- Support legacy algorithms while decrypting keys by loading
legacy provider unless default pros has fips enabled.
- Use the recommended PKCS8 format and AES-256-CBC cipher when
encrypting PEM keys.
For PKCS12, OpenSSL's default is used which is PBKDF2 with
AES-256-CBC in OpenSSL 3.0
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- Set env variables such as OPENSSL_CONF and OPENSSL_MODULES
- Replace deprecated initialization (since OpenSSL 1.1.0)
by OpenSSL_init_crypto()
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- remove vcpkg manifest and use whatever openssl
version is installed. To build with openssl3, one could
use openssl3 port from openvpn/contrib/vcpkg-ports.
- build with openssl1.1.1 and openssl3 in GitHub Actions
Signed-off-by: Lev Stipakov <lev@openvpn.net>
Replace old wcstok signature with security-enhanced
version, which stores position information between calls in
"context" parameter instead of internal per-thread context.
This allows to get rid of _CRT_NON_CONFORMING_WCSTOK
define in CMakeLists.txt
Reported-by: Kai Schtrom
Signed-off-by: Lev Stipakov <lev@openvpn.net>
* Provide more space for challenge dialog text
We do use a re-sizeable dialog box for dynamic challenge-response
to cater for potentially long lines of challenge text. But the
space specified for the widget is enough for only a single short line
(~60 characters) of text.
Increase the horizontal and vertical space to allow for up to
two lines of ~120 characters per line.
The default size of the Window is not changed. But it is
automatically resized if the space required for the text
is longer than the window width minus some margin. The max
horizontal size of the window is capped at 640 nominal pixels
as longer text will be wrapped in to two lines.
Github issue #468
Signed-off-by: Selva Nair <selva.nair@gmail.com>
The user is prompted with a message showing the config
name that will be imported. The user can accept or cancel
the operation.
If the user was already prompted for over-write permission
because a config with the same name exists, no further dialog
is shown.
Import using the menu (Import File...) is not affected.
Rationale:
We want to set "Import" as the default verb for the context
menu of .ovpn files. This will allow import of configs by
double-click. Also when .ovpn file is downloaded using a browser,
setting the default bowser action to "open" will result in an import.
In such cases a silent import action could be surprising, and a
prompt showing what is being imported could provide a better UX.
On the flip-side, the prompt/dialog will also be shown when import
is done from the context menu of .ovpn by "right click and
choose import" or when "openvpn-gui.exe --import foo"
or "openvpn-gui.exe --command import foo" is executed. As import
is an action that does not result in an immediately visible result
(unlike, say, edit or print), a prompt requiring user action is of
some value even in these cases. At worst it's a minor annoyance.
See also: https://github.com/OpenVPN/openvpn-build/pull/227
and discussions there-in
Signed-off-by: Selva Nair <selva.nair@gmail.com>
When we link with natively-built OpenSSL .DLLs
(not cross compiled with MinGW), we are expected to include
applink.c, which provides glue between OpenSSL BIO layer
and compiler run-time. This doesn't apply to ARM64.
Failure to do that results in "no OPENSSL_Applink" fatal error
during password change.
See the corresponding fix in openvpn2:
https://sourceforge.net/p/openvpn/mailman/message/37361982/
Signed-off-by: Lev Stipakov <lev@openvpn.net>
When clicking on tray icon, menu items are deleted and then recreated.
Deletion uses o.num_config:
for (i = 0; i < o.num_configs; i++)
DestroyMenu(hMenuConn[i]);
Commit 8e4183f9 ("Add '--command import' command line option")
added BuildFileList() call which modifies o.num_configs
but doesn't touch menus. When clicking on tray icon after import,
abovementioned code attemps to access invalid item in hMenuConn array
and crashes when this is the first imported profile and hMenuConn is NULL.
In other DestryMenu is called with invalid argument.
Fix by recreating popup menus instead of just rescan file list -
this will first delete menus with correct o.num_config value.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
If the http header "Content-Disposition:" is present take the
filename specified in there as the name of the imported profile,
falling back to scanning the file contents for metadata.
If both filename= and filename*= attributes are present, the
latter takes precedence provided the character set is utf-8.
(Extended attributes as defined in RFC 5987).
In case of import from AS, the behaviour is unchanaged.
Issue: #450.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Less intrusive than a message box that user has
to close. Also the imported filename stub is now
included in the message.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
%S --> %hs in wide format strings, %ls otherwise
%s --> %ls in wide format strings, unchanged otherwise
%c --> %lc in wide format strings
Resource files together have about 970 lines affected and
were edited by looping through all with
sed -i 's/%S/%hs/g' $file
sed -i 's/%s/%ls/g' $file
All other files were manually changed (about 85 lines).
Recent versions of mingw-w64 implicitly turns on __USE_MINGW_ANSI_STDIO
if _GNU_SOURCE, _XOPEN_SOURCE etc are defined (which we do usei).
This breaks non-standard spec such as %S. Anyway, we have been
gradually getting rid of those.
MSVC builds should not be affected.
v2: multiple occurrences in same line was missed in v1 (/g missing in
sed expression). Fixed.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- HTTP auth password appears to be cached and reused
unless replaced by a non-empty string. When user-supplied
password is empty, use some arbitrary string "x" as the
password.
- Make username required for generic URL as well.
- Also clear password buffers after use.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Download profile from AS or URL use blocking network calls
in the main thread. Set reasonable timeouts for connect
and receive.
TODO: This is not perfect as the download can still stall
in erratic links, and we have no way to abort. Ideally
we should either use Async calls and/or threads.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
For Import from URL, require that response
from server must have
content-type: application/x-openvpn-profile
This reduces chances of mistyped input causing
import of random html pages as connection profile.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
ParseUrl extended to parse generic URLs and parse
the path. DownloadProfile() function re-factored
for reuse with generic URL.
Also:
- INTERNET_FLAG_RELOAD added to the request
call to force reloading the data from server instead
of using possibly cached data.
- Input box for URL extended in length to about
50 characters wide.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Import a config file from command line as
`openvpn-gui.exe --command import <file-path>`
The command is send to a running instance if any.
Otherwise the GUI extecutable is started and
the import processed.
`openvpn-gui --import <file-path>`
is interpreted as the same command.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Currently we construct the destination path and check whether
it exists. This could miss a connection profile with same
name in another directory.
If a config with same name is found we set it as the destination,
and ask the user for permission to overwrite. However, if the duplicate
is in the global_config_dir, the behaviour is not changed -- that is,
the config is imported with no further prompts.
Also fix the use of same buffer as destination and source in
swprintf(). It seems to work, but is not 'legal'.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Allow users to bypass HTTPS is not good, but may nevertheless be useful during development.
DEBUG macro is widely used in openvpn-gui code but was missing from CMakeLists.txt, so add it there.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
When 2FA is enabled, server (such as AS)
replies with HTTP 401 and issues a challenge.
Use existing facilities to parse CRV message
and prompt user for a response, then call REST
method again with encoded response as HTTP auth password.
See https://github.com/OpenVPN/openvpn3/blob/master/doc/webauth.md#challengeresponse-authentication
for more information.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
Use WinInet to download profile into memory buffer.
If there are certain certificate errors (invalid CN,
wrong date, unknown CA, revocation check failed),
ask if user wants to continue.
Extract profile name from content, sanitize name and
save profile in temp directory. Then import profile
using existing facilities.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
Factor out importing part (everything except file open dialog)
into separate function, which can be used when importing
profile from URL.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
This is the first patch from series which implemets
importing profile from URL, currently implemented
by OpenVPN Access Server.
Move "Import from file" menu item under new "Import"
item. Add "Import from AS..." item under "Import", which
opens new profile import dialog.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
Commit 131c75e5 ("Notify dialog windows when OpenVPN state changes") added callback
function, but forgot to specify __stdcall calling convention with CALLBACK keyword.
This is not an issue for x64 builds, but x86 requires __stdcall calling convention for callbacks,
otherwise compiler throws an error:
Error: D:\a\openvpn-gui\openvpn-gui\openvpn.c(292): error C2440: 'function': cannot convert from 'BOOL (__cdecl *)(HWND,LPARAM)' to 'WNDENUMPROC'
Reported-by: Samuli Seppänen <samuli@openvpn.net>
Signed-off-by: Lev Stipakov <lev@openvpn.net>
Currently we show a messagebox with OK/CANCEL when response is
not required but that cannot handle state change messages.
Instead, show the "GenericPass" dialog with input disabled.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Use a custom message to pass state change notification from OpenVPN
to all top level windows in the thread. Currently only the pending auth
dialog responds to this message by closing when the state changes.
The state change could be due to timeout, errors or success via
out-of-band authentication which makes the dialog no longer valid.
The case of CR_TEXT messages that do not require a response is handled
in the next commit.
See also issue #440https://github.com/OpenVPN/openvpn-gui/issues/440
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- Also add an edit box for setting the mute interval for
repeated echo messages. To be specified in hours
>=0. A zero value disables muting.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
As with CRV1, submit an empty string as the response.
Our base64-encode functiton can handle empty input to generate
an empty string as output.
Also make ensure the message box is shown in foreground,
and not dependent on the status window which may be hidden.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
This adds support for crtext method of pending authentication,
used by Access Server 2.7 and newer.
When enabled on the server side and on the client side (IV_SSO=crtext),
server returns AUTH_PENDING with Info command like:
CR_TEXT:R,E:Enter Authenticator Code
Client prompts user for the response and sends base64-encoded response
to the server via management interface command:
cr-response SGFsbG8gV2VsdCE=
See https://github.com/OpenVPN/openvpn/blob/master/doc/management-notes.txt (crtext part)
for more information.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
This adds support for web-based extra authentication, which may be
used by OpenVPN Cloud. When enabled and client sends IV_SSO=openurl,
server pushes Info command OPEN_URL:<url>. The client opens that URL and
user authenticates.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
Selva Nair