5c58ad2d |
1 | /* |
2 | * Pageant: the PuTTY Authentication Agent. |
3 | */ |
4 | |
5 | #include <windows.h> |
123bc6ea |
6 | #ifndef NO_SECURITY |
d70f60ae |
7 | #include <aclapi.h> |
123bc6ea |
8 | #endif |
9b581c37 |
9 | #include <stdio.h> |
5c58ad2d |
10 | #include "ssh.h" |
11 | #include "tree234.h" |
12 | |
13 | #define IDI_MAINICON 200 |
14 | #define IDI_TRAYICON 201 |
15 | |
16 | #define WM_XUSER (WM_USER + 0x2000) |
17 | #define WM_SYSTRAY (WM_XUSER + 6) |
18 | #define WM_SYSTRAY2 (WM_XUSER + 7) |
d70f60ae |
19 | |
20 | #define AGENT_COPYDATA_ID 0x804e50ba /* random goop */ |
21 | |
22 | /* |
23 | * FIXME: maybe some day we can sort this out ... |
24 | */ |
25 | #define AGENT_MAX_MSGLEN 8192 |
5c58ad2d |
26 | |
27 | #define IDM_CLOSE 0x0010 |
28 | #define IDM_VIEWKEYS 0x0020 |
5af3a3b6 |
29 | #define IDM_ABOUT 0x0030 |
5c58ad2d |
30 | |
31 | #define APPNAME "Pageant" |
32 | |
5c58ad2d |
33 | #define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1 |
34 | #define SSH_AGENT_RSA_IDENTITIES_ANSWER 2 |
35 | #define SSH_AGENTC_RSA_CHALLENGE 3 |
36 | #define SSH_AGENT_RSA_RESPONSE 4 |
37 | #define SSH_AGENT_FAILURE 5 |
38 | #define SSH_AGENT_SUCCESS 6 |
39 | #define SSH_AGENTC_ADD_RSA_IDENTITY 7 |
40 | #define SSH_AGENTC_REMOVE_RSA_IDENTITY 8 |
41 | |
5af3a3b6 |
42 | extern char ver[]; |
43 | |
75cab814 |
44 | static HINSTANCE instance; |
45 | static HWND hwnd; |
46 | static HWND keylist; |
47 | static HWND aboutbox; |
48 | static HMENU systray_menu; |
5c58ad2d |
49 | |
75cab814 |
50 | static tree234 *rsakeys; |
5c58ad2d |
51 | |
75cab814 |
52 | static int has_security; |
123bc6ea |
53 | #ifndef NO_SECURITY |
016ef8ab |
54 | typedef DWORD (WINAPI *gsi_fn_t) |
55 | (HANDLE, SE_OBJECT_TYPE, SECURITY_INFORMATION, |
56 | PSID *, PSID *, PACL *, PACL *, |
57 | PSECURITY_DESCRIPTOR *); |
75cab814 |
58 | static gsi_fn_t getsecurityinfo; |
123bc6ea |
59 | #endif |
016ef8ab |
60 | |
5c58ad2d |
61 | /* |
62 | * We need this to link with the RSA code, because rsaencrypt() |
63 | * pads its data with random bytes. Since we only use rsadecrypt(), |
64 | * which is deterministic, this should never be called. |
65 | * |
66 | * If it _is_ called, there is a _serious_ problem, because it |
67 | * won't generate true random numbers. So we must scream, panic, |
68 | * and exit immediately if that should happen. |
69 | */ |
70 | int random_byte(void) { |
71 | MessageBox(hwnd, "Internal Error", APPNAME, MB_OK | MB_ICONERROR); |
72 | exit(0); |
73 | } |
74 | |
75 | /* |
76 | * This function is needed to link with the DES code. We need not |
77 | * have it do anything at all. |
78 | */ |
79 | void logevent(char *msg) { |
80 | } |
81 | |
82 | #define GET_32BIT(cp) \ |
83 | (((unsigned long)(unsigned char)(cp)[0] << 24) | \ |
84 | ((unsigned long)(unsigned char)(cp)[1] << 16) | \ |
85 | ((unsigned long)(unsigned char)(cp)[2] << 8) | \ |
86 | ((unsigned long)(unsigned char)(cp)[3])) |
87 | |
88 | #define PUT_32BIT(cp, value) { \ |
89 | (cp)[0] = (unsigned char)((value) >> 24); \ |
90 | (cp)[1] = (unsigned char)((value) >> 16); \ |
91 | (cp)[2] = (unsigned char)((value) >> 8); \ |
92 | (cp)[3] = (unsigned char)(value); } |
93 | |
94 | #define PASSPHRASE_MAXLEN 512 |
95 | |
d4de2d2a |
96 | struct PassphraseProcStruct { |
97 | char *passphrase; |
98 | char *comment; |
99 | }; |
100 | |
5c58ad2d |
101 | /* |
5af3a3b6 |
102 | * Dialog-box function for the Licence box. |
103 | */ |
104 | static int CALLBACK LicenceProc (HWND hwnd, UINT msg, |
105 | WPARAM wParam, LPARAM lParam) { |
106 | switch (msg) { |
107 | case WM_INITDIALOG: |
108 | return 1; |
109 | case WM_COMMAND: |
110 | switch (LOWORD(wParam)) { |
111 | case IDOK: |
112 | EndDialog(hwnd, 1); |
113 | return 0; |
114 | } |
115 | return 0; |
116 | case WM_CLOSE: |
117 | EndDialog(hwnd, 1); |
118 | return 0; |
119 | } |
120 | return 0; |
121 | } |
122 | |
123 | /* |
124 | * Dialog-box function for the About box. |
125 | */ |
126 | static int CALLBACK AboutProc (HWND hwnd, UINT msg, |
127 | WPARAM wParam, LPARAM lParam) { |
128 | switch (msg) { |
129 | case WM_INITDIALOG: |
130 | SetDlgItemText (hwnd, 100, ver); |
131 | return 1; |
132 | case WM_COMMAND: |
133 | switch (LOWORD(wParam)) { |
134 | case IDOK: |
135 | aboutbox = NULL; |
136 | DestroyWindow (hwnd); |
137 | return 0; |
138 | case 101: |
139 | EnableWindow(hwnd, 0); |
140 | DialogBox (instance, MAKEINTRESOURCE(214), NULL, LicenceProc); |
141 | EnableWindow(hwnd, 1); |
142 | SetActiveWindow(hwnd); |
143 | return 0; |
144 | } |
145 | return 0; |
146 | case WM_CLOSE: |
147 | aboutbox = NULL; |
148 | DestroyWindow (hwnd); |
149 | return 0; |
150 | } |
151 | return 0; |
152 | } |
153 | |
154 | /* |
5c58ad2d |
155 | * Dialog-box function for the passphrase box. |
156 | */ |
157 | static int CALLBACK PassphraseProc(HWND hwnd, UINT msg, |
158 | WPARAM wParam, LPARAM lParam) { |
159 | static char *passphrase; |
d4de2d2a |
160 | struct PassphraseProcStruct *p; |
5c58ad2d |
161 | |
162 | switch (msg) { |
163 | case WM_INITDIALOG: |
d4de2d2a |
164 | p = (struct PassphraseProcStruct *)lParam; |
165 | passphrase = p->passphrase; |
166 | if (p->comment) |
167 | SetDlgItemText(hwnd, 101, p->comment); |
5c58ad2d |
168 | *passphrase = 0; |
169 | return 0; |
170 | case WM_COMMAND: |
171 | switch (LOWORD(wParam)) { |
172 | case IDOK: |
173 | if (*passphrase) |
174 | EndDialog (hwnd, 1); |
175 | else |
176 | MessageBeep (0); |
177 | return 0; |
178 | case IDCANCEL: |
179 | EndDialog (hwnd, 0); |
180 | return 0; |
181 | case 102: /* edit box */ |
182 | if (HIWORD(wParam) == EN_CHANGE) { |
183 | GetDlgItemText (hwnd, 102, passphrase, PASSPHRASE_MAXLEN-1); |
184 | passphrase[PASSPHRASE_MAXLEN-1] = '\0'; |
185 | } |
186 | return 0; |
187 | } |
188 | return 0; |
189 | case WM_CLOSE: |
190 | EndDialog (hwnd, 0); |
191 | return 0; |
192 | } |
193 | return 0; |
194 | } |
195 | |
196 | /* |
3c0b3d06 |
197 | * Update the visible key list. |
198 | */ |
75cab814 |
199 | static void keylist_update(void) { |
3c0b3d06 |
200 | struct RSAKey *key; |
201 | enum234 e; |
202 | |
203 | if (keylist) { |
204 | SendDlgItemMessage(keylist, 100, LB_RESETCONTENT, 0, 0); |
205 | for (key = first234(rsakeys, &e); key; key = next234(&e)) { |
1c2a93c4 |
206 | char listentry[512], *p; |
207 | /* |
208 | * Replace two spaces in the fingerprint with tabs, for |
209 | * nice alignment in the box. |
210 | */ |
211 | rsa_fingerprint(listentry, sizeof(listentry), key); |
212 | p = strchr(listentry, ' '); if (p) *p = '\t'; |
213 | p = strchr(listentry, ' '); if (p) *p = '\t'; |
3c0b3d06 |
214 | SendDlgItemMessage (keylist, 100, LB_ADDSTRING, |
1c2a93c4 |
215 | 0, (LPARAM)listentry); |
3c0b3d06 |
216 | } |
217 | SendDlgItemMessage (keylist, 100, LB_SETCURSEL, (WPARAM) -1, 0); |
218 | } |
219 | } |
220 | |
221 | /* |
5c58ad2d |
222 | * This function loads a key from a file and adds it. |
223 | */ |
75cab814 |
224 | static void add_keyfile(char *filename) { |
5c58ad2d |
225 | char passphrase[PASSPHRASE_MAXLEN]; |
226 | struct RSAKey *key; |
227 | int needs_pass; |
228 | int ret; |
229 | int attempts; |
d4de2d2a |
230 | char *comment; |
231 | struct PassphraseProcStruct pps; |
5c58ad2d |
232 | |
d4de2d2a |
233 | needs_pass = rsakey_encrypted(filename, &comment); |
5c58ad2d |
234 | attempts = 0; |
235 | key = malloc(sizeof(*key)); |
d4de2d2a |
236 | pps.passphrase = passphrase; |
237 | pps.comment = comment; |
5c58ad2d |
238 | do { |
239 | if (needs_pass) { |
240 | int dlgret; |
241 | dlgret = DialogBoxParam(instance, MAKEINTRESOURCE(210), |
242 | NULL, PassphraseProc, |
d4de2d2a |
243 | (LPARAM)&pps); |
5c58ad2d |
244 | if (!dlgret) { |
d4de2d2a |
245 | if (comment) free(comment); |
5c58ad2d |
246 | free(key); |
247 | return; /* operation cancelled */ |
248 | } |
249 | } else |
250 | *passphrase = '\0'; |
251 | ret = loadrsakey(filename, key, passphrase); |
252 | attempts++; |
253 | } while (ret == -1); |
d4de2d2a |
254 | if (comment) free(comment); |
5c58ad2d |
255 | if (ret == 0) { |
5af3a3b6 |
256 | MessageBox(NULL, "Couldn't load private key.", APPNAME, |
5c58ad2d |
257 | MB_OK | MB_ICONERROR); |
258 | free(key); |
259 | return; |
260 | } |
261 | if (add234(rsakeys, key) != key) |
262 | free(key); /* already present, don't waste RAM */ |
263 | } |
264 | |
265 | /* |
266 | * This is the main agent function that answers messages. |
267 | */ |
75cab814 |
268 | static void answer_msg(void *msg) { |
d70f60ae |
269 | unsigned char *p = msg; |
270 | unsigned char *ret = msg; |
5c58ad2d |
271 | int type; |
272 | |
5c58ad2d |
273 | /* |
274 | * Get the message type. |
275 | */ |
276 | type = p[4]; |
277 | |
278 | p += 5; |
5c58ad2d |
279 | switch (type) { |
280 | case SSH_AGENTC_REQUEST_RSA_IDENTITIES: |
281 | /* |
282 | * Reply with SSH_AGENT_RSA_IDENTITIES_ANSWER. |
283 | */ |
284 | { |
285 | enum234 e; |
286 | struct RSAKey *key; |
287 | int len, nkeys; |
288 | |
289 | /* |
290 | * Count up the number and length of keys we hold. |
291 | */ |
292 | len = nkeys = 0; |
293 | for (key = first234(rsakeys, &e); key; key = next234(&e)) { |
294 | nkeys++; |
295 | len += 4; /* length field */ |
296 | len += ssh1_bignum_length(key->exponent); |
297 | len += ssh1_bignum_length(key->modulus); |
298 | len += 4 + strlen(key->comment); |
299 | } |
300 | |
301 | /* |
302 | * Packet header is the obvious five bytes, plus four |
303 | * bytes for the key count. |
304 | */ |
305 | len += 5 + 4; |
d70f60ae |
306 | if (len > AGENT_MAX_MSGLEN) |
307 | goto failure; /* aaargh! too much stuff! */ |
308 | PUT_32BIT(ret, len-4); |
309 | ret[4] = SSH_AGENT_RSA_IDENTITIES_ANSWER; |
310 | PUT_32BIT(ret+5, nkeys); |
311 | p = ret + 5 + 4; |
312 | for (key = first234(rsakeys, &e); key; key = next234(&e)) { |
313 | PUT_32BIT(p, ssh1_bignum_bitcount(key->modulus)); |
314 | p += 4; |
315 | p += ssh1_write_bignum(p, key->exponent); |
316 | p += ssh1_write_bignum(p, key->modulus); |
317 | PUT_32BIT(p, strlen(key->comment)); |
318 | memcpy(p+4, key->comment, strlen(key->comment)); |
319 | p += 4 + strlen(key->comment); |
5c58ad2d |
320 | } |
321 | } |
322 | break; |
323 | case SSH_AGENTC_RSA_CHALLENGE: |
324 | /* |
325 | * Reply with either SSH_AGENT_RSA_RESPONSE or |
326 | * SSH_AGENT_FAILURE, depending on whether we have that key |
327 | * or not. |
328 | */ |
329 | { |
330 | struct RSAKey reqkey, *key; |
331 | Bignum challenge, response; |
332 | unsigned char response_source[48], response_md5[16]; |
333 | struct MD5Context md5c; |
334 | int i, len; |
335 | |
336 | p += 4; |
337 | p += ssh1_read_bignum(p, &reqkey.exponent); |
338 | p += ssh1_read_bignum(p, &reqkey.modulus); |
339 | p += ssh1_read_bignum(p, &challenge); |
340 | memcpy(response_source+32, p, 16); p += 16; |
341 | if (GET_32BIT(p) != 1 || |
342 | (key = find234(rsakeys, &reqkey, NULL)) == NULL) { |
343 | freebn(reqkey.exponent); |
344 | freebn(reqkey.modulus); |
345 | freebn(challenge); |
346 | goto failure; |
347 | } |
348 | response = rsadecrypt(challenge, key); |
349 | for (i = 0; i < 32; i++) |
350 | response_source[i] = bignum_byte(response, 31-i); |
351 | |
352 | MD5Init(&md5c); |
353 | MD5Update(&md5c, response_source, 48); |
354 | MD5Final(response_md5, &md5c); |
355 | memset(response_source, 0, 48); /* burn the evidence */ |
356 | freebn(response); /* and that evidence */ |
357 | freebn(challenge); /* yes, and that evidence */ |
358 | freebn(reqkey.exponent); /* and free some memory ... */ |
359 | freebn(reqkey.modulus); /* ... while we're at it. */ |
360 | |
361 | /* |
362 | * Packet is the obvious five byte header, plus sixteen |
363 | * bytes of MD5. |
364 | */ |
365 | len = 5 + 16; |
d70f60ae |
366 | PUT_32BIT(ret, len-4); |
367 | ret[4] = SSH_AGENT_RSA_RESPONSE; |
368 | memcpy(ret+5, response_md5, 16); |
5c58ad2d |
369 | } |
370 | break; |
5c58ad2d |
371 | case SSH_AGENTC_ADD_RSA_IDENTITY: |
372 | /* |
373 | * Add to the list and return SSH_AGENT_SUCCESS, or |
374 | * SSH_AGENT_FAILURE if the key was malformed. |
375 | */ |
3c0b3d06 |
376 | { |
377 | struct RSAKey *key; |
378 | char *comment; |
379 | key = malloc(sizeof(struct RSAKey)); |
380 | memset(key, 0, sizeof(key)); |
381 | p += makekey(p, key, NULL, 1); |
382 | p += makeprivate(p, key); |
383 | p += ssh1_read_bignum(p, NULL); /* p^-1 mod q */ |
384 | p += ssh1_read_bignum(p, NULL); /* p */ |
385 | p += ssh1_read_bignum(p, NULL); /* q */ |
386 | comment = malloc(GET_32BIT(p)); |
387 | if (comment) { |
388 | memcpy(comment, p+4, GET_32BIT(p)); |
389 | key->comment = comment; |
390 | } |
391 | PUT_32BIT(ret, 1); |
392 | ret[4] = SSH_AGENT_FAILURE; |
393 | if (add234(rsakeys, key) == key) { |
394 | keylist_update(); |
395 | ret[4] = SSH_AGENT_SUCCESS; |
396 | } else { |
397 | freersakey(key); |
1c2a93c4 |
398 | free(key); |
3c0b3d06 |
399 | } |
400 | } |
5c58ad2d |
401 | break; |
402 | case SSH_AGENTC_REMOVE_RSA_IDENTITY: |
403 | /* |
404 | * Remove from the list and return SSH_AGENT_SUCCESS, or |
405 | * perhaps SSH_AGENT_FAILURE if it wasn't in the list to |
406 | * start with. |
407 | */ |
3c0b3d06 |
408 | { |
409 | struct RSAKey reqkey, *key; |
410 | |
411 | p += makekey(p, &reqkey, NULL, 0); |
412 | key = find234(rsakeys, &reqkey, NULL); |
413 | freebn(reqkey.exponent); |
414 | freebn(reqkey.modulus); |
415 | PUT_32BIT(ret, 1); |
416 | ret[4] = SSH_AGENT_FAILURE; |
417 | if (key) { |
418 | del234(rsakeys, key); |
419 | keylist_update(); |
d4de2d2a |
420 | freersakey(key); |
3c0b3d06 |
421 | ret[4] = SSH_AGENT_SUCCESS; |
422 | } |
423 | } |
5c58ad2d |
424 | break; |
5c58ad2d |
425 | default: |
426 | failure: |
427 | /* |
428 | * Unrecognised message. Return SSH_AGENT_FAILURE. |
429 | */ |
d70f60ae |
430 | PUT_32BIT(ret, 1); |
431 | ret[4] = SSH_AGENT_FAILURE; |
5c58ad2d |
432 | break; |
433 | } |
5c58ad2d |
434 | } |
435 | |
436 | /* |
437 | * Key comparison function for the 2-3-4 tree of RSA keys. |
438 | */ |
75cab814 |
439 | static int cmpkeys(void *av, void *bv) { |
5c58ad2d |
440 | struct RSAKey *a = (struct RSAKey *)av; |
441 | struct RSAKey *b = (struct RSAKey *)bv; |
442 | Bignum am, bm; |
443 | int alen, blen; |
444 | |
445 | am = a->modulus; |
446 | bm = b->modulus; |
447 | /* |
448 | * Compare by length of moduli. |
449 | */ |
450 | alen = ssh1_bignum_bitcount(am); |
451 | blen = ssh1_bignum_bitcount(bm); |
452 | if (alen > blen) return +1; else if (alen < blen) return -1; |
453 | /* |
454 | * Now compare by moduli themselves. |
455 | */ |
456 | alen = (alen + 7) / 8; /* byte count */ |
457 | while (alen-- > 0) { |
458 | int abyte, bbyte; |
459 | abyte = bignum_byte(am, alen); |
460 | bbyte = bignum_byte(bm, alen); |
461 | if (abyte > bbyte) return +1; else if (abyte < bbyte) return -1; |
462 | } |
463 | /* |
464 | * Give up. |
465 | */ |
466 | return 0; |
467 | } |
468 | |
469 | static void error(char *s) { |
470 | MessageBox(hwnd, s, APPNAME, MB_OK | MB_ICONERROR); |
471 | } |
472 | |
473 | /* |
474 | * Dialog-box function for the key list box. |
475 | */ |
476 | static int CALLBACK KeyListProc(HWND hwnd, UINT msg, |
477 | WPARAM wParam, LPARAM lParam) { |
478 | enum234 e; |
479 | struct RSAKey *key; |
480 | OPENFILENAME of; |
481 | char filename[FILENAME_MAX]; |
482 | |
483 | switch (msg) { |
484 | case WM_INITDIALOG: |
1c2a93c4 |
485 | keylist = hwnd; |
486 | { |
487 | static int tabs[2] = {25, 175}; |
488 | SendDlgItemMessage (hwnd, 100, LB_SETTABSTOPS, 2, |
489 | (LPARAM) tabs); |
490 | } |
491 | keylist_update(); |
5c58ad2d |
492 | return 0; |
493 | case WM_COMMAND: |
494 | switch (LOWORD(wParam)) { |
495 | case IDOK: |
496 | case IDCANCEL: |
497 | keylist = NULL; |
498 | DestroyWindow(hwnd); |
499 | return 0; |
500 | case 101: /* add key */ |
501 | if (HIWORD(wParam) == BN_CLICKED || |
502 | HIWORD(wParam) == BN_DOUBLECLICKED) { |
503 | memset(&of, 0, sizeof(of)); |
504 | #ifdef OPENFILENAME_SIZE_VERSION_400 |
505 | of.lStructSize = OPENFILENAME_SIZE_VERSION_400; |
506 | #else |
507 | of.lStructSize = sizeof(of); |
508 | #endif |
509 | of.hwndOwner = hwnd; |
510 | of.lpstrFilter = "All Files\0*\0\0\0"; |
511 | of.lpstrCustomFilter = NULL; |
512 | of.nFilterIndex = 1; |
513 | of.lpstrFile = filename; *filename = '\0'; |
514 | of.nMaxFile = sizeof(filename); |
515 | of.lpstrFileTitle = NULL; |
516 | of.lpstrInitialDir = NULL; |
5af3a3b6 |
517 | of.lpstrTitle = "Select Private Key File"; |
5c58ad2d |
518 | of.Flags = 0; |
519 | if (GetOpenFileName(&of)) { |
520 | add_keyfile(filename); |
3c0b3d06 |
521 | keylist_update(); |
5c58ad2d |
522 | } |
5c58ad2d |
523 | } |
524 | return 0; |
525 | case 102: /* remove key */ |
526 | if (HIWORD(wParam) == BN_CLICKED || |
527 | HIWORD(wParam) == BN_DOUBLECLICKED) { |
528 | int n = SendDlgItemMessage (hwnd, 100, LB_GETCURSEL, 0, 0); |
f70a606e |
529 | if (n == LB_ERR) { |
5c58ad2d |
530 | MessageBeep(0); |
531 | break; |
532 | } |
533 | for (key = first234(rsakeys, &e); key; key = next234(&e)) |
534 | if (n-- == 0) |
535 | break; |
536 | del234(rsakeys, key); |
537 | freersakey(key); free(key); |
1c2a93c4 |
538 | keylist_update(); |
5c58ad2d |
539 | } |
540 | return 0; |
541 | } |
542 | return 0; |
543 | case WM_CLOSE: |
544 | keylist = NULL; |
545 | DestroyWindow(hwnd); |
546 | return 0; |
547 | } |
548 | return 0; |
549 | } |
550 | |
551 | static LRESULT CALLBACK WndProc (HWND hwnd, UINT message, |
552 | WPARAM wParam, LPARAM lParam) { |
553 | int ret; |
554 | static int menuinprogress; |
555 | |
556 | switch (message) { |
557 | case WM_SYSTRAY: |
558 | if (lParam == WM_RBUTTONUP) { |
559 | POINT cursorpos; |
560 | GetCursorPos(&cursorpos); |
561 | PostMessage(hwnd, WM_SYSTRAY2, cursorpos.x, cursorpos.y); |
905beba5 |
562 | } else if (lParam == WM_LBUTTONDBLCLK) { |
563 | /* Equivalent to IDM_VIEWKEYS. */ |
564 | PostMessage(hwnd, WM_COMMAND, IDM_VIEWKEYS, 0); |
5c58ad2d |
565 | } |
566 | break; |
567 | case WM_SYSTRAY2: |
568 | if (!menuinprogress) { |
569 | menuinprogress = 1; |
570 | SetForegroundWindow(hwnd); |
571 | ret = TrackPopupMenu(systray_menu, |
572 | TPM_RIGHTALIGN | TPM_BOTTOMALIGN | |
573 | TPM_RIGHTBUTTON, |
574 | wParam, lParam, 0, hwnd, NULL); |
575 | menuinprogress = 0; |
576 | } |
577 | break; |
578 | case WM_COMMAND: |
579 | case WM_SYSCOMMAND: |
580 | switch (wParam & ~0xF) { /* low 4 bits reserved to Windows */ |
581 | case IDM_CLOSE: |
582 | SendMessage(hwnd, WM_CLOSE, 0, 0); |
583 | break; |
584 | case IDM_VIEWKEYS: |
585 | if (!keylist) { |
586 | keylist = CreateDialog (instance, MAKEINTRESOURCE(211), |
587 | NULL, KeyListProc); |
588 | ShowWindow (keylist, SW_SHOWNORMAL); |
905beba5 |
589 | /* |
590 | * Sometimes the window comes up minimised / hidden |
591 | * for no obvious reason. Prevent this. |
592 | */ |
593 | SetForegroundWindow(keylist); |
594 | SetWindowPos (keylist, HWND_TOP, 0, 0, 0, 0, |
595 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
5c58ad2d |
596 | } |
597 | break; |
5af3a3b6 |
598 | case IDM_ABOUT: |
599 | if (!aboutbox) { |
600 | aboutbox = CreateDialog (instance, MAKEINTRESOURCE(213), |
601 | NULL, AboutProc); |
602 | ShowWindow (aboutbox, SW_SHOWNORMAL); |
603 | /* |
604 | * Sometimes the window comes up minimised / hidden |
605 | * for no obvious reason. Prevent this. |
606 | */ |
607 | SetForegroundWindow(aboutbox); |
608 | SetWindowPos (aboutbox, HWND_TOP, 0, 0, 0, 0, |
609 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
610 | } |
611 | break; |
5c58ad2d |
612 | } |
613 | break; |
614 | case WM_DESTROY: |
615 | PostQuitMessage (0); |
616 | return 0; |
617 | case WM_COPYDATA: |
618 | { |
619 | COPYDATASTRUCT *cds; |
d70f60ae |
620 | char *mapname; |
621 | void *p; |
622 | HANDLE filemap, proc; |
623 | PSID mapowner, procowner; |
624 | PSECURITY_DESCRIPTOR psd1 = NULL, psd2 = NULL; |
625 | int ret = 0; |
5c58ad2d |
626 | |
627 | cds = (COPYDATASTRUCT *)lParam; |
d70f60ae |
628 | if (cds->dwData != AGENT_COPYDATA_ID) |
629 | return 0; /* not our message, mate */ |
630 | mapname = (char *)cds->lpData; |
631 | if (mapname[cds->cbData - 1] != '\0') |
632 | return 0; /* failure to be ASCIZ! */ |
633 | #ifdef DEBUG_IPC |
634 | debug(("mapname is :%s:\r\n", mapname)); |
635 | #endif |
636 | filemap = OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, mapname); |
637 | #ifdef DEBUG_IPC |
638 | debug(("filemap is %p\r\n", filemap)); |
639 | #endif |
640 | if (filemap != NULL && filemap != INVALID_HANDLE_VALUE) { |
641 | int rc; |
123bc6ea |
642 | #ifndef NO_SECURITY |
016ef8ab |
643 | if (has_security) { |
644 | if ((proc = OpenProcess(MAXIMUM_ALLOWED, FALSE, |
645 | GetCurrentProcessId())) == NULL) { |
d70f60ae |
646 | #ifdef DEBUG_IPC |
016ef8ab |
647 | debug(("couldn't get handle for process\r\n")); |
d70f60ae |
648 | #endif |
016ef8ab |
649 | return 0; |
650 | } |
651 | if (getsecurityinfo(proc, SE_KERNEL_OBJECT, |
652 | OWNER_SECURITY_INFORMATION, |
653 | &procowner, NULL, NULL, NULL, |
654 | &psd2) != ERROR_SUCCESS) { |
d70f60ae |
655 | #ifdef DEBUG_IPC |
016ef8ab |
656 | debug(("couldn't get owner info for process\r\n")); |
d70f60ae |
657 | #endif |
016ef8ab |
658 | CloseHandle(proc); |
659 | return 0; /* unable to get security info */ |
660 | } |
d70f60ae |
661 | CloseHandle(proc); |
016ef8ab |
662 | if ((rc = getsecurityinfo(filemap, SE_KERNEL_OBJECT, |
663 | OWNER_SECURITY_INFORMATION, |
664 | &mapowner, NULL, NULL, NULL, |
665 | &psd1) != ERROR_SUCCESS)) { |
d70f60ae |
666 | #ifdef DEBUG_IPC |
016ef8ab |
667 | debug(("couldn't get owner info for filemap: %d\r\n", rc)); |
d70f60ae |
668 | #endif |
016ef8ab |
669 | return 0; |
670 | } |
671 | #ifdef DEBUG_IPC |
672 | debug(("got security stuff\r\n")); |
673 | #endif |
674 | if (!EqualSid(mapowner, procowner)) |
675 | return 0; /* security ID mismatch! */ |
d70f60ae |
676 | #ifdef DEBUG_IPC |
016ef8ab |
677 | debug(("security stuff matched\r\n")); |
d70f60ae |
678 | #endif |
016ef8ab |
679 | LocalFree(psd1); |
680 | LocalFree(psd2); |
681 | } else { |
d70f60ae |
682 | #ifdef DEBUG_IPC |
016ef8ab |
683 | debug(("security APIs not present\r\n")); |
d70f60ae |
684 | #endif |
016ef8ab |
685 | } |
123bc6ea |
686 | #endif |
d70f60ae |
687 | p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0); |
688 | #ifdef DEBUG_IPC |
689 | debug(("p is %p\r\n", p)); |
690 | {int i; for(i=0;i<5;i++)debug(("p[%d]=%02x\r\n", i, ((unsigned char *)p)[i]));} |
691 | #endif |
692 | answer_msg(p); |
693 | ret = 1; |
694 | UnmapViewOfFile(p); |
695 | } |
696 | CloseHandle(filemap); |
697 | return ret; |
5c58ad2d |
698 | } |
5c58ad2d |
699 | } |
700 | |
701 | return DefWindowProc (hwnd, message, wParam, lParam); |
702 | } |
703 | |
704 | int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) { |
705 | WNDCLASS wndclass; |
5c58ad2d |
706 | MSG msg; |
016ef8ab |
707 | OSVERSIONINFO osi; |
708 | HMODULE advapi; |
709 | |
710 | /* |
711 | * Determine whether we're an NT system (should have security |
712 | * APIs) or a non-NT system (don't do security). |
713 | */ |
714 | memset(&osi, 0, sizeof(OSVERSIONINFO)); |
715 | osi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); |
716 | if (GetVersionEx(&osi) && osi.dwPlatformId==VER_PLATFORM_WIN32_NT) { |
717 | has_security = TRUE; |
718 | } else |
719 | has_security = FALSE; |
720 | |
721 | if (has_security) { |
123bc6ea |
722 | #ifndef NO_SECURITY |
016ef8ab |
723 | /* |
724 | * Attempt to ge the security API we need. |
725 | */ |
726 | advapi = LoadLibrary("ADVAPI32.DLL"); |
727 | getsecurityinfo = (gsi_fn_t)GetProcAddress(advapi, "GetSecurityInfo"); |
728 | if (!getsecurityinfo) { |
729 | MessageBox(NULL, |
730 | "Unable to access security APIs. Pageant will\n" |
731 | "not run, in case it causes a security breach.", |
732 | "Pageant Fatal Error", MB_ICONERROR | MB_OK); |
733 | return 1; |
734 | } |
123bc6ea |
735 | #else |
736 | MessageBox(NULL, |
737 | "This program has been compiled for Win9X and will\n" |
738 | "not run on NT, in case it causes a security breach.", |
739 | "Pageant Fatal Error", MB_ICONERROR | MB_OK); |
740 | return 1; |
741 | #endif |
016ef8ab |
742 | } else |
743 | advapi = NULL; |
5c58ad2d |
744 | |
2faac2e1 |
745 | /* |
746 | * First bomb out totally if we are already running. |
747 | */ |
748 | if (FindWindow("Pageant", "Pageant")) { |
749 | MessageBox(NULL, "Pageant is already running", "Pageant Error", |
750 | MB_ICONERROR | MB_OK); |
016ef8ab |
751 | if (advapi) FreeLibrary(advapi); |
2faac2e1 |
752 | return 0; |
753 | } |
754 | |
5c58ad2d |
755 | instance = inst; |
756 | |
757 | if (!prev) { |
758 | wndclass.style = 0; |
759 | wndclass.lpfnWndProc = WndProc; |
760 | wndclass.cbClsExtra = 0; |
761 | wndclass.cbWndExtra = 0; |
762 | wndclass.hInstance = inst; |
763 | wndclass.hIcon = LoadIcon (inst, |
764 | MAKEINTRESOURCE(IDI_MAINICON)); |
765 | wndclass.hCursor = LoadCursor (NULL, IDC_IBEAM); |
766 | wndclass.hbrBackground = GetStockObject (BLACK_BRUSH); |
767 | wndclass.lpszMenuName = NULL; |
768 | wndclass.lpszClassName = APPNAME; |
769 | |
770 | RegisterClass (&wndclass); |
771 | } |
772 | |
773 | hwnd = keylist = NULL; |
774 | |
775 | hwnd = CreateWindow (APPNAME, APPNAME, |
776 | WS_OVERLAPPEDWINDOW | WS_VSCROLL, |
777 | CW_USEDEFAULT, CW_USEDEFAULT, |
778 | 100, 100, NULL, NULL, inst, NULL); |
779 | |
780 | /* Set up a system tray icon */ |
781 | { |
782 | BOOL res; |
783 | NOTIFYICONDATA tnid; |
784 | HICON hicon; |
785 | |
786 | #ifdef NIM_SETVERSION |
787 | tnid.uVersion = 0; |
788 | res = Shell_NotifyIcon(NIM_SETVERSION, &tnid); |
789 | #endif |
790 | |
791 | tnid.cbSize = sizeof(NOTIFYICONDATA); |
792 | tnid.hWnd = hwnd; |
793 | tnid.uID = 1; /* unique within this systray use */ |
794 | tnid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP; |
795 | tnid.uCallbackMessage = WM_SYSTRAY; |
796 | tnid.hIcon = hicon = LoadIcon (instance, MAKEINTRESOURCE(201)); |
797 | strcpy(tnid.szTip, "Pageant (PuTTY authentication agent)"); |
798 | |
799 | res = Shell_NotifyIcon(NIM_ADD, &tnid); |
800 | |
801 | if (hicon) |
802 | DestroyIcon(hicon); |
803 | |
804 | systray_menu = CreatePopupMenu(); |
5af3a3b6 |
805 | /* accelerators used: vxa */ |
70acd63f |
806 | AppendMenu (systray_menu, MF_ENABLED, IDM_VIEWKEYS, "&View Keys"); |
5af3a3b6 |
807 | AppendMenu (systray_menu, MF_ENABLED, IDM_ABOUT, "&About"); |
70acd63f |
808 | AppendMenu (systray_menu, MF_ENABLED, IDM_CLOSE, "E&xit"); |
5c58ad2d |
809 | } |
810 | |
811 | ShowWindow (hwnd, SW_HIDE); |
812 | |
813 | /* |
dacbd0e8 |
814 | * Initialise storage for RSA keys. |
815 | */ |
816 | rsakeys = newtree234(cmpkeys); |
817 | |
818 | /* |
819 | * Process the command line and add RSA keys as listed on it. |
5c58ad2d |
820 | */ |
821 | { |
8c42f28c |
822 | char *p; |
823 | int inquotes = 0; |
824 | p = cmdline; |
dacbd0e8 |
825 | while (*p) { |
826 | while (*p && isspace(*p)) p++; |
827 | if (*p && !isspace(*p)) { |
8c42f28c |
828 | char *q = p, *pp = p; |
829 | while (*p && (inquotes || !isspace(*p))) |
830 | { |
831 | if (*p == '"') { |
832 | inquotes = !inquotes; |
833 | p++; |
834 | continue; |
835 | } |
836 | *pp++ = *p++; |
837 | } |
838 | if (*pp) { |
839 | if (*p) p++; |
840 | *pp++ = '\0'; |
841 | } |
dacbd0e8 |
842 | add_keyfile(q); |
843 | } |
844 | } |
5c58ad2d |
845 | } |
846 | |
847 | /* |
dacbd0e8 |
848 | * Main message loop. |
5c58ad2d |
849 | */ |
5c58ad2d |
850 | while (GetMessage(&msg, NULL, 0, 0) == 1) { |
851 | TranslateMessage(&msg); |
852 | DispatchMessage(&msg); |
853 | } |
854 | |
855 | /* Clean up the system tray icon */ |
856 | { |
857 | NOTIFYICONDATA tnid; |
858 | |
859 | tnid.cbSize = sizeof(NOTIFYICONDATA); |
860 | tnid.hWnd = hwnd; |
861 | tnid.uID = 1; |
862 | |
863 | Shell_NotifyIcon(NIM_DELETE, &tnid); |
864 | |
865 | DestroyMenu(systray_menu); |
866 | } |
867 | |
016ef8ab |
868 | if (advapi) FreeLibrary(advapi); |
5c58ad2d |
869 | exit(msg.wParam); |
870 | } |