void pn_sock_hash(struct sock *sk)
{
struct hlist_head *hlist = pn_hash_list(pn_sk(sk)->sobject);
mutex_lock(&pnsocks.lock);
sk_add_node_rcu(sk, hlist);
mutex_unlock(&pnsocks.lock);
}
void pn_sock_hash(struct sock *sk)
{
struct hlist_head *hlist = pn_hash_list(pn_sk(sk)->sobject);
spin_lock_bh(&pnsocks.lock);
sk_add_node(sk, hlist);
spin_unlock_bh(&pnsocks.lock);
}
/*
* Find address based on socket address, match only certain fields.
* Also grab sock if it was found. Remember to sock_put it later.
*/
struct sock *pn_find_sock_by_sa(struct net *net, const struct sockaddr_pn *spn)
{
struct hlist_node *node;
struct sock *sknode;
struct sock *rval = NULL;
u16 obj = pn_sockaddr_get_object(spn);
u8 res = spn->spn_resource;
struct hlist_head *hlist = pn_hash_list(obj);
spin_lock_bh(&pnsocks.lock);
sk_for_each(sknode, node, hlist) {
struct pn_sock *pn = pn_sk(sknode);
BUG_ON(!pn->sobject); /* unbound socket */
if (!net_eq(sock_net(sknode), net))
continue;
if (pn_port(obj)) {
/* Look up socket by port */
if (pn_port(pn->sobject) != pn_port(obj))
continue;
} else {
/* If port is zero, look up by resource */
if (pn->resource != res)
continue;
}
if (pn_addr(pn->sobject) &&
pn_addr(pn->sobject) != pn_addr(obj))
continue;
rval = sknode;
sock_hold(sknode);
break;
}
spin_unlock_bh(&pnsocks.lock);
return rval;
}