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38 Commits

Author SHA1 Message Date
Gary Lockyer
6c850b77c4 source4 smbd prefork: restart on non zero exit code
Restart any pre-fork master or worker process that exits with a non
zero exit code.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-11-23 08:25:19 +01:00
Gary Lockyer
3315a28ea9 source4 smbd process: pass the fatal flag to terminate
Pass the fatal flag supplied to task_server_terminate to the process
task_terminate method.  It will be used by the task_terminate methods to
set an appropriate exit code.  The process_prefork model will use a non
zero exit code to indicate that the process should be restarted.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-11-23 08:25:19 +01:00
Gary Lockyer
99aea42520 source4 smdb: Add a post fork hook to the service API
Add a post fork hook to the service API this will be called:

 - standard process model
   immediately after the task_init.

- single process model
  immediately after the task_init

- prefork process model, inhibit_pre_fork = true
  immediately after the task_init

- prefork process model, inhibit_pre_fork = false
  after each service worker has forked. It is not run on the service
  master process.

The post fork hook is not called in the standard model if a new process
is forked on a new connection. It is instead called immediately after
the task_init.

The task_init hook has been changed to return an error code. This ensures
the post_fork code is only run if the task_init code completed successfully.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
2018-11-01 23:49:24 +01:00
Gary Lockyer
ea0cd977a3 source4/smbd: replace DEBUG( with DBG_
Update the debug logging to use the currently preferred debug macros

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
2017-10-19 05:33:10 +02:00
Gary Lockyer
b852ad044b source4/smbd: refactor the process model for prefork
Refactor the process model code to allow the addition of a prefork
    process model.

    - Add a process context to contain process model specific state
    - Add a service details structure to allow service to indicate which
      process model options they can support.

    In the new code the services advertise the features they support to the
    process model.  The process model context is plumbed through to allow the
    process model to keep track of the supported options, and any state
    the process model may require.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
2017-10-19 05:33:09 +02:00
Gary Lockyer
099df25f56 source4 smbd: remove global control pipe from process_standard.
The standard model uses a pipe to signal the worker processes spawned on
accept that the controlling process has terminated and that they should
shut down.  This pipe is currently a static global variable in
process_standard.c.

This patch replaces that global pipe with a file descriptor passed into
the process model init functions, giving  a single mechanism across all process
models.  This paves the way for the addition of a pre-fork process model.

Ensuring that the correct file descriptors are closed, is difficult so
it is best do this only once rather than require the process models to
do this individually.

Notes on debugging pipe ownership:

Add code to log the process id and the file descriptor of the writeable
pipe.

run:
   lsof | grep FIFO | grep samba | grep <process id>
   this will produce lines like:

   samba 25624 him 4w FIFO 0,10 0t0 472206 pipe

   where: 4w is the file descriptor and mode and the number to the left
          of "pipe" is the pipe id.
then:
   lsof | grep FIFO | grep samba | grep <pipe id>

   This will display all the processes with the pipe open and the mode
   only the smbd master process should have it open in write mode.

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Thu Sep 28 02:08:34 CEST 2017 on sn-devel-144
2017-09-28 02:08:34 +02:00
Jeremy Allison
da47e13323 s4: messaging: Remove bool auto_remove parameter from imessaging_init().
With modern messaging this doesn't do anything (it's an
empty destructor). Clean up so we can add a proper destructor
in future.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-07-23 06:04:11 +02:00
Andrew Bartlett
ed48c70b90 s4:service_task: explicitly use dcerpc_binding_handle_set_sync_ev() for irpc
This indicates that we're using nested event loops...

Andrew Bartlett

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

Change-Id: I7e147850566301a5ef2354b8615a044d121968b5
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
2014-05-13 00:08:12 +02:00
Stefan Metzmacher
bb3238b46f s4:service_task: add missing imessaging_cleanup() to task_server_terminate()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Sun Jan 27 15:50:30 CET 2013 on sn-devel-104
2013-01-27 15:50:30 +01:00
Stefan Metzmacher
431692df42 s4:service_task: prevent a segfault if task->msg_ctx is not initialized yet
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-01-27 12:23:01 +01:00
Andrew Bartlett
3cdb1fe440 s4-messaging: Pass the loadparm context, not just the messaging path
This will allow the TDB layer to get at the lp_ctx for tdb options.

Andrew Bartlett
2011-10-13 14:06:07 +02:00
Andrew Tridgell
2d21fe079f s4-messaging: fixed the removal of messaging sockets in child tasks
when a child task exits we were firing a destructor on any inherited
messaging contexts, which could trigger a removal of the parents
message socket and messaging database entry.

This adds a new auto_remove flag to imessaging_init(), and exposes the
cleanup code for use by the stream service.

Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>

Autobuild-User: Andrew Tridgell <tridge@samba.org>
Autobuild-Date: Fri Jul 22 08:09:06 CEST 2011 on sn-devel-104
2011-07-22 08:09:06 +02:00
Andrew Bartlett
cdd802af83 s4-messaging Rename messaging -> imessaging
This avoid symbol and structure conflicts between Samba3 and Samba4,
and chooses a less generic name.

Andrew Bartlett
2011-05-03 07:37:07 +02:00
Andrew Tridgell
ea223baabc s4-server: check the return of irpc_binding_handle_by_name
Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
2010-09-15 15:39:36 +10:00
Stefan Metzmacher
e117177307 s4:smbd/service_task: use irpc_binding_handle_by_name()
metze
2010-09-03 17:00:20 +02:00
Andrew Tridgell
6b266b85cf s4-loadparm: 2nd half of lp_ to lpcfg_ conversion
this converts all callers that use the Samba4 loadparm lp_ calling
convention to use the lpcfg_ prefix.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2010-07-16 18:24:27 +10:00
Jelmer Vernooij
f9ca9e46ad Finish removal of iconv_convenience in public API's. 2010-05-18 11:45:30 +02:00
Andrew Tridgell
72c60db126 s4-smbd: removed unnecessary includes 2009-09-19 14:11:58 -07:00
Andrew Tridgell
e9a589feac s4-server: kill main daemon if a task fails to initialise
When one of our core tasks fails to initialise it can now ask for the
server as a whole to die, rather than limping along in a degraded
state.
2009-09-18 18:05:55 -07:00
Stefan Metzmacher
29cc638c2c s4:smbd: s/private/private_data
metze
2009-02-02 13:08:36 +01:00
Stefan Metzmacher
47d532fa68 s4:smbd: convert to tevent_* api
metze
2009-01-03 19:58:57 +01:00
Stefan Metzmacher
183c379fe5 s4:lib/tevent: rename structs
list=""
list="$list event_context:tevent_context"
list="$list fd_event:tevent_fd"
list="$list timed_event:tevent_timer"

for s in $list; do
	o=`echo $s | cut -d ':' -f1`
	n=`echo $s | cut -d ':' -f2`
	r=`git grep "struct $o" |cut -d ':' -f1 |sort -u`
	files=`echo "$r" | grep -v source3 | grep -v nsswitch | grep -v packaging4`
	for f in $files; do
		cat $f | sed -e "s/struct $o/struct $n/g" > $f.tmp
		mv $f.tmp $f
	done
done

metze
2008-12-29 20:46:40 +01:00
Jelmer Vernooij
2ba4a79210 Eliminate another global_loadparm. 2008-09-30 03:20:46 +02:00
Andrew Bartlett
23d681caf9 Rework service init functions to pass down service name. This is
needed to change prefork behaviour based on what service is being
started.

Andrew Bartlett and David Disseldorp
(This used to be commit 0d830580e3539c96da3aa6c72fafe6eacd7a74a0)
2008-02-04 17:48:51 +11:00
Jelmer Vernooij
df408d056e r26672: Janitorial: Remove uses of global_loadparm.
(This used to be commit 18cd08623eaad7d2cd63b82ea5275d4dfd21cf00)
2008-01-05 13:06:03 -06:00
Jelmer Vernooij
84b4763947 r26441: Remove global_loadparm uses.
(This used to be commit 32007c6277efa46341da7741b749a98633d71640)
2007-12-21 05:50:09 +01:00
Jelmer Vernooij
f4a1083cf9 r26227: Make loadparm_context part of a server task, move loadparm_contexts further up the call stack.
(This used to be commit 0721a07aada6a1fae6dcbd610b8783df57d7bbad)
2007-12-21 05:47:04 +01:00
Jelmer Vernooij
2f3551ca7c r25446: Merge some changes I made on the way home from SFO:
2007-09-29 More higher-level passing around of lp_ctx.
2007-09-29 Fix warning.
2007-09-29 Pass loadparm contexts on a higher level.
2007-09-29 Avoid using global loadparm context.
(This used to be commit 3468952e771ab31f90b6c374ade01c5550810f42)
2007-10-10 15:07:34 -05:00
Andrew Bartlett
3c097f3afb r23960: Don't destory the 'reason' for terminating the service before printing it.
Andrew Bartlett
(This used to be commit 18d2680f357cef68e0e9714ce5404be70759d2ad)
2007-10-10 15:01:11 -05:00
Andrew Tridgell
0479a2f1cb r23792: convert Samba4 to GPLv3
There are still a few tidyups of old FSF addresses to come (in both s3
and s4). More commits soon.
(This used to be commit fcf38a38ac691abd0fa51b89dc951a08e89fdafa)
2007-10-10 14:59:12 -05:00
Andrew Tridgell
1cd4339b9a r20646: first preparations for cluster enablement. This changes "
uint32_t server_id
to
  struct server_id server_id;

which allows a server ID to have an node number. The node number will
be zero in non-clustered case. This is the most basic hook needed for
clustering, and ctdb.
(This used to be commit 2365abaa991d57d68c6ebe9be608e01c907102eb)
2007-10-10 14:37:23 -05:00
Stefan Metzmacher
651ca6553e r14079: I just found the setproctitle library from alt linux:-)
- add set_title hook to the process models
- use setproctitle library in process_model standard if available
- the the title for the task servers and on connections

metze
(This used to be commit 526f20bbecc9bbd607595637c15fc4001d3f0c70)
2007-10-10 13:56:49 -05:00
Andrew Tridgell
b3e493470f r7911: task_terminate() is defined in the macosx headers, so change the name
to task_server_terminate()
(This used to be commit a7447e25ac203f0ee09ffdf72df1094eb70e7c0c)
2007-10-10 13:18:48 -05:00
Andrew Tridgell
bf1ffa283c r7294: implemented the irpc messaging system. This is the core of the
management system I proposed on samba-technical a couple of days
ago. Essentially it is a very lightweight way for any code in Samba to
make IDL based rpc calls to anywhere else in the code, without the
client or server having to go to the trouble of setting up a full rpc
service.

It can be used with any of our existing IDL, but I expect it will
mostly be used for a new set of Samba specific management calls.

The LOCAL-IRPC torture test demonstrates how it can be used by calling
the echo_AddOne() call over this transport.
(This used to be commit 3d589a09954eb8b318f567e1150b0c27412fb942)
2007-10-10 13:17:37 -05:00
Andrew Tridgell
4c7c38e930 r5411: make network interface selection a bit saner
- if we have no configured network interfaces, then don't start nbtd (when I add dynamic
  interface loading this will change to a delay until a network interface comes up)

- choose the best interface by netmask for torture tests that need a
  specific IP (such as the WINS test). Added iface_best_ip() for that.

- if specific interfaces are chosen in smb.conf, then keep that ordering, and
  default to the first one listed
(This used to be commit 4d08c114079ef6d1d10a96195046fe43631aefa2)
2007-10-10 13:10:43 -05:00
Andrew Tridgell
131dc76d56 r5197: moved events code to lib/events/ (suggestion from metze)
(This used to be commit 7f54c8a339f36aa43c9340be70ab7f0067593ef2)
2007-10-10 13:09:30 -05:00
Stefan Metzmacher
65db148d87 r5141: fix compiler warnings
metze
(This used to be commit 12b0841b30fdb6d7ba8c3dc9991c172f7fb3d31f)
2007-10-10 13:09:26 -05:00
Andrew Tridgell
1447b9a8c1 r5104: - added support for task based servers. These are servers that within
themselves are run as a single process, but run as a child of the
  main process when smbd is run in the standard model, and run as part
  of the main process when in the single mode.

- rewrote the winbind template code to use the new task services. Also
  fixed the packet queueing

- got rid of event_context_merge() as it is no longer needed
(This used to be commit 339964a596689278d2138cff05d7d444798a3504)
2007-10-10 13:09:23 -05:00