static void pico_slaacv4_receive_ipconflict(int reason)
{
struct slaacv4_cookie *tmp = &slaacv4_local;
tmp->conflict_nb++;
pico_slaacv4_cancel_timers(tmp);
if(tmp->state == SLAACV4_CLAIMED)
{
if(reason == PICO_ARP_CONFLICT_REASON_CONFLICT)
{
pico_ipv4_link_del(tmp->device, tmp->ip);
}
}
if (tmp->conflict_nb < MAX_CONFLICTS)
{
tmp->state = SLAACV4_CLAIMING;
tmp->probe_try_nb = 0;
tmp->announce_nb = 0;
tmp->ip.addr = pico_slaacv4_getip(tmp->device, (uint8_t)1);
pico_arp_register_ipconflict(&tmp->ip, &tmp->device->eth->mac, pico_slaacv4_receive_ipconflict);
pico_arp_request(tmp->device, &tmp->ip, PICO_ARP_PROBE);
tmp->probe_try_nb++;
tmp->timer = pico_timer_add(PROBE_WAIT * 1000, pico_slaacv4_send_probe_timer, tmp);
if (!tmp->timer) {
slaacv4_dbg("SLAACV4: Failed to start probe timer\n");
tmp->state = SLAACV4_ERROR;
if (tmp->cb != NULL)
tmp->cb(&tmp->ip, PICO_SLAACV4_ERROR);
}
}
else if (tmp->conflict_nb < MAX_CONFLICTS_FAIL)
{
tmp->state = SLAACV4_CLAIMING;
tmp->probe_try_nb = 0;
tmp->announce_nb = 0;
tmp->ip.addr = pico_slaacv4_getip(tmp->device, (uint8_t)1);
pico_arp_register_ipconflict(&tmp->ip, &tmp->device->eth->mac, pico_slaacv4_receive_ipconflict);
tmp->timer = pico_timer_add(RATE_LIMIT_INTERVAL * 1000, pico_slaacv4_send_probe_timer, tmp);
if (!tmp->timer) {
slaacv4_dbg("SLAACV4: Failed to start probe timer\n");
tmp->state = SLAACV4_ERROR;
if (tmp->cb != NULL)
tmp->cb(&tmp->ip, PICO_SLAACV4_ERROR);
}
}
else
{
if (tmp->cb != NULL)
{
pico_hotplug_deregister(tmp->device, &pico_slaacv4_hotplug_cb);
tmp->cb(&tmp->ip, PICO_SLAACV4_ERROR);
}
tmp->state = SLAACV4_ERROR;
}
}
static int pico_dhcp_client_del_cookie(uint32_t xid)
{
struct pico_dhcp_client_cookie test = {
0
}, *found = NULL;
test.xid = xid;
found = pico_tree_findKey(&DHCPCookies, &test);
if (!found)
return -1;
pico_socket_close(found->s);
pico_ipv4_link_del(found->dev, found->address);
pico_tree_delete(&DHCPCookies, found);
pico_free(found);
return 0;
}
