-
-out:
- kfree_skb(__skb);
-}
-
-/*
- * Netlink socket input callback - dequeues the skbs and calls the
- * main netlink receiving function.
- */
-static void cn_input(struct sock *sk, int len)
-{
- struct sk_buff *skb;
-
- while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL)
- cn_rx_skb(skb);
-}
-
-/*
- * Notification routing.
- *
- * Gets id and checks if there are notification request for it's idx
- * and val. If there are such requests notify the listeners with the
- * given notify event.
- *
- */
-static void cn_notify(struct cb_id *id, u32 notify_event)
-{
- struct cn_ctl_entry *ent;
-
- mutex_lock(¬ify_lock);
- list_for_each_entry(ent, ¬ify_list, notify_entry) {
- int i;
- struct cn_notify_req *req;
- struct cn_ctl_msg *ctl = ent->msg;
- int idx_found, val_found;
-
- idx_found = val_found = 0;
-
- req = (struct cn_notify_req *)ctl->data;
- for (i = 0; i < ctl->idx_notify_num; ++i, ++req) {
- if (id->idx >= req->first &&
- id->idx < req->first + req->range) {
- idx_found = 1;
- break;
- }
- }
-
- for (i = 0; i < ctl->val_notify_num; ++i, ++req) {
- if (id->val >= req->first &&
- id->val < req->first + req->range) {
- val_found = 1;
- break;
- }
- }
-
- if (idx_found && val_found) {
- struct cn_msg m = { .ack = notify_event, };
-
- memcpy(&m.id, id, sizeof(m.id));
- cn_netlink_send(&m, ctl->group, GFP_KERNEL);
- }
- }
- mutex_unlock(¬ify_lock);