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(This used to be commit 418bdd5919265bc74844401901d91edc84076314)
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<a.bokovoy@sam-solutions.net>.
The idea is the domain\username is rather harsh for unix systems - people don't
expect to have to FTP, SSH and (in particular) e-mail with a username like
that.
This 'corrects' that - but is not without its own problems.
As you can see from the changes to files like username.c and wb_client.c (smbd's
winbind client code) a lot of assumptions are made in a lot of places about
lp_winbind_seperator determining a users's status as a domain or local user.
The main change I will shortly be making is to investigate and kill off
winbind_initgroups() - as far as I know it was a workaround for an old bug in
winbind itself (and a bug in RH 5.2) and should no longer be relevent.
I am also going to move to using the 'winbind uid' and 'winbind gid' paramaters
to determine a user/groups's 'local' status, rather than the presence of the
seperator.
As such, this functionality is recommended for servers providing unix services,
but is currently less than optimal for windows clients.
(TODO: remove all references to lp_winbind_seperator() and
lp_winbind_use_default_domain() from smbd)
Andrew Bartlett
(This used to be commit 07a21fcd2311d2d9b430b99303e3532a8c1159e4)
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memory.
The winbind connection caching code isn't exactly a plesent beast, and there is
more work that needs to be done to nail this properly.
Andrew Bartlett
(This used to be commit dd40ce54b7f170854d63e08ac737f1b4306bd95b)
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This work was sponsored by Optifacio Software Services, Inc.
Andrew Bartlett
(various e-mails announcements merged into some form of commit message below:)
This patch which adds basics of universal groups support
into Samba 3. Currently, only Winbind with RPC calls supports this, ADS
support requires additional (possibly huge) work on KRB5 PAC. However,
basic infrastructure is here.
This patch adds:
1. Storing of universal groups for particular user logged into Samba
software (smbd/ two winbind-pam methods) into netlogon_unigrp.tdb as array
of uint32 supplemental group rids keyed as DOMAIN_SID/USER_RID in tdb.
2. Fetching of unversal groups for given user rid and domain sid from
netlogon_unigrp.tdb.
Since this is used in both smbd and winbindd, main code is in
source/lib/netlogon_uingrp.c. Dependencies are added to AUTH_OBJ as
UNIGRP_OBJ and WINBINDD_OBJ as UNIGRP_OBJ.
This patch has had a few versions, the final version in particular:
Many thanks to Andrew Bartlett for critics and comments, and partly
rewritten code.
New:
- updated fetching code to changed byte order macros
- moved functions to proper namespace
- optimized memory usage by reusing caller's memory context
- enhanced code to more follow Samba coding rules
Todo:
- proper universal group expiration after timeout
(This used to be commit 80c2aefbe7c1aa363dd286a47d50c5d8b4595f43)
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It adds a 'ping' request, just to check winbind is in fact alive
It also changes winbindd_pam_auth_crap to take usernames and domain seperatly.
(backward incompatible change, needs merge to 2.2, but this is not yet released
code, so no workarounds)
Finally, it adds some debugs and fixes a few memory leaks (uses talloc to do
it).
Andrew Bartlett
(This used to be commit 6df29bfe335144a968f5367f624ef2b4cf9e69b0)
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Also removed the dependency on auth_util.o, which makes things nicer.
Finally, this kills off the NECESSARY_BECAUSE_SAMBA_DEPENDENCIES_ARE_SO_BROKEN_OBJ
makefile variable - becouse Samba dependencies are starting to be sane again!
Andrew Bartlett
(This used to be commit 4609edcac3b70c11025f0c5aa0ddbeed93369c84)
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(This used to be commit 5ab2c8b8214236b4cd028f791e9ddb76a9973d74)
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Jeremy.
(This used to be commit 9563de2ef8c1197f4941671d2fdade7d933c32d0)
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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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winbindd.
(This used to be commit 72060a6f5af505d597f372d550d7f3fe559e5550)
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(This used to be commit 8f01a8b07883d18f44da665cbc8e5fba04d3bc91)
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pam authentication. This allows us to link in less other crap.
Authenticating with a challenge/response doesn't seem to work though - we
always get back NT_STATUS_WRONG_PASSWORD.
(This used to be commit d85aa1ce83327dda6aa3dcd9bbab9cf6979dda1e)
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(This used to be commit c80641b6f335aa706a2e384b7cfe7912be4a41b1)
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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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To obtain the full group membership of a user (i.e nested groups on a
win2k native mode server) it is necessary to merge this list of groups
with the groups returned by winbindd when creating an nt access token.
This breaks winbindd linking while AB and I sync up our changes to the
authentication subsystem.
(This used to be commit 4eeb7bcd783d7cfb3ac232f1faa035773007401d)
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I've wrapped up all the decisions about managing, making and closing
connections into a connection manager in nsswitch/winbindd_cm.c.
It's rather incomplete at the moment - only querying basic user info works
at the moment (i.e finger -m DOMAIN/user) and everything else is broken.
Jeremy, please take a look and I'll start moving across the rest of
winbindd to this new system.
(This used to be commit c369cf5af787ed9c642778d21f162716fbf0620e)
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- the usersupplied_info now contains a smb_username (as it comes across on
the wire) and a unix_username (after being passed through mapping
functions)
- when doing security={server,domain} use the smb_username, otherwise use
the unix_username
(This used to be commit d34fd8ec0716127c7a68eeb8e77d1ae8cc07b547)
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(This used to be commit c04c67fec85b1c81ef0b3cebacde304a1de0d854)
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the client code still needs some work
(This used to be commit dcd6e735f709a9231860ceb9682db40ff26c9a66)
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(This used to be commit 1d36250e338ae0ff9fbbf86019809205dd97d05e)
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(This used to be commit b4e79ab34b7df4687966f4ca81b575dce8503775)
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(This used to be commit 19cd6a1dc446830c1448f4a21a915ea8994dc268)
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Authentication Protocol (CRAP) takes a tuple of (username, random
challenge, encrypted lm password, encrypted nt password) where the
passwords are encrypted with the random challenge ala ntlmssp.
(This used to be commit 11f72a78e3a16bbb17b576d80b47a9eb818ee428)
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In particuar, it moves the domain_client_validate stuff out of
auth_domain.c to somwhere where they (I hope) they can be shared
with winbind better. (This may need some work)
The main purpose of this patch was however to improve some of the
internal documentation and to correctly place become_root()/unbecome_root()
calls within the code.
Finally this patch moves some more of auth.c into other files, auth_unix.c
in this case.
Andrew Bartlett
(This used to be commit ea1c547ac880def29f150de2172c95213509350e)
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samba-technical a few weeks ago.
The idea here is to standardize the checking of user names and passwords,
thereby ensuring that all authtentications pass the same standards. The
interface currently implemented in as
nt_status = check_password(user_info, server_info)
where user_info contains (mostly) the authentication data, and server_info
contains things like the user-id they got, and their resolved user name.
The current ugliness with the way the structures are created will be killed
the next revision, when they will be created and malloced by creator functions.
This patch also includes the first implementation of NTLMv2 in HEAD, but which
needs some more testing. We also add a hack to allow plaintext passwords to be
compared with smbpasswd, not the system password database.
Finally, this patch probably reintroduces the PAM accounts bug we had in
2.2.0, I'll fix that once this hits the tree. (I've just finished testing
it on a wide variety of platforms, so I want to get this patch in).
(This used to be commit b30b6202f31d339b48d51c0d38174cafd1cfcd42)
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strchr() for the moment
(This used to be commit c2c1f2027e6e623bba59610e3aa41618773e6361)
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can't redefine them. damn.
(This used to be commit c41fc06376d1a2b83690612304e85010b5e5f3cf)
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(This used to be commit bb01d2151cde866f0e2d91ee7c58439eeb382c48)
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(This used to be commit 083b74c743f0026693fa0fbe665ed08a3ac706b8)
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but I haven't actually run it yet so it probably doesn't work. (-:
(This used to be commit 59f95416b66db6df05289bde224de29c721978e5)
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Jeremy.
(This used to be commit 94747b4639ed9b19f7d0fb896e43aa392a84989a)
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(This used to be commit e49550b975dd407a1a8538c9885e036e400b7714)
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(This used to be commit 0189af544244d7d20e4042cd1238f370968cb7a9)
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this does not yet compile, but I'm working on that.
(This used to be commit 3fb862531a4e78dca13d16d958517b16e5bdd4e2)
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