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Add support for geting the sequence number, list of users, and list
of groups for a specific domain (assuming on reported back by
wbinfo -m)
wbinfo -u --domain=DOA
displaying pid_t, uid_t and gid_t values. This removes a whole lot of warnings
on some of the 64-bit build farm machines as well as help us out when 64-bit
uid/gid/pid values come along.
* remove idmap_XX_to_XX calls from smbd. Move back to the
the winbind_XXX and local_XXX calls used in 2.2
* all uid/gid allocation must involve winbindd now
* move flags field around in winbindd_request struct
* add WBFLAG_QUERY_ONLY option to winbindd_sid_to_[ug]id()
to prevent automatic allocation for unknown SIDs
* add 'winbind trusted domains only' parameter to force a domain member
server to use matching users names from /etc/passwd for its domain
(needed for domain member of a Samba domain)
* rename 'idmap only' to 'enable rid algorithm' for better clarity
(defaults to "yes")
code has been tested on
* domain member of native mode 2k domain
* ads domain member of native mode 2k domain
* domain member of NT4 domain
* domain member of Samba domain
* Samba PDC running winbindd with trusts
Logons tested using 2k clients and smbclient as domain users
and trusted users. Tested both 'winbind trusted domains only = [yes|no]'
This will be a long week of changes. The next item on the list is
winbindd_passdb.c & machine trust accounts not in /etc/passwd (done
via winbindd_passdb)
* rename original sam auth method to sam_ignoredomain
* remove samstrict_dc auth method (now covered by 'sam')
* fix wbinfo -a '...' and getent passwd bugs when running
winbindd on a samba PDC (reported by Volker)
to handle domain trusts. Jeremy and I talked about this
and it's going in as working code. It keeps winbind clean
and solves the trust problem with minimal changes.
To summarize, there are 2 basic cases where the deadlock would
occur. (1) lookuping up secondary groups for a user, and
(2) get[gr|pw]nam() calls that fall through the NSS layer because
they don't exist anywhere.
o To handle case #1, we bypass winbindd in sys_getgrouplist() unless
the username includes the 'winbind separator'.
o Case #2 is handled by adding checks in winbindd to return failure
if we are a DC and the domain matches our own.
This code has been tested using basic share connections, domain
logons, and with pam_winbind (both with and without 'winbind
use default domain'). The 'trustdomain' auth module should work
as well if an admin wants to manually create UNIX users for
acounts in the trusted domains.
Other misc fixes:
* we need to fix check_ntlm_password() to be able to determine
if an auth module is authoritative over a user (NT_STATUS_WRONG_PASSWORD,
etc...). I worked around my specific situation, but this needs to be
fixed. the winbindd auth module was causing delays.
* fix named server mutex deadlock between trust domain auth module
and winbindd looking up a uid
* make sure SAM_ACCOUNT gets stored in the server_info struct for the
_net_sam_logon() reply.
Configuration details:
The recommended method for supporting trusts is to use winbind.
The gets us around some of the server mutex issues as well.
* set 'files winbind' for passwd: and group: in /etc/nsswitch.conf
* create domain trusts like normal
* join winbind on the pdc to the Samba domain using 'net rpc join'
* add normal parameters to smb.conf for winbind
* set 'auth method = guest sam winbind'
* start smbd, nmbd, & winbindd
Problems that remain:
* join a Windows 2k/XP box to a Samba domain.
* create a 2-way trust between the Samba domain
and an NT domain
* logon to the windows client as a user from theh trusted
domain
* try to browse server in the trusted domain (or other
workstations). an NT client seems to work ok, but 2k
and XP either prompt for passwords or fail with errors.
apparanently this never got tested since no one has ever been
able to logon as a trusted user to a Samba domain from a Windows
client.
* move back to qsort() for sorting IP address in get_dc_list()
* remove dc_name_cache in cm_get_dc_name() since it slowed
things down more than it helped. I've made a note of where
to add in the negative connection cache in the ads code.
Will come back to that.
* fix rpcclient to use PRINTER_ALL_ACCESS for set printer (instead
of MAX_ALLOWED)
* only enumerate domain local groups in our domain
* simplify ldap search for seqnum in winbindd's rpc backend
* Fix code to use winbind_rpc methods for trusted mixed mode or NT4 domains
( does no one ever test this? )
* add in LDAP code to get the sequence number for rpc based seqnum update.
( this is needed if the DC is upgraded and samba is not reconfigured
to use security = ads; it's not pretty but it works (from app_head) )
* fix bug that caused us to enumerate domain local groups in domains
other than our own
As abartlet rememberd me NT_STATUS_IS_ERR != !NT_STATUS_IS_OK
This patch will cure the problem.
Working on this one I found 16 functions where I think NT_STATUS_IS_ERR() is
used correctly, but I'm not 100% sure, coders should check the use of
NT_STATUS_IS_ERR() in samba is ok now.
Simo.
This replaces the universal group caching code (was originally
based on that code). Only applies to the the RPC code.
One comment: domain local groups don't show up in 'getent group'
that's easy to fix.
Code has been tested against 2k domain but doesn't change anything
with respect to NT4 domains.
netsamlogon caching works pretty much like the universal group
caching code did but has had much more testing and puts winbind
mostly back in sync between branches.
have a primary ADS domain and a secondary (trusted) NT4 domain. This
caused winbindd to be *really* slow for that setup.
- fixed winbindd_getgrgid(), which was calling uid_to_sid instead of
gid_to_sid(). When you make changes to winbind *PLEASE* test using
nsstest.
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 includes the 'SIDs Rule' patch, mimir's trusted domains cacheing code,
the winbind_idmap abstraction (not idmap proper, but the stuff that held up
the winbind LDAP backend in HEAD).
Andrew Bartlett
this means "xcopy /o" has a chance of working with ACLs that contain
ACEs that use SIDs that the Samba server has no knowledge of.
It's a bit hackish, Tim, can you look at my uid.c changes?
the sid->uid and uid->sid conversions.
Remove some duplicate arguments from these funcitons, and update the
request/response structures for this and the 'winbind domain name' feature.
As such 'winbindd_lookup_name' now takes both a domain and username.
smbd, and also makes it much cleaner inside winbindd.
It is mostly my code, with a few changes and testing performed by Alexander
Bokovoy <a.bokovoy@sam-solutions.net>. ab has tested it in security=domain and
security=ads, but more testing is always appricatiated.
The idea is that we no longer cart around a 'domain\user' string, we keep them
seperate until the last moment - when we push that string into a pwent on onto
the socket.
This removes the need to be constantly parsing that string - the domain prefix
is almost always already provided, (only a couple of functions actually changed
arguments in all this).
Some consequential changes to the RPC client code, to stop it concatonating the
two strings (it now passes them both back as params).
I havn't changed the cache code, however the usernames will no longer have a
double domain prefix in the key string. The actual structures are unchanged
- but the meaning of 'username' in the 'rid' will have changed. (The cache is
invalidated at startup, so on-disk formats are not an issue here).
Andrew Bartlett
<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
the list received at startup or we get an out of date list. I thought
there might be some sequence number that is incremented when a trusted
domain is added or removed - perhaps there is but I just haven't found it
yet.
- Renamed get_domain_info() to init_domain_list()
- Made an accessor function to return the list of trusted domains rather
than using a global so we don't have to remember to put a magic init
function
- The getent state can not keep a pointer to a winbind_domain structure as
it may be freed if init_domain_list() is called again so we keep the
domain name instead
when they are added or removed on the PDC.
- renamed GETPWNAM_FROM_{UID,USER} constants and functions to GETPW{NAM,UID}
- renamed GETGRNAM_FROM_{GID,GROUP} constants and functions to GETGR{NAM,GID}
- use SIGUSR2 in winbindd for debugging/logging instead of SIGUSR1 in
preparation for moving to smbcontrol type messages (not sure whether to
ditch this altogether or not)
- tidy debugging messages in top level winbind user and group routines
- convert talloc_init() to talloc_init_named()
- make enumerations of the domain list use the same local variable names
this one looks like just another winbind backend, and has the
following properties:
- does -ve and +ve cacheing of all queries
- can be disabled with -n switch to winbindd
- stores all records packed, so even huge domains are not a problem
for a complete cache
- handles the server being down
- uses sequence numbers for all entries
This fixes a lot of problems with winbindd. Serving from cache is now
*very* fast.
also created winbindd_rpc.c which contains the functions that
have been converted to the new structure. There will soon be
a winbindd_ads.c for the ldap backend
