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We unmap the tdb on expand, the remap. But when we have INCOHERENT_MMAP
(ie. OpenBSD) and we're inside a transaction, doing the expand can mean
we need to read from the database to partially fill a transaction block.
This fails, because if mmap is incoherent we never allow accessing the
database via read/write.
The solution is not to unmap and remap until we've actually written the
padding at the end of the file.
Reported-by: Amitay Isaacs <amitay@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Fri Mar 23 02:53:15 CET 2012 on sn-devel-104
Since we force mmap on, we don't intercept writes to the db, so we never
see it in an inconsistent state. #ifdef over the check that we should have
recovered it at least once.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We use tdb_mkdata() to get rid of many of them from the tests, and
explicit cast_const() in a few places.
tlist_for_each() still causes a warning, but that needs to be fixed in
CCAN.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Thu Mar 22 03:29:32 CET 2012 on sn-devel-104
This handles incoherent mmaps for TDB2 native databases, by forcing
mmap on for such systems, just like we did for tdb1.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This comment appears in two places in the code (commit
4c6a8273c6 from 2001):
/*
* We must ensure the file is unmapped before doing this
* to ensure consistency with systems like OpenBSD where
* writes and mmaps are not consistent.
*/
But this doesn't help, because if one process is using mmap and another
using pwrite, we get incoherent results. As demonstrated by OpenBSD's
failure on the tdb unit tests.
Rather than disable mmap on OpenBSD, we test for this issue and force mmap
to be enabled. This means that we will fail on very large TDBs on 32-bit
systems, but it's better than the horrendous performance penalty on every
OpenBSD system.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
OpenBSD doesn't idempotent-wrap sys/mman.h, so when we #define mmap to
an alternative, it fails to compile when sys/mman.h is included again.
Workaround is not to #define mmap to add arguments on Open BSD.
(Imported from CCAN commit e18e80fe175422d26efe689addc0f67bdba0e097)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
CCAN includes a little utility called "namespacize" which prepends ccan_ to
all public methods of a module, and fixes up any dependencies it finds. It's
a little primitive, but it works here.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
By using a different include order, we end up with a different version of
FILE_OFFSET_BITS (and probably other things) in parts of the test. The
different variants get linked together, and the result is weird: the stat
returns 0 size.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Do not use -Wl,-no-undefined flag on OpenBSD 5.x (tested on 5.0)
Autobuild-User: Amitay Isaacs <amitay@samba.org>
Autobuild-Date: Fri Mar 16 05:14:03 CET 2012 on sn-devel-104
On some platforms you can not debug coredumps after the default signal handler
gets done dumping core. This allows waf to have an option to disable our
default signal handler.
These were relics: they don't need to be defined here as long as we are
careful to include the replace headers before any standard headers (we are).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Wed Mar 14 10:12:26 CET 2012 on sn-devel-104
CommonCrypto/CommonDigest is available on Mac and there is function in
the libc for MD5 calculation. MD5Final is a C define of CC_MD5_Final.
Under some circumstance we have the symbol defined twice in samba
binaries on Snow Leopard at least.
By detecting CommonCrypto/CommonDigest we end up always using the system
version if available.
Another PPC issue (endian?) revealed that the summary code did not handle
capabilities correctly: in fact, it went into an endless loop.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Wed Mar 14 06:51:43 CET 2012 on sn-devel-104
It's a bit confusing to mix low-level and high-level libraries. We had
multiple libraries in one directory, and there were have circular
dependencies with other libraries outside that directory (in this case,
samba-hostconfig).
Autobuild-User: Jelmer Vernooij <jelmer@samba.org>
Autobuild-Date: Sat Mar 10 23:13:01 CET 2012 on sn-devel-104
Commit 4d58d0fa8f didn't work for lib/tdb
outside the build tree: symlink was pointing to wrong place.
Copy simplification from lib/tdb2, and fix the build farm.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Sat Mar 10 07:07:45 CET 2012 on sn-devel-104
This breaks when rlimit is less. Unfortunately, valgrind (32 bit x86,
3.7.0.SVN, Ubuntu) fails to set the file limit properly on the test:
reducing it to the obvious getrlimit/setrlimit/getrlimit works fine,
so leaving diagnostics for another day.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
(Imported from CCAN commit a85a809bb17af6b6cf6fa31b300c6622f64ee700)
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Thu Mar 8 06:30:48 CET 2012 on sn-devel-104
Not used by default, since it slows down testing (on my laptop) from
22 seconds to 2 minutes 30 seconds.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Amitay Isaacs <amitay@samba.org>
Autobuild-Date: Wed Mar 7 04:57:21 CET 2012 on sn-devel-104
The tests are ccan-style, so the names tell how to link them. This
logic is generic, and could be moved to wafsamba, cleaned up, and used
elsewhere.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This means changing headers, implementing a simple tap-like wrapper,
and also splitting out the helpers into those which are linked with
the api* tests (which can't use non-public tdb2 functions) and those
linked with the run* tests (which can).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This patch removes security=share, which Samba implemented by matching
the per-share password provided by the client in the Tree Connect with
a selection of usernames supplied by the client, the smb.conf or
guessed from the environment.
The rationale for the removal is that for the bulk of security=share
users, we just we need a very simple way to run a 'trust the network'
Samba server, where users mark shares as guest ok. This is still
supported, and the smb.conf options are documented at
https://wiki.samba.org/index.php/Public_Samba_Server
At the same time, this closes the door on one of the most arcane areas
of Samba authentication.
Naturally, full user-name/password authentication remain available in
security=user and above.
This includes documentation updates for username and only user, which
now only do a small amount of what they used to do.
Andrew Bartlett
--------------
/ \
/ REST \
/ IN \
/ PEACE \
/ \
| SEC_SHARE |
| security=share |
| |
| |
| 5 March |
| |
| 2012 |
*| * * * | *
_________)/\\_//(\/(/\)/\//\/\///|_)_______
We now only close fds 0, 1, 2 when we are a forked daemon, and take
care not to close a file descriptor that we might need for foreground
stdin monitoring.
This should fix stdout logging in the lsa and epmapper deamons (ie in
make test).
Andrew Bartlett
This adds an alisas to ensure that both our loadparm systems know all
the names.
I would like to move to the 'server ..' name as canonical, and this
will be raised on the list.
Andrew Bartlett
The library is called tdb, so the pc file must have the same name.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Mon Feb 27 06:59:58 CET 2012 on sn-devel-104
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Tue Feb 21 07:43:55 CET 2012 on sn-devel-104
Adds a Makefile, configure script, and tdb2.pc.in.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Like tdb1, it's the caller's responsibility to set up various config
options (eg. by #include "config.h") before including the public
header.
We use HAVE_CCAN for including the (private) CCAN headers, otherwise
dummy macros are used.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The tdb2 tools should #include "config.h" before tdb2.h (about to
become a requirement) and use libreplace where available.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Older systems don't provide a pkg-config file for popt.
Autobuild-User: Jelmer Vernooij <jelmer@samba.org>
Autobuild-Date: Mon Feb 20 15:13:32 CET 2012 on sn-devel-104
sys_poll() is only needed if the signal pipe is set up and used, but as
no signal handler ever writes to the pipe, this can all be removed.
signal based events are now handled via tevent.
Andrew Bartlett
Signed-off-by: Jeremy Allison <jra@samba.org>
This fixes an uninitialized read introduced by my fix for the tevent_signal
destructors. From looking at the code you might believe that this kicks in only
when talloc failed. But with -O3 I do see it in normal operations.
Sorry for that.
Autobuild-User: Volker Lendecke <vl@samba.org>
Autobuild-Date: Wed Feb 15 17:58:37 CET 2012 on sn-devel-104
Now we can build the test binaries: the CCAN style is to compile
everything called "compile_ok*.c", compile and run everything called
"run*.c", compile, link with the module, and run everything called
"api*.c", and link any other C files (presumably test helpers) into
all the tests.
Unfortunately, actually passing that between the various parts of
wscript is painful, so I open-coded the names.
Also, the tests expect to be run in a (temporary) directory they can
pollute, with the test directory found in test/ (to find the canned
TDB files, for example).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Tue Feb 14 06:53:46 CET 2012 on sn-devel-104
1) Make sure we include "tdb_private.h" first, to get the right headers
(esp. the correct setting of _FILE_OFFSET_BITS before unistd.h).
2) Fix 3G file test since expand logic has changed.
3) Fix nested transaction test, since default is to allow nesting.
4) Capture fdatasync, which was slowing down transaction expand.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I pulled tdb into CCAN as an experiment a while ago; it doesn't belong
there, but it has accumulated some important unit tests.
These are copied from CCAN version init-1486-gc438ec1 with #include "../"
changed to #include "../common/".
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The most convenient way to write unit tests in C is to directly
#include the C files (CCAN uses this, for example). That works quite
well, but it means that tdb_private.h now needs to be protected
against multiple inclusions.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
alloca.h needs to be included, or the build complains the implicit
definition of alloca.
Signed-off-by: Jeremy Allison <jra@samba.org>
Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Sat Feb 4 03:27:42 CET 2012 on sn-devel-104
I thought you could --disable-tdb2=false, apparently not! Thanks
Michael Adam...
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-User: Rusty Russell <rusty@rustcorp.com.au>
Autobuild-Date: Thu Feb 2 03:43:08 CET 2012 on sn-devel-104
