| Message ID | 5300DDB1.9000404@openwrt.org |
|---|---|
| State | Superseded, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index ad23569..55c35d5 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1013,7 +1013,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) __in6_ifa_put(ifp); } - if (ifp->flags & IFA_F_PERMANENT && !(ifp->flags & IFA_F_NOPREFIXROUTE)) + if (!(ifp->flags & IFA_F_NOPREFIXROUTE)) action = check_cleanup_prefix_route(ifp, &expires); list_del_init(&ifp->if_list); -- 1.8.3.2
When temporary addresses are created in userspace an accompanying on-link prefix-route is created alongside. However when said address is afterwards removed in userspace the respective prefix route remains until it expires. Similarly when userspace turns a permanent address into a temporary one the prefix route remains and is not removed when the address expires and is thus dangling until removed manually. This behavior is inconsistent with the addition and removal of permanent addresses and can potentially cause lots of dangling routes on downstream interfaces on an IPv6-router with changing prefixes. This patch runs the on-link prefix removal check also when a temporary address is removed and thus unifies the prefix route handling. Signed-off-by: Steven Barth <cyrus@openwrt.org> --- net/ipv6/addrconf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html