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Phonet: deliver broadcast packets to broadcast sockets 

Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rémi Denis-Courmont 2009-10-14 00:48:27 +00:00 committed by David S. Miller
parent 67ca0e5fa8
commit f14001fcd7
3 changed files with 28 additions and 0 deletions
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1
include/net/phonet/phonet.h
View File

@ -47,6 +47,7 @@ static inline struct pn_sock *pn_sk(struct sock *sk)
extern const struct proto_ops phonet_dgram_ops;
struct sock *pn_find_sock_by_sa(struct net *net, const struct sockaddr_pn *sa);
void pn_deliver_sock_broadcast(struct net *net, struct sk_buff *skb);
void phonet_get_local_port_range(int *min, int *max);
void pn_sock_hash(struct sock *sk);
void pn_sock_unhash(struct sock *sk);

6
net/phonet/af_phonet.c
View File

@ -369,6 +369,12 @@ static int phonet_rcv(struct sk_buff *skb, struct net_device *dev,
pn_skb_get_dst_sockaddr(skb, &sa);
/* check if this is broadcasted */
if (pn_sockaddr_get_addr(&sa) == PNADDR_BROADCAST) {
pn_deliver_sock_broadcast(net, skb);
goto out;
}
/* check if we are the destination */
if (phonet_address_lookup(net, pn_sockaddr_get_addr(&sa)) == 0) {
/* Phonet packet input */

21
net/phonet/socket.c
View File

@ -94,7 +94,28 @@ struct sock *pn_find_sock_by_sa(struct net *net, const struct sockaddr_pn *spn)
spin_unlock_bh(&pnsocks.lock);
return rval;
}
/* Deliver a broadcast packet (only in bottom-half) */
void pn_deliver_sock_broadcast(struct net *net, struct sk_buff *skb)
{
struct hlist_node *node;
struct sock *sknode;
spin_lock(&pnsocks.lock);
sk_for_each(sknode, node, &pnsocks.hlist) {
struct sk_buff *clone;
if (!net_eq(sock_net(sknode), net))
continue;
if (!sock_flag(sknode, SOCK_BROADCAST))
continue;
clone = skb_clone(skb, GFP_ATOMIC);
if (clone)
sk_receive_skb(sknode, clone, 0);
}
spin_unlock(&pnsocks.lock);
}
void pn_sock_hash(struct sock *sk)