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So far only cli_pull could be called directly without looking at the
protocol. We did not have a simple read that did the right thing
depending on the protocol
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13565
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Mon Aug 27 20:23:55 CEST 2018 on sn-devel-144
This effectively reverts commit 17eba16b. It looks like these flags have
been introduced as part of the onefs support which has been removed
again. As there is no other use for the flags, remove them.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Christof Schmitt <cs@samba.org>
Autobuild-Date(master): Sat Aug 25 03:23:05 CEST 2018 on sn-devel-144
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
The original fix for bug 13441 was missing a check that verifies that
fruit_ftruncate() is actually called on a stream.
Follow-up to
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13441
Pair-Programmed-With: Volker Lendecke <vl@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Aug 23 15:28:48 CEST 2018 on sn-devel-144
Needed for vfs_glusterfs, as Gluster requires "." not '\0'.
Based on a fix from Anoop C S <anoopcs@redhat.com>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13585
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Aug 22 21:50:41 CEST 2018 on sn-devel-144
A few lines less and quite some bytes less .text
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): Wed Aug 22 03:59:51 CEST 2018 on sn-devel-144
Yes, this creates a leak of "data", but the other error exits in this
function are the same.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This was only implemented by onefs in this way. If we get around to use
for example fanotify or something similar, we can either re-add them or
do it in a different way. For now, simplify the code.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed Aug 22 00:57:31 CEST 2018 on sn-devel-144
Fix a panic if fruit_access_check detects a locking conflict.
do_lock() returns a valid br_lck even in case of a locking conflict.
Not free'ing it leads to a invalid lock order panic later, because
"br_lck" corresponds to a dbwrap lock on brlock.tdb.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13584
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Point out in the API that "backend" talloc_moves into the watched
database.
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): Fri Aug 17 21:29:15 CEST 2018 on sn-devel-144
I've stumbled over a case where VFS_FTRUNCATE wasn't called due to an
unchanged size. Make that easier to detect. Also, get rid of an ancient
cast to (double).
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Fix a confusing API: Many places TALLOC_FREE the path where it's not
clear you have to do it.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Aug 17 14:28:51 CEST 2018 on sn-devel-144
Fix a confusing API: Many places TALLOC_FREE the path where it's not
clear you have to do it.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Fix a confusing API: Many places TALLOC_FREE the path where it's not
clear you have to do it.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
The fixes for #13195 were incomplete and did not cover upgrades
properly. It's all gone in master with the new code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13195
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Fri Aug 17 10:34:53 CEST 2018 on sn-devel-144
CLEAR_IF_FIRST doesn't really work in the cluster. This needs to be
applied to all tests, but lock6 is what I care about right now.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13195
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Do string_term_tdb_data just once, this is a leftover from a sweeping
change from "char *" to TDB_DATA as g_lock key.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13195
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
It seems that there might be pre-existing endianness issues which would be fixed by the ndr_push.
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Introduced by dbdbd4875e
CID 1438395
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
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): Tue Aug 14 22:02:06 CEST 2018 on sn-devel-144
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13453
CVE-2018-10858: Insufficient input validation on client directory
listing in libsmbclient.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13453
CVE-2018-10858: Insufficient input validation on client directory
listing in libsmbclient.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Right now, this test will succeed.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13360
CVE-2018-1139: Weak authentication protocol allowed.
Guenther
Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
While chasing a bug in g_lock (not in master) I saw some opportunity to
simplify g_lock_trylock a bit. This is array handling, and array
handling is just extremely error-prone. This *might* be a little less
efficient or large numbers of READ locks, but this remains to be
seen. For now, simplify the code.
First, we make two passes now: One to remove ourselves, and the other
one to search for conflicts. Mixing up both made it pretty hard for me
to follow the code.
Second, I've removed the _mylock and mylock pointer/struct logic and
replaced it with the "mylock.pid.pid != 0 ? &mylock : NULL" when calling
g_lock_store. To me, this focuses the logic whether to add ourselves in
one place instead of spreading it around in the whole routine.
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): Tue Aug 14 11:42:10 CEST 2018 on sn-devel-144
If we try to G_LOCK_READ while a G_LOCK_WRITE is active, we do the
serverid_exists call twice. Avoid that.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Found by covscan.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
Pair-Programmed-With: Justin Stephenson <jstephen@redhat.com>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Justin Stephenson <jstephen@redhat.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Aug 11 04:43:15 CEST 2018 on sn-devel-144
Found by covsan.
error[invalidScanfFormatWidth]: Width 128 given in format string (no. 2)
is larger than destination buffer 'sid_string[128]', use %127s to
prevent overflowing it.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
Pair-Programmed-With: Justin Stephenson <jstephen@redhat.com>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Justin Stephenson <jstephen@redhat.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Found by covscan.
A candidate to use tallac ...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13567
Pair-Programmed-With: Justin Stephenson <jstephen@redhat.com>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Justin Stephenson <jstephen@redhat.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13204
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): Fri Aug 10 21:08:14 CEST 2018 on sn-devel-144
The current implementation of `rmdir` hopes to get the directory deleted
on closing last open handle when FILE_DELETE_ON_CLOSE is set on it. But
for non-empty directories Windows doesn't error out during an open call.
Following that we internally refuse to set initial delete_on_close while
opening a non-empty directory. This prevents us from trying to delete
the directory when last open handle is closed.
Instead of relying on FILE_DELETE_ON_CLOSE during an open we explicitly
set delete_on_close token on directory handle once it is available. This
ensures that NT_STATUS_DIRECTORY_NOT_EMPTY is returned for `rmdir` on
non-empty directories while closing open directory handle.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13204
Signed-off-by: Anoop C S <anoopcs@redhat.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13563
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Aug 10 02:43:33 CEST 2018 on sn-devel-144
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): Wed Aug 8 23:10:22 CEST 2018 on sn-devel-144
ndr_size_dom_sid returns a size_t, so that can't be <0. Also, the only
case that ndr_size_dom_sid returns 0 is a NULL sid
pointer. ndr_size_dom_sid can reasonably be assumed to not overflow, the
number of sub-auths is a uint8. That times 4 plus 8 always fits into a
size_t.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The eventlogadm binary needs write access to the registry which, by
default, is only possible as root.
https://bugzilla.samba.org/show_bug.cgi?id=13561
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): Tue Aug 7 01:49:34 CEST 2018 on sn-devel-144
Usually you need to be root on a linux server to modify quotas. Even
with a linux server joined to a windows AD you could always log in as
local root with smbcquotas. However in recent builds this has changed.
This patch fixes this
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13553
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Noel Power <npower@samba.org>
Autobuild-Date(master): Tue Jul 31 19:45:59 CEST 2018 on sn-devel-144
Currently it appears you need to be root to set quotas, for test purposes
this requirement needs to be relaxed.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13553
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
calling SMB_VFS_STAT on the quota fake file fails and caused
FS_INFO/FileFsControlInfo request to error out early, in turn stopped a
Win8.1 client from proceeding with quota queries.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13553
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Calling parse_user_quota_list with a NULL buffer can cause a panic, while
this shouldn't happen, I managed to trigger this with an early implementation
of SMB2 quota support in smbd which didn't pass back NT_STATUS_NO_MORE_ENTRIES
when handling a SMB2_0_INFO_QUOTA GETINFO message.
OTHOH the Windows client handled the same situation gracefully.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13553
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
'return req' should do the same as 'return true' for a bool function,
it's implicitly expanded as 'return (req!=NULL)?true:false.
There's no point in that as 'req' is always a valid pointer.
This was most likely just a copy and paste bug.
So we make this explicit now and avoid that Coverity reports this:
CID 1438158: Null pointer dereferences (REVERSE_INULL)
Null-checking "req" suggests that it may be null, but it has already
been dereferenced on all paths leading to the check.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue Jul 31 14:20:49 CEST 2018 on sn-devel-144
lock_ref_count will always hold the old value prior to change. Thus it
would mean that if lock_ref_count is 0 the new value is already -1 which
is not expected here. Therefore it is better to make sure that it is
always greater than 0 rather than >= 0.
Signed-off-by: Anoop C S <anoopcs@redhat.com>
Reviewed-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 Jul 31 04:23:47 CEST 2018 on sn-devel-144
Add the ability to leave the domain with --keep-account argument to avoid
removal of the host machine account.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13498
Signed-off-by: Justin Stephenson <jstephen@redhat.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
This runs the smbtorture3 SMB2-BASIC and smb2.compound_find tests against shares
with "smbd:async dosmode" enabled.
On the vfs_aio_pthread_async_dosmode_force_sync* shares we
force a sync threadpool which ensures we test behaviour on systems that
don't support unshare(CLONE_FS) and also don't support
per-thread-credentials. This simulates the code path of non linux
systems. And makes sure that we don't regress there.
We also test with xattr_tdb and without.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Fri Jul 27 16:04:02 CEST 2018 on sn-devel-144
Finally: use the new dos_mode_at_send() in the directory enumeration
loop. This means that fetching the DOS attributes for directory entries
is done asynchronously with regard to the enumeration loop.
As the DOS attribute is typically read from an extended attribute in the
filesytem, this avoids sequentially blocking on IO. If the IO subsystem
is slow servicing these request, enabling async processing can result in
performance improvements.
A parametric option
smbd:async dosmode = true | false (default: false)
can be used to enable the new async processing.
Simulating slow IO with usleep(5000) in the synchronous and asynchronous
versions of SMB_VFS_GET_DOS_ATTRIBUTES(), the results of enumerating a
directory with 10,000 files are:
smbd:async dosmode = no:
$ time bin/smbclient -U slow%x //localhost/test -c "ls dir\*" > /dev/null
real 0m59.597s
user 0m0.024s
sys 0m0.012s
smbd:async dosmode = yes:
$ time bin/smbclient -U slow%x //localhost/test -c "ls dir\*" > /dev/null
real 0m0.698s
user 0m0.038s
sys 0m0.025s
Performance gains in real world workloads depends on whether the actual
IO requests can be merged and parallelized by the kernel. Without such
wins at the IO layer, the async processing may even be slower then the
sync processing due to the additional overhead.
The following parameters can be used to adapt async processing behaviour
for specific workloads and systems:
aio max threads = X (default: 100)
smbd:max async dosmode = Y (default: "aio max threads" * 2)
By default we have at most twice the number of async requests in flight
as threads provided by the underlying threadpool. This ensures a worker
thread that finishes a job can directly pick up a new one without going
to sleep.
It may be advisable to reduce the number of threads to avoid scheduling
overhead while also increasing "smbd:max async dosmode".
Note that we disable async processing for certain VFS modules in the VFS
connect function to avoid the overhead of triggering the sync fallback
in dos_mode_at_send(). This is done for VFS modules that implement the
sync SMB_VFS_GET_DOS_ATTRIBUTES(), but not the async version (gpfs), and
for VFS modules that don't share a real filesystem where fchdir() can be
used (ceph, gluster). It is disabled for catia, because we realized that
the catia name translation macros used on
fsps (CATIA_FETCH_FSP_[PRE|POST]_NEXT) have a bug (#13547).
We use threadpool = smb_vfs_ev_glue_tp_chdir_safe() and then
pthreadpool_tevent_max_threads(threadpool) to get the number of maximum
worker threads which matches the pool used by the low level
SMB_VFS_GETXATTRAT_[SEND|RECV] implementation in vfs_default.
This is a terrible abstraction leak that should be removed in the future
by maybe making it possible to ask a VFS function which threadpool it
uses, internally suporting chaining so VFS function FOO that internally
uses BAR can forward the question to BAR.
On a hyphotetical system that had a getxattrat(dirfd, path, ...)
syscall and at the same time doesn't support per-thread current working
directories (eg FreeBSD doesn't have the latter) but has support for
per-thread-credentials, pthreadpool_tevent_max_threads() on the
tp_chdir_safe threadpool returns 1.
So when hooking the hyphotetical getxattrat() into the async
SMB_VFS_GETXATTRAT_[SEND|RECV] implementation in an VFS module, the
implementation could use the tp_path_safe threadpool, but the SMB2
layer would use the wrong threadpool in the call to
pthreadpool_tevent_max_threads(), resulting in no parallelism.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This paves the way for adding async functions into the enumeration loop.
Best viewed with: git show -w
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
The next commit will add code that must be run if status is NT_STATUS_OK
or STATUS_MORE_ENTRIES.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This finally uses "get_dosmode" as passed in from the SMB2 layer, but
all callers still pass true, so no change in behaviour.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
We apply some post processing to the dosmode returned from the VFS
function. Move this to a seperate function which will be reused in the
next commit in the async dos_mode_send/recv post processing.
Best viewed with: git show --histogram
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
In preperation of adding an async version of get_ea_dos_attribute() that
will then call parse_dos_attribute_blob() too.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
smbstatus was the only user, and this could be solved by adapting
share_entry_forall.
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): Fri Jul 27 01:42:31 CEST 2018 on sn-devel-144
Quite a bit of the contents have been passed explicitly anyway.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
exit_server_common() can be called also in smbd processes without a
smbXsrv_client structure, e.g. the parent or some background tasks.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Thu Jul 26 01:29:38 CEST 2018 on sn-devel-144
This provides helper functions, which can be used by other modules,
if they don't implement a specific function.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Or the root glue in case we're already root.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
This will be used to in order to pass down the
impersonation magic from the SMB layer through
the SMB_VFS layer.
This includes the following options:
smbd:force sync user path safe threadpool
smbd:force sync user chdir safe threadpool
smbd:force sync root path safe threadpool
smbd:force sync root chdir safe threadpool
They can be used in order to test the non linux code
path on linux, once we get code that makes full use
of the new infrastructure.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
This adds VFS helper functions and that work on a struct smb_vfs_ev_glue
object which bundles two event contexts and a few threadpools.
This will be used to streamline the use of impersonating wrappers
in the SMB_VFS.
Notice the verbose comments in source3/smbd/vfs.c.
This will allow us to introduce path based async operations
to the SMB_VFS layer.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
This just simulates a threadpool, but executes the
job functions inline (blocking) in the main thread.
This will be used to work arround some OS limitations,
e.g. if per thread credentials or per thread working directory
are not supported.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This should in future not be used directly, we'll provide
wrapper pools, which will provide impersonation for
path based async calls.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
For multi channel connections we should increment the disconnect count
also if we're not closing the last channel.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This means the pending requests are destroyed before tevent_context
impersonation wrapper are destroyed.
Otherwise, with a pending struct tevent_req that is a child of
client->xconn like this in exit_server_common():
conn[ipv4:127.0.0.11:40745] reason[NT_STATUS_CONNECTION_RESET] at ../source3/smbd/smb2_server.c:4015
full talloc report on 'struct smbXsrv_connection' (total 6085 bytes in 43 blocks)
struct smbd_smb2_request contains 648 bytes in 1 blocks (ref 0) 0x55ed41634740
struct smbd_smb2_request contains 3438 bytes in 32 blocks (ref 0) 0x55ed416331e0
struct tevent_req contains 1824 bytes in 20 blocks (ref 0) 0x55ed41635860
struct smb_filename contains 206 bytes in 2 blocks (ref 0) 0x55ed41635560
lease_v2_complex2.dat contains 22 bytes in 1 blocks (ref 0) 0x55ed4161b950
struct smbd_smb2_create_state contains 1386 bytes in 16 blocks (ref 0) 0x55ed41635a10
struct deferred_open_record contains 804 bytes in 12 blocks (ref 0) 0x55ed41633090
struct defer_open_state contains 764 bytes in 11 blocks (ref 0) 0x55ed41634f10
struct tevent_req contains 748 bytes in 10 blocks (ref 0) 0x55ed41636390
struct tevent_timer contains 96 bytes in 1 blocks (ref 0) 0x55ed41636ad0
struct dbwrap_watched_watch_state contains 420 bytes in 7 blocks (ref 0) 0x55ed41636540
struct tevent_req contains 296 bytes in 5 blocks (ref 0) 0x55ed41636700
struct messaging_filtered_read_state contains 64 bytes in 3 blocks (ref 0) 0x55ed416368b0
struct messaging_dgm_fde contains 8 bytes in 2 blocks (ref 0) 0x55ed41636950
reference to: struct messaging_dgm_fde_ev
we crash when freeing the xconn as the the tevent_req child has a
cleanup function that tries to access a (wrapped) tevent context that
was already destroyed via smb1srv_tcon_disconnect_all() for SMB1 or
smbXsrv_session_logoff_all() for SMB2 a few lines above.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Wed Jul 25 03:23:44 CEST 2018 on sn-devel-144
If there's no record in the xattr.tdb, dbwrap_fetch() will return
NT_STATUS_NOT_FOUND. That should not result in an error in callers of
xattr_tdb_load_attrs().
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Many callers use "-1" as the "len" argument. That's what ssize_t is for.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Calling set_thread_credentials() with the same values,
skips syscalls the 2nd time.
We only do this if '__thread' is supported to provide
thread local storage.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue Jul 24 20:35:17 CEST 2018 on sn-devel-144
The define reflects the results of a feature test, not a configure
option.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Note we still need some kind of runtime detection as
it can fail in some constraint container setups, which
reject the whole unshare() syscall instead of just the
once used for container features.
In case unshare(CLONE_FS) works, we can have a per thread
current working directory and use [f]chdir() safely in
worker threads.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
For SMB2 the socket is set non-blocking. Ensure sendfile()
calls complete if they return EAGAIN by saving the socket state,
setting it blocking, doing the sendfile until completion and then
restoring the socket state.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13537
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Fri Jul 20 15:14:24 CEST 2018 on sn-devel-144
For SMB2 the socket is set non-blocking. Ensure sendfile()
calls complete if they return EAGAIN by saving the socket state,
setting it blocking, doing the sendfile until completion and then
restoring the socket state.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13537
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
For SMB2 the socket is set non-blocking. Ensure sendfile()
calls complete if they return EAGAIN by saving the socket state,
setting it blocking, doing the sendfile until completion and then
restoring the socket state.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13537
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
For SMB2 the socket is set non-blocking. Ensure sendfile()
calls complete if they return EAGAIN by saving the socket state,
setting it blocking, doing the sendfile until completion and then
restoring the socket state.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13537
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
For SMB2 the socket is set non-blocking. Ensure sendfile()
calls complete if they return EAGAIN by saving the socket state,
setting it blocking, doing the sendfile until completion and then
restoring the socket state.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13537
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Currently determined twice in the clear-if-first codepath and once in
the ctdb code path. Do it once at the top of the function.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Mon Jul 16 21:11:30 CEST 2018 on sn-devel-144
Guenther
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13529
Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Sat Jul 14 03:09:00 CEST 2018 on sn-devel-144
The test writes 20M and then splices just over 1M (13M is intended,
but there's a 1024*0124 typo). Fix the type and reduce the size of the
dataset to make it run faster - cli_splice works with 1M chunks
(SPLICE_BLOCK_SIZE), and the reproducer only requires that the splice
size is not chunk-aligned.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Jul 14 00:14:13 CEST 2018 on sn-devel-144
We were always asking for SPLICE_BLOCK_SIZE even when the
remaining bytes we wanted were smaller than that. This works
when using cli_splice() on a complete file, as the cli_read()
terminated the read at the right place. We always have the
space to read SPLICE_BLOCK_SIZE bytes so this isn't an overflow.
Found by Bailey Berro <baileyberro@google.com>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13527
Signed-off-by: Bailey Berro <baileyberro@google.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
Autobuild-User(master): David Disseldorp <ddiss@samba.org>
Autobuild-Date(master): Fri Jul 13 14:57:14 CEST 2018 on sn-devel-144
Currently 0 also means unlimited, but that will change soon,
to force no thread and strict sync processing.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
