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Document usage of the snapper VFS module, detailing permissions required
to list and access snapshots.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Windows attempts to access previous file versions by first issuing an
FSCTL_SRV_ENUMERATE_SNAPSHOTS request, and then using the corresponding
snapshot timestamps in subsequent path based requests.
This change sees vfs_snapper provide snapshot enumeration data via the
get_shadow_copy_data VFS hook. Path based operations are also
intercepted, with @GMT-$time components converted to snapper .snapshot/#
paths.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Provides an interface for accessing snapshots exposed by Snapper. The
module communicates with snapperd on the local machine using the D-Bus
interface.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This function is only used in server.c
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Mon Jun 30 17:20:00 CEST 2014 on sn-devel-104
The parent smbd process only forwards the message to the child
processes. Use a common function instead of two separate ones that do
the same thing.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Based on a fix from Hemanth Thummala <hemanth.thummala@gmail.com>
Bug #10673 - Increasing response times for byte range unlock requests.
The previous refactoring makes it obvious we need to call
remove_pending_lock() in all places where we are returning
from the SMB2 blocking lock call.
https://bugzilla.samba.org/show_bug.cgi?id=10673
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Mon Jun 30 14:59:16 CEST 2014 on sn-devel-104
SMB2 blocking locks can only have one lock per request, so
there can never be any other locks to wait for.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
SMB2 blocking locks can only have one lock per request, so
there can never be any previous locks to remove.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
This makes configure command consistent with spec file.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Mon Jun 30 11:23:18 CEST 2014 on sn-devel-104
The patch "s3-shadow-copy2: Fix dir/@GMT-2012.10.15-13.48.43 form of
paths" takes care of a case marked as TODO, remove it and adjust the
comments accordingly.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
The previous clause in shadow_copy2_strip_snapshot would only handle @GMT-
at the end of a pathname if it was the *only* pathname component. XP
seems to send @GMT- at the end under certain circumstances even with a
path prefix.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Thu Jun 26 17:30:00 CEST 2014 on sn-devel-104
While we are traversing the freelist anyways, merge a record
with the left if it is also a free list record.
That partially makes up for the fragmentation introduced by
the lack of merging with right records in tdb_free().
Note there is a potential slight downside:
If the left record we merge the current record into was earlier
in the chain and has hence already been met in traverse,
then we can not use the enlarged record even if it might be
a new best fit.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Jun 26 12:16:03 CEST 2014 on sn-devel-104
With the new code, this has the side effect of
merging adjacent records in the freelist if the
database is not read-only.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
So that we automatically defragment the free list when freelist_size is called
(unless the database is read only).
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
This is intended to be called to reduce the fragmentation in the
freelist. This is to make up the deficiency of the freelist
to be not doubly linked. If the freelist were doubly linked,
we could easily avoid the creation of adjacent freelist entries.
But with the current singly linked list, it is only possible
to cheaply merge a new free record into a freelist entry on the left,
not on the right...
This can be called periodically, e.g. in the vacuuming process
of a ctdb cluster.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Variant of check_merge_with_left_record() that reads the record
itself if necessary.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Check whether the record left of a given freelist record is
also a freelist record, and if so, merge the two records.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
by using early returns and better variable names,
and reducing indentation.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
Autobuild-User(master): David Disseldorp <ddiss@samba.org>
Autobuild-Date(master): Wed Jun 25 13:37:24 CEST 2014 on sn-devel-104
Adds a new test to raw.open.
Opens a file with SHARE_NONE, writes 1 byte at offset 1023,
attempts a second open with r/w access+truncate disposition,
then checks that open fails with SHARING_VIOLATION, and
the file is not truncated (is still size 1024). Correctly
detects the bug and fixed smbd for me.
https://bugzilla.samba.org/show_bug.cgi?id=10671
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
Fix from Volker, really - just tidied up a little.
The S_ISFIFO check may not be strictly neccessary,
but doesn't hurt (might make the code a bit more complex
than it needs to be).
Fixes bug #10671 - Samba file corruption as a result of failed lock check.
https://bugzilla.samba.org/show_bug.cgi?id=10671
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
The Linux kernel has a bug in that it can give spurious
wakeups on a non-blocking UDP socket for a non-deliverable packet.
When nmbd was changed to use non-blocking sockets it
became vulnerable to a spurious wakeup from poll/epoll.
Fix sys_recvfile() to return on EWOULDBLOCK/EAGAIN.
CVE-2014-0244
https://bugzilla.samba.org/show_bug.cgi?id=10633
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
tests/scripts/test_wrap script is updated based on the configured paths.
This should be installed instead of the stock version in the source.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Martin Schwenke <martins@samba.org>
Autobuild-Date(master): Tue Jun 24 09:37:39 CEST 2014 on sn-devel-104
This avoids the need to build a tarball to get version information.
Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
The write should never update the time, so the fraction of the write
time delay we use is not important.
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Jun 24 01:44:06 CEST 2014 on sn-devel-104
This removes the hardcoded TIMEDELAY_SECS that was then made variable
by the confusing "secs" variable
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The previous test was far, far too tight, it was in seconds 1/4 of the
fraction of the normal delay we had configured Samba to use so (1/4) *
(500 000 / 2000 000) = 1/16 (sec). This margin appears to just be too
tight for our loaded test server.
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
In particular, this avoids a comparison with
double diff = timeval_elapsed() being promoted to an integer.
Andrew Bartlett
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
