C++ (Cpp) net_if_get_link_addr Beispiele

Beispiel #1

Datei: ieee802154_uart_pipe.c Projekt: milinddeore/zephyr

static bool received_dest_addr_matched(u8_t *rx_buffer)
{
	struct upipe_context *upipe = upipe_dev->driver_data;

	/* Check destination PAN Id */
	if (memcmp(&rx_buffer[PAN_ID_OFFSET],
		   dev_pan_id, PAN_ID_SIZE) != 0 &&
	    memcmp(&rx_buffer[PAN_ID_OFFSET],
		   BROADCAST_ADDRESS, PAN_ID_SIZE) != 0) {
		return false;
	}

	/* Check destination address */
	switch (rx_buffer[DEST_ADDR_TYPE_OFFSET] & DEST_ADDR_TYPE_MASK) {
	case DEST_ADDR_TYPE_SHORT:
		/* First check if the destination is broadcast */
		/* If not broadcast, check if lenght and address matches */
		if (memcmp(&rx_buffer[DEST_ADDR_OFFSET],
			   BROADCAST_ADDRESS,
			   SHORT_ADDRESS_SIZE) != 0 &&
		    (net_if_get_link_addr(upipe->iface)->len !=
		     SHORT_ADDRESS_SIZE ||
		     memcmp(&rx_buffer[DEST_ADDR_OFFSET],
			    dev_short_addr,
			    SHORT_ADDRESS_SIZE) != 0)) {
			return false;
		}
	break;

	case DEST_ADDR_TYPE_EXTENDED:
		/* If not broadcast, check if lenght and address matches */
		if (net_if_get_link_addr(upipe->iface)->len !=
		    EXTENDED_ADDRESS_SIZE ||
		    memcmp(&rx_buffer[DEST_ADDR_OFFSET],
			   dev_ext_addr, EXTENDED_ADDRESS_SIZE) != 0) {
			return false;
		}
		break;

	default:
		return false;
	}

	return true;
}

Beispiel #2

Datei: main.c Projekt: bboozzoo/zephyr

static void setup_eth_header(struct net_if *iface, struct net_pkt *pkt,
			     struct net_eth_addr *hwaddr, u16_t type)
{
	struct net_eth_hdr *hdr = (struct net_eth_hdr *)net_pkt_ll(pkt);

	memcpy(&hdr->dst.addr, hwaddr, sizeof(struct net_eth_addr));
	memcpy(&hdr->src.addr, net_if_get_link_addr(iface)->addr,
	       sizeof(struct net_eth_addr));

	hdr->type = htons(type);
}

Beispiel #3

Datei: main.c Projekt: bboozzoo/zephyr

static inline struct net_pkt *prepare_arp_reply(struct net_if *iface,
						struct net_pkt *req,
						struct net_eth_addr *addr)
{
	struct net_pkt *pkt;
	struct net_buf *frag;
	struct net_arp_hdr *hdr;
	struct net_eth_hdr *eth;

	pkt = net_pkt_get_reserve_tx(sizeof(struct net_eth_hdr), K_FOREVER);
	if (!pkt) {
		goto fail;
	}

	frag = net_pkt_get_frag(pkt, K_FOREVER);
	if (!frag) {
		goto fail;
	}

	net_pkt_frag_add(pkt, frag);
	net_pkt_set_iface(pkt, iface);

	hdr = NET_ARP_HDR(pkt);
	eth = NET_ETH_HDR(pkt);

	eth->type = htons(NET_ETH_PTYPE_ARP);

	memset(&eth->dst.addr, 0xff, sizeof(struct net_eth_addr));
	memcpy(&eth->src.addr, net_if_get_link_addr(iface)->addr,
	       sizeof(struct net_eth_addr));

	hdr->hwtype = htons(NET_ARP_HTYPE_ETH);
	hdr->protocol = htons(NET_ETH_PTYPE_IP);
	hdr->hwlen = sizeof(struct net_eth_addr);
	hdr->protolen = sizeof(struct in_addr);
	hdr->opcode = htons(NET_ARP_REPLY);

	memcpy(&hdr->dst_hwaddr.addr, &eth->src.addr,
	       sizeof(struct net_eth_addr));
	memcpy(&hdr->src_hwaddr.addr, addr,
	       sizeof(struct net_eth_addr));

	net_ipaddr_copy(&hdr->dst_ipaddr, &NET_ARP_HDR(req)->src_ipaddr);
	net_ipaddr_copy(&hdr->src_ipaddr, &NET_ARP_HDR(req)->dst_ipaddr);

	net_buf_add(frag, sizeof(struct net_arp_hdr));

	return pkt;

fail:
	net_pkt_unref(pkt);
	return NULL;
}