mtetriggerthresholdtable.c

开发snmp的开发包有两个开放的SNMP开发库

/*
 * DisMan Event MIB:
 *     Implementation of the mteTriggerThresholdTable MIB interface
 * See 'mteTrigger.c' for active behaviour of this table.
 *
 * (based on mib2c.table_data.conf output)
 */

#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "disman/event/mteTrigger.h"
#include "disman/event/mteTriggerThresholdTable.h"


/** Initializes the mteTriggerThresholdTable module */
void
init_mteTriggerThresholdTable(void)
{
    static oid mteTThreshTable_oid[]   = { 1, 3, 6, 1, 2, 1, 88, 1, 2, 6 };
    size_t     mteTThreshTable_oid_len = OID_LENGTH(mteTThreshTable_oid);
    netsnmp_handler_registration    *reg;
    netsnmp_table_registration_info *table_info;

    /*
     * Ensure the (combined) table container is available...
     */
    init_trigger_table_data();

    /*
     * ... then set up the MIB interface to the mteTriggerThresholdTable slice
     */
    reg = netsnmp_create_handler_registration("mteTriggerThresholdTable",
                                            mteTriggerThresholdTable_handler,
                                            mteTThreshTable_oid,
                                            mteTThreshTable_oid_len,
                                            HANDLER_CAN_RWRITE);

    table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info);
    netsnmp_table_helper_add_indexes(table_info,
                                     ASN_OCTET_STR, /* index: mteOwner       */
                                                    /* index: mteTriggerName */
                                     ASN_PRIV_IMPLIED_OCTET_STR,
                                     0);

    table_info->min_column = COLUMN_MTETRIGGERTHRESHOLDSTARTUP;
    table_info->max_column = COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENT;

    /* Register this using the (common) trigger_table_data container */
    netsnmp_tdata_register(reg, trigger_table_data, table_info);
    DEBUGMSGTL(("disman:event:init", "Trigger Threshold Table\n"));
}


/** handles requests for the mteTriggerThresholdTable table */
int
mteTriggerThresholdTable_handler(netsnmp_mib_handler *handler,
                                 netsnmp_handler_registration *reginfo,
                                 netsnmp_agent_request_info *reqinfo,
                                 netsnmp_request_info *requests)
{

    netsnmp_request_info       *request;
    netsnmp_table_request_info *tinfo;
    struct mteTrigger          *entry;
    int ret;

    DEBUGMSGTL(("disman:event:mib", "Threshold Table handler (%d)\n",
                                     reqinfo->mode));

    switch (reqinfo->mode) {
        /*
         * Read-support (also covers GetNext requests)
         */
    case MODE_GET:
        for (request = requests; request; request = request->next) {
            entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            /*
             * The mteTriggerThresholdTable should only contains entries for
             *   rows where the mteTriggerTest 'threshold(2)' bit is set.
             * So skip entries where this isn't the case.
             */
            if (!entry || !(entry->mteTriggerTest & MTE_TRIGGER_THRESHOLD ))
                continue;

            switch (tinfo->colnum) {
            case COLUMN_MTETRIGGERTHRESHOLDSTARTUP:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->mteTThStartup);
                break;
            case COLUMN_MTETRIGGERTHRESHOLDRISING:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->mteTThRiseValue);
                break;
            case COLUMN_MTETRIGGERTHRESHOLDFALLING:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->mteTThFallValue);
                break;
            case COLUMN_MTETRIGGERTHRESHOLDDELTARISING:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->mteTThDRiseValue);
                break;
            case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLING:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->mteTThDFallValue);
                break;
            case COLUMN_MTETRIGGERTHRESHOLDOBJECTSOWNER:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThObjOwner,
                                  strlen(entry->mteTThObjOwner));
                break;
            case COLUMN_MTETRIGGERTHRESHOLDOBJECTS:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThObjects,
                                  strlen(entry->mteTThObjects));
                break;
            case COLUMN_MTETRIGGERTHRESHOLDRISINGEVENTOWNER:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThRiseOwner,
                                  strlen(entry->mteTThRiseOwner));
                break;
            case COLUMN_MTETRIGGERTHRESHOLDRISINGEVENT:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThRiseEvent,
                                  strlen(entry->mteTThRiseEvent));
                break;
            case COLUMN_MTETRIGGERTHRESHOLDFALLINGEVENTOWNER:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThFallOwner,
                                  strlen(entry->mteTThFallOwner));
                break;
            case COLUMN_MTETRIGGERTHRESHOLDFALLINGEVENT:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThFallEvent,
                                  strlen(entry->mteTThFallEvent));
                break;
            case COLUMN_MTETRIGGERTHRESHOLDDELTARISINGEVENTOWNER:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThDRiseOwner,
                                  strlen(entry->mteTThDRiseOwner));
                break;
            case COLUMN_MTETRIGGERTHRESHOLDDELTARISINGEVENT:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThDRiseEvent,
                                  strlen(entry->mteTThDRiseEvent));
                break;
            case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENTOWNER:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThDFallOwner,
                                  strlen(entry->mteTThDFallOwner));
                break;
            case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENT:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                              (u_char *) entry->mteTThDFallEvent,
                                  strlen(entry->mteTThDFallEvent));
                break;
            }
        }
        break;

        /*
         * Write-support
         */
    case MODE_SET_RESERVE1:
        for (request = requests; request; request = request->next) {
            entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            /*
             * Since the mteTriggerThresholdTable only contains entries for
             *   rows where the mteTriggerTest 'threshold(2)' bit is set,
             *   strictly speaking we should reject assignments where
             *   this isn't the case.