private void FlushIPsInternal()
{
using var adapter = System.GetTableAdapter(4);
var sync = new DefaultNetfilterSync <IpTablesRule>();
(System.GetChain(adapter, IpTable, IpChain) as IpTablesChain).Sync(adapter, Enumerable.Empty <IpTablesRule>(), sync);
}
private async Task RefreshIPWhiteListAsync()
{
await AccessSemaphore.WaitAsync();
Logger.LogInformation("Refreshing iptables whitelist...");
FlushIPsInternal();
try
{
using var scope = Provider.CreateScope();
var dbContext = scope.ServiceProvider.GetRequiredService <MinerContext>();
using var adapter = System.GetTableAdapter(4);
var miners = await dbContext.Miners.ToListAsync();
var rules = new List <string>();
foreach (var miner in miners.Where(x => x.LastAddress != null && //Has an IP
x.NextIncrement >= DateTimeOffset.UtcNow - TimeSpan.FromHours(1))) //Has updated
{
rules.Add(GetAcceptRule(miner.LastAddress));
}
var ruleSet = new IpTablesRuleSet(4, rules, System);
var sync = new DefaultNetfilterSync <IpTablesRule>();
(System.GetChain(adapter, IpTable, IpChain) as IpTablesChain).Sync(adapter, ruleSet.Rules, sync);
Logger.LogInformation("Finished refreshing iptables whitelist");
}
catch (Exception ex)
{
Logger.LogError(ex, "There was an error while refreshing iptables whitelist");
}
finally
{
AccessSemaphore.Release();
}
}