private String extractor(IpTablesRule arg)
{
String addr = arg.GetModule <CoreModule>("core").InInterface.Value;
arg.GetModule <CoreModule>("core").InInterface = new ValueOrNot <String>();
return(addr);
}
private IPAddress extractor(IpTablesRule arg)
{
IPAddress addr = arg.GetModule <CoreModule>("core").Source.Value.Address;
arg.GetModule <CoreModule>("core").Source = new ValueOrNot <IpCidr>();
return(addr);
}
public static bool Comparer(IpTablesRule rule1, IpTablesRule rule2)
{
var comment1 = rule1.GetModule<CommentModule>("comment");
var comment2 = rule2.GetModule<CommentModule>("comment");
if (comment1 == null || comment2 == null)
return false;
return comment1.CommentText == comment2.CommentText;
}
/// <summary>
/// Comparison that detirmines equality based on comment text
/// </summary>
/// <param name="rule1"></param>
/// <param name="rule2"></param>
/// <returns></returns>
static bool CommentComparer(IpTablesRule rule1, IpTablesRule rule2)
{
var comment1 = rule1.GetModule <CommentModule>("comment");
var comment2 = rule2.GetModule <CommentModule>("comment");
if (comment1 == null || comment2 == null)
{
return(false);
}
return(comment1.CommentText == comment2.CommentText);
}
/// <summary>
/// Extract the first port (or range) from a IPTables rule.
///
/// Supports both TCP & UDP protocol modules and Multiport
/// </summary>
/// <param name="rule"></param>
/// <param name="source"></param>
/// <returns></returns>
public static PortOrRange ExtractPort(IpTablesRule rule, bool source)
{
var core = rule.GetModule <CoreModule>("core");
if (core == null || core.Protocol.Null || core.Protocol.Not)
{
return(new PortOrRange(0));
}
var protocol = core.Protocol.Value.ToLower();
if (protocol == "tcp")
{
var pmod = rule.GetModule <TcpModule>("tcp");
if (pmod == null)
{
return(new PortOrRange(0));
}
if (source)
{
return(pmod.SourcePort.Value);
}
return(pmod.DestinationPort.Value);
}
if (protocol == "udp")
{
var pmod = rule.GetModule <UdpModule>("udp");
if (pmod == null)
{
return(new PortOrRange(0));
}
if (source)
{
return(pmod.SourcePort.Value);
}
return(pmod.DestinationPort.Value);
}
return(new PortOrRange(0));
}
public static void SourcePortSetter(IpTablesRule rule, List <PortOrRange> ranges)
{
var protocol = rule.GetModule <CoreModule>("core").Protocol;
if (ranges.Count == 1 && !protocol.Null && !protocol.Not)
{
if (protocol.Value == "tcp")
{
var tcp = rule.GetModuleOrLoad <TcpModule>("tcp");
tcp.SourcePort = new ValueOrNot <PortOrRange>(ranges[0]);
}
else
{
var tcp = rule.GetModuleOrLoad <UdpModule>("udp");
tcp.SourcePort = new ValueOrNot <PortOrRange>(ranges[0]);
}
}
else
{
var multiport = rule.GetModuleOrLoad <MultiportModule>("multiport");
multiport.SourcePorts = new ValueOrNot <IEnumerable <PortOrRange> >(ranges);
}
}
public static void SourcePortSetter(IpTablesRule rule, List<PortOrRange> ranges)
{
var protocol = rule.GetModule<CoreModule>("core").Protocol;
if (ranges.Count == 1 && !protocol.Null && !protocol.Not)
{
if (protocol.Value == "tcp")
{
var tcp = rule.GetModuleOrLoad<TcpModule>("tcp");
tcp.SourcePort = new ValueOrNot<PortOrRange>(ranges[0]);
}
else
{
var tcp = rule.GetModuleOrLoad<UdpModule>("udp");
tcp.SourcePort = new ValueOrNot<PortOrRange>(ranges[0]);
}
}
else
{
var multiport = rule.GetModuleOrLoad<MultiportModule>("multiport");
multiport.SourcePorts = new ValueOrNot<IEnumerable<PortOrRange>>(ranges);
}
}
private IPAddress extractSrcIp(IpTablesRule arg)
{
return(arg.GetModule <CoreModule>("core").Source.Value.Address);
}
private PortOrRange extractSrcPort(IpTablesRule arg)
{
return(arg.GetModule <UdpModule>("udp").SourcePort.Value);
}
private IPAddress extractor(IpTablesRule arg)
{
IPAddress addr = arg.GetModule<CoreModule>("core").Source.Value.Address;
arg.GetModule<CoreModule>("core").Source = new ValueOrNot<IpCidr>();
return addr;
}
private IPAddress extractSrcIp(IpTablesRule arg)
{
return arg.GetModule<CoreModule>("core").Source.Value.Address;
}
private PortOrRange extractSrcPort(IpTablesRule arg)
{
return arg.GetModule<UdpModule>("udp").SourcePort.Value;
}
private String extractor(IpTablesRule arg)
{
String addr = arg.GetModule<CoreModule>("core").InInterface.Value;
arg.GetModule<CoreModule>("core").InInterface = new ValueOrNot<String>();
return addr;
}