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Commit 4ec05103 authored by Harout Hedeshian's avatar Harout Hedeshian Committed by Subash Abhinov Kasiviswanathan
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ipv6: generate random IID only for temporary addresses on RAWIP devices 



RAWIP devices require the device IID to be used for permanent
addresses only, and random IIDs to be generated for temporary
addresses. Legacy user-space applications rely on this behavior

CRs-Fixed: 1078373
Change-Id: I007bdf8bcfdce687ad31612fed9d9c769321edb9
Signed-off-by: default avatarHarout Hedeshian <harouth@codeaurora.org>
Signed-off-by: default avatarSubash Abhinov Kasiviswanathan <subashab@codeaurora.org>
parent 54948008

net/ipv6/addrconf.c

+9 −2
Original line number Original line Diff line number Diff line
@@ -2128,10 +2128,17 @@ static int ipv6_generate_eui64(u8 *eui, struct net_device *dev) 
		return addrconf_ifid_ieee1394(eui, dev);

		return addrconf_ifid_ieee1394(eui, dev);

	case ARPHRD_TUNNEL6:

	case ARPHRD_TUNNEL6:

		return addrconf_ifid_ip6tnl(eui, dev);

		return addrconf_ifid_ip6tnl(eui, dev);

	case ARPHRD_RAWIP:

	case ARPHRD_RAWIP: {

		struct in6_addr lladdr;



		if (ipv6_get_lladdr(dev, &lladdr, IFA_F_TENTATIVE))

			get_random_bytes(eui, 8);

			get_random_bytes(eui, 8);

		else

			memcpy(eui, lladdr.s6_addr + 8, 8);



		return 0;

		return 0;

	}

	}

	}

	return -1;

	return -1;

}

}