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This patch adds 3 new VFS OPs for Windows byte range locking: BRL_LOCK_WINDOWS,
BRL_UNLOCK_WINDOWS and BRL_CANCEL_WINDOWS. Specifically:
* I renamed brl_lock_windows, brl_unlock_windows and brl_lock_cancel to
*_default as the default implementations of the VFS ops.
* The blocking_lock_record (BLR) is now passed into the brl_lock_windows and
brl_cancel_windows paths. The Onefs implementation uses it - future
implementations may find it useful too.
* Created brl_lock_cancel to do what brl_lock/brl_unlock do: set up a
lock_struct and call either the Posix or Windows lock function. These happen
to be the same for the default implementation.
* Added helper functions: increment_current_lock_count() and
decrement_current_lock_count().
* Minor spelling correction in brl_timeout_fn: brl -> blr.
* Changed blocking_lock_cancel() to return the BLR that it has cancelled. This
allows us to assert its the lock that we wanted to cancel. If this assert ever
fires, this path will need to take in the BLR to cancel, rather than choosing
on its own.
* Adds a small helper function: find_blocking_lock_record_by_id(). Used by the
OneFS implementation, but could be useful for others.
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blocking_lock_record.
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This changelist allows for the addition of custom performance
monitoring modules through smb.conf. Entrypoints in the main message
processing code have been added to capture the command, subop, ioctl,
identity and message size statistics.
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This the global variable "orig_inbuf" in the old chain_reply code. This global
variable was one of the reasons why we had the silly restriction to not allow
async requests within a request chain.
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The goal is to move all this variables into a big context structure.
metze
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metze
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Instead, fix up the outbuf in send_xx_reply. In those routines, we know
what we are returning.
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The only caller of this function is locking_close_file(). This checks itself if
brl_lock != NULL. The additional check is not necessary here.
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The "else" is pointless here, we did a "return True" in the if branch.
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Use "continue" for (SVAL(blr->inbuf,smb_mid) != mid)
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Use a "continue" for (blr->fsp->fnum != fsp->fnum)
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This is necessary if we want to keep the whole smb_request for deferred ops.
The explicit settings of req->inbuf will be removed once all those deferring
operations are converted to store the whole request and not just the inbuf.
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(This used to be commit 444e35e7df1f13fc285183da8fb41b30ad99a3fa)
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Jeremy.
(This used to be commit 3e3205309b75edf7d29633525adfdceb5f8856eb)
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a lock due to file closure make sure we null out the fsp pointer
so it isn't dangling. This is an old bug (not related to the new
changes).
Jeremy.
(This used to be commit b5ee972b0c04b4d119573d95ac458a3b6be30c5c)
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with Volker. Mostly making sure we have data on the incoming
packet type, not stored in the smb header.
Jeremy.
(This used to be commit c4e5a505043965eec77b5bb9bc60957e8f3b97c8)
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to zero). If non-zero, writeX calls greater than this
value will be left in the socket buffer for later handling
with recvfile (or userspace equivalent). Definition of
recvfile for your system is left as an exercise for
the reader (I'm working on getting splice working :-).
Jeremy.
(This used to be commit 11c03b75ddbcb6e36b231bb40a1773d1c550621c)
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bugs in various places whilst doing this (places that assumed
BOOL == int). I also need to fix the Samba4 pidl generation
(next checkin).
Jeremy.
(This used to be commit f35a266b3cbb3e5fa6a86be60f34fe340a3ca71f)
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This adds the two functions talloc_stackframe() and talloc_tos().
* When a new talloc stackframe is allocated with talloc_stackframe(), then
* the TALLOC_CTX returned with talloc_tos() is reset to that new
* frame. Whenever that stack frame is TALLOC_FREE()'ed, then the reverse
* happens: The previous talloc_tos() is restored.
*
* This API is designed to be robust in the sense that if someone forgets to
* TALLOC_FREE() a stackframe, then the next outer one correctly cleans up and
* resets the talloc_tos().
The original motivation for this patch was to get rid of the
sid_string_static & friends buffers. Explicitly passing talloc context
everywhere clutters code too much for my taste, so an implicit
talloc_tos() is introduced here. Many of these static buffers are
replaced by a single static pointer.
The intended use would thus be that low-level functions can rather
freely push stuff to talloc_tos, the upper layers clean up by freeing
the stackframe. The more of these stackframes are used and correctly
freed the more exact the memory cleanup happens.
This patch removes the main_loop_talloc_ctx, tmp_talloc_ctx and
lp_talloc_ctx (did I forget any?)
So, never do a
tmp_ctx = talloc_init("foo");
anymore, instead, use
tmp_ctx = talloc_stackframe()
:-)
Volker
(This used to be commit 6585ea2cb7f417e14540495b9c7380fe9c8c717b)
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Ronnie. If a lock timeout expires, we must check we can get the
lock before responding with failure. Volker is writing a torture test.
Jeremy.
(This used to be commit 45380f356b99d575645873b05af17c504b091dc8)
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(This used to be commit 17df313db42199e26d7d2044f6a1d845aacd1a90)
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(This used to be commit cb8fab5663db2cb408e1b85a7287d3670b09d503)
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This changes send_trans2_replies to not depend on large buffers anymore
and finishes the trans2 conversion.
(This used to be commit b1d133e4ffa8c9b8219ba6e7b83e23ca4bdd1616)
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Fake a struct smb_request here.
Volker
(This used to be commit f712d1c92bee024a165b5facabdac1e2c866d9b1)
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(This used to be commit e6d592dcb8ff9f986b531435d0d03df20880880b)
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InBuffer/OutBuffer
The complete history of this patch can be found under
http://www.samba.org/~vlendec/inbuf-checkin/.
Jeremy, Jerry: If possible I would like to see this in 3.2.0. I'm only
checking into 3_2 at the moment, as it currently will slow down operations for
all non-converted (i.e. all at this moment) operations, as it will copy the
talloc'ed inbuf over the global InBuffer. It will need quite a bit of effort
to convert everything necessary for the normal operations an XP box does.
I have patches for negprot, session setup, tcon_and_X, open_and_X, close. More
to come, but I would appreciate some help here.
Volker
(This used to be commit 5594af2b208c860d3f4b453af6a649d9e4295d1c)
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(This used to be commit b0132e94fc5fef936aa766fb99a306b3628e9f07)
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Jeremy.
(This used to be commit 407e6e695b8366369b7c76af1ff76869b45347b3)
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failed expression in SMB_ASSERT.
(This used to be commit 171dc060e2a576d724eed1ca65636bdafffd7713)
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(This used to be commit a8082a3c7c3d1e68c27fc3bf42f3d44402cc6f9f)
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lock we know nothing about that we retry the lock every
10 seconds instead of waiting for the standard select
timeout. This is how we used to (and are supposed to)
work.
Jeremy.
(This used to be commit fa18fc25a50cf13c687ae88e7e5e2dda1120e017)
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tomorrow.
(This used to be commit 74fa57ca5d7fa8eace72bbe948a08a0bca3cc4ca)
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locking/locking.c we have to send retry messages to timed lock holders.
The majority of this patch passes a "struct messaging_context" down
there. No functional change, survives make test.
(This used to be commit bbb508414683eeddd2ee0d2d36fe620118180bbb)
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patch.
This changes "struct process_id" to "struct server_id", keeping both is
just too much hassle. No functional change (I hope ;-))
Volker
(This used to be commit 0ad4b1226c9d91b72136310d3bbb640d2c5d67b8)
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to all callers of smb_setlen (via set_message()
calls). This will allow the server to reflect back
the correct encryption context.
Jeremy.
(This used to be commit 2d80a96120a5fe2fe726f00746d36d85044c4bdb)
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server. Allow server to reflect back to calling client
the encryption context that was sent.
Jeremy.
(This used to be commit b49e90335d1e589916b5ab4992e3c4a2d221ca7e)
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The idea is that we have blocking.c:brl_timeout as a timed
event that is present whenever we do have a blocking lock
pending. It fires brl_timeout_fn() which calls
process_blocking_lock_queue().
Whenever we make changes to blocking_lock_queue, we trigger
a recalc_brl_timeout() which sets a new brl_timout event if
necessary. This makes the call to
blocking_locks_timeout_ms() in setup_select_timeout()
unnecessary, this is implicitly done in
event_add_to_select_args() from the timed events.
Volker
(This used to be commit 7e31b8ce21de803ac1f8967967393341a3f44ac3)
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void message_register(int msg_type,
void (*fn)(int msg_type, struct process_id pid,
- void *buf, size_t len))
+ void *buf, size_t len,
+ void *private_data),
+ void *private_data)
{
struct dispatch_fns *dfn;
So this adds a (so far unused) private pointer that is passed from
message_register to the message handler. A prerequisite to implement a tiny
samba4-API compatible wrapper around our messaging system. That itself is
necessary for the Samba4 notify system.
Yes, I know, I could import the whole Samba4 messaging system, but I want to
do it step by step and I think getting notify in is more important in this
step.
Volker
(This used to be commit c8ae60ed65dcce9660ee39c75488f2838cf9a28b)
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functions return NTSTATUS.
Jeremy.
(This used to be commit 1f3c2b2abca6f1b3b59b73df038832e14106ff76)
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send_smb failures should be clean exits. All times when we exit as
a matter of policy should also be clean exits.
(This used to be commit d6382092e72120a3c89ffe81975e8898d454bf06)
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(This used to be commit ac3eb7813e33b9a2e78c9158433f7ed62c3b62bb)
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