1 /* 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 25 * OF SUCH DAMAGE. 26 * 27 * This file is part of the lwIP TCP/IP stack. 28 * 29 * Author: Martin Hentschel <info@cl-soft.de> 30 * 31 */ 32 33 using System; 34 using System.Text; 35 using CCodeGeneration; 36 37 namespace LwipSnmpCodeGeneration 38 { 39 public class SnmpScalarNodeOctetString : SnmpScalarNode 40 { SnmpScalarNodeOctetString(SnmpDataType dataType, SnmpTreeNode parentNode)41 public SnmpScalarNodeOctetString(SnmpDataType dataType, SnmpTreeNode parentNode) 42 : base(parentNode) 43 { 44 System.Diagnostics.Debug.Assert( 45 (dataType == SnmpDataType.OctetString) || 46 (dataType == SnmpDataType.Opaque) || 47 (dataType == SnmpDataType.IpAddress)); 48 49 this.DataType = dataType; 50 } 51 GenerateGetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string retLenVarName)52 protected override void GenerateGetMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string retLenVarName) 53 { 54 if (this.Restrictions.Count > 0) 55 { 56 StringBuilder ifCond = new StringBuilder(); 57 foreach (IRestriction restriction in this.Restrictions) 58 { 59 ifCond.Append(restriction.GetCheckCodeValid(retLenVarName)); 60 ifCond.Append(" || "); 61 } 62 63 ifCond.Length -= 4; 64 container.AddElement(new Comment("TODO: take care of len restrictions defined in MIB: " + ifCond, singleLine: true)); 65 } 66 base.GenerateGetMethodCodeCore(container, localValueVarName, ref localValueVarUsed, retLenVarName); 67 } 68 GenerateTestMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName)69 protected override void GenerateTestMethodCodeCore(CodeContainerBase container, string localValueVarName, ref bool localValueVarUsed, string lenVarName, ref bool lenVarUsed, string retErrVarName) 70 { 71 System.Diagnostics.Trace.Assert(this.Restrictions.Count > 0); 72 73 // checks refer to length of octet string 74 StringBuilder ifCond = new StringBuilder(); 75 foreach (IRestriction restriction in this.Restrictions) 76 { 77 ifCond.Append(restriction.GetCheckCodeValid(lenVarName)); 78 ifCond.Append(" || "); 79 80 lenVarUsed = true; 81 } 82 83 ifCond.Length -= 4; 84 85 IfThenElse ite = new IfThenElse(ifCond.ToString()); 86 ite.AddCode(String.Format("{0} = {1};", retErrVarName, LwipDefs.Def_ErrorCode_Ok)); 87 container.AddElement(ite); 88 } 89 90 public override int OidRepresentationLen 91 { 92 get 93 { 94 // check restrictions if we are set to one fixed length 95 if ((this.Restrictions != null) && (this.Restrictions.Count > 0)) 96 { 97 foreach (IRestriction restriction in this.Restrictions) 98 { 99 if (restriction is IsInRangeRestriction) 100 { 101 if ((restriction as IsInRangeRestriction).RangeStart == (restriction as IsInRangeRestriction).RangeEnd) 102 { 103 return (int)(restriction as IsInRangeRestriction).RangeStart; 104 } 105 } 106 else if (restriction is IsEqualRestriction) 107 { 108 return (int)(restriction as IsEqualRestriction).Value; 109 } 110 } 111 } 112 113 return -1; // variable length 114 } 115 } 116 117 } 118 } 119