forked from OpenVPN/openvpn-gui
-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.c
1163 lines (1021 loc) · 33.7 KB
/
main.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* OpenVPN-GUI -- A Windows GUI for OpenVPN.
*
* Copyright (C) 2004 Mathias Sundman <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see the file COPYING included with this
* distribution); if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#if !defined (UNICODE)
#error UNICODE and _UNICODE must be defined. This version only supports unicode builds.
#endif
#include <windows.h>
#include <versionhelpers.h>
#include <shlwapi.h>
#include <wtsapi32.h>
#include <prsht.h>
#include <commdlg.h>
#include "tray.h"
#include "openvpn.h"
#include "openvpn_config.h"
#include "viewlog.h"
#include "service.h"
#include "main.h"
#include "options.h"
#include "proxy.h"
#include "registry.h"
#include "openvpn-gui-res.h"
#include "localization.h"
#include "manage.h"
#include "misc.h"
#include "save_pass.h"
#include "echo.h"
#include "as.h"
#define OVPN_EXITCODE_ERROR 1
#define OVPN_EXITCODE_TIMEOUT 2
#define OVPN_EXITCODE_NOTREADY 3
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure(HWND, UINT, WPARAM, LPARAM);
static void ShowSettingsDialog();
void CloseApplication(HWND hwnd, BOOL ask_user);
void ImportConfigFileFromDisk();
void ImportConfigFromAS();
static void SaveAutoRestartList();
static void LoadAutoRestartList();
/* Class name and window title */
TCHAR szClassName[] = _T("OpenVPN-GUI");
TCHAR szTitleText[] = _T("OpenVPN");
/* Options structure */
options_t o;
/* Workaround for ASLR on Windows */
__declspec(dllexport) char aslr_workaround;
/* globals */
static HWND settings_window; /* Handle of Settings window */
static int
VerifyAutoConnections()
{
int i;
for (i = 0; i < o.num_auto_connect; i++)
{
if (GetConnByName(o.auto_connect[i]) == NULL)
{
/* autostart config not found */
ShowLocalizedMsg(IDS_ERR_AUTOSTART_CONF, o.auto_connect[i]);
return FALSE;
}
}
return TRUE;
}
/*
* Send a copydata message corresponding to any --command action option specified
* to the running instance and return success or error.
*/
static int
NotifyRunningInstance()
{
/* Check if a previous instance has a window initialized
* Even if we are not the first instance this may return null
* if the previous instance has not fully started up
*/
HANDLE hwnd_master = FindWindow(szClassName, NULL);
int exit_code = 0;
if (hwnd_master)
{
/* GUI up and running -- send a message if any action is pecified,
* else show the balloon */
COPYDATASTRUCT config_data = {0};
int timeout = 30*1000; /* 30 seconds */
if (!o.action)
{
o.action = WM_OVPN_NOTIFY;
o.action_arg = LoadLocalizedString(IDS_NFO_CLICK_HERE_TO_START);
}
config_data.dwData = o.action;
if (o.action_arg)
{
config_data.cbData = (wcslen(o.action_arg)+1)*sizeof(o.action_arg[0]);
config_data.lpData = (void *) o.action_arg;
}
PrintDebug(L"Instance 2: called with action %d : %ls", o.action, o.action_arg);
if (!SendMessageTimeout(hwnd_master, WM_COPYDATA, 0,
(LPARAM) &config_data, 0, timeout, NULL))
{
DWORD error = GetLastError();
if (error == ERROR_TIMEOUT)
{
exit_code = OVPN_EXITCODE_TIMEOUT;
MsgToEventLog(EVENTLOG_ERROR_TYPE, L"Sending command to running instance timed out.");
}
else
{
exit_code = OVPN_EXITCODE_ERROR;
MsgToEventLog(EVENTLOG_ERROR_TYPE, L"Sending command to running instance failed (error = %lu).",
error);
}
}
}
else
{
/* An instance is already running but its main window not yet initialized */
exit_code = OVPN_EXITCODE_NOTREADY;
MsgToEventLog(EVENTLOG_ERROR_TYPE, L"Previous instance not yet ready to accept commands. "
"Try again later.");
}
return exit_code;
}
int WINAPI
_tWinMain(HINSTANCE hThisInstance,
UNUSED HINSTANCE hPrevInstance,
UNUSED LPTSTR lpszArgument,
UNUSED int nCmdShow)
{
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
DWORD shell32_version;
BOOL first_instance = TRUE;
/* a session local semaphore to detect second instance */
HANDLE session_semaphore = InitSemaphore(L"Local\\"PACKAGE_NAME);
srand(time(NULL));
/* try to lock the semaphore, else we are not the first instance */
if (session_semaphore
&& WaitForSingleObject(session_semaphore, 200) != WAIT_OBJECT_0)
{
first_instance = FALSE;
}
/* Initialize handlers for manangement interface notifications */
mgmt_rtmsg_handler handler[] = {
{ ready_, OnReady },
{ hold_, OnHold },
{ log_, OnLogLine },
{ state_, OnStateChange },
{ password_, OnPassword },
{ proxy_, OnProxy },
{ stop_, OnStop },
{ needok_, OnNeedOk },
{ needstr_, OnNeedStr },
{ echo_, OnEcho },
{ bytecount_, OnByteCount },
{ infomsg_, OnInfoMsg },
{ timeout_, OnTimeout },
{ 0, NULL }
};
InitManagement(handler);
/* initialize options to default state */
InitOptions(&o);
if (first_instance)
{
o.session_semaphore = session_semaphore;
}
#ifdef DEBUG
/* Open debug file for output */
if (!(o.debug_fp = _wfopen(DEBUG_FILE, L"a+,ccs=UTF-8")))
{
/* can't open debug file */
ShowLocalizedMsg(IDS_ERR_OPEN_DEBUG_FILE, DEBUG_FILE);
exit(1);
}
PrintDebug(_T("Starting OpenVPN GUI v%hs"), PACKAGE_VERSION);
#endif
o.hInstance = hThisInstance;
if (!GetModuleHandle(_T("RICHED20.DLL")))
{
LoadLibrary(_T("RICHED20.DLL"));
}
else
{
/* can't load riched20.dll */
ShowLocalizedMsg(IDS_ERR_LOAD_RICHED20);
exit(1);
}
/* Check version of shell32.dll */
shell32_version = GetDllVersion(_T("shell32.dll"));
if (shell32_version < PACKVERSION(5, 0))
{
/* shell32.dll version to low */
ShowLocalizedMsg(IDS_ERR_SHELL_DLL_VERSION, shell32_version);
exit(1);
}
#ifdef DEBUG
PrintDebug(_T("Shell32.dll version: 0x%lx"), shell32_version);
#endif
if (first_instance)
{
UpdateRegistry(); /* Checks version change and update keys/values */
}
GetRegistryKeys();
/* Parse command-line options */
ProcessCommandLine(&o, GetCommandLine());
EnsureDirExists(o.config_dir);
if (!first_instance)
{
int res = NotifyRunningInstance();
exit(res);
}
else if (o.action == WM_OVPN_START)
{
PrintDebug(L"Instance 1: Called with --command connect xxx. Treating it as --connect xxx");
}
else if (o.action == WM_OVPN_IMPORT)
{
/* pass -- import is handled after Window initialization */
}
else if (o.action)
{
MsgToEventLog(EVENTLOG_ERROR_TYPE, L"Called with --command when no previous instance available");
exit(OVPN_EXITCODE_ERROR);
}
if (!CheckVersion())
{
exit(1);
}
if (!EnsureDirExists(o.log_dir))
{
ShowLocalizedMsg(IDS_ERR_CREATE_PATH, _T("log_dir"), o.log_dir);
exit(1);
}
BOOL use_iservice = (o.iservice_admin && IsWindows7OrGreater()) || !IsUserAdmin();
if (use_iservice && strtod(o.ovpn_version, NULL) > 2.3 && !o.silent_connection)
{
CheckIServiceStatus(TRUE);
}
CheckServiceStatus(); /* Check if automatic service is running or not */
BuildFileList();
if (!VerifyAutoConnections())
{
exit(1);
}
GetProxyRegistrySettings();
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof(WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadLocalizedIcon(ID_ICO_APP);
wincl.hIconSm = LoadLocalizedIcon(ID_ICO_APP);
wincl.hCursor = LoadCursor(NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use Windows's default color as the background of the window */
wincl.hbrBackground = (HBRUSH) COLOR_3DSHADOW; /*COLOR_BACKGROUND; */
/* Register the window class, and if it fails quit the program */
if (!RegisterClassEx(&wincl))
{
return 1;
}
/* The class is registered, let's create the program*/
CreateWindowEx(
0, /* Extended possibilites for variation */
szClassName, /* Classname */
szTitleText, /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
(int)CW_USEDEFAULT, /* Windows decides the position */
(int)CW_USEDEFAULT, /* where the window ends up on the screen */
230, /* The programs width */
200, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Run the message loop. It will run until GetMessage() returns 0 */
while (GetMessage(&messages, NULL, 0, 0))
{
TranslateMessage(&messages);
DispatchMessage(&messages);
}
CloseSemaphore(o.session_semaphore);
o.session_semaphore = NULL; /* though we're going to die.. */
if (o.event_log)
{
DeregisterEventSource(o.event_log);
}
/* The program return-value is 0 - The value that PostQuitMessage() gave */
return messages.wParam;
}
static void
StopAllOpenVPN(bool exiting)
{
int i;
if (exiting)
{
RemoveTrayIcon();
}
/* Stop all connections started by us -- we leave persistent ones
* at their current state. Use the disconnect menu to put them into
* hold state before exit, if desired.
*/
for (connection_t *c = o.chead; c; c = c->next)
{
if (c->state != disconnected && c->state != detached)
{
if (c->flags & FLAG_DAEMON_PERSISTENT)
{
DetachOpenVPN(c);
}
else
{
StopOpenVPN(c);
}
}
}
/* Wait for all connections to terminate (Max 20 rounds of 250 msec = 5 sec) */
for (i = 0; i < 20; i++)
{
if (CountConnState(disconnected) + CountConnState(detached) == o.num_configs
|| !OVPNMsgWait(250, NULL)) /* Quit received */
{
break;
}
}
}
static int
AutoStartConnections()
{
for (connection_t *c = o.chead; c; c = c->next)
{
if (c->auto_connect && !(c->flags & FLAG_DAEMON_PERSISTENT))
{
StartOpenVPN(c);
}
}
return TRUE;
}
static void
ResumeConnections()
{
for (connection_t *c = o.chead; c; c = c->next)
{
/* Restart suspend connections */
if (c->state == suspended)
{
StartOpenVPN(c);
}
/* If some connection never reached SUSPENDED state */
if (c->state == suspending)
{
StopOpenVPN(c);
}
}
}
static int
HandleCopyDataMessage(const COPYDATASTRUCT *copy_data)
{
WCHAR *str = NULL;
connection_t *c = NULL;
PrintDebug(L"WM_COPYDATA message received. (dwData: %lu, cbData: %lu, lpData: %ls)",
copy_data->dwData, copy_data->cbData, copy_data->lpData);
if (copy_data->cbData >= sizeof(WCHAR) && copy_data->lpData)
{
str = (WCHAR *) copy_data->lpData;
str[copy_data->cbData/sizeof(WCHAR)-1] = L'\0'; /* in case not nul-terminated */
c = GetConnByName(str);
}
if (copy_data->dwData == WM_OVPN_START && c)
{
if (!o.silent_connection)
{
ForceForegroundWindow(o.hWnd);
}
StartOpenVPN(c);
}
else if (copy_data->dwData == WM_OVPN_STOP && c)
{
StopOpenVPN(c);
}
else if (copy_data->dwData == WM_OVPN_RESTART && c)
{
if (!o.silent_connection)
{
ForceForegroundWindow(o.hWnd);
}
RestartOpenVPN(c);
}
else if (copy_data->dwData == WM_OVPN_SHOWSTATUS && c && c->hwndStatus)
{
ForceForegroundWindow(o.hWnd);
ShowWindow(c->hwndStatus, SW_SHOW);
}
else if (copy_data->dwData == WM_OVPN_STOPALL)
{
StopAllOpenVPN(false);
}
else if (copy_data->dwData == WM_OVPN_SILENT && str)
{
if (_wtoi(str) == 0)
{
o.silent_connection = 0;
}
else
{
o.silent_connection = 1;
}
}
else if (copy_data->dwData == WM_OVPN_EXIT)
{
CloseApplication(o.hWnd, true);
}
else if (copy_data->dwData == WM_OVPN_IMPORT && str)
{
ImportConfigFile(str, true); /* prompt user */
}
else if (copy_data->dwData == WM_OVPN_NOTIFY)
{
ShowTrayBalloon(L"", copy_data->lpData);
}
else if (copy_data->dwData == WM_OVPN_RESCAN)
{
OnNotifyTray(WM_OVPN_RESCAN);
}
else
{
MsgToEventLog(EVENTLOG_ERROR_TYPE,
L"Unknown WM_COPYDATA message ignored. (dwData: %lu, cbData: %lu, lpData: %ls)",
copy_data->dwData, copy_data->cbData, copy_data->lpData);
return FALSE;
}
return TRUE; /* indicate we handled the message */
}
/* If automatic service is running, check whether we are
* attached to the management i/f of persistent daemons
* and re-attach if necessary. The timer is reset to
* call this routine again after a delay. Periodic check
* is required as we get detached if the daemon gets restarted
* by the service or we do a disconnect.
*/
static void CALLBACK
ManagePersistent(HWND hwnd, UINT UNUSED msg, UINT_PTR id, DWORD UNUSED now)
{
CheckServiceStatus();
if (o.service_state == service_connected)
{
for (connection_t *c = o.chead; c; c = c->next)
{
if (c->flags & FLAG_DAEMON_PERSISTENT
&& c->auto_connect
&& (c->state == disconnected || c->state == detached))
{
/* disable auto-connect to avoid repeated re-connect
* after unrecoverable errors. Re-enabled on successful
* connect.
*/
c->auto_connect = false;
c->state = detached; /* this is required to retain management-hold on re-attach */
StartOpenVPN(c); /* attach to the management i/f */
}
}
}
/* schedule to call again after 10 sec */
SetTimer(hwnd, id, 10000, ManagePersistent);
}
/* Detach from the mgmt i/f of all atatched persistent
* connections. Called on session lock so that another
* user can attach to these.
*/
static void
HandleSessionLock(void)
{
for (connection_t *c = o.chead; c; c = c->next)
{
if (c->flags & FLAG_DAEMON_PERSISTENT
&& (c->state != disconnected && c->state != detached))
{
c->auto_connect = false;
DetachOpenVPN(c);
c->flags |= FLAG_WAIT_UNLOCK;
}
}
}
/* Undo any actions done at session lock/disconnect.
*/
void
HandleSessionUnlock(void)
{
for (connection_t *c = o.chead; c; c = c->next)
{
if (c->flags & FLAG_WAIT_UNLOCK)
{
c->auto_connect = true; /* so that ManagePersistent will trigger attach */
c->flags &= ~FLAG_WAIT_UNLOCK;
}
}
}
/* This function is called by the Windows function DispatchMessage() */
LRESULT CALLBACK
WindowProcedure(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static UINT s_uTaskbarRestart;
MENUINFO minfo = {.cbSize = sizeof(MENUINFO)};
connection_t *c = NULL;
switch (message)
{
case WM_CREATE:
/* Save Window Handle */
o.hWnd = hwnd;
dpi_initialize(&o);
s_uTaskbarRestart = RegisterWindowMessage(TEXT("TaskbarCreated"));
WTSRegisterSessionNotification(hwnd, NOTIFY_FOR_THIS_SESSION);
/* Load application icon */
HICON hIcon = LoadLocalizedIcon(ID_ICO_APP);
if (hIcon)
{
SendMessage(hwnd, WM_SETICON, (WPARAM) (ICON_SMALL), (LPARAM) (hIcon));
SendMessage(hwnd, WM_SETICON, (WPARAM) (ICON_BIG), (LPARAM) (hIcon));
}
/* Enable next line to accept WM_COPYDATA messages from lower level processes */
#if 0
ChangeWindowMessageFilterEx(hwnd, WM_COPYDATA, MSGFLT_ALLOW, NULL);
#endif
echo_msg_init();
CreatePopupMenus(); /* Create popup menus */
ShowTrayIcon();
/* if '--import' was specified, do it now */
if (o.action == WM_OVPN_IMPORT && o.action_arg)
{
ImportConfigFile(o.action_arg, true); /* prompt user */
}
if (o.enable_auto_restart)
{
LoadAutoRestartList();
}
if (!AutoStartConnections())
{
SendMessage(hwnd, WM_CLOSE, 0, 0);
break;
}
/* A timer to periodically tend to persistent connections */
SetTimer(hwnd, 1, 100, ManagePersistent);
break;
case WM_NOTIFYICONTRAY:
OnNotifyTray(lParam); /* Manages message from tray */
break;
case WM_COPYDATA: /* custom messages with data from other processes */
HandleCopyDataMessage((COPYDATASTRUCT *) lParam);
return TRUE; /* lets the sender free copy_data */
case WM_MENUCOMMAND:
/* Get the menu item id and save it in wParam for use below */
wParam = GetMenuItemID((HMENU) lParam, wParam);
/* we first check global menu items which do not require a connnection index */
if (LOWORD(wParam) == IDM_IMPORT_FILE)
{
ImportConfigFileFromDisk();
}
else if (LOWORD(wParam) == IDM_IMPORT_AS)
{
ImportConfigFromAS();
}
else if (LOWORD(wParam) == IDM_IMPORT_URL)
{
ImportConfigFromURL();
}
else if (LOWORD(wParam) == IDM_SETTINGS)
{
ShowSettingsDialog();
}
else if (LOWORD(wParam) == IDM_CLOSE)
{
CloseApplication(hwnd, true);
}
/* rest of the handlers require a connection id */
else
{
minfo.fMask = MIM_MENUDATA;
GetMenuInfo((HMENU) lParam, &minfo);
c = (connection_t *) minfo.dwMenuData;
if (!c)
{
break; /* ignore invalid connection */
}
}
/* reach here only if the command did not match any global items and a valid connection id is available */
if (LOWORD(wParam) == IDM_CONNECTMENU)
{
StartOpenVPN(c);
}
else if (LOWORD(wParam) == IDM_DISCONNECTMENU)
{
StopOpenVPN(c);
}
else if (LOWORD(wParam) == IDM_RECONNECTMENU)
{
RestartOpenVPN(c);
}
else if (LOWORD(wParam) == IDM_STATUSMENU)
{
ShowWindow(c->hwndStatus, SW_SHOW);
}
else if (LOWORD(wParam) == IDM_VIEWLOGMENU)
{
ViewLog(c);
}
else if (LOWORD(wParam) == IDM_EDITMENU)
{
EditConfig(c);
}
else if (LOWORD(wParam) == IDM_CLEARPASSMENU)
{
ResetSavePasswords(c);
}
break;
case WM_CLOSE:
CloseApplication(hwnd, false); /* do not wait for user confirmation */
break;
case WM_DESTROY:
WTSUnRegisterSessionNotification(hwnd);
StopAllOpenVPN(true);
OnDestroyTray(); /* Remove Tray Icon and destroy menus */
PostQuitMessage(0); /* Send a WM_QUIT to the message queue */
break;
case WM_QUERYENDSESSION:
return(TRUE);
case WM_ENDSESSION:
SaveAutoRestartList();
StopAllOpenVPN(true);
OnDestroyTray();
break;
case WM_WTSSESSION_CHANGE:
switch (wParam)
{
case WTS_SESSION_LOCK:
PrintDebug(L"Session lock triggered");
o.session_locked = TRUE;
/* Detach persistent connections so that other users can connect to it */
HandleSessionLock();
KillTimer(hwnd, 1); /* This ensure ManagePersistent is not called when session is locked */
break;
case WTS_SESSION_UNLOCK:
PrintDebug(L"Session unlock triggered");
o.session_locked = FALSE;
HandleSessionUnlock();
SetTimer(hwnd, 1, 100, ManagePersistent);
if (CountConnState(suspended) != 0)
{
ResumeConnections();
}
break;
default:
PrintDebug(L"Session change with wParam = %lu", wParam);
break;
}
break;
default: /* for messages that we don't deal with */
if (message == s_uTaskbarRestart)
{
/* Explorer has restarted, re-register the tray icon. */
ShowTrayIcon();
CheckAndSetTrayIcon();
break;
}
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
static INT_PTR CALLBACK
AboutDialogFunc(UNUSED HWND hDlg, UINT msg, UNUSED WPARAM wParam, LPARAM lParam)
{
LPPSHNOTIFY psn;
wchar_t tmp1[300], tmp2[300];
switch (msg)
{
case WM_INITDIALOG:
if (GetDlgItemText(hDlg, ID_TXT_VERSION, tmp1, _countof(tmp1)))
{
_sntprintf_0(tmp2, tmp1, TEXT(PACKAGE_VERSION_RESOURCE_STR));
SetDlgItemText(hDlg, ID_TXT_VERSION, tmp2);
}
/* Modify the ABOUT3 line that reads as "OpenVPN ... " by
* including the version, like "OpenVPN v2.5.8 ... ".
* The logic used depends on this text starting with
* "OpenVPN", which is the case in all languages.
*/
const wchar_t *prefix = L"OpenVPN ";
if (GetDlgItemText(hDlg, ID_LTEXT_ABOUT3, tmp1, _countof(tmp1))
&& wcsbegins(tmp1, prefix))
{
_sntprintf_0(tmp2, L"%lsv%hs %ls", prefix, o.ovpn_version, tmp1 + wcslen(prefix));
SetDlgItemText(hDlg, ID_LTEXT_ABOUT3, tmp2);
}
break;
case WM_NOTIFY:
psn = (LPPSHNOTIFY) lParam;
if (psn->hdr.code == (UINT) PSN_APPLY)
{
return TRUE;
}
}
return FALSE;
}
static int CALLBACK
SettingsPsCallback(HWND hwnd, UINT msg, UNUSED LPARAM lParam)
{
switch (msg)
{
case PSCB_INITIALIZED:
settings_window = hwnd;
break;
}
return 0;
}
static void
ShowSettingsDialog()
{
PROPSHEETPAGE psp[4];
int page_number = 0;
if (settings_window && IsWindow(settings_window))
{
SetForegroundWindow(settings_window);
ShowWindow(settings_window, SW_SHOW);
return;
}
/* General tab */
psp[page_number].dwSize = sizeof(PROPSHEETPAGE);
psp[page_number].dwFlags = PSP_DLGINDIRECT;
psp[page_number].hInstance = o.hInstance;
psp[page_number].pResource = LocalizedDialogResource(ID_DLG_GENERAL);
psp[page_number].pfnDlgProc = GeneralSettingsDlgProc;
psp[page_number].lParam = 0;
psp[page_number].pfnCallback = NULL;
++page_number;
/* Proxy tab */
psp[page_number].dwSize = sizeof(PROPSHEETPAGE);
psp[page_number].dwFlags = PSP_DLGINDIRECT;
psp[page_number].hInstance = o.hInstance;
psp[page_number].pResource = LocalizedDialogResource(ID_DLG_PROXY);
psp[page_number].pfnDlgProc = ProxySettingsDialogFunc;
psp[page_number].lParam = 0;
psp[page_number].pfnCallback = NULL;
++page_number;
/* Advanced tab */
psp[page_number].dwSize = sizeof(PROPSHEETPAGE);
psp[page_number].dwFlags = PSP_DLGINDIRECT;
psp[page_number].hInstance = o.hInstance;
psp[page_number].pResource = LocalizedDialogResource(ID_DLG_ADVANCED);
psp[page_number].pfnDlgProc = AdvancedSettingsDlgProc;
psp[page_number].lParam = 0;
psp[page_number].pfnCallback = NULL;
++page_number;
/* About tab */
psp[page_number].dwSize = sizeof(PROPSHEETPAGE);
psp[page_number].dwFlags = PSP_DLGINDIRECT;
psp[page_number].hInstance = o.hInstance;
psp[page_number].pResource = LocalizedDialogResource(ID_DLG_ABOUT);
psp[page_number].pfnDlgProc = AboutDialogFunc;
psp[page_number].lParam = 0;
psp[page_number].pfnCallback = NULL;
++page_number;
PROPSHEETHEADER psh;
psh.dwSize = sizeof(PROPSHEETHEADER);
psh.dwFlags = PSH_USEHICON | PSH_PROPSHEETPAGE | PSH_NOAPPLYNOW | PSH_NOCONTEXTHELP | PSH_USECALLBACK;
psh.hwndParent = o.hWnd;
psh.hInstance = o.hInstance;
psh.hIcon = LoadLocalizedIcon(ID_ICO_APP);
psh.pszCaption = LoadLocalizedString(IDS_SETTINGS_CAPTION);
psh.nPages = page_number;
psh.nStartPage = 0;
psh.ppsp = (LPCPROPSHEETPAGE) &psp;
psh.pfnCallback = SettingsPsCallback;
PropertySheet(&psh);
}
void
CloseApplication(HWND hwnd, BOOL ask_user)
{
/* Do not let user access main menu through tray icon */
RemoveTrayIcon();
/* Show a message if any non-persistent connections are active */
for (connection_t *c = o.chead; c && ask_user; c = c->next)
{
if (c->state == disconnected
|| c->flags & FLAG_DAEMON_PERSISTENT)
{
continue;
}
/* Ask for confirmation if still connected */
if (ShowLocalizedMsgEx(MB_YESNO|MB_TOPMOST, o.hWnd, _T("Exit OpenVPN"), IDS_NFO_ACTIVE_CONN_EXIT) == IDNO)
{
/* recreate the tray icon */
ShowTrayIcon();
CheckAndSetTrayIcon();
return;
}
break; /* show the above message box only once */
}
SaveAutoRestartList(); /* active connection names saved in registry */
DestroyWindow(hwnd);
}
void
ImportConfigFileFromDisk()
{
TCHAR filter[2*_countof(o.ext_string)+5];
_sntprintf_0(filter, _T("*.%ls%lc*.%ls%lc"), o.ext_string, _T('\0'), o.ext_string, _T('\0'));
OPENFILENAME fn;
TCHAR source[MAX_PATH] = _T("");
fn.lStructSize = sizeof(OPENFILENAME);
fn.hwndOwner = NULL;
fn.lpstrFilter = filter;
fn.lpstrCustomFilter = NULL;
fn.nFilterIndex = 1;
fn.lpstrFile = source;
fn.nMaxFile = MAX_PATH;
fn.lpstrFileTitle = NULL;
fn.lpstrInitialDir = NULL;
fn.lpstrTitle = NULL;
fn.Flags = OFN_DONTADDTORECENT | OFN_FILEMUSTEXIST;
fn.lpstrDefExt = NULL;
if (GetOpenFileName(&fn))
{
ImportConfigFile(source, false); /* do not prompt user */
}
}
#ifdef DEBUG
void
PrintDebugMsg(TCHAR *msg)
{
time_t log_time;
struct tm *time_struct;
TCHAR date[30];
log_time = time(NULL);
time_struct = localtime(&log_time);
_sntprintf(date, _countof(date), _T("%d-%.2d-%.2d %.2d:%.2d:%.2d"),
time_struct->tm_year + 1900,
time_struct->tm_mon + 1,
time_struct->tm_mday,
time_struct->tm_hour,
time_struct->tm_min,
time_struct->tm_sec);
_ftprintf(o.debug_fp, _T("%ls %ls\n"), date, msg);
fflush(o.debug_fp);
}
#endif /* ifdef DEBUG */
#define PACKVERSION(major, minor) MAKELONG(minor, major)
DWORD
GetDllVersion(LPCTSTR lpszDllName)
{
HINSTANCE hinstDll;
DWORD dwVersion = 0;
/* For security purposes, LoadLibrary should be provided with a
* fully-qualified path to the DLL. The lpszDllName variable should be
* tested to ensure that it is a fully qualified path before it is used. */
hinstDll = LoadLibrary(lpszDllName);
if (hinstDll)
{
DLLGETVERSIONPROC pDllGetVersion;
pDllGetVersion = (DLLGETVERSIONPROC)GetProcAddress(hinstDll,
"DllGetVersion");