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* s3:unix_msg: add close_fd_array()Stefan Metzmacher2014-09-241-0/+14
| | | | | Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Michael Adam <obnox@samba.org>
* s3:unix_msg: use sendmsg() in unix_dgram_send_job()Stefan Metzmacher2014-09-241-3/+11
| | | | | | | This prepares fd-passing. Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Michael Adam <obnox@samba.org>
* s3:messaging: use struct initializers for 'struct messaging_rec'Stefan Metzmacher2014-09-242-12/+15
| | | | | | | | This makes sure new struct members will always be initialized, without explicitly finding all users. Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Michael Adam <obnox@samba.org>
* s3: reset tracepoint handler in reinit_after fork.Michael Adam2014-09-211-2/+5
| | | | | | | | | | This for instance fixes panics in the scavenger process due to talloc stackframes not freed in order. Pair-Programmed-With: Stefan Metzmacher <metze@samba.org> Signed-off-by: Michael Adam <obnox@samba.org> Signed-off-by: Stefan Metzmacher <metze@samba.org>
* lib: Add EMSGSIZE to map_nt_error_from_unixVolker Lendecke2014-09-181-0/+1
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Martin Schwenke <martin@meltin.net>
* ctdb_conn: Fix a small memory leak when releasing an IPVolker Lendecke2014-09-181-1/+2
| | | | | | | | We're exiting anyway, but when in the future we have multichannel this might actually be a small leak. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Martin Schwenke <martin@meltin.net>
* lib: Move tdb lock timeout fns to source3Volker Lendecke2014-09-181-0/+78
| | | | | | | | This is not the nicest code and needs to be replaced. Remove it from common. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Martin Schwenke <martin@meltin.net>
* Remove a few #ifdef EWOULDBLOCkVolker Lendecke2014-09-184-50/+4
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Martin Schwenke <martin@meltin.net>
* lib: Avoid a talloc in write_data_iovVolker Lendecke2014-09-171-9/+3
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* s3: utils: Don't directly manipulate errno inside strupper_m().Jeremy Allison2014-09-161-5/+1
| | | | | | | | | | | | | | Let the internal character conversion routines set it. Caller code paths don't depend on this (checked by David Disseldorp ddiss@suse.de). Bug 10775 - smbd crashes when accessing garbage filenames https://bugzilla.samba.org/show_bug.cgi?id=10775 Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: David Disseldorp <ddiss@samba.org>
* messaging_dgm: Don't expose the messaging_dgm_contextVolker Lendecke2014-09-143-37/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now we can only support one messaging_dgm_context per process anyway, the code has checks for this. I would like to keep it that way, in the future we will have multiple messaging_context's or imessaging_context's filtering based upon the dst server_id. Why this change? messaging_dgm's lockfile contains the serverid->unique_id. When designing messaging_dgm, I had in mind to remove the serverid.tdb and replace it with the dgm lockfiles for server lookup and enumeration. I have a WIP-patchset that gets rid of almost all users of serverid.tdb. The problem is serverid_exists. Here we don't have a messaging_context available, and it would be pretty intrusive to make it so. This problem has plagued us since ctdb was developed, see for example the comment /* * This is a Samba3 hack/optimization. Routines like process_exists need to * talk to ctdbd, and they don't get handed a messaging context. */ in messaging_ctdb.c. This patchset removes this problem in a radical way: Treat the messaging_dgm context as one globally available structure and be done with it. The ctdb socket could go the same way in the future. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org> Autobuild-User(master): Stefan Metzmacher <metze@samba.org> Autobuild-Date(master): Sun Sep 14 16:29:30 CEST 2014 on sn-devel-104
* messaging_dgm: Avoid a tallocVolker Lendecke2014-09-141-10/+10
| | | | | | | Not really required, but it removes a NULL check Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
* messaging_dgm: Avoid a tallocVolker Lendecke2014-09-141-7/+8
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
* messaging_dgm: messaging_dgm_lockfile_remove does not use tmp_ctx anymoreVolker Lendecke2014-09-141-3/+2
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
* messaging_dgm: messaging_dgm_lockfile_create does not use tmp_ctx anymoreVolker Lendecke2014-09-141-3/+2
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
* messaging_dgm: Avoid talloc_tos()Volker Lendecke2014-09-141-56/+55
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
* messaging_dgm: ReformattingVolker Lendecke2014-09-141-2/+1
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
* messaging_dgm: Remove an unnecessary castVolker Lendecke2014-09-141-2/+1
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
* messaging3: Avoid messaging_is_self_sendVolker Lendecke2014-08-231-9/+6
| | | | | | | | | | | This was a bad API, and it was used in a buggy way: In messaging_dispatch_rec we always did the defer, we referenced the destination pid, not the source. In messaging_send_iov this is the right thing to do to reference the destination, but when we have arrived in messaging_dispatch_rec we should compare source and destination. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* pthreadpool: Slightly serialize jobsVolker Lendecke2014-08-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | Using the new msg_source program with 1.500 instances against a single msg_sink I found the msg_source process to spawn two worker threads for synchronously sending the data towards the receiving socket. This should not happen: Per destination node we only create one queue. We strictly only add pthreadpool jobs one after the other, so a single helper thread should be perfectly sufficient. It turned out that under heavy overload the main sending thread was scheduled before the thread that just had finished its send() job. So the helper thread was not able to increment the pool->num_idle variable indicating that we don't have to create a new thread when the new job is added. This patch moves the signalling write under the mutex. This means that indicating readiness via the pipe and the pool->num_idle variable happen both under the same mutex lock and thus are atomic. No superfluous threads anymore. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging_dgm: Factor out messaging_dgm_lockfile_nameVolker Lendecke2014-08-221-9/+15
| | | | | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org> Autobuild-User(master): Jeremy Allison <jra@samba.org> Autobuild-Date(master): Fri Aug 22 05:20:43 CEST 2014 on sn-devel-104
* messaging_dgm: Use %ju to fill lockfileVolker Lendecke2014-08-221-1/+1
| | | | | | | | | ... much nicer than PRIu64 Also, append a \n. Makes it better readable when looking at the lockfile Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Don't print a message if there's nothing to clean upVolker Lendecke2014-08-211-2/+4
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Ronnie sahlberg <ronniesahlberg@gmail.com>
* lib: Check socket length in ctdbd_connectVolker Lendecke2014-08-211-1/+9
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Ronnie sahlberg <ronniesahlberg@gmail.com>
* messaging3: Include messages_dgm.h only in messages.cVolker Lendecke2014-08-121-0/+1
| | | | | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org> Autobuild-User(master): Jeremy Allison <jra@samba.org> Autobuild-Date(master): Tue Aug 12 02:21:32 CEST 2014 on sn-devel-104
* messaging3: Move messaging_hdr handling to messages.c.Volker Lendecke2014-08-113-68/+51
| | | | | | | | This makes messages_dgm a simple byte-transport across processes that knows almost nothing about server_id etc. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Only store the pid in messaging_dgm_contextVolker Lendecke2014-08-111-6/+4
| | | | | | | That's all we need here Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Save 48 bytes .textVolker Lendecke2014-08-111-5/+5
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* messaging3: Remove one-context protection from messages.cVolker Lendecke2014-08-111-22/+0
| | | | | | | messages_dgm.c takes care of it. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Protect messaging_dgm against multiple contextsVolker Lendecke2014-08-111-0/+14
| | | | | | | We can't rely on posix locking within a process Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Add messages_dgm.hVolker Lendecke2014-08-112-1/+47
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Pass on msg_type unmaskedVolker Lendecke2014-08-111-1/+1
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: I don't see 2 versions running concurrently...Volker Lendecke2014-08-111-2/+0
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Avoid "enum messaging_type" in messages_dgmVolker Lendecke2014-08-111-2/+1
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Pass dir_owner to messaging_dgm_init()Volker Lendecke2014-08-112-7/+8
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* messaging3: Pass cache_dir to messaging_dgm_init()Volker Lendecke2014-08-112-8/+5
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Move [un]become_root() calls out of messaging_dgm_send()Volker Lendecke2014-08-112-2/+3
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Move sec_init() call out of messaging_dgm_init()Volker Lendecke2014-08-112-2/+2
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Directly refer to messaging_dgm in messages.cVolker Lendecke2014-08-112-57/+27
| | | | | | | | | | | | | This removes the messaging_backend abstraction layer from messages_dgm.c. That layer was introduced for ctdb and is still used there. But as the messaging_dgm interface is very slim anyway, I don't think directly calling it is too bad. Why this commit? It is another step towards making messages_dgm independent of messages.[ch], thus it might become usable in other contexts like ctdb and source4 Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Add messaging_cleanupVolker Lendecke2014-08-111-0/+13
| | | | | | | | Rename smbcontrol's dgm-cleanup to msg-cleanup. We haven't published this UI yet :-) Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging_dgm: Remove unused "messaging_context"Volker Lendecke2014-08-112-6/+3
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Explicitly pass server_id to messaging_dgm_initVolker Lendecke2014-08-112-5/+7
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Explicitly pass tevent_context to messaging_dgm_initVolker Lendecke2014-08-112-4/+5
| | | | | | | One dependency less on messaging_context() Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging_dgm: Receive through a cb functionVolker Lendecke2014-08-112-14/+47
| | | | | | | This avoids calling messaging_dispatch_rec directly from messaging_dgm.c Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* messaging3: Fix an error path memleakVolker Lendecke2014-08-111-0/+1
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
* ctdbd_conn: Only poll if there's a timeoutVolker Lendecke2014-08-061-9/+11
| | | | | | | | | | | At this point the ctdb socket is blocking, so we can save a syscall when we wait indefinitely anyway. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Michael Adam <obnox@samba.org> Autobuild-User(master): Michael Adam <obnox@samba.org> Autobuild-Date(master): Wed Aug 6 18:01:54 CEST 2014 on sn-devel-104
* ctdbd_conn: Remove ctdb_packetVolker Lendecke2014-08-061-273/+0
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Michael Adam <obnox@samba.org>
* ctdbd_conn: Remove ctdb_packet dependencyVolker Lendecke2014-08-061-334/+219
| | | | | | | This was an early, failed attempt at async socket handling. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Michael Adam <obnox@samba.org>
* lib: Remove unused serverid_register_msg_flags()Volker Lendecke2014-07-311-55/+0
| | | | | Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Michael Adam <obnox@samba.org>
* unix_msg: simplify unix_msg_sendVolker Lendecke2014-07-281-12/+5
| | | | | | | | We have a variable array inside one-fragment fast path anyway. Moving that to the toplevel of the function saves us a malloc/free pair. Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
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