/** Clean up ARP table entries */
static void
etharp_free_entry(int i)
{
/* remove from SNMP ARP index tree */
mib2_remove_arp_entry(arp_table[i].netif, &arp_table[i].ipaddr);
/* and empty packet queue */
if (arp_table[i].q != NULL) {
/* remove all queued packets */
LWIP_DEBUGF(ETHARP_DEBUG, ("etharp_free_entry: freeing entry %"U16_F", packet queue %p.\n", (u16_t)i, (void *)(arp_table[i].q)));
free_etharp_q(arp_table[i].q);
arp_table[i].q = NULL;
}
/* recycle entry for re-use */
arp_table[i].state = ETHARP_STATE_EMPTY;
#ifdef LWIP_DEBUG
/* for debugging, clean out the complete entry */
arp_table[i].ctime = 0;
arp_table[i].netif = NULL;
ip4_addr_set_zero(&arp_table[i].ipaddr);
arp_table[i].ethaddr = ethzero;
#endif /* LWIP_DEBUG */
}
/**
* 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
ip4_addr_set_zero(&netif->ip_addr);
ip4_addr_set_zero(&netif->netmask);
ip4_addr_set_zero(&netif->gw);
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) {
ip6_addr_set_zero(&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->flags = 0;
#if LWIP_DHCP
/* netif not under DHCP control by default */
netif->dhcp = NULL;
#endif /* LWIP_DHCP */
#if LWIP_AUTOIP
/* netif not under AutoIP control by default */
netif->autoip = NULL;
#endif /* LWIP_AUTOIP */
#if LWIP_IPV6_AUTOCONFIG
/* IPv6 address autoconfiguration not enabled by default */
netif->ip6_autoconfig_enabled = 0;
#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;
snmp_inc_iflist();
#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;
}
/* This function initializes all network interfaces */
static void
msvc_netif_init(void)
{
#if LWIP_IPV4 && USE_ETHERNET
ip4_addr_t ipaddr, netmask, gw;
#endif /* LWIP_IPV4 && USE_ETHERNET */
#if USE_SLIPIF
u8_t num_slip1 = 0;
#if LWIP_IPV4
ip4_addr_t ipaddr_slip1, netmask_slip1, gw_slip1;
#endif
#if USE_SLIPIF > 1
u8_t num_slip2 = 1;
#if LWIP_IPV4
ip4_addr_t ipaddr_slip2, netmask_slip2, gw_slip2;
#endif
#endif /* USE_SLIPIF > 1 */
#endif /* USE_SLIPIF */
#if USE_DHCP || USE_AUTOIP
err_t err;
#endif
#if USE_PPP
const char *username = NULL, *password = NULL;
#ifdef PPP_USERNAME
username = PPP_USERNAME;
#endif
#ifdef PPP_PASSWORD
password = PPP_PASSWORD;
#endif
printf("ppp_connect: COM%d\n", (int)sio_idx);
#if PPPOS_SUPPORT
ppp_sio = sio_open(sio_idx);
if (ppp_sio == NULL) {
printf("sio_open error\n");
} else {
ppp = pppos_create(&ppp_netif, ppp_output_cb, pppLinkStatusCallback, NULL);
if (ppp == NULL) {
printf("pppos_create error\n");
} else {
ppp_set_auth(ppp, PPPAUTHTYPE_ANY, username, password);
ppp_connect(ppp, 0);
}
}
#endif /* PPPOS_SUPPORT */
#endif /* USE_PPP */
#if USE_ETHERNET
#if LWIP_IPV4
#define NETIF_ADDRS &ipaddr, &netmask, &gw,
ip4_addr_set_zero(&gw);
ip4_addr_set_zero(&ipaddr);
ip4_addr_set_zero(&netmask);
#if USE_ETHERNET_TCPIP
#if USE_DHCP
printf("Starting lwIP, local interface IP is dhcp-enabled\n");
#elif USE_AUTOIP
printf("Starting lwIP, local interface IP is autoip-enabled\n");
#else /* USE_DHCP */
LWIP_PORT_INIT_GW(&gw);
LWIP_PORT_INIT_IPADDR(&ipaddr);
LWIP_PORT_INIT_NETMASK(&netmask);
printf("Starting lwIP, local interface IP is %s\n", ip4addr_ntoa(&ipaddr));
#endif /* USE_DHCP */
#endif /* USE_ETHERNET_TCPIP */
#else /* LWIP_IPV4 */
#define NETIF_ADDRS
printf("Starting lwIP, IPv4 disable\n");
#endif /* LWIP_IPV4 */
#if NO_SYS
netif_set_default(netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, netif_input));
#else /* NO_SYS */
netif_set_default(netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, tcpip_input));
#endif /* NO_SYS */
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&netif, 1);
printf("ip6 linklocal address: ");
ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, netif_ip6_addr(&netif, 0));
printf("\n");
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&netif, status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&netif, link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
#if USE_ETHERNET_TCPIP
#if LWIP_AUTOIP
autoip_set_struct(&netif, &netif_autoip);
#endif /* LWIP_AUTOIP */
#if LWIP_DHCP
dhcp_set_struct(&netif, &netif_dhcp);
#endif /* LWIP_DHCP */
netif_set_up(&netif);
#if USE_DHCP
err = dhcp_start(&netif);
LWIP_ASSERT("dhcp_start failed", err == ERR_OK);
#elif USE_AUTOIP
err = autoip_start(&netif);
LWIP_ASSERT("autoip_start failed", err == ERR_OK);
#endif /* USE_DHCP */
#else /* USE_ETHERNET_TCPIP */
/* Use ethernet for PPPoE only */
netif.flags &= ~(NETIF_FLAG_ETHARP | NETIF_FLAG_IGMP); /* no ARP */
netif.flags |= NETIF_FLAG_ETHERNET; /* but pure ethernet */
#endif /* USE_ETHERNET_TCPIP */
#if USE_PPP && PPPOE_SUPPORT
/* start PPPoE after ethernet netif is added! */
ppp = pppoe_create(&ppp_netif, &netif, NULL, NULL, pppLinkStatusCallback, NULL);
if (ppp == NULL) {
printf("pppos_create error\n");
} else {
ppp_set_auth(ppp, PPPAUTHTYPE_ANY, username, password);
ppp_connect(ppp, 0);
}
#endif /* USE_PPP && PPPOE_SUPPORT */
#endif /* USE_ETHERNET */
#if USE_SLIPIF
#if LWIP_IPV4
#define SLIP1_ADDRS &ipaddr_slip1, &netmask_slip1, &gw_slip1,
LWIP_PORT_INIT_SLIP1_IPADDR(&ipaddr_slip1);
LWIP_PORT_INIT_SLIP1_GW(&gw_slip1);
LWIP_PORT_INIT_SLIP1_NETMASK(&netmask_slip1);
printf("Starting lwIP slipif, local interface IP is %s\n", ip4addr_ntoa(&ipaddr_slip1));
#else
#define SLIP1_ADDRS
printf("Starting lwIP slipif\n");
#endif
#if defined(SIO_USE_COMPORT) && SIO_USE_COMPORT
num_slip1++; /* COM ports cannot be 0-based */
#endif
netif_add(&slipif1, SLIP1_ADDRS &num_slip1, slipif_init, ip_input);
#if !USE_ETHERNET
netif_set_default(&slipif1);
#endif /* !USE_ETHERNET */
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&slipif1, 1);
printf("SLIP ip6 linklocal address: ");
ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, netif_ip6_addr(&slipif1, 0));
printf("\n");
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&slipif1, status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&slipif1, link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
netif_set_up(&slipif1);
#if USE_SLIPIF > 1
#if LWIP_IPV4
#define SLIP2_ADDRS &ipaddr_slip2, &netmask_slip2, &gw_slip2,
LWIP_PORT_INIT_SLIP2_IPADDR(&ipaddr_slip2);
LWIP_PORT_INIT_SLIP2_GW(&gw_slip2);
LWIP_PORT_INIT_SLIP2_NETMASK(&netmask_slip2);
printf("Starting lwIP SLIP if #2, local interface IP is %s\n", ip4addr_ntoa(&ipaddr_slip2));
#else
#define SLIP2_ADDRS
printf("Starting lwIP SLIP if #2\n");
#endif
#if defined(SIO_USE_COMPORT) && SIO_USE_COMPORT
num_slip2++; /* COM ports cannot be 0-based */
#endif
netif_add(&slipif2, SLIP2_ADDRS &num_slip2, slipif_init, ip_input);
#if LWIP_IPV6
netif_create_ip6_linklocal_address(&slipif1, 1);
printf("SLIP2 ip6 linklocal address: ");
ip6_addr_debug_print(0xFFFFFFFF & ~LWIP_DBG_HALT, netif_ip6_addr(&slipif2, 0));
printf("\n");
#endif /* LWIP_IPV6 */
#if LWIP_NETIF_STATUS_CALLBACK
netif_set_status_callback(&slipif2, status_callback);
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
netif_set_link_callback(&slipif2, link_callback);
#endif /* LWIP_NETIF_LINK_CALLBACK */
netif_set_up(&slipif2);
#endif /* USE_SLIPIF > 1*/
#endif /* USE_SLIPIF */
}
