public void Generate()
{
WriteLine("#Start nat config generator");
using (var db = new ApplicationDbContext())
{
var clients = db.Clients
.Include(c => c.GreyAddress)
.ThenInclude(g => g.White)
.Where(c => !c.IsDeleted)
.Where(c => c.GreyAddress != null)
.Where(c => c.GreyAddress.White != null)
.ToList();
clients.ForEach(c =>
{
var status = ClientMapper.CalculateClientStatus(c);
if (status != ClientStatus.Active)
{
WriteLine($"#{c.Login} state {status}");
return;
}
var grey = c.GreyAddress.Address;
var white = c.GreyAddress.White.Address;
WriteLine($"#2-way mapping for {c.Login}");
WriteLine($"/sbin/iptables -t nat -A PREROUTING -d {white} -j DNAT --to-destination {grey}");
WriteLine($"/sbin/iptables -t nat -A POSTROUTING -s {grey} -o eth0.52 -j SNAT --to-source {white}");
WriteLine();
});
}
WriteLine("#End nat config generator");
}