summaryrefslogtreecommitdiff
path: root/source3/libsmb/ntlmssp_parse.c
AgeCommit message (Collapse)AuthorFilesLines
2004-02-10Fix for possible crash bug from Sebastian Krahmer (SuSE).Jeremy Allison1-2/+18
Jeremy. (This used to be commit e275835b516ec2e319ad5a6943be007d34a55d75)
2003-11-22Changes all over the shop, but all towards:Andrew Bartlett1-25/+8
- NTLM2 support in the server - KEY_EXCH support in the server - variable length session keys. In detail: - NTLM2 is an extension of NTLMv1, that is compatible with existing domain controllers (unlike NTLMv2, which requires a DC upgrade). * This is known as 'NTLMv2 session security' * (This is not yet implemented on the RPC pipes however, so there may well still be issues for PDC setups, particuarly around password changes. We do not fully understand the sign/seal implications of NTLM2 on RPC pipes.) This requires modifications to our authentication subsystem, as we must handle the 'challege' input into the challenge-response algorithm being changed. This also needs to be turned off for 'security=server', which does not support this. - KEY_EXCH is another 'security' mechanism, whereby the session key actually used by the server is sent by the client, rather than being the shared-secret directly or indirectly. - As both these methods change the session key, the auth subsystem needed to be changed, to 'override' session keys provided by the backend. - There has also been a major overhaul of the NTLMSSP subsystem, to merge the 'client' and 'server' functions, so they both operate on a single structure. This should help the SPNEGO implementation. - The 'names blob' in NTLMSSP is always in unicode - never in ascii. Don't make an ascii version ever. - The other big change is to allow variable length session keys. We have always assumed that session keys are 16 bytes long - and padded to this length if shorter. However, Kerberos session keys are 8 bytes long, when the krb5 login uses DES. * This fix allows SMB signging on machines not yet running MIT KRB5 1.3.1. * - Add better DEBUG() messages to ntlm_auth, warning administrators of misconfigurations that prevent access to the privileged pipe. This should help reduce some of the 'it just doesn't work' issues. - Fix data_blob_talloc() to behave the same way data_blob() does when passed a NULL data pointer. (just allocate) REMEMBER to make clean after this commit - I have changed plenty of data structures... (This used to be commit f3bbc87b0dac63426cda6fac7a295d3aad810ecc)
2003-10-29Fixes to check for wraps which could cause coredumps.Jeremy Allison1-4/+3
Jeremy. (This used to be commit ad06edd1bb58cc5e2c38a364b1af96a933b770af)
2003-08-14Change Samba to always use extended security for it's guest logins, (ie,Andrew Bartlett1-1/+2
NTLMSSP with "" username, NULL password), and add --machine-pass (-P) to all of Samba's clients. When connecting to an Active Directory DC, you must initiate the CIFS level session setup with Kerberos, not a guest login. If you don't, your machine account is demoted to NT4. Andrew Bartlett (This used to be commit 3547cb3def45a90f99f67829a533eac1ccba5e77)
2003-08-01Update my copyrights according to my agreement with IBMJim McDonough1-1/+1
(This used to be commit c9b209be2b17c2e4677cc30b46b1074f48878f43)
2003-07-14Jeremy requested that I get my NTLMSSP patch into CVS. He didn't requestAndrew Bartlett1-31/+44
the schannel code, but I've included that anyway. :-) This patch revives the client-side NTLMSSP support for RPC named pipes in Samba, and cleans up the client and server schannel code. The use of the new code is enabled by the 'sign', 'seal' and 'schannel' commands in rpcclient. The aim was to prove that our separate NTLMSSP client library actually implements NTLMSSP signing and sealing as per Microsoft's NTLMv1 implementation, in the hope that knowing this will assist us in correctly implementing NTLMSSP signing for SMB packets. (Still not yet functional) This patch replaces the NTLMSSP implementation in rpc_client/cli_pipe.c with calls to libsmb/ntlmssp.c. In the process, we have gained the ability to use the more secure NT password, and the ability to sign-only, instead of having to seal the pipe connection. (Previously we were limited to sealing, and could only use the LM-password derived key). Our new client-side NTLMSSP code also needed alteration to cope with our comparatively simple server-side implementation. A future step is to replace it with calls to the same NTLMSSP library. Also included in this patch is the schannel 'sign only' patch I submitted to the team earlier. While not enabled (and not functional, at this stage) the work in this patch makes the code paths *much* easier to follow. I have also included similar hooks in rpccleint to allow the use of schannel on *any* pipe. rpcclient now defaults to not using schannel (or any other extra per-pipe authenticiation) for any connection. The 'schannel' command enables schannel for all pipes until disabled. This code is also much more secure than the previous code, as changes to our cli_pipe routines ensure that the authentication footer cannot be removed by an attacker, and more error states are correctly handled. (The same needs to be done to our server) Andrew Bartlett (This used to be commit 5472ddc9eaf4e79c5b2e1c8ee8c7f190dc285f19)
2003-02-15Don't return NULL pointers for now.Andrew Bartlett1-4/+4
We should look into how to deal with NULL v "" strings, and the NTLMSSP code underneath properly at some stage. Andrew Bartlett (This used to be commit dc934412b0190ea75073cccddac45e74ebcd4a6b)
2003-02-15Move our NTLMSSP client code into ntlmssp.c. The intention is to provide aAndrew Bartlett1-3/+3
relitivly useful external lib from this code, and to remove the dupicate NTLMSSP code elsewhere in samba (RPC pipes, LDAP client). The code I've replaced this with in cliconnect.c is relitivly ugly, and I hope to replace it with a more general SPENGO layer at some later date. Andrew Bartlett (This used to be commit b2b66909ac2e251f8189e0696b6075dbf748521a)
2003-02-15Move our NTLMSSP code into easily seperated peices, not relying on the wholeAndrew Bartlett1-0/+303
of libsmb. Andrew Bartlett (This used to be commit b5ec7efa80478187124c1cfa8c7fcc4036506a37)