For some of the test we don't like the default log behavior
and there seems no easy way to change that except to fork
the driver. The license seems unproblematic since we're
GPL anyway.
v2:
- Do not use forked-test-driver for UTs. Default behavior
is fine for those.
Change-Id: I67d461afbcc9c06b1fc5ab4477141d7b8bd9ba8e Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20240125110036.16070-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28132.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Tue, 2 Apr 2024 13:49:09 +0000 (15:49 +0200)]
Remove/combine redundant call of EVP_CipherInit before EVP_CipherInit_Ex
EVP_CipherInit basically is the same EVP_CipherInit_ex except that it
in some instances it resets/inits the ctx parameter first. We already
call EVP_CIPHER_CTX_reset to reset/init the ctx before. Also ensure that
EVP_CipherInit_Ex gets the cipher to actually be able to initialise the
context.
- Remove obsolete ifconfig_broadcast. Since this was
removed in 2.5.0, do not add a removal note but just
completely remove it.
- Add missing documentation of IPv6 variants for
ifconfig_pool_* variables.
Github: fixes Openvpn/openvpn#527
Change-Id: Ia8c8de6799f0291fc900628fbd06c8a414e741ca Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240321161623.2794161-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28438.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
phase2_tcp_server: fix Coverity issue 'Dereference after null check'
As Coverity says:
Either the check against null is unnecessary, or there may be a null
pointer dereference.
In phase2_tcp_server: Pointer is checked against null but then
dereferenced anyway
There is only one caller (link_socket_init_phase2) and it already has
an ASSERT(sig_info). So use that here was well.
v2:
- fix cleanly by actually asserting that sig_info is defined
Change-Id: I8ef199463d46303129a3f563fd9eace780a58b8a Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20240325071448.12143-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28452.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Mon, 25 Mar 2024 12:50:52 +0000 (13:50 +0100)]
Use snprintf instead of sprintf for get_ssl_library_version
This is avoid a warning/error (when using -Werror) under current macOS
of sprintf:
__deprecated_msg("This function is provided for compatibility
reasons only. Due to security concerns inherent in the design
of sprintf(3), it is highly recommended that you use snprintf(3)
instead.")
Change-Id: I3c6fd36eb9daee9244d6dc6d9f22de1c5cf9d039 Signed-off-by: Arne Schwabe <arne-openvpn@rfc2549.org> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240325125052.14135-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28458.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Previously the sections "Encryption Options" and
"Data channel cipher negotiation" were on the same
level as "OPTIONS", which makes no sense. Instead
move them and their subsections one level down.
Use ` since that was already in use in section
"Virtual Routing and Forwarding".
Change-Id: Ib5a7f9a978bda5ad58830e43580232660401f66d Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20240325071520.12513-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28453.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
- Remove compression settings. Not recommended anymore.
- Remove old cipher setting. Replaced by data-ciphers negotiation.
- Add comment how to set data-ciphers for very old clients.
- Remove/reword some old comments. e.g. no need to reference
OpenVPN 1.x anymore.
- Mention peer-fingerprint alternative.
- comment out "tls-auth" as that is not needed for a bare-bones VPN config
and needs additional setup.
Github: #511
Change-Id: I1a36651c0dea52259533ffc00bccb9b03bf82e26 Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20240325071320.11348-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28451.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Lev Stipakov [Mon, 18 Mar 2024 18:17:44 +0000 (19:17 +0100)]
Disable DCO if proxy is set via management
Commit
45a1cb2a ("Disable DCO if proxy is set via management")
attempted to disable DCO when proxy is set via management interface. However,
at least on Windows this doesn't work, since:
- setting tuntap_options->disable_dco to true is not enough to disable DCO
- at this point it is a bit too late, since we've already done DCO-specific
adjustments
Since proxy can be set via management only if --management-query-proxy is
specified, the better way is to add a check to dco_check_startup_option().
Github: fixes OpenVPN/openvpn#522
Change-Id: I16d6a9fefa317d7d4a195e786618328445bdbca8 Signed-off-by: Lev Stipakov <lev@openvpn.net> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240318181744.20625-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28415.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Lev Stipakov [Tue, 19 Mar 2024 15:27:11 +0000 (17:27 +0200)]
interactive.c: Fix potential stack overflow issue
When reading message from the pipe, we first peek the pipe to get the size
of the message waiting to be read and then read the message. A compromised
OpenVPN process could send an excessively large message, which would result
in a stack-allocated message buffer overflow.
To address this, we terminate the misbehaving process if the peeked message
size exceeds the maximum allowable size.
CVE: 2024-27459
Microsoft case number: 85932
Reported-by: Vladimir Tokarev <vtokarev@microsoft.com>
Change-Id: Ib5743cba0741ea11f9ee62c4978b2c6789b81ada Signed-off-by: Lev Stipakov <lev@openvpn.net> Acked-by: Heiko Hund <heiko@openvpn.net>
Message-Id: <20240319152803.1801-2-lev@openvpn.net>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28420.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Lev Stipakov [Tue, 19 Mar 2024 15:16:07 +0000 (17:16 +0200)]
interactive.c: disable remote access to the service pipe
Remote access to the service pipe is not needed and might
be a potential attack vector.
For example, if an attacker manages to get credentials for
a user which is the member of "OpenVPN Administrators" group
on a victim machine, an attacker might be able to communicate
with the privileged interactive service on a victim machine
and start openvpn processes remotely.
CVE: 2024-24974
Microsoft case number: 85925
Reported-by: Vladimir Tokarev <vtokarev@microsoft.com>
Change-Id: I8739c5f127e9ca0683fcdbd099dba9896ae46277 Signed-off-by: Lev Stipakov <lev@openvpn.net> Acked-by: Heiko Hund <heiko@openvpn.net>
Message-Id: <20240319151723.936-2-lev@openvpn.net>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28419.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Lev Stipakov [Tue, 19 Mar 2024 13:53:45 +0000 (15:53 +0200)]
win32: Enforce loading of plugins from a trusted directory
Currently, there's a risk associated with allowing plugins to be loaded
from any location. This update ensures plugins are only loaded from a
trusted directory, which is either:
- HKLM\SOFTWARE\OpenVPN\plugin_dir (or if the key is missing,
then HKLM\SOFTWARE\OpenVPN, which is installation directory)
- System directory
Loading from UNC paths is disallowed.
Note: This change affects only Windows environments.
CVE: 2024-27903
Change-Id: I154a4aaad9242c9253a64312a14c5fd2ea95f40d Reported-by: Vladimir Tokarev <vtokarev@microsoft.com> Signed-off-by: Lev Stipakov <lev@openvpn.net> Acked-by: Selva Nair <selva.nair@gmail.com>
Message-Id: <20240319135355.1279-2-lev@openvpn.net>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28416.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Individual tests can define a script to run to test
whether they should be skipped.
Included in this commit is an example check which
checks whether we can do NTLM checks. This fails
e.g. on recent versions of Fedora with mbedTLS
(tested with Fedora 39) or when NTLM support is not
compiled in.
v2:
- ntlm_support:
- support OpenSSL 3
- allow to build without cmocka
v3:
- add example to t_client.rc-sample
- t_client.sh code style
- use syshead.h in error.h
v5:
- rename SKIP_x to CHECK_SKIP_x
Change-Id: I13ea6752c8d102eabcc579e391828c05d5322899 Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240308102818.9249-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/search?l=mid&q=20240308102818.9249-1-gert@greenie.muc.de Signed-off-by: Gert Doering <gert@greenie.muc.de>
Removed if-guard checking if any feature is
enabled before performing per-feature check.
It doesn't save us much but instead introduces
uneeded complexity.
While at it, fixed a typo IMCP -> ICMP for defined
PIPV6_ICMP_NOHOST_CLIENT and PIPV6_ICMP_NOHOST_SERVER
macros.
Fixes: Trac https://community.openvpn.net/openvpn/ticket/269
Change-Id: I4b5e8357d872c920efdb64632e9bce72cebee202 Signed-off-by: Gianmarco De Gregori <gianmarco@mandelbit.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240307124616.16358-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28345.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Including "ssl.h" conflicts with the wolfSSL ssl.h header file. The openvpn/src directory needs to be included before include/wolfssl. include/wolfssl needs to be included so that openvpn can pick up wolfSSL compatibility headers instead of OpenSSL headers without changing the paths.
src/openvpn/Makefile.am does not need to be modified because AM_CPPFLAGS is placed before AM_CFLAGS in the output Makefile.
Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com> Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <20240212132522.125903-1-juliusz@wolfssl.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28229.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Fri, 9 Feb 2024 11:06:29 +0000 (12:06 +0100)]
Implement generating TLS 1.0 PRF using new OpenSSL 3.0 APIs
OpenSSL 3.0 introduced a new API for doing key derivation. So this leaves
us now with three different implementation for 1.0.2, 1.1.x and 3.x.
This was initially done to maybe still have a working TLS 1.0 PRF when
using OpenSSL 3.0 in FIPS but it gives the same error as with the older API.
But since moving to a new API is always good, we use the new API when using
OpenSSL 3.0. We also print the internal OpenSSL error message when
the KDF fails.
This also allows us now to compile an OpenSSL build that has been built with
OPENSSL_NO_MD5. Which is not yet common but might be in the future.
Change-Id: Ic74195a4ed340547c5e862dc2438f95be318c286 Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240209110629.15364-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28203.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Thu, 8 Feb 2024 08:57:49 +0000 (09:57 +0100)]
Add unit test for encrypting/decrypting data channel
This test is reusing code from --test-crypto but is modified to not rely
on the static key functionality and also only tests the most common
algorithm. So it does not yet completely replace --test-crypto
Change-Id: Ifa5ae96165d17b3cae4afc53e844bb34d1610e58 Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240208085749.869-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28195.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Kristof Provost [Wed, 24 Jan 2024 15:27:39 +0000 (16:27 +0100)]
dco-freebsd: dynamically re-allocate buffer if it's too small
It's possible for the buffer we provide for OVPN_GET_PEER_STATS to be
too small. Handle the error, re-allocate a larger buffer and try again
rather than failing.
Signed-off-by: Kristof Provost <kprovost@netgate.com> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240124152739.28248-1-kprovost@netgate.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28128.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
documentation: Update and fix documentation for --push-peer-info
- description of IV_PROTO was outdated, missing a lot
of flags
- complete list of compression flags, but separate them out
- various other style/grammar/typo fixes
Change-Id: I7f854a5a14d2a2a391ebb78a2a92b3e14cfd8be6 Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <20240206141057.46249-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28178.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Thu, 1 Feb 2024 14:48:17 +0000 (15:48 +0100)]
Allow unit tests to fall back to hard coded location
Settings the environment variable required for running unit tests is
tiresome in my IDE (Clion). So allow unit tests to fall back to a hard
coded location in case the environment variable is not set.
Change-Id: Ide72b81f497088dd0fd2cdcfff83cbce5b48f145 Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240201144817.188884-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28161.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Tue, 23 Jan 2024 10:43:58 +0000 (11:43 +0100)]
Ensure that all unit tests use unbuffered stdout and stderr
stderr is normally always unbuffered but stdout can be buffered. Especially,
when stdout is redirected it will become buffered while it is normally
unbuffered when connected to a terminal. This mean that if the unit exits
prematurely, the output in the buffered output will be lost.
As the unit test x_msg mock implementation prints even fatal on stdout
we ensure with this setup method that stdout is also unbuffered.
Change-Id: I5c06dc13e9d8ab73997f79b13c30ee8949e5e993 Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240123104358.495517-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28122.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Mon, 22 Jan 2024 13:09:09 +0000 (14:09 +0100)]
Fix ssl unit tests on OpenSSL 1.0.2
OpenSSL 1.1.1 will initialise itself using clever linker magic. For
OpenSSL 1.0.2 we need to manually initialise the library. For other
unit tests just doing the OpenSSL_add_all_algorithms is enough but
this unit test needs a more complete initialisation.
Change-Id: I378081f391ad755d0a6fd5613de5c2a8bacc389a Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240122130909.10706-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28112.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
--http-proxy-user-pass: allow to specify in either order with --http-proxy
Previously, when using a third argument to --http-proxy other
than auto/auto-nct, order did matter between --http-proxy and
--http-proxy-user-pass. Always prefer --http-proxy-user-pass
when given.
Change-Id: I6f402db2fb73f1206fbc1139c47d2bf4378376fa Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240122092122.8591-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28099.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
NTLM: when NTLMv1 is requested, try NTLMv2 instead
Commit 21910ebc2ee8a6138eb2af8d38056d2b94e59f9c removed
support for NTLMv1 authentication. This adjusts the
behavior for existing configurations that specify
"ntlm" keyword.
Do not error out hard, instead just try to upgrade. This
should work fine in many cases and will avoid breaking
user configs unnecessarily on upgrade.
In addition it fixes an issue with the mentioned patch
where "auto" wasn't working correctly for NTLM anymore.
Change-Id: Iec74e88f86cd15328f993b6cdd0317ebda81563c Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20240118151242.12169-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/search?l=mid&q=20240118151242.12169-1-gert@greenie.muc.de Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Thu, 18 Jan 2024 13:55:30 +0000 (14:55 +0100)]
Remove conditional text for Apache2 linking exception
With the reimplementation of the tls-export feature and removal/approval
or being trivial of the rest of the code, now all the code falls under
new license. Remove the conditional text of the license to be only valid
for parts of OpenVPN.
Fix various 'Uninitialized scalar variable' warnings from Coverity
These are all not actually problems, since the
uninitialized parts are either .unused members of the
struct (mroute_addr) or only written to (buflen), but
still doesn't hurt to explicitely initialize them.
Change-Id: I45cd0917d24570ae9e9db7eb6c370756e4595842 Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20231008103641.19864-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27157.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Heiko Hund [Wed, 17 Jan 2024 13:49:29 +0000 (14:49 +0100)]
cmake: symlink whole build dir not just .json file
It turned out that symlinking compile_commands.json from the top level
source dir has some issues:
* file is not created on Windows and symlinking may cause an error
* some IDEs create their own json and error out b/c a file exists
Since clangd also looks for the json in build/ directories by default,
we now symlink the whole build directory instead, not just the json file.
This approach requires for the existing build/ dir in the repo to
vanish. Luckily it only contains one automake include file, which is
moved to the top level source dir.
Lastly, make this an opt-in feature, so that the default configuration
of the buildsystem never causes a build failure because of this.
Change-Id: Ib1a5c788269949d8de95d1da2cb0c32a65bf13f2 Signed-off-by: Heiko Hund <heiko@ist.eigentlich.net> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240117134929.5317-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28061.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
NTLM: increase size of phase 2 response we can handle
With NTLMv2 the target information buffer can be rather large
even with normal domain setups.
In my test setup it was 152 bytes starting at offset 71.
Overall the base64 encode phase 2 response was 300 byte long.
The linked documentation has 98 bytes at offset 60. 128 byte
is clearly too low.
While here improve the error messaging, so that if the buffer
is too small at least one can determine that in the log.
Change-Id: Iefa4930cb1e8c4135056a17ceb4283fc13cc75c8 Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240117090840.32621-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28040.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Tue, 16 Jan 2024 21:41:52 +0000 (22:41 +0100)]
Add test_ssl unit test and test export of PEM to file
This introduces a number of mock function to be able to compile
ssl_verify_*.c and ssl_mbedtls.c/ssl_openssl.c into a unit and adds
quite a number of files to that unit. But it allows similar unit tests
(in term of dependencies) to be added in the future.
Change-Id: Ie248d35d063bb6878f3dd42840c77ba0d6fa3381 Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240116214152.27316-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28028.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Tue, 16 Jan 2024 13:18:31 +0000 (14:18 +0100)]
Use mingw compile definition also to unit tests
Currently we only apply the defines for windows APIs and Unicode to
OpenVPN itself. We should rather treat the unit tests the same as
our main binary to reduce potential differences.
Change-Id: Ie5aa643ab6190262f7c8b9e614bedb398e85859b Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240116131831.31217-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28019.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Tue, 16 Jan 2024 10:15:56 +0000 (11:15 +0100)]
Implement the --tls-export-cert feature
This is a re-implementation of the --tls-export-cert feature. This
was necessary to due to missing approval to re-license the old
(now removed) code. The re-implementation is based on the following
description of the feature provided by David:
Add an option to export certificate in PEM format of the remote
peer to a given directory.
For example: --tls-export-cert /var/tmp
This option should use a randomised filename, which is provided via a
"peer_cert" environment variable for the --tls-verify script or the
OPENVPN_PLUGIN_TLS_VERIFY plug-in hook.
Once the script or plugin call has completed, OpenVPN should delete
this file.
Change-Id: Ia9b3f1813d2d0d492d17c87348b4cebd0bf19ce2 Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240116101556.2257-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28014.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Mon, 8 Jan 2024 17:13:49 +0000 (18:13 +0100)]
Move get_tmp_dir to win32-util.c and error out on failure
Currently we only warn in get_tmp_dir fails and set o->tmp_dir to
a null pointer. This will not be caught by check_file_access_chroot
either since that ignores NULL pointers but other parts of OpenVPN
will assume that tmp_dir is set to a non-NULL string.
Also move get_tmp_dir to win32-util.c to use it in unit tests.
Change-Id: I525ccf7872880367b248ebebb0ddc83551498042 Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20240108171349.15871-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27964.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Steffan Karger [Fri, 5 Jan 2024 13:57:42 +0000 (14:57 +0100)]
Fix IPv6 route add/delete message log level
We have D_ROUTE for route addition/deletion messages, which prints at
loglevel 3. Use that for IPv6, like we do for IPv4 to reduce terminal
spam for non-legacy-networking setups. Prvious code would print the
messages at --verb 1.
Signed-off-by: Steffan Karger <steffan@karger.me> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240105135742.21174-1-steffan@karger.me>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27954.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Fri, 5 Jan 2024 14:05:40 +0000 (15:05 +0100)]
Make it more explicit and visible when pkg-config is not found
Users seem to struggle to read the full error message. This adds an
indication if pkg-config is actually found to the warning/error message
that use pkg-config.
On platforms that do not require pkg-config and for optional libraries,
the existence of pkg-config is mentioned as part of the error/warning message.
When found:
configure: error: libnl-genl-3.0 package not found or too old. Is the development package and pkg-config (/usr/bin/pkg-config) installed? Must be version 3.4.0 or newer for DCO
not found:
configure: error: libnl-genl-3.0 package not found or too old. Is the development package and pkg-config (not found) installed? Must be version 3.4.0 or newer for DCO
On platforms where pkg-config is required (only Linux at the moment),
configure will abort when not detecting pkg-config:
checking for pkg-config... no
configure: error: pkg-config is required
Change-Id: Iebaa35a23e217a4cd7739af229cbfc08a3d8854a Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Antonio Quartulli <a@unstable.cc>
Message-Id: <20240105140540.14757-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27939.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Thu, 4 Jan 2024 14:02:14 +0000 (15:02 +0100)]
Check PRF availability on initialisation and add --force-tls-key-material-export
We now warn a user if the TLS 1.0 PRF is not supported by the cryptographic
library of the system. Also add the option --force-tls-key-material-export
that automatically rejects clients that do not support TLS Keying Material
Export and automatically enable it when TLS 1.0 PRF support is not available.
Change-Id: I04f8c7c413e7cb62c726262feee6ca89c7e86c70 Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20240104140214.32196-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27924.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Gert Doering [Mon, 1 Jan 2024 09:27:14 +0000 (10:27 +0100)]
get_default_gateway() HWADDR overhaul
commit f13331005d5a7 (gerrit/454) most painfully works around the limitations
of the SIOCGIFCONF API, with struct member access on an unaligned buffer,
possibly overrunning sockaddr structures, etc. - and the result still did
not work on OpenSolaris and OpenBSD (no AF_LINK in the returned elements).
Reading through OpenBSD "ifconfig" source, I found getifaddrs(3), which
is exactly what we want here - it works on FreeBSD, NetBSD, OpenBSD and
MacOS, and all returned pointers are properly aligned, so the code gets
shorter, easier to read, and UBSAN is still happy.
OpenSolaris does have getifaddrs(3), but (surprise) it does not work, as
in "it does not return AF_LINK addresses". It does have SIOCGIFHWADDR,
instead, and "man if_tcp" claims "should behave in a manner compatible
with Linux" - so TARGET_SOLARIS gets a copy of the Linux code now (works).
Signed-off-by: Gert Doering <gert@greenie.muc.de> Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <20240101092714.18992-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27891.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Gert Doering [Mon, 1 Jan 2024 09:40:54 +0000 (10:40 +0100)]
OpenBSD: repair --show-gateway
OpenBSD route sockets do not want to be passed RTA_IFP on RTM_GET
- if we do this, we get back EINVAL.
On other platforms, if we do not request RTA_IFP, we will not get
back interface information for queried routes - on OpenBSD, RTA_IFP
comes back always...
So we need to #ifdef this, RTA_IFP on all platforms except OpenBSD.
(Found this fix in OpenBSD's ports tree, in their patches for OpenVPN
2.6.8 - but they just remove RTA_IFP, no #ifdef, so we can't just apply
their patch)
While at it, add M_ERRNO to the "write to routing socket" error message.
Signed-off-by: Gert Doering <gert@greenie.muc.de> Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <20240101094054.38869-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27892.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Sun, 31 Dec 2023 17:34:31 +0000 (18:34 +0100)]
Fix unaligned access in macOS, FreeBSD, Solaris hwaddr
The undefined behaviour USAN clang checker found this.
This fix is a bit messy but so are the original structures.
Since the API on Solaris/Illuminos does not return the AF_LINK
sockaddr type we are interested in, there is little value in
fixing the code on that platform to iterate through a list
that does not contain the element we are looking for.
Add includes stddef.h for offsetof and integer.h for max_int.
Change-Id: Ia797c8801fa9a9bc10b6674efde5fdbd7132e4a8 Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20231231173431.31356-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27885.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Due to the limitation of the protocol it is not
considered secure. Better to use basic auth instead
of a false sense of security. NTLM v2 remains
supported for now.
Change-Id: I0dcb2dac4136f194da7050a8ea8495e9faba9dd9 Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20231230143733.4426-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27862.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
yatta [Thu, 19 Oct 2023 17:12:13 +0000 (01:12 +0800)]
fix(ssl): init peer_id when init tls_multi
When openvpn run in UDP server mode, if ssl connections reach the
max clients, the next connection would be failed in `multi_create_instance`
and the half connection will be close in `multi_close_instance`, which
may lead array `m->instances[0]` covered unexpectedly and make the
first connection interrupt, this patch fix this problem by init `peer_id`
with `MAX_PEER_ID` in `tils_multi_init`.
Signed-off-by: yatta <ytzhang01@foxmail.com Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <tencent_C49D67EAA5678D180C293706A9469EFE8307@qq.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27260.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Wed, 13 Dec 2023 10:53:08 +0000 (11:53 +0100)]
Extend the error message when TLS 1.0 PRF fails
This error will probably become more and more common in the future when
more and more systems will drop TLS 1.0 PRF support. We are already
seeing people stumbling upon this (see GitHub issue #460)
are not very helpful for people that do not have deep understanding
of TLS or the OpenVPN protocol. Improve this message to give a normal
user a chance to understand that the peer needs to be OpenVPN 2.6.x or
newer.
Change-Id: Ib3b64b52beed69dc7740f191b0e9a9dc9af5b7f3 Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20231213105308.121460-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27796.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Lev Stipakov [Wed, 20 Dec 2023 13:36:37 +0000 (14:36 +0100)]
tun.c: don't attempt to delete DNS and WINS servers if they're not set
Commits
1c4a47f7 ("wintun: set adapter properties via interactive service") 18826de5 ("Set WINS servers via interactice service")
added functionality of add/remove DNS/WINS via interactive
service, which is used mostly by dco-win and wintun (tap-windows6
normally uses DHCP). There is a check in code - if DNS/WINS addresses
are not pushed, nothing is added.
However, due to bug we always attempted to remove DNS/WINS,
even if nothing was added. Removing WINS, for example, could take
up to 3 seconds.
This change fixes this by improving check "has DNS/WINS been pushed?".
While on it, convert do_XXX_service() functions to "void" from "bool",
since we never check their return values.
Change-Id: I21a36d24f8e213c780f55acbe3e4df555c93542a Signed-off-by: Lev Stipakov <lev@openvpn.net> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20231220133637.60996-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27843.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Heiko Hund [Wed, 20 Dec 2023 12:36:59 +0000 (13:36 +0100)]
cmake: create and link compile_commands.json file
CMake has support to create a json file which contains exact information
how each file in the project is compiled. This file can be consumed by
clangd, which in turn provides precise symbol information to IDEs for
better code navigation and contextual information.
I use it with vscode to be able to quickly switch between native Linux and
mingw builds and have the symbols info change dynamically with it. So
handy that I think it is useful for others as well.
Bump required CMake version for CREATE_LINK.
Change-Id: Ib14c1161b4b0c9df797b9932ad14739e202cea64 Signed-off-by: Heiko Hund <heiko@ist.eigentlich.net> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20231220123659.55542-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27840.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Serial mode is the old one and offers much less options for
running the tests. Generally our tests seem to work fine
with the newer parallel mode. The only reason we stuck with
serial_tests seems to be that we didn't like that it doesn't
output the test output by default. We could fix that with a
custom test driver. But will put that into a separate commit.
Change-Id: Ic7265d89142637b0963a6847c6beb06d9163bbb1 Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20231214111635.237429-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27812.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
David Sommerseth [Wed, 22 Nov 2023 19:00:57 +0000 (20:00 +0100)]
Remove superfluous x509_write_pem()
After removing --tls-export-cert, this function was left in the code
base with no other users. This was an oversight in the previous
change. Removing it to avoid leaving dead code behind.
Signed-off-by: David Sommerseth <davids@openvpn.net> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20231122190057.120384-1-dazo+openvpn@eurephia.org>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27561.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
David Sommerseth [Wed, 22 Nov 2023 14:31:01 +0000 (15:31 +0100)]
Remove --tls-export-cert
As OpenVPN 2.6+ is doing some adoptions to the license text, all
prior contributors need to accept this new text. Unfortunately, Mathieu
Giannecchini who implemented the --tls-export-cert feature did not
respond at all. Without an explicit acceptance we need to remove this
feature to avoid potential legal complications.
If this is still a wanted feature, it will need to be re-implemented
from scratch.
Signed-off-by: David Sommerseth <davids@openvpn.net> Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <20231122143101.58483-1-dazo+openvpn@eurephia.org>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27557.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Tue, 28 Nov 2023 10:37:04 +0000 (11:37 +0100)]
Rename state_change to continue_tls_process
The name state_change is more confusing than helpful as it not really
indicates if there was a state change but rather if processing should
be continued. There even some states that are definitively state changes
(setting to_link buffer) that require continue_tls_process to be set
to false.
Change-Id: Ib6d713f2eb08a4c39d97de3e1a4a832cedc09585 Acked-by: Frank Lichtenheld <frank@lichtenheld.com> Signed-off-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <20231128103704.61046-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27571.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Tue, 28 Nov 2023 10:39:50 +0000 (11:39 +0100)]
Remove compat versionhelpers.h and remove cmake/configure check for it
The cmake file defined that file to be never present in contrast to the
old msvc-config.h that always had it present.
Remove also the compat implementation taken from mingw. All our current
build environments already have that header in place.
Change-Id: I9c85ccab6d51064ebff2c391740ba8c2d044ed1a Acked-by: Frank Lichtenheld <frank@lichtenheld.com> Signed-off-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <20231128103950.62407-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27573.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Recent autoconf warns:
configure.ac:448: warning: The macro `AC_TYPE_SIGNAL' is obsolete.
And it turns out that we do not actually use RETSIGTYPE.
Additionally, there is no reason to do so since as the
autoconf documentation says:
"These days, it is portable to assume C89, and that signal
handlers return void, without needing to use this macro or
RETSIGTYPE."
Change-Id: I7da7c2d7d34c7e5efd52d448646b4398a1005e77 Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com> Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20231128103740.61160-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27572.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
Arne Schwabe [Tue, 28 Nov 2023 10:43:59 +0000 (11:43 +0100)]
Fix check_session_buf_not_used using wrong index
The inner loop used i instead of j when iterating through the buffers.
Since i is always between 0 and 2 and ks->send_reliable->size is
(when it is defined) always 6 (TLS_RELIABLE_N_SEND_BUFFERS) this does not
cause an index of out bounds. So while the check was not doing anything
really useful with i instead of j, at least it was not crashing or
anything similar.
Noticed-By: Jon Williams (braindead-bf) on Github issue #449
Change-Id: Ia3d5b4946138df322ebcd9e9e77d04328dacbc5d Signed-off-by: Arne Schwabe <arne@rfc2549.org> Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20231128104359.62967-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27576.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
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