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The point is doing the following associations:
- non discardable state data (all TDB files that may need to be backed
up) go to statedir
- shared data (codepage stuff) go to codepagedir
The patch *does not change* the default location for these
directories. So, there is no behaviour change when applying it.
The main change is for samba developers who have to think when dealing
with files that previously pertained to libdir whether they:
- go in statedir
- go in codepagedir
- stay in libdir
Hi!
Attached find a patch that I've wanted to check in for ages.
The whole area probably needs a major rewrite, but this is a
minimal patch that on a 32-bit box saves 1.5k per smbd per
defined share, twice as much on a 64-bit box.
Volker
From ebb80e664ecc49eb597a45cb57e1067fbae49e62 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl@sernet.de>
Date: Wed, 31 Oct 2007 15:04:34 +0100
Subject: [PATCH] Change global->copymap from bool* to a bitmap
We right now have 401 parameters, so with bool being represented as a 64-bit
integer this saves about 3k of memory per smbd per share that is defined in
smb.conf.
to zero). If non-zero, writeX calls greater than this
value will be left in the socket buffer for later handling
with recvfile (or userspace equivalent). Definition of
recvfile for your system is left as an exercise for
the reader (I'm working on getting splice working :-).
Jeremy.
Control this by a new boolean smb.conf option "debug class" which is
by default set to "no" to keep the default debug header unchanged.
Michael
Note: You need to make clean for this patch.
This adds the two functions talloc_stackframe() and talloc_tos().
* When a new talloc stackframe is allocated with talloc_stackframe(), then
* the TALLOC_CTX returned with talloc_tos() is reset to that new
* frame. Whenever that stack frame is TALLOC_FREE()'ed, then the reverse
* happens: The previous talloc_tos() is restored.
*
* This API is designed to be robust in the sense that if someone forgets to
* TALLOC_FREE() a stackframe, then the next outer one correctly cleans up and
* resets the talloc_tos().
The original motivation for this patch was to get rid of the
sid_string_static & friends buffers. Explicitly passing talloc context
everywhere clutters code too much for my taste, so an implicit
talloc_tos() is introduced here. Many of these static buffers are
replaced by a single static pointer.
The intended use would thus be that low-level functions can rather
freely push stuff to talloc_tos, the upper layers clean up by freeing
the stackframe. The more of these stackframes are used and correctly
freed the more exact the memory cleanup happens.
This patch removes the main_loop_talloc_ctx, tmp_talloc_ctx and
lp_talloc_ctx (did I forget any?)
So, never do a
tmp_ctx = talloc_init("foo");
anymore, instead, use
tmp_ctx = talloc_stackframe()
:-)
Volker
contains a correct representation of a boolean value (in the
understanding of loadparm.c).
Make set_boolean() catch passing NULL for the boolean target.
Michael
be called with inverse == NULL.
Add a new function lp_parameter_is_canonical() to check whether a
parameter name is the canonical name (as apposed to an alias).
Michael
a parameter and value into the canonical paramter with the value
inverted if it was in invers boolean synonym.
Make net conf use this function when storing parameters.
Michael
Also simplify lp_canonicalize_parameter by making use of
the new function "is_synonym_of".
Michael
Note: If anything depends on the exact former output format of
show_parameter list, I would trigger the output of synonym information
by a boolean verbose switch (that could be passed to testparm
via the "-v" command line switch).
and produces the "canonical" (or main) name of the parameter (the one
synonym that does not have the flag FLAG_HIDE). The function also sets
a flag as to whether the synonym is a reverse boolean synonym.
Add some functions for the handling of string representations of boolean
values: return the canonical string representation of a bool, invert
a bool given as a string, canonicalize a bool given as a string.
Michael
Talked to both Tridge and Jeremy about this, Tridge said that there is a
special error message persuading OS/2 to fall back to other methods.
The calls now checked in always return the error message we used to
return when "read bmpx = False" was set (the default): ERRSRV, ERRuseSTD.
If someone has a reproducable test case where this is really needed, we
can always dig it up from version control and convert it to the new API.
But that time without that silly parameter, and with a torture test case
for "make test" please :-)
Volker
add in any cluster addresses. We need to response to these,
but not listen on them. This allows us to run nmbd on every
node in the cluster, and have all of them register with a
WINS server correctly
metze
not effective for the global section (snum < 0). This checkin
makes it effective for the global section, too.
This does not produce changes in the results of the present calls of
lp_next_parameter: Beside the new use in utils/net_conf.c (which is
hereby fixed), the only calls of lp_next_parameter are in web/swat.c,
where it is effectively always called with allparameters == 1.
Michael
The global options are stored as values in the subkey "global"
of the SMBCONF registry key.
The activation is accomplished in smb.conf though a new special
semantic of the "include" parameter: "include = registry" triggers
the processing of the registry global options exactly at the
position of the include statement. Options read from the registry
take the same precedence as parameters loaded from a file via
include. Need to reload the registry globals is detected by
watching the tdb sequence number.
Registry shares are automatically activated when the registry
globals are processed.
So a "registry only" configuration can be realized by an
smb.conf that looks as follows:
================================
[global]
include = registry
================================
The global options and registry shares can be conveniently
edited with the "net conf" utility.
Caveat:
A possible pitfall consists in using "include = registry"
together with the "lock directory" directive in the registry.
This problem will be addressed in the next time.
Note on the code:
Processing of the registry options is accomplished by a function
process_registry_globals() in loadparm.c The current version is
only an interim solution: It is handcoded instead of using the
infrastructure of reg_api.c. The reason for this is that using
reg_api still has too large linker dependencies, bloating virtually
all targets by PASSDB_OBJ, SMBLDAP_OBJ, GROUPDB_OBJ and LDB stuff.
A version of process_registry_globals that uses reg_api is
included but commented out. The goal is to eventually refactor
and restructure the registry code so that one can use the reg_api
to access only the registry tdb and not link all the dynamic
backends with all their linking implications.
in the winbindd_getgrnam() call. Couple of comments:
* Adds "winbind expand groups" parameter which defines the
max depth winbindd will expand group members. The default
is the current behavior of one level of expansion.
* The entire getrgnam() interface should be async. I
haven't done that.
* Refactors the domain users hack in fill_grent_mem() into
its own function.
I'm 100% certain I've forgotten to merge something, but the main code
should be in. It's mainly in dbwrap_ctdb.c, ctdbd_conn.c and
messages_ctdbd.c.
There should be no changes to the non-cluster case, it does survive make
test on my laptop.
It survives some very basic tests with ctdbd enables, I did not do the
full test suite for clusters yet.
Phew...
Volker
