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BUG: https://bugzilla.samba.org/show_bug.cgi?id=14852
Handling of logfile name for main and child winbindd must ensure:
1) Log directory is selected in this order:
* -l option of winbindd
* "log file" parameter in smb.conf
* compile time value '/usr/local/samba/var'
2) Log filename pattern
* parent process uses log.winbindd
* child uses log.wb-<name>
3) Log reopen works for both parent and child (i.e. log filename is not changed)
* kill -HUP <pid>
* smbcontrol <pid> reload-config
This commit removes 3 calls of is_default_dyn_LOGFILEBASE() to make sure that:
- 1st removal: child uses log.wb-<name> after the fork
- 2nd removal: child after HUP signal, does not switch to log.winbindd
- 3rd removal: child after smbcontrol reload-config, does not switch to
log.winbindd
Interesting commits: bfa1b2a81484b7f33b015a4cd1f7a371
Signed-off-by: Pavel Filipenský <pfilipen@redhat.com>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
In samba3 it is possible to run some services externally, for example:
rpc_daemon:lsasd = fork
rpc_server:netlogon = disabled
rpc_server:samr = external
rpc_server:lsarpc = external
The external services running in separate processes have to use its own
dedicated ncalrpc endpoint, otherwise will race with main smbd serving the
embedded services to accept connections on ncalrpc default socket. If the
connection ends in an external process and the client tries to bind to an
interface not registered there (like winreg for example) the bind will fail.
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue Sep 21 11:00:01 UTC 2021 on sn-devel-184
The only writer to this variable left with c377845d27. The
closest match for override_logfile is is_default_dyn_LOGFILEBASE()
with the opposite logic.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Sep 18 00:53:28 UTC 2021 on sn-devel-184
Note: this also changes logging to go to stderr instead of stdout which is the
same behaviour as smbd and nmbd (starting with 4.15).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14803
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Patches from the dcerpc patchset will create warnings out of this not
being initialized.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14779
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Aug 12 20:08:25 UTC 2021 on sn-devel-184
Handle the case where a NT4 DC does not fill in the acct_flags in
the samlogon reply info3. Yes, in 2021, there are still admins
arround with real NT4 DCs.
NT4 DCs reject authentication with workstation accounts with
NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT, even if
MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT is specified.
We no longer call dcerpc_samr_QueryUserInfo(level=16)
to get the acct_flags, as we only ever got
ACB_NORMAL back (maybe with ACB_PWNOEXP in addition),
which is easy to calculate on our own.
This was removed in commit (for 4.15.0rc1):
commit 73528f26ee
Author: Ralph Boehme <slow@samba.org>
AuthorDate: Mon Jan 11 14:59:46 2021 +0100
Commit: Jeremy Allison <jra@samba.org>
CommitDate: Thu Jan 21 22:56:20 2021 +0000
winbind: remove legacy flags fallback
Some very old NT4 DCs might have not returned the account flags filled in. This
shouldn't be a problem anymore. Additionally, on a typical domain member server,
this request is (and can only be) send to the primary domain, so this will not
work with accounts from trusted domains.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jan 21 22:56:20 UTC 2021 on sn-devel-184
It means one more caller of the problematic cm_connect_sam()
function is removed! SAMR connections may not be allowed for
machine accounts with modern AD DCs.
For network logons NT4 DCs also skip the
account_name, so we have to fallback to the
one given by the client. We have code to cope
with that deeply hidden inside of netsamlogon_cache_store().
Up to Samba 4.7 netsamlogon_cache_store() operated on the
info3 structure that was passed to the caller of winbind_dual_SamLogon()
and pass propagated up to auth_winbind in smbd.
But for Samba 4.8 the following commit:
commit f153c95176
Author: Ralph Boehme <slow@samba.org>
Date: Mon Dec 11 16:25:35 2017 +0100
winbindd: let winbind_dual_SamLogon return validation
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
actually changed the situation and only a temporary info3 structure
was passed into netsamlogon_cache_store(), which means
account_name was NULL and get propagated as "" into auth_winbind
in smbd, where getpwnam() is no longer possible and every
smb access gets NT_STATUS_LOGON_FAILURE.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14772
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Aug 3 11:10:27 UTC 2021 on sn-devel-184
The new code uses PING_DC to tell the child to try to go online.
Pair-Programmed-With: Andreas Schneider <asn@samba.org>
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Isaac Boukris <iboukris@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Thu Apr 29 15:49:16 UTC 2021 on sn-devel-184
The sequence number is used to detect if the cache is still valid. It
expires when the `winbind cache time` is over. After that time we want
to fetch new information from a DC to make sure we are up to date.
If a DC goes down and we recreate the connection, we want to expire the
caches sooner. So we reset the sequence number and the next call should
refill the caches.
Using the current time as the sequence number is more reliable, as the
sequence number of two DCs could in theory be equal. All we have to do
is to make sure we reset it after we reconnect to a DC.
Previously the sequence number check was based on the AD database change
sequence number. Now this is based on a current time value which gets
reset after a successful (re)connect.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14695
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Apr 29 04:48:37 UTC 2021 on sn-devel-184
Those calls were only used in winbindd_samr which now does direct and
simpler samr calls.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Same argument as with previous patches: We don't need fancy lsa
routing and samr is less prone to deadlock back into winbind
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Same argument as with name_to_sid: We don't need the lsa lookup
routing, and samr is less prone to deadlocking.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
After the "Unix Users/Groups" and wkn names have been taken care of,
all that remains here is our domain (BUILTIN or workgroup). We don't
need any of the fancy routing in lsa_lookupnames, and samr_LookupNames
is a lot less prone to deadlocks back into winbind.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
"Unix Users" and "Unix Groups" can recurse into nsswitch and thus into
winbind. In the binding process, we have winbindd_off(), but if we
pass the lookupNames request to a forked lsad, lsad does not
necessarily have that setting. So lsad might turn back to winbind,
which could lead to a deadlock. Handle the nsswitch lookups in
winbind.
While there, also do the simple wellknown names and the "DOMAIN\" type
3 lookups directly in winbind.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
If you try to allocate a GID before winbind is fully set up,
idmap_child_handle() is still NULL. Add the required
wb_parent_idmap_setup_send()/recv() to allocate_gid().
Bug: https://bugzilla.samba.org/show_bug.cgi?id=14678
RN: Fix a crash in winbind when allocate-gid is called early
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
is_myname() looks at lp_* directly, nmbd maintains its own list: We don't
need the baroque loadparm handler anymore.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This structure just grew from 3 to 6 pointers, avoid making a copy of
this. All callers of dcesrv_init_context() have this as a static
struct in the C object, so a pointer to that won't change.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Not used right now, but we should never have callbacks without a
"private_data" pointer. Some of the callbacks could even today benefit
from this.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
