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To maintain SMB Multichannel, windows client might periodically query with
FSCTL_QUERY_NETWORK_INTERFACE_INFO to get SMB server's network information,
in my case windows server 2022 would do this every 10 minutes (600 seconds).
Consider a scenario: the network information might have changed between
these queries, some become link down, new interface is link up, network
speed is changed, and etc. So far smbd might not aware of these changes and
still report out-of-date network information to windows client, until we
manually send a SIGHUP to smbd in order to trigger load_interfaces():
smbd_sig_hup_handler() > reload_services () > load_interfaces()
This might be a bit inconvenient because it is hard to decide when should
we manually send a SIGHUP to smbd for refreshing network information.
This patch adds load_interfaces() at fsctl_network_iface_info(), while smbd
received FSCTL_QUERY_NETWORK_INTERFACE_INFO would go through this and refresh
local_interfaces, then respond to client with up-to-date network information;
also refresh num_ifaces to make sure interfaces count is consistent.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15547
Signed-off-by: Jones Syue <jonessyue@qnap.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Björn Jacke <bjacke@samba.org>
Bug: https://bugzilla.samba.org/show_bug.cgi?id=15544
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): Tue Jan 2 20:37:01 UTC 2024 on atb-devel-224
Avoid an if-statement when just assigning the result of the
if-condition to a boolean.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
srv_put_dos_date2_ts() uses convert_timespec_to_time_t() on the passed
timespec, which for ts_nsec==0 returns just tv_sec.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
All but one uses of srv_put_dos_date2() converted from struct
timespec. Put that into a new routine.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
If a client connects to a non-public address first followed by a connect
to public address with the same client_guid and a connection to
the non-public address gets disconnected first, we hit by a use-after-free
talloc_get_type_abort() called from release_ip() as
"xconn" is already gone, taking smbd_release_ip_state with it.
We need to decide between calling ctdbd_unregister_ips() by default, as
it means the tcp connection is really gone and ctdb needs to remove the
'tickle' information. But when a connection was passed to a different
smbd process, we need to use ctdbd_passed_ips() as the tcp connection is
still alive and the 'tickle' information should not be removed within
ctdb.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15523
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Martin Schwenke <martin@meltin.net>
We also prodive a samba_copyright_string() helper similar to
samba_version_string().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15377
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Björn Jacke <bjacke@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Dec 15 10:44:42 UTC 2023 on atb-devel-224
To set a mode, send a one-element ACL.
Pair-Programmed-With: Ralph Boehme <slow@samba.org>
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Nov 27 19:31:01 UTC 2023 on atb-devel-224
This basically reverts commit b3cae8dcf1
with a few important differences:
* SMB3 UNIX extensions are always built, but disabled by default at runtime.
* They are globally enabled in the fileserver test environment.
* It's now a per-share option, so admins can selectively disable them
on a per-share basis. This allows clients to detect early that a share
doesn't support user mount requested POSIX and fail appropiately, passing
the failure to the requesting application (mount command).
Signed-off-by: Ralph Boehme <slow@samba.org>
This check is only needed for SMB2, so check for that, and in the SMB2 codepath
we'll always have a valid fsp, so we can drop that check.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We need the fsp down in fsinfo_unix_valid_level(), pass it down.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We need the fsp down in fsinfo_unix_valid_level(), start passing it down.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Since e0814dc508 the passed in attributes get
replaced by the mode in create_file_default().
As FILE_FLAG_NO_BUFFERING is never checked when doing the final IO, it doesn't
really matter.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is real.
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): Tue Nov 21 18:33:51 UTC 2023 on atb-devel-224
VFS modules like streams_xattr use the function fsp_is_alternate_stream() on the
fsp to determine in an fsp is a stream, eg in streams_xattr_close(). If
fspo->base_fsp is arlready set to NULL, this won't work anymore.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15521
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 Nov 16 18:31:17 UTC 2023 on atb-devel-224
fdos_mode() has special code to deal with symlinks, so we don't have
to replicate that logic here.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Wed Nov 15 06:10:38 UTC 2023 on atb-devel-224
This uses the much simpler openat_pathef_fsp_lcomp, avoiding
non_widelink_open where we don't need it. The only case where we still
have to call openat_pathref_fsp() in its full capacity is to find out
whether a symlink we found is dangling or not.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Both mode_fn's are now the same. Fold them into smbd_dirptr_get_entry()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Do the smb1-specific code directly in smb1-code. Don't tunnel it
through generic smb1/smb2 code.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Nov 14 00:10:19 UTC 2023 on atb-devel-224
It confused me that a function that supposedly just retrieves dos
attributes also updates something.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Given two opens on a file:
1. Windows open with delete-on-close
2. POSIX open with delete-on-close set
When handle 1 is closed processing in has_other_nonposix_opens_fn() will not
delete the file as (fsp->posix_flags & FSP_POSIX_FLAGS_OPEN) is false, so
has_other_nonposix_opens() will return true which is wrong.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15517
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): Mon Nov 13 19:34:29 UTC 2023 on atb-devel-224
This is more lines of code, but it's still a simplification. With this
patch we don't call the full openat_pathref_fsp() anymore when looking
up the last component in filename_convert_dirfsp(), instead we do the
direct SMB_VFS_OPENAT(). We don't need the whole complexity of
non_widelink_open() for this case, we do know that we have a real
non-cwd dirfsp.
The other big change that is not obvious just from looking at the
patch: This removes the special case for looking up posix
symlinks. Before this patch, filename_convert_dirfsp() returned a
proper smb_filename but without an attached fsp when a smb1 posix
client hits a symlink. This caused all sorts of special case code
everywhere. For example smbd_do_qfilepathinfo() needs to cover both
cases just for the smb1 posix symlink case. This special-case handling
can go now. We can do the path lookup in the smb1-only qpathinfo code
and call into the common code with a proper fsp.
When hitting a symlink and with O_PATH available, we'll get the
symlink opened with an O_PATH fd. Without O_PATH we obviously can't do
that, there we get fd=-1 and an indication that we don't have the
procfd fallback around.
Why all this?
I want to present FIFOs (and eventually symlinks) as reparse points as
the very next step. Without this patch, there is no real unified way
to get the file attributes from disk. Now we can use the proper logic
of fdos_mode() everywhere and not rely on special cases for fsp==NULL.
This patch also changes some error codes for smb1 posix extensions. I
chose to just change the test instead of going after each and every
change. As long as we do get an error, I'm willing to accept that we
slightly change error path behaviour for this deprecated code.
And, I tried to split this up into smaller patches but I failed.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Even with "follow symlinks = yes" we don't want to delete the target
when being given a symlink name.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
