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Before merging the s4 and s3 RPC servers the make_internal_rpc_pipe_p()
function did not fail when the requested interface was not registered in
the calling process because it did not check the return value of
rpc_srv_get_pipe_cmds(). If the interface was not registed, the pointer
to the interface functions was NULL and later, when dispatching a call,
rpcint_dispatch() returned NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE in this
case.
After merging the RPC servers, the rpc_pipe_open_internal() function
will return NT_STATUS_RPC_INTERFACE_NOT_FOUND if the interface is not
registered in the calling process. This causes a noisy error message in
winbind when it tries to open the dssetup pipe to the primary domain and
it is not an AD domain.
The callers of wb_open_internal_pipe() when connecting to the domain
already logs the error at level greather or equal to five. This commit
moves the dupplicated and noisy error message at level zero from
wb_open_internal_pipe() to its callers outside winbindd_cm.c.
This error can be seen in winbindd logs of ad_member and nt4_member test
environments.
[2021/03/01 16:49:38.486004, 0, pid=12456] ../../source3/winbindd/winbindd_cm.c:1893(wb_open_internal_pipe)
open_internal_pipe: Could not connect to dssetup pipe: NT_STATUS_RPC_INTERFACE_NOT_FOUND
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
When samba runs as ADDC only the main 'samba' daemon have to notify
its status to systemd because our systemd unit files contains implied
NotifyAccess=main since commit d1740fb3d5.
This commit adds a function to disable the systemd notification in the
smbd and winbinddd child processes started by the main 'samba' daemon in
AD DC mode to avoid warnings like:
systemd[1]: samba-ad-dc.service: Got notification message from PID 26194,
but reception only permitted for main PID 26187
systemd[1]: samba-ad-dc.service: Got notification message from PID 26222,
but reception only permitted for main PID 26187
$ pstree -p
...
├─samba(26187)─┬─tfork(26189)(26188)───s3fs[master](26189)───tfork(26194)(26193)───smbd(26194)─┬─cleanupd(+
│ │ ├─lpqd(2623+
│ │ └─smbd-noti+
│ ├─tfork(26191)(26190)───rpc[master](26191)─┬─tfork(26198)(26195)───rpc(0)(26198)
│ │ ├─tfork(26200)(26199)───rpc(1)(26200)
│ │ ├─tfork(26206)(26201)───rpc(2)(26206)
│ │ └─tfork(26212)(26207)───rpc(3)(26212)
│ ├─tfork(26196)(26192)───nbt[master](26196)
│ ├─tfork(26202)(26197)───wrepl[master](26202)
│ ├─tfork(26204)(26203)───ldap[master](26204)─┬─tfork(26242)(26241)───ldap(0)(26242)
│ │ ├─tfork(26244)(26243)───ldap(1)(26244)
│ │ ├─tfork(26246)(26245)───ldap(2)(26246)
│ │ └─tfork(26248)(26247)───ldap(3)(26248)
│ ├─tfork(26208)(26205)───cldap[master](26208)
│ ├─tfork(26210)(26209)───kdc[master](26210)───tfork(26218)(26215)───krb5kdc(26218)
│ ├─tfork(26213)(26211)───drepl[master](26213)
│ ├─tfork(26216)(26214)───winbindd[master(26216)───tfork(26222)(26219)───winbindd(26222)───wi+
│ ├─tfork(26220)(26217)───ntp_signd[maste(26220)
│ ├─tfork(26223)(26221)───kcc[master](26223)
│ ├─tfork(26225)(26224)───dnsupdate[maste(26225)
│ └─tfork(26227)(26226)───dns[master](26227)
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
All callers manually dissected the syntax id for this API.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Samuel Cabrero <scabrero@samba.org>
idmap_hash used to bounce back the requested type,
which was ID_TYPE_UID, ID_TYPE_GID or ID_TYPE_NOT_SPECIFIED
before as the winbindd parent always used a lookupsids.
When the lookupsids failed because of an unknown domain,
the idmap child weren't requested at all and the caller
sees ID_TYPE_NOT_SPECIFIED.
This module should have supported ID_TYPE_BOTH since
samba-4.1.0, similar to idmap_rid and idmap_autorid.
Now that the winbindd parent will pass ID_TYPE_BOTH in order to
indicate that the domain exists, it's better to always return
ID_TYPE_BOTH instead of a random mix of ID_TYPE_UID, ID_TYPE_GID
or ID_TYPE_BOTH. In order to request a type_hint it will return
ID_REQUIRE_TYPE for ID_TYPE_NOT_SPECIFIED, which means that
the parent at least assures that the domain sid exists.
And the caller still gets ID_TYPE_NOT_SPECIFIED if the
domain doesn't exist.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Jan 22 11:32:46 UTC 2021 on sn-devel-184
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
lp_load_global() will overwrite whatever we've set with lp_set_logfile().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14602
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
In preperation of forwarding MSG_SMB_CONF_UPDATED to all childs.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14602
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
It's a bit shocking how many references we have to global
contexts. Make this a bit more obvious.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
A lookupsids request without extra_data will lead to "state->domain==NULL",
which makes winbindd_lookupsids_recv trying to dereference it.
Reported by Bas Alberts of the GitHub Security Lab Team as GHSL-2020-134
Bug: https://bugzilla.samba.org/show_bug.cgi?id=14436
Signed-off-by: Volker Lendecke <vl@samba.org>
When systemd launches samba services, the configuration we have in
systemd service files expects that the main process (/usr/sbin/*)
would use sd_notify() to report back its status. However, we only use
sd_notify() when running become_daemon().
As a result, samba/smbd/winbindd/nmbd processes never report back its
status and the status updates from other childs (smbd, winbindd, etc)
are not accepted as we now have implied NotifyAccess=main since commit
d1740fb3d5
This leads to a timeout and killing samba process by systemd. Situation
is reproducible in Fedora 33, for example.
Make sure that we have required status updates for all daemons in case
we aren't runnning in interactive mode.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14552
Signed-off-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Oct 26 19:58:18 UTC 2020 on sn-devel-184
We only need this function once, so that we need to fix bugs only once...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14551
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Samuel Cabrero <scabrero@samba.org>
We try to give a valid hint for predefined sids and
pass ID_TYPE_BOTH as a hint that the domain part of the sid is valid.
In most cases the idmap child/backend does not require a type_hint
as mappings already exist.
This is a speed up as we no longer need to contact a domain controller.
It's also possible to accept kerberos authentication without reaching
out to a domain controller at all (if the idmap backend doesn't need a
hint).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Oct 23 04:47:26 UTC 2020 on sn-devel-184
This must only be used between winbindd parent and child!
It must not leak into outside world.
Some backends require ID_TYPE_UID or ID_TYPE_GID as type_hint,
while others may only need ID_TYPE_BOTH in order to validate that
the domain exists.
This will allow us to skip the wb_lookupsids_send/recv in the winbindd parent
in future and only do that on demand.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
In future we'll try to avoid wb_lookupsids_send() and only call
it if needed.
The domain name passed should be only relevant to find the correct
idmap backend, and these should all be available in
wb_parent_idmap_config as it was created before the idmap child was forked.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
After adding entries to the cache we can mark them
as filled from the cache by setting its domain_index
to UINT32_MAX.
This will allow further changes to fill the results
into state->all_ids in steps.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
In order to translate the indexes from state->lookup_sids[]
for wb_lookupsids_send/recv() and state->map_ids.ids[]
for dcerpc_wbint_Sids2UnixIDs_send/recv() back to
state->all_ids.ids[] or state->sids[] we have state->tmp_idx[].
This simplifies wb_sids2xids_recv() a lot and make further
restructuring much easier.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
With all the indexes we have into various array, this makes clear
'li' is the index into the state->lookup_sids array.
This makes the following changes easier to review.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Here we don't change the logic.
It will make the following changes easier.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Instead of re-creating the dom_ids element,
we just use a pre-allocated map_ids_in array.
This is a bit tricky as we need to use map_ids_out as a copy of
map_ids_in, because the _ids argument of dcerpc_wbint_Sids2UnixIDs_send()
in [in,out], which means that _ids->ids is changed between
dcerpc_wbint_Sids2UnixIDs_send() and dcerpc_wbint_Sids2UnixIDs_recv()!
If the domain doesn't need any mappings, we'll move to the next domain
early, for now this can't happend but it will in future.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
For the first run this is a no-op, but it simplified the caller.
We'll call wb_sids2xids_next_sids2unix() in a few more places in future
and it's easier to have this all within wb_sids2xids_next_sids2unix().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This array is used to pass to wb_lookupsids_send()
and that will be the only reason to have this in future.
For now it's used for all non cached sids, but that will
also change in the next commits.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Entries with domain_index == UINT32_MAX are valid cache entries.
In the following commits we'll fill in missing entries step by step
until all entries are marked as filled.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Put the code that calls the per-domain idmap backend
in its own function.
This makes further reconstruction easier.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
At startup we trigger a wb_parent_idmap_setup_send() and make
sure setup_child() is called just before wb_parent_idmap_setup_recv()
finished.
This makes sure our view of the idmap config in the parent matches
what we have in the child.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This isn't really used yet, but it will in the next commits.
Also idmap_child_handle() will soon assert that
wb_parent_idmap_setup_send/recv() was called before it's used.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This is more or less a copy of wb_xids2sids_init_dom_maps_send/recv,
but it's more generic and doesn't imply global state.
It also closes a initialization race by using a tevent_queue to
serialize the calls.
In the next commits we'll replace wb_xids2sids_init_dom_maps_send/recv.
We'll also use the new function in the wb_sids2xids code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
We should avoid calling idmap_child() as much as possible.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
We should avoid calling idmap_child() as much as possible.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This makes it clear that it's a hint from the parent to the
child.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14539
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Have to do both at once as they are intimately related.
The uglyness inside internal_resolve_name() will go away
once all the resove_XXX() functions return size_t values.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <npower@samba.org>
