Exemplo n.º 1
0
/** extracts the (table-specific) entry being accessed from the
 *  request structure */
void *netsnmp_tdata_extract_entry (netsnmp_request_info * request)
{
    netsnmp_tdata_row *row = (netsnmp_tdata_row *) netsnmp_tdata_extract_row (request);

    if (row)
        return row->data;
    else
        return NULL;
}
/** handles requests for the tlstmCertToTSNTable table */
static int
tlstmCertToTSNTable_handler(netsnmp_mib_handler *handler,
                            netsnmp_handler_registration *reginfo,
                            netsnmp_agent_request_info *reqinfo,
                            netsnmp_request_info *requests)
{
    oid tsnm[] = { SNMP_TLS_TM_BASE, 1, 1, 0 };
    static const int tsnm_pos = OID_LENGTH(tsnm) - 1;
    netsnmp_request_info *request = NULL;
    netsnmp_table_request_info *info;
    netsnmp_tdata  *table;
    netsnmp_tdata_row *row;
    certToTSN_entry *entry;
    int             ret = SNMP_ERR_NOERROR;

    DEBUGMSGTL(("tlstmCertToSN:handler", "Processing request (mode %s (%d))\n",
                se_find_label_in_slist("agent_mode", reqinfo->mode),
                reqinfo->mode));

    switch (reqinfo->mode) {
    /** ######################################################### GET #####
     *
     *   Read-support (also covers GetNext requests)
     */
    case MODE_GET:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            entry = (certToTSN_entry *) netsnmp_tdata_extract_entry(request);
            info = netsnmp_extract_table_info(request);
            netsnmp_assert(entry && info);

            switch (info->colnum) {
            case COL_SNMPTLSTMCERTTOTSN_FINGERPRINT:
            {
                /*
                 * build SnmpTLSFingerprint
                 */
                u_char bin[42], *ptr = bin;
                size_t len = sizeof(bin);
                int    rc;
                rc = netsnmp_tls_fingerprint_build(entry->hashType,
                                                   entry->fingerprint,
                                                   &ptr, &len, 0);
                if (SNMPERR_SUCCESS != rc)
                    netsnmp_set_request_error(reqinfo, request,
                                              SNMP_ERR_GENERR);
                else
                    snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                             bin, len);
            }
                break;          /* case COL_SNMPTLSTMCERTTOTSN_FINGERPRINT */
            case COL_SNMPTLSTMCERTTOTSN_MAPTYPE:
                tsnm[tsnm_pos] = entry->mapType;
                snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
                                         tsnm, sizeof(tsnm));
                break;          /* case COL_SNMPTLSTMCERTTOTSN_MAPTYPE */
            case COL_SNMPTLSTMCERTTOTSN_DATA:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->data, entry->data_len);
                break;          /* case COL_SNMPTLSTMCERTTOTSN_DATA */
            case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->storageType);
                break;          /* case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE */
            case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->rowStatus);
                break;          /* case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS */
            default:
                netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHOBJECT);
                break;
            }                   /* switch colnum */
        }                       /* for requests */
        break;                  /* case MODE_GET */

        /*
         * Write-support
         */
    /** #################################################### RESERVE1 #####
     *
     *   In RESERVE1 we are just checking basic ASN.1 size/type restrictions.
     * You probably don't need to change any of this code. Don't change any
     * of the column values here. Save that for the ACTION phase.
     *
     *   The next phase is RESERVE2 or FREE.
     */
    case MODE_SET_RESERVE1:
        for (request = requests; request; request = request->next) {
            netsnmp_assert(request->processed == 0);

            entry = (certToTSN_entry *) netsnmp_tdata_extract_entry(request);
            info = netsnmp_extract_table_info(request);

            if ((NULL != entry) && (ST_READONLY == entry->storageType)) {
                ret = SNMP_ERR_NOTWRITABLE;
                break;
            }

            switch (info->colnum) {
            case COL_SNMPTLSTMCERTTOTSN_FINGERPRINT:
                ret = netsnmp_check_vb_type_and_max_size
                    (request->requestvb, ASN_OCTET_STR,
                     sizeof(entry->fingerprint));
                /** check len/algorithm MIB requirements */
                if (ret == SNMP_ERR_NOERROR)
                    ret = netsnmp_cert_check_vb_fingerprint(request->requestvb);
                break;          /* case COL_SNMPTLSTMCERTTOTSN_FINGERPRINT */
            case COL_SNMPTLSTMCERTTOTSN_MAPTYPE:
                ret = netsnmp_check_vb_type_and_max_size
                    (request->requestvb, ASN_OBJECT_ID,
                     SNMPTLSTMCERTTOTSN_MAPTYPE_MAX_SIZE);
                if (ret == SNMP_ERR_NOERROR) {
                    if (_oid2type(request->requestvb->val.objid,
                                  request->requestvb->val_len) >
                        TSNM_tlstmCert_MAX)
                        ret = SNMP_ERR_WRONGVALUE;
                }
                break;          /* case COL_SNMPTLSTMCERTTOTSN_MAPTYPE */
            case COL_SNMPTLSTMCERTTOTSN_DATA:
                ret = netsnmp_check_vb_type_and_max_size
                    (request->requestvb, ASN_OCTET_STR, sizeof(entry->data));
                break;          /* case COL_SNMPTLSTMCERTTOTSN_DATA */
            case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE:
                ret = netsnmp_check_vb_storagetype
                    (request->requestvb,(entry ? entry->storageType : ST_NONE));
                break;          /* case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE */
            case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS:
                ret = netsnmp_check_vb_rowstatus_with_storagetype
                    (request->requestvb,
                     (entry ? entry->rowStatus :RS_NONEXISTENT),
                     (entry ? entry->storageType :ST_NONE));
                break;          /* case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS */
            default:
                ret = SNMP_ERR_NOTWRITABLE;
            }                   /* switch colnum */

            if (ret != SNMP_ERR_NOERROR)
                break;
        }                       /* for requests */
        break;                  /* case MODE_SET_RESERVE1 */

    /** #################################################### RESERVE2 #####
     *
     *   RESERVE2 is for checking additional restrictions from the MIB.
     * Since these restrictions are often in the description of the object,
     * mib2c can't generate code. It's possible that you need to add
     * additional checks here. However, don't change any of the column
     * values here. Save that for the ACTION phase.
     *
     *   The next phase is ACTION or FREE.
     */
    case MODE_SET_RESERVE2:
        for (request = requests; request; request = request->next) {
            netsnmp_assert(request->processed == 0);

            entry = (certToTSN_entry *) netsnmp_tdata_extract_entry(request);
            table = netsnmp_tdata_extract_table(request);
            info = netsnmp_extract_table_info(request);
            /*
             * if no row, create one
             */
            if (!entry) {
                row = tlstmCertToTSNTable_createEntry
                    (table,*info->indexes->val.integer);
                if (!row) {
                    ret = SNMP_ERR_RESOURCEUNAVAILABLE;
                    break;
                }
                entry = row->data;
                _allocUndo(entry);
                if (!entry->undo) {
                    tlstmCertToTSNTable_removeEntry(table, row);
                    row = NULL;
                    ret = SNMP_ERR_RESOURCEUNAVAILABLE;
                    break;
                }
                entry->undo->fate = FATE_NEWLY_CREATED;
                /** associate row with requests */
                netsnmp_insert_tdata_row(request, row);
            }

            /** allocate undo structure, if needed */
            if (!entry->undo) {
                _allocUndo(entry);
                if (!entry->undo) {
                    ret = SNMP_ERR_RESOURCEUNAVAILABLE;
                    break;
                }
            }

            /*
             * save request ptr for column. if we already
             * have a value, bail.
             */
            if (entry->undo->req[info->colnum]) {
                DEBUGMSGT(("tlstmCertToSN:reserve2",
                           "multiple sets to col %d in request\n",
                           info->colnum));
                if (FATE_NEWLY_CREATED == entry->undo->fate)
                    ret = SNMP_ERR_INCONSISTENTNAME;
                else
                    ret = SNMP_ERR_INCONSISTENTVALUE;
                break;
            }
            entry->undo->req[info->colnum] = request;
            if (ret != SNMP_ERR_NOERROR)
                break;
        }                       /* for requests */

        if (ret == SNMP_ERR_NOERROR) {
            /** make sure rowstatus is used to create rows */
            for (request = requests; request; request = request->next) {
                if (request->processed)
                    continue;

                entry = (certToTSN_entry *)
                    netsnmp_tdata_extract_entry(request);
                if ((entry->undo->fate != FATE_NEWLY_CREATED) ||
                    (entry->undo->req[COL_SNMPTLSTMCERTTOTSN_ROWSTATUS]))
                    continue;
                ret = SNMP_ERR_INCONSISTENTNAME;
                break;
            } /* creation for requests */
        } /* no error */
        break;                  /* case MODE_SET_RESERVE2 */

    /** ######################################################## FREE #####
     *
     *   FREE is for cleaning up after a failed request (during either
     * RESERVE1 or RESERVE2). So any allocated resources need to be
     * released.
     *
     *   This the final phase for this path in the state machine.
     */
    case MODE_SET_FREE:
        /*
         * release undo resources
         * remove any newly created rows
         */
        for (request = requests; request; request = request->next) {
            table = netsnmp_tdata_extract_table(request);
            row = netsnmp_tdata_extract_row(request);
            entry = (certToTSN_entry *) netsnmp_tdata_extract_entry(request);

            if (!entry || !entry->undo)
                continue;

            /** disassociate row with requests */
            netsnmp_remove_tdata_row(request, row);

            if (FATE_NEWLY_CREATED == entry->undo->fate)
                tlstmCertToTSNTable_removeEntry(table, row);
            else
                _freeUndo(entry);
        }
        break;                  /* case MODE_SET_FREE */

    /** ###################################################### ACTION #####
     *
     *   In the ACTION phase, we perform any sets that can be undone.
     * (Save anything that can't be undone for the COMMIT phase.)
     *
     *   After individual columns have been done, you should check that the
     * row as a whole is consistent.
     *
     * The next phase is UNDO or COMMIT.
     */
    case MODE_SET_ACTION:
        for (request = requests; request; request = request->next) {
            entry = (certToTSN_entry *) netsnmp_tdata_extract_entry(request);
            info = netsnmp_extract_table_info(request);

            /** reserve2 should enforce this */
            netsnmp_assert(request == entry->undo->req[info->colnum]);

            /*
             * for each col, save old value and the set new value
             */
            switch (info->colnum) {
            case COL_SNMPTLSTMCERTTOTSN_FINGERPRINT:
            {
                u_char *tmp = (u_char*)entry->fingerprint;
                u_int size = sizeof(entry->fingerprint);
                netsnmp_variable_list *vb = request->requestvb;

                memcpy(entry->undo->fingerprint,
                       entry->fingerprint, sizeof(entry->fingerprint));
                entry->undo->fingerprint_len = entry->fingerprint_len;
                entry->undo->hashType = entry->hashType;
                memset(entry->fingerprint, 0, sizeof(entry->fingerprint));

                (void)netsnmp_tls_fingerprint_parse(vb->val.string, vb->val_len,
                                                    (char**)&tmp, &size, 0,
                                                    &entry->hashType);
                entry->fingerprint_len = size;
                if (0 == entry->fingerprint_len)
                    ret = SNMP_ERR_GENERR;
            }
                break;          /* case COL_SNMPTLSTMCERTTOTSN_FINGERPRINT */
            case COL_SNMPTLSTMCERTTOTSN_MAPTYPE:
                entry->undo->mapType = entry->mapType;
                entry->mapType = _oid2type(request->requestvb->val.objid,
                                           request->requestvb->val_len);
                break;          /* case COL_SNMPTLSTMCERTTOTSN_MAPTYPE */
            case COL_SNMPTLSTMCERTTOTSN_DATA:
                memcpy(entry->undo->data, entry->data, sizeof(entry->data));
                entry->undo->data_len = entry->data_len;
                memset(entry->data, 0, sizeof(entry->data));
                memcpy(entry->data, request->requestvb->val.string,
                       request->requestvb->val_len);
                entry->data_len = request->requestvb->val_len;
                break;          /* case COL_SNMPTLSTMCERTTOTSN_DATA */
            case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE:
                entry->undo->storageType = entry->storageType;
                entry->storageType = *request->requestvb->val.integer;
                break;          /* case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE */
            case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS:
                entry->undo->rowStatus = entry->rowStatus;
                entry->rowStatus = *request->requestvb->val.integer;
                break;          /* case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS */
            }                   /* switch colnum */
        }                       /* set values for requests */

        if (ret != SNMP_ERR_NOERROR) 
            break; /* skip consistency if we've already got error */

        /*
         * All columns now have their final values set. check the
         * internal consistency of each row.
         */
        for (request = requests; request; request = request->next) {
            entry = (certToTSN_entry *) netsnmp_tdata_extract_entry(request);
            info = netsnmp_extract_table_info(request);

            if (entry->undo->is_consistent != -1)
                continue;       /* already checked */

            /** assume consistency */
            entry->undo->is_consistent = 1;

            /*
             * per mib, can't have empty fingerprint and must
             * have data if indicated by map type.
             */
            if (0 == entry->fingerprint_len) {
                DEBUGMSGTL(("tlstmCertToTSNTable:inconsistent",
                            "fingerprint must not be empty\n"));
                entry->undo->is_consistent = 0;
            }
            else if ((TSNM_tlstmCertSpecified == entry->mapType) &&
                     (0 == entry->data_len)) {
                DEBUGMSGTL(("tlstmCertToTSNTable:inconsistent",
                            "must specify Data for CertSpecified identity\n"));
                entry->undo->is_consistent = 0;
            }

            if ((RS_IS_ACTIVE(entry->rowStatus)) &&
                ((!entry->undo->req[COL_SNMPTLSTMCERTTOTSN_ROWSTATUS]) ||
                 (RS_IS_ACTIVE(entry->undo->rowStatus)))) {
                /*
                 * per mib, can't modify these while row active
                 */
                char _cols[3] = { COL_SNMPTLSTMCERTTOTSN_FINGERPRINT,
                                  COL_SNMPTLSTMCERTTOTSN_MAPTYPE, COL_SNMPTLSTMCERTTOTSN_DATA };
                int i;
                for (i=0; i < 3; ++i ) {
                    if (!entry->undo->req[i])
                        continue;
                    DEBUGMSGTL(("tlstmCertToTSNTable:inconsistent",
                                "can't modify row %d while active\n",
                                _cols[i]));
                    entry->undo->is_consistent = 0;
                    ret = SNMP_ERR_NOTWRITABLE;
                    request= entry->undo->req[i];
                    break;
                }
            } else if (RS_IS_GOING_ACTIVE(entry->rowStatus)) {
                /*
                 * if going active, inconsistency is fatal
                 */
                if (!entry->undo->is_consistent) {
                    netsnmp_assert(entry->undo->req[COL_SNMPTLSTMCERTTOTSN_ROWSTATUS]);
                    if (FATE_NEWLY_CREATED == entry->undo->fate)
                        ret = SNMP_ERR_INCONSISTENTNAME;
                    else
                        ret = SNMP_ERR_INCONSISTENTVALUE;
                    request = entry->undo->req[COL_SNMPTLSTMCERTTOTSN_ROWSTATUS];
                }
            } else if (RS_DESTROY == entry->rowStatus) {
                /*
                 * can't destroy active row
                 */
                if (RS_IS_ACTIVE(entry->undo->rowStatus)) {
                    DEBUGMSGTL(("tlstmCertToTSNTable:inconsistent",
                                "can't destroy active row\n"));
                    netsnmp_assert(entry->undo->req[COL_SNMPTLSTMCERTTOTSN_ROWSTATUS]);
                    ret = SNMP_ERR_INCONSISTENTVALUE;
                    request = entry->undo->req[COL_SNMPTLSTMCERTTOTSN_ROWSTATUS];
                }
            }
            if (ret != SNMP_ERR_NOERROR)
                break;
        }                       /* consistency for requests */
        break;                  /* case MODE_SET_ACTION */

    /** ######################################################## UNDO #####
     *
     *   UNDO is for cleaning up any failed requests that went through the
     * ACTION phase.
     *
     *   This the final phase for this path in the state machine.
     */
    case MODE_SET_UNDO:
        for (request = requests; request; request = request->next) {
            row = netsnmp_tdata_extract_row(request);
            entry = (certToTSN_entry *) netsnmp_tdata_extract_entry(request);
            info = netsnmp_extract_table_info(request);

            /*
             * skip newly created rows, as we're going to delete
             * them below anyways
             */
            if (FATE_NEWLY_CREATED == entry->undo->fate)
                continue;

            /*
             * restore values
             */
            switch (info->colnum) {
            case COL_SNMPTLSTMCERTTOTSN_FINGERPRINT:
                memcpy(entry->fingerprint, entry->undo->fingerprint,
                       sizeof(entry->fingerprint));
                entry->fingerprint_len = entry->undo->fingerprint_len;
                entry->hashType = entry->undo->hashType;
                break;          /* case COL_SNMPTLSTMCERTTOTSN_FINGERPRINT */
            case COL_SNMPTLSTMCERTTOTSN_MAPTYPE:
                entry->mapType = entry->undo->mapType;
                break;          /* case COL_SNMPTLSTMCERTTOTSN_MAPTYPE */
            case COL_SNMPTLSTMCERTTOTSN_DATA:
                memcpy(entry->data, entry->undo->data, sizeof(entry->data));
                entry->data_len = entry->undo->data_len;
                break;          /* case COL_SNMPTLSTMCERTTOTSN_DATA */
            case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE:
                entry->storageType = entry->undo->storageType;
                break;          /* case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE */
            case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS:
                entry->rowStatus = entry->undo->rowStatus;
                break;          /* case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS */
            }                   /* switch colnum */
        }                       /* for requests */

        /*
         * release undo data
         * or remove any newly created rows
         */
        for (request = requests; request; request = request->next) {
            table = netsnmp_tdata_extract_table(request);
            row = netsnmp_tdata_extract_row(request);
            entry = (certToTSN_entry *) netsnmp_tdata_extract_entry(request);

            if (!entry || !entry->undo)
                continue;

            /** disassociate row with requests */
            netsnmp_remove_tdata_row(request, row);

            if (FATE_NEWLY_CREATED == entry->undo->fate)
                tlstmCertToTSNTable_removeEntry(table, row);
            else
                _freeUndo(entry);
        }                       /* for requests */
        break;                  /* case MODE_SET_UNDO */

    /** ###################################################### COMMIT #####
     *
     *   COMMIT is the final success state, when all changes are finalized.
     * There is not recovery state should something faile here.
     *
     *   This the final phase for this path in the state machine.
     */
    case MODE_SET_COMMIT:
        for (request = requests; request; request = request->next) {
            row = netsnmp_tdata_extract_row(request);
            table = netsnmp_tdata_extract_table(request);
            info = netsnmp_extract_table_info(request);
            entry = (certToTSN_entry *) netsnmp_tdata_extract_entry(request);

            if ((RS_NOTREADY == entry->rowStatus) && entry->undo->is_consistent)
                entry->rowStatus = RS_NOTINSERVICE;
            else if ((RS_NOTINSERVICE == entry->rowStatus) &&
                     (0 == entry->undo->is_consistent))
                entry->rowStatus = RS_NOTREADY;

            /** release undo data for requests with no rowstatus */
            if (entry->undo && !entry->undo->req[COL_SNMPTLSTMCERTTOTSN_ROWSTATUS]) {
                _freeUndo(entry);
                if ((0 == entry->map_flags) && (entry->rowStatus == RS_ACTIVE))
                    _cert_map_add(entry);
                else if ((0 != entry->map_flags) &&
                         (entry->rowStatus == RS_DESTROY))
                    _cert_map_remove(entry);
            }

            switch (info->colnum) {
            case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS:
                switch (entry->rowStatus) {
                case RS_CREATEANDGO:
                    /** Fall-through */
                case RS_ACTIVE:
                    netsnmp_assert(entry->undo->is_consistent);
                    entry->rowStatus = RS_ACTIVE;
                    if (0 == entry->map_flags)
                        _cert_map_add(entry);
                    break;

                case RS_CREATEANDWAIT:
                    /** Fall-through */
                case RS_NOTINSERVICE:
                    /** simply set status based on consistency */
                    if (entry->undo->is_consistent)
                        entry->rowStatus = RS_NOTINSERVICE;
                    else
                        entry->rowStatus = RS_NOTREADY;
                    if (0 != entry->map_flags)
                        _cert_map_remove(entry);
                    break;

                case RS_DESTROY:
                    /** remove from cert map */
                    if (0 != entry->map_flags)
                        _cert_map_remove(entry);
                    /** disassociate row with requests */
                    netsnmp_remove_tdata_row(request, row);
                    tlstmCertToTSNTable_removeEntry(table, row);
                    row = NULL;
                    entry = NULL;
                }
                /** release undo data */
                _freeUndo(entry);
                break;          /* case COL_SNMPTLSTMCERTTOTSN_ROWSTATUS */

            case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE:
                if (RS_ACTIVE == entry->rowStatus)
                    _cert_map_tweak_storage(entry);
                break;          /* case COL_SNMPTLSTMCERTTOTSN_STORAGETYPE */

            case COL_SNMPTLSTMCERTTOTSN_FINGERPRINT:
            case COL_SNMPTLSTMCERTTOTSN_MAPTYPE:
            case COL_SNMPTLSTMCERTTOTSN_DATA:
                break;
            }                   /* switch colnum */

        }                       /* for requests */

        /** update last changed */
        _last_changed = netsnmp_get_agent_uptime();

        /** set up to save persistent store */
        snmp_store_needed(NULL);

        break;                  /* case MODE_SET_COMMIT */
    }                           /* switch (reqinfo->mode) */

    if (ret != SNMP_ERR_NOERROR)
        netsnmp_set_request_error(reqinfo, request, ret);

    return SNMP_ERR_NOERROR;
}
/** handles requests for the expObjectTable table */
int
expObjectTable_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 expObject           *entry;
    struct expExpression       *exp;
    char   expOwner[EXP_STR1_LEN+1];
    char   expName[ EXP_STR1_LEN+1];
    long   objIndex;
    long   ret;
    netsnmp_variable_list *vp;

    DEBUGMSGTL(("disman:expr:mib", "Expression Object 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 expObject *)netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);
            if (!entry || !(entry->flags & EXP_OBJ_FLAG_VALID))
                continue;

            switch (tinfo->colnum) {
            case COLUMN_EXPOBJECTID:
                snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
                              (u_char *) entry->expObjectID,
                                         entry->expObjectID_len*sizeof(oid));
                break;
            case COLUMN_EXPOBJECTIDWILDCARD:
                ret = (entry->flags & EXP_OBJ_FLAG_OWILD) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_EXPOBJECTSAMPLETYPE:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->expObjectSampleType);
                break;
            case COLUMN_EXPOBJECTDELTADISCONTINUITYID:
                /*
                 * "This object [and the next two] are instantiated only if
                 *  expObjectSampleType is 'deltaValue' or 'changedValue'"
                 */
                if ( entry->expObjectSampleType == 1 )
                    continue;
                snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
                              (u_char *) entry->expObjDeltaD,
                                         entry->expObjDeltaD_len*sizeof(oid));
                break;
            case COLUMN_EXPOBJECTDISCONTINUITYIDWILDCARD:
                if ( entry->expObjectSampleType == 1 )
                    continue;
                ret = (entry->flags & EXP_OBJ_FLAG_DWILD) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_EXPOBJECTDISCONTINUITYIDTYPE:
                if ( entry->expObjectSampleType == 1 )
                    continue;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->expObjDiscontinuityType);
                break;
            case COLUMN_EXPOBJECTCONDITIONAL:
                snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
                              (u_char *) entry->expObjCond,
                                         entry->expObjCond_len*sizeof(oid));
                break;
            case COLUMN_EXPOBJECTCONDITIONALWILDCARD:
		ret = (entry->flags & EXP_OBJ_FLAG_CWILD) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_EXPOBJECTENTRYSTATUS:
                /* What would indicate 'notReady' ? */
                ret = (entry->flags & EXP_OBJ_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 expObject *)
                netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_EXPOBJECTID:
            case COLUMN_EXPOBJECTDELTADISCONTINUITYID:
            case COLUMN_EXPOBJECTCONDITIONAL:
                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_EXPOBJECTIDWILDCARD:
            case COLUMN_EXPOBJECTDISCONTINUITYIDWILDCARD:
            case COLUMN_EXPOBJECTCONDITIONALWILDCARD:
                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_EXPOBJECTSAMPLETYPE:
            case COLUMN_EXPOBJECTDISCONTINUITYIDTYPE:
                ret = netsnmp_check_vb_int_range(request->requestvb, 1, 3);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;

            case COLUMN_EXPOBJECTENTRYSTATUS:
                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;
                }
                break;
            default:
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOTWRITABLE);
                return SNMP_ERR_NOERROR;
            }
        }
        break;

    case MODE_SET_RESERVE2:
        for (request = requests; request; request = request->next) {
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_EXPOBJECTENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Create an (empty) new row structure
                     */
                    memset(expOwner, 0, sizeof(expOwner));
                    memcpy(expOwner, tinfo->indexes->val.string,
                                     tinfo->indexes->val_len);
                    memset(expName,  0, sizeof(expName));
                    memcpy(expName,
                           tinfo->indexes->next_variable->val.string,
                           tinfo->indexes->next_variable->val_len);
                    vp = tinfo->indexes->next_variable->next_variable;
                    objIndex = *vp->val.integer;

                    row = expObject_createRow(expOwner, expName, objIndex, 0);
                    if (!row) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_RESOURCEUNAVAILABLE);
                        return SNMP_ERR_NOERROR;
                    }
                    netsnmp_insert_tdata_row( request, row );
                }
            }
        }
        break;

    case MODE_SET_FREE:
        for (request = requests; request; request = request->next) {
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_EXPOBJECTENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Tidy up after a failed row creation request
                     */ 
                    entry = (struct expObject *)
                                netsnmp_tdata_extract_entry(request);
                    if (entry &&
                      !(entry->flags & EXP_OBJ_FLAG_VALID)) {
                        row = (netsnmp_tdata_row *)
                                netsnmp_tdata_extract_row(request);
                        expObject_removeEntry( row );
                    }
                }
            }
        }
        break;

    case MODE_SET_ACTION:
        for (request = requests; request; request = request->next) {
            tinfo = netsnmp_extract_table_info(request);
            entry = (struct expObject *)
                    netsnmp_tdata_extract_entry(request);
            if (!entry) {
                /*
                 * New rows must be created via the RowStatus column
                 */
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOCREATION);
                                      /* or inconsistentName? */
                return SNMP_ERR_NOERROR;

            }
        }
        break;

    case MODE_SET_UNDO:
        break;

    case MODE_SET_COMMIT:
        /*
         * All these assignments are "unfailable", so it's
         *  (reasonably) safe to apply them in the Commit phase
         */
        ret = 0;  /* Flag to re-check expExpressionPrefix settings */
        for (request = requests; request; request = request->next) {
            entry = (struct expObject *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_EXPOBJECTID:
                memset(entry->expObjectID, 0, sizeof(entry->expObjectID));
                memcpy(entry->expObjectID, request->requestvb->val.string,
                                           request->requestvb->val_len);
                entry->expObjectID_len = request->requestvb->val_len;
                break;
            case COLUMN_EXPOBJECTIDWILDCARD:
                if (*request->requestvb->val.integer == TV_TRUE)
                    entry->flags |=  EXP_OBJ_FLAG_OWILD;
                else
                    entry->flags &= ~EXP_OBJ_FLAG_OWILD;
                break;
            case COLUMN_EXPOBJECTSAMPLETYPE:
                entry->expObjectSampleType = *request->requestvb->val.integer;
                break;
            case COLUMN_EXPOBJECTDELTADISCONTINUITYID:
                memset(entry->expObjDeltaD, 0, sizeof(entry->expObjDeltaD));
                memcpy(entry->expObjDeltaD, request->requestvb->val.string,
                                            request->requestvb->val_len);
                entry->expObjDeltaD_len = request->requestvb->val_len/sizeof(oid);
               /* XXX
                if ( snmp_oid_compare( entry->expObjDeltaD,
                                       entry->expObjDeltaD_len, 
                                       sysUpTime_inst,
                                       sysUpTime_inst_len ) != 0 )
                    entry->flags |= EXP_OBJ_FLAG_DDISC;
               */

                /*
                 * If the OID used for the expExpressionPrefix object
                 *   has changed, then update the expression structure.
                 */
                if ( entry->flags & EXP_OBJ_FLAG_PREFIX ) {
                    exp = expExpression_getEntry( entry->expOwner,
                                                  entry->expName );
                    memcpy( exp->expPrefix, entry->expObjDeltaD,
                            MAX_OID_LEN*sizeof(oid));
                    exp->expPrefix_len = entry->expObjDeltaD_len;
                }
                break;
            case COLUMN_EXPOBJECTDISCONTINUITYIDWILDCARD:
                if (*request->requestvb->val.integer == TV_TRUE) {
                    /*
                     * Possible new prefix OID candidate
                     * Can't set the value here, since the OID
                     *    assignment might not have been processed yet.
                     */
                    exp = expExpression_getEntry( entry->expOwner,
                                                  entry->expName );
                    if (exp && exp->expPrefix_len == 0 )
                        ret = 1;   /* Set the prefix later  */
                    entry->flags |=  EXP_OBJ_FLAG_DWILD;
                } else {
                    if ( entry->flags | EXP_OBJ_FLAG_PREFIX ) {
                        exp = expExpression_getEntry( entry->expOwner,
                                                      entry->expName );
                        memset( exp->expPrefix, 0, MAX_OID_LEN*sizeof(oid));
                        exp->expPrefix_len = 0;
                        ret = 1;   /* Need a new prefix OID */
                    }
                    entry->flags &= ~EXP_OBJ_FLAG_DWILD;
                }
                break;
            case COLUMN_EXPOBJECTDISCONTINUITYIDTYPE:
                entry->expObjDiscontinuityType =
                           *request->requestvb->val.integer;
                break;
            case COLUMN_EXPOBJECTCONDITIONAL:
                memset(entry->expObjCond, 0, sizeof(entry->expObjCond));
                memcpy(entry->expObjCond, request->requestvb->val.string,
                                          request->requestvb->val_len);
                entry->expObjCond_len = request->requestvb->val_len/sizeof(oid);
                break;
            case COLUMN_EXPOBJECTCONDITIONALWILDCARD:
                if (*request->requestvb->val.integer == TV_TRUE)
                    entry->flags |=  EXP_OBJ_FLAG_CWILD;
                else
                    entry->flags &= ~EXP_OBJ_FLAG_CWILD;
                break;
            case COLUMN_EXPOBJECTENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_ACTIVE:
                    entry->flags |= EXP_OBJ_FLAG_ACTIVE;
                    break;
                case RS_NOTINSERVICE:
                    entry->flags &= ~EXP_OBJ_FLAG_ACTIVE;
                    break;
                case RS_CREATEANDGO:
                    entry->flags |= EXP_OBJ_FLAG_ACTIVE;
                    entry->flags |= EXP_OBJ_FLAG_VALID;
                    break;
                case RS_CREATEANDWAIT:
                    entry->flags |= EXP_OBJ_FLAG_VALID;
                    break;

                case RS_DESTROY:
                    row = (netsnmp_tdata_row *)
                               netsnmp_tdata_extract_row(request);
                    expObject_removeEntry(row);
                }
            }
        }

        /*
         * Need to check for changes in expExpressionPrefix handling
         */
        for (request = requests; request; request = request->next) {
            entry = (struct expObject *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_EXPOBJECTDISCONTINUITYIDWILDCARD:
                /*
                 * If a column has just been marked as wild,
                 *   then consider using it as the prefix OID
                 */
                if (*request->requestvb->val.integer == TV_TRUE) {
                    exp = expExpression_getEntry( entry->expOwner,
                                                  entry->expName );
                    if ( exp->expPrefix_len == 0 ) {
                        memcpy( exp->expPrefix, entry->expObjDeltaD,
                                MAX_OID_LEN*sizeof(oid));
                        exp->expPrefix_len = entry->expObjDeltaD_len;
                        entry->flags |= EXP_OBJ_FLAG_PREFIX;
                    }
                }
                /*
                 * If it's just been marked as non-wildcarded
                 *   then we need to look for a new candidate.
                 */
                else {

                }
                break;
            }
        }
        break;
    }
    DEBUGMSGTL(("disman:expr:mib", "Expression Object handler - done \n"));
    return SNMP_ERR_NOERROR;
}
Exemplo n.º 4
0
/** handles requests for the expExpressionTable table */
int
expExpressionTable_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 expExpression       *entry;
    char   expOwner[EXP_STR1_LEN+1];
    char   expName[ EXP_STR1_LEN+1];
    long   ret;

    DEBUGMSGTL(("disman:expr:mib", "Expression 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) {
            if (request->processed)
                continue;

            entry = (struct expExpression *)
                    netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);
            if (!entry || !(entry->flags & EXP_FLAG_VALID))
                continue;

            switch (tinfo->colnum) {
            case COLUMN_EXPEXPRESSION:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                (u_char*)entry->expExpression,
                                  strlen(entry->expExpression));
                break;
            case COLUMN_EXPEXPRESSIONVALUETYPE:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->expValueType);
                break;
            case COLUMN_EXPEXPRESSIONCOMMENT:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                (u_char*)entry->expComment,
                                  strlen(entry->expComment));
                break;
            case COLUMN_EXPEXPRESSIONDELTAINTERVAL:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->expDeltaInterval);
                break;
            case COLUMN_EXPEXPRESSIONPREFIX:
                /*
                 * XXX - Need to search expObjectTable for a suitable OID
                 */
                /*
                 * Empty OIDs (len=0) are converted into .0.0
                 *   by the SNMP library automatically :-(
                 */
                if ( entry->expPrefix_len ) {
                    snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
                              (u_char *) entry->expPrefix,
                                         entry->expPrefix_len*sizeof(oid));
                } else {
                    /* XXX - possibly not needed */
                    request->requestvb->type    = ASN_OBJECT_ID;
                    request->requestvb->val_len = 0;
                }
                break;
            case COLUMN_EXPEXPRESSIONERRORS:
                snmp_set_var_typed_integer(request->requestvb, ASN_COUNTER,
                                           entry->expErrorCount);
                break;
            case COLUMN_EXPEXPRESSIONENTRYSTATUS:
                /* What would indicate 'notReady' ? */
                ret = (entry->flags & EXP_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) {
            if (request->processed)
                continue;

            entry = (struct expExpression *)
                netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_EXPEXPRESSION:
                ret = netsnmp_check_vb_type_and_max_size(
                          request->requestvb, ASN_OCTET_STR, EXP_STR3_LEN);
                /* XXX - check new expression is syntactically valid */
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_EXPEXPRESSIONVALUETYPE:
                ret = netsnmp_check_vb_int_range(request->requestvb, 1, 8);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_EXPEXPRESSIONCOMMENT:
                ret = netsnmp_check_vb_type_and_max_size(
                          request->requestvb, ASN_OCTET_STR, EXP_STR2_LEN);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_EXPEXPRESSIONDELTAINTERVAL:
                ret = netsnmp_check_vb_int_range(request->requestvb, 0, 86400);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_EXPEXPRESSIONENTRYSTATUS:
                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;
                }
                break;
            default:
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOTWRITABLE);
                return SNMP_ERR_NOERROR;
            }
        }
        break;

    case MODE_SET_RESERVE2:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_EXPEXPRESSIONENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Create an (empty) new row structure
                     */
                    memset(expOwner, 0, sizeof(expOwner));
                    memcpy(expOwner, tinfo->indexes->val.string,
                                     tinfo->indexes->val_len);
                    memset(expName,  0, sizeof(expName));
                    memcpy(expName,
                           tinfo->indexes->next_variable->val.string,
                           tinfo->indexes->next_variable->val_len);

                    row = expExpression_createRow(expOwner, expName, 0);
                    if (!row) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_RESOURCEUNAVAILABLE);
                        return SNMP_ERR_NOERROR;
                    }
                    netsnmp_insert_tdata_row( request, row );
                }
            }
        }
        break;

    case MODE_SET_FREE:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_EXPEXPRESSIONENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Tidy up after a failed row creation request
                     */ 
                    entry = (struct expExpression *)
                                netsnmp_tdata_extract_entry(request);
                    if (entry &&
                      !(entry->flags & EXP_FLAG_VALID)) {
                        row = (netsnmp_tdata_row *)
                                netsnmp_tdata_extract_row(request);
                        expExpression_removeEntry( row );
                    }
                }
            }
        }
        break;

    case MODE_SET_ACTION:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);
            entry = (struct expExpression *)
                    netsnmp_tdata_extract_entry(request);
            if (!entry) {
                /*
                 * New rows must be created via the RowStatus column
                 */
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOCREATION);
                                      /* or inconsistentName? */
                return SNMP_ERR_NOERROR;

            }
        }
        break;

    case MODE_SET_UNDO:
        break;

    case MODE_SET_COMMIT:
        /*
         * All these assignments are "unfailable", so it's
         *  (reasonably) safe to apply them in the Commit phase
         */
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            entry = (struct expExpression *)
                netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_EXPEXPRESSION:
                memset(entry->expExpression, 0, EXP_STR3_LEN+1);
                memcpy(entry->expExpression,
                       request->requestvb->val.string,
                       request->requestvb->val_len);
                break;
            case COLUMN_EXPEXPRESSIONVALUETYPE:
                entry->expValueType = *request->requestvb->val.integer;
                break;
            case COLUMN_EXPEXPRESSIONCOMMENT:
                memset(entry->expComment, 0, EXP_STR2_LEN+1);
                memcpy(entry->expComment,
                       request->requestvb->val.string,
                       request->requestvb->val_len);
                break;
            case COLUMN_EXPEXPRESSIONDELTAINTERVAL:
                entry->expDeltaInterval = *request->requestvb->val.integer;
                break;
            case COLUMN_EXPEXPRESSIONENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_ACTIVE:
                    entry->flags |= EXP_FLAG_ACTIVE;
                    expExpression_enable( entry );
                    break;
                case RS_NOTINSERVICE:
                    entry->flags &= ~EXP_FLAG_ACTIVE;
                    expExpression_disable( entry );
                    break;
                case RS_CREATEANDGO:
                    entry->flags |= EXP_FLAG_ACTIVE;
                    entry->flags |= EXP_FLAG_VALID;
                    entry->session =
                        netsnmp_iquery_pdu_session(reqinfo->asp->pdu);
                    expExpression_enable( entry );
                    break;
                case RS_CREATEANDWAIT:
                    entry->flags |= EXP_FLAG_VALID;
                    entry->session =
                        netsnmp_iquery_pdu_session(reqinfo->asp->pdu);
                    break;

                case RS_DESTROY:
                    row = (netsnmp_tdata_row *)
                               netsnmp_tdata_extract_row(request);
                    expExpression_removeEntry(row);
                }
            }
        }
        break;
    }
    DEBUGMSGTL(("disman:expr:mib", "Expression Table handler - done \n"));
    return SNMP_ERR_NOERROR;
}
Exemplo n.º 5
0
/** handles requests for the mteEventTable table */
int
mteEventTable_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 mteEvent            *entry;
    char mteOwner[MTE_STR1_LEN+1];
    char mteEName[MTE_STR1_LEN+1];
    long ret;

    DEBUGMSGTL(("disman:event:mib", "Event 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) {
            if (request->processed)
                continue;

            entry = (struct mteEvent *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);
            if (!entry || !(entry->flags & MTE_EVENT_FLAG_VALID))
                continue;

            switch (tinfo->colnum) {
            case COLUMN_MTEEVENTCOMMENT:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->mteEventComment,
                                  strlen(entry->mteEventComment));
                break;
            case COLUMN_MTEEVENTACTIONS:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                        &entry->mteEventActions, 1);
                break;
            case COLUMN_MTEEVENTENABLED:
                ret = (entry->flags & MTE_EVENT_FLAG_ENABLED ) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_MTEEVENTENTRYSTATUS:
                ret = (entry->flags & MTE_EVENT_FLAG_ACTIVE ) ?
                           RS_ACTIVE : RS_NOTINSERVICE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            }
        }
        break;


#ifndef NETSNMP_NO_WRITE_SUPPORT
        /*
         * Write-support
         */
    case MODE_SET_RESERVE1:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            entry = (struct mteEvent *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTEEVENTCOMMENT:
                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;
                }
                /*
                 * Can't modify the comment of an active row
                 *   (No good reason for this, but that's what the MIB says!)
                 */
                if (entry &&
                    entry->flags & MTE_EVENT_FLAG_ACTIVE ) {
                    netsnmp_set_request_error(reqinfo, request,
                                              SNMP_ERR_INCONSISTENTVALUE);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTEEVENTACTIONS:
                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;
                }
                /*
                 * Can't modify the event types of an active row
                 *   (A little more understandable perhaps,
                 *    but still an unnecessary restriction IMO)
                 */
                if (entry &&
                    entry->flags & MTE_EVENT_FLAG_ACTIVE ) {
                    netsnmp_set_request_error(reqinfo, request,
                                              SNMP_ERR_INCONSISTENTVALUE);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTEEVENTENABLED:
                ret = netsnmp_check_vb_truthvalue(request->requestvb);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                /*
                 * The published version of the Event MIB forbids
                 *   enabling (or disabling) an active row, which
                 *   would make this object completely pointless!
                 * Fortunately this ludicrous decision has since been corrected.
                 */
                break;

            case COLUMN_MTEEVENTENTRYSTATUS:
                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;
                }
                /* An active row can only be deleted */
                if (entry &&
                    entry->flags & MTE_EVENT_FLAG_ACTIVE &&
                    *request->requestvb->val.integer == RS_NOTINSERVICE ) {
                    netsnmp_set_request_error(reqinfo, request,
                                              SNMP_ERR_INCONSISTENTVALUE);
                    return SNMP_ERR_NOERROR;
                }
                break;
            default:
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOTWRITABLE);
                return SNMP_ERR_NOERROR;
            }
        }
        break;

    case MODE_SET_RESERVE2:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTEEVENTENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Create an (empty) new row structure
                     */
                    memset(mteOwner, 0, sizeof(mteOwner));
                    memcpy(mteOwner, tinfo->indexes->val.string,
                                     tinfo->indexes->val_len);
                    memset(mteEName, 0, sizeof(mteEName));
                    memcpy(mteEName,
                           tinfo->indexes->next_variable->val.string,
                           tinfo->indexes->next_variable->val_len);

                    row = mteEvent_createEntry(mteOwner, mteEName, 0);
                    if (!row) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_RESOURCEUNAVAILABLE);
                        return SNMP_ERR_NOERROR;
                    }
                    netsnmp_insert_tdata_row( request, row );
                }
            }
        }
        break;

    case MODE_SET_FREE:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTEEVENTENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Tidy up after a failed row creation request
                     */ 
                    entry = (struct mteEvent *)
                                netsnmp_tdata_extract_entry(request);
                    if (entry &&
                      !(entry->flags & MTE_EVENT_FLAG_VALID)) {
                        row = (netsnmp_tdata_row *)
                                netsnmp_tdata_extract_row(request);
                        mteEvent_removeEntry( row );
                    }
                }
            }
        }
        break;

    case MODE_SET_ACTION:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);
            entry = (struct mteEvent *) netsnmp_tdata_extract_entry(request);
            if (!entry) {
                /*
                 * New rows must be created via the RowStatus column
                 */
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOCREATION);
                                      /* or inconsistentName? */
                return SNMP_ERR_NOERROR;

            }
        }
        break;

    case MODE_SET_UNDO:
        break;

    case MODE_SET_COMMIT:
        /*
         * All these assignments are "unfailable", so it's
         *  (reasonably) safe to apply them in the Commit phase
         */
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            entry = (struct mteEvent *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTEEVENTCOMMENT:
                memset(entry->mteEventComment, 0,
                       sizeof(entry->mteEventComment));
                memcpy(entry->mteEventComment,
                       request->requestvb->val.string,
                       request->requestvb->val_len);
                break;

            case COLUMN_MTEEVENTACTIONS:
                entry->mteEventActions = request->requestvb->val.string[0];
                break;

            case COLUMN_MTEEVENTENABLED:
                if (*request->requestvb->val.integer == TV_TRUE)
                    entry->flags |=  MTE_EVENT_FLAG_ENABLED;
                else
                    entry->flags &= ~MTE_EVENT_FLAG_ENABLED;
                break;

            case COLUMN_MTEEVENTENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_ACTIVE:
                    entry->flags |= MTE_EVENT_FLAG_ACTIVE;
                    break;
                case RS_CREATEANDGO:
                    entry->flags |= MTE_EVENT_FLAG_ACTIVE;
                    /* fall-through */
                case RS_CREATEANDWAIT:
                    entry->flags |= MTE_EVENT_FLAG_VALID;
                    entry->session =
                        netsnmp_iquery_pdu_session(reqinfo->asp->pdu);
                    break;

                case RS_DESTROY:
                    row = (netsnmp_tdata_row *)
                               netsnmp_tdata_extract_row(request);
                    mteEvent_removeEntry(row);
                }
            }
        }
        break;
#endif /* !NETSNMP_NO_WRITE_SUPPORT */

    }
    DEBUGMSGTL(("disman:event:mib", "Table handler, done\n"));
    return SNMP_ERR_NOERROR;
}
int
CcspTableHelperSetMibValues
	(
        ANSC_HANDLE                 hThisObject,
        netsnmp_agent_request_info  *reqinfo,
        netsnmp_request_info		*requests
	)
{
	PCCSP_TABLE_HELPER_OBJECT       pThisObject     = (PCCSP_TABLE_HELPER_OBJECT)hThisObject;
	PCCSP_TABLE_ENTRY				pEntry          = (PCCSP_TABLE_ENTRY)NULL;
	PCCSP_MIB_VALUE                 pMibValueObj    = (PCCSP_MIB_VALUE)NULL;
    netsnmp_request_info            *request		= NULL;
	netsnmp_table_request_info*     table_info      = NULL;
	netsnmp_tdata*					table_data      = NULL;
	netsnmp_tdata_row*			    table_row       = NULL;
    netsnmp_variable_list           *requestvb		= NULL;
    netsnmp_variable_list           *next    		= NULL;
	PCCSP_MIB_MAPPING				pMapping        = NULL;
    oid                             subid			= 0;
	int								ret             = 0;
	int                             i               = 0;
	ULONG                           indexes[8]      = { 0 };

	AnscTraceInfo(("Enter 'CcspTableHelperSetMibValues' with mode = %d\n", reqinfo->mode));

	switch( reqinfo->mode)
	{
		case MODE_SET_RESERVE1:

			for (request = requests; request != NULL; request = request->next) 
			{
				if( request->processed != 0) { continue;}

				pEntry = (PCCSP_TABLE_ENTRY)netsnmp_tdata_extract_entry(request);
				table_info = netsnmp_extract_table_info(request);

				requestvb = request->requestvb;
				subid     = table_info->colnum;

				pMapping  = CcspUtilLookforMibMapWithOid(&pThisObject->MibObjQueue, subid);

				if( subid == pThisObject->uRowStatus)
				{
					ret = netsnmp_check_vb_rowstatus( requestvb, (pEntry? RS_ACTIVE: RS_NONEXISTENT));

					if( ret != SNMP_ERR_NOERROR)
					{
						netsnmp_set_request_error(reqinfo, request, ret);

						return SNMP_ERR_NOERROR;
					}

					/* somehow the Destroy was not checked correctly above */
					if( pEntry == NULL && *requestvb->val.integer == RS_DESTROY)
					{
						netsnmp_set_request_error(reqinfo, request, SNMP_ERR_BADVALUE);

						return SNMP_ERR_NOERROR;
					}
				}
				else if( pMapping)
				{
					ret = verifyTypeAndValueInSetReserved1(request->requestvb, pMapping);

					if( ret != SNMP_ERR_NOERROR)
					{
						netsnmp_set_request_error(reqinfo, request, ret);

						return SNMP_ERR_NOERROR;
					}
				}
				else
				{
					netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHOBJECT);
					return SNMP_ERR_NOERROR;
				}
			}

			break;

		case MODE_SET_RESERVE2:

			for (request = requests; request != NULL; request = request->next) 
			{
				if( request->processed != 0) { continue;}

				pEntry = (PCCSP_TABLE_ENTRY)netsnmp_tdata_extract_entry(request);
				table_info = netsnmp_extract_table_info(request);
				table_data = netsnmp_tdata_extract_table(request);

				requestvb = request->requestvb;
				subid     = table_info->colnum;

				if( subid == pThisObject->uRowStatus)
				{
					if( RS_CREATEANDGO == *requestvb->val.integer || RS_CREATEANDWAIT == *requestvb->val.integer)
					{
						next = table_info->indexes;

						for( i = 0; i < table_info->number_indexes; i ++)
						{
							indexes[i] = *next->val.integer;
							next = next->next_variable;

							if( next == NULL) break;
						}

						table_row = CcspUtilCreateMibEntry( table_data, indexes, table_info->number_indexes, FALSE);

						if( table_row)
						{
							/* create entry at CCSP back-end */
							if(!CcspUtilCreateCosaEntry((ANSC_HANDLE)pThisObject, indexes, table_info->number_indexes))
							{
								AnscTraceError(("Failed to Add COSA Entry at back-end.\n"));
							}

							pEntry = (PCCSP_TABLE_ENTRY)table_row->data;

							/* the indexes array is the array of CCSP instance numbers */
							for( i = 0; i < table_info->number_indexes; i ++)
							{
								pEntry->IndexValue[i].Value.iValue = indexes[i];
							}

							pEntry->IndexCount = table_info->number_indexes;

							/* init the value array */
							CcspUtilInitMibValueArray(&pThisObject->MibObjQueue, &pEntry->MibValueQueue);

							netsnmp_insert_tdata_row(request, table_row);
						}
						else
						{
							netsnmp_set_request_error(reqinfo, request, SNMP_ERR_RESOURCEUNAVAILABLE);

							return SNMP_ERR_NOERROR;
						}
					}
				}
			}

			/* collect all the updated values and call Cosa_SetParamValues with Commit = FALSE */
			return tableGroupSetReserve2(hThisObject, reqinfo, requests);

			break;

		case MODE_SET_ACTION:

			if( pThisObject->pCcspComp != NULL && pThisObject->pCcspPath)
			{
				/* commit the update */
				if (pThisObject->bBackground) 
				{
					Cosa_BackgroundCommit(pThisObject->pCcspComp, pThisObject->pCcspPath, TRUE);
					pThisObject->bBackground = 0;
                                        struct timespec delay = {0, 80000000};
                                        nanosleep(&delay, NULL);
				}
				else
				{
					Cosa_SetCommit(pThisObject->pCcspComp, pThisObject->pCcspPath, TRUE);
				}
			}

			for (request = requests; request != NULL; request = request->next) 
			{
				if( request->processed != 0) { continue;}

				pEntry = (PCCSP_TABLE_ENTRY)netsnmp_tdata_extract_entry(request);

				if(pEntry)
				{
					table_info = netsnmp_extract_table_info(request);
					table_row  = netsnmp_tdata_extract_row(request);
					table_data = netsnmp_tdata_extract_table(request);

					requestvb = request->requestvb;
					subid     = table_info->colnum;

					if( subid == pThisObject->uRowStatus)
					{
						pMibValueObj = CcspUtilLookforMibValueObjWithOid(&pEntry->MibValueQueue, subid);

						switch(*requestvb->val.integer)
						{
							case RS_CREATEANDGO:
								pEntry->valid = 1;
							case RS_ACTIVE:
								if( pMibValueObj) pMibValueObj->Value.uValue = RS_ACTIVE;
									break;
							case RS_CREATEANDWAIT:
								pEntry->valid = 1;
							case RS_NOTINSERVICE:
								if( pMibValueObj) pMibValueObj->Value.uValue = RS_NOTINSERVICE;
								break;
							case RS_DESTROY:

								for( i = 0; i < pEntry->IndexCount; i ++)
								{
									indexes[i] = pEntry->IndexValue[i].Value.uValue;
								}

								/* remove the entry at the back-end */
								if(!CcspUtilDeleteCosaEntry((ANSC_HANDLE)pThisObject, indexes, pEntry->IndexCount))
								{
									AnscTraceWarning(("Failed to delete DM entry.\n"));
								}

								CcspUtilRemoveMibEntry(table_data,table_row);

								break;
						}
					}
				}
			}

			return SNMP_ERR_NOERROR;

		case MODE_SET_FREE:

			if( pThisObject->pCcspComp != NULL && pThisObject->pCcspPath)
			{
				/* don't commit the update */
				Cosa_SetCommit(pThisObject->pCcspComp, pThisObject->pCcspPath, FALSE);
			}

		   return tableGroupSetFree(hThisObject, reqinfo, requests); 

		case MODE_SET_COMMIT:
		case MODE_SET_UNDO:
		default:

			/* we don't care about them */
			return SNMP_ERR_NOERROR;
	}

    return SNMP_ERR_NOERROR;
}
static
int
tableGroupSetFree
	(
        ANSC_HANDLE                 hThisObject,
        netsnmp_agent_request_info  *reqinfo,
        netsnmp_request_info		*requests
	)
{
	PCCSP_TABLE_HELPER_OBJECT       pThisObject     = (PCCSP_TABLE_HELPER_OBJECT)hThisObject;
	PCCSP_MIB_VALUE                 pMibValueObj    = (PCCSP_MIB_VALUE)NULL;
    netsnmp_request_info            *request		= NULL;
    netsnmp_variable_list           *requestvb		= NULL;
    oid                             subid			= 0;
	PCCSP_TABLE_ENTRY				pEntry          = (PCCSP_TABLE_ENTRY)NULL;
	netsnmp_table_request_info*     table_info      = NULL;
	netsnmp_tdata*					table_data      = NULL;
	netsnmp_tdata_row*			    table_row       = NULL;
	ULONG                           indexes[8]      = { 0 };
	ULONG							i				= 0;

	AnscTraceInfo(("Enter 'tableGroupSetFree'\n"));

#if 0
	/* check whether Rowstatus is involved */
	for (request = requests; request != NULL; request = request->next) 
	{
		if( request->processed != 0) { continue;}

		pEntry = (PCCSP_TABLE_ENTRY)netsnmp_tdata_extract_entry(request);
		table_info = netsnmp_extract_table_info(request);
		table_data = netsnmp_tdata_extract_table(request);
		table_row  = netsnmp_tdata_extract_row(request);

		requestvb = request->requestvb;
		subid     = table_info->colnum;

		if( subid == pThisObject->uRowStatus)
		{
			if( RS_CREATEANDGO == *requestvb->val.integer || RS_CREATEANDWAIT == *requestvb->val.integer)
			{
				if( pEntry != NULL && !pEntry->valid)
				{
					for( i = 0; i < pEntry->IndexCount; i ++)
					{
						indexes[i] = pEntry->IndexValue[i].Value.uValue;
					}

					/* remove the entry at the back-end */
					if(!CcspUtilDeleteCosaEntry((ANSC_HANDLE)pThisObject, indexes, pEntry->IndexCount))
					{
						AnscTraceWarning(("Failed to delete DM entry.\n"));
					}
					CcspUtilRemoveMibEntry(table_data,table_row);

				}
			}

		}
	}
#endif

	/* Copy back the saved values */
	for (request = requests; request != NULL; request = request->next) 
	{
		if( request->processed != 0) { continue;}

		pEntry = (PCCSP_TABLE_ENTRY)netsnmp_tdata_extract_entry(request);
		table_info = netsnmp_extract_table_info(request);

		requestvb = request->requestvb;
		subid     = table_info->colnum;

		if( pEntry == NULL) return SNMP_ERR_NOERROR;

		pMibValueObj = CcspUtilLookforMibValueObjWithOid(&pEntry->MibValueQueue, subid);

		if( pMibValueObj != NULL)
		{
			if( pMibValueObj->uType == ASN_OCTET_STR)
			{
				if( pMibValueObj->Value.pBuffer != NULL)  AnscFreeMemory(pMibValueObj->Value.pBuffer);

				pMibValueObj->Value.pBuffer     = pMibValueObj->BackValue.pBuffer;
				pMibValueObj->uSize             = pMibValueObj->uBackSize;

				pMibValueObj->BackValue.pBuffer = NULL;
				pMibValueObj->uBackSize         = 0;
			}
			else if( pMibValueObj->uType == ASN_BIT_STR)
			{
				if( pMibValueObj->Value.puBuffer != NULL)  AnscFreeMemory(pMibValueObj->Value.puBuffer);

				pMibValueObj->Value.puBuffer     = pMibValueObj->BackValue.puBuffer;
				pMibValueObj->uSize              = pMibValueObj->uBackSize;

				pMibValueObj->BackValue.puBuffer = NULL;
				pMibValueObj->uBackSize          = 0;
			}
			else
			{
				pMibValueObj->Value.uValue      = pMibValueObj->BackValue.uValue;
				pMibValueObj->uSize             = pMibValueObj->uBackSize;

				pMibValueObj->BackValue.uValue  = 0;
				pMibValueObj->uBackSize         = pMibValueObj->uSize;
			}
		}
	}

	return SNMP_ERR_NOERROR;
}
Exemplo n.º 8
0
/** handles requests for the schedTable table */
int
schedTable_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 schedTable_entry    *entry;
    int    recalculate = 0;
    size_t len;
    char  *cp;
    char   owner[SCHED_STR1_LEN+1];
    char   name[ SCHED_STR1_LEN+1];
    int    ret;

    DEBUGMSGTL(("disman:schedule:mib", "Schedule handler (%d)\n",
                                        reqinfo->mode));
    switch (reqinfo->mode) {
        /*
         * Read-support (also covers GetNext requests)
         */
    case MODE_GET:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            entry = (struct schedTable_entry *)
                    netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info( request);

            switch (tinfo->colnum) {
            case COLUMN_SCHEDDESCR:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->schedDescr,
                                  strlen(entry->schedDescr));
                break;
            case COLUMN_SCHEDINTERVAL:
                snmp_set_var_typed_integer(request->requestvb, ASN_UNSIGNED,
                                           entry->schedInterval);
                break;
            case COLUMN_SCHEDWEEKDAY:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                        &entry->schedWeekDay,
                                  sizeof(entry->schedWeekDay));
                break;
            case COLUMN_SCHEDMONTH:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->schedMonth,
                                  sizeof(entry->schedMonth));
                break;
            case COLUMN_SCHEDDAY:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->schedDay,
                                  sizeof(entry->schedDay));
                break;
            case COLUMN_SCHEDHOUR:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->schedHour,
                                  sizeof(entry->schedHour));
                break;
            case COLUMN_SCHEDMINUTE:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->schedMinute,
                                  sizeof(entry->schedMinute));
                break;
            case COLUMN_SCHEDCONTEXTNAME:
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         entry->schedContextName,
                                  strlen(entry->schedContextName));
                break;
            case COLUMN_SCHEDVARIABLE:
                snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
                               (u_char *)entry->schedVariable,
                                         entry->schedVariable_len*sizeof(oid));
                break;
            case COLUMN_SCHEDVALUE:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->schedValue);
                break;
            case COLUMN_SCHEDTYPE:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->schedType);
                break;
            case COLUMN_SCHEDADMINSTATUS:
                ret = (entry->flags & SCHEDULE_FLAG_ENABLED ) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_SCHEDOPERSTATUS:
                ret = (entry->flags & SCHEDULE_FLAG_ENABLED ) ?
                           TV_TRUE : TV_FALSE;
                /*
                 * Check for one-shot entries that have already fired
                 */
                if ((entry->schedType == SCHED_TYPE_ONESHOT) &&
                    (entry->schedLastRun != 0 ))
                    ret = 3;  /* finished(3) */
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_SCHEDFAILURES:
                snmp_set_var_typed_integer(request->requestvb, ASN_COUNTER,
                                           entry->schedFailures);
                break;
            case COLUMN_SCHEDLASTFAILURE:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->schedLastFailure);
                break;
            case COLUMN_SCHEDLASTFAILED:
                /*
                 * Convert 'schedLastFailed' timestamp
                 *   into DateAndTime string
                 */
                cp = (char *) date_n_time( &entry->schedLastFailed, &len );
                snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR,
                                         cp, len);
                break;
            case COLUMN_SCHEDSTORAGETYPE:
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
                                           entry->schedStorageType);
                break;
            case COLUMN_SCHEDROWSTATUS:
                ret = (entry->flags & SCHEDULE_FLAG_ACTIVE ) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_SCHEDTRIGGERS:
                snmp_set_var_typed_integer(request->requestvb, ASN_COUNTER,
                                           entry->schedTriggers);
                break;
            }
        }
        break;

        /*
         * Write-support
         */
    case MODE_SET_RESERVE1:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            entry = (struct schedTable_entry *)
                    netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info( request);

            switch (tinfo->colnum) {
            case COLUMN_SCHEDDESCR:
                ret = netsnmp_check_vb_type_and_max_size(
                          request->requestvb, ASN_OCTET_STR, SCHED_STR2_LEN);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDINTERVAL:
                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_SCHEDWEEKDAY:
                ret = netsnmp_check_vb_type_and_size(
                          request->requestvb, ASN_OCTET_STR, 1);
                /* XXX - check for bit(7) set */
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDMONTH:
                ret = netsnmp_check_vb_type_and_size(  /* max_size ?? */
                          request->requestvb, ASN_OCTET_STR, 2);
                /* XXX - check for bit(12)-bit(15) set */
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDDAY:
                ret = netsnmp_check_vb_type_and_size(  /* max_size ?? */
                          request->requestvb, ASN_OCTET_STR, 4+4);
                /* XXX - check for bit(62) or bit(63) set */
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDHOUR:
                ret = netsnmp_check_vb_type_and_size(  /* max_size ?? */
                          request->requestvb, ASN_OCTET_STR, 3);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDMINUTE:
                ret = netsnmp_check_vb_type_and_size(  /* max_size ?? */
                          request->requestvb, ASN_OCTET_STR, 8);
                /* XXX - check for bit(60)-bit(63) set */
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDCONTEXTNAME:
                ret = netsnmp_check_vb_type_and_max_size(
                          request->requestvb, ASN_OCTET_STR, SCHED_STR1_LEN);
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDVARIABLE:
                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_SCHEDVALUE:
                ret = netsnmp_check_vb_int( request->requestvb );
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDTYPE:
                ret = netsnmp_check_vb_int_range( request->requestvb,
                             SCHED_TYPE_PERIODIC, SCHED_TYPE_ONESHOT );
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDADMINSTATUS:
                ret = netsnmp_check_vb_truthvalue( request->requestvb );
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request,
                                              SNMP_ERR_WRONGTYPE);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDSTORAGETYPE:
                ret = netsnmp_check_vb_int_range( request->requestvb,
                                                  ST_NONE, ST_READONLY );
                /* XXX - check valid/consistent assignments */
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_SCHEDROWSTATUS:
                ret = netsnmp_check_vb_rowstatus( request->requestvb,
                          (entry ? RS_ACTIVE: RS_NONEXISTENT));
                /* XXX - check consistency assignments */
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                break;
            default:
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOTWRITABLE);
                return SNMP_ERR_NOERROR;
            }
        }
        break;

    case MODE_SET_RESERVE2:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_SCHEDROWSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Create an (empty) new row structure
                     */
                    memset(owner, 0, SCHED_STR1_LEN+1);
                    memset(name,  0, SCHED_STR1_LEN+1);
                    memcpy(owner, tinfo->indexes->val.string,
                                  tinfo->indexes->val_len);
                    memcpy(name,  tinfo->indexes->next_variable->val.string,
                                  tinfo->indexes->next_variable->val_len);
                    row = schedTable_createEntry(owner, name);
                    if (!row) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_RESOURCEUNAVAILABLE);
                        return SNMP_ERR_NOERROR;
                    }
                    netsnmp_insert_tdata_row(request, row);
                }
            }
        }
        break;

    case MODE_SET_FREE:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_SCHEDROWSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Tidy up after a failed row creation request
                     */ 
                    entry = (struct schedTable_entry *)
                                netsnmp_tdata_extract_entry(request);
                    if (entry &&
                      !(entry->flags & SCHEDULE_FLAG_VALID)) {
                        row = (netsnmp_tdata_row *)
                                netsnmp_tdata_extract_row(request);
                        schedTable_removeEntry(row);
                    }
                }
            }
        }
        break;

    case MODE_SET_ACTION:
        for (request = requests; request; request = request->next) {
            entry = (struct schedTable_entry *)
                    netsnmp_tdata_extract_entry(request);
            if (!entry) {
                /*
                 * New rows must be created via the RowStatus column
                 */
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOCREATION);
                                      /* or inconsistentName? */
                return SNMP_ERR_NOERROR;
            }
        }
        break;

    case MODE_SET_UNDO:
        break;

    case MODE_SET_COMMIT:
        /*
         * All these assignments are "unfailable", so it's
         *  (reasonably) safe to apply them in the Commit phase
         */
        entry = NULL;
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            entry = (struct schedTable_entry *)
                    netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info( request);

            switch (tinfo->colnum) {
            case COLUMN_SCHEDDESCR:
                memset(entry->schedDescr, 0, sizeof(entry->schedDescr));
                memcpy(entry->schedDescr, request->requestvb->val.string,
                                          request->requestvb->val_len);
                break;
            case COLUMN_SCHEDINTERVAL:
                entry->schedInterval = *request->requestvb->val.integer;
                recalculate = 1;
                break;
            case COLUMN_SCHEDWEEKDAY:
                entry->schedWeekDay  = request->requestvb->val.string[0];
                recalculate = 1;
                break;
            case COLUMN_SCHEDMONTH:
                entry->schedMonth[0] = request->requestvb->val.string[0];
                entry->schedMonth[1] = request->requestvb->val.string[1];
                recalculate = 1;
                break;
            case COLUMN_SCHEDDAY:
                memset(entry->schedDay, 0, sizeof(entry->schedDay));
                memcpy(entry->schedDay, request->requestvb->val.string,
                                        request->requestvb->val_len);
                recalculate = 1;
                break;
            case COLUMN_SCHEDHOUR:
                entry->schedHour[0]  = request->requestvb->val.string[0];
                entry->schedHour[1]  = request->requestvb->val.string[1];
                entry->schedHour[2]  = request->requestvb->val.string[2];
                recalculate = 1;
                break;
            case COLUMN_SCHEDMINUTE:
                memset(entry->schedMinute, 0, sizeof(entry->schedMinute));
                memcpy(entry->schedMinute, request->requestvb->val.string,
                                           request->requestvb->val_len);
                recalculate = 1;
                break;
            case COLUMN_SCHEDCONTEXTNAME:
                memset(entry->schedContextName, 0, sizeof(entry->schedContextName));
                memcpy(entry->schedContextName,
                                           request->requestvb->val.string,
                                           request->requestvb->val_len);
                break;
            case COLUMN_SCHEDVARIABLE:
                memset(entry->schedVariable, 0, sizeof(entry->schedVariable));
                memcpy(entry->schedVariable,
                                           request->requestvb->val.string,
                                           request->requestvb->val_len);
                entry->schedVariable_len =
                                  request->requestvb->val_len/sizeof(oid);
                break;
            case COLUMN_SCHEDVALUE:
                entry->schedValue = *request->requestvb->val.integer;
                break;
            case COLUMN_SCHEDTYPE:
                entry->schedType  = *request->requestvb->val.integer;
                break;
            case COLUMN_SCHEDADMINSTATUS:
                if (*request->requestvb->val.integer == TV_TRUE)
                    entry->flags |=  SCHEDULE_FLAG_ENABLED;
                else
                    entry->flags &= ~SCHEDULE_FLAG_ENABLED;
                break;
            case COLUMN_SCHEDSTORAGETYPE:
                entry->schedStorageType = *request->requestvb->val.integer;
                break;
            case COLUMN_SCHEDROWSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_ACTIVE:
                    entry->flags |= SCHEDULE_FLAG_ACTIVE;
                    break;
                case RS_CREATEANDGO:
                    entry->flags |= SCHEDULE_FLAG_ACTIVE;
                    entry->flags |= SCHEDULE_FLAG_VALID;
                    entry->session =
                        netsnmp_iquery_pdu_session(reqinfo->asp->pdu);
                    break;
                case RS_CREATEANDWAIT:
                    entry->flags |= SCHEDULE_FLAG_VALID;
                    entry->session =
                        netsnmp_iquery_pdu_session(reqinfo->asp->pdu);
                    break;

                case RS_DESTROY:
                    row = (netsnmp_tdata_row *)
                               netsnmp_tdata_extract_row(request);
                    schedTable_removeEntry(row);
                }
                recalculate = 1;
                break;
            }
        }
        if (recalculate) {
            netsnmp_assert(entry);
            sched_nextTime(entry);
        }
        break;
    }
    return SNMP_ERR_NOERROR;
}
Exemplo n.º 9
0
/** handles requests for the mteObjectsTable table */
int
mteObjectsTable_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 mteObject           *entry;
    char mteOwner[MTE_STR1_LEN+1];
    char mteOName[MTE_STR1_LEN+1];
    long ret;

    DEBUGMSGTL(("disman:event:mib", "ObjTable 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 mteObject *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            if (!entry) {
                netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHINSTANCE);
                continue;
            }
            switch (tinfo->colnum) {
            case COLUMN_MTEOBJECTSID:
                snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
                              (u_char *) entry->mteObjectID,
                                         entry->mteObjectID_len*sizeof(oid));
                break;
            case COLUMN_MTEOBJECTSIDWILDCARD:
                ret = (entry->flags & MTE_OBJECT_FLAG_WILD ) ?
                           TV_TRUE : TV_FALSE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            case COLUMN_MTEOBJECTSENTRYSTATUS:
                ret = (entry->flags & MTE_OBJECT_FLAG_ACTIVE ) ?
                           RS_ACTIVE : RS_NOTINSERVICE;
                snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
                break;
            }
        }
        break;

#ifndef NETSNMP_NO_WRITE_SUPPORT
        /*
         * Write-support
         */
    case MODE_SET_RESERVE1:

        for (request = requests; request; request = request->next) {
            entry = (struct mteObject *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTEOBJECTSID:
                ret = netsnmp_check_vb_oid( request->requestvb );
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                /*
                 * Can't modify the OID of an active row
                 *  (an unnecessary restriction, IMO)
                 */
                if (entry &&
                    entry->flags & MTE_OBJECT_FLAG_ACTIVE ) {
                    netsnmp_set_request_error(reqinfo, request,
                                              SNMP_ERR_INCONSISTENTVALUE);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTEOBJECTSIDWILDCARD:
                ret = netsnmp_check_vb_truthvalue( request->requestvb );
                if (ret != SNMP_ERR_NOERROR) {
                    netsnmp_set_request_error(reqinfo, request, ret);
                    return SNMP_ERR_NOERROR;
                }
                /*
                 * Can't modify the wildcarding of an active row
                 *  (an unnecessary restriction, IMO)
                 */
                if (entry &&
                    entry->flags & MTE_OBJECT_FLAG_ACTIVE ) {
                    netsnmp_set_request_error(reqinfo, request,
                                              SNMP_ERR_INCONSISTENTVALUE);
                    return SNMP_ERR_NOERROR;
                }
                break;
            case COLUMN_MTEOBJECTSENTRYSTATUS:
                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;
                }
                /* An active row can only be deleted */
                if (entry &&
                    entry->flags & MTE_OBJECT_FLAG_ACTIVE &&
                    *request->requestvb->val.integer == RS_NOTINSERVICE ) {
                    netsnmp_set_request_error(reqinfo, request,
                                              SNMP_ERR_INCONSISTENTVALUE);
                    return SNMP_ERR_NOERROR;
                }
                break;
            default:
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOTWRITABLE);
                return SNMP_ERR_NOERROR;
            }
        }
        break;

    case MODE_SET_RESERVE2:

        for (request = requests; request; request = request->next) {
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTEOBJECTSENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Create an (empty) new row structure
                     */
                    memset(mteOwner, 0, sizeof(mteOwner));
                    memcpy(mteOwner, tinfo->indexes->val.string,
                                     tinfo->indexes->val_len);
                    memset(mteOName, 0, sizeof(mteOName));
                    memcpy(mteOName,
                           tinfo->indexes->next_variable->val.string,
                           tinfo->indexes->next_variable->val_len);
                    ret = *tinfo->indexes->next_variable->next_variable->val.integer;

                    row = mteObjects_createEntry(mteOwner, mteOName, ret, 0);
                    if (!row) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_RESOURCEUNAVAILABLE);
                        return SNMP_ERR_NOERROR;
                    }
                    netsnmp_insert_tdata_row( request, row );
                }
            }
        }
        break;

    case MODE_SET_FREE:

        for (request = requests; request; request = request->next) {
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTEOBJECTSENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Tidy up after a failed row creation request
                     */ 
                    entry = (struct mteObject *)
                                netsnmp_tdata_extract_entry(request);
                    if (entry &&
                      !(entry->flags & MTE_OBJECT_FLAG_VALID)) {
                        row = (netsnmp_tdata_row *)
                                netsnmp_tdata_extract_row(request);
                        mteObjects_removeEntry( row );
                    }
                }
            }
        }
        break;

    case MODE_SET_ACTION:
        for (request = requests; request; request = request->next) {
            entry = (struct mteObject *) netsnmp_tdata_extract_entry(request);
            if (!entry) {
                /*
                 * New rows must be created via the RowStatus column
                 */
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOCREATION);
                                      /* or inconsistentName? */
                return SNMP_ERR_NOERROR;

            }
        }
        break;

    case MODE_SET_UNDO:
        break;

    case MODE_SET_COMMIT:
        /*
         * All these assignments are "unfailable", so it's
         *  (reasonably) safe to apply them in the Commit phase
         */
        for (request = requests; request; request = request->next) {
            entry = (struct mteObject *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTEOBJECTSID:
                memset(entry->mteObjectID, 0, sizeof(entry->mteObjectID));
                memcpy(entry->mteObjectID, request->requestvb->val.objid,
                                           request->requestvb->val_len);
                entry->mteObjectID_len = request->requestvb->val_len/sizeof(oid);
                break;

            case COLUMN_MTEOBJECTSIDWILDCARD:
                if (*request->requestvb->val.integer == TV_TRUE)
                    entry->flags |=  MTE_OBJECT_FLAG_WILD;
                else
                    entry->flags &= ~MTE_OBJECT_FLAG_WILD;
                break;

            case COLUMN_MTEOBJECTSENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_ACTIVE:
                    entry->flags |= MTE_OBJECT_FLAG_ACTIVE;
                    break;
                case RS_CREATEANDGO:
                    entry->flags |= MTE_OBJECT_FLAG_VALID;
                    entry->flags |= MTE_OBJECT_FLAG_ACTIVE;
                    break;
                case RS_CREATEANDWAIT:
                    entry->flags |= MTE_OBJECT_FLAG_VALID;
                    break;

                case RS_DESTROY:
                    row = (netsnmp_tdata_row *)
                               netsnmp_tdata_extract_row(request);
                    mteObjects_removeEntry(row);
                }
            }
        }

        /** set up to save persistent store */
        snmp_store_needed(NULL);

        break;
#endif /* !NETSNMP_NO_WRITE_SUPPORT */ 
    }
    return SNMP_ERR_NOERROR;
}
Exemplo n.º 10
0
/** 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) {
            if (request->processed)
                continue;

            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;

#ifndef NETSNMP_NO_WRITE_SUPPORT
        /*
         * Write-support
         */
    case MODE_SET_RESERVE1:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            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;
                }
                break;
            default:
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOTWRITABLE);
                return SNMP_ERR_NOERROR;
            }


            /*
             * Once a row has been made active, it cannot be
             *   modified except to delete it.  There's no good
             *   reason for this, but that's what the MIB says.
             *
             * The published version of the Event MIB even forbids
             *   enabling (or disabling) an active row, which
             *   would make this object completely pointless!
             * Fortunately this ludicrous decision has since been corrected.
             */
            if (entry &&
                entry->flags & MTE_TRIGGER_FLAG_ACTIVE ) {
                /* check for the acceptable assignments */
                if ((tinfo->colnum == COLUMN_MTETRIGGERENABLED) ||
                    (tinfo->colnum == COLUMN_MTETRIGGERENTRYSTATUS &&
                         *request->requestvb->val.integer != RS_NOTINSERVICE))
                    continue;

                /* Otherwise, reject this request */
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_INCONSISTENTVALUE);
                return SNMP_ERR_NOERROR;
            }
        }
        break;

    case MODE_SET_RESERVE2:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTETRIGGERENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Create an (empty) new row structure
                     */
                    memset(mteOwner, 0, sizeof(mteOwner));
                    memcpy(mteOwner, tinfo->indexes->val.string,
                                     tinfo->indexes->val_len);
                    memset(mteTName, 0, sizeof(mteTName));
                    memcpy(mteTName,
                           tinfo->indexes->next_variable->val.string,
                           tinfo->indexes->next_variable->val_len);

                    row = mteTrigger_createEntry(mteOwner, mteTName, 0);
                    if (!row) {
                        netsnmp_set_request_error(reqinfo, request,
                                                  SNMP_ERR_RESOURCEUNAVAILABLE);
                        return SNMP_ERR_NOERROR;
                    }
                    netsnmp_insert_tdata_row( request, row );
                }
            }
        }
        break;

    case MODE_SET_FREE:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTETRIGGERENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_CREATEANDGO:
                case RS_CREATEANDWAIT:
                    /*
                     * Tidy up after a failed row creation request
                     */ 
                    entry = (struct mteTrigger *)
                                netsnmp_tdata_extract_entry(request);
                    if (entry &&
                      !(entry->flags & MTE_TRIGGER_FLAG_VALID)) {
                        row = (netsnmp_tdata_row *)
                                netsnmp_tdata_extract_row(request);
                        mteTrigger_removeEntry( row );
                    }
                }
            }
        }
        break;

    case MODE_SET_ACTION:
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            tinfo = netsnmp_extract_table_info(request);
            entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request);
            if (!entry) {
                /*
                 * New rows must be created via the RowStatus column
                 */
                netsnmp_set_request_error(reqinfo, request,
                                          SNMP_ERR_NOCREATION);
                                      /* or inconsistentName? */
                return SNMP_ERR_NOERROR;

            }
        }
        break;

    case MODE_SET_UNDO:
        break;

    case MODE_SET_COMMIT:
        /*
         * All these assignments are "unfailable", so it's
         *  (reasonably) safe to apply them in the Commit phase
         */
        for (request = requests; request; request = request->next) {
            if (request->processed)
                continue;

            entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request);
            tinfo = netsnmp_extract_table_info(request);

            switch (tinfo->colnum) {
            case COLUMN_MTETRIGGERCOMMENT:
                memset(entry->mteTriggerComment, 0,
                       sizeof(entry->mteTriggerComment));
                memcpy(entry->mteTriggerComment,
                       request->requestvb->val.string,
                       request->requestvb->val_len);
                break;
            case COLUMN_MTETRIGGERTEST:
                entry->mteTriggerTest = request->requestvb->val.string[0];
                break;
            case COLUMN_MTETRIGGERSAMPLETYPE:
                if (*request->requestvb->val.integer == MTE_SAMPLE_DELTA)
                    entry->flags |=  MTE_TRIGGER_FLAG_DELTA;
                else
                    entry->flags &= ~MTE_TRIGGER_FLAG_DELTA;
                break;
            case COLUMN_MTETRIGGERVALUEID:
                memset(entry->mteTriggerValueID, 0,
                       sizeof(entry->mteTriggerValueID));
                memcpy(entry->mteTriggerValueID,
                       request->requestvb->val.string,
                       request->requestvb->val_len);
                entry->mteTriggerValueID_len = request->requestvb->val_len/sizeof(oid);
                break;
            case COLUMN_MTETRIGGERVALUEIDWILDCARD:
                if (*request->requestvb->val.integer == TV_TRUE)
                    entry->flags |=  MTE_TRIGGER_FLAG_VWILD;
                else
                    entry->flags &= ~MTE_TRIGGER_FLAG_VWILD;
                break;
            case COLUMN_MTETRIGGERTARGETTAG:
                memset(entry->mteTriggerTarget, 0,
                       sizeof(entry->mteTriggerTarget));
                memcpy(entry->mteTriggerTarget,
                       request->requestvb->val.string,
                       request->requestvb->val_len);
                break;
            case COLUMN_MTETRIGGERCONTEXTNAME:
                memset(entry->mteTriggerContext, 0,
                       sizeof(entry->mteTriggerContext));
                memcpy(entry->mteTriggerContext,
                       request->requestvb->val.string,
                       request->requestvb->val_len);
                break;
            case COLUMN_MTETRIGGERCONTEXTNAMEWILDCARD:
                if (*request->requestvb->val.integer == TV_TRUE)
                    entry->flags |=  MTE_TRIGGER_FLAG_CWILD;
                else
                    entry->flags &= ~MTE_TRIGGER_FLAG_CWILD;
                break;
            case COLUMN_MTETRIGGERFREQUENCY:
                entry->mteTriggerFrequency = *request->requestvb->val.integer;
                break;
            case COLUMN_MTETRIGGEROBJECTSOWNER:
                memset(entry->mteTriggerOOwner, 0,
                       sizeof(entry->mteTriggerOOwner));
                memcpy(entry->mteTriggerOOwner,
                       request->requestvb->val.string,
                       request->requestvb->val_len);
                break;
            case COLUMN_MTETRIGGEROBJECTS:
                memset(entry->mteTriggerObjects, 0,
                       sizeof(entry->mteTriggerObjects));
                memcpy(entry->mteTriggerObjects,
                       request->requestvb->val.string,
                       request->requestvb->val_len);
                break;
            case COLUMN_MTETRIGGERENABLED:
                if (*request->requestvb->val.integer == TV_TRUE)
                    entry->flags |=  MTE_TRIGGER_FLAG_ENABLED;
                else
                    entry->flags &= ~MTE_TRIGGER_FLAG_ENABLED;
                break;
            case COLUMN_MTETRIGGERENTRYSTATUS:
                switch (*request->requestvb->val.integer) {
                case RS_ACTIVE:
                    entry->flags |= MTE_TRIGGER_FLAG_ACTIVE;
                    mteTrigger_enable( entry );
                    break;
                case RS_CREATEANDGO:
                    entry->flags |= MTE_TRIGGER_FLAG_ACTIVE;
                    entry->flags |= MTE_TRIGGER_FLAG_VALID;
                    entry->session =
                        netsnmp_iquery_pdu_session(reqinfo->asp->pdu);
                    mteTrigger_enable( entry );
                    break;
                case RS_CREATEANDWAIT:
                    entry->flags |= MTE_TRIGGER_FLAG_VALID;
                    entry->session =
                        netsnmp_iquery_pdu_session(reqinfo->asp->pdu);
                    break;

                case RS_DESTROY:
                    row = (netsnmp_tdata_row *)
                               netsnmp_tdata_extract_row(request);
                    mteTrigger_removeEntry(row);
                }
                break;
            }
        }

        /** set up to save persistent store */
        snmp_store_needed(NULL);

        break;

#endif /* !NETSNMP_NO_WRITE_SUPPORT */

    }
    return SNMP_ERR_NOERROR;
}