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| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2005-12-21 22:58:01 +0900 |
|---|---|---|
| committer | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2005-12-21 22:58:01 +0900 |
| commit | 6b3ae80a63e47f6e97d68a1ddd520e3509e62821 (patch) | |
| tree | 8f4f40abffc2702c8b05323c93b5f122360ea412 /net/ipv6 | |
| parent | c5e33bddd3c798f681f8f3027270127be6b61a3b (diff) | |
| download | blackbird-op-linux-6b3ae80a63e47f6e97d68a1ddd520e3509e62821.tar.gz blackbird-op-linux-6b3ae80a63e47f6e97d68a1ddd520e3509e62821.zip | |
[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>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/addrconf.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index f6ead6a843e3..fd03c3944366 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -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 |
