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- Fix warnings in loadparm.c
- Remove the unused 'passdb modules path' paramater
- Make pdb_ldap use $ termination rather than the workstation trust account
flag becouse some 'machine' accounts appear as normal accounts at creation
time. Also covers domains etc.
Andrew Bartlett
"One of these locks is not like the others... One of these locks is not
quite the same" :-). When is a zero timeout lock not zero ? When it's
being processed by Windows 2000 of course.. This code change, ugly though
it is - completely fixes the foxpro/access multi-user file system database
problems that people have been having. I used a *wonderful* test program
donated by "Gerald Drouillard" <gerald@drouillard.ca> which allowed me
to completely reproduce this problem, and to finally determine the correct
fix. This also explains why Windows 2000 is *so slow* when responding to
the smbtorture lock tests. I *love* it when all these things come together
and finally make sense :-).
Jeremy.
The main change here is to move ldap into the new pluggable passdb subsystem
and to take the LDAP location as a 'location' paramter on the 'passdb backend'
line in the smb.conf. This is an LDAP URL, parsed by OpenLDAP where supported,
and by hand where it isn't.
It also adds the ldap user suffix and ldap machine suffix smb.conf options,
so that machines added to the LDAP dir don't get mixed in with people.
Non-unix account support is also added. This means that machines don't need to
be in /etc/passwd or in nss_ldap's scope.
This code has stood up well under my production environment, so it relitivly
well tested.
I'm commiting this now becouse others have shown interest in using it, and
there is no point 'hording' the code :-).
Andrew Bartlett
Samba now features a pluggable passdb interface, along the same lines as the
one in use in the auth subsystem. In this case, only one backend may be active
at a time by the 'normal' interface, and only one backend per passdb_context is
permitted outside that.
This pluggable interface is designed to allow any number of passdb backends to
be compiled in, with the selection at runtime. The 'passdb backend' paramater
has been created (and documented!) to support this.
As such, configure has been modfied to allow (for example) --with-ldap and the
old smbpasswd to be selected at the same time.
This patch also introduces two new backends: smbpasswd_nua and tdbsam_nua.
These two backends accept 'non unix accounts', where the user does *not* exist
in /etc/passwd. These accounts' don't have UIDs in the unix sense, but to
avoid conflicts in the algroitmic mapping of RIDs, they use the values
specified in the 'non unix account range' paramter - in the same way as the
winbind ranges are specifed.
While I was at it, I cleaned up some of the code in pdb_tdb (code copied
directly from smbpasswd and not really considered properly). Most of this was
to do with % macro expansion on stored data. It isn't easy to get the macros
into the tdb, and the first password change will 'expand' them. tdbsam needs
to use a similar system to pdb_ldap in this regard.
This patch only makes minor adjustments to pdb_nisplus and pdb_ldap, becouse I
don't have the test facilities for these. I plan to incoroprate at least
pdb_ldap into this scheme after consultation with Jerry.
Each (converted) passdb module now no longer has any 'static' variables, and
only exports 1 init function outside its .c file.
The non-unix-account support in this patch has been proven! It is now possible
to join a win2k machine to a Samba PDC without an account in /etc/passwd!
Other changes:
Minor interface adjustments:
pdb_delete_sam_account() now takes a SAM_ACCOUNT, not a char*.
pdb_update_sam_account() no longer takes the 'override' argument that was being
ignored so often (every other passdb backend). Extra checks have been added in
some places.
Minor code changes:
smbpasswd no longer attempts to initialise the passdb at startup, this is
now done on first use.
pdbedit has lost some of its 'machine account' logic, as this behaviour is now
controlled by the passdb subsystem directly.
The samr subsystem no longer calls 'local password change', but does the pdb
interactions directly. This allow the ACB_ flags specifed to be transferred
direct to the backend, without interference.
Doco:
I've updated the doco to reflect some of the changes, and removed some paramters
no longer applicable to HEAD.
<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
probably will never actually be genearted, but I like the style in any case.
Also fix a segfault in 'net rpc' when the login failed and a small memory leak
on failure in the auth_info.c code.
Andrew Bartlett
- removed the ugly as hell sam_logon_in_ssb variable, I changed a bit the
definition of standard_sub_basic() to cope with that.
- removed the smb.conf: 'domain admin group' and 'domain guest group'
parameters ! We're not playing anymore with the user's group RIDs !
- in get_domain_user_groups(), if the user's gid is a group, put it first
in the group RID list.
I just have to write an HOWTO now ;-)
J.F.
We now default encrypt passwords = yes
We now check plaintext passwords (however aquired) with the 'sam' backend
rather than unix, if encrypt passwords = yes.
(this kills off the 'local' backed. The sam backend may be renamed in its
place)
The new 'samstrict' wrapper backend checks that the user's domain is one of
our netbios aliases - this ensures that we don't get fallback crazies with
security = domain.
Similarly, the code in the 'ntdomain' and 'smbserver' backends now checks
that the user was not local before contacting the DC.
The default ordering has changed, we now check the local stuff first - but
becouse of the changes above, we will really only ever contact one
auth source.
Andrew Bartlett
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
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
