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domains, this patch ensures that we always use the ADS backend when
security=ADS, and the remote server is capable.
The routines used for this behaviour have been upgraded to modern Samba
codeing standards.
This is a change in behaviour for mixed mode domains, and if the trusted
domain cannot be reached with our current krb5.conf file, we will show
that domain as disconnected.
This is in line with existing behaviour for native mode domains, and for
our primary domain.
As a consequence of testing this patch, I found that our kerberos error
handling was well below par - we would often throw away useful error
values. These changes move more routines to ADS_STATUS to return
kerberos errors.
Also found when valgrinding the setup, fix a few memory leaks.
While sniffing the resultant connections, I noticed we would query our
list of trusted domains twice - so I have reworked some of the code to
avoid that.
Andrew Bartlett
rpc_parse/parse_lsa.c:
nsswitch/winbindd_rpc.c:
nsswitch/winbindd.h:
- Add const
libads/ads_ldap.c:
- Cleanup function for use
nsswitch/winbindd_ads.c:
- Use new utility function ads_sid_to_dn
- Don't search for 'dn=', rather call the ads_search_retry_dn()
nsswitch/winbindd_ads.c:
include/rpc_ds.h:
rpc_client/cli_ds.c:
- Fixup braindamage in cli_ds_enum_domain_trusts():
- This function was returning a UNISTR2 up to the caller, and
was doing nasty (invalid, per valgrind) things with memcpy()
- Create a new structure that represents this informaiton in a useful way
and use talloc.
Andrew Bartlett
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.
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
- fix winbindd_pam bugs
- give a better error message for unauthorized access to auth_crap
- show this message in wbinfo
- fix spelling: privilaged -> privileged
** This changes the location of the winbindd privileged pipe **
(thanks to tpot)
Andrew Bartlett
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
the unix domain sockets used by winbindd (also solves FD_SETSIZE problem
in winbindd to boot !). Adds a "last_access" field to winbindd connections,
and will close the oldest idle connection once the number of open connections
goes over WINBINDD_MAX_SIMULTANEOUS_CLIENTS (defined in local.h as 200
currently).
Jeremy.
This patch fixes the segfaults I introduced in the previous conneciton caching
patch. It cleans up the connection cache a *lot* - in particular it adds
significant robustness to the operation.
If a the DC goes down, we no longer fail the next operation - the code checks
if the connection died during one of its own operations on the socket, and
restarts the conneciton as required.
There is still a memory leak in here somewhere - but this code also cleans up a
number of these.
Also added is the abilty to sepecify the domain of the 'get around restrict anonymous'
user that winbind uses.
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
the method used for checking if a domain is a trusted domain is very
crude, we should really call a backend fn of some sort. For now I'm
using winbindd to do the dirty work.
consistent backends (like ADS) always give correct primary group
info, so we can play cache tricks to speed things up a lot
inconsistent backends (like MSRPC) need to fetch stuff more often
the backends
at startup, loop until we get the domain sid for our primary domain,
trying every 10 seconds. This makes winbindd handle a room-wide power
failure better
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.
I spent quite a while trying to work out how to make this call
via ldap and failed. I then found that MS servers seem use rpc
for sid_to_name, and it works even when in native mode, I ended
up just implementing it via rpc
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
This just splits off the dispinfo call behind a methods structure.
I'll split off a few more functions soon, then we will be ready for
LDAP replacement methods
be easily added (a one liner) once we know the correct error codes returned
by a W2K DC.
All other winbindd calls should go through a similar transparent caching layer
(and will soon).
Jeremy.
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.
