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This verifies that if the initial create fails with
NT_STATUS_OBJECT_NAME_NOT_FOUND, compount related operations fail with the same
error.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We want to verify what Windows does when the first request of the
chain has failed and an async request is part of the chain. We see
Windows fails the async request with the same error. Also the async
request is immediately failed.
Signed-off-by: Anubhav Rakshit <anubhav.rakshit@gmail.com>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We already pass samba3.smb2.compound.related5, but mark related4 as knownfail.
Signed-off-by: Anubhav Rakshit <anubhav.rakshit@gmail.com>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We know that the parent name must
exist, and the name has been canonicalized
even if this was a POSIX pathname.
Ensure that we follow symlinks for
the parent. See the torture test
POSIX-SYMLINK-PARENT for details.
Remove knownfail entry.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed Apr 7 15:39:45 UTC 2021 on sn-devel-184
This creates a directory, then a symlink to a directory,
and then checks we can POSIX create and delete file, directory,
symlink and hardlink filesystem objects under the symlink
parent directory.
Mark as knownfail until next commit.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Right now a new association group is created for each connection
assigning the legacy 0x53F0 id, but it is not stored anywhere. When a
second client request to join an association group by its id it is not
found and a new one is created with the same ID.
In practise, it means the association groups are not working even in the
same server process.
This commit stores the created association group in the idtree, but to
make use of it assigns a random id instead of the historical 0x53F0.
The test assoc_group_ok2 was wrongly passing before this change because
the same id 0x53F0 was assigned to all association groups.
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Add a test to check if a RPC handle can be used from a different connection
than the one where it was created, when the same association group is
requested in the bind operation of the second connection.
The association group handling is one of the differences between the S3
and S4 RPC server implementations provided by the implementation
callbacks after the merge.
Association groups work fine in the S4 implementation as the RPC server
runs in one process, except for the 'smbd' embedded services provided
by the S3 implementation like winreg (see lp_enforce_ad_dc_settings()).
In the S3 implementation, association groups should work in the same
process, but the merge introduced a bug where a new association group is
always created even when it already exists in the same process.
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Since the length of the krbtgt password after conversion to UTF-8 form is
typically greater than the maximum accepted by crypt(), the call usually
fails. This commit disables generation of crypt() passwords for this specific
account, as it's not necessary.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14621
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14621
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
I haven't figured out how to properly add a crashing test to
"knownfail", so this is added after the fix.
Signed-off-by: Volker Lendecke <vl@samba.org>
This allows to set the 'log level' for clients on the command line:
make test TESTS=wurst CLIENT_LOG_LEVEL=10
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): Wed Mar 31 21:20:23 UTC 2021 on sn-devel-184
As this is done on existing files, we know that
fsp->base_fsp != NULL and fsp->base_fsp->fh->fd != -1
(i.e. it's a pathref fd) for stream handles.
When getting and setting ACLs on stream handles,
use the fsp->base_fsp instead (as Windows does).
This not only fixes streams_xattr, but will
allow us to later analyze and remove all
special casing code for get/set ACLs on streams
handles.
Remove the knownfail.d/stream-acl file.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Mar 30 20:14:35 UTC 2021 on sn-devel-184
It shows this isn't done correctly for streams_xattr.
A common config is:
vfs_objects = streams_xattr acl_xattr
to store both streams and Windows ACLs in xattrs.
Unfortunately getting and setting ACLs using handles
opened on stream files isn't being done correctly
in Samba.
This test passes against Windows 10.
This adds tests that prove this doesn't work. Next
patch will add the fix and remove the knownfail.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
In order to allow replays of requests on a channel failure, we should
not cancel pending requests, the strategie that seems to make windows
clients happy is to let the requests running and return
NT_STATUS_FILE_NOT_AVAILABLE as long as the original request is still
pending.
Here we introduce xconn->transport.shutdown_wait_queue, this is used
to keep the xconn alive for the lifetime of pending requests.
Now we only cancel pending requests if the disconnected connection
is the last channel for a session.
In that case smbXsrv_session_remove_channel() and
smb2srv_session_shutdown_send() will take care of it.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14449
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Before processing an open we need to reserve the replay cache entry
in order to signal that we're still in progress.
If a reserved record is already present we need to return
FILE_NOT_AVAILABLE in order to let the client retry again.
[MS-SMB2] contains this:
<152> Section 3.2.5.1: For the following error codes, Windows-based clients
will retry the operation up to three times and then retry the operation every 5
seconds until the count of milliseconds specified by Open.ResilientTimeout is
exceeded:
- STATUS_SERVER_UNAVAILABLE
- STATUS_FILE_NOT_AVAILABLE
- STATUS_SHARE_UNAVAILABLE
This works fine for windows clients, but current windows servers seems to
return ACCESS_DENIED instead of FILE_NOT_AVAILABLE.
A Windows server doesn't do any replay detection on pending opens,
which wait for a HANDLE lease to be broken (because of a
SHARING_VIOLATION), at all.
As this is not really documented for the server part of the current [MS-SMB2],
I found the key hint in "SMB 2.2: Bigger. Faster. Scalier - (Parts 1 and 2)"
on page 24. There's a picture showing that a replay gets FILE_NOT_AVAILABLE
as long as the original request is still in progress. See:
https://www.snia.org/educational-library/smb-22-bigger-faster-scalier-parts-1-and-2-2011
A Windows client is unhappy with the current windows server behavior if it
such a situation happens. There's also a very strange interaction with oplock
where the replay gets SHARING_VIOLATION after 35 seconds because it conflicts with
the original open.
I think it's good to follow the intial design from the 2011 presentation and
make the clients happy by using FILE_NOT_AVAILABLE (and differ from Windows).
I'll report that to dochelp@microsoft.com in order to get this hopefully fixed in
their server too).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14449
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
There's nothing special regarding the last channel,
as the smb2.session.bind2 test demonstrates.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14449
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This demonstrates that a session and it's open handles is destroyed
when the last explicitly bound channel gets disconnected.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14449
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
These demonstrate that the replay detection for pending opens
either doesn't exist (for the share_access=NONE => SHARING_VIOLATION
case) or return the wrong status code => ACCESS_DENIED instead of
FILE_NOT_AVAILABLE.
Windows clients transparently retry after FILE_NOT_AVAILABLE,
while they pass ACCESS_DENIED directly to the application.
I'll report that to dochelp@microsoft.com in order to
clarify the situation.
In the meantime I added tests with a '-windows' suffix,
which demostrate the current windows server behavior,
while the tests with a '-sane' suffix expect the behavior
that whould make windows clients happy.
For Samba I'll implement the '-sane' behavior that
detects all replays and returns FILE_NOT_AVAILABLE
if the original request is still pending.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14449
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
A DN string with lots of trailing space can cause ldb_dn_explode() to
put a zero byte in the wrong place in the heap.
When a DN string has a value represented with trailing spaces,
like this
"CN=foo ,DC=bar"
the whitespace is supposed to be ignored. We keep track of this in the
`t` pointer, which is NULL when we are not walking through trailing
spaces, and points to the first space when we are. We are walking with
the `p` pointer, writing the value to `d`, and keeping the length in
`l`.
"CN=foo ,DC= " ==> "foo "
^ ^ ^
t p d
--l---
The value is finished when we encounter a comma or the end of the
string. If `t` is not NULL at that point, we assume there are trailing
spaces and wind `d and `l` back by the correct amount. Then we switch
to expecting an attribute name (e.g. "CN"), until we get to an "=",
which puts us back into looking for a value.
Unfortunately, we forget to immediately tell `t` that we'd finished
the last value, we can end up like this:
"CN=foo ,DC= " ==> ""
^ ^ ^
t p d
l=0
where `p` is pointing to a new value that contains only spaces, while
`t` is still referring to the old value. `p` notices the value ends,
and we subtract `p - t` from `d`:
"CN=foo ,DC= " ==> ? ""
^ ^ ^
t p d
l ~= SIZE_MAX - 8
At that point `d` wants to terminate its string with a '\0', but
instead it terminates someone else's byte. This does not crash if the
number of trailing spaces is small, as `d` will point into a previous
value (a copy of "foo" in this example). Corrupting that value will
ultimately not matter, as we will soon try to allocate a buffer `l`
long, which will be greater than the available memory and the whole
operation will fail properly.
However, with more spaces, `d` will point into memory before the
beginning of the allocated buffer, with the exact offset depending on
the length of the earlier attributes and the number of spaces.
What about a longer DN with more attributes? For example,
"CN=foo ,DC= ,DC=example,DC=com" -- since `d` has moved out of
bounds, won't we continue to use it and write more DN values into
mystery memory? Fortunately not, because the aforementioned allocation
of `l` bytes must happen first, and `l` is now huge. The allocation
happens in a talloc_memdup(), which is by default restricted to
allocating 256MB.
So this allows a person who controls a string parsed by ldb_dn_explode
to corrupt heap memory by placing a single zero byte at a chosen
offset before the allocated buffer.
An LDAP bind request can send a string DN as a username. This DN is
necessarily parsed before the password is checked, so an attacker does
not need proper credentials. The attacker can easily cause a denial of
service and we cannot rule out more subtle attacks.
The immediate solution is to reset `t` to NULL when a comma is
encountered, indicating that we are no longer looking at trailing
whitespace.
Found with the help of Honggfuzz.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14595
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The old behaviour attempted to check for and remove files with duplicate
names, but did not do so due to a bug, and would have left undetermined
which files were given priority when duplicate filenames were present.
Now when hardlinks are present, only one instance of each file is
chosen, with files in the private directory having priority. If one
backup dir is nested inside another, the files contained in the nested
directory are only added once. Additionally, the BIND DNS database is
omitted from the backup.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14027
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz
This test verifies that when performing an offline backup of a domain
where one of the directories to be backed up is nested inside another,
the contained files are only included once in the backup.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14027
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz
This test verifies that when performing an offline backup of a domain
where the directories to be backed up contain hardlinks, only one
instance of each file is backed up, and that files in the private
directory take precedence.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14027
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Mar 18 20:02:50 UTC 2021 on sn-devel-184
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Mar 17 07:03:27 UTC 2021 on sn-devel-184
We no longer run any *python2* or *python3* specific tests, so
these knownfail lines are just clutter.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Jeremy Allison <jra@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14512
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Mar 17 01:56:37 UTC 2021 on sn-devel-184
The ACCESS_DENIED errors happened as we didn't expected to signing
algo is attached to the session key. So our client calculated the
wrong signature.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14512
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
When the session is not valid on the current connection it should not be
possible to start a reauth.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14512
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
If someone tries to operate on a session that is not yet valid on the
current connection and the current session setup fails, then we should
not shutdown the session.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14512
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The key is that we need to have the signing key in order to pass the
signing checks and give the correct session bind error status.
This should fix the MultipleChannel_Negative_SMB2002 testcase
of the Windows Protocol Test Suite (FileServer).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14512
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reported-by: Jones Syue <jonessyue@qnap.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
This allows us to test session binds with different users.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14512
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
These demonstrate that a failing bind does not destroy
the existing session and binding with a different user results
in ACCESS_DENIED.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14512
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
'smb2.session.bind_negative_smb202' is similar to the MultipleChannel_Negative_SMB2002 test
from the Windows Protocol Test Suite.
It demonstrates that the server needs to do lookup
in the global session table in order to get the signing
and error code of invalid session setups correct.
In order to work out the details I've added more similar tests.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14512
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The current_user_info is updated at the SMB level, but currently not at the RPC
level in the RPC impersonation function smbd_become_authenticated_pipe_user().
For RPC services running embedded this is not an issue as the SMB level
impersonation has already taken care of current_user_info, but for RPC services
running as external daemons, eg spoolssd, the omission of updating
current_user_info results in variable expansion of eg %U (username) to be
broken.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14668
MR: https://gitlab.com/samba-team/samba/-/merge_requests/1834
RN: %U variable expansion not working in spoolsd
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Björn Baumbach <bb@sernet.de>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Mar 12 00:54:01 UTC 2021 on sn-devel-184
If we don't anticipate a missing principal name,
samba-tool crashes. Also, principal names could
be in dispersed listelements.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Björn Baumbach <bb@sernet.de>
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Mar 8 20:57:50 UTC 2021 on sn-devel-184
If we don't anticipate a missing principal name,
the extension crashes. Also, principal names could
be in dispersed listelements.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Running samba-gpupdate on a client is causing an
error in gp_access_ext, due to it attempting to
access sam.ldb before detecting whether we are on
an ad-dc.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
This reproduces a problem that is triggered when
smbd_server_connection_terminate() is called recursively.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14533
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This actually fixes crashes due to stale pointers.
With multi-channel and with 2 (or more) connections,
we'll call smbXsrv_session_disconnect_xconn() when a connection
gets disconnected, but we'll leave smbXsrv_client and all other
connections in place.
However smbXsrv_session_disconnect_xconn_callback() left
a stale session->db_rec pointer in place, which means
a following smbXsrv_session_logoff() will call
dbwrap_record_delete(local_rec) on a stale pointer.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14532
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This reproduces a bug where two SMB2_LOGOFF messages kill the whole
client smbd when multi-channel is used, instead of just removing the
logical session.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14532
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This test should be independent of the protocol in order to be
independent of multi-channel support of the server.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14534
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Feb 24 22:01:08 UTC 2021 on sn-devel-184
There are tests in this environment that kill processes with SEGV
signals, which causes a backtrace that is entirely spurious from a
debugging point of view.
We can turn that off, saving processor time and moments of developer
confusion.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@suse.com>
Sometime you know a test is going to crash and produce a LOT of
backtrace, and you already know what it will look like. For those
times you can set
PLEASE_NO_GDB_BACKTRACE=1
and there will be no backtrace, which can save quite a bit of time and
thousands of lines of log file. (In particular, backtraces of Python
programs can take over a minute to complete).
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@suse.com>
Replace it with the VGP command for removing
sudoers entries from an xml file.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sun Feb 14 00:53:41 UTC 2021 on sn-devel-184
Replace it with the VGP command for adding
sudoers entries in an xml file.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Replace it with the VGP command for listing
sudoers entries in an xml file.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
The rsop should only list the policies from
that extension, not from all policies in the
same file.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Feb 11 18:28:09 UTC 2021 on sn-devel-184
Failing to remove the empty section causes tests
to fail, and is also just bad practice.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Ensure that empty sections are removed when
calling samba-tool gpo manage security set.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
We may have bugs in socket_wrapper and others, we don't want
to inject these bugs into the debugger.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
