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share_mode_stale_pid internally only has to deal with uint32_t. Make
the parameter match this.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
With the rewritten brl_get_lock_readonly we only set the destructor for
r/w lock records anyway.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Sun Oct 6 22:20:05 CEST 2013 on sn-devel-104
This is step 1 to get rid of brl_get_locks_internal with its complex readonly
business. It also optimizes 2 things: First, it uses dbwrap_parse_record to
avoid a talloc and memcpy, and second it uses talloc_pooled_object.
And -- hopefully it is easier to understand the caching logic with
fsp->brlock_rec and the clustering escape.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Without clustering, fsp->brlock_rec will never be set anyway. In the
clustering case we can't use the seqnum trick, so this is slow enough
that the additional if-statement does not matter in this case anyway. In
the non-clustered case it might. Have not measured it, but every little
bit helps I guess.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Sun Oct 6 15:49:43 CEST 2013 on sn-devel-104
If someone messes with brlock.tdb and inserts an invalid record length,
this will lead to memcpy overwriting a few bytes behind malloc'ed data.
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): Thu Sep 12 03:26:45 CEST 2013 on sn-devel-104
There's no point checking the validity of the "entry" argument more
than once
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
The comment for this routine said:
> Modifies d->num_share_modes, watch out in routines iterating over
> that array.
Well, it turns out that *every* caller of this API got it wrong. So I
think it's better to change the routine.
This leaves the array untouched while iterating but filters out the
deleted ones while saving them back to disk.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
For a given file, clean share mode entries for a given persistent file id.
Pair-Programmed-With: Michael Adam <obnox@samba.org>
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Gregor Beck <gbeck@sernet.de>
Signed-off-by: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
For a given file, clean up brl entries belonging to a given persistent file id.
Signed-off-by: Gregor Beck <gbeck@sernet.de>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
We should not remove locks of disconnected opens just like that.
When getting the byte range lock record for a newly connected file
handle, we still do the clean up, because in that situation,
disconnected entries are not valid any more.
Signed-off-by: Gregor Beck <gbeck@sernet.de>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
...instead of checking each server-id separately which can
be expensive in a cluster.
Signed-off-by: Gregor Beck <gbeck@sernet.de>
Reviewed-by: Michael Adam <obnox@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
fsp->fnum and lock->fnum are uint64_t already and we should not truncate the value here.
Currently this doesn't matter as we only use 16-bit.
But as 'int' is int32_t and we later compare fnum with lock->fnum == fnum,
the cast from int32_t to uint64_t goes via int64_t instead of uint32_t.
This means even if fsp->fnum just uses 32-bit of the uint64_t
we'll get the wrong result, as the implicit cast from a negative int32_t
value to uint64_t adds 0xFFFFFFFF00000000.
metze
The fd count is implicit
Signed-off-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jun 14 01:53:17 CEST 2012 on sn-devel-104
Note: this changes the format of brlock.tdb!
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Autobuild-User: Michael Adam <obnox@samba.org>
Autobuild-Date: Wed Jun 6 23:22:00 CEST 2012 on sn-devel-104
Introduce find_delete_on_close_token. Thus is_delete_on_close_set
does not have to call get_delete_on_close_token anymore.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Fri Jun 1 18:58:30 CEST 2012 on sn-devel-104
If a process died, the share mode entry might be bogus. Ignore those entries.
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
This is a helper routine that prunes a dead share mode entry on demand. This
prepares for removing the serverids_exist call in parse_share_modes.
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
This is a helper routine that prunes a dead share mode entry on demand. This
prepares for removing the serverids_exist call in parse_share_modes.
Signed-off-by: Jeremy Allison <jra@samba.org>
The delete tokens are unique to each name hash representing a pathname,
if we don't correctly return here we'll add duplicate tokens for a
given pasname hash.
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Sat Apr 7 02:13:58 CEST 2012 on sn-devel-104
Now that we always require a 64 bit off_t, we no longer need SMB_OFF_T.
Andrew Bartlett
Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Fri Apr 6 01:47:43 CEST 2012 on sn-devel-104
get_share_mode_lock_fresh is just a confusing name
Autobuild-User: Volker Lendecke <vl@samba.org>
Autobuild-Date: Sun Feb 19 19:16:41 CET 2012 on sn-devel-104
This will be used to enforce a lock hierarchy between the databases. We have
seen deadlocks between locking.tdb, brlock.tdb, serverid.tdb and notify*.tdb.
These should be fixed by refusing a dbwrap_fetch_locked that does not follow a
defined lock hierarchy.
This forces us to only do one real get_share_mode_lock call and
share the data between the nested get_share_mode_lock calls.
Signed-off-by: Jeremy Allison <jra@samba.org>
This slightly simplifies the code path for all callers which assume
that a share mode exists already. Only the callers in open_file_ntcreate
and open_directory will ever create new share modes.
Signed-off-by: Jeremy Allison <jra@samba.org>
This replaces fill_share_mode_lock() with the two routines
fresh_share_mode_lock() and parse_share_modes(). This lifts the
decision whether a share mode already existed on level up.
Signed-off-by: Jeremy Allison <jra@samba.org>
SMB_ASSERT is useless, since in non-developer build it does not actually
fail after the log message, but usual flow just continues.
Autobuild-User: Michael Adam <obnox@samba.org>
Autobuild-Date: Fri Nov 25 14:59:53 CET 2011 on sn-devel-104
