static bool convert_mbed_addr_to_lwip(ip_addr_t *out, const nsapi_addr_t *in)
{
#if LWIP_IPV6
if (in->version == NSAPI_IPv6) {
IP_SET_TYPE(out, IPADDR_TYPE_V6);
MEMCPY(ip_2_ip6(out), in->bytes, sizeof(ip6_addr_t));
return true;
}
#if !LWIP_IPV4
/* For bind() and other purposes, need to accept "null" of other type */
/* (People use IPv4 0.0.0.0 as a general null) */
if (in->version == NSAPI_UNSPEC ||
(in->version == NSAPI_IPv4 && all_zeros(in->bytes, 4))) {
ip_addr_set_zero_ip6(out);
return true;
}
#endif
#endif
#if LWIP_IPV4
if (in->version == NSAPI_IPv4) {
IP_SET_TYPE(out, IPADDR_TYPE_V4);
MEMCPY(ip_2_ip4(out), in->bytes, sizeof(ip4_addr_t));
return true;
}
#if !LWIP_IPV6
/* For symmetry with above, accept IPv6 :: as a general null */
if (in->version == NSAPI_UNSPEC ||
(in->version == NSAPI_IPv6 && all_zeros(in->bytes, 16))) {
ip_addr_set_zero_ip4(out);
return true;
}
#endif
#endif
#if LWIP_IPV4 && LWIP_IPV6
if (in->version == NSAPI_UNSPEC) {
#if IP_VERSION_PREF == PREF_IPV4
ip_addr_set_zero_ip4(out);
#else
ip_addr_set_zero_ip6(out);
#endif
return true;
}
#endif
return false;
}
/**
* Add a network interface to the list of lwIP netifs.
*
* @param netif a pre-allocated netif structure
* @param ipaddr IP address for the new netif
* @param netmask network mask for the new netif
* @param gw default gateway IP address for the new netif
* @param state opaque data passed to the new netif
* @param init callback function that initializes the interface
* @param input callback function that is called to pass
* ingress packets up in the protocol layer stack.
*
* @return netif, or NULL if failed.
*/
struct netif *
netif_add(struct netif *netif,
#if LWIP_IPV4
const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw,
#endif /* LWIP_IPV4 */
void *state, netif_init_fn init, netif_input_fn input)
{
#if LWIP_IPV6
u32_t i;
#endif
LWIP_ASSERT("No init function given", init != NULL);
/* reset new interface configuration state */
#if LWIP_IPV4
ip_addr_set_zero_ip4(&netif->ip_addr);
ip_addr_set_zero_ip4(&netif->netmask);
ip_addr_set_zero_ip4(&netif->gw);
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) {
ip_addr_set_zero_ip6(&netif->ip6_addr[i]);
netif_ip6_addr_set_state(netif, i, IP6_ADDR_INVALID);
}
netif->output_ip6 = netif_null_output_ip6;
#endif /* LWIP_IPV6 */
NETIF_SET_CHECKSUM_CTRL(netif, NETIF_CHECKSUM_ENABLE_ALL);
netif->flags = 0;
#if LWIP_DHCP
/* netif not under DHCP control by default */
netif->dhcp = NULL;
#ifdef LWIP_ESP8266
netif->dhcps_pcb = NULL;
#endif
#endif /* LWIP_DHCP */
#if LWIP_AUTOIP
/* netif not under AutoIP control by default */
netif->autoip = NULL;
#endif /* LWIP_AUTOIP */
#if LWIP_IPV6_AUTOCONFIG
#ifdef LWIP_ESP8266
//#if 0
netif->ip6_autoconfig_enabled = 1;
#else
/* IPv6 address autoconfiguration not enabled by default */
netif->ip6_autoconfig_enabled = 0;
#endif
#endif /* LWIP_IPV6_AUTOCONFIG */
#if LWIP_IPV6_SEND_ROUTER_SOLICIT
netif->rs_count = LWIP_ND6_MAX_MULTICAST_SOLICIT;
#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */
#if LWIP_IPV6_DHCP6
/* netif not under DHCPv6 control by default */
netif->dhcp6 = NULL;
#endif /* LWIP_IPV6_DHCP6 */
#if LWIP_NETIF_STATUS_CALLBACK
netif->status_callback = NULL;
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif->link_callback = NULL;
#endif /* LWIP_NETIF_LINK_CALLBACK */
#if LWIP_IGMP
netif->igmp_mac_filter = NULL;
#endif /* LWIP_IGMP */
#if LWIP_IPV6 && LWIP_IPV6_MLD
netif->mld_mac_filter = NULL;
#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
#if ENABLE_LOOPBACK
netif->loop_first = NULL;
netif->loop_last = NULL;
#endif /* ENABLE_LOOPBACK */
/* remember netif specific state information data */
netif->state = state;
netif->num = netif_num++;
netif->input = input;
NETIF_SET_HWADDRHINT(netif, NULL);
#if ENABLE_LOOPBACK && LWIP_LOOPBACK_MAX_PBUFS
netif->loop_cnt_current = 0;
#endif /* ENABLE_LOOPBACK && LWIP_LOOPBACK_MAX_PBUFS */
#if LWIP_IPV4
netif_set_addr(netif, ipaddr, netmask, gw);
#endif /* LWIP_IPV4 */
/* call user specified initialization function for netif */
if (init(netif) != ERR_OK) {
return NULL;
}
/* add this netif to the list */
netif->next = netif_list;
netif_list = netif;
mib2_netif_added(netif);
#if LWIP_IGMP
/* start IGMP processing */
if (netif->flags & NETIF_FLAG_IGMP) {
igmp_start(netif);
}
#endif /* LWIP_IGMP */
LWIP_DEBUGF(NETIF_DEBUG, ("netif: added interface %c%c IP",
netif->name[0], netif->name[1]));
#if LWIP_IPV4
LWIP_DEBUGF(NETIF_DEBUG, (" addr "));
ip4_addr_debug_print(NETIF_DEBUG, ipaddr);
LWIP_DEBUGF(NETIF_DEBUG, (" netmask "));
ip4_addr_debug_print(NETIF_DEBUG, netmask);
LWIP_DEBUGF(NETIF_DEBUG, (" gw "));
ip4_addr_debug_print(NETIF_DEBUG, gw);
#endif /* LWIP_IPV4 */
LWIP_DEBUGF(NETIF_DEBUG, ("\n"));
return netif;
}
/**
* @brief DHCP Process
* @param argument: network interface
* @retval None
*/
void DHCP_thread(void const * argument)
{
struct netif *netif = (struct netif *) argument;
ip_addr_t ipaddr;
ip_addr_t netmask;
ip_addr_t gw;
struct dhcp *dhcp;
for (;;)
{
switch (DHCP_state)
{
case DHCP_START:
{
ip_addr_set_zero_ip4(&netif->ip_addr);
ip_addr_set_zero_ip4(&netif->netmask);
ip_addr_set_zero_ip4(&netif->gw);
dhcp_start(netif);
DHCP_state = DHCP_WAIT_ADDRESS;
}
break;
case DHCP_WAIT_ADDRESS:
{
if (dhcp_supplied_address(netif))
{
DHCP_state = DHCP_ADDRESS_ASSIGNED;
}
else
{
dhcp = (struct dhcp *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP);
/* DHCP timeout */
if (dhcp->tries > MAX_DHCP_TRIES)
{
DHCP_state = DHCP_TIMEOUT;
/* Stop DHCP */
dhcp_stop(netif);
/* Static address used */
IP_ADDR4(&ipaddr, IP_ADDR0 ,IP_ADDR1 , IP_ADDR2 , IP_ADDR3 );
IP_ADDR4(&netmask, NETMASK_ADDR0, NETMASK_ADDR1, NETMASK_ADDR2, NETMASK_ADDR3);
IP_ADDR4(&gw, GW_ADDR0, GW_ADDR1, GW_ADDR2, GW_ADDR3);
netif_set_addr(netif, ip_2_ip4(&ipaddr), ip_2_ip4(&netmask), ip_2_ip4(&gw));
}
}
}
break;
case DHCP_LINK_DOWN:
{
/* Stop DHCP */
dhcp_stop(netif);
DHCP_state = DHCP_OFF;
}
break;
default: break;
}
/* wait 250 ms */
osDelay(250);
}
}