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HPUX has this problem.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13270
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): Fri Feb 23 22:56:35 CET 2018 on sn-devel-144
we don't use setnetgrent/endnetgrent/getnetgrent since security share passed
away.
Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
We have a stackframe we can use for the lifetime of the session.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Feb 21 02:46:40 CET 2018 on sn-devel-144
This implements a check to test the delete-on-close flag of a directory
for requests to create files in this directory.
Windows server implement this check, Samba doesn't as it has performance
implications.
This commit implements the check and a new option to control it. By
default the check is skipped, setting "check parent directory delete on
close = yes" enables it.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Sat Feb 3 23:42:16 CET 2018 on sn-devel-144
GPFS implements the DENY_DELETE sharemode, which prevents unlink() from
deleting the file.. This causes the problem that deleting a file through
"delete on close" fails, as the code in close.c first calls unlink() and
only later removes the file system sharemode.
Fix this by removing the file system sharemode before calling unlink().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13217
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Christof Schmitt <cs@samba.org>
Autobuild-Date(master): Wed Jan 17 01:31:53 CET 2018 on sn-devel-144
When the client's supplied csn overflows and hits a pending, long-running
request's csn, we panic. Fix this by counting the overflows in
smbXsrv_open_global0->channel_generation
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13215
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
FileValidDataLengthInformation and FileShortNameInformation are both
valid FileInfoClasses that we don't support. According to [MS-SMB2]
3.3.5.21.1, we should be returning STATUS_NOT_SUPPORTED instead of
NT_STATUS_INVALID_LEVEL for these.
Signed-off-by: Justin Maggard <jmaggard@netgear.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Jan 13 07:25:42 CET 2018 on sn-devel-144
Due to inconsistent use of lp_kernel_oplocks() we could miss kernel
oplocks being on/off in some of our oplock handling code, and thus
use the wrong logic.
Ensure all logic around koplocks and lp_kernel_oplocks() is consistent.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13193
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): Thu Jan 4 16:03:38 CET 2018 on sn-devel-144
Windows client at least doesn't have code to replay
a SMB2 Close after getting NETWORK_SESSION_EXPIRED,
which locks out a the client and generates an endless
loop around NT_STATUS_SHARING_VIOLATION.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13197
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Dec 21 23:28:42 CET 2017 on sn-devel-144
Fix pysmbd to use the sysacl (POSIX ACL support) as intended, and
not assume too much about the inner structure and implementation
of the permissions in the sysacl API.
This will allow the inner structure to change in a following commit.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13176
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Set SOCKET_CLOEXEC on the sockets returned by accept. This ensures that
the socket is unavailable to any child process created by system().
Making it harder for malicious code to set up a command channel,
as seen in the exploit for CVE-2015-0240
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
server_exit does an internal tree disconnect which requires a chdir to
the share directory. In case the file system encountered a problem and
the chdir call returns an error, this triggers a SERVER_EXIT_ABNORMAL
which in turn results in a panic and a coredump. As the log already
indicates the problem (chdir returned an error), avoid the
SERVER_EXIT_ABNORMAL in this case and not trigger a coredump.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13189
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Dec 16 01:56:06 CET 2017 on sn-devel-144
We also do the 128k reads asynchronously, just not the huge 24MB
ones. smb_setlen does not work well for >64k.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Add the mdns name configuration variable to control the mdns hostname.
The default is to use the NETBIOS name of the system to match previous
versions which is typically the hostname in all capitals. A value of mdns
can be provided to defer the hostname to the mdns library.
With the recent patch to support time machine being merged this patch
allows for a user to configure the server name that is advertised to
be lower cased through Avahi advertisements.
Signed-off-by: Kevin Anderson <andersonkw2@gmail.com>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Dec 5 04:58:26 CET 2017 on sn-devel-144
The only user of this is an informative message in smbcontrol. I don't think
that's worth the effort.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The initial idea was to have some "atomicity" in this API. Every
caller interested in a record would have to do something with
it once it changes. However, only one caller really used this
feature, and that is easily changed to not use it. So
remove the complexity.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This is the only user of the "prec" argument of
dbwrap_watched_watch_recv. The next patch will remove this
functionality, as it's easily replaced here.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Ensure we zero out unused grown area.
CVE-2017-15275
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13077
Signed-off-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(master): Tue Nov 21 19:42:22 CET 2017 on sn-devel-144
When setting up the chain, always use 'next->' variables
not the 'req->' one.
Bug discovered by 连一汉 <lianyihan@360.cn>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13041
Signed-off-by: Jeremy Allison <jra@samba.org>
We always return in the if-branch before. The else is redundant
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
If a O_NONBLOCK open fails with EWOULDBLOCK, this code changes smbd to
do a retry open every second, until either the timeout or we get a successful
open. If we're opening a file that has a kernel lease set by a non-smbd
process, this is the best we can do.
Prior to this, smbd would block on the second open on such a leased file
(not using O_NONBLOCK) which freezes active clients.
Regression test to follow.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13121
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
dptr_init_search_op() invokes VFS operations which are no-op in all
in-tree VFS modules. Furthermore, it's not being called by the SMB2
search code, so probably it's not being used by any out-of-tree VFS
module either.
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
dptr_init_search_op() invokes a VFS operation which is
a no-op in all in-tree VFS modules. Furthermore,
dptr_init_search_op() is not being called from SMB2 search
code, which hints that no out-of-tree VFS module needs it.
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
