C++ (Cpp) nr_route_frame Beispiele

Beispiel #1

Datei: nr_out.c Projekt: flwh/Alcatel_OT_985_kernel

void nr_transmit_buffer(struct sock *sk, struct sk_buff *skb)
{
	struct nr_sock *nr = nr_sk(sk);
	unsigned char *dptr;

	/*
	 *	Add the protocol byte and network header.
	 */
	dptr = skb_push(skb, NR_NETWORK_LEN);

	memcpy(dptr, &nr->source_addr, AX25_ADDR_LEN);
	dptr[6] &= ~AX25_CBIT;
	dptr[6] &= ~AX25_EBIT;
	dptr[6] |= AX25_SSSID_SPARE;
	dptr += AX25_ADDR_LEN;

	memcpy(dptr, &nr->dest_addr, AX25_ADDR_LEN);
	dptr[6] &= ~AX25_CBIT;
	dptr[6] |= AX25_EBIT;
	dptr[6] |= AX25_SSSID_SPARE;
	dptr += AX25_ADDR_LEN;

	*dptr++ = sysctl_netrom_network_ttl_initialiser;

	if (!nr_route_frame(skb, NULL)) {
		kfree_skb(skb);
		nr_disconnect(sk, ENETUNREACH);
	}
}

Beispiel #2

Datei: nr_dev.c Projekt: 0xroot/Blackphone-BP1-Kernel

static netdev_tx_t nr_xmit(struct sk_buff *skb, struct net_device *dev)
{
	struct net_device_stats *stats = &dev->stats;
	unsigned int len = skb->len;

	if (!nr_route_frame(skb, NULL)) {
		kfree_skb(skb);
		stats->tx_errors++;
		return NETDEV_TX_OK;
	}

	stats->tx_packets++;
	stats->tx_bytes += len;

	return NETDEV_TX_OK;
}

Beispiel #3

Datei: nr_subr.c Projekt: nos1609/Chrono_Kernel-1

/*
 * This routine is called to send an error reply.
 */
void __nr_transmit_reply(struct sk_buff *skb, int mine, unsigned char cmdflags)
{
	struct sk_buff *skbn;
	unsigned char *dptr;
	int len;

	len = NR_NETWORK_LEN + NR_TRANSPORT_LEN + 1;

	if ((skbn = alloc_skb(len, GFP_ATOMIC)) == NULL)
		return;

	skb_reserve(skbn, 0);

	dptr = skb_put(skbn, NR_NETWORK_LEN + NR_TRANSPORT_LEN);

	skb_copy_from_linear_data_offset(skb, 7, dptr, AX25_ADDR_LEN);
	dptr[6] &= ~AX25_CBIT;
	dptr[6] &= ~AX25_EBIT;
	dptr[6] |= AX25_SSSID_SPARE;
	dptr += AX25_ADDR_LEN;

	skb_copy_from_linear_data(skb, dptr, AX25_ADDR_LEN);
	dptr[6] &= ~AX25_CBIT;
	dptr[6] |= AX25_EBIT;
	dptr[6] |= AX25_SSSID_SPARE;
	dptr += AX25_ADDR_LEN;

	*dptr++ = sysctl_netrom_network_ttl_initialiser;

	if (mine) {
		*dptr++ = 0;
		*dptr++ = 0;
		*dptr++ = skb->data[15];
		*dptr++ = skb->data[16];
	} else {
		*dptr++ = skb->data[15];
		*dptr++ = skb->data[16];
		*dptr++ = 0;
		*dptr++ = 0;
	}

	*dptr++ = cmdflags;
	*dptr++ = 0;

	if (!nr_route_frame(skbn, NULL))
		kfree_skb(skbn);
}

Beispiel #4

Datei: nr_subr.c Projekt: JBTech/ralink_rt5350

/*
 * This routine is called when a Connect Acknowledge with the Choke Flag
 * set is needed to refuse a connection.
 */
void nr_transmit_refusal(struct sk_buff *skb, int mine)
{
	struct sk_buff *skbn;
	unsigned char *dptr;
	int len;

	len = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + NR_NETWORK_LEN + NR_TRANSPORT_LEN + 1;

	if ((skbn = alloc_skb(len, GFP_ATOMIC)) == NULL)
		return;

	skb_reserve(skbn, AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN);

	dptr = skb_put(skbn, NR_NETWORK_LEN + NR_TRANSPORT_LEN);

	memcpy(dptr, skb->data + 7, AX25_ADDR_LEN);
	dptr[6] &= ~AX25_CBIT;
	dptr[6] &= ~AX25_EBIT;
	dptr[6] |= AX25_SSSID_SPARE;
	dptr += AX25_ADDR_LEN;
	
	memcpy(dptr, skb->data + 0, AX25_ADDR_LEN);
	dptr[6] &= ~AX25_CBIT;
	dptr[6] |= AX25_EBIT;
	dptr[6] |= AX25_SSSID_SPARE;
	dptr += AX25_ADDR_LEN;

	*dptr++ = sysctl_netrom_network_ttl_initialiser;

	if (mine) {
		*dptr++ = 0;
		*dptr++ = 0;
		*dptr++ = skb->data[15];
		*dptr++ = skb->data[16];
	} else {
		*dptr++ = skb->data[15];
		*dptr++ = skb->data[16];
		*dptr++ = 0;
		*dptr++ = 0;
	}

	*dptr++ = NR_CONNACK | NR_CHOKE_FLAG;
	*dptr++ = 0;

	if (!nr_route_frame(skbn, NULL))
		kfree_skb(skbn);
}

Beispiel #5

Datei: nr_dev.c Projekt: 3sOx/asuswrt-merlin

static int nr_xmit(struct sk_buff *skb, struct net_device *dev)
{
	struct nr_private *nr = netdev_priv(dev);
	struct net_device_stats *stats = &nr->stats;
	unsigned int len = skb->len;

	if (!nr_route_frame(skb, NULL)) {
		kfree_skb(skb);
		stats->tx_errors++;
		return 0;
	}

	stats->tx_packets++;
	stats->tx_bytes += len;

	return 0;
}

Beispiel #6

Datei: nr_subr.c Projekt: liexusong/linux2.0-comment

/*
 * This routine is called when a Connect Acknowledge with the Choke Flag
 * set is needed to refuse a connection.
 */
void nr_transmit_dm(struct sk_buff *skb)
{
	struct sk_buff *skbn;
	unsigned char *dptr;
	int len;

	len = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + NR_NETWORK_LEN + NR_TRANSPORT_LEN + 1;

	if ((skbn = alloc_skb(len, GFP_ATOMIC)) == NULL)
		return;

	skb_reserve(skbn, AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN);

	dptr = skb_put(skbn, NR_NETWORK_LEN + NR_TRANSPORT_LEN);

	memcpy(dptr, skb->data + 7, AX25_ADDR_LEN);
	dptr[6] &= ~LAPB_C;
	dptr[6] &= ~LAPB_E;
	dptr[6] |= SSSID_SPARE;
	dptr += AX25_ADDR_LEN;
	
	memcpy(dptr, skb->data + 0, AX25_ADDR_LEN);
	dptr[6] &= ~LAPB_C;
	dptr[6] |= LAPB_E;
	dptr[6] |= SSSID_SPARE;
	dptr += AX25_ADDR_LEN;

	*dptr++ = nr_default.ttl;

	*dptr++ = skb->data[15];
	*dptr++ = skb->data[16];
	*dptr++ = 0;
	*dptr++ = 0;
	*dptr++ = NR_CONNACK | NR_CHOKE_FLAG;
	*dptr++ = 0;

	skbn->free = 1;
	skbn->sk   = NULL;

	if (!nr_route_frame(skbn, NULL))
		kfree_skb(skbn, FREE_WRITE);
}