mtetriggertable.c

开发snmp的开发包有两个开放的SNMP开发库

/*
 * DisMan Event MIB:
 *     Implementation of the mteTriggerTable 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 "utilities/iquery.h"
#include "disman/event/mteTrigger.h"
#include "disman/event/mteTriggerTable.h"


/** Initializes the mteTriggerTable module */
void
init_mteTriggerTable(void)
{
    static oid  mteTriggerTable_oid[]   = { 1, 3, 6, 1, 2, 1, 88, 1, 2, 2 };
    size_t      mteTriggerTable_oid_len = OID_LENGTH(mteTriggerTable_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 mteTriggerTable slice
     */
    reg = netsnmp_create_handler_registration("mteTriggerTable",
                                            mteTriggerTable_handler,
                                            mteTriggerTable_oid,
                                            mteTriggerTable_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_MTETRIGGERCOMMENT;
    table_info->max_column = COLUMN_MTETRIGGERENTRYSTATUS;

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


/** handles requests for the mteTriggerTable table */
int
mteTriggerTable_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;
    netsnmp_tdata_row          *row;
    struct mteTrigger          *entry;
    char mteOwner[MTE_STR1_LEN+1];
    char mteTName[MTE_STR1_LEN+1];
    long ret;

    DEBUGMSGTL(("disman:event:mib", "Trigger 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);

            switch (tinfo->colnum) {
            case COLUMN_MTETRIGGERCOMMENT:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->mteTriggerComment,
                                  strlen(entry->mteTriggerComment));
                break;
            case COLUMN_MTETRIGGERTEST:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                        &entry->mteTriggerTest, 1);
                break;
            case COLUMN_MTETRIGGERSAMPLETYPE:
                ret = (entry->flags & MTE_TRIGGER_FLAG_DELTA ) ?
                           MTE_SAMPLE_DELTA : MTE_SAMPLE_ABSOLUTE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_MTETRIGGERVALUEID:
                snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
                              (u_char *) entry->mteTriggerValueID,
                                         entry->mteTriggerValueID_len*sizeof(oid));
                break;
            case COLUMN_MTETRIGGERVALUEIDWILDCARD:
                ret = (entry->flags & MTE_TRIGGER_FLAG_VWILD ) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_MTETRIGGERTARGETTAG:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->mteTriggerTarget,
                                  strlen(entry->mteTriggerTarget));
                break;
            case COLUMN_MTETRIGGERCONTEXTNAME:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->mteTriggerContext,
                                  strlen(entry->mteTriggerContext));
                break;
            case COLUMN_MTETRIGGERCONTEXTNAMEWILDCARD:
                ret = (entry->flags & MTE_TRIGGER_FLAG_CWILD ) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_MTETRIGGERFREQUENCY:
                snmp_set_var_typed_integer(request->requestvb, ASN_UNSIGNED,
                                           entry->mteTriggerFrequency);
                break;
            case COLUMN_MTETRIGGEROBJECTSOWNER:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->mteTriggerOOwner,
                                  strlen(entry->mteTriggerOOwner));
                break;
            case COLUMN_MTETRIGGEROBJECTS:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->mteTriggerObjects,
                                  strlen(entry->mteTriggerObjects));
                break;
            case COLUMN_MTETRIGGERENABLED:
                ret = (entry->flags & MTE_TRIGGER_FLAG_ENABLED ) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_MTETRIGGERENTRYSTATUS:
                ret = (entry->flags & MTE_TRIGGER_FLAG_ACTIVE ) ?
                           RS_ACTIVE : RS_NOTINSERVICE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                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);

            switch (tinfo->colnum) {
            case COLUMN_MTETRIGGERCOMMENT:
            case COLUMN_MTETRIGGERTARGETTAG:
            case COLUMN_MTETRIGGERCONTEXTNAME:
                ret = netsnmp_check_vb_type_and_max_size(
                          request->requestvb, ASN_OCTET_STR, MTE_STR2_LEN);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTETRIGGERTEST:
                ret = netsnmp_check_vb_type_and_size(
                          request->requestvb, ASN_OCTET_STR, 1);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTETRIGGERSAMPLETYPE:
                ret = netsnmp_check_vb_int_range(request->requestvb,
                                    MTE_SAMPLE_ABSOLUTE, MTE_SAMPLE_DELTA);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTETRIGGERVALUEID:
                ret = netsnmp_check_vb_oid(request->requestvb);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTETRIGGERVALUEIDWILDCARD:
            case COLUMN_MTETRIGGERCONTEXTNAMEWILDCARD:
            case COLUMN_MTETRIGGERENABLED:
                ret = netsnmp_check_vb_truthvalue(request->requestvb);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;

            case COLUMN_MTETRIGGERFREQUENCY:
                ret = netsnmp_check_vb_uint(request->requestvb);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTETRIGGEROBJECTSOWNER:
            case COLUMN_MTETRIGGEROBJECTS:
                ret = netsnmp_check_vb_type_and_max_size(
                          request->requestvb, ASN_OCTET_STR, MTE_STR1_LEN);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTETRIGGERENTRYSTATUS:
                ret = netsnmp_check_vb_rowstatus(request->requestvb,
                          (entry ? RS_ACTIVE : RS_NONEXISTENT));
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }