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* \PIPE\unixinfo
* winbindd's {group,alias}membership new functions
* winbindd's lookupsids() functionality
* swat (trunk changes to be reverted as per discussion with Deryck)
(This used to be commit 939c3cb5d78e3a2236209b296aa8aba8bdce32d3)
before trying the alternate format).
This only caused confusion and bug reports...
Andrew Bartlett
(This used to be commit 5cb02b569b39aa7a9dc6692a79ff1d1dfa69aee6)
functions so we can funnel through some well known functions. Should help greatly with
malloc checking.
HEAD patch to follow.
Jeremy.
(This used to be commit 620f2e608f70ba92f032720c031283d295c5c06a)
On systems with /dev/urandom, this avoids a change to secrets.tdb for every fork().
For other systems, we now only re-seed after a fork, and on startup.
No need to do it per-operation. This removes the 'need_reseed'
parameter from generate_random_buffer().
Andrew Bartlett
(This used to be commit 36741d3cf53a7bd17d361251f2bb50851cdb035f)
be anything, and may not be based on anything 'NT'. This is also what microsoft
calls it.
(This used to be commit 724e8d3f33719543146280062435c69a835c491e)
another NTLMv2 combination.
We should allow the NTLMv2 response to be calculated with either the domain
as supplied, or the domain in UPPER case (as we always did in the past).
As a client, we always UPPER case it (as per the spec), but we also
make sure to UPPER case the domain, when we send it. This should give
us maximum compatability.
Andrew Bartlett
(This used to be commit 1e91cd0cf87b29899641585f46b0dcecaefd848e)
test for a valid length to fail...
This should fix 'security=server' and hosts-equiv failures picked up by
the build farm.
Andrew Bartlett
(This used to be commit 39311495de3bd0a902f730967f30176db97be05a)
it sent 'INVALID_PARAMETER', when it was us as the server that could not
come up with a session key. Instead, allow normal authentication to take
place, but do not setup a session key.
Andrew Bartlett
(This used to be commit e5abd93d799e5f86839560feca448743c13a9055)
would incorrectly return INVALID_PARAMETER, instead of allowing a
login.
Andrew Bartlett
(This used to be commit 76c59469a340209959c420bd5c2e947d3347bdb1)
This fixes a problem joining a Samba domain from a
vanilla win2k client that doesn't set the
NTLMSSP_NEGOTIATE_NTLM2 flag.
Reported on samba ml as "decode_pw: incorrect password length"
when handling a samr_set_userinfo(23 or 24) RPC.
(This used to be commit ef4ab8d7c497e4229d0c1deeb20d05c95bd8feb9)
broken by my NTLM2 commit. This should correctly cause the NTLM2 case
not to be negotiated when 'security=server' is in effect.
Andrew Bartlett
(This used to be commit 19bb4b582f98eb1da41e22c9a2a2c11602cb95e4)
defaults specified by the caller to prevail.
Don't use NTLM2 for RPC pipes, until we know how it works in signing or sealing.
Call ntlmssp_sign_init() unconditionally in the client - we setup the
session key, why not setup the rest of the data.
Andrew Bartlett
(This used to be commit 48123f7e42c3fde85887de23c80ceee04c2f6281)
- 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)
portion of NTLMv2 key exchange. Also revert the default for
'client ntlmv2 auth' to no. This caused no ends of grief in
different cases.
And based on abartlet's mail....
> All I care about at this point is that we use NTLMv2
> in our client code when connecting to a server that
> supports it.
There is *no* way to tell this. The server can't tell us, because it
doesn't know what it's DC supports. The DC can't tell us, because it
doesn't know what the trusted DC supports. One DC might be Win2k, and
the PDC could be an older NT4.
(This used to be commit fe585d49cc3df0d71314ff43d3271d276d7d4503)
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)
authentication.
NTLM2 is a version of NTLM, that involves both a client and server challenge,
and the creating of a new (presuable more secure) session key.
Unfortunetly this is not quite the same as NTLMv2, and we don't know how to
get the session key. I suggest looking very closely at what MSCHAPv2, and
other MS auth protocols do...
Andrew Bartlett
(This used to be commit d4a5f4fdf97b707b44a0787267e1e4388d1b5388)
to be able to ask a LMB for the servers in its workgroup. Against
W2k this only works on port 139....
Volker
(This used to be commit 62b04d7776852098dd768268500f36c3a362f688)
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)
With big thanks to tpot for the ethereal disector, and for the base code
behind this, we now fully support NTLMv2 as a client.
In particular, we support it with direct domain logons (tested with ntlm_auth
--diagnostics), with 'old style' session setups, and with NTLMSSP.
In fact, for NTLMSSP we recycle one of the parts of the server's reply directly...
(we might need to parse for unicode issues later).
In particular, a Win2k domain controller now supplies us with a session key
for this password, which means that doman joins, and non-spnego SMB signing
are now supported with NTLMv2!
Andrew Bartlett
(This used to be commit 9f6a26769d345d319ec167cd0e82a45e1207ed81)
key, so we can test it in ntlm_auth.
I suspect the 'lm' version doesn't exist, but it's easy to change back.
Andrew Bartlett
(This used to be commit 5efd95622c411f123660b6613b86c7a68bba68e8)
NTLM Authentication:
- Add a 'privileged' mode to Winbindd. This is achieved by means of a directory
under lockdir, that the admin can change the group access for.
- This mode is now required to access with 'CRAP' authentication feature.
- This *will* break the current SQUID helper, so I've fixed up our ntlm_auth
replacement:
- Update our NTLMSSP code to cope with 'datagram' mode, where we don't get a
challenge.
- Use this to make our ntlm_auth utility suitable for use in current Squid 2.5
servers.
- Tested - works for Win2k clients, but not Win9X at present. NTLMSSP updates
are needed.
- Now uses fgets(), not x_fgets() to cope with Squid environment (I think
somthing to do with non-blocking stdin).
- Add much more robust connection code to wb_common.c - it will not connect to
a server of a different protocol version, and it will automatically try and
reconnect to the 'privileged' pipe if possible.
- This could help with 'privileged' idmap operations etc in future.
- Add a generic HEX encode routine to util_str.c,
- fix a small line of dodgy C in StrnCpy_fn()
- Correctly pull our 'session key' out of the info3 from th the DC. This is
used in both the auth code, and in for export over the winbind pipe to
ntlm_auth.
- Given the user's challenge/response and access to the privileged pipe,
allow external access to the 'session key'. To be used for MSCHAPv2
integration.
Andrew Bartlett
(This used to be commit ec071ca3dcbd3881dc08e6a8d7ac2ff0bcd57664)
- new kerberos code, allowing the account to change it's own password
without special SD settings required
- NTLMSSP client code, now seperated from cliconnect.c
- NTLMv2 client code
- SMB signing fixes
Andrew Bartlett
(This used to be commit 837680ca517982f2e5944730581a83012d4181ae)
The idea here is to seperate, as much as possible, the SPNEGO layer from the
NTLMSSP layer. This not only helps us with protocol correctness, but also
should allow further mechinisms to be added with relitive ease. I indend to
make the kerberos code use this shortly.
I've never seen the 'zero length blob' form of the anonymous login, so I've
removed that case.
Andrew Bartlett
(This used to be commit a8773c9f825539c5bc17e4200b16d7ebbe0b7620)
Change the 'cookie' to be the ntlmssp_context, and use the 'auth_context' on
that to store the cookie. Ensures that simple callbacks can 'just work'.
Also make it clear that we are doing a pull_string into a pstring, not just
any sized buffer.
Andrew Bartlett
(This used to be commit c7793f27188e658b7fc6336aa51d367eab36fc17)
