lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 21 Jul 2010 08:26:27 +0200 From: Harald Hoyer <harald@...hat.com> To: David Miller <davem@...emloft.net> CC: shemminger@...tta.com, bhutchings@...arflare.com, sassmann@...hat.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, gospo@...hat.com, gregory.v.rose@...el.com, alexander.h.duyck@...el.com, leedom@...lsio.com Subject: Re: [PATCH net-next] sysfs: add entry to indicate network interfaces with random MAC address On 07/20/2010 11:20 PM, David Miller wrote: > From: Stephen Hemminger<shemminger@...tta.com> > Date: Tue, 20 Jul 2010 14:18:16 -0700 > >> No one mentioned that the first octet of an Ethernet address already >> indicates "software generated" Ethernet address. Per the standard, >> if bit 1 is set it means address is locally assigned. >> >> static inline bool is_locally_assigned_ether(const u8 *addr) >> { >> return (addr[0]& 0x2) != 0; >> } > > W00t! > > Indeed, can udev just use that? :-) It already does: see /lib/udev/rules.d/75-persistent-net-generator.rules -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists