Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
[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>
+8
-1
net/ipv6/addrconf.c
+8
-1
net/ipv6/addrconf.c
···
908
908
909
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
917
* - In any case, anycast addresses, multicast
913
918
* addresses, and the unspecified address MUST
914
919
* NOT be included in a candidate set.
915
920
*/
921
+
if (ifa->flags & IFA_F_TENTATIVE)
922
+
continue;
916
923
if (unlikely(score.addr_type == IPV6_ADDR_ANY ||
917
924
score.addr_type & IPV6_ADDR_MULTICAST)) {
918
925
LIMIT_NETDEBUG(KERN_DEBUG