Distributions like Debian/Ubuntu ship the plugins in multiple packages
that are not all installed by default. When running tools like pki or
swanctl, which don't use modular loading with config snippets by default,
there are errors in the output if these packages and plugins are
currently not available. In order to not alarm users, this change adds
a configure option that package maintainers can use. It causes the log
level of the message to increase and also adds a note that mentions that
plugins are potentially available in other packages (which should be the
case unless the user tried to load a plugin, e.g. via load statement,
that is not actually built and shipped by the package maintainers).
Loading all libstrongswan plugins isn't necessary as the tool only uses
the plugins to parse/decrypt credentials. So it's similar to pki, but
it doesn't do (online) certificate validation, access tokens, or need
access to databases.
While it's usually not an issue to load unnecessary plugins, one thing
that came up recently are the new capabilities required by the agent
plugin. Since Debian's AppArmor policy for swanctl doesn't grant them,
this produces an error message that might confuse users.
This ensures that only certificates/private keys accessible by the
configured user are accessed and prevents attackers from misusing
other user's credentials.
Also removed setting NM_VERSION_MIN_REQUIRED, which suppresses deprecation
warnings that were added with newer API versions, and
NM_VERSION_MAX_ALLOWED, which warns if using functions added in newer
API versions, so we always build against the latest API available.
But we check explicitly for the required function so this works with
older NM versions and automatically will use it if the function is
backported.
Note that we can't use BUILD_FROM_FILE to read the temporary files as that
uses mmap() which SELinux policies prevent us from using at the location
these files are stored ([/var]/run/NetworkManager/cert/).
Fixes: CVE-2025-9615
When cross-compiling for Windows on Ubuntu, we don't have POSIX regular
expressions available (there does not seem to be any alternative libraries
either), but since the tests are not executed that's OK. On AppVeyor,
MSYS2 has libgnurx installed, which works fine but requires explicit
linking with `-lregex`.
This is loosely based on a patch by Thomas Egerer.
The plugin was apparently broken for years because it uses functions that
don't exist anymore. It was quite limited anyway, so it was never really
used in OpenWrt to begin with (instead they generate configs in a custom
init script).
A recent gettext release (0.25 via Homebrew) installs the M4 macros in a
different location (<prefix>/share/gettext/m4 instead of
<prefix>/share/aclocal). According to the commit messages to avoid "bad
interactions between autoreconf and autopoint". Since we only depend
on gettext for that macro and this move makes it complicated, we can also
just integrate the macro from gnulib directly (which gettext 0.18+ relies
on anyway).
If this is used, the functionality to set a private key/value/seed for
key exchange methods is removed (including from the interface to avoid
accidentally forgetting to wrap implementations and uses of set_seed()).
The set_seed() method is assigned outside the INIT() macro to avoid
potentially undefined behavior (preprocessing directives in macro
arguments).
The test done by the crypto tester is a simple functionality test.
Directly calling setup.py is deprecated (apparently has been for a while,
but now we get large warnings). Direct installation is also discouraged.
So this removes that option. The built wheel (the old egg format is not
used/built anymore) can be installed manually in a venv or the like.
This follows FIPS 203 relatively closely but takes some ideas from the
reference implementation. In particular, how to avoid potential
side-channels via direct C division/modulo operations. However, it just
uses Barrett reduction (no Montgomery reduction) and no negative
coefficients to avoid number format conversions and keep the
implementation clearer.
These allow, for instance, a vici client on a host to communicate with
an IKE daemon running in a VM.
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
This also refactors the BPF handling so it can be shared between the
dhcp and farp plugins. The latter is adapted accordingly.
Closesstrongswan/strongswan#2047
Co-authored-by: Tobias Brunner <tobias@strongswan.org>
The openxpki plugin directly access the certificates table in
the OpenXPKI's MariaDB in order to retrieve the status of an
issued X.509 certificate based on its serial number.
Tobias Brunner