/* Service routines creating virtual interfaces: DVMRP tunnels and PIMREG */
+static void ipmr_del_tunnel(struct net_device *dev, struct vifctl *v)
+{
+ dev_close(dev);
+
+ dev = __dev_get_by_name(&init_net, "tunl0");
+ if (dev) {
+ struct ifreq ifr;
+ mm_segment_t oldfs;
+ struct ip_tunnel_parm p;
+
+ memset(&p, 0, sizeof(p));
+ p.iph.daddr = v->vifc_rmt_addr.s_addr;
+ p.iph.saddr = v->vifc_lcl_addr.s_addr;
+ p.iph.version = 4;
+ p.iph.ihl = 5;
+ p.iph.protocol = IPPROTO_IPIP;
+ sprintf(p.name, "dvmrp%d", v->vifc_vifi);
+ ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
+
+ oldfs = get_fs(); set_fs(KERNEL_DS);
+ dev->do_ioctl(dev, &ifr, SIOCDELTUNNEL);
+ set_fs(oldfs);
+ }
+}
+
static
struct net_device *ipmr_new_tunnel(struct vifctl *v)
{
if (dev_open(dev))
goto failure;
+ dev_hold(dev);
}
}
return dev;
if (dev_open(dev))
goto failure;
+ dev_hold(dev);
+
return dev;
failure:
/*
* Delete a VIF entry
+ * @notify: Set to 1, if the caller is a notifier_call
*/
-static int vif_delete(int vifi)
+static int vif_delete(int vifi, int notify)
{
struct vif_device *v;
struct net_device *dev;
ip_rt_multicast_event(in_dev);
}
- if (v->flags&(VIFF_TUNNEL|VIFF_REGISTER))
+ if (v->flags&(VIFF_TUNNEL|VIFF_REGISTER) && !notify)
unregister_netdevice(dev);
dev_put(dev);
struct vif_device *v = &vif_table[vifi];
struct net_device *dev;
struct in_device *in_dev;
+ int err;
/* Is vif busy ? */
if (VIF_EXISTS(vifi))
dev = ipmr_reg_vif();
if (!dev)
return -ENOBUFS;
+ err = dev_set_allmulti(dev, 1);
+ if (err) {
+ unregister_netdevice(dev);
+ dev_put(dev);
+ return err;
+ }
break;
#endif
case VIFF_TUNNEL:
dev = ipmr_new_tunnel(vifc);
if (!dev)
return -ENOBUFS;
+ err = dev_set_allmulti(dev, 1);
+ if (err) {
+ ipmr_del_tunnel(dev, vifc);
+ dev_put(dev);
+ return err;
+ }
break;
case 0:
dev = ip_dev_find(&init_net, vifc->vifc_lcl_addr.s_addr);
if (!dev)
return -EADDRNOTAVAIL;
- dev_put(dev);
+ err = dev_set_allmulti(dev, 1);
+ if (err) {
+ dev_put(dev);
+ return err;
+ }
break;
default:
return -EINVAL;
if ((in_dev = __in_dev_get_rtnl(dev)) == NULL)
return -EADDRNOTAVAIL;
IPV4_DEVCONF(in_dev->cnf, MC_FORWARDING)++;
- dev_set_allmulti(dev, +1);
ip_rt_multicast_event(in_dev);
/*
/* And finish update writing critical data */
write_lock_bh(&mrt_lock);
- dev_hold(dev);
v->dev=dev;
#ifdef CONFIG_IP_PIMSM
if (v->flags&VIFF_REGISTER)
*/
for (i=0; i<maxvif; i++) {
if (!(vif_table[i].flags&VIFF_STATIC))
- vif_delete(i);
+ vif_delete(i, 0);
}
/*
if (optname==MRT_ADD_VIF) {
ret = vif_add(&vif, sk==mroute_socket);
} else {
- ret = vif_delete(vif.vifc_vifi);
+ ret = vif_delete(vif.vifc_vifi, 0);
}
rtnl_unlock();
return ret;
v=&vif_table[0];
for (ct=0;ct<maxvif;ct++,v++) {
if (v->dev==dev)
- vif_delete(ct);
+ vif_delete(ct, 1);
}
return NOTIFY_DONE;
}
{
struct ip_options * opt = &(IPCB(skb)->opt);
- IP_INC_STATS_BH(IPSTATS_MIB_OUTFORWDATAGRAMS);
+ IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
if (unlikely(opt->optlen))
ip_forward_options(skb);
to blackhole.
*/
- IP_INC_STATS_BH(IPSTATS_MIB_FRAGFAILS);
+ IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_FRAGFAILS);
ip_rt_put(rt);
goto out_free;
}
* Setup for IP multicast routing
*/
-void __init ip_mr_init(void)
+int __init ip_mr_init(void)
{
+ int err;
+
mrt_cachep = kmem_cache_create("ip_mrt_cache",
sizeof(struct mfc_cache),
0, SLAB_HWCACHE_ALIGN|SLAB_PANIC,
NULL);
+ if (!mrt_cachep)
+ return -ENOMEM;
+
setup_timer(&ipmr_expire_timer, ipmr_expire_process, 0);
- register_netdevice_notifier(&ip_mr_notifier);
+ err = register_netdevice_notifier(&ip_mr_notifier);
+ if (err)
+ goto reg_notif_fail;
#ifdef CONFIG_PROC_FS
- proc_net_fops_create(&init_net, "ip_mr_vif", 0, &ipmr_vif_fops);
- proc_net_fops_create(&init_net, "ip_mr_cache", 0, &ipmr_mfc_fops);
+ err = -ENOMEM;
+ if (!proc_net_fops_create(&init_net, "ip_mr_vif", 0, &ipmr_vif_fops))
+ goto proc_vif_fail;
+ if (!proc_net_fops_create(&init_net, "ip_mr_cache", 0, &ipmr_mfc_fops))
+ goto proc_cache_fail;
#endif
+ return 0;
+reg_notif_fail:
+ kmem_cache_destroy(mrt_cachep);
+#ifdef CONFIG_PROC_FS
+proc_vif_fail:
+ unregister_netdevice_notifier(&ip_mr_notifier);
+proc_cache_fail:
+ proc_net_remove(&init_net, "ip_mr_vif");
+#endif
+ return err;
}