ospf_opaque_lsa.c

vxworks下ospf协议栈

							sptr_next_database_entry = sptr_database_entry->sptr_forward_link;
							
							if ( sptr_database_entry->advertisement.sptr_type_10 != NULL )
								{
								opaque_lsa_count++;
								}
							}
						}
					sptr_area = sptr_area->sptr_forward_link;
					}
				break;
			case OSPF_LS_TYPE_11:
				sptr_ls_database_head = NULL;
				sptr_database_entry = NULL;
				index =0;
				/* Check for type 11 lsdb */
				for (index = 0x00000000L, sptr_ls_database_head = &(ospf.type_11_database_hash_table[LS_TYPE_11_LSA][index]);	/* for each hash list */
					index < OSPF_HASH_TABLE_SIZE; ++index, sptr_ls_database_head = &(ospf.type_11_database_hash_table[LS_TYPE_11_LSA][index]))
					{
					if (sptr_ls_database_head == NULL)
						{
						continue;
						}

					/* SPR#76812 */
				       	for (sptr_database_entry = sptr_ls_database_head->sptr_linear_database_entry;
				       		sptr_database_entry != NULL;
				       	    sptr_database_entry = sptr_next_database_entry)
							{
							sptr_next_database_entry = sptr_database_entry->sptr_forward_link;
							
						if ( sptr_database_entry->advertisement.sptr_type_11 != NULL )
							{
							opaque_lsa_count++;
							}
						}
					}
				break;
			}
		semGive (ospf_global_mutex );
		return opaque_lsa_count;
		}
	else
		{
		semGive (ospf_global_mutex );
		return 0;
		}
    }


/***********************************************************************************************************************************/
/*	Function: ospfRetrieveType9
	Input: enum OSPF_SEARCH_TYPE - OSPF_SEARCH_LSA_TYPE|OSPF_SEARCH_LSA_ID|OSPF_SEARCH_ADVERTISING_ROUTER
		   ULONG - key_value
		   ULONG - area_id
	RETURNS: OSPF_TYPE_9_LSA_LINK * - link list of type 9 link state advertisements
	Description: This function retrieves the type 9 opaque lsas from the opaque lsdb.
*/

OSPF_TYPE_9_LSA_LINK *ospfRetrieveType9
    (
    enum OSPF_SEARCH_TYPE key, 
    ULONG key_value, 
    ULONG area_id
    )
    {
	OSPF_AREA_ENTRY *sptr_area = ospf.sptr_area_list;
	OSPF_LS_DATABASE_HEAD *sptr_ls_database_head = NULL;
	OSPF_LS_DATABASE_ENTRY *sptr_database_entry = NULL;
	OSPF_LS_DATABASE_ENTRY *sptr_next_database_entry = NULL;
    ULONG index;
	OSPF_TYPE_9_LSA_LINK *type_9_lsa_head = NULL;
	OSPF_TYPE_9_LSA_LINK *type_9_lsa = NULL;
	USHORT size_of_opaque_lsa = 0;
	USHORT size_of_type_9_lsa = 0;
	USHORT size_of_link_list_pointers = 0;


	OSPF_PRINTF_DEBUG (OSPF_DEBUG_PRINTF, "OSPF: Entering ospfRetrieveType9\r\n");

	key_value = net_to_host_long(key_value);

	semTake (ospf_global_mutex , WAIT_FOREVER);
	
    if (ospf.opaque_capability == TRUE)
		{
		size_of_link_list_pointers = sizeof(OSPF_TYPE_9_LSA_LINK *) + sizeof(OSPF_TYPE_9_LSA_LINK *);
		while (sptr_area != NULL)
			{
			if (sptr_area->area_id == area_id)
				{
				for (index = 0x00000000L, sptr_ls_database_head = &(sptr_area->opaque_ls_database_hash_table[TYPE_9_LSA][index]);	/* for each hash list */
					index < OSPF_HASH_TABLE_SIZE; ++index, sptr_ls_database_head = &(sptr_area->opaque_ls_database_hash_table[TYPE_9_LSA][index]))
					{
					/* SPR#76812 */
			       	for (sptr_database_entry = sptr_ls_database_head->sptr_linear_database_entry;
			       		sptr_database_entry != NULL;
			       	    sptr_database_entry = sptr_next_database_entry)
			            {
						sptr_next_database_entry = sptr_database_entry->sptr_forward_link;
						
						if ( sptr_database_entry->advertisement.sptr_type_9 != NULL )
							{
							if (key == OSPF_SEARCH_ADVERTISING_ROUTER)
								{
								if (sptr_database_entry->advertisement.sptr_type_9->ls_header.advertising_router == key_value)
									{
									size_of_opaque_lsa = sptr_database_entry->advertisement.sptr_type_9->ls_header.length;
									size_of_opaque_lsa = net_to_host_short(size_of_opaque_lsa);
									/* Add forward and backward pointer length */
									size_of_type_9_lsa = (USHORT)(size_of_opaque_lsa + size_of_link_list_pointers);
									type_9_lsa = table_malloc(1, size_of_type_9_lsa);
									if (type_9_lsa == NULL)
										{
										if (type_9_lsa_head != NULL)
											{
											ospf_free_entire_list ((OSPF_GENERIC_NODE*) type_9_lsa_head);
											}
										type_9_lsa_head = NULL;
										semGive (ospf_global_mutex );
										return NULL;
										}
									else
										{
										memcpy(((BYTE *)(type_9_lsa)+size_of_link_list_pointers), sptr_database_entry->advertisement.sptr_type_9, size_of_opaque_lsa);
										if (type_9_lsa_head == NULL)
											{
											type_9_lsa_head = type_9_lsa;
											}
										else
											{
											ospf_add_node_to_end_of_list ((OSPF_GENERIC_NODE *) type_9_lsa, (OSPF_GENERIC_NODE *) type_9_lsa_head);
											}
										}
									}
								}
							else if (key == OSPF_SEARCH_LSA_ID)
								{
								if (sptr_database_entry->advertisement.sptr_type_9->ls_header.id.lsid == key_value)
									{
									size_of_opaque_lsa = sptr_database_entry->advertisement.sptr_type_9->ls_header.length;
									size_of_opaque_lsa = net_to_host_short(size_of_opaque_lsa);
									/* Add forward and backward pointer length */
									size_of_type_9_lsa = (USHORT)(size_of_opaque_lsa + size_of_link_list_pointers);
									type_9_lsa = table_malloc(1, size_of_type_9_lsa);
									if (type_9_lsa == NULL)
										{
										if (type_9_lsa_head != NULL)
											{
											ospf_free_entire_list ((OSPF_GENERIC_NODE*) type_9_lsa_head);
											}
										type_9_lsa_head = NULL;
										semGive (ospf_global_mutex );
										return NULL;
										}
									else
										{
										memcpy(((BYTE *)(type_9_lsa)+size_of_link_list_pointers), sptr_database_entry->advertisement.sptr_type_9, size_of_opaque_lsa);
										if (type_9_lsa_head == NULL)
											{
											type_9_lsa_head = type_9_lsa;
											}
										else
											{
											ospf_add_node_to_end_of_list ((OSPF_GENERIC_NODE *) type_9_lsa, (OSPF_GENERIC_NODE *) type_9_lsa_head);
											}
										}
									}
								}
							else
								{
								size_of_opaque_lsa = sptr_database_entry->advertisement.sptr_type_9->ls_header.length;
								size_of_opaque_lsa = net_to_host_short(size_of_opaque_lsa);
								/* Add forward and backward pointer length */
								size_of_type_9_lsa = (USHORT)(size_of_opaque_lsa + size_of_link_list_pointers);
								type_9_lsa = table_malloc(1, size_of_type_9_lsa);
								if (type_9_lsa == NULL)
									{
									if (type_9_lsa_head != NULL)
										{
										ospf_free_entire_list ((OSPF_GENERIC_NODE*) type_9_lsa_head);
										}
									type_9_lsa_head = NULL;
									semGive (ospf_global_mutex );
									return NULL;
									}
								else
									{
									memcpy(((BYTE *)(type_9_lsa)+size_of_link_list_pointers), sptr_database_entry->advertisement.sptr_type_9, size_of_opaque_lsa);
									if (type_9_lsa_head == NULL)
										{
										type_9_lsa_head = type_9_lsa;
										}
									else
										{
										ospf_add_node_to_end_of_list ((OSPF_GENERIC_NODE *) type_9_lsa, (OSPF_GENERIC_NODE *) type_9_lsa_head);
										}
									}
								}
							}
						}
					}
				}
			sptr_area = sptr_area->sptr_forward_link;
			}
		semGive (ospf_global_mutex );
		return type_9_lsa_head;
		}
	else
		{
		semGive (ospf_global_mutex );
		return NULL;
		}
    }


/***********************************************************************************************************************************/
/*	Function: ospfRetrieveType10
	Input: enum OSPF_SEARCH_TYPE - OSPF_SEARCH_LSA_TYPE|OSPF_SEARCH_LSA_ID|OSPF_SEARCH_ADVERTISING_ROUTER
		   ULONG - key_value
		   ULONG - area_id
	RETURNS: OSPF_TYPE_10_LSA_LINK * - link list of type 10 link state advertisements
	Description: This function retrieves the type 10 opaque lsas from the opaque lsdb.
*/

OSPF_TYPE_10_LSA_LINK *ospfRetrieveType10
    (
    enum OSPF_SEARCH_TYPE key, 
    ULONG key_value, 
    ULONG area_id
    )
    {
	OSPF_AREA_ENTRY *sptr_area = ospf.sptr_area_list;
	OSPF_LS_DATABASE_HEAD *sptr_ls_database_head = NULL;
	OSPF_LS_DATABASE_ENTRY *sptr_database_entry = NULL;
	OSPF_LS_DATABASE_ENTRY *sptr_next_database_entry = NULL;
    ULONG index;
	OSPF_TYPE_10_LSA_LINK *type_10_lsa_head = NULL;
	OSPF_TYPE_10_LSA_LINK *type_10_lsa = NULL;
	USHORT size_of_opaque_lsa = 0;
	USHORT size_of_type_10_lsa = 0;
	USHORT size_of_link_list_pointers = 0;

	OSPF_PRINTF_DEBUG (OSPF_DEBUG_PRINTF, "OSPF: Entering ospfRetrieveType10\r\n");

	key_value = net_to_host_long(key_value);

	semTake (ospf_global_mutex , WAIT_FOREVER);
	
    if (ospf.opaque_capability == TRUE)
		{
		size_of_link_list_pointers = sizeof(OSPF_TYPE_10_LSA_LINK *) + sizeof(OSPF_TYPE_10_LSA_LINK *);
		while (sptr_area != NULL)
			{
			if (sptr_area->area_id == area_id)
				{
				for (index = 0x00000000L, sptr_ls_database_head = &(sptr_area->opaque_ls_database_hash_table[TYPE_10_LSA][index]);	/* for each hash list */
					index < OSPF_HASH_TABLE_SIZE; ++index, sptr_ls_database_head = &(sptr_area->opaque_ls_database_hash_table[TYPE_10_LSA][index]))
					{
					/* SPR#76812 */
			       	for (sptr_database_entry = sptr_ls_database_head->sptr_linear_database_entry;
			       		sptr_database_entry != NULL;
			       	    sptr_database_entry = sptr_next_database_entry)
			            {
						sptr_next_database_entry = sptr_database_entry->sptr_forward_link;
						
						if ( sptr_database_entry->advertisement.sptr_type_10 != NULL )
							{
							if (key == OSPF_SEARCH_ADVERTISING_ROUTER)
								{
								if (sptr_database_entry->advertisement.sptr_type_10->ls_header.advertising_router == key_value)
									{
									size_of_opaque_lsa = sptr_database_entry->advertisement.sptr_type_10->ls_header.length;
									size_of_opaque_lsa = net_to_host_short(size_of_opaque_lsa);
									/* Add forward and backward pointer length */
									size_of_type_10_lsa = (USHORT)(size_of_opaque_lsa + size_of_link_list_pointers);
									type_10_lsa = table_malloc(1, size_of_type_10_lsa);
									if (type_10_lsa == NULL)
										{
										if (type_10_lsa_head != NULL)
											{
											ospf_free_entire_list ((OSPF_GENERIC_NODE*) type_10_lsa_head);
											}
										type_10_lsa_head = NULL;
										semGive (ospf_global_mutex );
										return NULL;
										}
									else
										{
										memcpy(((BYTE *)(type_10_lsa)+size_of_link_list_pointers), sptr_database_entry->advertisement.sptr_type_10, size_of_opaque_lsa);
										if (type_10_lsa_head == NULL)
											{
											type_10_lsa_head = type_10_lsa;
											}
										else
											{
											ospf_add_node_to_end_of_list ((OSPF_GENERIC_NODE *) type_10_lsa, (OSPF_GENERIC_NODE *) type_10_lsa_head);
											}
										}
									}
								}
							else if (key == OSPF_SEARCH_LSA_ID)
								{
								if (sptr_database_entry->advertisement.sptr_type_10->ls_header.id.lsid == key_value)
									{
									size_of_opaque_lsa = sptr_database_entry->advertisement.sptr_type_10->ls_header.length;
									size_of_opaque_lsa = net_to_host_short(size_of_opaque_lsa);
									/* Add forward and backward pointer length */
									size_of_type_10_lsa = (USHORT)(size_of_opaque_lsa + size_of_link_list_pointers);
									type_10_lsa = table_malloc(1, size_of_type_10_lsa);
									if (type_10_lsa == NULL)
										{
										if (type_10_lsa_head != NULL)
											{
											ospf_free_entire_list ((OSPF_GENERIC_NODE*) type_10_lsa_head);
											}
										type_10_lsa_head = NULL;
										semGive (ospf_global_mutex );
										return NULL;
										}
									else
										{
										memcpy(((BYTE *)(type_10_lsa)+size_of_link_list_pointers), sptr_database_entry->advertisement.sptr_type_10, size_of_opaque_lsa);
										if (type_10_lsa_head == NULL)
											{
											type_10_lsa_head = type_10_lsa;
											}
										else
											{
											ospf_add_node_to_end_of_list ((OSPF_GENERIC_NODE *) type_10_lsa, (OSPF_GENERIC_NODE *) type_10_lsa_head);
											}
										}
									}
								}
							else
								{
								size_of_opaque_lsa = sptr_database_entry->advertisement.sptr_type_10->ls_header.length;
								size_of_opaque_lsa = net_to_host_short(size_of_opaque_lsa);
								/* Add forward and backward pointer length */
								size_of_type_10_lsa = (USHORT)(size_of_opaque_lsa + size_of_link_list_pointers);
								type_10_lsa = table_malloc(1, size_of_type_10_lsa);
								if (type_10_lsa == NULL)
									{
									if (type_10_lsa_head != NULL)
										{
										ospf_free_entire_list ((OSPF_GENERIC_NODE*) type_10_lsa_head);
										}
									type_10_lsa_head = NULL;