Esempi in C++ (Cpp) per lowpan_frag_queue

Esempio n. 1

File: reassembly.c Progetto: ReneNyffenegger/linux

int lowpan_frag_rcv(struct sk_buff *skb, u8 frag_type)
{
	struct lowpan_frag_queue *fq;
	struct net *net = dev_net(skb->dev);
	struct lowpan_802154_cb *cb = lowpan_802154_cb(skb);
	struct ieee802154_hdr hdr;
	int err;

	if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0)
		goto err;

	err = lowpan_get_cb(skb, frag_type, cb);
	if (err < 0)
		goto err;

	if (frag_type == LOWPAN_DISPATCH_FRAG1) {
		err = lowpan_invoke_frag_rx_handlers(skb);
		if (err == NET_RX_DROP)
			goto err;
	}

	if (cb->d_size > IPV6_MIN_MTU) {
		net_warn_ratelimited("lowpan_frag_rcv: datagram size exceeds MTU\n");
		goto err;
	}

	fq = fq_find(net, cb, &hdr.source, &hdr.dest);
	if (fq != NULL) {
		int ret;

		spin_lock(&fq->q.lock);
		ret = lowpan_frag_queue(fq, skb, frag_type);
		spin_unlock(&fq->q.lock);

		inet_frag_put(&fq->q, &lowpan_frags);
		return ret;
	}

err:
	kfree_skb(skb);
	return -1;
}

Esempio n. 2

File: reassembly.c Progetto: Felixneu/Power-Management

int lowpan_frag_rcv(struct sk_buff *skb, const u8 frag_type)
{
	struct lowpan_frag_queue *fq;
	struct net *net = dev_net(skb->dev);
	struct lowpan_frag_info *frag_info = lowpan_cb(skb);
	struct ieee802154_addr source, dest;
	int err;

	source = mac_cb(skb)->source;
	dest = mac_cb(skb)->dest;

	err = lowpan_get_frag_info(skb, frag_type, frag_info);
	if (err < 0)
		goto err;

	if (frag_info->d_size > IPV6_MIN_MTU) {
		net_warn_ratelimited("lowpan_frag_rcv: datagram size exceeds MTU\n");
		goto err;
	}

	fq = fq_find(net, frag_info, &source, &dest);
	if (fq != NULL) {
		int ret;

		spin_lock(&fq->q.lock);
		ret = lowpan_frag_queue(fq, skb, frag_type);
		spin_unlock(&fq->q.lock);

		inet_frag_put(&fq->q, &lowpan_frags);
		return ret;
	}

err:
	kfree_skb(skb);
	return -1;
}