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to copy over the copy of the access_mask, open_access_mask.
Jerry - this is a definate fix for a 3.0.23b and should also
be on the patches page. CIFSFS breaks without this.
Jeremy.
(This used to be commit d11e71ebcc)
that create dispositions that cause O_TRUNC break
oplocks. This simplifies the code - although we have
to keep separate the client requested access mask and
the access mask we actually use to open the file.
Jeremy.
(This used to be commit 3bcd52a475)
oplocks that were granted when we had released the lock. Fix
strange case where stat open grants a batch oplock on file
create, but grants no oplock on file open.
Jeremy.
(This used to be commit b7374835e6)
no way to get all the cases where kernel oplocks are
on and we can't open the file and get the correct
semantics (think about the open with truncate with
an attribute only open - we'd need a vfs change to
add the truncate(fname, len) call). So always drop
the share mode lock before doing any real fd opens and
then re-acquire it afterwards. We're already dealing
with the race in the create case, and we deal with
any other races in the same way. Volker, please
examine *carefully* :-). This should fix the problems
people reported with kernel oplocks being on.
Jeremy.
(This used to be commit 8171c4c404)
share_mode struct. Allows us to know the unix
uid of the opener of the file/directory. Needed
for info level queries on open files.
Jeremy.
(This used to be commit d929323d6f)
This allows a requestor to set FORCE_OPLOCK_BREAK_TO_NONE
to ensure we don't break to level 2. Fixed a couple
of resource leaks in error paths in open_file_ntcreatex.
Jeremy.
(This used to be commit c7c9adcce7)
mid replies on path based set-eof trans2 calls.
Needs modification for HEAD (as in head open_file_ntcreateX
properly returns NTSTATUS - I'll fix this tomorrow my
time). Secondly it still fails the Samba4 RAW-OPLOCK
smbtorture because of an interesting case. Our oplock
code always returns "break to level 2" if it can.
In this case (path-based set-eof or set-allocation size
on an exclusive oplocked file) W2K3 always sends a
break-to-none. We send the break to none (from level2)
after we've done the write for eof or allocation size.
I need to work out some way of telling our break code
to always break to none (might need to extend the message
field).
Jeremy.
(This used to be commit ad9895c654)
This could be the cause of the perf. problem reported
between 3.0.14a and 3.0.2x. Lufthansa has *wireless*
on their flights to the USA now... (I'm in heaven ! :-).
Jeremy.
(This used to be commit dbc03125f2)
is produced when a process exits abnormally.
First, we coalesce the core dumping code so that we greatly improve our
odds of being able to produce a core file, even in the case of a memory
fault. I've removed duplicates of dump_core() and split it in two to
reduce the amount of work needed to actually do the dump.
Second, we refactor the exit_server code path to always log an explanation
and a stack trace. My goal is to always produce enough log information
for us to be able to explain any server exit, though there is a risk
that this could produce too much log information on a flaky network.
Finally, smbcontrol has gained a smbd fault injection operation to test
the changes above. This is only enabled for developer builds.
(This used to be commit 56bc02d644)
because lck->num_share_modes != 0 doesn't mean that
there *are* other valid share modes. They may be
all marked "UNUSED" or be deferred open entries.
In that case don't downgrade the granted oplock to
level2 needlessly - a client can have an exclusive
oplock in this case. The original code handled this
correctly in the lck->num_share_modes == 0 case but
not in the case where there were no valid share modes
but lck->num_share_modes != 0. I'll clean up my
Samba4 torture tester for this and commit it tomorrow.
Jeremy.
(This used to be commit 306061c93d)
The sad thing is the core of this bug fix is just
removing a paranoia "exit_server" call, as the
rest of the logic was already correct :-).
Lots of comments to explain the logic added.
I will look at adding tests to exercise this,
might be possible.
Jeremy.
(This used to be commit c2488db727)
Remove check_for_pipe() - Volker was completely correct.
If it gets re-added it will be in a old open call path, not
in the generic code path.
Jeremy.
(This used to be commit 50c894a6e9)
honored (ie. the file gets deleted) for derectories when set at open
time - even though it doesn't show in the qfileinfo call. This is not
true of files.... (if anyone from the EU is listening, it's stuff like
this that makes CIFS non-documentable :-).
Jeremy.
(This used to be commit e2fc8a196a)
by saving the UNIX token used to set a delete on close flag,
and using it when doing the delete. libsmbsharemodes.so still
needs updating to cope with this change.
Samba4 torture tests to follow.
Jeremy.
(This used to be commit 23f16cbc2e)
always linearize into little-endian. Should fix all
Solaris issues with this, plus provide a cleaner base
moving forward for cluster-aware Samba where smbd's
can communicate across different compilers/architectures
(eventually these message will have to go cross-machine).
Jeremy.
(This used to be commit d01824b785)
oplocks across the cluster. Adapt Samba to it.
The gpfs API is called via libgpfs.so. This code is written with dlopen(), so
that you can compile on a system with gpfs installed and later on run on
systems without gpfs available.
So to actually make Samba call gpfs share mode calls you need to compile with
gpfs.h and libgpfs.so around and set 'gpfs share = yes' on the shares you
export from GPFS.
Volker
(This used to be commit 2253b17a1a)
that have open file handles to allow them to correctly
implement delete on close. There is a further correctness
fix I'm intending to add to this to cope with different share
paths, but not right now...
Jeremy.
(This used to be commit 932e337db8)
revving the minor version number for libsmbsharemodes (we
now have a new _ex interface that takes the share path
as well as the filename). Needed for #3303. Some code written
by SATOH Fumiyasu <fumiya@samba.gr.jp> included in the changes
to locking/locking.c. The smbstatus output is a bit of a mess
and needs overhauling...
Jeremy.
(This used to be commit 9d93af713f)
can treat them similarly to file opens (delete on
close, share mode violations etc.). This fixes bug
#3216 I will up the default hash size on the locking
db in a later commit as this means more entries.
Jeremy.
(This used to be commit 1134abbbb3)
<alex@infobit.ru>. A fcbopen specific part of the code was erroneously
being called as part of the mainline open. Note, that this patch
superceeds and replaces the fix that Volker added for this bug
(which he added a Samba4 torture test for ) :
"Fix a race condition in Samba 3. If two files are opened simultaneously with
NTCREATEX_DISP_CREATE (create if not exists, else fail) they might end up with
two or more times NT_STATUS_OK as EEXIST is not correctly handled."
Jeremy.
(This used to be commit 5d7ab9a17e)
* \PIPE\unixinfo
* winbindd's {group,alias}membership new functions
* winbindd's lookupsids() functionality
* swat (trunk changes to be reverted as per discussion with Deryck)
(This used to be commit 939c3cb5d7)
NTCREATEX_DISP_CREATE (create if not exists, else fail) they might end up with
two or more times NT_STATUS_OK as EEXIST is not correctly handled.
Jeremy, please look closely at this. You can easily verify this by adding a
smb_msleep(100) to the top of open_file_ntcreate and run the new samba4
torture test. It does also happen without the msleep, but not as reliably.
Thanks,
Volker
(This used to be commit 58b9e48df0)
