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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2005-12-21 22:58:01 +0900
committerYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2005-12-21 22:58:01 +0900
commit6b3ae80a63e47f6e97d68a1ddd520e3509e62821 (patch)
tree8f4f40abffc2702c8b05323c93b5f122360ea412 /net
parentc5e33bddd3c798f681f8f3027270127be6b61a3b (diff)
[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')
-rw-r--r--net/ipv6/addrconf.c9
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