303553 - head/sys/dev/ntb/if_ntb Message-ID: <201607301551.u6UFpGAH090362@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: mav Date: Sat Jul 30 15:51:16 2016 New Revision: 303553 URL: https://svnweb.freebsd.org/changeset/base/303553 Log: Make MAC address generation more random. 'ticks' approach does not work at boot time. Modified: head/sys/dev/ntb/if_ntb/if_ntb.c Modified: head/sys/dev/ntb/if_ntb/if_ntb.c ============================================================================== --- head/sys/dev/ntb/if_ntb/if_ntb.c Sat Jul 30 14:47:04 2016 (r303552) +++ head/sys/dev/ntb/if_ntb/if_ntb.c Sat Jul 30 15:51:16 2016 (r303553) @@ -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++; }
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201607301551.u6UFpGAH090362>