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(This used to be commit a6a39c61e8228c8b3b7552ab3c61ec3a6a639143)
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(This used to be commit 2750418752e491c5e87f0f2adf253291e31ee4c2)
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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)
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(This used to be commit c6c4f69b8ddc500890a65829e1b9fb7a3e9839e9)
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to the integer for SIVAL().
(This used to be commit 5e20868fadc4e01ea09639bc57c51d1eb687f78c)
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get Win2k to send a valid signiture in it's session setup reply - which it will
give to win2k clients.
So, I need to look at becoming 'more like MS', but for now I'll get this code
into the tree. It's actually based on the TNG cli_pipe_ntlmssp.c, as it was
slightly easier to understand than our own (but only the utility functions
remain in any way intact...).
This includes the mysical 'NTLM2' code - I have no idea if it actually works.
(I couldn't get TNG to use it for its pipes either).
Andrew Bartlett
(This used to be commit a034a5e381ba5612be21e2ba640d11f82cd945da)
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