[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: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
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@ -908,11 +908,18 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
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score.addr_type = __ipv6_addr_type(&ifa->addr);
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/* Rule 0: Candidate Source Address (section 4)
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/* Rule 0:
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* - Tentative Address (RFC2462 section 5.4)
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* - A tentative address is not considered
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* "assigned to an interface" in the traditional
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* sense.
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* - Candidate Source Address (section 4)
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* - In any case, anycast addresses, multicast
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* addresses, and the unspecified address MUST
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* NOT be included in a candidate set.
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*/
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if (ifa->flags & IFA_F_TENTATIVE)
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continue;
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if (unlikely(score.addr_type == IPV6_ADDR_ANY ||
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score.addr_type & IPV6_ADDR_MULTICAST)) {
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LIMIT_NETDEBUG(KERN_DEBUG
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