void nic_connect(void)
{
/* This part of code is required only if using the interrupt while accessing the SPI
attachInterrupt(0, zg_isr, LOW);
*/
zg_setpolling();
// Include debug functionalities, if required
#if(VNET_DEBUG)
// Print address
VNET_LOG("(vNet)WiFi Connecting");
VNET_LOG("\r\n");
#endif
// Connect to a Wifi network or in AdHoc mode
while(zg_get_conn_state() != 1) {
zg_drv_process();
}
// Include debug functionalities, if required
#if(VNET_DEBUG)
// Print address
VNET_LOG("(vNet)WiFi Connected");
VNET_LOG("\r\n");
#endif
}
uint8_t UserMode_Get(U16 addr, U8* ip_addr, U8* p_port)
{
U8 i=0;
// Verify that the entry was not yet saved
for(i=0;i<UMODE_USERS;i++)
if(in_vNet_Addresses[i]==addr)
break;
// If the vNet address wasn't found, return
if(i==UMODE_USERS)
return 0;
// Return the IP address pointer
memmove(ip_addr, in_IP_Addresses + i*(IPADDRESS_BYTES), IPADDRESS_BYTES);
memmove(p_port, in_P_Port + i*(PPORT_BYTES), PPORT_BYTES);
// If the IP address is in black list skip
#if(VNET_USERLOCKDOWN)
for(i=0;i<UMODE_USERS;i++)
{
if((*(ip_addr) == *(blacklist_IP_Addresses+i)) && (*(ip_addr+1) == *(blacklist_IP_Addresses+i+1)) &&
(*(ip_addr+2) == *(blacklist_IP_Addresses+i+2)) && (*(ip_addr+3) == *(blacklist_IP_Addresses+i+3)))
{
#if(VNET_DEBUG)
VNET_LOG(F("(vNet)<Blacklist>\r\n"));
#endif
return 0;
}
}
#endif
return 1;
}
void vNet_SetAddress_M1(uint16_t addr)
{
uint8_t ip_addr[4], mac_addr[6];
// Translate and set the address
eth_vNettoIP(addr, &ip_addr[0]);
eth_SetIPAddress(&ip_addr[0]);
// Set the MAC Address
#if(AUTO_MAC)
eth_vNettoMAC(addr, mac_addr);
W5x00.setMACAddress(mac_addr);
#else
W5x00.setMACAddress((uint8_t*)MAC_ADDRESS);
#endif
// Set the IP
W5x00.setIPAddress(stack.ip);
W5x00.setGatewayIp(stack.gateway);
W5x00.setSubnetMask(stack.subnetmask);
vNet_Begin_M1(UDP_SOCK); // Start listen on socket
// Include debug functionalities, if required
#if(VNET_DEBUG)
uint8_t addrval[6];
// Print MAC address
W5x00.getMACAddress(addrval);
VNET_LOG("(MAC)<");
for(U8 i=0; i<6; i++)
{
VNET_LOG(addrval[i],HEX);
VNET_LOG(",");
}
VNET_LOG(">\r\n");
// Print IP address
W5x00.getIPAddress(addrval);
VNET_LOG("(IP)<");
for(U8 i=0; i<4; i++)
{
VNET_LOG(addrval[i],HEX);
VNET_LOG(",");
}
VNET_LOG(">\r\n");
#endif
}
u8_t nic_poll(void)
{
u16_t packetLength;
// Connection lost, retry
if(zg_get_conn_state() != 1) {
// Include debug functionalities, if required
#if(VNET_DEBUG)
// Print address
VNET_LOG("(vNet)WiFi Connection lost, retry");
VNET_LOG("\r\n");
#endif
while(zg_get_conn_state() != 1){
zg_drv_process();
}
}
// This method place the incoming data directly into the uIP buffer
packetLength = zg_get_rx_status();
// Process the in/out data from the Wifi controller
zg_drv_process();
// If there are no incoming data
if(!packetLength)
return packetLength = 0;
// If the lenght exceed the buffer size
if(packetLength > UIP_BUFSIZE)
return packetLength = 0;
// Return the lenght
return packetLength;
}
void UserMode_Init()
{
for(U8 i=0;i<(UMODE_USERS*IPADDRESS_BYTES);i++)
{
in_IP_Addresses[i]=0;
blacklist_IP_Addresses[i]=0;
}
// If there were previous saved vNet address from User Interfaces
#if(USEEEPROM)
if(Return_ID()==STORE__DEFAULTID)
Return_UserModeAddresses(in_vNet_Addresses, UMODE_USERS);
#endif
#if(VNET_DEBUG)
VNET_LOG(F("(vNet)<USERMODE><0x"));
for(U8 i=0;i<(UMODE_USERS);i++)
{
VNET_LOG(in_vNet_Addresses[i],HEX);
VNET_LOG(F("|0x"));
}
VNET_LOG(F(">\r\n"));
#endif
}
void UserMode_Record(U16 addr, U8* ip_addr, U8* p_port)
{
U8 i=0;
// Verify that the entry was not yet saved or find the first available index
for(i=0;i<UMODE_USERS;i++)
if((in_vNet_Addresses[i]==addr) || (in_vNet_Addresses[i]==0x0000))
break;
// Accept new incoming connection only just after the boot
#if(VNET_USERLOCKDOWN)
if(!JustBooted())
{
// Update the IP address for existing entries
if(in_vNet_Addresses[i]==addr)
{
// Refresh the IP address
memmove(in_IP_Addresses + i*(IPADDRESS_BYTES), ip_addr, IPADDRESS_BYTES); // Store the IP address
memmove(in_P_Port + i*(PPORT_BYTES), p_port, PPORT_BYTES); // Store the IP port
}
else
{
//Record the IP address in the black list
for(i=0;i<(UMODE_USERS);i++)
if((blacklist_IP_Addresses[i*4] == 0) ||
((*(ip_addr) == *(blacklist_IP_Addresses+i)) && (*(ip_addr+1) == *(blacklist_IP_Addresses+i+1)) &&
(*(ip_addr+2) == *(blacklist_IP_Addresses+i+2)) && (*(ip_addr+3) == *(blacklist_IP_Addresses+i+3))))
break;
// If the table is full start from the first entry
if(i==UMODE_USERS)
i=(last_entry_blacklist+1)%UMODE_USERS;
last_entry_blacklist=i;
// Store the IP address in the blacklist
blacklist_IP_Addresses[i] = ip_addr[0];
blacklist_IP_Addresses[i+1] = ip_addr[1];
blacklist_IP_Addresses[i+2] = ip_addr[2];
blacklist_IP_Addresses[i+3] = ip_addr[3];
}
#if(VNET_DEBUG)
VNET_LOG(F("(vNet)<Lockdwn>"));
#endif
return;
}
#endif
// If the table is full, use the oldest entry
if(i==UMODE_USERS)
i=(last_entry+1)%UMODE_USERS;
// Record the last entry index
last_entry = i;
// If is a new vNet address, record it
if((in_vNet_Addresses[i]!=addr))
{
in_vNet_Addresses[i] = addr;
#if(USEEEPROM)
Store_UserModeAddresses(in_vNet_Addresses, UMODE_USERS);
Store_Commit();
#endif
#if(VNET_DEBUG)
VNET_LOG(F("(vNet)<USERMODE><0x"));
for(U8 i=0;i<(UMODE_USERS);i++)
{
VNET_LOG(in_vNet_Addresses[i],HEX);
VNET_LOG(F("|0x"));
}
VNET_LOG(F(">\r\n"));
#endif
}
// Refresh the IP address
memmove(in_IP_Addresses + i*(IPADDRESS_BYTES), ip_addr, IPADDRESS_BYTES); // Store the IP address
memmove(in_P_Port + i*(PPORT_BYTES), p_port, PPORT_BYTES); // Store the IP port
}
