uint8_t ethernet_handle_packet()
{
/* receive packet */
uint16_t packet_size = hal_receive_packet(ethernet_rx_buffer,sizeof(ethernet_rx_buffer));
if(packet_size < 1)
{
return 0;
}
/* get ethernet header */
struct ethernet_header * header = (struct ethernet_header*)ethernet_rx_buffer;
/* remove ethernet header from packet for upper layers */
packet_size -= sizeof(*header);
uint8_t * data = (uint8_t*)(header+1);
/* redirect packet to the proper upper layer */
uint8_t ret=1;
switch(header->type)
{
case HTON16(ETHERNET_TYPE_IP):
ret = ip_handle_packet((struct ip_header*)data,packet_size,(const ethernet_address*)&header->src);
break;
case HTON16(ETHERNET_TYPE_ARP):
ret = arp_handle_packet((struct arp_header*)data,packet_size);
break;
default:
return 0;
}
ethernet_stats.rx_packets++;
return ret;
}
/*read 2 byte*/
int ReadU16(uint32_t *u16, FILE *fp) {
if (fread(u16, 2, 1, fp) != 1) {
return 0;
}
*u16 = HTON16(*u16);
return 1;
}
uint8_t handle_ethernet_packet()
{
uint16_t packet_size = 0;
packet_size = Enc28j60PacketReceive(sizeof(ethernet_buffer), ethernet_buffer);
if (packet_size == 0){
return 0;
}
// char buffer[30];
// sprintf(buffer, "ETH packet length: %" PRIu16, packet_size);
// DBG_DYNAMIC(buffer);
struct ethernet_header * header = (struct ethernet_header*)ethernet_buffer;
packet_size -=sizeof(*header);
uint8_t* data = (uint8_t*)(header +1);
uint8_t ret=1;
switch(header->type)
{
case HTON16(ETHERNET_TYPE_IP):
//DBG_STATIC("Recieved IP packet.");
//IP handle packet
ret = ip_handle_packet((struct ip_header*)data,packet_size,(const ethernet_address*)&header->src);
break;
case HTON16(ETHERNET_TYPE_ARP):
//DBG_STATIC("Recieved ARP packet.");
//ARP handle packet
ret = arp_handle_packet((struct arp_header*)data,packet_size);
// if(ret){
// DBG_STATIC("ARP packet successfully handled.");
// } else {
// DBG_STATIC("ARP packet FAILURE.")
// }
break;
default:
return 0;
}
ethernet_stats.rx_packets++;
return ret;
}
void
send_identity_req(nas_t *nas, nas_sta_t *sta)
{
eapol_header_t eapol;
dbg(nas, "send Identity Request");
memcpy(eapol.eth.ether_shost, &sta->ea, ETHER_ADDR_LEN);
memcpy(eapol.eth.ether_dhost, &nas->ea, ETHER_ADDR_LEN);
eapol.eth.ether_type = HTON16(ETHER_TYPE_802_1X);
eapol.version = sta->eapol_version;
eapol.type = EAPOL_START;
eapol.length = 0;
eapol_dispatch(nas, &eapol, EAPOL_HEADER_LEN);
}
bool ZFile::Write16(int i16)
{
i16=HTON16(i16);
WriteData(&i16,2);
return true;
}
void digilent::init_bulk_packet(bulk_packet* packet, int cmd, int cbit)
{
packet->cmd = (u8)cmd;
packet->cbit = HTON16(cbit);
}