portmanagermodem.c

这是全套的PPP协议的源码

* port is not found in the list, it returns ERROR.
*
* RETURNS: OK or ERROR
*
* SEE ALSO: pmPortReserve
*/
STATUS pmPortUnreserve
    (
	PORT_CONNECTION_INFO	*pPortUnreserve
    )
    {
	LINK_INFO *pLinkInfo;
		
	pLinkInfo = (LINK_INFO *)SLL_FIRST (&portList);

	while (pLinkInfo != NULL)
		{
		if ((pLinkInfo->bandwidth == pPortUnreserve->port_speed) &&
			(pLinkInfo->port_number == pPortUnreserve->port_number) &&
			(pLinkInfo->port_type == pPortUnreserve->port_type) &&
			(pLinkInfo->isPortUsed == TRUE))
			{
				pLinkInfo->isPortUsed = FALSE;

				/* delete the stack added for the link */

				if (pPortUnreserve->linkStackObj != NULL)
					{
					printf ("\n Stack 0x%x populated  is deleted \n",pPortUnreserve->linkStackObj);
					pfwStackDelete (pPortUnreserve->linkStackObj);
					}

				printf ("Port Unreserved %d and Bandwidth %d \n", \
		             pPortUnreserve->port_number, pPortUnreserve->port_speed);	

				return OK;
			}
		
		pLinkInfo = (LINK_INFO *)SLL_NEXT (pLinkInfo);
		}

	printf ("Port with Port Number %d, Port Type %d and Bandwidth %d \
             is not present/free in the system \n", \
             pPortUnreserve->port_number, pPortUnreserve->port_type, 
			 pPortUnreserve->port_speed);	
	
	return ERROR;
    }

 
/*******************************************************************************
*
* pmPortUnreserveByPort - unreserve the port
*
* This function is used to unreserve a previously reserved port. It takes the 
* portNumber as the input parameter and it searches through the list of ports 
* available in the system. It marks the PORT as unreserved once it finds the 
* matching port type, bandwidth and number and returns OK. If the port is not 
* found in the list, it returns ERROR.
*
* RETURNS: OK or ERROR
*
* SEE ALSO: pmPortUnreserveByPort
*/

STATUS pmPortUnreserveByPort
    (
	USHORT portNumber,
	PFW_STACK_OBJ * pfwStackObj
    )
    {
	LINK_INFO *pLinkInfo;
		
	pLinkInfo = (LINK_INFO *)SLL_FIRST (&portList);

	while (pLinkInfo != NULL)
		{
		if ((pLinkInfo->port_number == portNumber) &&
			(pLinkInfo->isPortUsed == TRUE))
			{
				pLinkInfo->isPortUsed = FALSE;

/* Modem Functionalities */

				modemDisconnectTest (pfwStackObj);

/* Modem Functionalities */

				pfwStackDelete (pfwStackObj); 

				printf ("Port Unreserved %d and Bandwidth %d\n", \
		             pLinkInfo->port_number, pLinkInfo->bandwidth);	
				return OK;
			}
		
		pLinkInfo = (LINK_INFO *)SLL_NEXT (pLinkInfo);
		}

	printf ("Port with Port Number %d, Port Type %d and Bandwidth %d \
             is not present/free in the system\n", \
             pLinkInfo->port_number, pLinkInfo->port_type, 
			 pLinkInfo->bandwidth);	

	return ERROR;
    }


/*******************************************************************************
*
* pmPortToListAdd - add a port to the port list
*
* This function is used to add ports to the port list in the Port Manager. It 
* checks if the list is empty, if it is empty, it initializes the list and then
* adds the port to the list, else it adds the port at the end of the list.
* RETURNS: OK or ERROR
*
* SEE ALSO: pmPortListPrint
*/
STATUS pmPortToListAdd
    (
	LINK_INFO	*pLinkInfo
    )
    {
	if (SLL_EMPTY(&portList) == TRUE)
		{
		sllInit (&portList);
		sllPutAtTail (&portList, (SL_NODE *) pLinkInfo);
		}
	else
		{
		if (pmPortListSearch (pLinkInfo->port_number) == OK)
			sllPutAtTail (&portList, (SL_NODE *) pLinkInfo);
		else
			{
			printf ("Port Number [%u] already exists in the Port Manager \n",pLinkInfo->port_number);
			return (ERROR);
			}
		}
		
	return (OK);
    }

/*******************************************************************************
*
* pmPortListSearch - search port in the port list for the given port number
*
* This function is used to search the port list in the Port Manager for the given
* port number. 
*
* RETURNS: OK/ERROR
*/

LOCAL STATUS pmPortListSearch
    (
	USHORT portNumberToSearch	
    )
    {

	LINK_INFO	*pLinkInfo;

	pLinkInfo = (LINK_INFO *)SLL_FIRST (&portList);

	while (pLinkInfo != NULL)
		{

		if (pLinkInfo->port_number == portNumberToSearch)
			return ERROR;

		pLinkInfo = (LINK_INFO *)SLL_NEXT (pLinkInfo);				

		}
	return (OK);
    }

/*******************************************************************************
*
* pmPortListPrint - display the details of the port list
*
* This function is used to display the details of all the ports in the Port 
* Manager.
*
* RETURNS: N/A
*
* SEE ALSO: 
*/
void pmPortListPrint ( )
    {
	LINK_INFO	*pLinkInfo;

	pLinkInfo = (LINK_INFO *)SLL_FIRST (&portList);
	
	if (pLinkInfo == NULL)
		{
		printf ("\n There are no ports in the port list\n");
		return;
		}

	while (pLinkInfo != NULL)
		{
		printf ("\n\n");
		printf ("********************Port Manager Details********************");
		printf ("\nPort Number is : %d\n", pLinkInfo->port_number);
		if (pLinkInfo->isPortUsed == TRUE)
			printf ("Port usage is  : RESERVED \n");
		else
			printf ("Port usage is  : UNRESERVED \n");

		switch (pLinkInfo->port_type)
			{
			case 0x01:	
				printf ("Port Type is   : %s\n", "ISDN");
				break;
			case 0x02:
				printf ("Port Type is   : %s\n", "X.25");
				break;
			case 0x04:
				printf ("Port Type is   : %s\n", "ANALOG");
				break;
			case 0x08:
				printf ("Port Type is   : %s\n", "SWITCHED DIGITAL");
				break;
			case 0x10:
				printf ("Port Type is   : %s\n", "ISDN DOV");
				break;
			case 0xFF:
				printf ("Port Type is   : %s\n", "DEDICATED");
				break;
			default:
				printf ("Port Type is   : %s\n", "RESERVED");
				break;
			}

		switch (pLinkInfo->port_dial_type)
			{
			case 0x0:	
				printf ("Dial Type is   : %s\n", "PORT_DEDICATED");
				break;
			case 0x1:
				printf ("Dial Type is   : %s\n", "PORT_DIAL_IN");
				break;
			case 0x2:
				printf ("Dial Type is   : %s\n", "PORT_DIAL_OUT");
				break;
			case 0x3:
				printf ("Dial Type is   : %s\n", "PORT_DIAL_IN_AND_OUT");
				break;
			default:
				printf ("Dial Type is   : %s\n", "INVALID");
				break;
			}
		
		switch (pLinkInfo->port_dial_status)
			{
			case 0x0:	
				printf ("Port Dial Status is : %s\n", "PORT_DIAL_DISCONNECTED");
				break;
			case 0x1:
				printf ("Port Dial Status is : %s\n", \
                        "PORT_DIAL_WAITING_CONNECT_CMD");
				break;
			case 0x2:
				printf ("Port Dial Status is : %s\n", "PORT_DIAL_CONNECTING");
				break;
			case 0x3:
				printf ("Port Dial Status is : %s\n", "PORT_DIAL_CONNECTED");
				break;
			case 0x4:
				printf ("Port Dial Status is : %s\n", \
                        "PORT_DIAL_DISCONNECTING");
				break;
			default:
				printf ("Dial Type is   : %s\n", "INVALID");
				break;
			}
		
		
		printf ("Bandwidth supported is : %d\n", pLinkInfo->bandwidth);
		
		printf ("Port LOCAL phone number is : %s\n", \
								pLinkInfo->port_local_phone_number);
		
		printf ("Port REMOTE phone number is : %s\n", \
								pLinkInfo->port_remote_phone_number);
		
		printf ("Port sub address phone number is : %s\n", \
								pLinkInfo->port_subaddress_phone_number);
		
		printf ("Port unique digit phone number length is : %d\n", \
							pLinkInfo->port_unique_digits_phone_number_length);
		
		printf ("Port unique digit phone number is : %s\n", \
								pLinkInfo->port_unique_digits_phone_number);
		
		printf ("********************Port Manager Details********************");
		printf ("\n\n");

		pLinkInfo = (LINK_INFO *)SLL_NEXT (pLinkInfo);
		}
    }