if (sptr_ip_route_entry->gateway == 0L)		{		for (sptr_area = ospf.sptr_area_list; sptr_area != NULL; sptr_area = sptr_area->sptr_forward_link)			{			for (sptr_interface = sptr_area->sptr_interfaces; sptr_interface != NULL; sptr_interface = sptr_interface->sptr_forward_link)				{				if(sptr_interface->address == sptr_next_hop_block->outgoing_router_interface)					{                                        if(sptr_interface->type == OSPF_POINT_TO_POINT)							sptr_ip_route_entry->gateway = ospf_get_destination_address_of_PPP_link (sptr_next_hop_block->outgoing_router_interface);                                        else                                        	sptr_ip_route_entry->gateway = sptr_next_hop_block->outgoing_router_interface;					}				}			}		}	/* SPR 74616 */	/* SPR 81145 */	/* SPR 84714 -- Begin */	/* install the appropriate metric depending if this is external type 2 or not*/	if (sptr_ospf_route_entry_to_export->type2_cost == 0x00)	{		sptr_ip_route_entry->metric = sptr_ospf_route_entry_to_export->path_cost;	}	else	{		sptr_ip_route_entry->metric = sptr_ospf_route_entry_to_export->type2_cost;	}	/* SPR 84714 -- End */	sptr_ip_route_entry->ipRouteProto = OSPF_PROTOCOL_TYPE; /* defined in kroute.h */	sptr_ip_route_entry->sender_ip_address = sptr_ospf_route_entry_to_export->advertising_router;	sptr_ip_route_entry->ipRouteType = INDIRECT_ROUTE_TYPE;	/* #### Reshma: RTM does not add this Gateway to Routing table unless this routetype is INDIRECT_ROUTE_TYPE */    /* SPR 84711 -- Begin */	/* Set the OSPF weight in the kernel table */	sptr_ip_route_entry->weight = RTM_OSPF_ROUTE_WEIGHT;	/* SPR 84711 -- End */	ospf_set_ip_route_tagfiled (sptr_ip_route_entry, sptr_ospf_route_entry_to_export);	ospf_set_ip_metrics (sptr_ip_route_entry, sptr_ospf_route_entry_to_export);	return (PASS);}/******************************************************************************/static void ospf_set_ip_route_tagfiled (IP_ROUTE_ENTRY *sptr_ip_route, OSPF_ROUTING_TABLE_ENTRY *sptr_ospf_route_entry_to_export){	OSPF_PRINTF_DEBUG (OSPF_DEBUG_PRINTF, "OSPF: Entering ospf_set_ip_route_tagfiled\r\n");	if (sptr_ospf_route_entry_to_export->path_type == OSPF_ROUTE_PATH_TYPE_INTRA ||		sptr_ospf_route_entry_to_export->path_type == OSPF_ROUTE_PATH_TYPE_INTER)		{		sptr_ip_route->route_tag = OSPF_INTERNAL;		}	else if (sptr_ospf_route_entry_to_export->path_type == OSPF_ROUTE_PATH_TYPE_1_EXTERNAL ||		sptr_ospf_route_entry_to_export->path_type == OSPF_ROUTE_PATH_TYPE_2_EXTERNAL )		{		if ((sptr_ospf_route_entry_to_export->sptr_link_state_origin != NULL) &&            (sptr_ospf_route_entry_to_export->sptr_link_state_origin->sptr_external != NULL))			{			if ((sptr_ospf_route_entry_to_export->sptr_link_state_origin->sptr_external->tos0_external_route_tag & 0x0000ffff) != 0x00)				{				if ((sptr_ospf_route_entry_to_export->sptr_link_state_origin->sptr_external->tos0_external_route_tag & 0xffff0000) != 0x00)					{					sptr_ip_route->route_tag = (USHORT)						(sptr_ospf_route_entry_to_export->sptr_link_state_origin->sptr_external->tos0_external_route_tag & 0xffff0000);					}				else					{					sptr_ip_route->route_tag = (USHORT) RFC1745_EGP_ORIGEGP_ROUTE_TAG;	/* RFC 1745 - neighbor AS is there in tag */					}				}			else				{				sptr_ip_route->route_tag = (USHORT) RFC1745_IGP_TO_OSPF_ROUTE_TAG;	/* AS field in tag is NULL means loacl AS static export or RIP */				}			}		else			{			/* sptr_link_state_origin pointer is NULL - somethings wrong */			sptr_ip_route->route_tag = (USHORT) RFC1745_BGP_TO_OSPF_ROUTE_TAG;			}		}	return;}/******************************************************************************/static void ospf_set_ip_metrics (IP_ROUTE_ENTRY *sptr_ip_route, OSPF_ROUTING_TABLE_ENTRY *sptr_ospf_route_entry_to_export){	OSPF_PRINTF_DEBUG (OSPF_DEBUG_PRINTF, "OSPF: Entering ospf_set_ip_metrics\r\n");	sptr_ip_route->metric_2 = 0x00000000L;	sptr_ip_route->metric_3	= 0x00000000L;	sptr_ip_route->metric_4	= 0x00000000L;	switch (sptr_ospf_route_entry_to_export->path_type)		{		case OSPF_ROUTE_PATH_TYPE_INTRA:			sptr_ip_route->metric_2 = 0x00000000L;			break;		case OSPF_ROUTE_PATH_TYPE_INTER:			sptr_ip_route->metric_2 = TRUE;			break;		case OSPF_ROUTE_PATH_TYPE_1_EXTERNAL:			sptr_ip_route->metric_3 = TRUE;			break;		case OSPF_ROUTE_PATH_TYPE_2_EXTERNAL:			sptr_ip_route->metric_4 = sptr_ospf_route_entry_to_export->type2_cost;			break;		default:			break;		}	return;}/******************************************************************************/void* ospf_buffer_free(void* p_data){	OSPF_PRINTF_DEBUG (OSPF_DEBUG_PRINTF, "OSPF: Entering ospf_buffer_free\r\n");	/* SPR 81808 */	table_free(p_data);	p_data = NULL;	return p_data;}/******************************************************************************//* SPR 74616 */ULONG  ospf_get_destination_address_of_PPP_link ( ULONG src_ppp_addr)    {    struct ifnet 		*ifp;    struct ifaddr 		*ifa;	ULONG src_ip_address;	ULONG dest_ip_address;	bool mutex_released = FALSE;	int s;	mutex_released = semGive (ospf_global_mutex);#if defined (VIRTUAL_STACK)    virtualStackNumTaskIdSet (ospf.ospf_vsid);#endif /* VIRTUAL_STACK */	    s = splimp();#if defined (VIRTUAL_STACK)    for (ifp = _ifnet;  ifp!= NULL;  ifp = ifp->if_next)#else    for (ifp = ifnet;  ifp!= NULL;  ifp = ifp->if_next)#endif		{		for (ifa = ifp->if_addrlist;  ifa != NULL;  ifa = ifa->ifa_next)			{			if (ifa->ifa_addr->sa_family == AF_INET)				{				src_ip_address = htonl(((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr);				if ((ifp->if_flags & IFF_POINTOPOINT) && (src_ip_address == src_ppp_addr))					{					dest_ip_address = ntohl(((struct sockaddr_in *)ifa->ifa_dstaddr)->sin_addr.s_addr);					splx(s);					if (mutex_released)						semTake (ospf_global_mutex, WAIT_FOREVER);					return (dest_ip_address);					}				}			}        }	splx(s);	if (mutex_released)		semTake (ospf_global_mutex, WAIT_FOREVER);	return (0L);    }/* SPR 74616 *//******************************************************************************/void ospfShowVersion(void){    printf ("\t\t\tWindNet OSPFv%d\r\n", OSPF_VERSION);    printf ("\n");    printf ("\tVersion number\t:\t%s.%s\r\n", OSPF_REV, OSPF_REV_TYPE);    printf ("\tCreation date\t:\t%s\r\n", OSPF_BUILD);    printf ("\n");    return;}     /* * dstaddr_to_ifp () * with a dest address returns the ifnet* structure * * RETURNS : ifnet* pointer if the address was found *	       :  NULL   if the address was not found * */struct ifnet*	dstaddr_to_ifp	(	struct in_addr addr	)	{    register struct in_ifaddr *ia;    struct ifnet*  ifp;    int s;#if defined (VIRTUAL_STACK)    virtualStackNumTaskIdSet (ospf.ospf_vsid);#endif /* VIRTUAL_STACK */    s = splimp();#if defined (VIRTUAL_STACK)    for (ia = _in_ifaddr; ia != NULL && (ia->ia_dstaddr.sin_addr.s_addr != (addr).s_addr); ia = ia->ia_next)#else    for (ia = in_ifaddr; ia != NULL && (ia->ia_dstaddr.sin_addr.s_addr != (addr).s_addr); ia = ia->ia_next)#endif /* VIRTUAL_STACK */	continue;    ifp = (ia == NULL) ? NULL : ia->ia_ifp;    splx(s);    return ifp;	}UINT ospf_get_system_elapsed_time_second ()    {    ULONG absolute_tick_count;    UINT seconds;    UINT ticks_per_second = 0;    ticks_per_second = (UINT)sysClkRateGet ();    absolute_tick_count = tickGet ();    seconds = absolute_tick_count/ticks_per_second;    return (seconds);    }#if (_BYTE_ORDER == _LITTLE_ENDIAN)/*************************************************************/USHORT ospf_host_to_net_short (USHORT host_order_short_value){	BYTE *bptr_return_value;	USHORT net_order_value;	bptr_return_value = (BYTE *) &net_order_value;	*bptr_return_value = (BYTE) (host_order_short_value >> NUMBER_OF_BITS_IN_BYTE);	++bptr_return_value;	*bptr_return_value = (BYTE) host_order_short_value;	return (net_order_value);}/*****************************************************************************/USHORT ospf_net_to_host_short (USHORT net_order_short_value){	USHORT host_order_value;	BYTE *bptr_net_order_value;	bptr_net_order_value = (BYTE *) &net_order_short_value;	host_order_value = *bptr_net_order_value;	++bptr_net_order_value;	host_order_value <<= NUMBER_OF_BITS_IN_BYTE;	host_order_value = (USHORT) (host_order_value | *bptr_net_order_value);	return (host_order_value);}											/*****************************************************************************/ULONG ospf_host_to_net_long (ULONG host_order_long_value){	BYTE *bptr_net_order_value;	BYTE *bptr_host_order_long_value;	ULONG net_order_value;	bptr_net_order_value = (BYTE *) &net_order_value + (sizeof (ULONG) - 0x0001);	bptr_host_order_long_value = (BYTE *) &host_order_long_value;	*bptr_net_order_value = *bptr_host_order_long_value;	--bptr_net_order_value;	++bptr_host_order_long_value;	*bptr_net_order_value = *bptr_host_order_long_value;	--bptr_net_order_value;	++bptr_host_order_long_value; 		*bptr_net_order_value = *bptr_host_order_long_value;	--bptr_net_order_value;	++bptr_host_order_long_value;	*bptr_net_order_value = *bptr_host_order_long_value;	return (net_order_value);}/*****************************************************************************/ULONG ospf_net_to_host_long (ULONG net_order_long_value){	ULONG host_order_value;	BYTE *bptr_net_order_long_value;	bptr_net_order_long_value = (BYTE *) &net_order_long_value;	host_order_value = *bptr_net_order_long_value;	++bptr_net_order_long_value;	host_order_value <<= NUMBER_OF_BITS_IN_BYTE;	host_order_value = host_order_value | *bptr_net_order_long_value;	++bptr_net_order_long_value;	host_order_value <<= NUMBER_OF_BITS_IN_BYTE;	host_order_value = host_order_value | *bptr_net_order_long_value;	++bptr_net_order_long_value;	host_order_value <<= NUMBER_OF_BITS_IN_BYTE;	host_order_value = host_order_value | *bptr_net_order_long_value;	return (host_order_value);}#endif/*************************************************************************//* * Convert an internet address (in network byte order) to a dotted decimal ascii string. */char * ospf_convert_ip_address_to_dot_format (char *cptr_array_to_store_dot_format_address, ULONG ip_address){	sprintf ((char *) cptr_array_to_store_dot_format_address, "%lu.%lu.%lu.%lu",		high_byte_of_dword (ip_address),		high_low_byte_of_dword (ip_address),		low_high_of_dword (ip_address),		low_byte_of_dword (ip_address));	return (cptr_array_to_store_dot_format_address);}/*************************************************************************/char * ospf_strlwr (char *cptr_string_to_lower_case){	char *cptr_original_string_to_lower_case;	cptr_original_string_to_lower_case = cptr_string_to_lower_case;	while (*cptr_string_to_lower_case != (char) (ULONG) NULL)		{		if (*cptr_string_to_lower_case >= 'A' && *cptr_string_to_lower_case <= 'Z')			{			*cptr_string_to_lower_case += (char) 0x20;			}		++cptr_string_to_lower_case;		}	return (cptr_original_string_to_lower_case);}