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samba-mirror/source4/samba/process_model.h

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- we now specify the object files in the subsystems config.m4 file I plan to convert all objectfile group to use SMB_SUBSYSTEM later I'll add a SMB_BINARY() and SMB_LIBRARY(), then there will be no more need to touch Makefile.in, because all make rules will be autogenerated by configure - convert the PROCESS_MODEL subsystem to this new scheme and move the pthread test to smbd/process_model.m4 - convert the CHARSET subsystem to this new scheme and move the iconv test to lib/iconv.m4 (This used to be commit 2e57ee884ebea194ee79ac20e84e385481b56aa2)
2004-02-02 16:43:03 +03:00
/*
Unix SMB/CIFS implementation.
r5102: This is a major simplification of the logic for controlling top level servers in smbd. The old code still contained a fairly bit of legacy from the time when smbd was only handling SMB connection. The new code gets rid of all of the smb_server specific code in smbd/, and creates a much simpler infrastructures for new server code. Major changes include: - simplified the process model code a lot. - got rid of the top level server and service structures completely. The top level context is now the event_context. This got rid of service.h and server.h completely (they were the most confusing parts of the old code) - added service_stream.[ch] for the helper functions that are specific to stream type services (services that handle streams, and use a logically separate process per connection) - got rid of the builtin idle_handler code in the service logic, as none of the servers were using it, and it can easily be handled by a server in future by adding its own timed_event to the event context. - fixed some major memory leaks in the rpc server code. - added registration of servers, rather than hard coding our list of possible servers. This allows for servers as modules in the future. - temporarily disabled the winbind code until I add the helper functions for that type of server - added error checking on service startup. If a configured server fails to startup then smbd doesn't startup. - cleaned up the command line handling in smbd, removing unused options (This used to be commit cf6a46c3cbde7b1eb1b86bd3882b953a2de3a42e)
2005-01-30 03:54:57 +03:00
process model manager - structures
Copyright (C) Andrew Tridgell 1992-2005
- we now specify the object files in the subsystems config.m4 file I plan to convert all objectfile group to use SMB_SUBSYSTEM later I'll add a SMB_BINARY() and SMB_LIBRARY(), then there will be no more need to touch Makefile.in, because all make rules will be autogenerated by configure - convert the PROCESS_MODEL subsystem to this new scheme and move the pthread test to smbd/process_model.m4 - convert the CHARSET subsystem to this new scheme and move the iconv test to lib/iconv.m4 (This used to be commit 2e57ee884ebea194ee79ac20e84e385481b56aa2)
2004-02-02 16:43:03 +03:00
Copyright (C) James J Myers 2003 <myersjj@samba.org>
r4728: split up server_services into: - stream_socket services the smb, ldap and rpc service which sets up a srtam socket end then waits for connections and - task services which this you can create a seperate task that do something (this is also going through the process_model subsystem so with -M standard a new process for this created with -M thread a new thread ... I'll add datagram services later when we whave support for datagram sockets in lib/socket/ see the next commit as an example for service_task's metze (This used to be commit d5fa02746c6569b09b6e05785642da2fad3ba3e0)
2005-01-14 04:32:56 +03:00
Copyright (C) Stefan (metze) Metzmacher 2004-2005
- we now specify the object files in the subsystems config.m4 file I plan to convert all objectfile group to use SMB_SUBSYSTEM later I'll add a SMB_BINARY() and SMB_LIBRARY(), then there will be no more need to touch Makefile.in, because all make rules will be autogenerated by configure - convert the PROCESS_MODEL subsystem to this new scheme and move the pthread test to smbd/process_model.m4 - convert the CHARSET subsystem to this new scheme and move the iconv test to lib/iconv.m4 (This used to be commit 2e57ee884ebea194ee79ac20e84e385481b56aa2)
2004-02-02 16:43:03 +03:00
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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)
2007-07-10 06:07:03 +04:00
the Free Software Foundation; either version 3 of the License, or
- we now specify the object files in the subsystems config.m4 file I plan to convert all objectfile group to use SMB_SUBSYSTEM later I'll add a SMB_BINARY() and SMB_LIBRARY(), then there will be no more need to touch Makefile.in, because all make rules will be autogenerated by configure - convert the PROCESS_MODEL subsystem to this new scheme and move the pthread test to smbd/process_model.m4 - convert the CHARSET subsystem to this new scheme and move the iconv test to lib/iconv.m4 (This used to be commit 2e57ee884ebea194ee79ac20e84e385481b56aa2)
2004-02-02 16:43:03 +03:00
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
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)
2007-07-10 06:07:03 +04:00
along with this program. If not, see <http://www.gnu.org/licenses/>.
- we now specify the object files in the subsystems config.m4 file I plan to convert all objectfile group to use SMB_SUBSYSTEM later I'll add a SMB_BINARY() and SMB_LIBRARY(), then there will be no more need to touch Makefile.in, because all make rules will be autogenerated by configure - convert the PROCESS_MODEL subsystem to this new scheme and move the pthread test to smbd/process_model.m4 - convert the CHARSET subsystem to this new scheme and move the iconv test to lib/iconv.m4 (This used to be commit 2e57ee884ebea194ee79ac20e84e385481b56aa2)
2004-02-02 16:43:03 +03:00
*/
r14380: Reduce the size of structs.h (This used to be commit 1a16a6f1dfa66499af43a6b88b3ea69a6a75f1fe)
2006-03-14 18:03:25 +03:00
#ifndef __PROCESS_MODEL_H__
#define __PROCESS_MODEL_H__
r5304: removed lib/socket/socket.h from includes.h (This used to be commit b902ea546d2d1327b23f40ddaeeaa8e7e3662454)
2005-02-10 09:59:29 +03:00
#include "lib/socket/socket.h"
s4: rename source4/smbd/ to source4/samba/ Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Autobuild-User(master): Ralph Böhme <slow@samba.org> Autobuild-Date(master): Fri Nov 27 10:07:18 UTC 2020 on sn-devel-184
2020-11-20 17:27:17 +03:00
#include "samba/service.h"
#include "samba/process_model_proto.h"
r5304: removed lib/socket/socket.h from includes.h (This used to be commit b902ea546d2d1327b23f40ddaeeaa8e7e3662454)
2005-02-10 09:59:29 +03:00
- we now specify the object files in the subsystems config.m4 file I plan to convert all objectfile group to use SMB_SUBSYSTEM later I'll add a SMB_BINARY() and SMB_LIBRARY(), then there will be no more need to touch Makefile.in, because all make rules will be autogenerated by configure - convert the PROCESS_MODEL subsystem to this new scheme and move the pthread test to smbd/process_model.m4 - convert the CHARSET subsystem to this new scheme and move the iconv test to lib/iconv.m4 (This used to be commit 2e57ee884ebea194ee79ac20e84e385481b56aa2)
2004-02-02 16:43:03 +03:00
/* modules can use the following to determine if the interface has changed
* please increment the version number after each interface change
* with a comment and maybe update struct process_model_critical_sizes.
*/
/* version 1 - initial version - metze */
#define PROCESS_MODEL_VERSION 1
/* the process model operations structure - contains function pointers to
the model-specific implementations of each operation */
struct model_ops {
/* the name of the process_model */
const char *name;
/* called at startup when the model is selected */
s4-smbd: don't initialise process models more than once this also removes the event_context parameter from process model initialisation. It isn't needed, and is confusing when a process model init can be called from more than one place, possibly with different event contexts. Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
2010-10-30 04:24:15 +04:00
void (*model_init)(void);
- we now specify the object files in the subsystems config.m4 file I plan to convert all objectfile group to use SMB_SUBSYSTEM later I'll add a SMB_BINARY() and SMB_LIBRARY(), then there will be no more need to touch Makefile.in, because all make rules will be autogenerated by configure - convert the PROCESS_MODEL subsystem to this new scheme and move the pthread test to smbd/process_model.m4 - convert the CHARSET subsystem to this new scheme and move the iconv test to lib/iconv.m4 (This used to be commit 2e57ee884ebea194ee79ac20e84e385481b56aa2)
2004-02-02 16:43:03 +03:00
/* function to accept new connection */
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 $f done done metze
2008-12-29 22:24:57 +03:00
void (*accept_connection)(struct tevent_context *,
r26672: Janitorial: Remove uses of global_loadparm. (This used to be commit 18cd08623eaad7d2cd63b82ea5275d4dfd21cf00)
2008-01-06 04:03:43 +03:00
struct loadparm_context *,
struct socket_context *,
s4:lib/tevent: rename structs list="" list="$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 22:24:57 +03:00
void (*)(struct tevent_context *,
r26672: Janitorial: Remove uses of global_loadparm. (This used to be commit 18cd08623eaad7d2cd63b82ea5275d4dfd21cf00)
2008-01-06 04:03:43 +03:00
struct loadparm_context *,
struct socket_context *,
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>
2017-09-14 22:09:23 +03:00
struct server_id , void *, void *),
void *, void *);
r1486: commit the start of the generic server infastructure the idea is to have services as modules (smb, dcerpc, swat, ...) the process_model don't know about the service it self anymore. TODO: - the smbsrv should use the smbsrv_send function - the service subsystem init should be done like for other modules - we need to have a generic socket subsystem, which handle stream, datagram, and virtuell other sockets( e.g. for the ntvfs_ipc module to connect to the dcerpc server , or for smb or dcerpc or whatever to connect to a server wide auth service) - and other fixes... NOTE: process model pthread seems to be broken( but also before this patch!) metze (This used to be commit bbe5e00715ca4013ff0dbc345aa97adc6b5c2458)
2004-07-14 01:04:56 +04:00
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)
2005-01-30 05:55:30 +03:00
/* function to create a task */
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 22:24:57 +03:00
void (*new_task)(struct tevent_context *,
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 08:32:42 +04:00
struct loadparm_context *lp_ctx,
Remaining changes to implement the prefork process model To use, run 'smbd -M prefork' By default, only the smb service is preforked. 4 children are created, and all listen for new connections. The Linux Kernel 'wake one' behaviour should ensure that only one is given the oportunity to accept. We need to look into the ideal number of worker children, as well as load balancing behaviours. To change, set: prefork children : smb = 6 valid service names (smb in this example) match those in 'server services'. Andrew Bartlett and David Disseldorp (This used to be commit 35313c0aa3fbfdd943edfb7bafd7645b1a0c54e9)
2008-02-04 09:59:16 +03:00
const char *service_name,
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>
2018-08-23 00:35:52 +03:00
struct task_server * (*)(struct tevent_context *,
r26672: Janitorial: Remove uses of global_loadparm. (This used to be commit 18cd08623eaad7d2cd63b82ea5275d4dfd21cf00)
2008-01-06 04:03:43 +03:00
struct loadparm_context *, struct server_id,
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>
2017-09-14 22:09:23 +03:00
void *, void *),
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
2017-08-21 22:58:14 +03:00
void *,
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>
2017-09-14 22:09:23 +03:00
const struct service_details*,
const int);
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)
2005-01-30 05:55:30 +03:00
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>
2018-09-04 03:12:49 +03:00
/* function to terminate a task */
void (*terminate_task)(struct tevent_context *,
struct loadparm_context *lp_ctx,
const char *reason,
bool fatal,
void *process_context);
/* function to terminate a connection */
void (*terminate_connection)(struct tevent_context *,
struct loadparm_context *lp_ctx,
const char *reason,
void *process_context);
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)
2005-01-30 05:55:30 +03:00
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)
2006-03-09 20:48:41 +03:00
/* function to set a title for the connection or task */
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 22:24:57 +03:00
void (*set_title)(struct tevent_context *, const char *title);
- we now specify the object files in the subsystems config.m4 file I plan to convert all objectfile group to use SMB_SUBSYSTEM later I'll add a SMB_BINARY() and SMB_LIBRARY(), then there will be no more need to touch Makefile.in, because all make rules will be autogenerated by configure - convert the PROCESS_MODEL subsystem to this new scheme and move the pthread test to smbd/process_model.m4 - convert the CHARSET subsystem to this new scheme and move the iconv test to lib/iconv.m4 (This used to be commit 2e57ee884ebea194ee79ac20e84e385481b56aa2)
2004-02-02 16:43:03 +03:00
};
/* this structure is used by modules to determine the size of some critical types */
struct process_model_critical_sizes {
int interface_version;
int sizeof_model_ops;
};
r13924: Split more prototypes out of include/proto.h + initial work on header file dependencies (This used to be commit 122835876748a3eaf5e8d31ad1abddab9acb8781)
2006-03-07 14:07:23 +03:00
r24937: Merge tests spoolss RPC callbacks. (This used to be commit 9b256a0ca232ea6e89771bf73a1adf877273a752)
2007-09-03 17:13:25 +04:00
extern const struct model_ops single_ops;
s4-smbd: don't initialise process models more than once this also removes the event_context parameter from process model initialisation. It isn't needed, and is confusing when a process model init can be called from more than one place, possibly with different event contexts. Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
2010-10-30 04:24:15 +04:00
const struct model_ops *process_model_startup(const char *model);
s4-server: cleanup allocation of process models Autobuild-User: Andrew Tridgell <tridge@samba.org> Autobuild-Date: Wed Nov 3 10:40:52 UTC 2010 on sn-devel-104
2010-11-03 12:57:38 +03:00
NTSTATUS register_process_model(const struct model_ops *ops);
Install public header files again and include required prototypes. (This used to be commit 47ffbbf67435904754469544390b67d34c958343)
2008-04-02 06:53:27 +04:00
NTSTATUS process_model_init(struct loadparm_context *lp_ctx);
r14380: Reduce the size of structs.h (This used to be commit 1a16a6f1dfa66499af43a6b88b3ea69a6a75f1fe)
2006-03-14 18:03:25 +03:00
#endif /* __PROCESS_MODEL_H__ */
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