private static void WritePrincipal(PrincipalName principal, NdrBuffer buffer)
{
buffer.WriteInt32BigEndian((int)principal.NameType);
buffer.WriteInt32BigEndian(principal.Names.Count);
WriteData(Encoding.UTF8.GetBytes(principal.Realm), buffer);
foreach (var name in principal.Names)
{
WriteData(Encoding.UTF8.GetBytes(name), buffer);
}
}
private static void WriteAddresses(IEnumerable <KrbHostAddress> addresses, NdrBuffer buffer)
{
if (addresses == null)
{
addresses = Array.Empty <KrbHostAddress>();
}
buffer.WriteInt32BigEndian(addresses.Count());
foreach (var addr in addresses)
{
buffer.WriteInt16BigEndian((short)addr.AddressType);
WriteData(addr.Address, buffer);
}
}
private static void WriteAuthData(IEnumerable <KrbAuthorizationData> authData, NdrBuffer buffer)
{
if (authData == null)
{
authData = Array.Empty <KrbAuthorizationData>();
}
buffer.WriteInt32BigEndian(authData.Count());
foreach (var az in authData)
{
buffer.WriteInt16BigEndian((short)az.Type);
WriteData(az.Data, buffer);
}
}
private static void WriteCredential(Krb5Credential cred, NdrBuffer buffer)
{
WritePrincipal(cred.Client, buffer);
WritePrincipal(cred.Server, buffer);
WriteKeyBlock(cred.KeyBlock, buffer);
WriteDateTimeOffset(cred.AuthTime, buffer);
WriteDateTimeOffset(cred.StartTime, buffer);
WriteDateTimeOffset(cred.EndTime, buffer);
WriteDateTimeOffset(cred.RenewTill, buffer);
buffer.WriteByte(cred.IsKey ? (byte)0x1 : (byte)0x0);
buffer.WriteInt32BigEndian((int)cred.Flags);
WriteAddresses(cred.Addresses, buffer);
WriteAuthData(cred.AuthData, buffer);
WriteData(cred.Ticket, buffer);
WriteData(cred.SecondTicket, buffer);
}
private static void WriteData(ReadOnlyMemory <byte> data, NdrBuffer buffer)
{
buffer.WriteInt32BigEndian(data.Length);
buffer.WriteMemory(data);
}
private static void WriteDateTimeOffset(DateTimeOffset dt, NdrBuffer buffer)
{
var epoch = GetEpoch(dt);
buffer.WriteInt32BigEndian(epoch);
}
