public override IpTablesChainSet ListRules(String table)
{
IpTablesChainSet chains = new IpTablesChainSet(_ipVersion);
var ipc = GetInterface(table);
foreach (String chain in ipc.GetChains())
{
chains.AddChain(chain, table, _system);
}
foreach (var chain in chains)
{
foreach (var ipc_rule in ipc.GetRules(chain.Name))
{
String rule = ipc.GetRuleString(chain.Name, ipc_rule);
if (rule == null)
{
throw new IpTablesNetException("Unable to get string version of rule");
}
chains.AddRule(IpTablesRule.Parse(rule, _system, chains, table));
}
}
return(chains);
}
public static IpTablesChainSet GetRulesFromOutput(NetfilterSystem system, String output, String table, int ipVersion, bool ignoreErrors = false)
{
var ret = new IpTablesChainSet(ipVersion);
String ttable = null;
foreach (string lineRaw in output.Split(new[] { '\n' }))
{
string line = lineRaw.Trim();
if (String.IsNullOrEmpty(line))
{
continue;
}
char c = line[0];
IpTablesRule rule;
IpTablesChain chain;
switch (c)
{
case '*':
ttable = line.Substring(1);
break;
case ':':
string[] split = line.Split(new[] { ' ' });
ret.AddChain(new IpTablesChain(ttable, split[0].Substring(1), ipVersion, system));
break;
//Byte & packet count
case '[':
int positionEnd = line.IndexOf(']');
if (positionEnd == -1)
{
throw new IpTablesNetException("Parsing error, could not find end of counters");
}
string[] counters = line.Substring(1, positionEnd - 1).Split(new[] { ':' });
line = line.Substring(positionEnd + 1);
try
{
rule = IpTablesRule.Parse(line, system, ret, ttable);
}
catch
{
if (ignoreErrors)
{
continue;
}
throw;
}
rule.Counters = new PacketCounters(long.Parse(counters[0]), long.Parse(counters[1]));
ret.AddRule(rule);
break;
case '-':
rule = IpTablesRule.Parse(line, system, ret, ttable);
ret.AddRule(rule);
break;
case '#':
break;
case 'C':
if (line == "COMMIT" && ttable == table)
{
if (ttable == null)
{
throw new IpTablesNetException("Parsing error");
}
return(ret);
}
throw new IpTablesNetException("Unexepected table \"" + table + "\" found \"" + ttable + "\" instead");
}
}
return(null);
}
public override IpTablesChainSet ListRules(String table)
{
IpTablesChainSet chains = new IpTablesChainSet(_ipVersion);
var ipc = GetInterface(table);
foreach (String chain in ipc.GetChains())
{
var newChain = chains.AddChain(chain, table, _system);
Debug.Assert(newChain.IpVersion == _ipVersion);
}
Debug.Assert(_ipVersion == chains.IpVersion);
foreach (var chain in chains)
{
foreach (var ipc_rule in ipc.GetRules(chain.Name))
{
String rule = ipc.GetRuleString(chain.Name, ipc_rule);
if (rule == null)
{
throw new IpTablesNetException("Unable to get string version of rule");
}
chains.AddRule(IpTablesRule.Parse(rule, _system, chains, _ipVersion, table));
}
}
return chains;
}
public static IpTablesChainSet GetRulesFromOutput(NetfilterSystem system, String output, String table, int ipVersion, bool ignoreErrors = false)
{
var ret = new IpTablesChainSet(ipVersion);
String ttable = null;
foreach (string lineRaw in output.Split(new[] { '\n' }))
{
string line = lineRaw.Trim();
if (String.IsNullOrEmpty(line))
continue;
char c = line[0];
IpTablesRule rule;
IpTablesChain chain;
switch (c)
{
case '*':
ttable = line.Substring(1);
break;
case ':':
string[] split = line.Split(new[] { ' ' });
ret.AddChain(new IpTablesChain(ttable, split[0].Substring(1), ipVersion, system));
break;
//Byte & packet count
case '[':
int positionEnd = line.IndexOf(']');
if (positionEnd == -1)
{
throw new IpTablesNetException("Parsing error, could not find end of counters");
}
string[] counters = line.Substring(1, positionEnd - 1).Split(new[] { ':' });
line = line.Substring(positionEnd + 1);
try
{
rule = IpTablesRule.Parse(line, system, ret, ipVersion, ttable);
}
catch
{
if (ignoreErrors)
{
continue;
}
throw;
}
rule.Counters = new PacketCounters(long.Parse(counters[0]), long.Parse(counters[1]));
ret.AddRule(rule);
break;
case '-':
rule = IpTablesRule.Parse(line, system, ret, ipVersion, ttable);
ret.AddRule(rule);
break;
case '#':
break;
case 'C':
if (line == "COMMIT" && ttable == table)
{
if (ttable == null)
{
throw new IpTablesNetException("Parsing error");
}
return ret;
}
throw new IpTablesNetException("Unexepected table \"" + table + "\" found \"" + ttable + "\" instead");
}
}
return null;
}
