Age | Commit message (Collapse) | Author | Files | Lines |
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(This used to be commit 3d2d19b91036b6b11a33996d4b8bf266bad32737)
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level 2 and a request for open with no oplock is received then the
smbd should send *synchronous* break messages, not asynchronous,
otherwise it spins very rapidly, releasing the lock, sending the
'break to none' messages and then re-acquiring the lock before
any other process has a chance to get the lock and remove it's own
oplock (at least on linux).
Jeremy.
(This used to be commit d1e8991a76a57b7d96dd7db3c1d9bbf5b28da88e)
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is that there are some times when we should return an EINTR from a select,
some times when we should not. As we can take a signal at any time, we
have to eat EINTR's in some selects. This means we need to check for
kernel oplock breaks more often in the main loop, as well as add the
queuing mechanism needed for the changenotify code (due to the mistake
in understanding POSIX semantics w.r.t. setting a signal mask in a
signal handler). This code now passes all my tests.
However, (and IMHO and I know tridge disagrees) - the correct way to
fix this is to run with RT signals blocked and explicitly unblock
them just before the main select, block them after and then process
them all in one place. Just my 2cents :-).
Jeremy.
(This used to be commit a8c85372e2826a07117c89b39270cde8641ce55d)
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Jeremy.
(This used to be commit f536ec62242c5c644e03afa19f4a3ebedf36f80d)
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my removal of the goto. Oops !
Jeremy.
(This used to be commit 4d3679e03e0c30602b1345cbf2fbf8587dff1f26)
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Jeremy.
(This used to be commit 5c8351228c55f2403214351f6fd16fe231aee917)
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Jeremy.
(This used to be commit 490b95a35d1e2ccd3b80db5cfcf7b9804901d36e)
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Jeremy.
(This used to be commit 7e6db250804e51ce0883b972831da455d389cdcd)
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Jeremy.
(This used to be commit d4dbb9cb1338332bda3651dc4b86abcf47e9c2d2)
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another smbd and an incoming SIGUSR1 message arrived we'd break out of
the wait early - as we have to use sys_select() to wait for an oplock
response message, not sys_select_intr() (which ignores EINTR errors)
because of the real time signal kernel interface.
Jeremy.
(This used to be commit 3bb26957e3e7fb5059d21115546d189eaca34646)
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Jeremy.
(This used to be commit 174df5d914b149e52bf260e6502f2436c2720958)
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Jeremy.
(This used to be commit 64974fa334fd757ff5cfd1bd32d7300bf8a6208c)
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Jeremy.
(This used to be commit 68c0eb5ca7bc96cfdc8df07bd84f3e49de024b81)
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mangling implementation, selectable using "mangling method = " in smb.conf
It also tidies the interface a little, although it is still nasty.
(This used to be commit be23d87a178e7d0691e7d942adf89bb3d2d533c2)
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Jeremy.
(This used to be commit f032c6f710cb0edcf02f25db81c83478b9a8ab1e)
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processing work correctly in winbindd. This is a really good patch
that gives full select semantics to the Samba modified select.
Jeremy.
(This used to be commit 3af16ade173cac24c1ac5eff4a36b439f16ac036)
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Changed "SMB/Netbios" to "SMB/CIFS" in file header.
(This used to be commit 6a58c9bd06d0d7502a24bf5ce5a2faf0a146edfa)
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(This used to be commit dfb8566220c3e90ca2b757ea124f53aed103269e)
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(This used to be commit 1b3123df48ca586b3d9c86a152354690836f6beb)
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in a tdb.
Jeremy.
(This used to be commit 058ae6b58f61ef46013dd076af3a84de5fbaaab1)
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Ensure make_conection() can only be called as root.
Jeremy.
(This used to be commit 8d23a7441b4687458ee021bfe8880558506eddba)
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(This used to be commit 2d0922b0eabfdc0aaf1d0797482fef47ed7fde8e)
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(This used to be commit a95943fde0ad89ae3f2deca2f7ba9cb5ab612b74)
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that oplock break messages get priority over incoming client messages.
Jeremy.
(This used to be commit 1779f6a223dad87c3b8451d09b9808b46495a8b6)
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This may have bearing on the Solaris fcntl spin bug.
Jeremy.
(This used to be commit 0f676202529cbfead629d2c228b7d5abc2dff7d6)
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Don't delete a share mode that failed to remove the oplock (doh!),
just set the oplock entry to zero....
Jeremy.
(This used to be commit fe4aa720181a43f7a636ca029680fab0c836b968)
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link from Seattle is having problems.
I've added 3 things here to work on the fcntl spin
problem.
1). Check *all* tdb return codes... :-).
2). If we're asking ourselves to break an oplock, and we can't
find a fsp pointer that matches the entry, this is a *logic bug*
and we should abort and panic so someone with gdb can pick up
the pieces.
3). After we've broken an oplock, ensure that the entry itself
has been removed, and if not remove it ourselves. This should
not be neccessary in a correctly working environmen,t, but will
provide an added layer of robustness in error situations.
4). I hate german keyboards :-) :-).
Jeremy.
(This used to be commit 1c94fa80646f9e31377fbb41332fe4780f550cab)
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instead of a define
(This used to be commit e2ecff419fdc0a0dc7551b33b377dc11061ef2a3)
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cleaned on clients abending connections. Thanks Andrew !
Jeremy.
(This used to be commit 1b3977c5367a0b713b194f369abd9872ae01ac2a)
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we already have space for this we just need to understand the length correctly).
Jeremy.
(This used to be commit 19145bae720bbcc32dcab380c62a33d1f0e3eef0)
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RPC code to merge with new passdb code.
Currently rpcclient doesn't compile. I'm working on it...
Jeremy.
(This used to be commit 0be41d5158ea4e645e93e8cd30617c038416e549)
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change to default break response time of 10ms -> 0ms.
Jeremy.
(This used to be commit 541c7df16fff03f98c253a46b501574cafb4469f)
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a byte range lock (write lock only, but Win2k breaks on read lock also so I
do the same) - if you think about why, this is obvious. Also fixed our client
code to do level II oplocks, if requested, and fixed the code where we would
assume the client wanted level II if it advertised itself as being level II
capable - it may not want that.
Jeremy.
(This used to be commit 213cd0b5192307cd4b0026cae94b2f52fb1b0c02)
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through the VFS. All file access/directory access code in smbd should now
go via the vfs. Added vfs_chown/vfs_chmod calls. Still looking at vfs_get_nt_acl()
vfs_set_nt_acl() call API design.
Jeremy.
(This used to be commit f96625ec124adb6e110dc54632e006b3620a962b)
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handling in Samba. This was needed due to several limitations and
races in the previous code - as a side effect the new code is much
cleaner :)
in summary:
- changed sys_select() to avoid a signal/select race condition. It is a
rare race but once we have signals doing notification and oplocks it
is important.
- changed our main processing loop to take advantage of the new
sys_select semantics
- split the notify code into implementaion dependent and general
parts. Added the following structure that defines an implementation:
struct cnotify_fns {
void * (*register_notify)(connection_struct *conn, char *path, uint32 flags);
BOOL (*check_notify)(connection_struct *conn, uint16 vuid, char *path, uint32 flags, void *data, time_t t);
void (*remove_notify)(void *data);
};
then I wrote two implementations, one using hash/poll (like our old
code) and the other using the new Linux kernel change notify. It
should be easy to add other change notify implementations by creating
a sructure of the above type.
- fixed a bug in change notify where we were returning the wrong error
code.
- rewrote the core change notify code to be much simpler
- moved to real-time signals for leases and change notify
Amazingly, it all seems to work. I was very surprised!
(This used to be commit 44766c39e0027c762bee8b33b12c621c109a3267)
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I had to modify sys_select() to not loop on EINTR. I added a wrapper
called sys_select_intr() which gives the old behaviour.
(This used to be commit b28cc4163bc2faaa80c5782fc02c8f03c410cdeb)
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(This used to be commit 3253085d9883a181c04b9c9ecf7d0ccdfbcee88d)
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modular form. In this pass I added oplock_irix.c and added a "struct
kernel_oplocks" that describes a kernel oplock implementation.
(This used to be commit b5ceab810292602ea9a81696c20a781c16b706c2)
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(This used to be commit 70dcc791b45ac64fc536ef449e4e6b53b2b68fd4)
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(This used to be commit 6b888d600d95e2595c3f79494edcc55e88e2980d)
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- added autoconf test for HAVE_KERNEL_OPLOCKS_LINUX
(This used to be commit 0368f68529a9244663c199068e95d1a1d93152fa)
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this adds "#define OLD_NTDOMAIN 1" in lots of places. Don't panic -
this isn't permanent, it should go after another few merge steps have
been done
(This used to be commit 92109d7b3c06f240452d39f669ecb8c9c86ab610)
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of doing a system call every time we want to just get our pid.
Jeremy.
(This used to be commit 148628b616b5c29ba6340d65fc3ddbcabba6e67a)
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fsp->open is no longer needed (if an fsp pointer is valid, then it's open :-).
NB for Luke, this patch also did not apply to TNG. TNG is not yet
identical w.r.t file serving with HEAD. This makes it impossible for
me to help maintain TNG. Please fix asap.
lib/substitute.c: Removed unused variable (pidstr).
Jeremy.
(This used to be commit 389b700a26e8a308a0dff6fc038c38068aa0119a)
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assumption that we have one socket everywhere
while doing so I discovered a few bugs!
1) the clientgen session retarget code if used from smbd or nmbd would
cause a crash as it called close_sockets() which closed our main
socket! fixed by removing close_sockets() completely - it is unnecessary
2) the caching in client_addr() and client_name() was bogus - it could
easily get fooled and give the wrong result. fixed.
3) the retarget could could recurse, allowing an easy denial of
service attack on nmbd. fixed.
(This used to be commit 5937ab14d222696e40a3fc6f0e6a536f2d7305d3)
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handling to printing/printing.c
most of this was just replacing things like fsp->fd_ptr->fd with fsp->fd
the changes in open.c are quite dramatic. Most of it is removing all
the functions that handled the fd multiplexing
(This used to be commit d1827a3648009fd0a0d165055015d9aeda7a1037)
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instead of either sysv or mmap shared memory or lock files.
this means we can now completely remove
locking_shm.c
locking_slow.c
shmem.c
shmem_sysv.c
and lots of other things also got simpler
locking.c got a bit larger, but is much better compartmentalised now
(This used to be commit e48c2d9937eea0667b8cd3332e49c06314ef31e7)
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(This used to be commit 453a822a76780063dff23526c35408866d0c0154)
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(This used to be commit e4d92ff9dfc51735e6932748f66a7c20b2c1cb6a)
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this....
Jeremy.
(This used to be commit 5287f3d19b7d8e76970f1ce1abfd95b7341434e5)
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