bool tipc_bearer_bcast_support(struct net *net, u32 bearer_id)
{
bool supp = false;
struct tipc_bearer *b;
rcu_read_lock();
b = bearer_get(net, bearer_id);
if (b)
supp = (b->bcast_addr.broadcast == TIPC_BROADCAST_SUPPORT);
rcu_read_unlock();
return supp;
}
/* tipc_bearer_reset_all - reset all links on all bearers
*/
void tipc_bearer_reset_all(struct net *net)
{
struct tipc_bearer *b;
int i;
for (i = 0; i < MAX_BEARERS; i++) {
b = bearer_get(net, i);
if (b)
clear_bit_unlock(0, &b->up);
}
for (i = 0; i < MAX_BEARERS; i++) {
b = bearer_get(net, i);
if (b)
tipc_reset_bearer(net, b);
}
for (i = 0; i < MAX_BEARERS; i++) {
b = bearer_get(net, i);
if (b)
test_and_set_bit_lock(0, &b->up);
}
}
/* tipc_bearer_xmit_skb - sends buffer to destination over bearer
*/
void tipc_bearer_xmit_skb(struct net *net, u32 bearer_id,
struct sk_buff *skb,
struct tipc_media_addr *dest)
{
struct tipc_msg *hdr = buf_msg(skb);
struct tipc_bearer *b;
rcu_read_lock();
b = bearer_get(net, bearer_id);
if (likely(b && (test_bit(0, &b->up) || msg_is_reset(hdr))))
b->media->send_msg(net, skb, b, dest);
else
kfree_skb(skb);
rcu_read_unlock();
}
/* tipc_bearer_xmit() -send buffer to destination over bearer
*/
void tipc_bearer_xmit(struct net *net, u32 bearer_id,
struct sk_buff_head *xmitq,
struct tipc_media_addr *dst)
{
struct tipc_bearer *b;
struct sk_buff *skb, *tmp;
if (skb_queue_empty(xmitq))
return;
rcu_read_lock();
b = bearer_get(net, bearer_id);
if (unlikely(!b))
__skb_queue_purge(xmitq);
skb_queue_walk_safe(xmitq, skb, tmp) {
__skb_dequeue(xmitq);
if (likely(test_bit(0, &b->up) || msg_is_reset(buf_msg(skb))))
b->media->send_msg(net, skb, b, dst);
else
kfree_skb(skb);
}