Ejemplo n.º 1
0
void _handle_reply_rs(_nib_onl_entry_t *host)
{
    gnrc_netif_t *netif = gnrc_netif_get_by_pid(_nib_onl_get_if(host));

    assert(netif != NULL);
    gnrc_netif_acquire(netif);
    if (gnrc_netif_is_rtr_adv(netif)) {
        _snd_rtr_advs(netif, &host->ipv6, false);
    }
    gnrc_netif_release(netif);
}
Ejemplo n.º 2
0
void _handle_rereg_address(const ipv6_addr_t *addr)
{
    gnrc_netif_t *netif = gnrc_netif_get_by_ipv6_addr(addr);
    _nib_dr_entry_t *router = _nib_drl_get_dr();
    const bool router_reachable = (router != NULL) &&
                                  _is_reachable(router->next_hop);

    if (router_reachable && (netif != NULL)) {
        assert((unsigned)netif->pid == _nib_onl_get_if(router->next_hop));
        DEBUG("nib: Re-registering %s",
              ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)));
        DEBUG(" with upstream router %s\n",
              ipv6_addr_to_str(addr_str, &router->next_hop->ipv6,
                               sizeof(addr_str)));
        _snd_ns(&router->next_hop->ipv6, netif, addr, &router->next_hop->ipv6);
    }
    else {
        DEBUG("nib: Couldn't re-register %s, no current router found or address "
              "wasn't assigned to any interface anymore.\n",
              ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)));
    }
    if (netif != NULL) {
        int idx = gnrc_netif_ipv6_addr_idx(netif, addr);

        if (router_reachable &&
            (_is_valid(netif, idx) || (_is_tentative(netif, idx) &&
             (gnrc_netif_ipv6_addr_dad_trans(netif, idx) <
              SIXLOWPAN_ND_REG_TRANSMIT_NUMOF)))) {
            uint32_t retrans_time;

            if (_is_valid(netif, idx)) {
                retrans_time = SIXLOWPAN_ND_MAX_RS_SEC_INTERVAL * MS_PER_SEC;
            }
            else {
                retrans_time = netif->ipv6.retrans_time;
                /* increment encoded retransmission count */
                netif->ipv6.addrs_flags[idx]++;
            }
            _evtimer_add(&netif->ipv6.addrs[idx], GNRC_IPV6_NIB_REREG_ADDRESS,
                         &netif->ipv6.addrs_timers[idx], retrans_time);
        }
        else {
            netif->ipv6.rs_sent = 0;
            _handle_search_rtr(netif);
        }
    }
}