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Wrap mdb_env_open to ensure that we only have one MDB_env opened per
database in each process
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
We need to enforce the GUID index mode so end-users do not get a
supprise in mid-operation and we enforce a max key length of 511 so
that the index key trunctation is done correctly.
Otherwise the DB will appear to work until a very long key (DN or
index) is used, after which it will be sad.
Because the previous ldb_lmdb_test confirmed the key length by
creating a large DN, those tests are re-worked to use the GUID index
mode. In turn, new tests are written that create a special DN around
the maximum key length.
Finally a test is included that demonstrates that adding entries to
the LMDB DB without GUID index mode fails.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This is used in selftest with 'ldb:nosync = true'.
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13362
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 May 15 09:37:21 CEST 2018 on sn-devel-144
Based on work for an mdb-specific test by Gary Lockyer
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed May 9 07:27:24 CEST 2018 on sn-devel-144
We need to show that despite the internal cache of TDB pointers that it
is safe to open a ldb_tdb after a fork()
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Otherwise we rely on the caller doing tdb_reopen_all() which should
not be their job.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
(Split from a larger commit by Andrew Bartlett)
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
We may relax this restriction in the future, but for now do not assume
that the caller has done a tdb_reopen_all() at the right time.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
The LMDB backend requires the GUID index mode, so prepare for it
by setting a unique objectGUID on each record. Also prepare for the
index list to be optionally set as an attribute on the test object,
allowing the GUID index mode to be set later when LMDB is configured.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu May 3 11:08:12 CEST 2018 on sn-devel-144
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This will ensure we match LMDB behaviour and avoid a repeat of the per-record locking
issues (compared with full DB locking) we had before Samba 4.7.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This avoids keeping a counter, which can be error-prone.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
The ldb_cache startup code would previously not take a read lock
nor a sufficiently wide write transaction.
The new code takes a read lock, and if it needs to write takes a
write lock (transaction) and re-reads before continuing.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
We need to enforce the GUID index mode so end-users do not get a supprise
in mid-operation and we enforce a max key length of 511 so that the
index key trunctation is done correctly.
Otherwise the DB will appear to work until a very long key (DN or index)
is used, after which it will be sad.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
With the changes to make samba python code Py2/Py3 compatible there
now are many instances where string content is decoded.
Decoded string variables in Py2 are returned as the unicode type. Many
Py2 c-module functions that take string arguments only check for the
string type. However now it's quite possibe the content formally passed
as a string argument is now passed as unicode after being decoded,
such arguments are rejected and code can fail subtly. This only affects
places where the type is directly checked e.g. via PyStr_Check etc.
arguments that are parsed by ParseTuple* functions generally already
accept both string and unicode (if 's', 'z', 's*' format specifiers
are used)
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
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): Fri Apr 6 14:58:48 CEST 2018 on sn-devel-144
Add tests for the behaviour the ldb layer expects the key value layer to
provide. This should make it easier to add another KV store
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This avoids magic numbers and also is careful against overflow
from a long attr_for_dn.
This is done as a distinct commit to make the previous behaviour
change more clear, and to show that this does not change the
calculations, only improves the overflow check.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
These are tests are specifically for when the GUID index is not in use
which is always in with ldb_mdb.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13335
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 Apr 5 07:53:10 CEST 2018 on sn-devel-144
The re-index traverse can abort part-way though and we need to ensure
that the transaction is never committed as that will leave an un-useable db.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13335
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
