C++ (Cpp) ng_ipv6_hdr_is_ipv6_hdr 예제들

예제 #1

파일: ng_slip.c 프로젝트: 4dahalibut/RIOT

/* SLIP receive handler */
static void _slip_receive(ng_slip_dev_t *dev, size_t bytes)
{
    ng_netif_hdr_t *hdr;
    ng_netreg_entry_t *sendto;
    ng_pktsnip_t *pkt, *netif_hdr;

    pkt = ng_pktbuf_add(NULL, NULL, bytes, NG_NETTYPE_UNDEF);

    if (pkt == NULL) {
        DEBUG("slip: no space left in packet buffer\n");
        return;
    }

    netif_hdr = ng_pktbuf_add(pkt, NULL, sizeof(ng_netif_hdr_t),
                              NG_NETTYPE_NETIF);

    if (netif_hdr == NULL) {
        DEBUG("slip: no space left in packet buffer\n");
        ng_pktbuf_release(pkt);
        return;
    }

    hdr = netif_hdr->data;
    ng_netif_hdr_init(hdr, 0, 0);
    hdr->if_pid = thread_getpid();

    if (ringbuffer_get(dev->in_buf, pkt->data, bytes) != bytes) {
        DEBUG("slip: could not read %zu bytes from ringbuffer\n", bytes);
        ng_pktbuf_release(pkt);
        return;
    }

#ifdef MODULE_NG_IPV6
    if ((pkt->size >= sizeof(ng_ipv6_hdr_t)) && ng_ipv6_hdr_is_ipv6_hdr(pkt->data)) {
        pkt->type = NG_NETTYPE_IPV6;
    }
#endif

    sendto = ng_netreg_lookup(pkt->type, NG_NETREG_DEMUX_CTX_ALL);

    if (sendto == NULL) {
        DEBUG("slip: unable to forward packet of type %i\n", pkt->type);
        ng_pktbuf_release(pkt);
    }

    ng_pktbuf_hold(pkt, ng_netreg_num(pkt->type, NG_NETREG_DEMUX_CTX_ALL) - 1);

    while (sendto != NULL) {
        DEBUG("slip: sending pkt %p to PID %u\n", pkt, sendto->pid);
        ng_netapi_receive(sendto->pid, pkt);
        sendto = ng_netreg_getnext(sendto);
    }
}

예제 #2

파일: ng_pktdump.c 프로젝트: JiapengLi/RIOT

static void _dump_ipv6_hdr(ng_ipv6_hdr_t *hdr)
{
    char addr_str[NG_IPV6_ADDR_MAX_STR_LEN];

    if (ng_ipv6_hdr_is_ipv6_hdr(hdr)) {
        printf("illegal version field: %" PRIu8 "\n", ng_ipv6_hdr_get_version(hdr));
    }

    printf("traffic class: 0x%02" PRIx8 " (ECN: 0x%" PRIx8 ", DSCP: 0x%02" PRIx8 ")\n",
           ng_ipv6_hdr_get_tc(hdr), ng_ipv6_hdr_get_tc_ecn(hdr),
           ng_ipv6_hdr_get_tc_dscp(hdr));
    printf("flow label: 0x%05" PRIx32 "\n", ng_ipv6_hdr_get_fl(hdr));
    printf("length: %" PRIu16 "  next header: %" PRIu8 "  hop limit: %" PRIu8 "\n",
           byteorder_ntohs(hdr->len), hdr->nh, hdr->hl);
    printf("source address: %s\n", ng_ipv6_addr_to_str(addr_str, &hdr->src,
            sizeof(addr_str)));
    printf("destination address: %s\n", ng_ipv6_addr_to_str(addr_str, &hdr->dst,
            sizeof(addr_str)));

}