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Commit Graph

12311 Commits

Author SHA1 Message Date
Stefan Metzmacher
c1c326ebcc smbXsrv_session: store session_global->client_guid
This is very useful for debugging...

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2024-01-09 10:21:34 +00:00
Stefan Metzmacher
10b084f824 s3:smbd multichannel: improve smbXsrv_connection_dbg()
client_guid as well as local and remote address help a lot
for debugging...

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2024-01-09 10:21:34 +00:00
Stefan Metzmacher
475784d63e s3:smbd multichannel: let a cross-node session binding NT_STATUS_REQUEST_NOT_ACCEPTED
This is better than NT_STATUS_USER_SESSION_DELETED, as it means the
client can keep it's session alive. Otherwise a windows client believes
the whole session is gone and all other channels are invalid.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2024-01-09 10:21:34 +00:00
Stefan Metzmacher
8a3707e3ed s3:smbd multichannel: always allow multichannel to the ip of the queried connection
We can announce the ip of the current connection even if it's
a moveable cluster address... as the client is already connected to it.

This change means in a typical ctdb cluster, where we only have public
addresses, the client can at least have more than one multichannel'ed
connection to the public ip.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2024-01-09 10:21:34 +00:00
Ralph Boehme
f14a706569 smbd: move access override for previous versions to the SMB layer
Doing the previous version access checks and semantics at the SMB
layer means we can simplify the shadow_copy2 and remove the kludge.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13688

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Mon Jan  8 16:58:26 UTC 2024 on atb-devel-224
2024-01-08 16:58:26 +00:00
Ralph Boehme
fd4e41144a smbd: check for previous versions in check_any_access_fsp()
Now that check_any_access_fsp() is broadly used consistently to
restrict access for all modifying operations, we can add a check for
previous versions to check_any_access_fsp() and it gets enforced
consistently.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13688

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-01-08 15:53:36 +00:00
Ralph Boehme
02ed99343d smbd: use check_any_access_fsp() for all access checks
Replaces the direct access to fsp->access_mask with a call to
check_any_access_fsp() which allows doing additional checks if needed.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13688

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-01-08 15:53:36 +00:00
Ralph Boehme
995a31c8d4 smbd: replace CHECK_WRITE() macro with calls to check_any_access_fsp()
The additional check if fd underlying fd is valid and not -1 should not be done
at this place. I actually would prefer an write to fail with EBADF if this
happens, as it's likely easier to debug why this happened. These days we should
always have a valid fd.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13688

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-01-08 15:53:36 +00:00
Ralph Boehme
ee3035218d smbd: set fsp->fsp_flags.can_write to false for access to previous-versions
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13688

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-01-08 15:53:36 +00:00
Ralph Boehme
a0ae45be77 smbd: return correct error when trying to create a hardlink to a VSS file
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13688

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-01-08 15:53:36 +00:00
Ralph Boehme
bf497819e6 smbd: fix check_any_access_fsp() for non-fsa fsps
smbd_check_access_rights_fsp() requires *all* rights in access_mask to
be granted by the underlying ACL, but the semantics of this function
is supposed to grant access if any one of the rights in
access_requested is allowed.

Fix this by looping over the requested access mask. If
smbd_check_access_rights_fsp() returns sucess, mask will be non-null
and when assigned to access_granted, the subsequent check will pass,
fail otherwise.

I'm not doing an early exit on purpose because a subsequent commit
adds additional security checks that are done in the subsequent code
path common for fsa and non-fsa fsps.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13688

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-01-08 15:53:36 +00:00
Ralph Boehme
96b577c380 smbd: rename check_access_fsp() to check_any_access_fsp()
The semantics of the access check in check_access_fsp() itself is to
allow access if *at least* one or more rights of the rights in
access_mask are allowed. The name check_any_access_fsp() better
reflects this.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13688

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-01-08 15:53:36 +00:00
Ralph Boehme
276c5bd851 smbd: return the correct error in can_rename()
This is what Windows returns for this case.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13688

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-01-08 15:53:36 +00:00
Jones Syue
318fd95d5e s3:smbd multichannel: always refresh the network information
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>
2024-01-04 11:39:36 +00:00
Volker Lendecke
2cfbf43f70 smbd: Fix traversing snapshot dirs that vanished in current fileset
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
2024-01-02 20:37:01 +00:00
Volker Lendecke
6d3146f94b smbd: Modernize a few DEBUG statements
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>

Autobuild-User(master): Günther Deschner <gd@samba.org>
Autobuild-Date(master): Tue Dec 19 17:07:04 UTC 2023 on atb-devel-224
2023-12-19 17:07:04 +00:00
Volker Lendecke
9beb22a28e smbd: Remove an unused function prototype
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2023-12-19 16:05:36 +00:00
Volker Lendecke
a22aeed277 smbd: Slightly simplify smbd_smb2_query_directory_send()
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>
2023-12-19 16:05:36 +00:00
Volker Lendecke
c00bec4ae8 smbd: Give source3/smbd/dir.c its own header file
The prototypes were spread across 3 different files.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2023-12-19 16:05:36 +00:00
Volker Lendecke
abf323d03e smbd: Use srv_put_dos_date2_ts() in reply_printqueue()
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>
2023-12-19 16:05:36 +00:00
Volker Lendecke
d5a0d6f7e9 smbd: Introduce srv_put_dos_date2_ts()
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>
2023-12-19 16:05:36 +00:00
Volker Lendecke
201d113d1e smbd: Remove "conn" from struct dptr_struct
We have it available behind "dir_hnd".

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
2023-12-19 16:05:36 +00:00
Volker Lendecke
ddf47e7fe3 smbd: Remove callback for release_ip when "state" is free'ed
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>
2023-12-15 11:06:34 +00:00
Stefan Metzmacher
d23d6145bf VERSION: move COPYRIGHT_STARTUP_MESSAGE as SAMBA_COPYRIGHT_STRING into version.h
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
2023-12-15 10:44:42 +00:00
Jeremy Allison
8f42b8431e s3: smbd: Allow fchmod from the NFS-style mode ACL in set_nt_acl() for a SMB2 POSIX handle.
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
2023-11-27 19:31:01 +00:00
Ralph Boehme
631e6aa0d0 smbd: bring back "smb3 unix extensions" option
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>
2023-11-27 18:31:35 +00:00
Ralph Boehme
b124c2e182 smbd: factor out smb2_negotiate_context_process_posix()
No change in behaviour.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-27 18:31:35 +00:00
Ralph Boehme
6e300ef731 smbd: tweak POSIX check in smbd_do_qfilepathinfo()
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>
2023-11-27 18:31:35 +00:00
Ralph Boehme
55d98b29eb smbd: check is POSIX is enabled on the fsp in fsinfo_unix_valid_level()
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-27 18:31:35 +00:00
Ralph Boehme
01022d036f smbd: pass fsp to fsinfo_unix_valid_level()
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>
2023-11-27 18:31:35 +00:00
Ralph Boehme
bca6f0298f smbd: pass fsp to smbd_do_qfsinfo()
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>
2023-11-27 18:31:35 +00:00
Ralph Boehme
3f73bb591c smbd: leave comment on broken SMB1 POSIX open handling of SMB_O_DIRECT
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>
2023-11-27 18:31:35 +00:00
Björn Jacke
5e925f9755 dosmode: prefer capabilities over become_root
Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-11-27 01:12:40 +00:00
Volker Lendecke
f955d9aa49 smbd: Fix Coverity ID 1499372 Uninitialized scalar variable
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
2023-11-21 18:33:51 +00:00
Volker Lendecke
2651a7b03d smbd: Fix/remove a comment that became irrelevant
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-21 17:34:36 +00:00
Volker Lendecke
7c5380c958 smbd: Fix a comment
See 84cf205ff4

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-21 17:34:36 +00:00
Volker Lendecke
af69ea73a4 smbd: Convert a void* into the real DIR*
Not sure why this was a void*

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-21 17:34:36 +00:00
Andreas Schneider
9621a3d7a6 Use python.h from libreplace
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15513

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-11-20 15:37:33 +00:00
Björn Jacke
159cfde446 logging: use DBG_STARTUP_NOTICE for startup message
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15377

Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-11-20 03:52:33 +00:00
Björn Jacke
1edf9ecaf5 posix_acls.c: prefer capabilities over become_root
Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>

Autobuild-User(master): Björn Jacke <bjacke@samba.org>
Autobuild-Date(master): Thu Nov 16 22:39:05 UTC 2023 on atb-devel-224
2023-11-16 22:39:05 +00:00
Björn Jacke
b250f25fe4 open.c: prefer capabilities over become_root
Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
2023-11-16 21:38:38 +00:00
Björn Jacke
c1e2fbb1b9 dosmode.c: prefer use of capabilities at two places over become_root
Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
2023-11-16 21:38:37 +00:00
Ralph Boehme
4481a67c1b smbd: fix close order of base_fsp and stream_fsp in smb_fname_fsp_destructor()
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
2023-11-16 18:31:17 +00:00
Volker Lendecke
4e585186f2 smbd: Get the symlink mode for posix through fdos_mode()
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
2023-11-15 06:10:38 +00:00
Volker Lendecke
aaa73cce1d smbd: Centralize fdos_mode() in smbd_dirptr_get_entry()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-15 05:10:35 +00:00
Volker Lendecke
80c98acbf0 smbd: Centralize wiping the ".." stat info
Make sure this also happens for symlinks etc.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-15 05:10:35 +00:00
Volker Lendecke
c96010a2a9 smbd: Simplify smbd_dirptr_get_entry()
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>
2023-11-15 05:10:35 +00:00
Volker Lendecke
6b0cfcdbc3 smbd: Remove a pointless NULL check
We've dereferenced smb_fname before, and talloc_move() never fails.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-15 05:10:35 +00:00
Volker Lendecke
5991f4e66b smbd: Slightly simplify smbd_dirptr_get_entry()
Check for dirptr being toplevel just once.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-15 05:10:35 +00:00
Volker Lendecke
901c7cc6aa smbd: Move mask_match_search() to smb1_reply.c
Only called there.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2023-11-15 05:10:35 +00:00