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This used to make a deep copy of either
cli->smb2.tcon or cli->smb1.tcon, but this leaves
the original tcon pointer in place which will then get
TALLOC_FREE()'d when the new tree connection is made on
this cli_state.
As there may be pipes open on the old tree connection with
talloc'ed state allocated using the original tcon pointer as a
talloc parent we can't deep copy and then free this pointer
as that will fire the destructors on the pipe memory and
mark them as not connected.
This call is used to temporarily swap out a tcon pointer
(whilst keeping existing pipes open) to allow a new tcon
on the same cli_state and all users correctly call
cli_state_restore_tcon() once they are finished with
the new tree connection.
Just return the existing pointer and set the old value to NULL.
We know we MUST be calling cli_state_restore_tcon() below
to restore the original tcon tree connection pointer before
closing the session.
Remove the knownfail.d entry.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13992
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Feb 2 21:05:25 UTC 2021 on sn-devel-184
This can be useful outside of source3/libsmb/namequery.c as Samba
moves towards samba_sockaddr.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Samuel Cabrero <scabrero@samba.org>
commit 42be033b0b0c02413a74f984c8622b5baed2689a removed the last
reference.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The operation is a bit different from others,
as results are returned in an async fashion.
It returns a request handle.
notify_req = conn.notify(fnum=fnum,
buffer_size=0xffff,
completion_filter=libsmb.FILE_NOTIFY_CHANGE_ALL,
recursive=True)
# ... do other operations on conn.*() ...
changes = notify_req.get_changes(wait=False)
# changes is likely to be None if no result arrived yet
# ... do other operations on conn.*() ...
changes = notify_req.get_changes(wait=True)
# changes is a list of change dictionaries
# each containing "name" (a string) and
# "action" (an integer, e.g. libsmb.NOTIFY_ACTION_REMOVED)
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
In tests it's sometimes to have a no-op in order to check the
transport is still alive.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We want to raise an exception for everything that's not NT_STATUS_OK.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14105
Pair-programmed-with: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Björn Baumbach <bb@sernet.de>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Otherwise the connect fails if the configured client min protocol is
higher than NT1.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14105
Signed-off-by: Björn Baumbach <bb@sernet.de>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We have "goto done;" at the end of every if-branch, we don't need
else.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This makes sure we do not dereference a NULL poineter.
Found by covscan.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Thu Nov 26 11:07:09 UTC 2020 on sn-devel-184
No non-async callees are used anymore
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): Thu Nov 19 04:12:11 UTC 2020 on sn-devel-184
This prepares cli_list_recv() for the lowerlevel NT_STATUS_RETRY that
will come in once cli_list_send() uses cli_smb2_list_send() as well.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This converts the higher-level cli_list_recv() to the new
cli_smb2_list_recv() calling convention to just issue one entry per
recv() call in preparation of using the async cli_smb2_list_send() in
cli_list_send().
For SMB1 this will be a performance degradation, as we have to make
copies out of the arrays that cli_trans_recv() returns, but soon this
will become a performance improvement for the SMB2 directory
listing. And as hopefully most deployments these days are SMB2, I
think we can live with the SMB1 client directory listing
degradation. Also, we can also convert the lowerlevel SMB1 directory
listing routines in case someone actually sees problems from this
here.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Return directory entries as soon as possible via
cli_smb2_list_recv(). This returns just one entry per call to
cli_smb2_list_recv() right out of the buffer without assembling
potentially thousands of entries in a big array. You must call
cli_smb2_recv() until an error (except NT_STATUS_RETRY) happens. This
reduces our latency for smbclient's "dir" command significantly for
large directories. In the future I hope I can do the same thing also for
SMBC_readdir_ctx() to improve all users of our published libsmbclient.
Initial attempts of this routine issued fresh smb2_query_directory
requests asynchronously while the receivers of the entries did their
processing, for example showing them in smbclient's "dir"
command. However, this breaks because for example the "showacls"
smbclient option needs to do synchronous smb requests to do their job,
which we can't do while async requests are pending. Thus I came up
with a semi-synchronous approach to issue additional
smb2_query_directory requests from within cli_smb2_list_recv() and
return NT_STATUS_RETRY. This means that we will call back our caller
via the tevent_req_notify function when a fresh entry is available.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
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): Mon Nov 16 21:18:16 UTC 2020 on sn-devel-184
