The key material, in particular the nonce/IV, is derived differently and
the IV is also generated in a different way. Additionally, the actual
content type is encrypted and there may be optional padding to mask the
actual size of the encrypted data.
For some reason, setting the time zone via TZ to `GST-1GDT` in the utils test
doesn't work anymore (the DST zone is not considered, it's as if only `GST-1`
was configured).
If we pass a pointer to NULL, the memory allocated by OpenSSL has to be
freed with OPENSSL_free(). Otherwise, this can lead to random
crashes/freezes for Windows builds as seen on AppVeyor. To not
complicate things for callers of this macro, we allocate our own memory,
which we already do for other i2d_* calls.
If no valid key is configured (e.g. because it's inadvertently uninitialized),
we should not just reuse the previous key.
The `key_set` flag is not necessary anymore because a non-NULL key is set
during initialization since 6b347d5232 ("openssl: Ensure underlying hash
algorithm is available during HMAC init").
If the peer deletes the CHILD_SA, we recreate it due to the close
action. However, if we create a new TUN device, we do so with a new
VpnService.Builder object and on that the DNS servers were never applied.
The latter happened only on the fly in the attribute handler when an
IKE_SA was established. Now we do this explicitly when creating the TUN
device, like the virtual IPs and routes. While we could avoid the
recreation of the TUN device if the CHILD_SA is recreated, there is the
theoretical possibility that the remote traffic selectors change. This
way we also avoid adding stuff to the builder in different places.
Fixes#3637.
This is not an error (as reflected by the returned status code) so we
should not print to stderr as output there might still be considered an
error (or at least an audit-worthy event) by some scripts.
This adds helper functions to determine the first or last directory separator
in a string and to check if a given character is a separator.
Paths starting with a separator are now also considered absolute on
Windows as these are rooted at the current drive.
Note that it's fine to use DIRECTORY_SEPARATOR when combining strings as
Windows API calls accept both forward and backward slashes as separators.
Co-authored-by: Michał Skalski <[email protected]>
References #3684.
Apparently, we should use OPENSSL_free() to release memory allocated by
OpenSSL. While it generally maps to free() that's apparently not the
case on Windows, where the ECP test vectors caused `ACCESS_VIOLATION
exception` crashes (not always the same vector).
Fixes: 74e02ff5e6 ("openssl: Mainly use EVP interface for ECDH")
Uses the EVP interface for ECDH with newer OpenSSL versions, which,
compared to the previous low-level use of EC_POINT_mul() supports
hardware offloading. We used this because of the ecp_x_coordinate_only
option, which is now removed as it's been obsolete for a long time and
complicated the code. There is still some legacy code for OpenSSL 1.0
and the old BoringSSL version we currently use for the Android app.
Closesstrongswan/strongswan#186.
Functions like ECDH_compute_key() will be removed with OpenSSL 3 (which
will require additional changes as other functions will be deprecated or
removed too).
The previous approach would lead to additional zero prefixes in the
encoding of the serial (which is a positive integer, not an arbitrary
blob).
Fixes#3667.
Also assign online leases to a peer connecting from the same endpoint
when it requests any virtual IP. This is mainly a workaround for
Windows clients that remember the virtual IPv6 address and re-request it
the next time the connection is initiated (even if it is not a
reauthentication) but don't do the same for virtual IPv4 addresses.
This can result in duplicate policies with different reqids because
these are allocated for unique sets of traffic selectors.
Fixes#3541.
This modifies the signature of the listener_t::ike_update() callback so
that both addresses are passed and it's only called once if both
addresses change (e.g. for an address family switch).
The callback is now also triggered for MOBIKE updates and the event is
exposed via vici.
Fixes#3602.
This allows more fine grained control over what's updated and does not
require multiple calls of the method. Plus we'll be able to use it in
the ike-mobike task.
Mainly to test TKM's ability for handling multiple CAs and that the
received intermediate CA certificates are passed in the right order.
But also added a regular scenario where two intermediate CA certificates
are sent by one of the clients.
Depending on from where bison is called, the file might not end up in
the same directory as the .y file, but the location of the Makefile.
This has been seen on FreeBSD.
There is a conflict between Flex's bison-bridge and Bison's api.prefix
options. Apparently, the former was added without consulting the Bison
devs and requires YYSTYPE, which is not added to the header anymore by
the latter. Instead, we just provide the proper definition of yyflex()
manually (as recommended by the Bison docs), so the option is not
required anymore.
On travis-ci.com (travis-ci.org will be discontinued by the end of the
year) we are now charged for each minute. We only got 10000 credits in
a trial plan, which we used up with a few builds. Minutes also cost a
different amount of credits on different platforms: 10 on Linux,
but 50 on macOS (installing the dependencies on macOS alone took 12-15
minutes on Travis for some reason, takes about half on Github's runners).
No native Windows build yet as we have the same issue as on AppVeyor where
threading/streaming tests might get stuck. And there is also only a
single Windows platform to test on. Plus building/testing on Windows is
very slow (and getting ccache to work seems tricky).
The 'sw_collector' test case had to be disabled because we can't access
/usr/local/share on the Github build hosts (the process is just blocked
in readdir() and eventually times out).
Unfortunately, we can't test on different architectures anymore (in
particular ARM and the big-endian IBM Z/x390x).
DESTROY_IF() checks if the given value is not NULL, before calling
destroy() on it, which does not work for sub-structs. If
port_filter_attr is NULL, this could crash.
If we are already deleting the old/redundant CHILD_SA, we must not
migrate the child-create task as that would destroy the new CHILD_SA we
already moved to the IKE_SA.
Fixes#3644.
Without threads handling the resolution, there is no point waiting
for a reply. If no subsequent resolution successfully starts a
thread (there might not even be one), we'd wait indefinitely.
Fixes#3634.
The DN is otherwise not parsed until compared/printed. This avoids
false detections as ASN.1 DN if e.g. an email address starts with "0",
which is 0x30 = ASN.1 sequence tag, and the next character denotes
the exact length of the rest of the string (see the unit tests for an
example).
For apps targeting Android 10, where a method to change this was added, the
default changed so that all VPN connections are marked as metered. This means
certain background operations (e.g. syncing data) are not performed anymore
even when connected to a WiFi. By setting this to false, the metered state
of the VPN connection reflects that of the underlying networks.
This is like building the root image but using a specific strongSwan
source tree, which is helpful if code changes depend on other software
packages (e.g. TKM-related or testing new crypto libraries). If the script
is called and the root image does not exist, the new option is enabled
automatically.
The option to build in a specific guest image is now also moved to an
explicit command line option so that the source dir path is the only
remaining positional argument (see --help for details).
If we check out and build a certain revision of a dependency in a branch and
switch to another that requires a different revision and then switch back,
the previous approach installed the wrong revision as it would incorrectly
assume the required revision was already built and ready to install.
None of our build environments seem to require these declarations. And
current versions of MinGW-w64 define them as inline functions in stdio.h
so these declarations clashed with that ("static declaration of '...'
follows non-static declaration").
In FIPS mode, libgcrypt uses a DRBG, which behaves differently when the
length passed to gcry_create_nonce() or gcry_randomize() is <= 0. It
expects a struct and explicitly checks that the passed pointer is not
NULL.
This ensures that e.g. ike/child-updown messages are sent that were
queued but couldn't be sent (even the job to enable to on_write() callback
requires a worker thread that's not around anymore during shutdown).
References #3602.
The message_t object used for defragmentation was only cleared after
all fragments have been received and the message was delivered. So
if we received only some fragments of a retransmitted message, the
fragments of the next message were not processed (message_t returns
INVALID_ARG if the message ID does not match causing the message to
get ignored). This rendered the IKE_SA unusable as the client
obviously never retransmitted the fragments of that previous message
after it received our response.
Adds support to use IPv6 as transport addresses for IKE and ESP and a
bunch of fixes. On Linux servers, this requires at least a 5.8 kernel so
UDP encapsulation for IPv6 is supported.
Fixes#892.
The parser is quite picky and e.g. doesn't accept UUIDs without dashes.
Even without a specific error, this at least points the users into the
right direction.
Fixes#3583.
If the activity is not active when the service connection is
established and handleIntent() is called, the activity's state is already
saved and any fragment transaction would result in an illegalStateException
due to state loss. We just ignore this and wait for another initiation
attempt (via onNewIntent()).
With the flag set, we basically ignore the resent intent, which is not
ideal if we have not yet actually started another activity. The information
dialog we show first would disappear when closing and reopening the app
or even just rotating it (we hide all dialogs when receiving an intent),
but since the flag was restored, the dialog was not shown again even
when attempting to start other connections.
Note that manually adding an IPv6 address without disabling duplicate
address detection (DAD, e.g. via `nodad` when using iproute2) will cause
a roam event due to a flag change after about 1-2 seconds (TENTATIVE is
removed). If this is a problem, we might have to ignore addresses with
TENTATIVE flag when we receive a RTM_NEWADDR message until that flag is
eventually removed.
Fixes#3511.
We create the child_sa_t object when initiating the CREATE_CHILD_SA
request, however, the IP addresses/ports might have changed once we
eventually receive the response (potentially to a retransmit sent to
a different address). So update them before installing the SA and
policies.
If the local address changed too and depending on the kernel
implementation, the temporary SA created to allocate the inbound SPI
might remain as it can't be updated. This could cause issues if e.g.
the address switches back before that SA expired (the updated inbound
SA conflicts with the temporary one), or if that happens close together
and the expire (having to wait for the address update) causes the
updated SA to get deleted.
Fixes#3164.
Tobias Brunner