// GET BULK message handler class.// Copyright (C) 2009-2010 Lex Li// // Permission is hereby granted, free of charge, to any person obtaining a copy of this// software and associated documentation files (the "Software"), to deal in the Software// without restriction, including without limitation the rights to use, copy, modify, merge,// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons// to whom the Software is furnished to do so, subject to the following conditions://// The above copyright notice and this permission notice shall be included in all copies or// substantial portions of the Software.//// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER// DEALINGS IN THE SOFTWARE.using System;using System.Collections.Generic;using GSF.Net.Snmp.Messaging;namespace GSF.Net.Snmp.Pipeline{ /// <summary> /// GET BULK message handler. /// </summary> public sealed class GetBulkMessageHandler : IMessageHandler { /// <summary> /// Handles the specified message. /// </summary> /// <param name="context">The context.</param> /// <param name="store">The object store.</param> /// <returns></returns> [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")] [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")] public void Handle(ISnmpContext context, ObjectStore store) { if (context == null) { throw new ArgumentNullException(nameof(context)); } if (store == null) { throw new ArgumentNullException(nameof(store)); } ISnmpPdu pdu = context.Request.Pdu(); IList<Variable> result = new List<Variable>(); int index = 0; int nonrepeaters = pdu.ErrorStatus.ToInt32(); IList<Variable> variables = pdu.Variables; for (int i = 0; i < nonrepeaters; i++) { Variable v = variables[i]; index++; try { ScalarObject next = store.GetNextObject(v.Id); result.Add(next == null ? new Variable(v.Id, new EndOfMibView()) : next.Variable); } catch (Exception) { context.CopyRequest(ErrorCode.GenError, index); return; } } for (int j = nonrepeaters; j < variables.Count; j++) { Variable v = variables[j]; index++; Variable temp = v; int repetition = pdu.ErrorIndex.ToInt32(); while (repetition-- > 0) { try { ScalarObject next = store.GetNextObject(temp.Id); if (next == null) { temp = new Variable(temp.Id, new EndOfMibView()); result.Add(temp); break; } // TODO: how to handle write only object here? result.Add(next.Variable); temp = next.Variable; } catch (Exception) { context.CopyRequest(ErrorCode.GenError, index); return; } } } context.GenerateResponse(result); } }}
// GET BULK message handler class.
// Copyright (C) 2009-2010 Lex Li
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using GSF.Net.Snmp.Messaging;
namespace GSF.Net.Snmp.Pipeline
{
/// <summary>
/// GET BULK message handler.
/// </summary>
public sealed class GetBulkMessageHandler : IMessageHandler
{
/// <summary>
/// Handles the specified message.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="store">The object store.</param>
/// <returns></returns>
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes")]
public void Handle(ISnmpContext context, ObjectStore store)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (store == null)
{
throw new ArgumentNullException(nameof(store));
}
ISnmpPdu pdu = context.Request.Pdu();
IList<Variable> result = new List<Variable>();
int index = 0;
int nonrepeaters = pdu.ErrorStatus.ToInt32();
IList<Variable> variables = pdu.Variables;
for (int i = 0; i < nonrepeaters; i++)
{
Variable v = variables[i];
index++;
try
{
ScalarObject next = store.GetNextObject(v.Id);
result.Add(next == null ? new Variable(v.Id, new EndOfMibView()) : next.Variable);
}
catch (Exception)
{
context.CopyRequest(ErrorCode.GenError, index);
return;
}
}
for (int j = nonrepeaters; j < variables.Count; j++)
{
Variable v = variables[j];
index++;
Variable temp = v;
int repetition = pdu.ErrorIndex.ToInt32();
while (repetition-- > 0)
{
try
{
ScalarObject next = store.GetNextObject(temp.Id);
if (next == null)
{
temp = new Variable(temp.Id, new EndOfMibView());
result.Add(temp);
break;
}
// TODO: how to handle write only object here?
result.Add(next.Variable);
temp = next.Variable;
}
catch (Exception)
{
context.CopyRequest(ErrorCode.GenError, index);
return;
}
}
}
context.GenerateResponse(result);
}
}
}