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path: root/source3/smbd/blocking.c
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2007-10-10r22389: Start preparing for multiple encryption contexts in theJeremy Allison1-5/+7
server. Allow server to reflect back to calling client the encryption context that was sent. Jeremy. (This used to be commit b49e90335d1e589916b5ab4992e3c4a2d221ca7e)
2007-10-10r21879: Move process_blocking_lock_queue to a timed event.Volker Lendecke1-45/+71
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)
2007-10-10r21064: The core of this patch isVolker Lendecke1-6/+12
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)
2007-10-10r21062: Should fix the build plus make all refactoredJeremy Allison1-0/+17
functions return NTSTATUS. Jeremy. (This used to be commit 1f3c2b2abca6f1b3b59b73df038832e14106ff76)
2007-10-10r20237: Replace exit_server with exit_server_cleanly where appropriate. AllJames Peach1-3/+3
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)
2007-10-10r20124: clean up nested extern declaration warningsHerb Lewis1-1/+2
(This used to be commit ac3eb7813e33b9a2e78c9158433f7ed62c3b62bb)
2007-10-10r18605: sync dlinklist.h with samba4, that means DLIST_ADD_END()Stefan Metzmacher1-2/+2
and DLIST_DEMOTE() now take the type of the tmp pointer not the tmp pointer itself anymore. metze (This used to be commit 2f58645b7094e81dff3734f11aa183ea2ab53d2d)
2007-10-10r17541: When returning a trans2 request, if the "max dataJeremy Allison1-1/+2
bytes returned" is less than the amount we want to send, return what we can and set STATUS_BUFFER_OVERFLOW (doserror ERRDOS,ERRbufferoverflow). Required by OS/2 to handle EA's that are too large. It's hard to test this in Samba4 smbtorture as the max data bytes returned is hard coded at 0xffff (as it is in the Samba3 client libraries also). I used a custom version of Samba4 smbtorture to test this out. Might add a "max data bytes" param to make this testable in the build farm. Confirmed by "Guenter Kukkukk (sambaos2)" <sambaos2@kukkukk.com> and Andreas Taegener <atsamba11@eideltown.de> that this fixes the issue. Jeremy. (This used to be commit ff2f1202b76991a404dae8df17c36f8135c8dc51)
2007-10-10r17314: Optimisation for POSIX locking. If we're downgradingJeremy Allison1-1/+1
a POSIX lock (applying a read-lock) and we overlap pending read locks then send them an unlock message, we may have allowed them to proceed. Jeremy. (This used to be commit a7a0b6ba50f4cf7c5a0a29809fdff9e1266a29e7)
2007-10-10r17293: After the results from the cluster tests in Germany,Jeremy Allison1-3/+0
fix the messaging code to call the efficient calls : save_re_uid() set_effective_uid(0); messaging_op restore_re_uid(); instead of using heavyweight become_root()/unbecome_root() pairs around all messaging code. Fixup the messaging code to ensure sec_init() is called (only once) so that non-root processes still work when sending messages. This is a lighter weight solution to become_root()/unbecome_root() (which swaps all the supplemental groups) and should be more efficient. I will migrate all server code over to using this (a similar technique should be used in the passdb backend where needed). Jeremy. (This used to be commit 4ace291278d9a44f5c577bdd3b282c1231e543df)
2007-10-10r17105: Fix the race Volker found - we had a non-lockedJeremy Allison1-197/+64
region between detecting a pending lock was needed and when we added the blocking lock record. Make sure that we hold the lock over all this period. Removed the old code for doing blocking locks on SMB requests that never block (the old SMBlock and friends). Discovered something interesting about the strange NT_STATUS_FILE_LOCK_CONFLICT return. If we asked for a lock with zero timeout, and we got an error of NT_STATUS_FILE_LOCK_CONFLICT, treat it as though it was a blocking lock with a timeout of 150 - 300ms. This only happens when timeout is sent as zero and can be seen quite clearly in ethereal. This is the real replacement for old do_lock_spin() code. Re-worked the blocking lock select timeout to correctly use milliseconds instead of the old second level resolution (far too coarse for this work). Jeremy. (This used to be commit b81d6d1ae95a3d3e449dde629884b565eac289d9)
2007-10-10r17098: Samba3 now cleanly passes Samba4 RAW-LOCK tortureJeremy Allison1-38/+166
test. Phew - that was painful :-). But what it means is that we now implement lock cancels and I can add lock cancels into POSIX lock handling which will fix the fast/slow system call issue with cifsfs ! Jeremy. (This used to be commit f1a9cf075b87c76c032d19da0168424c90f6cb3c)
2007-10-10r16945: Sync trunk -> 3.0 for 3.0.24 code. Still needJeremy Allison1-20/+20
to do the upper layer directories but this is what everyone is waiting for.... Jeremy. (This used to be commit 9dafb7f48ca3e7af956b0a7d1720c2546fc4cfb8)
2007-10-10r15083: Using talloc with destructors is nice and all, but in thisJeremy Allison1-14/+14
case it's in a performace critical path and it *hurts* us. Go back to plain malloc/free with an explicit destructor call. Jeremy. (This used to be commit 1c99aed563c29e1b3d70939878af747a0660bfec)
2007-10-10r15018: Merge Volker's ipc/trans2/nttrans changes overJeremy Allison1-63/+214
into 3.0. Also merge the new POSIX lock code - this is not enabled unless -DDEVELOPER is defined. This doesn't yet map onto underlying system POSIX locks. Updates vfs to allow lock queries. Jeremy. (This used to be commit 08e52ead03304ff04229e1bfe544ff40e2564fc7)
2007-10-10r10656: BIG merge from trunk. Features not copied overGerald Carter1-11/+13
* \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 939c3cb5d78e3a2236209b296aa8aba8bdce32d3)
2007-10-10r7963: Add aio support to 3.0.Jeremy Allison1-6/+4
Jeremy. (This used to be commit 1de27da47051af08790317f5b48b02719d6b9934)
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)
2007-10-10r1980: Re-apply (remember to remove entry from list on delete this time :-).Jeremy Allison1-49/+25
Jeremy. (This used to be commit 275a0010f487a06b3bc86f82e45d08c821a51b0e)
2007-10-10r1978: Roll it back until I do it right.... :-).Jeremy Allison1-24/+49
Jeremy. (This used to be commit f16aa99f8c2f8a31f82e2aedfe3ea6a7276db504)
2007-10-10r1976: Simplify, use standard dlist interface.Jeremy Allison1-49/+24
Jeremy. (This used to be commit 776c28133dfa29320608829f15da2f1056454e4c)
2007-10-10r1154: Change default setting for case sensitivity to "auto". If set to autoJeremy Allison1-1/+1
then is the client supports it (current clients supported are Samba and CIFSVFS - detected by the negprot strings "Samba", "POSIX 2" and a bare "NT LM 0.12" string) then the setting of the per packet flag smb_flag FLAG_CASELESS_PATHNAMES is taken into account per packet. This allows the linux CIFS client to use Samba in a case sensitive manner. Additional command in smbclient "case_sensitive", toggles the flag in subsequent packets. Docs to follow. Jeremy. (This used to be commit cf84c0fe1a061acc0313f7db124b8f947cdf623d)
2003-10-21Patch from Stefan Metzmacher <metze@metzemix.de> to fix signing problemsJeremy Allison1-1/+1
when reverse connecting back to a client for printer notify. Jeremy. (This used to be commit 06aa434c3fdb139e3f3143d19413556945cbcd4f)
2003-10-10Ensure cancelling a blocking lock returns the correct error message.Jeremy Allison1-1/+1
Testing with Samba4 RAW-MUX code. Jeremy. (This used to be commit 533847c95d475921b0421ae113f52c44979939d2)
2003-10-09Changes to allow Samba3 to pass the Samba4 RAW-READ tests.Jeremy Allison1-6/+8
Jeremy. (This used to be commit e7565dbba696adbb0fd8cca6b86a1a7e5a655f2e)
2003-08-07Turns out I had my packet sequences wrong for oplock break code.Jeremy Allison1-1/+1
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)
2003-07-24Ensure everywhere we defer an incoming SMB request (blocking lock queue,Jeremy Allison1-248/+250
in oplock break state, change notify queue) we also push the MID onto the deferred signing queue. Tomorrow I will test this with valgrind and oplock tests. Jeremy. (This used to be commit 33a377f3726c85379ba5b962dd7c8ead337b892f)
2003-04-04Fix for very subtle POSIX lock interaction race condition found byJeremy Allison1-6/+6
Herb. We need to unlock POSIX locks before notifying pending lock processes. Jeremy. (This used to be commit 6999eef51c3e597b3b2cd9cc26138acdfbb6a23a)
2003-02-27Fix to allow blocking lock notification to be done rapidly (no waitJeremy Allison1-7/+71
for smb -> smb lock release). Adds new PENDING_LOCK type to lockdb (does not interfere with existing locks). Jeremy. (This used to be commit 766928bbba1e597c9c2b12458dd8d37e6080593e)
2002-12-03Fixed nasty bug where file writes with start offsets in the rangeJeremy Allison1-8/+8
0x80000000 -> 0xFFFFFFFF would fail as they were being cast from IVAL (uint32) to SMB_OFF_T (off_t or off64_t, both *signed* types). The sign extension would cause the offset to be treated as negative. Thanks to Herb for helping me track this one down (IRIX is good for large file tests :-). Jeremy. PS. That horrid EXEXIST thing has broken configure..... (This used to be commit 2d14c442bc601a277458b69f05a763aa2a1ab3b7)
2002-09-25sync'ing up for 3.0alpha20 releaseGerald Carter1-7/+27
(This used to be commit 65e7b5273bb58802bf0c389b77f7fcae0a1f6139)
2002-08-17Sync 3.0 branch with headJelmer Vernooij1-10/+13
(This used to be commit 42615b945e2e48e53a21ea47f2e45407913a6a1e)
2002-03-13include/smb_macros.h: Don't round up an allocation if the size is zero.Jeremy Allison1-3/+3
"One of these locks is not like the others... One of these locks is not quite the same" :-). When is a zero timeout lock not zero ? When it's being processed by Windows 2000 of course.. This code change, ugly though it is - completely fixes the foxpro/access multi-user file system database problems that people have been having. I used a *wonderful* test program donated by "Gerald Drouillard" <gerald@drouillard.ca> which allowed me to completely reproduce this problem, and to finally determine the correct fix. This also explains why Windows 2000 is *so slow* when responding to the smbtorture lock tests. I *love* it when all these things come together and finally make sense :-). Jeremy. (This used to be commit 8aa9860ea2ea7f5aed4b6aa12794fffdfa81b0d0)
2002-03-10failed timed locks always give LOCK_CONFLICT not LOCK_NOT_GRANTEDAndrew Tridgell1-0/+6
(This used to be commit ec71c1a66f9fd4b9cb4cad5a9b5b17e20de7aeb1)
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)
2001-10-18Merge the become_XXX -> change_to_XXX fixes from 2.2.2 to HEAD.Jeremy Allison1-5/+5
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 Potter1-1/+1
(This used to be commit 2d0922b0eabfdc0aaf1d0797482fef47ed7fde8e)
2001-09-17move to SAFE_FREE()Simo Sorce1-3/+3
(This used to be commit a95943fde0ad89ae3f2deca2f7ba9cb5ab612b74)
2001-08-30this was a stupid typo,Simo Sorce1-1/+1
thanks to Jochen Dolze (dolze@epcnet.de) for pointing out. (This used to be commit a554d5a99a03e6e8df7e946e5636f5ee80b21969)
2001-08-27started converting NTSTATUS to be a structure on systems with gcc in order ↵Andrew Tridgell1-4/+4
to make it type incompatible with BOOL so we catch errors sooner. This has already found a number of bugs (This used to be commit 1b778bc7d22efff3f90dc450eb12baa1241cf68f)
2001-08-27converted smbd to use NTSTATUS by defaultAndrew Tridgell1-243/+231
major changes include: - added NSTATUS type - added automatic mapping between dos and nt error codes - changed all ERROR() calls to ERROR_DOS() and many to ERROR_NT() these calls auto-translate to the client error code system - got rid of the cached error code and the writebmpx code We eventually will need to also: - get rid of BOOL, so we don't lose error info - replace all ERROR_DOS() calls with ERROR_NT() calls but that is too much for one night (This used to be commit 83d9896c1ea8be796192b51a4678c2a3b87f7518)
2001-07-02Fixed the nastiest locking bug to track down.... smb_pids are sent in theJeremy Allison1-4/+8
lockingX calls - use that instead of smb_pid in the packet. Jeremy. (This used to be commit a3925cb9c6303ce24e5fecad6c8f3a0ba78b9ee0)
2001-06-21next_token() was supposed to be a reentrant replacement for strtok(),Andrew Tridgell1-3/+6
but the code suffered from bitrot and is not now reentrant. That means we can get bizarre behaviour i've fixed this by making next_token() reentrant and creating a next_token_nr() that is a small non-reentrant wrapper for those lumps of code (mostly smbclient) that have come to rely on the non-reentrant behaviour (This used to be commit 674ee2f1d12b0afc164a9e9072758fd1c5e54df7)
2001-06-09*Wonderful* patch from Andrew Bartlett that will help ensure tdb's areJeremy Allison1-10/+12
cleaned on clients abending connections. Thanks Andrew ! Jeremy. (This used to be commit 1b3977c5367a0b713b194f369abd9872ae01ac2a)
2001-03-11Merge of new 2.2 code into HEAD (Gerald I hate you :-) :-). Allows new SAMRJeremy Allison1-4/+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)
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)
2000-05-04rpc_server/srv_lsa.c: Bring into sync with 2.0.x.Jeremy Allison1-2/+2
rpc_server/srv_pipe_hnd.c: Bring into sync with 2.0.x. smbd/blocking.c: Improve blocking debug reporting. utils/torture.c: Added check for NT locking bug. Jeremy. (This used to be commit e8ff6d3fb5537c39611a5784bf7216ae812acd27)
2000-04-11include/byteorder.h: ALIGN4/ALIGN2 macros.Jeremy Allison1-6/+6
include/includes.h: Added SMB_BIG_UINT_BITS. lib/util.c: Removed align2/align4 - use macros. libsmb/namequery.c: Use ALIGN2. locking/locking.c: Replace do_lock, do_unlock, args with SMB_BIG_UINT, not SMB_OFF_T. Needed to move to hiding POSIX locks at a lower layer. nmbd/nmbd_processlogon.c: Use ALIGN2/ALIGN4 macros. smbd/blocking.c: Replace do_lock, do_unlock, args with SMB_BIG_UINT, not SMB_OFF_T. smbd/reply.c: Replace do_lock, do_unlock, args with SMB_BIG_UINT, not SMB_OFF_T. Jeremy. (This used to be commit 491eea8a20bf80d426625479326211dc975857a6)
2000-04-11finally got sick of the "extern int Client" code and the stupidAndrew Tridgell1-3/+2
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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