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Commit 6b3ae80a authored by YOSHIFUJI Hideaki's avatar YOSHIFUJI Hideaki
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[IPV6]: Don't select a tentative address as a source address. 



A tentative address is not considered "assigned to an interface"
in the traditional sense (RFC2462 Section 4).
Don't try to select such an address for the source address.

Signed-off-by: default avatarYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
parent c5e33bdd

net/ipv6/addrconf.c

+8 −1
Original line number Diff line number Diff line
@@ -908,11 +908,18 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev, 


			score.addr_type = __ipv6_addr_type(&ifa->addr);



			/* Rule 0: Candidate Source Address (section 4)

			/* Rule 0:

			 * - Tentative Address (RFC2462 section 5.4)

			 *  - A tentative address is not considered

			 *    "assigned to an interface" in the traditional

			 *    sense.

			 * - Candidate Source Address (section 4)

			 *  - In any case, anycast addresses, multicast

			 *    addresses, and the unspecified address MUST

			 *    NOT be included in a candidate set.

			 */

			if (ifa->flags & IFA_F_TENTATIVE)

				continue;

			if (unlikely(score.addr_type == IPV6_ADDR_ANY ||

				     score.addr_type & IPV6_ADDR_MULTICAST)) {

				LIMIT_NETDEBUG(KERN_DEBUG