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Guenther
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Reloading of the printers requires rpc services up and running! The
first call in reload_services will be skipped.
Signed-off-by: Simo Sorce <idra@samba.org>
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The move to the parent makes it possible to use an internal rpc pipe
really early and as we migrated serveral parts of samba to rpc function
this is required. This should speed up the fork of a smbd a bit cause
the rpc services are already running.
We still have several problems here which aren't solved. We don't have a
dependency tree here. For example we have to make sure that the registry
is initialized before we can use the winreg pipe. The spoolss server
requires winreg, so we have to start winreg before we can start the
spoolss server. I'm sure there are more dependencies.
Signed-off-by: Simo Sorce <idra@samba.org>
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Signed-off-by: Simo Sorce <idra@samba.org>
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Signed-off-by: Simo Sorce <idra@samba.org>
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Signed-off-by: Simo Sorce <idra@samba.org>
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Guenther
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It would be obvious to initialize this in smbd_init_globals(), but there the
messaging_context can't be initialized yet because we don't have smb.conf
loaded yet.
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This removes some deep references to procid_self()
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breaks running from inetd
(we free frame below). Use NULL instead.
Jeremy.
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TDB_CLEAR_IF_FIRST
changes. Using talloc_autofree_context() has undesirable effects when forked
subprocesses exit.
Jeremy.
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This will allow future TDB_CLEAR_IF_FIRST behaviour
Signed-off-by: Jeremy Allison <jra@samba.org>
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Pair-programmed-with: Andreas Schneider <asn@samba.org>
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by modules to crash due to destructors being called (found when using the vfs_aio_fork
module with smb2).
Jeremy.
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This helps vfstest, which previously had duplicate copies of these functions.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
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This helps vfstest, as it previously had duplicate copies of these
functions.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
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Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
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Signed-off-by: Günther Deschner <gd@samba.org>
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Guenther
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This only prints a DEBUG()
Andrew Bartlett
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This shrinks include/includes.h.gch by the size of 7 MB and reduces build time
as follows:
ccache build w/o patch
real 4m21.529s
ccache build with patch
real 3m6.402s
pch build w/o patch
real 4m26.318s
pch build with patch
real 3m6.932s
Guenther
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In the child, we fully re-open serverid.tdb, which leads to one fcntl lock for
CLEAR_IF_FIRST detection per smbd. This opens the tdb in the parent and holds
it, so that tdb_reopen_all correctly catches the CLEAR_IF_FIRST bit.
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The notify tdb files are opened at tconX time, which leads to one fcntl lock
for CLEAR_IF_FIRST detection per smbd. This opens the tdbs in the parent and
holds it, so that tdb_reopen_all correctly catches the CLEAR_IF_FIRST bit.
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In the child, we fully re-open messaging.tdb, which leads to one fcntl lock for
CLEAR_IF_FIRST detection per smbd. This opens the tdb in the parent and holds
it, so that tdb_reopen_all correctly catches the CLEAR_IF_FIRST bit.
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This boolean option controls whether at exit time the server dumps a list of
files with debug level 0 that were still open for write. This is an
administrative aid to find the files that were potentially corrupt if the
network connection died.
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metze
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When a samba server process dies hard, it has no chance to clean up its entries
in locking.tdb, brlock.tdb, connections.tdb and sessionid.tdb.
For locking.tdb and brlock.tdb Samba is robust by checking every time we read
an entry from the database if the corresponding process still exists. If it
does not exist anymore, the entry is deleted. This is not 100% failsafe though:
On systems with a limited PID space there is a non-zero chance that between the
smbd's death and the fresh access, the PID is recycled by another long-running
process. This renders all files that had been locked by the killed smbd
potentially unusable until the new process also dies.
This patch is supposed to fix the problem the following way: Every process ID
in every database is augmented by a random 64-bit number that is stored in a
serverid.tdb. Whenever we need to check if a process still exists we know its
PID and the 64-bit number. We look up the PID in serverid.tdb and compare the
64-bit number. If it's the same, the process still is a valid smbd holding the
lock. If it is different, a new smbd has taken over.
I believe this is safe against an smbd that has died hard and the PID has been
taken over by a non-samba process. This process would not have registered
itself with a fresh 64-bit number in serverid.tdb, so the old one still exists
in serverid.tdb. We protect against this case by the parent smbd taking care of
deregistering PIDs from serverid.tdb and the fact that serverid.tdb is
CLEAR_IF_FIRST.
CLEAR_IF_FIRST does not work in a cluster, so the automatic cleanup does not
work when all smbds are restarted. For this, "net serverid wipe" has to be run
before smbd starts up. As a convenience, "net serverid wipedbs" also cleans up
sessionid.tdb and connections.tdb.
While there, this also cleans up overloading connections.tdb with all the
process entries just for messaging_send_all().
Volker
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to respond to a read or write."
This reverts commit a6ae7a552f851a399991262377cc0e062e40ac20.
This fixes bug #7222 (All users have full rigths on all shares) (CVE-2010-0728).
(cherry picked from commit 1c9494c76cc9686c61e0966f38528d3318f3176f)
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Jeremy.
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On unclean shutdown we can end up with stale entries in the brlock,
connections and locking db. Previously we would do the cleanup on
every unclean exit, but that can cause smbd to be completely
unavailable for several minutes when a large number of child smbd
processes exit.
This adds a rate limited cleanup of the databases, with the default
that cleanup happens at most every 20s
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These have been replaced with the min timeout in blocking.c
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