schedtable.c

开发snmp的开发包有两个开放的SNMP开发库

                    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) {
            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) {
            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
         */
        for (request = requests; request; request = request->next) {
            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, SCHED_STR1_LEN+1);
                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)
            sched_nextTime(entry);
        break;
    }
    return SNMP_ERR_NOERROR;
}