- commit f8a243fbe introduced removing the tray icon during
the wait for exit to avoid further user interaction. This
is done in StopAllOpenVPN(). However, this function is also
reused for processing WM_OVPN_STOPALL message received from
a second instance via --comamnd disconnect_all. In this case
the tray icon should not be removed as we are not exiting.
Fixes issue #607
Signed-off-by: Selva Nair <selva.nair@gmail.com>
During the wait for threads to exit, we no longer sleep, but
continue pumping messages. Disable the tray icon during this
period to not allow user interaction with the main menu.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- The wait function optionally calls IsDialogMessage() if a dialog
handle is specified. For other customizations the caller can
install a WH_MSGFILTER hook. The hook will get called with
nCode = MSGF_OVPN_WAIT and lParam = &msg.
- Use this in place of Sleep in main.c, scripts.c and PLAP dll.
Fixes#576
Signed-off-by: Selva Nair <selva.nair@gmail.com>
For all dialogs in a thread, set its status window in the same
thread as the owner.
Also set the owner of message boxes appropriately instead of
using NULL. This has the side effect of some of the modal message
popups blocking access to the status Window until dismissed.
Next:
Replace Sleep by a wait that pumps messages.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- WM_CLOSE is sent if the process is terminated from task manager
or by taskkill etc. Waiting for user confirmation in such cases
leads to abnormal termination of process leaving behind openvpn.exe,
active connections state not saved to the registry etc.
CloseApplication() now gets a second argument ask_user.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Currently we use an array of connection pointers which needs
to be reallocated when space runs out. But, that happens from
the main thread while the status thread may be referring to those
pointers. Its very hard to fence against possible invalid memory
access. Instead, use a list so that connection pointer never
changes once created.
The connection list is no longer recreated from scratch even when
no connections are active. This means configs added while GUI is
running will always appear at the bottom of the root group listing
until the GUI is restarted.
TODO: This behaviour could be improved by scanning through the groups to
graft new configs at the right branch in the config-group tree.
v2: removed unused references to SetMenuStatusById()
Signed-off-by: Selva Nair <selva.nair@gmail.com>
New feature: any connection that is not disconnected on exit
will auto-connect when the GUi is started the next time.
There is no option to toggle auto-connect of any profile. Instead,
just connect normally and leave the connection open while closing the
GUI directly or indirectly (on logout, for example). Such a connection
will auto-connect when the GUI is started the next time.
If auto-connect is not desired for a particular connection, stop it
before exit. Or, the whole feature may be disabled in the setings menu
(implemented in next commit).
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- Add a function to check flow direction of currently selected
UI language
- Add MB_RIGHT|MB_RTLREADING to message boxes when language is RTL
Note: though we use MessageBoxEx() for popups, and pass langId to it,
buttons like OK/Cancel are not automatically localized. It seems these
get localized based on the current locale, not the langID passed in.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
CheckServiceStatus() return value is never used - the status
is set to global options_t struct.
While on it, remove unneccessary "false" argument
and reformat the code.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
Connection profiles shown on the login screen using PLAP
requires automatic service that starts openvpn.exe
processes for these profiles.
This commit adds an attempt to start the service from
PLAP dll. The service is started only if any PLAP enabled
profiles are found.
As starting the service can spawn up OpenVPN.exe processes and
the GUI may attach to them, auto-connect in the GUI is
suspended during session lock to leave the connections free to
be controlled from PLAP screen.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
(i)
State is changed to detached before auto-starting
so that OnHold() will see state = resuming and keep the hold.
State is set to disconnected instead of detached on detach
so that manual starts will release the hold automatically.
End result: While connecting automatically, do not release if
management-hold is on. But while started manually, release
from hold so that connection can complete without further
user action.
In normal use of automatic service, one would not add management
hold into the config. However, if the user disconnects the connection
the GUI puts it on hold, and we do not want to auto-start it after a
lock-unlock or some other automatic action.
(ii)
Also, currently, for persistent connections, the status
window is not shown automatically which feels unnatural in
real use. Instead, popup the status window when connection
is manually initiated. Its not popped up when automatically
attached to or if silent_connection is on.
Only persistent connections are affected by the change.
fixup: config file list is not recreated from scratch when
enable_persistent == 2 (auto attach mode) to avoid losing info
such as auto_connect = false on detached connections.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
This allows a new user to attach to the mgmt i/f of
persistent connections which would be otherwise blocked
by the previously logged in user.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Useful for releasing the management interface if the user wants to
connect to it by other means.
Detached connections are set to state = detached (no disconnected)
and auto_connect disabled, so that they could be handled properly
during a re-attach.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- Parse the config-auto folder used by automatic service
and mark these profiles as persistent.
- These connections are marked as auto_connect to try
attaching to them at start up with periodic retry in
case the daemon or service are restarted.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- Remove service-only mode (start/stop service) which has not been in
use since we moved to running the GUI as limited user.
Also its not very useful as it does not allow any control of
service-started daemons
- Keep CheckServiceStatus and always check the status of
automatic service.
The status of the service will be used to toggle supporting
control of persistent connections started by the service.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Persistent connections have openvpn.exe daemon started
external to the GUI (e.g., by the automatic service).
This patch adds support for attaching to the management
i/f of such daemons from the GUI and control the connection.
The GUI never stops or starts the openvpn.exe process in this
case. Instead, connect and disconnect buttons signal the
management interface of a running openvpn.exe process to start
the tunnel by attaching to mgmt i/f and sending hold-release if
needed or stop it and wait in management-hold state
(see DisconnectDaemon()).
When the GUI process exits, persistent connections are left in their
current state using DetachOpenVPN().
No connections are marked as persistent as yet. That is done
in a following commit.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
In some cases the service may take a while to startup openvpn.exe,
causing connection to the management interface to timeout. This could
leave behind the OpenVPN process if/when it eventually starts up.
(Trac 905, 1050).
As errors in starting up the OpenVPN daemon are independently
handled, its better to keep retrying the management interface connection
until aborted due to errors or by the user.
- On timeout, log a message on the status window and retry the
management interface connection
- Eliminate the timed-out state that is no longer used
- Call StopOpenVPN() before abort so that OpenVPN daemon
is not left running in case it starts up later.
- In the unlikely event that OpenManagement() fails, show an error
- User can abort by pressing disconnect
A "retrying.." message is logged on to the status window every
15 seconds.
See Trac: #905, #1050
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>
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>
%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>
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>
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>
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>
By some reasons Release build ignores _INC_MATH and includes math.h,
which conflicts with our own log definition. Rename it to log_.
While on it, also rename other enum names for consistency.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
We currently use WM_COMMAND message which is delivered with the
ID of the menu item requiring a unique ID for every command
(connect, disconnect etc..) for each connection profile. Instead,
use WM_MENUCOMMAND so that the message delivers a handle to the
menu and the position index of the menu item.
Connection menu array is now dynamically allocated. Yet, there
is still a limitation on the number of configs as the config
index + mgmt_port_offset must be < 65536 to be usable as a port
number. The error message shown for "too many configs" is reworded.
(English language file only).
Note: The current way of selecting the management port based on the
index of the config file increases chances of port conflicts
when the number of configs is large. It could be useful to change
this logic but that is beyond the cope of this PR.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Change the way echo-msg window is update (thread safety).
When new echo-msg content is available for display, update the window
from the thread owning it by sending a message to it.
A blocking SendMessage (with a timeout) is used, as the window
needs access to the config's echo-msg buffer which is cleared
on return from this this call.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- Add a message box that support appending messages with
a title formatted at a larger font and a text
displayed in the default font.
- A global instance of the message box is used to
display messages from all profiles.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Process four new echo commands to construct messages to be
displayed to the user:
echo msg message-text
echo msg-n message-text
echo msg-window message-title
echo msg-notify message-title
Note: All rules of push and echo processing apply and determine
what is received as echo commands by the GUI. In addition,
'url-encoded' characters (% followed by two hex digits) are
decoded and displayed.
The message is constructed in the GUI by concatenating the text
specified in one or more "echo msg text" or "echo msg-n text"
commands. In case of "echo msg text" text is appended with a new
line. An empty text in this case will
just add a new line.
The message ends and gets displayed when one of the following
are receieved:
echo msg-window title
echo msg-notify title
where "title" becomes the title of the message window. In case of
msg-window, a modeless window shows the message, in the latter case
a notification balloon is shown.
Example: when pushed from the server:
push "echo msg I say let the world go to hell%2C"
push "echo msg I must have my cup of tea."
push "echo msg-window Notes from the underground"
will display a modeless window with title
"Notes from the underground" and a two line body
--
I say let the world go to hell,
I must have my cup of tea.
--
Note that the message itself is not quoted in the above examples
and so it relies on the server's option-parser combining
individual words into a space separated string. Number of words
on a line is limited by the maximum number of parameters allowed
in openvpn commands (16). This limitation may be avoided by quoting
the text that follows so that the option parser sees it as one
parameter.
The comma character is not allowed in pushed strings, so
it has to be sent encoded as %2C as shown above.
Such encoding of arbitrary bytes is suppored. For example,
newlines may be embedded as %0A, though discouraged. Instead
use multiple "echo msg" commands to separate lines by new line.
An example with embedded spaces and multiple lines concatenated
without a new line in between (note use of single quotes):
push "echo msg-n I swear to you gentlemen%2C that to be"
push "echo msg-n ' overly conscious is a sickness%2C ' "
push "echo msg-n a real%2C thorough sickness."
push "echo msg-notify Quote of the Day"
will show up as a notification that displays for an
OS-dependent interval as:
--
Quote of the Day
I swear to you gentlemen, that to be overly conscious
is a sickness, a real, thorough sickness.
--
where the location of the line break is automatically determined
by the notification API and is OS version-dependent.
Commands like "echo msg ..." in the config file are also
processed the same way. It gets displayed when the GUI connects
to the management interface and receives all pending echo.
Pushed message(s) get displayed when the client daemon
processes push-reply and passes on echo directives to the
GUI.
TODO: The actual window that displays the messages is
implemented in the next commit.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
We didn't use interactive service when gui was running
under admin because of some privilege escalation vulnerability in Vista.
Apparently this issue doesn't exist on Win7 and newer versions so
it is safe to use iservice on those systems.
Introduce "Always use interactive service" option,
which is "on" by default. This should enable users,
who by various reasons run gui as admin, use Wintun.
When gui is running as admin and interactive service
cannot be started or not installed, warn that wintun will not work.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
- Prompt the user for permission if import may overwrite
an existing config.
- Also raise an error if the import file source matches the
global or local config directory. Reimporting a config on to
itself is not supported. This also avoids ERROR_SHARING_VIOLATION
in CopyFile() when source and destination are the same.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Add an new command 'rescan' that may be sent to a running
instance of the GUI to force it rescan the config folders.
Use case: with an instance of the is GUI running, one can
manually copy a config file to the config folder and start
it using "openvpn-gui --command rescan" followed by
"openvpn-gui --command connect foo"
v2: The calls to rebuild config file list and recreate
menus is refactored into a function.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
found by cppcheck
[main.c:457] -> [main.c:457]: (warning) Either the condition 'copy_data->dwData==(WM_APP+15)&&c->hwndStatus&&c' is redundant or there is possible null pointer dereference: c.
The number of configs is now unlimited. But there is a limit
of 2^16 menu items which permits only about 2^12 configs to be
displayed in the menu. A warning is shown if the number of
configs exceeds this value.
For a responsive menu keep the number of configs under ~1000.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
- Group all configs in a subdirectory with directory name
as the label.
- If any connection is active, newly found configs are
added to the root group to keep the logic simple.
- Directory hierarchy is scanned up to a depth of 4: i.e.,
config_dir and global_config_dir and its subdirectories
up to 3 levels down.
Only support for scanning configs and attaching group labels
is added here. Rendering the nested menu is the subject of
a later commit.
Signed-off-by: Selva Nair <selva.nair@gmail.com>
When openvpn is run with --help option it pops up a help
message and exits when that window is closed. Such instances
cannot accept any commands and should not be treated as a
running instance.
Fix by
(i) When run with --help, promptly release the semaphore used
to restrict to a single running instance.
(ii) Wait for a short interval (200 msec) before timing out of
locking the semaphore. This helps avoid race conditions.
While at it also make sure the semaphore is released and closed
on exit.
Fixes issue: #237
Signed-off-by: Selva Nair <selva.nair@gmail.com>
Frank Lichtenheld