nsTransactionTable.c
上传用户:wxp200602
上传日期:2007-10-30
资源大小:4028k
文件大小:8k
- /*
- * Note: this file originally auto-generated by mib2c
- */
- #include <net-snmp/net-snmp-config.h>
- #include <net-snmp/net-snmp-includes.h>
- #include <net-snmp/agent/net-snmp-agent-includes.h>
- #include <net-snmp/agent/table.h>
- #include <net-snmp/agent/table_iterator.h>
- #include "nsTransactionTable.h"
- /** Initialize the nsTransactionTable table by defining it's contents
- and how it's structured */
- void
- initialize_table_nsTransactionTable(void)
- {
- static oid nsTransactionTable_oid[] =
- { 1, 3, 6, 1, 4, 1, 8072, 1, 8, 1 };
- size_t nsTransactionTable_oid_len =
- OID_LENGTH(nsTransactionTable_oid);
- netsnmp_table_registration_info *table_info;
- netsnmp_handler_registration *my_handler;
- netsnmp_iterator_info *iinfo;
- /*
- * create the table structure itself
- */
- table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info);
- iinfo = SNMP_MALLOC_TYPEDEF(netsnmp_iterator_info);
- /*
- * if your table is read only, it's easiest to change the
- * HANDLER_CAN_RWRITE definition below to HANDLER_CAN_RONLY
- */
- my_handler = netsnmp_create_handler_registration("nsTransactionTable",
- nsTransactionTable_handler,
- nsTransactionTable_oid,
- nsTransactionTable_oid_len,
- HANDLER_CAN_RONLY);
- if (!my_handler || !table_info || !iinfo)
- return; /* mallocs failed */
- /***************************************************
- * Setting up the table's definition
- */
- netsnmp_table_helper_add_index(table_info, ASN_INTEGER); /* index:
- * * nsTransactionID
- */
- table_info->min_column = 2;
- table_info->max_column = 2;
- iinfo->get_first_data_point = nsTransactionTable_get_first_data_point;
- iinfo->get_next_data_point = nsTransactionTable_get_next_data_point;
- iinfo->table_reginfo = table_info;
- /***************************************************
- * registering the table with the master agent
- */
- DEBUGMSGTL(("initialize_table_nsTransactionTable",
- "Registering table nsTransactionTable as a table iteratorn"));
- netsnmp_register_table_iterator(my_handler, iinfo);
- }
- /** Initialzies the nsTransactionTable module */
- void
- init_nsTransactionTable(void)
- {
- /*
- * here we initialize all the tables we're planning on supporting
- */
- initialize_table_nsTransactionTable();
- }
- /** returns the first data point within the nsTransactionTable table data.
- Set the my_loop_context variable to the first data point structure
- of your choice (from which you can find the next one). This could
- be anything from the first node in a linked list, to an integer
- pointer containing the beginning of an array variable.
- Set the my_data_context variable to something to be returned to
- you later that will provide you with the data to return in a given
- row. This could be the same pointer as what my_loop_context is
- set to, or something different.
- The put_index_data variable contains a list of snmp variable
- bindings, one for each index in your table. Set the values of
- each appropriately according to the data matching the first row
- and return the put_index_data variable at the end of the function.
- */
- extern netsnmp_agent_session *agent_delegated_list;
- netsnmp_variable_list *
- nsTransactionTable_get_first_data_point(void **my_loop_context,
- void **my_data_context,
- netsnmp_variable_list
- * put_index_data,
- netsnmp_iterator_info *iinfo)
- {
- netsnmp_variable_list *vptr;
- if (!agent_delegated_list)
- return NULL;
- *my_loop_context = (void *) agent_delegated_list;
- *my_data_context = (void *) agent_delegated_list;
- vptr = put_index_data;
- snmp_set_var_value(vptr,
- (u_char *) & agent_delegated_list->pdu->transid,
- sizeof(agent_delegated_list->pdu->transid));
- return put_index_data;
- }
- /** functionally the same as nsTransactionTable_get_first_data_point, but
- my_loop_context has already been set to a previous value and should
- be updated to the next in the list. For example, if it was a
- linked list, you might want to cast it and the return
- my_loop_context->next. The my_data_context pointer should be set
- to something you need later and the indexes in put_index_data
- updated again. */
- netsnmp_variable_list *
- nsTransactionTable_get_next_data_point(void **my_loop_context,
- void **my_data_context,
- netsnmp_variable_list
- * put_index_data,
- netsnmp_iterator_info *iinfo)
- {
- netsnmp_variable_list *vptr;
- netsnmp_agent_session *alist = (netsnmp_agent_session *)
- *my_loop_context;
- if (!alist->next)
- return NULL;
- alist = alist->next;
- *my_loop_context = (void *) alist;
- *my_data_context = (void *) alist;
- vptr = put_index_data;
- snmp_set_var_value(vptr, (u_char *) & alist->pdu->transid,
- sizeof(alist->pdu->transid));
- return put_index_data;
- }
- /** handles requests for the nsTransactionTable table, if anything
- else needs to be done */
- int
- nsTransactionTable_handler(netsnmp_mib_handler *handler,
- netsnmp_handler_registration *reginfo,
- netsnmp_agent_request_info *reqinfo,
- netsnmp_request_info *requests)
- {
- netsnmp_table_request_info *table_info;
- netsnmp_variable_list *var;
- netsnmp_agent_session *asp;
- for (; requests; requests = requests->next) {
- var = requests->requestvb;
- if (requests->processed != 0)
- continue;
- /*
- * perform anything here that you need to do. The requests have
- * already been processed by the master table_dataset handler, but
- * this gives you chance to act on the request in some other way if
- * need be.
- */
- /*
- * the following extracts the my_data_context pointer set in the
- * loop functions above. You can then use the results to help
- * return data for the columns of the nsTransactionTable table in
- * question
- */
- asp =
- (netsnmp_agent_session *)
- netsnmp_extract_iterator_context(requests);
- if (asp == NULL) {
- netsnmp_set_request_error(reqinfo, requests,
- SNMP_NOSUCHINSTANCE);
- }
- /*
- * extracts the information about the table from the request
- */
- table_info = netsnmp_extract_table_info(requests);
- /*
- * table_info->colnum contains the column number requested
- */
- /*
- * table_info->indexes contains a linked list of snmp variable
- * bindings for the indexes of the table. Values in the list have
- * been set corresponding to the indexes of the request
- */
- if (table_info == NULL) {
- continue;
- }
- switch (reqinfo->mode) {
- /*
- * the table_iterator helper should change all GETNEXTs into
- * GETs for you automatically, so you don't have to worry
- * about the GETNEXT case. Only GETs and SETs need to be
- * dealt with here
- */
- case MODE_GET:
- switch (table_info->colnum) {
- case COLUMN_NSTRANSACTIONMODE:
- snmp_set_var_typed_value(var, ASN_INTEGER,
- (u_char *) & asp->mode,
- sizeof(asp->mode));
- break;
- default:
- /*
- * We shouldn't get here
- */
- snmp_log(LOG_ERR,
- "problem encountered in nsTransactionTable_handler: unknown columnn");
- }
- break;
- default:
- snmp_log(LOG_ERR,
- "problem encountered in nsTransactionTable_handler: unsupported moden");
- }
- }
- return SNMP_ERR_NOERROR;
- }