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Credit to OSS-Fuzz
Found using the ndr_fuzz_X target.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
An NDR pull of a function will fill in either the in. or out.
elements of this structure, but never both.
However, some structures have size_is() in the out. that reference
the in. elements. This is the reason for the --context-file option
in ndrdump.
We have a special handler in the fuzzing case embedded in the
pidl-generated output to cope with this, by filling in pointers
for elements declared [ref,in] but it relies on the in-side
(at least) of the buffer being zeroed.
So zero the buffer before we start. Sadly this means things
like valgrind can not find a use of uninitialised data, but that
is a price we have to pay.
Credit to OSS-Fuzz
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
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 Dec 18 00:05:13 UTC 2019 on sn-devel-184
With the last commit we don't store the share mode entry count
anymore. With this commit we go one step further and avoid storing
it. If there's valid record in locking.tdb, there is a corresponding
record in share_entries.tdb, so there's no point storing that once
more explicitly.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is a micro-commit showing that we don't actually need
share_mode_data->num_share_modes as a number *counting* the share mode
entries in share_entries.tdb anymore. Instead, we are only using it as
an indication for share_mode_lock_destructor() to see whether share
entries are around or not, i.e. whether it's worth keeping or deleting
the record in locking.tdb.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This hides a use of share_mode_data->num_share_modes in
share_mode_lock.c
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
share_mode_data->num_share_modes will go away soon, count the values
directly while walking the array.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
mark_share_mode_disconnected_fn() will need this, the information is
easily available and should not hurt the other callers.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
In order to not write the share mode on every open/close, we need to get rid of
share_mode_data->num_share_modes. "net tdb" needs this information precisely
though, and it's pretty cheap to calculate.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
For file paths relative to root, ceph_snap_get_parent_path() may return
an empty parent dir string, in which case the CephFS snashot path should
be ".snap".
Bug: https://bugzilla.samba.org/show_bug.cgi?id=14216
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
On receiving an already initialized stat_ex buffer for readdir() call we
invoke readdirplus() GlusterFS API, an optimized variant of readdir(),
which then returns stat information along with dir entry result. But for
symlink entries we don't know if link or target info is needed. In that
case it is better to leave this decision back to caller by resetting
nlinks value inside stat information to make it invalid.
This was also preventing us from displaying msdfs link as directories
inside the share.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14182
Signed-off-by: Anoop C S <anoopcs@redhat.com>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Dec 17 21:53:07 UTC 2019 on sn-devel-184
Signed-off-by: Simo Sorce <idra@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Dec 17 09:24:56 UTC 2019 on sn-devel-184
We don't need to unparse the locking.tdb record, we just need to wake
up waiters when removing an oplock
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 Dec 16 20:27:59 UTC 2019 on sn-devel-184
We don't need to unparse the locking.tdb record, we just need to wake
up waiters when downgrading a lease
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This will allow it to be called from other places once the get/set_msdfs
calls are moved into being first class VFS functions.
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): Mon Dec 16 15:32:08 UTC 2019 on sn-devel-184
This is a non-negative count. Fix remaing code to not mix int and size_t.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Compile error:
[4530/4693] Compiling source3/utils/regedit_list.c
In file included from ../../source3/utils/regedit_list.h:24,
from ../../source3/utils/regedit_list.c:20:
/usr/include/curses.h:611:28: error: conflicting types for ‘attr_get’
611 | extern NCURSES_EXPORT(int) attr_get (attr_t *, NCURSES_PAIRS_T *, void *); /* generated */
| ^~~~~~~~
compilation terminated due to -Wfatal-errors.
Both ncurses and XFS xattr API provide a get_attr() function. As a workaround
avoid including <sys|attr/attributes.h> if <attr|sys/xattr.h> is present.
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 Dec 12 20:22:51 UTC 2019 on sn-devel-184
This breaks the ABI so we merge this into the unreleased libndr-1.0.0.
The advantage of the new functions is there (except for print, which
is unchanged) is an error raised when the token is not found, so
we can be confident in the changes to the token behaviour.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Dec 12 03:56:23 UTC 2019 on sn-devel-184
By removing this we know we do not need to worry about this list
growing without bounds. We merge this into the recently created but
not yet released ABI 1.0.0
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
By removing this we know we do not need to worry about this list
growing without bounds.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Found by Douglas Bagnall using Hongfuzz and the new fuzz_ndr_X
fuzzer.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
The set was within the switch, the get was before the switch.
The difference is shown when there is an empty default element.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Found by Douglas Bagnall using Hongfuzz and the new fuzz_ndr_X
fuzzer.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
The set was within the switch, the get was before the switch.
The difference is shown when there is an empty default element.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This avoids really long token lists for switch values
that will not be needed past this point.
The function name is changed to clarify what exactly is being
done here, and the old function is removed to ensure it is
not being used anywhere else.
Merge the removal of ndr_print_get_switch_value into
just-tagged librpc/ABI/ndr-1.0.0.sigs as this
has not been put into any release yet.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This will allow generated code to instead push and pop union values onto the
switch_list stack, which is more memory efficient than creating a single large
list to be scannned and eventually discarded.
Merge into unreleased ABI 1.0.0
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This means what was previously a list becomes a single variable that
could be passed as a function paraemter, but this is avoided for now
because it would change the ABI and be more intrusive.
Before this, a client could cause a NDR token containing the swith level
to be allocated for each and every element in the array that they
promised they were sending (without having to actually send them).
Found by Michael Hanselmann using Honggfuzz and an fuzzer for Samba's
NDR layer.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This is designed to stop a very large number of tokens from being stored for
arrays of structures containing relative pointers in particular.
This was one part of the minimum patch for CVE-2019-14908 before
being downgraded as not a security-release worthy issue.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This was one part of the minimum patch for CVE-2019-14908 before
being downgraded as not a security-release worthy issue.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This is a good example with both buffers and scalars in the union.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13876
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
The test suite will bind to the srvsvc interface, let it find the
correct endpoint through the endpoint mapper.
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Dec 12 02:00:19 UTC 2019 on sn-devel-184
