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dnsserver_common.c and dnsutils.c both share similar code to process
zone properties. This patch extracts the common code and moves it to
dnsserver_common.c.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13669
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Fixes for
Bug 13669 - (CVE-2018-16852) NULL
pointer de-reference in Samba AD DC DNS management
The presence of the ZONE_MASTER_SERVERS property or the
ZONE_SCAVENGING_SERVERS property in a zone record causes the server to
follow a null pointer and terminate.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13669
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Tests to verify
Bug 13669 - (CVE-2018-16852) NULL
pointer de-reference in Samba AD DC DNS management
The presence of the ZONE_MASTER_SERVERS property or the
ZONE_SCAVENGING_SERVERS property in a zone record causes the server to
follow a null pointer and terminate.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13669
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
In the case of hitting the talloc ~256MB limit, this causes a crash in
the server.
Note that you would actually need to load >256MB of data into the LDAP.
Although there is some generated/hidden data which would help you reach that
limit (descriptors and RMD blobs).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13674
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
In Heimdal KRB5_KDC_ERR_CLIENT_NAME_MISMATCH is an enum, so we tried to double-free
mem_ctx.
This was introduced in 9a0263a7c3 for the
MIT KDC effort.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13628
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Count number of answers generated by internal DNS query routine and stop at
20 to match Microsoft's loop prevention mechanism.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13600
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Stops the user from adding a self-referencing CNAME over RPC, which is an easy
mistake to make with samba-tool.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13600
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
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 Nov 27 21:42:24 CET 2018 on sn-devel-144
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue Nov 27 10:38:11 CET 2018 on sn-devel-144
A signed integer does not make any sense for an IDL array length
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The protos were declared in lib/krb5_wrap but the functions are not
available there.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Stacked VFS modules might use the file name, not the file
handle. Looking at you, vfs_fruit...
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13455
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
All existing callers pass NULL, no change in behaviour.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13455
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Can be used by callers to determine if a path is in fact pointing at a
file in a snapshot. Will be used in the next commit.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13688
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Not used for now, all existing callers pass NULL.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13688
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This test will not be run from the main torture test runner in selftest,
as there we don't pass the required arguments 'twrp_file' and
'twrp_snapshot'.
The test needs a carefully prepared environment with provisioned
snapshot data, so the test will be started from a blackbox test
script. That comes next.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13688
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The backup tests have a special constraint where we always want to use
check_output() over runcmd(). The reason is we need the samba-tool
backup/restore commands executed in a separate process. Otherwise the
global underlying LoadParm can accumulate settings from earlier test
case runs.
We can avoid someone in future inadvertently running runcmd() by
mistake, by simply changing the inheritance so we no longer inherit from
SambaToolCmdTest (so the runcmd functions are no longer present).
The comment explaining this has been moved to the top of the file.
Note that the TestCaseInTempDir inheritance was redundant.
BlackboxTestCase inherits from TestCaseInTempDir (and SambaToolCmdTest
was inheriting from BlackboxTestCase).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Tim Beale <timbeale@samba.org>
Autobuild-Date(master): Tue Nov 27 06:57:03 CET 2018 on sn-devel-144
Not all testenvs have the DOMSID set as an environment variable.
However, it's easy enough to work out from querying the samdb.
This is a slight change in that we use a source4-generated loadparm
to connect to the DB (self.lp is source3-generated, presumably for
some SMB connection dependency).
This change is so we can run the ntacls_backup tests against a DC with
SMBv1 disabled (the restoredc). Note that currently the tests fail in
the smb.SMB() connection in the setUp(), so we can't run them as part
of autobuild just yet (because we can't known-fail test errors).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Running the backup tests against the restoredc highlights that the
backup online/rename commands don't work if SMBv1 is disabled. Note that
the offline commands still work because they don't rely on an SMB
connection to the server.
(Note that running the backup tests against the restoredc is probably a
good idea anyway, to prove that there's no limit to the number of times
you can restore a domain from backup, i.e. we support more than just a
one-off restore).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The restoredc already runs under python3, so before we can run the
domain_backup tests against the restoredc, we need to make sure they
work under python3.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Noel Power <noel.power@suse.com>
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If the backup command fails (i.e. throws an exception), we want the test
to fail. This makes it easier to mark tests as 'knownfail' (because we
can't knownfail test errors).
In theory, this should just involve updating run_cmd() to catch any
exceptions from the command and then call self.fail().
However, if the backup command fails, it can leave behind files in the
targetdir. Partly this is intentional, as these files may provide clues
to users as to why the command failed. However, in selftest, it causes
the TestCaseInTempDir._remove_tempdir() assertion to fire. Because this
assert actually gets run as part of the teardown, the assertion gets
treated as an error rather than a failure (and so we can't knownfail the
backup tests). To get around this, we remove any files in the tempdir
prior to calling self.fail().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
self.create_backup() uses self.run_cmd(), which is a wrapper around
self.check_output(). Rework the code to call the underlying
check_output() function directly instead.
The reason we're doing this is we want run_cmd() to catch exceptions and
fail the test (i.e. in the next patch). However, we can't do that because
this test case relies on receiving the exceptions.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We recommend users disable SMBv1 to avoid potential security holes.
However, none of the AD DC testenvs have SMBv1 disabled.
This patch disables SMBv1 on an arbitrarily-chosen testenv (restoredc).
I chose restoredc as we'll want to run the backup tool tests against
this target, and it might be useful to check we can backup a DC if it's
already been restored once.
Note that SMBv2 doesn't support POSIX extensions (only SMBv1 does),
which is why we haven't just disabled SMBv1 on *all* testenvs.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
smbclient4 doesn't support SMBv2 connections, i.e. it won't work against
a DC with SMBv1 disabled. The smoke-test here is that the DC accepts
the connection, so we don't really care what SMB tool we use to connect.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Regardless of whether the testenv uses --use-ntvfs as part of its
provision options, the s4 testenvs all default to using the NTVFS file
server.
It's not particularly obvious that this is happening. The new restore
DCS (restoredc, renamedc, labdc) were all using NTVFS unintentionally.
The problem is the s4 testenvs default to using services '-s3fs +smb".
provision_ad_dc() explicitly overrides this to use s3fs again
(technically it ends up with both in its smb.conf and just uses whatever
comes last).
This patch changes the testenv setup to check for the presence of the
'--use-ntvfs' option and to set the 'server services' config option
appropriately. This way, the provision command and the smb.conf options
should always line up, with respect to NTVFS.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The chgdcpass testenv was not passing --use-ntvfs to the provision
command, but it was still actually using NTVFS.
The reason is the smb.conf generated by provision_raw_step1() would
always try to use the s4/NTVFS file server. Because the smb.conf already
existed, this trumped what was passed to the provision command.
This patch doesn't change the chgdcpass file server. It just makes it
more obvious that chgdcpass is using NTVFS.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If a testenv didn't specify any other provision arguments, then it
defaulted to using the NTVFS file server.
This patch makes it explicit, so we just pass through "--use-ntvfs" as
extra provision args in the cases we want.
(Whether all these testenvs really need to use NTVFS or not is another
question, but at least now it's easy to see which testenvs use it).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Nov 23 20:23:57 CET 2018 on sn-devel-144
Add some comments to the prefork code explaining what's going on.
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Nov 23 11:40:49 CET 2018 on sn-devel-144
