On Thu, 19 Sep 2002, Vijay Kota wrote: > I too think the algorithm is not the same since I implemented the RPC > using the same algorithm (cred_session_key() and cred_create(zerotime)) > but got 0xC0000022. This was with a flags value of 0x0007FFFF. However, > the PDC returns STATUS_SUCCESS if flags = 0x000001FF. So the flags field > seems to be significant.
Hang on. Here, you are saying that you implemented the server side of ServerAuthenticate3 and generated the response. > Strangely though, if I don't align after the challenge and push a > 0x006B006B (or 0x0000006B) before the neg_flags (= 0x0007FFFF), I could > get it to work. I am not claiming that the preceding statement was very > logical :-)) but it would be great if someone could verify it and at > least disprove it. Are you saying you had to push this into the response? In the trace I have, Ethereal dissects the response as (courtesy of Luke Howard) Credentials (via a pointer) 8 bytes Flags, in this case 0x0007ffff Unknown UINT32: 0x00000452 Status: SS_SUCCESS (0) And the flgs are properly aligned. > Vijay > > -----Original Message----- > From: Luke Howard [mailto:[EMAIL PROTECTED]] > Sent: Thursday, September 19, 2002 12:56 AM > To: [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED] > Subject: Re: unknown RPC opcodes during join+logon > > > >The return code always follows the last top-level [out] value, but > there > >is an additional [out] ULONG in NetrServerAuthenticate3. > > > >The algorithm for calculating credentials is the same. > > Actually, I'm no longer sure this is the case. It seems that the > algorithm for NetrServerAuthenticate3 is the same if the client > thinks the domain is an NT4 domain (in which case it talks to it > over SMB), but it looks like the algorithm is different in a > Windows 2000 domain (where the RPC is made over ncacn_ip_tcp), > as unlikely as this seems (given they are the same RPC). Note > that the flags are ostensibly irrelevant, because the client > sends the authenticator before it receives the flags from the > server. > > -- Luke > > -- > Luke Howard | PADL Software Pty Ltd | www.padl.com > -- Regards ----- Richard Sharpe, [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]