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allocation
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)
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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)
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Jeremy.
(This used to be commit 8cfaf575e5161e8307b0a53bd44e84c633e85aed)
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history code.
Error code paths were not freeing up some memory.
Jeremy.
(This used to be commit 7c4666e56c2c281e023c6483459cb9e8d4787d36)
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cache the
netlogon session key and try to reconnect using that key. This fails with a
restarted smbd, we expect another serverauth2. XP falls back immediately.
Make the corresponding messages a debug level 3, not 0 to not flood log.smbd.
Volker
(This used to be commit 4fda68a62fec6c1e95d5176bc5d06bd49da6f358)
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support 128 bit encryption
(This used to be commit 316ba5ad89ddfa445d44d28141c5901fc64aec90)
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with the actual data to return.
Jeremy.
(This used to be commit 7f837db6e47af39b4a33e10e745823b19edb3715)
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Jeremy.
(This used to be commit 038cae8a377b75d70a099f03cb1b8ae9b50e7613)
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(This used to be commit 911a28361b9d8dd50597627f245ebfb57c6294fb)
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(This used to be commit 1fae60ab20c5cbe396dc8af1c8c9a98d5683fdf4)
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- 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)
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clientspreviously joined to the Samba domain
(This used to be commit 3802f5895ee18507c6f467bd11db0b1147a6fdfd)
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(This used to be commit a6a39c61e8228c8b3b7552ab3c61ec3a6a639143)
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(This used to be commit dd9cb6f820c2acf658eb081fb6ffc7e9b6b3c8d6)
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There is a workaround documented in the bug report.
This patch does:
* add server support for the LSA_DS UUID on the lsarpc pipe
* store a list of context_ids/api_structs in the pipe_struct
so that we don't have to lookup the function table for a pipe.
We just match the context_id. Note that a dce/rpc alter_context
does not destroy the previous context so it is possible to
have multiple bindings active on the same pipe. Observed from
standalone win2k sp4 client.
* added server code for DsROleGetPrimaryDOmainInfo() but disabled it
since it causes problems enumerating users and groups from a 2ksp4
domain member in a Samba domain.
(This used to be commit 96bc2abfcb0dd0912696fad76e43cb217b33e061)
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Jeremy.
(This used to be commit 049e77d636c5abd0fdd8840c3c4c465708354ed7)
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(This used to be commit a2bd8f0bfa12f2a1e33c96bc9dabcc0e2171700d)
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(This used to be commit 15d2bc47854df75f8b2644ccbc887d0357d9cd27)
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so the shared sequence number will not be strictly odd/even.
Andrew Bartlett
(This used to be commit 77c3e69aef545d3f9b7cec9efdc366cbeb0c745e)
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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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- The 'not implmented' checks are now done by all auth modules
- the ntdomain/trustdomain/winbind modules are more presise as to
what domain names they can and cannot handle
- The become_root() calls are now around the winbind pipe opening only,
not the entire auth call
- The unix username is kept seperate from the NT username, removing the
need for 'clean off the domain\' in parse_net.c
- All sid->uid translations are now validated with getpwuid() to put a very
basic stop to logins with 'half deleted' accounts.
Andrew Bartlett
(This used to be commit 85f88191b9927cc434645ef4c1eaf5ec0e8af2ec)
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We really need idmap_ldap to have a good solution with ldapsam, porting
it from the prvious code is beeing made, the code is really simple to do
so I am confident it is not a problem to commit this code in.
Not committing it would have been worst.
I really would have been able to finish also the group code, maybe we can
put it into a followin release after 3.0.0 even if it may be an upgrade
problem.
The code has been tested and seem to work right, more testing is needed for
corner cases.
Currently winbind pdc (working only for users and not for groups) is
disabled as I was not able to make a complete group code replacement that
works somewhat in a week (I have a complete patch, but there are bugs)
Simo.
(This used to be commit 0e58085978f984436815114a2ec347cf7899a89d)
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function. Patch by metze with some minor modifications.
(This used to be commit bc4b51bcb2daa7271c884cb83bf8bdba6d3a9b6d)
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samlogon call certainly breaks the credential chain. Do it once during
the bind response.
Volker
(This used to be commit d4262c37f13642e034d3e207bfbb563c17a8a176)
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multi-PDU encode/decode with SCHANNEL. Also need to test against WNT DC.
Jeremy.
(This used to be commit ff66d4097088409205b6bad5124a78ef9946010d)
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(This used to be commit aca7319e8d45eb604f28b8bd490413b08e2c98f2)
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Only compiled in when --enable-developer argument passed to configure.
(This used to be commit 017da9393bab276543d0d5c50df8c760780f2450)
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schannel clients.
Volker
(This used to be commit 0f348a35d09ff020837119157ef7f4b9e6f07643)
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No more XP requiresignorseal anymore!
Thanks again to Luke :-)
Volker
(This used to be commit 6b2b55901d66cab0c0c0c90bd0585c870be6e468)
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Jeremy.
(This used to be commit dedc18212a5174b6abac60ede9828f9b726a6c2d)
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Needed to move to disk based i/o later.
Jeremy.
(This used to be commit a823fee5b41a5b6cd4ef05aa1f85f7725bd272a5)
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(This used to be commit d9c485b01017594d113502f9de2248d6c120cfa3)
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warnings. (Adds a lot of const).
Andrew Bartlett
(This used to be commit 3a7458f9472432ef12c43008414925fd1ce8ea0c)
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from APP_HEAD
(This used to be commit 1cfd2ee433305e91e87804dd55d10e025d30a69e)
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(This used to be commit 65e7b5273bb58802bf0c389b77f7fcae0a1f6139)
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(This used to be commit 03ac082dcb375b6f3ca3d810a6a6367542bc23ce)
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Changed "SMB/Netbios" to "SMB/CIFS" in file header.
(This used to be commit 6a58c9bd06d0d7502a24bf5ce5a2faf0a146edfa)
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Jeremy.
(This used to be commit 0db93d8752197e213f0974edae53e2dafdd77b51)
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This time its the pdb_getsampwuid() function - which was only being used by the
SAMR rpc subsystem to gain a 'user session key'. This 'user session key' is
actually generated at login time, and the other changes here simply move that
data around.
This also means that (when I check some details) we will be able to use the
user session key, even when we are not actually the DC, becouse its one of the
components of the info3 struct returned on logon.
Andrew Bartlett
(This used to be commit 799ac01fe08a338e4e94289f5d6767ebf905c1fa)
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Also more insertion of parenthesis to handle struct members called
'free'.
You can now get useful dmalloc output, as long as it is compatible
with your C library. On RH7.1 it looks like you have to rebuild
dmalloc to allow free(0) by default, because something in libcrypt
does that. (sigh)
(This used to be commit 391cbb690196537c8b6292b42c2e27408cc7e249)
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The auth_authsupplied_info typedef is now just a plain struct - auth_context,
but it has been modified to contain the function pointers to the rest
of the auth subsystem's components.
(Who needs non-static functions anyway?)
In working all this mess out, I fixed a number of memory leaks and moved the
entire auth subsystem over to talloc().
Note that the TALLOC_CTX attached to the auth_context can be rather long-lived,
it is provided for things that are intended to live as long. (The
global_negprot_auth_context lasts the whole life of the smbd).
I've also adjusted a few things in auth_domain.c, mainly passing the domain as
a paramater to a few functions instead of looking up lp_workgroup(). I'm
hopign to make this entire thing a bit more trusted domains (as PDC) freindly
in the near future.
Other than that, I moved a bit of the code around, hence the rather messy diff.
Andrew Bartlett
(This used to be commit 12f5515f556cf39fea98134fe3e2ac4540501048)
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members (such as uid and gid). This way we will be able to
keep ourselves from writing out default smb.conf settings when
the admin doesn't want to, That part is not done yet.
Tested compiles with ldap/tdb/smbpasswd. Tested connection with smbpasswd
backend.
oh...and smbpasswd doesn'y automatically expire accounts after 21 days
from the last password change either now. Just ifdef'd out that code
in build_sam_account().
Will merge updates into 2.2 as they are necessary.
jerry
(This used to be commit f0d43791157d8f04a13a07d029f203ad4384d317)
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subystem.
The particular aim is to modularized the interface - so that we
can have arbitrary password back-ends.
This code adds one such back-end, a 'winbind' module to authenticate
against the winbind_auth_crap functionality. While fully-functional
this code is mainly useful as a demonstration, because we don't get
back the info3 as we would for direct ntdomain authentication.
This commit introduced the new 'auth methods' parameter, in the
spirit of the 'auth order' discussed on the lists. It is renamed
because not all the methods may be consulted, even if previous
methods fail - they may not have a suitable challenge for example.
Also, we have a 'local' authentication method, for old-style
'unix if plaintext, sam if encrypted' authentication and a
'guest' module to handle guest logins in a single place.
While this current design is not ideal, I feel that it does
provide a better infrastructure than the current design, and can
be built upon.
The following parameters have changed:
- use rhosts =
This has been replaced by the 'rhosts' authentication method,
and can be specified like 'auth methods = guest rhosts'
- hosts equiv =
This needs both this parameter and an 'auth methods' entry
to be effective. (auth methods = guest hostsequiv ....)
- plaintext to smbpasswd =
This is replaced by specifying 'sam' rather than 'local'
in the auth methods.
The security = parameter is unchanged, and now provides defaults
for the 'auth methods' parameter.
The available auth methods are:
guest
rhosts
hostsequiv
sam (passdb direct hash access)
unix (PAM, crypt() etc)
local (the combination of the above, based on encryption)
smbserver (old security=server)
ntdomain (old security=domain)
winbind (use winbind to cache DC connections)
Assistance in testing, or the production of new and interesting
authentication modules is always appreciated.
Andrew Bartlett
(This used to be commit 8d31eae52a9757739711dbb82035a4dfe6b40c99)
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per-share. I beleive that almost all the things that this could have done on
a per-share basis can be done with other tools, like 'force user'.
Almost all the user's of this paramater used it as a global anyway...
While this is one step at a time, I hope it will allow me to considerably
simplfy the make_connection() code, particularly for the user-level security
case.
This already removes an absolute truckload of extra attempted password lookups
on the guest account.
Andrew Bartlett
(This used to be commit 8e708332eded210c1d1fe0cebca3c9c19f054b71)
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This changes the way we process guest logons - we now treat them as normal
logons, but set the 'guest' flag. In particular this is needed becouse Win2k
will do an NTLMSSP login with username "", therefore missing our previous guest
connection code - this is getting a pain to do as a special case all over the
shop.
Tridge: We don't seem to be setting a guest bit for NTLMSSP, in either the
anonymous or authenticated case, can you take a look at this?
Also some cleanups in the check_password() code that should make some of the
debugs clearer.
Various other minor cleanups:
- change the session code to just take a vuser, rather than having to do a
vuid lookup on vuser.vuid
- Change some of the global_client_caps linking
- Better debug in authorise_login(): show the vuid.
Andrew Bartlett
(This used to be commit 62f4e4bd0aef9ade653b3f8d575d2864c166ab4d)
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groups obtained via a domain logon are respected in the attached NT_USER_TOKEN.
This functionality is only available in HEAD, becosue of the way authenticaion
has been abstracted.
Both vuid logins and authenticated pipes need to use the same code for this in
future.
Can sombody with the correct facilties check this please?\
Thanks,
Andrew Bartlett
(This used to be commit caae69fcd096f20aa4c6879b95ec2c275afea041)
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Got "medieval on our ass" about const warnings (as many as I could :-).
Jeremy.
(This used to be commit ee5e7ca547eff016818ba5c43b8ea0c9fa69b808)
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(This used to be commit e0b56a31480906b39f37761eed20d3cad0d53973)
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(This used to be commit 813bf962ae6f29ddcaee4bc8b67d8017f04172b1)
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code.
In particular this assists tpot in some of his work, becouse it provides the
connection between the authenticaion and the vuid generation.
Major Changes:
- Fully malloc'ed structures.
- Massive rework of the code so that all structures are made and destroyed
using malloc and free, rather than hanging around on the stack.
- SAM_ACCOUNT unix uids and gids are now pointers to the same, to allow them
to be declared 'invalid' without the chance that people might get ROOT by
default.
- kill off some of the "DOMAIN\user" lookups. These can be readded at a more
appropriate place (probably domain_client_validate.c) in the future. They
don't belong in session setups.
- Massive introduction of DATA_BLOB structures, particularly for passwords.
- Use NTLMSSP flags to tell the backend what its getting, rather than magic
lenghths.
- Fix winbind back up again, but tpot is redoing this soon anyway.
- Abstract much of the work in srv_netlog_nt back into auth helper functions.
This is a LARGE change, and any assistance is testing it is appriciated.
Domain logons are still broken (as far as I can tell) but other functionality
seems
intact.
Needs testing with a wide variety of MS clients.
Andrew Bartlett
(This used to be commit f70fb819b2f57bd57232b51808345e2319d52f6c)
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