C++ (Cpp) _is_me Examples

Example #1

File: gnrc_sixlowpan_nd_router.c Project: daniel-k/RIOT

bool gnrc_sixlowpan_nd_router_abr_older(sixlowpan_nd_opt_abr_t *abr_opt)
{
    gnrc_sixlowpan_nd_router_abr_t *abr;
    uint32_t version;

    if (abr_opt->len != SIXLOWPAN_ND_OPT_ABR_LEN) {
        /* invalid option received */
        return true;
    }

    if (_is_me(&abr_opt->braddr)) {
        return false;
    }

    abr = _get_abr(&abr_opt->braddr);

    if (abr == NULL) {
        return false;
    }

    version = (uint32_t)byteorder_ntohs(abr_opt->vlow);
    version |= ((uint32_t)byteorder_ntohs(abr_opt->vhigh)) << 16;

    return (version < abr->version);
}

Example #2

File: gnrc_sixlowpan_nd_router.c Project: JelmerT/RIOT

/* router-only functions from net/gnrc/sixlowpan/nd.h */
void gnrc_sixlowpan_nd_opt_abr_handle(kernel_pid_t iface, ndp_rtr_adv_t *rtr_adv, int sicmpv6_size,
                                      sixlowpan_nd_opt_abr_t *abr_opt)
{
    uint16_t opt_offset = 0;
    uint8_t *buf = (uint8_t *)(rtr_adv + 1);
    gnrc_sixlowpan_nd_router_abr_t *abr;
    timex_t t = { 0, 0 };

    if (_is_me(&abr_opt->braddr)) {
        return;
    }
    /* validity and version was checked in previously called
     * gnrc_sixlowpan_nd_router_abr_older() */
    abr = _get_abr(&abr_opt->braddr);

    if (abr == NULL) {
        return;
    }

    abr->ltime = byteorder_ntohs(abr_opt->ltime);

    if (abr->ltime == 0) {
        abr->ltime = GNRC_SIXLOWPAN_ND_BORDER_ROUTER_DEFAULT_LTIME;
        return;
    }

    sicmpv6_size -= sizeof(ndp_rtr_adv_t);

    while (sicmpv6_size > 0) {
        ndp_opt_t *opt = (ndp_opt_t *)(buf + opt_offset);

        switch (opt->type) {
            case NDP_OPT_PI:
                _add_prefix(iface, abr, (ndp_opt_pi_t *)opt);

            case NDP_OPT_6CTX:
                _add_ctx(abr, (sixlowpan_nd_opt_6ctx_t *)opt);

            default:
                break;
        }

        opt_offset += (opt->len * 8);
        sicmpv6_size -= (opt->len * 8);
    }

    abr->version = (uint32_t)byteorder_ntohs(abr_opt->vlow);
    abr->version |= ((uint32_t)byteorder_ntohs(abr_opt->vhigh)) << 16;
    abr->addr.u64[0] = abr_opt->braddr.u64[0];
    abr->addr.u64[1] = abr_opt->braddr.u64[1];
    memset(abr->ctxs, 0, sizeof(abr->ctxs));
    abr->prfs = NULL;

    t.seconds = abr->ltime * 60;

    xtimer_remove(&abr->ltimer);
    abr->ltimer_msg.type = GNRC_SIXLOWPAN_ND_MSG_ABR_TIMEOUT;
    abr->ltimer_msg.content.ptr = (char *) abr;
    xtimer_set_msg(&abr->ltimer, (uint32_t) timex_uint64(t), &abr->ltimer_msg, gnrc_ipv6_pid);
}