private static SecurityIdentifier[] ParseExtraSids(NdrBinaryReader pacStream, int extraSidCount, int extraSidPointer)
{
if (extraSidPointer == 0)
{
return(new SecurityIdentifier[0]);
}
int realExtraSidCount = pacStream.ReadInt();
if (realExtraSidCount != extraSidCount)
{
throw new InvalidDataException($"Expected Sid count {extraSidCount} doesn't match actual sid count {realExtraSidCount}");
}
var extraSidAtts = new SecurityIdentifier[extraSidCount];
var pointers = new int[extraSidCount];
var attributes = new SidAttributes[extraSidCount];
for (int i = 0; i < extraSidCount; i++)
{
pointers[i] = pacStream.ReadInt();
attributes[i] = (SidAttributes)pacStream.ReadUnsignedInt();
}
for (int i = 0; i < extraSidCount; i++)
{
SecurityIdentifier sid = null;
if (pointers[i] != 0)
{
sid = new SecurityIdentifier(pacStream.ReadSid(), attributes[i]);
}
extraSidAtts[i] = sid;
}
return(extraSidAtts);
}
public PacLogonInfo(byte[] node)
{
var pacStream = new NdrBinaryReader(node);
Header = new RpcHeader(pacStream);
LogonTime = pacStream.ReadFiletime();
LogoffTime = pacStream.ReadFiletime();
KickOffTime = pacStream.ReadFiletime();
PwdLastChangeTime = pacStream.ReadFiletime();
PwdCanChangeTime = pacStream.ReadFiletime();
PwdMustChangeTime = pacStream.ReadFiletime();
var userName = pacStream.ReadRPCUnicodeString();
var userDisplayName = pacStream.ReadRPCUnicodeString();
var logonScript = pacStream.ReadRPCUnicodeString();
var profilePath = pacStream.ReadRPCUnicodeString();
var homeDirectory = pacStream.ReadRPCUnicodeString();
var homeDrive = pacStream.ReadRPCUnicodeString();
LogonCount = pacStream.ReadShort();
BadPasswordCount = pacStream.ReadShort();
var userSid = pacStream.ReadRid();
var groupSid = pacStream.ReadRid();
// Groups information
var groupCount = pacStream.ReadInt();
var groupPointer = pacStream.ReadInt();
UserFlags = (UserFlags)pacStream.ReadInt();
// sessionKey
pacStream.Read(new byte[16]);
var serverNameString = pacStream.ReadRPCUnicodeString();
var domainNameString = pacStream.ReadRPCUnicodeString();
var domainIdPointer = pacStream.ReadInt();
// reserved1
pacStream.Read(new byte[8]);
UserAccountControl = (UserAccountControlFlags)pacStream.ReadInt();
SubAuthStatus = pacStream.ReadInt();
LastSuccessfulILogon = pacStream.ReadFiletime();
LastFailedILogon = pacStream.ReadFiletime();
FailedILogonCount = pacStream.ReadInt();
// reserved3
pacStream.ReadInt();
// Extra SIDs information
var extraSidCount = pacStream.ReadInt();
var extraSidPointer = pacStream.ReadInt();
var resourceDomainIdPointer = pacStream.ReadInt();
var resourceGroupCount = pacStream.ReadInt();
var resourceGroupPointer = pacStream.ReadInt();
UserName = userName.ReadString(pacStream);
UserDisplayName = userDisplayName.ReadString(pacStream);
LogonScript = logonScript.ReadString(pacStream);
ProfilePath = profilePath.ReadString(pacStream);
HomeDirectory = homeDirectory.ReadString(pacStream);
HomeDrive = homeDrive.ReadString(pacStream);
// Groups data
var groupSids = ParseAttributes(pacStream, groupCount, groupPointer);
// Server related strings
ServerName = serverNameString.ReadString(pacStream);
DomainName = domainNameString.ReadString(pacStream);
if (domainIdPointer != 0)
{
DomainSid = pacStream.ReadSid();
}
UserSid = userSid.AppendTo(DomainSid);
GroupSid = groupSid.AppendTo(DomainSid);
GroupSids = groupSids.Select(g => g.AppendTo(DomainSid)).ToList();
if (UserFlags.HasFlag(UserFlags.LOGON_EXTRA_SIDS))
{
ExtraSids = ParseExtraSids(pacStream, extraSidCount, extraSidPointer).Select(e => e.AppendTo(DomainSid)).ToList();
}
if (resourceDomainIdPointer != 0)
{
ResourceDomainSid = pacStream.ReadSid();
}
if (UserFlags.HasFlag(UserFlags.LOGON_RESOURCE_GROUPS))
{
ResourceGroups = ParseAttributes(
pacStream,
resourceGroupCount,
resourceGroupPointer
).Select(g => g.AppendTo(DomainSid)).ToList();
}
}