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In some cases (containers mainly) /var/run may not be present. Instead of
erroring, we should create it at startup.
Signed-off-by: William Brown <william@blackhats.net.au>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Every caller did a talloc_steal() after socket_create(). Just pass in the
correct memory context.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Jan 1 19:19:22 CET 2018 on sn-devel-144
Commit 8736013dc4 got the (confusing) sense of opt_fork
wrong.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13129
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Dec 19 11:24:29 CET 2017 on sn-devel-144
error: implicit declaration of function ‘getpgrp’; did you mean ‘getpt’?
[-Werror=implicit-function-declaration]
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
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>
Add a pre fork process model to bound the number processes forked by
samba. Currently workers are only pre-forked for the ldap server, all
the other services have pre-fork support disabled.
When pre-fork support is disabled a new process is started for each
service, and requests are processed by that process.
This commit partially reverts commit
b5be45c453.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Fix code formatting from the refactoring in the previous commits.
Done as a separate patch to make the changes to functionality easier
to review.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This allows the service to control if it should fork per accept() without needing
to replace the whole process model with process_single.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
This avoids cleaning up on error from accept() but more importantly
allows a future mode that acts like process_single and so has no child.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Use the new process_context to control the from_parent_fd
This avoids the use of global variables, and will in the next patch
allow process_standard to run as what was known as single without
over-stamping a different process model.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
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>
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
Set the process title in the samba root process to clearly identify it
in ps output.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Call setproctitle_init() in main which suppresses the
"samba: setproctitle not initialized, please either call
setproctitle_init() or link against libbsd-ctor."
messages, but more importantly it displays meaningful details in ps
output.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=9816
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Set the process group in the samba daemon, the --no-process-group option
allows this to be disabled. The no-process-group option needs to be
disabled in self test.
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): Mon Sep 18 04:39:50 CEST 2017 on sn-devel-144
This sometimes would show up as corrupted bytes during logs. Hammering
the LDAP server enough times managed to trigger an outright segfault.
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Use the passed in context from callers. Remove one
talloc_autofree_context().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
This makes sure we remove any messaging sockets if a child dies or calls exit()
without running the talloc destructor for messaging
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Not currently used - no logic changes inside.
This will make it possible to pass down a long-lived talloc
context from the loading function for modules to use instead
of having them internally all use talloc_autofree_context()
which is a hidden global.
Updated all known module interface numbers, and added a
WHATSNEW.
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Ralph Böhme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Apr 22 01:17:00 CEST 2017 on sn-devel-144
Ensure it's freed on all error paths.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Apr 17 23:10:06 CEST 2017 on sn-devel-144
Use state->event_ctx as the parent of the initial imessaging context.
Now we control all exit paths, we can call TALLOC_FREE(state)
on all of them.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Defensive programming change. Not strictly needed to prevent
any crash/error.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Simplify by removing global state we don't need now
we're called by tevent (and in the short window where
we're installed by CatchSignal but before we install
the tevent handler we don't need the complex global
state handling as we have no forked children).
We now have access to struct server_state on all
exit paths - next commits will stop using talloc autofree context.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Use it in the message print to avoid a "unused variable" compile error.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
No logic changes, will be used to move allocated
pointers off the talloc autofree context in a later commit.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Allows us to be independent of parent SIGTERM signal handling.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Sat Apr 8 16:21:57 CEST 2017 on sn-devel-144
In the NTVFS server we have the following talloc heirarchy:
event_ctx
|
---------------------------------------------------- .. other children
| | |
msg_dgm_ref srv_conn msg_dgm_ref
^ |
| NTVFS structures
| |
| XXXXXX
| |
| |
--------------------- pointer to msg_dgm_ref
Some of the structures under NTVFS （marked XXXXX) can have
pointers to imessaging contexts which internally have pointers
to msg_dgm_ref structurs allocated off event_ctx.
The original code calls:
model_ops->terminate(event_ctx, srv_conn->lp_ctx, reason);
talloc_free(srv_conn);
But model_ops->terminate() calls talloc_free(event_ctx) and
then calls exit(). In this case srv_conn is never explicitly
freed, but only freed as a talloc child of the event_ctx.
Depending on the ordering of the linked list of talloc children
under event_ctx（which can be reordered via talloc_free/reinit
of msg_dgm_ref) a pointer to msg_dgm_ref under srv_conn can
be left pointing to memory that was already freed. This pointer
is then used in the destructor for a file object called when
srv_conn is freed.
Re-ordering this to explicitly call TALLOC_FREE(srv_conn) first
and then model_ops->terminate() fixes this problem.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Böhme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sun Apr 2 05:18:39 CEST 2017 on sn-devel-144
Ensure it is called from process_standard.c after
every fork().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Fri Mar 31 14:48:17 CEST 2017 on sn-devel-144
This brings the callers of named_pipe_auth in line with that subsystem.
While these names may be better, the rest of Samba consistently uses
remote_address and local_address, and this difference has hidden bugs
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Pair-Programmed-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
We need to know in the RPC server the original address the client came from
so that we can log this with the authentication audit information
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Pair-Programmed-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12521
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Since Windows Server 2008 Microsoft uses a different port range for RPC
services. Before it was 1024-65535 and they changed it to 49152-65535.
We should use the same range as these are the ports the firewall in AD
networks normally allow.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12521
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
