int get_port_and_connect_to_it(t_client *client, int idx, char *arg)
{
char ip[16];
char *ptr;
int port;
int porth;
port = 0;
arg[idx] = '\0';
strncpy(ip, arg, 16);
porth = atoi(arg + idx + 1) * 256;
ptr = strtok(arg + idx + 1, ",");
ptr = strtok(NULL, ",");
if (ptr != NULL)
port = porth + atoi(ptr);
if (handle_data_connection(client, port, ip) != 0)
printf("port fail\n");
else
printf("port ok\n");
return (0);
}
/*
* This function is called whenever an uIP event occurs (e.g. when
* a new connection is established, new data arrives, sent data is
* acknowledged, data needs to be retransmitted, etc.), from the
* uip_tcp_appcall() callback.
*/
void ftpd_appcall( void )
{
u16_t i;
//PRINT_Log("\r\nftpd_appcall\r\n");
/*
* First we must check that it is the port we are listening on as
* this function will be called for all events on all connections.
*/
if (uip_conn->lport == HTONS(FTPD_CONTROL_PORT))
{
ftpd_appstate_t *s = (ftpd_appstate_t *)uip_conn->appdata;
/*
* If a new connection we need to check for a few possibilities.
*/
if (uip_connected())
{
PRINT_Log("\r\nNew command connection from IP Address %d.%d.%d.%d:%d",
uip_ipaddr1(uip_conn->ripaddr), uip_ipaddr2(uip_conn->ripaddr),
uip_ipaddr3(uip_conn->ripaddr), uip_ipaddr4(uip_conn->ripaddr),
ntohs(uip_conn->rport));
if (!driveAttached)
{
PRINT_Log("\r\nNo drive attached!");
// Initialise the ProtoSocket for the 421 message
PSOCK_INIT(&s->ps, NULL, 0);
// Set the flag to cause it to be sent
s->resp421_flag = TRUE;
}
else
{
// find a new FTP server structure
for (i = 0; i < NUM_FTP_DAEMONS; i++)
{
if (FTP_UNUSED == ftpd_state[i].state)
{
break;
}
}
// Check if we found a free ftpd_state
if (NUM_FTP_DAEMONS == i)
{
PRINT_Log("\r\nNo daemons available!");
// Initialise the ProtoSocket for the 421 message
PSOCK_INIT(&s->ps, NULL, 0);
// Set the flag to cause it to be sent
s->resp421_flag = TRUE;
}
else
{
PRINT_Log("\r\nFound unused deamon %d", i);
s->ftpd_state_ptr = &ftpd_state[i];
// Initialise the FTP Daemon state
ftpd_state[i].state = LOGGED_OUT;
ftpd_state[i].data_conn = NULL;
//ftpd_state[i].clientip = uip_conn->ripaddr;
memcpy(ftpd_state[i].clientip,uip_conn->ripaddr,sizeof(uip_ipaddr_t));
ftpd_state[i].clientport = FTPC_DATA_PORT;
// Clear the command index down
ftpd_state[i].cmd_index = CMD_INDEX_IDLE;
// Reset the directory pointer
//ftpd_state[i].pCurrent_dir = NULL;
// Clear the current path
strcpy(ftpd_state[i].Current_path, "/");
// Setup the PASV information
ftpd_state[i].pasvflag = FALSE;
// Initialise the ProtoSockets and ProtoThread used by the command parser
PSOCK_INIT(&ftpd_state[i].cmdpsin, ftpd_state[i].cmdinputbuffer, CMD_BUFFER_SIZE);
PT_INIT(&ftpd_state[i].cmdpt);
// Clear the 421 response flag
s->resp421_flag = FALSE;
}
}
}
else if (uip_closed() || uip_aborted() || uip_timedout())
{
PRINT_Log("\r\nCommand connection closing");
if (s->ftpd_state_ptr)
{
PRINT_Log(" for daemon %d", s->ftpd_state_ptr->pasvport - PASV_PORT_OFFSET);
// Free up the FTP daemon
s->ftpd_state_ptr->state = FTP_UNUSED;
s->ftpd_state_ptr = NULL;
}
}
if (s->resp421_flag)
{
send_421_response(s);
}
else if (s->ftpd_state_ptr)
{
handle_cmd_input(s->ftpd_state_ptr);
handle_cmd_output(s->ftpd_state_ptr);
}
}
else
{
//PRINT_Log("\r\nSearch though all the FTPD Structures and see if this one of our data connections.");
/*
* Search though all the FTPD Structures and see if this one of our data connections.
*/
u16_t i;
for (i = 0; i < NUM_FTP_DAEMONS; i++)
{
if (ftpd_state[i].data_conn == uip_conn)
{
if (uip_connected())
{
PRINT_Log("\r\nNew active data connection for daemon %d to IP Address %d.%d.%d.%d:%d", i,
uip_ipaddr1(uip_conn->ripaddr), uip_ipaddr2(uip_conn->ripaddr),
uip_ipaddr3(uip_conn->ripaddr), uip_ipaddr4(uip_conn->ripaddr),
ntohs(uip_conn->rport));
PSOCK_INIT(&ftpd_state[i].dataps, ftpd_state[i].datainputbuffer, DATA_BUFFER_SIZE);
// Move the state on as required
if (WAITING_FOR_CONNECT == ftpd_state[i].state)
{
ftpd_state[i].state = CONNECT_OK;
}
}
else if (uip_closed() || uip_aborted() || uip_timedout())
{
PRINT_Log("\r\nData connection closing for daemon %d", i);
if (uip_closed() && (TRANSFER_RECV == ftpd_state[i].state))
{
// There may be data in this last packet
handle_data_connection(&ftpd_state[i]);
// Closing of the connection in a RECV state indicates end of file
#if 1
CloseFile(&ftpd_state[i]);
#endif
//close the file in here
PRINT_Log("\r\nFinished file receive for daemon %d", i);
ftpd_state[i].state = TRANSFER_DONE;
}
else if((TRANSFER_LIST == ftpd_state[i].state) || (TRANSFER_SEND == ftpd_state[i].state) || (TRANSFER_RECV == ftpd_state[i].state))
{
PRINT_Log("\r\nAborting data transfer for daemon %d", i);
ftpd_state[i].state = TRANSFER_ABORT;
}
ftpd_state[i].data_conn = NULL;
}
if (ftpd_state[i].data_conn)
{
handle_data_connection(&ftpd_state[i]);
}
// Leave the loop early
break;
}
else
{
// Check for a new connection in Passive mode
if(ftpd_state[i].pasvflag && uip_connected() && (ntohs(uip_conn->lport) == ftpd_state[i].pasvport))
{
PRINT_Log("\r\nNew passive data connection for daemon %d from IP Address %d.%d.%d.%d:%d", i,
uip_ipaddr1(uip_conn->ripaddr), uip_ipaddr2(uip_conn->ripaddr),
uip_ipaddr3(uip_conn->ripaddr), uip_ipaddr4(uip_conn->ripaddr),
ntohs(uip_conn->rport));
ftpd_state[i].data_conn = uip_conn;
PSOCK_INIT(&ftpd_state[i].dataps, ftpd_state[i].datainputbuffer, DATA_BUFFER_SIZE);
// Move the state on as required
if (WAITING_FOR_CONNECT == ftpd_state[i].state)
{
ftpd_state[i].state = CONNECT_OK;
}
handle_data_connection(&ftpd_state[i]);
// Leave the loop early
break;
}
}
}
}
}
