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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2005-12-21 08:58:01 -0500
committerYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2005-12-21 08:58:01 -0500
commit6b3ae80a63e47f6e97d68a1ddd520e3509e62821 (patch)
tree8f4f40abffc2702c8b05323c93b5f122360ea412 /net/ipv6
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/ipv6')
-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,
908 908
909 score.addr_type = __ipv6_addr_type(&ifa->addr); 909 score.addr_type = __ipv6_addr_type(&ifa->addr);
910 910
911 /* Rule 0: Candidate Source Address (section 4) 911 /* Rule 0:
912 * - Tentative Address (RFC2462 section 5.4)
913 * - A tentative address is not considered
914 * "assigned to an interface" in the traditional
915 * sense.
916 * - Candidate Source Address (section 4)
912 * - In any case, anycast addresses, multicast 917 * - In any case, anycast addresses, multicast
913 * addresses, and the unspecified address MUST 918 * addresses, and the unspecified address MUST
914 * NOT be included in a candidate set. 919 * NOT be included in a candidate set.
915 */ 920 */
921 if (ifa->flags & IFA_F_TENTATIVE)
922 continue;
916 if (unlikely(score.addr_type == IPV6_ADDR_ANY || 923 if (unlikely(score.addr_type == IPV6_ADDR_ANY ||
917 score.addr_type & IPV6_ADDR_MULTICAST)) { 924 score.addr_type & IPV6_ADDR_MULTICAST)) {
918 LIMIT_NETDEBUG(KERN_DEBUG 925 LIMIT_NETDEBUG(KERN_DEBUG