private static void ProcessMibTreeNode(MibTreeNode mibTreeNode, SnmpTreeNode assignedSnmpNode)
{
foreach (MibTreeNode mtn in mibTreeNode.ChildNodes)
{
// in theory container nodes may also be scalars or tables at the same time (for now only process real containers)
if (mtn.NodeType == MibTreeNodeType.Container)
{
SnmpTreeNode snmpTreeNode = GenerateSnmpTreeNode(mtn, assignedSnmpNode);
assignedSnmpNode.ChildNodes.Add(snmpTreeNode);
ProcessMibTreeNode(mtn, snmpTreeNode);
}
else if ((mtn.NodeType & MibTreeNodeType.Scalar) != 0)
{
SnmpScalarNode snmpScalarNode = GenerateSnmpScalarNode(mtn, assignedSnmpNode);
if (snmpScalarNode != null)
{
assignedSnmpNode.ChildNodes.Add(snmpScalarNode);
}
}
else if ((mtn.NodeType & MibTreeNodeType.Table) != 0)
{
SnmpTableNode snmpTableNode = GenerateSnmpTableNode(mtn, assignedSnmpNode);
if (snmpTableNode != null)
{
assignedSnmpNode.ChildNodes.Add(snmpTableNode);
}
}
}
}
private static SnmpTreeNode GenerateSnmpTreeNode(MibTreeNode mibTreeNode, SnmpTreeNode parentNode)
{
SnmpTreeNode result = new SnmpTreeNode(parentNode);
result.Name = _alphaNumericRegex.Replace(mibTreeNode.Entity.Name, "");
result.Oid = mibTreeNode.Entity.Value;
result.FullOid = MibTypesResolver.ResolveOid(mibTreeNode.Entity).GetOidString();
return(result);
}
private static SnmpTableNode GenerateSnmpTableNode(MibTreeNode mibTreeNode, SnmpTreeNode parentNode)
{
SnmpTableNode result = new SnmpTableNode(parentNode);
result.Name = mibTreeNode.Entity.Name;
result.Oid = mibTreeNode.Entity.Value;
// expect exactly one row entry
if ((mibTreeNode.ChildNodes.Count != 1) || ((mibTreeNode.ChildNodes[0].NodeType & MibTreeNodeType.TableRow) == 0) || (mibTreeNode.ChildNodes[0].Entity.Value != 1))
{
Console.WriteLine("Found table with unsupported properties! Table needs exactly one (fixed) TableRow with OID=1 ! (" + mibTreeNode.Entity.Name + ")");
return(null);
}
MibTreeNode rowNode = mibTreeNode.ChildNodes[0];
ObjectType rot = rowNode.Entity as ObjectType;
if (rot != null)
{
if (!String.IsNullOrWhiteSpace(rot.Augments))
{
result.AugmentedTableRow = rot.Augments;
// the indices from another table shall be used because this table is only an extension of it
rot = MibTypesResolver.ResolveDeclaration(rot.Module, rot.Augments) as ObjectType;
}
if (rot.Indices != null)
{
foreach (string index in rot.Indices)
{
ObjectType indexEntity = MibTypesResolver.ResolveDeclaration(rot.Module, index) as ObjectType;
if (indexEntity == null)
{
Console.WriteLine(String.Format("Could not resolve index '{0}' for table '{1}'! Table omitted!", index, result.Name));
return(null);
}
result.IndexNodes.Add(GenerateSnmpScalarNode(indexEntity, parentNode, ignoreAccessibleFlag: true));
}
}
}
if (result.IndexNodes.Count == 0)
{
// a table cannot be used without index
Console.WriteLine("Found table without any index column ! (" + mibTreeNode.Entity.Name + ")");
return(null);
}
// add child nodes
foreach (MibTreeNode cellNode in rowNode.ChildNodes)
{
SnmpScalarNode ssn = GenerateSnmpScalarNode(cellNode, parentNode);
if (ssn != null)
{
result.CellNodes.Add(ssn);
}
}
return(result);
}
private static SnmpScalarNode GenerateSnmpScalarNode(ObjectType ote, SnmpTreeNode parentNode, bool ignoreAccessibleFlag = false)
{
SnmpScalarNode result;
ITypeAssignment mibType = ote.BaseType;
IntegerType it = (mibType as IntegerType);
if (it != null)
{
if (ote.ReferredType.Name == Symbol.TruthValue.ToString())
{
result = new SnmpScalarNodeTruthValue(parentNode);
}
else if ((it.Type == IntegerType.Types.Integer) || (it.Type == IntegerType.Types.Integer32))
{
result = new SnmpScalarNodeInt(parentNode);
}
else
{
Console.WriteLine(String.Format("Unsupported IntegerType '{0}'!", it.Type));
return(null);
}
if (it.IsEnumeration)
{
result.Restrictions.AddRange(CreateRestrictions(it.Enumeration));
}
else
{
result.Restrictions.AddRange(CreateRestrictions(it.Ranges));
}
}
else
{
UnsignedType ut = (mibType as UnsignedType);
if (ut != null)
{
if ((ut.Type == UnsignedType.Types.Unsigned32) ||
(ut.Type == UnsignedType.Types.Gauge32))
{
result = new SnmpScalarNodeUint(SnmpDataType.Gauge, parentNode);
}
else if (ut.Type == UnsignedType.Types.Counter32)
{
result = new SnmpScalarNodeUint(SnmpDataType.Counter, parentNode);
}
else if (ut.Type == UnsignedType.Types.TimeTicks)
{
result = new SnmpScalarNodeUint(SnmpDataType.TimeTicks, parentNode);
}
else if (ut.Type == UnsignedType.Types.Counter64)
{
result = new SnmpScalarNodeCounter64(parentNode);
if ((ut.Ranges != null) && (ut.Ranges.Count > 0))
{
Console.WriteLine(String.Format("Generation of ranges is not supported for Counter64 type!"));
return(null);
}
}
else
{
Console.WriteLine(String.Format("Unsupported UnsignedType '{0}'!", ut.Type));
return(null);
}
result.Restrictions.AddRange(CreateRestrictions(ut.Ranges));
}
else if (mibType is IpAddressType)
{
result = new SnmpScalarNodeOctetString(SnmpDataType.IpAddress, parentNode);
result.Restrictions.AddRange(CreateRestrictions((mibType as OctetStringType).Size));
}
else if (mibType is OpaqueType)
{
result = new SnmpScalarNodeOctetString(SnmpDataType.Opaque, parentNode);
result.Restrictions.AddRange(CreateRestrictions((mibType as OctetStringType).Size));
}
else if (mibType is OctetStringType)
{
result = new SnmpScalarNodeOctetString(SnmpDataType.OctetString, parentNode);
result.Restrictions.AddRange(CreateRestrictions((mibType as OctetStringType).Size));
}
else if (mibType is ObjectIdentifierType)
{
result = new SnmpScalarNodeObjectIdentifier(parentNode);
}
else if (mibType is BitsType)
{
result = new SnmpScalarNodeBits(parentNode, (uint)((mibType as BitsType).Map.GetHighestValue() + 1));
result.Restrictions.AddRange(CreateRestrictions(mibType as BitsType));
}
else
{
TypeAssignment ta = mibType as TypeAssignment;
if (ta != null)
{
Console.WriteLine(String.Format("Unsupported BaseType: Module='{0}', Name='{1}', Type='{2}'!", ta.Module.Name, ta.Name, ta.Type));
}
else
{
Console.WriteLine(String.Format("Unsupported BaseType: Module='{0}', Name='{1}'!", mibType.Module, mibType.Name));
}
return(null);
}
}
result.Name = _alphaNumericRegex.Replace(ote.Name, "");
result.Oid = ote.Value;
if (ote.Access == MaxAccess.readWrite)
{
result.AccessMode = SnmpAccessMode.ReadWrite;
}
else if (ote.Access == MaxAccess.readOnly)
{
result.AccessMode = SnmpAccessMode.ReadOnly;
}
else if (ote.Access == MaxAccess.readCreate)
{
result.AccessMode = SnmpAccessMode.ReadOnly;
}
else if (ignoreAccessibleFlag && (ote.Access == MaxAccess.notAccessible))
{
result.AccessMode = SnmpAccessMode.NotAccessible;
}
else
{
// not accessible or unsupported access type
return(null);
}
return(result);
}
private static SnmpScalarNode GenerateSnmpScalarNode(MibTreeNode mibTreeNode, SnmpTreeNode parentNode, bool ignoreAccessibleFlag = false)
{
ObjectType ote = mibTreeNode.Entity as ObjectType;
if (ote != null)
{
return(GenerateSnmpScalarNode(ote, parentNode, ignoreAccessibleFlag));
}
return(null);
}