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As per MS-SMB2 and MS-FSA and our SMB_VFS_STRICT_LOCK implementation,
we're merely testing for locks, not setting any.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12887
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): Tue Jul 11 03:37:44 CEST 2017 on sn-devel-144
It's just a noop, so let's remove it. SMB_VFS_STRICT_LOCK doesn't set
logs, it just checks for the presence of incompatible locks.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12887
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Add some helper functions that will be used to update a bunch of checks
for exclusive oplocks to the lease area.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=12766
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The boolean out parameter "queued" tells the caller whether the
async request is blocked in a full send queue:
false := request is dispatched
true := send queue is full, request waiting to be dispatched
This is useful in a clustered Samba environment where the async dbwrap
request is sent over a socket to the local ctdbd.
If the send queue is full and the caller was issuing multiple async
dbwrap requests in a loop, the caller knows it's probably time to stop
sending requests for now and try again later.
This will be used in subsequent commits in
smbd_smb2_query_directory_send() when implementing async write time
updates. Directories may contain umpteen files so we send many requests
to ctdb without going through tevent and reading the responses which
has the potential to deadlock.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
We will need this to implement open file description record locks.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Jeff Layton <jlayton@samba.org>
Add stream name argument to share_entry_forall machinery so smbstatus
can print the stream name of a file.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11550
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We now have reset_delete_on_close_lck, this was called with "true"
everywhere now.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Boolean flags passed down make things more complex than necessary...
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Pair-Programmed-With: Jeremy Allison <jra@samba.org>
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
This avoids the need to do sweeping validate_lock_entries calls
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Pass "struct lock_struct" as a parameter. This had to be destructured
before the call and re-constructed inside brl_locktest.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This implements an idea by metze: Right now Samba does not grant level2
oplocks where it should: After an initial no-oplock open that has been
written to, we don't have the FAKE_LEVEL2_OPLOCK entry in locking.tdb
around anymore, this downgraded to NO_OPLOCK. Windows in this case will
grant level2 if being asked, we don't. Part of the reason for this
is that we don't have a proper mechanism to communicate the fact that
level2 needs to be broken to other smbds. Metze's insight was that we
have to look into brlock.tdb for every write anyway, so this might be
the right place to store this information.
My first reaction was that this is really hackish, but on further thought
this is not. oplocks depend on brlocks anyway, and we have the proper
mechanisms in place for brlocks.
The format for this change is to add one byte to the end of the brlock.tdb
record with value 1 if we have level2 oplocks around. Thus this patch
effectively reverts 8f41142 which I discovered while writing this
change. We now legally have unaligned records.
We can certainly talk about the format, but I'm not yet convinced we
need an idl for this yet. This is a potentially very hot code path,
and ndr marshalling has a cost.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
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>
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>
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>
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 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>
