static void
pcapif_check_linkstate(void *netif_ptr)
{
struct netif *netif = (struct netif*)netif_ptr;
struct pcapif_private *pa = (struct pcapif_private*)PCAPIF_GET_STATE_PTR(netif);
enum pcapifh_link_event le;
le = pcapifh_linkstate_get(pa->link_state);
if (pa->last_link_event != le) {
pa->last_link_event = le;
switch (le) {
case PCAPIF_LINKEVENT_UP: {
PCAPIF_NOTIFY_LINKSTATE(netif, netif_set_link_up);
break;
}
case PCAPIF_LINKEVENT_DOWN: {
PCAPIF_NOTIFY_LINKSTATE(netif, netif_set_link_down);
break;
}
case PCAPIF_LINKEVENT_UNKNOWN: /* fall through */
default:
break;
}
}
sys_timeout(PCAPIF_LINKCHECK_INTERVAL_MS, pcapif_check_linkstate, netif);
}
void
pcapif_check_linkstate(void *netif)
{
struct pcapif_private *pa = (struct pcapif_private*)((struct netif *)netif)->state;
enum pcapifh_link_event le;
le = pcapifh_linkstate_get(pa->link_state);
if (pa->last_link_event != le) {
pa->last_link_event = le;
switch (le) {
case PCAPIF_LINKEVENT_UP: {
PCAPIF_NOTIFY_LINKSTATE(netif, netif_set_link_up);
break;
}
case PCAPIF_LINKEVENT_DOWN: {
PCAPIF_NOTIFY_LINKSTATE(netif, netif_set_link_down);
break;
}
}
}
sys_timeout(PCAPIF_LINKCHECK_INTERVAL_MS, pcapif_check_linkstate, netif);
}
/** Low-level initialization: find the correct adapter and initialize it.
*/
static void
pcapif_low_level_init(struct netif *netif)
{
u8_t my_mac_addr[ETHARP_HWADDR_LEN] = LWIP_MAC_ADDR_BASE;
int adapter_num = PACKET_LIB_ADAPTER_NR;
struct pcapif_private *pa;
/* If 'state' is != NULL at this point, we assume it is an 'int' giving
the index of the adapter to use (+ 1 because 0==NULL is invalid).
This can be used to instantiate multiple PCAP drivers. */
if (netif->state != NULL) {
adapter_num = ((int)netif->state) - 1;
if (adapter_num < 0) {
printf("ERROR: invalid adapter index \"%d\"!\n", adapter_num);
LWIP_ASSERT("ERROR initializing network adapter!\n", 0);
return;
}
}
#ifdef PACKET_LIB_GET_ADAPTER_NETADDRESS
ip_addr_t netaddr;
#define GUID_LEN 128
char guid[GUID_LEN + 1];
memset(&guid, 0, sizeof(guid));
PACKET_LIB_GET_ADAPTER_NETADDRESS(&netaddr);
if (get_adapter_index_from_addr((struct in_addr *)&netaddr, guid, GUID_LEN) < 0) {
printf("ERROR initializing network adapter, failed to get GUID for network address %s\n", ip_ntoa(&netaddr));
LWIP_ASSERT("ERROR initializing network adapter, failed to get GUID for network address!", 0);
return;
}
adapter_num = get_adapter_index(guid);
if (adapter_num < 0) {
printf("ERROR finding network adapter with GUID \"%s\"!\n", guid);
LWIP_ASSERT("ERROR finding network adapter with expected GUID!", 0);
return;
}
#else /* PACKET_LIB_GET_ADAPTER_NETADDRESS */
#ifdef PACKET_LIB_ADAPTER_GUID
/* get adapter index for guid string */
adapter_num = get_adapter_index(PACKET_LIB_ADAPTER_GUID);
if (adapter_num < 0) {
printf("ERROR finding network adapter with GUID \"%s\"!\n", PACKET_LIB_ADAPTER_GUID);
LWIP_ASSERT("ERROR initializing network adapter!\n", 0);
return;
}
#endif /* PACKET_LIB_ADAPTER_GUID */
#endif /* PACKET_LIB_GET_ADAPTER_NETADDRESS */
/* Do whatever else is needed to initialize interface. */
pa = pcapif_init_adapter(adapter_num, netif);
if (pa == NULL) {
printf("ERROR initializing network adapter %d!\n", adapter_num);
LWIP_ASSERT("ERROR initializing network adapter!", 0);
return;
}
netif->state = pa;
/* change the MAC address to a unique value
so that multiple ethernetifs are supported */
/* @todo: this does NOT support multiple processes using this adapter! */
my_mac_addr[ETHARP_HWADDR_LEN - 1] += netif->num;
/* Copy MAC addr */
memcpy(&netif->hwaddr, my_mac_addr, ETHARP_HWADDR_LEN);
/* get the initial link state of the selected interface */
#if PCAPIF_HANDLE_LINKSTATE
pa->last_link_event = pcapifh_linkstate_get(pa->link_state);
if (pa->last_link_event == PCAPIF_LINKEVENT_DOWN) {
netif_set_link_down(netif);
} else {
netif_set_link_up(netif);
}
sys_timeout(PCAPIF_LINKCHECK_INTERVAL_MS, pcapif_check_linkstate, netif);
#endif /* PCAPIF_HANDLE_LINKSTATE */
#if PCAPIF_RX_USE_THREAD
pa->rx_run = 1;
pa->rx_running = 1;
sys_thread_new("pcapif_rxthread", pcapif_input_thread, netif, 0, 0);
#endif
LWIP_DEBUGF(NETIF_DEBUG, ("pcapif: eth_addr %02X%02X%02X%02X%02X%02X\n",netif->hwaddr[0],netif->hwaddr[1],netif->hwaddr[2],netif->hwaddr[3],netif->hwaddr[4],netif->hwaddr[5]));
}