Ejemplos de ax25_protocol_function en C++ (Cpp)

Ejemplo n.º 1

Archivo: ax25_in.c Proyecto: Dronevery/JetsonTK1-kernel

/*
 *	This is where all valid I frames are sent to, to be dispatched to
 *	whichever protocol requires them.
 */
int ax25_rx_iframe(ax25_cb *ax25, struct sk_buff *skb)
{
	int (*func)(struct sk_buff *, ax25_cb *);
	volatile int queued = 0;
	unsigned char pid;

	if (skb == NULL) return 0;

	ax25_start_idletimer(ax25);

	pid = *skb->data;

#ifdef CONFIG_INET
	if (pid == AX25_P_IP) {
		/* working around a TCP bug to keep additional listeners
		 * happy. TCP re-uses the buffer and destroys the original
		 * content.
		 */
		struct sk_buff *skbn = skb_copy(skb, GFP_ATOMIC);
		if (skbn != NULL) {
			kfree_skb(skb);
			skb = skbn;
		}

		skb_pull(skb, 1);	/* Remove PID */
		skb->h.raw    = skb->data;
		skb->nh.raw   = skb->data;
		skb->dev      = ax25->ax25_dev->dev;
		skb->pkt_type = PACKET_HOST;
		skb->protocol = htons(ETH_P_IP);
		ip_rcv(skb, skb->dev, NULL);	/* Wrong ptype */
		return 1;
	}
#endif
	if (pid == AX25_P_SEGMENT) {
		skb_pull(skb, 1);	/* Remove PID */
		return ax25_rx_fragment(ax25, skb);
	}

	if ((func = ax25_protocol_function(pid)) != NULL) {
		skb_pull(skb, 1);	/* Remove PID */
		return (*func)(skb, ax25);
	}

	if (ax25->sk != NULL && ax25->ax25_dev->values[AX25_VALUES_CONMODE] == 2) {
		if ((!ax25->pidincl && ax25->sk->sk_protocol == pid) ||
		    ax25->pidincl) {
			if (sock_queue_rcv_skb(ax25->sk, skb) == 0)
				queued = 1;
			else
				ax25->condition |= AX25_COND_OWN_RX_BUSY;
		}
	}

	return queued;
}

Ejemplo n.º 2

Archivo: ax25_in.c Proyecto: shattered/linux-m68k

/*
 *	This is where all valid I frames are sent to, to be dispatched to
 *	whichever protocol requires them.
 */
static int ax25_rx_iframe(ax25_cb *ax25, struct sk_buff *skb)
{
	int (*func)(struct sk_buff *, ax25_cb *);
	struct sk_buff *skbn;
	volatile int queued = 0;
	unsigned char pid;

	if (skb == NULL) return 0;

	ax25->idletimer = ax25->idle;

	pid = *skb->data;

#ifdef CONFIG_INET
	if (pid == AX25_P_IP) {
		if ((skbn = skb_copy(skb, GFP_ATOMIC)) != NULL) {
			kfree_skb(skb, FREE_READ);
			skb = skbn;
		}
		skb_pull(skb, 1);	/* Remove PID */
		skb->h.raw = skb->data;
		ip_rcv(skb, ax25->device, NULL);	/* Wrong ptype */
		return 1;
	}
#endif
	if (pid == AX25_P_SEGMENT) {
		skb_pull(skb, 1);	/* Remove PID */
		return ax25_rx_fragment(ax25, skb);
	}

	if ((func = ax25_protocol_function(pid)) != NULL) {
		skb_pull(skb, 1);	/* Remove PID */
		return (*func)(skb, ax25);
	}

	if (ax25->sk != NULL && ax25_dev_get_value(ax25->device, AX25_VALUES_CONMODE) == 2) {
		if ((!ax25->pidincl && ax25->sk->protocol == pid) || ax25->pidincl) {
			if (sock_queue_rcv_skb(ax25->sk, skb) == 0)
				queued = 1;
			else
				ax25->condition |= AX25_COND_OWN_RX_BUSY;
		}
	}

	return queued;
}