public CommandParser(string[] arguments, IpTablesCommand ipCommand, IpTablesChainSet chains)
{
_arguments = arguments;
_ipCommand = ipCommand;
_parsers = ModuleRegistry.PreloadDuplicateModules.ToList();
_chains = chains;
}
internal void TestApply(IpTablesRuleSet rulesOrig, IpTablesRuleSet rulesSynced, IpTablesRuleSet rulesNew, List <string> commands)
{
try
{
Assert.AreEqual(rulesNew, rulesSynced);
}
catch (Exception ex)
{
Console.WriteLine("Sync:");
DumpRuleset(rulesSynced);
Console.WriteLine("New:");
DumpRuleset(rulesNew);
throw;
}
String currentTable = "filter";
foreach (var cmd in commands)
{
if (cmd.StartsWith("*"))
{
currentTable = cmd.Substring(1);
continue;
}
if (!cmd.StartsWith("-"))
{
continue;
}
var ipCmd = IpTablesCommand.Parse(cmd, rulesOrig.System, rulesOrig.Chains, rulesOrig.IpVersion, currentTable);
if (ipCmd.Rule != null)
{
ipCmd.Rule.Chain = rulesOrig.Chains.GetChain(ipCmd.ChainName, ipCmd.Table);
}
rulesOrig.ApplyCommand(ipCmd);
}
try
{
Assert.AreEqual(rulesNew, rulesOrig);
}
catch (Exception ex)
{
Console.WriteLine("Orig:");
DumpRuleset(rulesOrig);
Console.WriteLine("New:");
DumpRuleset(rulesNew);
throw;
}
}
/// <summary>
/// Consume arguments
/// </summary>
/// <param name="position">Rhe position to parse</param>
/// <param name="not"></param>
/// <param name="version"></param>
/// <returns>number of arguments consumed</returns>
public int FeedToSkip(int position, bool not, int version)
{
Position = position;
String option = GetCurrentArg();
if (option == "-m")
{
LoadParserModule(GetNextArg(), version);
return(1);
}
if (option == "-A" || option == "-D" || option == "-R" || option == "-I")
{
_ipCommand.ChainName = GetNextArg();
_ipCommand.Type = IpTablesCommand.GetCommandType(option);
if (option == "-D" || option == "-R" || option == "-I")
{
var nextArg = GetNextArg(2);
uint offset;
if (uint.TryParse(nextArg, out offset))
{
if (offset == 0)
{
throw new Exception("Invalid offset");
}
_ipCommand.Offset = ((int)offset - 1);
return(2);
}
else
{
_ipCommand.Offset = -1;
}
}
return(1);
}
if (option == "-t")
{
_ipCommand.Table = GetNextArg();
return(1);
}
if (option == "-j")
{
LoadParserModule(GetNextArg(), version, true);
}
//All the preloaded modules are indexed here
ModuleEntry mQuick;
if (ModuleRegistry.PreloadOptions.TryGetValue(option, out mQuick))
{
IIpTablesModule module = _ipCommand.Rule.GetModuleForParseInternal(mQuick.Name, mQuick.Activator, version);
return(module.Feed(this, not));
}
//Search each module, do it verbosely from the most recently added
for (int index = _parsers.Count - 1; index >= 0; index--)
{
ModuleEntry m = _parsers[index];
if (m.Options.Contains(option))
{
IIpTablesModule module = _ipCommand.Rule.GetModuleForParseInternal(m.Name, m.Activator, version);
return(module.Feed(this, not));
}
}
if (_polyfill != null)
{
IIpTablesModule module = _ipCommand.Rule.GetModuleForParseInternal(_polyfill.Value.Name, _polyfill.Value.Activator, version);
return(module.Feed(this, not));
}
throw new IpTablesNetException("Unknown option: \"" + option + "\"");
}