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path: root/source3/smbd/oplock.c
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2007-10-10r6234: Fix for possible root squash nfs bugs from psz@maths.usyd.edu.auJeremy Allison1-0/+6
Jeremy. (This used to be commit dbf021a2e04e74dd7f072c927a34043fd8c3ae30)
2007-10-10r6225: get rid of warnings from my compiler about nested externsHerb Lewis1-5/+3
(This used to be commit efea76ac71412f8622cd233912309e91b9ea52da)
2007-10-10r6172: Tidy up error processing significantly. Remove unix_ERR_XXX global ↵Jeremy Allison1-0/+3
nastyness. Jeremy. (This used to be commit d3379fe61bb934082b51a37adac232a96bafcf46)
2007-10-10r5014: Split out the request to send an async level II oplock break into aJeremy Allison1-17/+58
new function to make it clear when it's called. Remove async parameter that had been overloaded into request_oplock_break. Inspired by work from Nadav Danieli <nadavd@exanet.com>. Jeremy. (This used to be commit 05697fb50236dfc28e81f8b3900eac17cace57c1)
2007-10-10r5002: Ensure we can't remove a level II oplock without having theJeremy Allison1-17/+19
shared memory area locked. This need to be in 3.0.11. Pointed out by Nadav Danieli <nadavd@exanet.com>. Jeremy. (This used to be commit 47ed16aefbdcb6257101c6b78c93eeb7cf048185)
2007-10-10r4088: Get medieval on our ass about malloc.... :-). Take control of all our ↵Jeremy Allison1-2/+2
allocation functions so we can funnel through some well known functions. Should help greatly with malloc checking. HEAD patch to follow. Jeremy. (This used to be commit 620f2e608f70ba92f032720c031283d295c5c06a)
2007-10-10r1117: Doh ! Remember to turn off signing when sending a "break to level II" ↵Jeremy Allison1-1/+9
oplock message, or we mess up the signing sequence number.... Also improve sign error reporting. Also when deferring an open that had been deferred due to an oplock break, don't re-add the mid to the pending sign queue or we increment the sequence number twice and mess up signing again... I can now bounce between 2 WinXP/Win2003 boxes opening Excel spreadsheets with signing turned on and get correct "file in use" messages. Jeremy. (This used to be commit 1745ce4e2cf7fcb4c27c077973258d157cd241b1)
2007-10-10r1089: Removed spurious oplock message in deferred open processing.Jeremy Allison1-1/+1
Fix smb signing sequence counts. Jeremy. (This used to be commit 7e2a5c36614282b6bd50b60360f443549426dd4b)
2007-10-10r1085: Now it's had some proper user testing, merge in the deferred open ↵Jeremy Allison1-1/+69
fix. I'm still doing more testing, but it fixes a behaviour that we've been wrong on ever since the start of Samba. Jeremy. (This used to be commit 894cc6d16296b934c112786eec896846156aee5d)
2003-08-07An oplock break reply from the client causes the sequence number to beJeremy Allison1-4/+0
updated by 2 if there is no open reply outstanding, else by one.... Yes - this makes no sense.... Jeremy. (This used to be commit b43ce1ff6109f6422a621329ceb713b42df40040)
2003-08-07Turns out I had my packet sequences wrong for oplock break code.Jeremy Allison1-0/+4
I was storing the mid of the oplock break - I should have been storing the mid from the open. There are thus 2 types of deferred packet sequence returns - ones that increment the sequence number (returns from oplock causing opens) and ones that don't (change notify returns etc). Running with signing forced on does lead to some interesting tests :-). Jeremy. (This used to be commit 85907f02cec566502d9e4adabbd414020a26064d)
2003-08-02More fixes for client and server side signing. Ensure sequence numbersJeremy Allison1-0/+3
are updated correctly on returning an error for server trans streams. Ensure we turn off client trans streams on error. Jeremy. (This used to be commit 3a789cb7f01115c37404e5a696de363287cb0e5f)
2003-07-17Correctly toggle the signing state to what it was previosly when sendingJeremy Allison1-3/+8
an oplock break. Jeremy. (This used to be commit 9515de83a864250c417cf490b7be714c8e1e127e)
2003-07-16Add API framework for server SMB signing.Jeremy Allison1-1/+5
Jeremy. (This used to be commit 61fc9a7b2eafdf8cbed1f8d9aae016b828c91a08)
2003-04-22Tidyups of some dubious logic discovered whilst trying to track down aJeremy Allison1-6/+5
strange oplock related issue on the PSA. Jeremy. (This used to be commit 1dd274bf61aaaad3c475de93f53aac176678bc7c)
2003-01-30Fix for interesting resource constraint condition. When all opens areJeremy Allison1-15/+18
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 33e3e863eb7f35b852384e689f3272784261fc39)
2002-07-15updated the 3.0 branch from the head branch - ready for alpha18Andrew Tridgell1-26/+53
(This used to be commit 03ac082dcb375b6f3ca3d810a6a6367542bc23ce)
2002-04-11This split the mangling code up to allow for the possibility of multipleAndrew Tridgell1-0/+2
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)
2002-03-14Get the current directory after becoming root.Jeremy Allison1-1/+1
Jeremy. (This used to be commit f032c6f710cb0edcf02f25db81c83478b9a8ab1e)
2002-01-31Fix from Michael Steffens <michael_steffens@hp.com> to make signalJeremy Allison1-1/+1
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)
2002-01-30Removed version number from file header.Tim Potter1-2/+1
Changed "SMB/Netbios" to "SMB/CIFS" in file header. (This used to be commit 6a58c9bd06d0d7502a24bf5ce5a2faf0a146edfa)
2001-11-05Don't put a \n on the end of the arg to exit_server()Tim Potter1-2/+2
(This used to be commit dfb8566220c3e90ca2b757ea124f53aed103269e)
2001-10-23IRIX compiler dies not like casts in macro argsHerb Lewis1-1/+1
(This used to be commit 1b3123df48ca586b3d9c86a152354690836f6beb)
2001-10-20Move from timestamp to gen count file id's for finding oplocked filesJeremy Allison1-835/+784
in a tdb. Jeremy. (This used to be commit 058ae6b58f61ef46013dd076af3a84de5fbaaab1)
2001-10-18Merge the become_XXX -> change_to_XXX fixes from 2.2.2 to HEAD.Jeremy Allison1-2/+2
Ensure make_conection() can only be called as root. Jeremy. (This used to be commit 8d23a7441b4687458ee021bfe8880558506eddba)
2001-10-02Removed 'extern int DEBUGLEVEL' as it is now in the smb.h header.Tim Potter1-2/+0
(This used to be commit 2d0922b0eabfdc0aaf1d0797482fef47ed7fde8e)
2001-09-17move to SAFE_FREE()Simo Sorce1-6/+4
(This used to be commit a95943fde0ad89ae3f2deca2f7ba9cb5ab612b74)
2001-09-05Fix I think for the fcntl spinning problem. Re-prioritize soJeremy Allison1-0/+14
that oplock break messages get priority over incoming client messages. Jeremy. (This used to be commit 1779f6a223dad87c3b8451d09b9808b46495a8b6)
2001-09-04Fixes to ensure invalid vuids cannot stop oplock breaks.Jeremy Allison1-5/+7
This may have bearing on the Solaris fcntl spin bug. Jeremy. (This used to be commit 0f676202529cbfead629d2c228b7d5abc2dff7d6)
2001-08-22Fixed the (incorrect) paranioa fix I put in for the fcntl lock spin.Jeremy Allison1-2/+12
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)
2001-08-21This is Jeremy pretending to be Volker, 'cos theVolker Lendecke1-0/+13
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)
2001-06-25fixed usage of socklen_t and also tidied up SIG_ATOMIC_T, using a typedef ↵Andrew Tridgell1-1/+1
instead of a define (This used to be commit e2ecff419fdc0a0dc7551b33b377dc11061ef2a3)
2001-06-09*Wonderful* patch from Andrew Bartlett that will help ensure tdb's areJeremy Allison1-2/+4
cleaned on clients abending connections. Thanks Andrew ! Jeremy. (This used to be commit 1b3977c5367a0b713b194f369abd9872ae01ac2a)
2001-05-24Fixup the large_writex problem (a large_writex can send a full 64k of data,Jeremy Allison1-2/+2
we already have space for this we just need to understand the length correctly). Jeremy. (This used to be commit 19145bae720bbcc32dcab380c62a33d1f0e3eef0)
2001-03-11Merge of new 2.2 code into HEAD (Gerald I hate you :-) :-). Allows new SAMRJeremy Allison1-6/+0
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)
2001-01-30Fix inspited by Alan Romeril. 50% speedup in domain logins with thisJeremy Allison1-0/+3
change to default break response time of 10ms -> 0ms. Jeremy. (This used to be commit 541c7df16fff03f98c253a46b501574cafb4469f)
2000-11-16Ok - fixed a bug in our levelII oplock code. We need to break a level II onJeremy Allison1-4/+95
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)
2000-09-27Restructuring of the code to remove dos_ChDir/dos_GetWd and re-vector themJeremy Allison1-2/+2
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)
2000-06-12totally rewrote the async signal, notification and oplock notificationAndrew Tridgell1-26/+29
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)
2000-06-11Linux kernel oplocks now seem to work, but need a _lot_ of testingAndrew Tridgell1-0/+9
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)
2000-06-10a first pass at Linux kernel oplocks supportAndrew Tridgell1-13/+0
(This used to be commit 3253085d9883a181c04b9c9ecf7d0ccdfbcee88d)
2000-06-10continued the split of the kernel level oplocks code into a moreAndrew Tridgell1-377/+122
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)
2000-06-09clean up oplock capability code ready for Linux codeAndrew Tridgell1-152/+149
(This used to be commit 70dcc791b45ac64fc536ef449e4e6b53b2b68fd4)
2000-06-09split some of the irix kernel oplocks code into a functionAndrew Tridgell1-68/+74
(This used to be commit 6b888d600d95e2595c3f79494edcc55e88e2980d)
2000-06-08- changed HAVE_KERNEL_OPLOCKS to HAVE_KERNEL_OPLOCKS_IRIXAndrew Tridgell1-14/+14
- added autoconf test for HAVE_KERNEL_OPLOCKS_LINUX (This used to be commit 0368f68529a9244663c199068e95d1a1d93152fa)
2000-05-10more merging voodooAndrew Tridgell1-0/+4
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)
2000-05-02Added sys_fork() and sys_getpid() functions to stop the overheadJeremy Allison1-3/+3
of doing a system call every time we want to just get our pid. Jeremy. (This used to be commit 148628b616b5c29ba6340d65fc3ddbcabba6e67a)
2000-04-24Now that fsp's are created on successful file open, the structure memberJeremy Allison1-2/+2
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)
2000-04-11finally got sick of the "extern int Client" code and the stupidAndrew Tridgell1-7/+3
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)
2000-04-10the bulk of the changes to get rid of fd_ptr and move print openAndrew Tridgell1-27/+25
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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