static void addrconf_join_solict(struct device *dev, struct in6_addr *addr)
{
struct in6_addr maddr;
if (dev->flags&(IFF_LOOPBACK|IFF_NOARP))
return;
#ifndef CONFIG_IPV6_NO_PB
addrconf_addr_solict_mult_old(addr, &maddr);
ipv6_dev_mc_inc(dev, &maddr);
#endif
#ifdef CONFIG_IPV6_EUI64
addrconf_addr_solict_mult_new(addr, &maddr);
ipv6_dev_mc_inc(dev, &maddr);
#endif
}
void ipv6_mc_init_dev(struct inet6_dev *idev)
{
struct in6_addr maddr;
/* Add all-nodes address. */
ipv6_addr_all_nodes(&maddr);
ipv6_dev_mc_inc(idev->dev, &maddr);
}
static int pndisc_constructor(struct pneigh_entry *n)
{
struct in6_addr *addr = (struct in6_addr*)&n->key;
struct in6_addr maddr;
struct net_device *dev = n->dev;
if (dev == NULL || __in6_dev_get(dev) == NULL)
return -EINVAL;
#ifndef CONFIG_IPV6_NO_PB
addrconf_addr_solict_mult_old(addr, &maddr);
ipv6_dev_mc_inc(dev, &maddr);
#endif
#ifdef CONFIG_IPV6_EUI64
addrconf_addr_solict_mult_new(addr, &maddr);
ipv6_dev_mc_inc(dev, &maddr);
#endif
return 0;
}
int ipv6_sock_mc_join(struct sock *sk, int ifindex, struct in6_addr *addr)
{
struct net_device *dev = NULL;
struct ipv6_mc_socklist *mc_lst;
struct ipv6_pinfo *np = &sk->net_pinfo.af_inet6;
int err;
if (!(ipv6_addr_type(addr) & IPV6_ADDR_MULTICAST))
return -EINVAL;
mc_lst = sock_kmalloc(sk, sizeof(struct ipv6_mc_socklist), GFP_KERNEL);
if (mc_lst == NULL)
return -ENOMEM;
mc_lst->next = NULL;
memcpy(&mc_lst->addr, addr, sizeof(struct in6_addr));
mc_lst->ifindex = ifindex;
if (ifindex == 0) {
struct rt6_info *rt;
rt = rt6_lookup(addr, NULL, 0, 0);
if (rt) {
dev = rt->rt6i_dev;
dev_hold(dev);
dst_release(&rt->u.dst);
}
} else
dev = dev_get_by_index(ifindex);
if (dev == NULL) {
sock_kfree_s(sk, mc_lst, sizeof(*mc_lst));
return -ENODEV;
}
/*
* now add/increase the group membership on the device
*/
err = ipv6_dev_mc_inc(dev, addr);
if (err) {
sock_kfree_s(sk, mc_lst, sizeof(*mc_lst));
dev_put(dev);
return err;
}
write_lock_bh(&ipv6_sk_mc_lock);
mc_lst->next = np->ipv6_mc_list;
np->ipv6_mc_list = mc_lst;
write_unlock_bh(&ipv6_sk_mc_lock);
dev_put(dev);
return 0;
}
static void addrconf_join_solict(struct net_device *dev, struct in6_addr *addr)
{
struct in6_addr maddr;
if (dev->flags&(IFF_LOOPBACK|IFF_NOARP))
return;
addrconf_addr_solict_mult(addr, &maddr);
ipv6_dev_mc_inc(dev, &maddr);
}
static int pndisc_constructor(struct pneigh_entry *n)
{
struct in6_addr *addr = (struct in6_addr*)&n->key;
struct in6_addr maddr;
struct net_device *dev = n->dev;
if (dev == NULL || __in6_dev_get(dev) == NULL)
return -EINVAL;
addrconf_addr_solict_mult(addr, &maddr);
ipv6_dev_mc_inc(dev, &maddr);
return 0;
}
void ipv6_mc_up(struct inet6_dev *idev)
{
struct ifmcaddr6 *i;
struct in6_addr maddr;
/* Add all-nodes address. */
ipv6_addr_all_nodes(&maddr);
ipv6_dev_mc_inc(idev->dev, &maddr);
/* Install multicast list, except for all-nodes (already installed) */
for (i = idev->mc_list; i; i=i->if_next)
igmp6_group_added(i);
}
