ipv6: automatically enable stable privacy mode if stable_secret set

[firefly-linux-kernel-4.4.55.git] / net / ipv6 / addrconf.c

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index d72fa90d6feb0122d15d68d6d862e5299d331008..17f8e7ea133b49801f49791c5f9c1968e8584e88 100644 (file)
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -350,6 +350,12 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev)
        setup_timer(&ndev->rs_timer, addrconf_rs_timer,
                    (unsigned long)ndev);
        memcpy(&ndev->cnf, dev_net(dev)->ipv6.devconf_dflt, sizeof(ndev->cnf));
+
+       if (ndev->cnf.stable_secret.initialized)
+               ndev->addr_gen_mode = IN6_ADDR_GEN_MODE_STABLE_PRIVACY;
+       else
+               ndev->addr_gen_mode = IN6_ADDR_GEN_MODE_EUI64;
+
        ndev->cnf.mtu6 = dev->mtu;
        ndev->cnf.sysctl = NULL;
        ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl);
@@ -418,6 +424,7 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev)
        if (err) {
                ipv6_mc_destroy_dev(ndev);
                del_timer(&ndev->regen_timer);
+               snmp6_unregister_dev(ndev);
                goto err_release;
        }
        /* protected by rtnl_lock */
@@ -2454,7 +2461,7 @@ ok:
 #ifdef CONFIG_IPV6_OPTIMISTIC_DAD
                        if (in6_dev->cnf.optimistic_dad &&
                            !net->ipv6.devconf_all->forwarding && sllao)
-                               addr_flags = IFA_F_OPTIMISTIC;
+                               addr_flags |= IFA_F_OPTIMISTIC;
 #endif
 
                        /* Do not allow to create too much of autoconfigured
@@ -3641,7 +3648,7 @@ static void addrconf_dad_work(struct work_struct *w)
 
        /* send a neighbour solicitation for our addr */
        addrconf_addr_solict_mult(&ifp->addr, &mcaddr);
-       ndisc_send_ns(ifp->idev->dev, &ifp->addr, &mcaddr, &in6addr_any, NULL);
+       ndisc_send_ns(ifp->idev->dev, &ifp->addr, &mcaddr, &in6addr_any);
 out:
        in6_ifa_put(ifp);
        rtnl_unlock();