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Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Dec 15 04:33:11 UTC 2021 on sn-devel-184
Previously we expected tickets to contain a ticket checksum if the sname
was not the krbtgt. However, the ticket checksum should not be present
if we are performing an AS-REQ to our own account. Now we determine a
ticket is a service ticket only if the request is also a TGS-REQ.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This helps to avoid problems with account creation on Windows due to UPN
uniqueness constraints.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
A skew error means the client just tried using PADATA-ENC-TIMESTAMP or
PADATA-ENCRYPTED-CHALLENGE, so it might not be necessary to announce
them in that case.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Dec 7 08:32:42 UTC 2021 on sn-devel-184
Heimdal does not check FAST options when no preauth data is supplied, so
the original test could not pass against Heimdal.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This flag should be ignored and the FAST armor key used instead.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not necessary for testing FAST, and was causing some of the
tests to fail.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Using a SPN should only be permitted if it is also a UPN, and is not an
enterprise principal.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is currently not checked in several places due to STRICT_CHECKING
being set to 0.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This allows us to ensure that the correct name makes it through to the
PAC.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This decreases the time that the tests take to run.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The net ads join command already handles this,
and the call was missing from the python bindings
for samba-tool domain join member.
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
As pointed out in https://lwn.net/Articles/875964, forbidding bidi
marker characters is not always going to be enough to avoid
right-to-left vs left-to-right confusion. Consider this:
$ python -c's = "b = x # 2 * n * m"; print(s); print(s.replace("x", "א").replace("n", "ח"))'
b = x # 2 * n * m
b = א # 2 * ח * m
Those two lines are semantically the same, with the Hebrew letters
"א" and "ח" replacing "x" and "n". But they look like they mean
different things.
It is not enough to say we only allow these scripts (or indeed
non-ascii) in strings and comments, as demonstrated in this example:
$ python -c's = "b = \"x#\" # n"; print(s); print(s.replace("x", "א").replace("n", "ח"))'
b = "x#" # n
b = "א#" # ח
where the second line is visually disordered but looks valid. Any series
of neutral characters between teo RTL characters will be reversed (and
possibly mirrored).
In practice this affects one file, which is a text file for testing
unicode normalisation.
I think, for the reasons shown above, we are unlikely to see legitimate
RTL code outside perhaps of documentation files — but if we do, we can
add those files to the allow-list.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Dec 3 18:53:43 UTC 2021 on sn-devel-184
Our previous behaviour was to try to os.stat() the non-existent
target.
The new code greatly improves efficiency for this little task.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14918
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Over the last month I got more and more reports,
that it's not possible to use a custom Samba version
on systems with sssd being installed, which depends on some
specific samba libraries installed in the system.
One major problem is that the custom libnss_winbind.so.2
depends on the libreplace-samba4.so of the custom build
and also injects an RPATH into the running process.
When sssd uses any nss library call it will get this,
when it then tries to load some of its plugins via dlopen(),
e.g.
ldd /usr/lib64/sssd/libsss_ad.so| grep samba
libsamba-util.so.0 => /lib64/libsamba-util.so.0
libreplace-samba4.so => /usr/lib64/samba/libreplace-samba4.so
libsamba-security-samba4.so => /usr/lib64/samba/libsamba-security-samba4.so
libsamba-errors.so.1 => /lib64/libsamba-errors.so.1
libsamba-debug-samba4.so => /usr/lib64/samba/libsamba-debug-samba4.so
libgenrand-samba4.so => /usr/lib64/samba/libgenrand-samba4.so
libsocket-blocking-samba4.so => /usr/lib64/samba/libsocket-blocking-samba4.so
libtime-basic-samba4.so => /usr/lib64/samba/libtime-basic-samba4.so
libsys-rw-samba4.so => /usr/lib64/samba/libsys-rw-samba4.so
libiov-buf-samba4.so => /usr/lib64/samba/libiov-buf-samba4.so
When that loads dlopen() will fail as a soname libreplace-samba4.so is
already loaded, but the symbol version within the other one don't match, as the
contain the exact version, e.g. replace_dummy@@SAMBA_4.13.3.
This is just an example and similar things can happen in all situations
where we provide libraries, which are potentially injected into every
process of the running system. These should only depend on libc.so and
related basic system libraries in order to avoid the problem.
We have the following libraries, which are in the that category:
- libnss_winbind.so.2
- libnss_wins.so.2
- pam_winbind.so
- winbind_krb5_locator.so
- async_dns_krb5_locator.so
The rules of library loading are really complex and symbol versioning
is not enough to solve it, only the combination of unique soname and
unique symbol version suffix seem to solve the problem, but injecting
an RPATH is still a problem.
In order to solve the problem I experimented with adding SAMBA_SUBSYSTEM()
definitions with 'hide_symbols=True' in order to do some static linking
of selected components, e.g.
bld.SAMBA_SUBSYSTEM('replace-hidden',
source=REPLACE_SOURCE,
group='base_libraries',
hide_symbols=True,
deps='dl attr' + extra_libs)
It's relatively simple to get to the point where the following are
completely static:
- libnss_winbind.so.2
- libnss_wins.so.2
- pam_winbind.so
- winbind_krb5_locator.so
But 'async_dns_krb5_locator.so' links in almost everything!
It seems we install the krb5 plugins into our own $MODULESDIR/krb5/,
so it may not be so critical, as long it's the admin who created
the desired symlinks into the location the kerberos libraries search
for plugins. Note the at least the locator plugins are always loaded
without any configuration, every .so in a special path are loaded with dlopen().
This is done by every application using kerberos, so we load a lot of samba libraries
into them.
Packagers should not put async_dns_krb5_locator.so (nor a symlink) into
the path that's reachable by libkrb5.so.
As a longterm solution we may want to change async_dns_krb5_locator.so
to use a helper process with posix_spawn() instead of doing everything
within the process.
Note I added hiden_symbols=True to the nss modules for Linux and
FreeBSD only, because these are the only platforms I'm able to test
on. We most likely should do the same on other platforms, but some
with access to the platform should provide a tested patch.
In order to avoid manual definitions of SAMBA_SUBSYSTEMS() with
'-hidden', I added the 'provide_builtin_linking=True' option,
as the logic is very similar to what we already have with the
'--builtin-libraries=BUILTIN_LIBRARIES' configure option.
SAMBA_PLUGIN() is used in order to use SAMBA_LIBRARY() in order
to make it more strict that these plugins can't be used as
normal depedency by other subsystems and libraries.
While being there it was easy enough to make libwbclient.so
also standalone without dependecies to other samba libraries.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14780
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
We set EXPECT_EXTRA_PAC_BUFFERS to 0 for the moment. This signifies that
these checks are currently not enforced, which avoids a lot of test
failures.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The value of expect_pac is not considered if we are expecting an error.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We were instead always running against the DC.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
salt_tests was running the tests defined in the base class as well as
its own tests.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
As we require MIT KRB5 >= 1.19 for the KDC, use more secure defaults.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Noel Power <npower@samba.org>
Autobuild-User(master): Noel Power <npower@samba.org>
Autobuild-Date(master): Mon Nov 22 11:18:09 UTC 2021 on sn-devel-184
also, we fixed the name ("arbitrary", not "arbitary").
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Noel Power <npower@samba.org>
