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> |
49bad831 |
10 | #include <stdlib.h> |
11 | #include <ctype.h> |
5c58ad2d |
12 | #include "ssh.h" |
13 | #include "tree234.h" |
14 | |
15 | #define IDI_MAINICON 200 |
16 | #define IDI_TRAYICON 201 |
17 | |
18 | #define WM_XUSER (WM_USER + 0x2000) |
19 | #define WM_SYSTRAY (WM_XUSER + 6) |
20 | #define WM_SYSTRAY2 (WM_XUSER + 7) |
d70f60ae |
21 | |
22 | #define AGENT_COPYDATA_ID 0x804e50ba /* random goop */ |
23 | |
24 | /* |
25 | * FIXME: maybe some day we can sort this out ... |
26 | */ |
27 | #define AGENT_MAX_MSGLEN 8192 |
5c58ad2d |
28 | |
29 | #define IDM_CLOSE 0x0010 |
30 | #define IDM_VIEWKEYS 0x0020 |
ab162329 |
31 | #define IDM_ADDKEY 0x0030 |
32 | #define IDM_ABOUT 0x0040 |
5c58ad2d |
33 | |
34 | #define APPNAME "Pageant" |
35 | |
5c58ad2d |
36 | #define SSH_AGENTC_REQUEST_RSA_IDENTITIES 1 |
37 | #define SSH_AGENT_RSA_IDENTITIES_ANSWER 2 |
38 | #define SSH_AGENTC_RSA_CHALLENGE 3 |
39 | #define SSH_AGENT_RSA_RESPONSE 4 |
40 | #define SSH_AGENT_FAILURE 5 |
41 | #define SSH_AGENT_SUCCESS 6 |
42 | #define SSH_AGENTC_ADD_RSA_IDENTITY 7 |
43 | #define SSH_AGENTC_REMOVE_RSA_IDENTITY 8 |
44 | |
5af3a3b6 |
45 | extern char ver[]; |
46 | |
75cab814 |
47 | static HINSTANCE instance; |
48 | static HWND hwnd; |
49 | static HWND keylist; |
50 | static HWND aboutbox; |
51 | static HMENU systray_menu; |
5c58ad2d |
52 | |
75cab814 |
53 | static tree234 *rsakeys; |
5c58ad2d |
54 | |
75cab814 |
55 | static int has_security; |
123bc6ea |
56 | #ifndef NO_SECURITY |
016ef8ab |
57 | typedef DWORD (WINAPI *gsi_fn_t) |
58 | (HANDLE, SE_OBJECT_TYPE, SECURITY_INFORMATION, |
59 | PSID *, PSID *, PACL *, PACL *, |
60 | PSECURITY_DESCRIPTOR *); |
75cab814 |
61 | static gsi_fn_t getsecurityinfo; |
123bc6ea |
62 | #endif |
016ef8ab |
63 | |
5c58ad2d |
64 | /* |
65 | * We need this to link with the RSA code, because rsaencrypt() |
66 | * pads its data with random bytes. Since we only use rsadecrypt(), |
67 | * which is deterministic, this should never be called. |
68 | * |
69 | * If it _is_ called, there is a _serious_ problem, because it |
70 | * won't generate true random numbers. So we must scream, panic, |
71 | * and exit immediately if that should happen. |
72 | */ |
73 | int random_byte(void) { |
74 | MessageBox(hwnd, "Internal Error", APPNAME, MB_OK | MB_ICONERROR); |
75 | exit(0); |
76 | } |
77 | |
78 | /* |
79 | * This function is needed to link with the DES code. We need not |
80 | * have it do anything at all. |
81 | */ |
82 | void logevent(char *msg) { |
83 | } |
84 | |
85 | #define GET_32BIT(cp) \ |
86 | (((unsigned long)(unsigned char)(cp)[0] << 24) | \ |
87 | ((unsigned long)(unsigned char)(cp)[1] << 16) | \ |
88 | ((unsigned long)(unsigned char)(cp)[2] << 8) | \ |
89 | ((unsigned long)(unsigned char)(cp)[3])) |
90 | |
91 | #define PUT_32BIT(cp, value) { \ |
92 | (cp)[0] = (unsigned char)((value) >> 24); \ |
93 | (cp)[1] = (unsigned char)((value) >> 16); \ |
94 | (cp)[2] = (unsigned char)((value) >> 8); \ |
95 | (cp)[3] = (unsigned char)(value); } |
96 | |
97 | #define PASSPHRASE_MAXLEN 512 |
98 | |
d4de2d2a |
99 | struct PassphraseProcStruct { |
100 | char *passphrase; |
101 | char *comment; |
102 | }; |
103 | |
5c58ad2d |
104 | /* |
5af3a3b6 |
105 | * Dialog-box function for the Licence box. |
106 | */ |
107 | static int CALLBACK LicenceProc (HWND hwnd, UINT msg, |
108 | WPARAM wParam, LPARAM lParam) { |
109 | switch (msg) { |
110 | case WM_INITDIALOG: |
111 | return 1; |
112 | case WM_COMMAND: |
113 | switch (LOWORD(wParam)) { |
114 | case IDOK: |
115 | EndDialog(hwnd, 1); |
116 | return 0; |
117 | } |
118 | return 0; |
119 | case WM_CLOSE: |
120 | EndDialog(hwnd, 1); |
121 | return 0; |
122 | } |
123 | return 0; |
124 | } |
125 | |
126 | /* |
127 | * Dialog-box function for the About box. |
128 | */ |
129 | static int CALLBACK AboutProc (HWND hwnd, UINT msg, |
130 | WPARAM wParam, LPARAM lParam) { |
131 | switch (msg) { |
132 | case WM_INITDIALOG: |
133 | SetDlgItemText (hwnd, 100, ver); |
134 | return 1; |
135 | case WM_COMMAND: |
136 | switch (LOWORD(wParam)) { |
137 | case IDOK: |
138 | aboutbox = NULL; |
139 | DestroyWindow (hwnd); |
140 | return 0; |
141 | case 101: |
142 | EnableWindow(hwnd, 0); |
143 | DialogBox (instance, MAKEINTRESOURCE(214), NULL, LicenceProc); |
144 | EnableWindow(hwnd, 1); |
145 | SetActiveWindow(hwnd); |
146 | return 0; |
147 | } |
148 | return 0; |
149 | case WM_CLOSE: |
150 | aboutbox = NULL; |
151 | DestroyWindow (hwnd); |
152 | return 0; |
153 | } |
154 | return 0; |
155 | } |
156 | |
157 | /* |
5c58ad2d |
158 | * Dialog-box function for the passphrase box. |
159 | */ |
160 | static int CALLBACK PassphraseProc(HWND hwnd, UINT msg, |
161 | WPARAM wParam, LPARAM lParam) { |
162 | static char *passphrase; |
d4de2d2a |
163 | struct PassphraseProcStruct *p; |
5c58ad2d |
164 | |
165 | switch (msg) { |
166 | case WM_INITDIALOG: |
ab162329 |
167 | SetForegroundWindow(hwnd); |
168 | SetWindowPos (hwnd, HWND_TOP, 0, 0, 0, 0, |
169 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
d4de2d2a |
170 | p = (struct PassphraseProcStruct *)lParam; |
171 | passphrase = p->passphrase; |
172 | if (p->comment) |
173 | SetDlgItemText(hwnd, 101, p->comment); |
5c58ad2d |
174 | *passphrase = 0; |
175 | return 0; |
176 | case WM_COMMAND: |
177 | switch (LOWORD(wParam)) { |
178 | case IDOK: |
179 | if (*passphrase) |
180 | EndDialog (hwnd, 1); |
181 | else |
182 | MessageBeep (0); |
183 | return 0; |
184 | case IDCANCEL: |
185 | EndDialog (hwnd, 0); |
186 | return 0; |
187 | case 102: /* edit box */ |
188 | if (HIWORD(wParam) == EN_CHANGE) { |
189 | GetDlgItemText (hwnd, 102, passphrase, PASSPHRASE_MAXLEN-1); |
190 | passphrase[PASSPHRASE_MAXLEN-1] = '\0'; |
191 | } |
192 | return 0; |
193 | } |
194 | return 0; |
195 | case WM_CLOSE: |
196 | EndDialog (hwnd, 0); |
197 | return 0; |
198 | } |
199 | return 0; |
200 | } |
201 | |
202 | /* |
3c0b3d06 |
203 | * Update the visible key list. |
204 | */ |
75cab814 |
205 | static void keylist_update(void) { |
3c0b3d06 |
206 | struct RSAKey *key; |
207 | enum234 e; |
208 | |
209 | if (keylist) { |
210 | SendDlgItemMessage(keylist, 100, LB_RESETCONTENT, 0, 0); |
211 | for (key = first234(rsakeys, &e); key; key = next234(&e)) { |
1c2a93c4 |
212 | char listentry[512], *p; |
213 | /* |
214 | * Replace two spaces in the fingerprint with tabs, for |
215 | * nice alignment in the box. |
216 | */ |
217 | rsa_fingerprint(listentry, sizeof(listentry), key); |
218 | p = strchr(listentry, ' '); if (p) *p = '\t'; |
219 | p = strchr(listentry, ' '); if (p) *p = '\t'; |
3c0b3d06 |
220 | SendDlgItemMessage (keylist, 100, LB_ADDSTRING, |
1c2a93c4 |
221 | 0, (LPARAM)listentry); |
3c0b3d06 |
222 | } |
223 | SendDlgItemMessage (keylist, 100, LB_SETCURSEL, (WPARAM) -1, 0); |
224 | } |
225 | } |
226 | |
227 | /* |
5c58ad2d |
228 | * This function loads a key from a file and adds it. |
229 | */ |
75cab814 |
230 | static void add_keyfile(char *filename) { |
5c58ad2d |
231 | char passphrase[PASSPHRASE_MAXLEN]; |
232 | struct RSAKey *key; |
233 | int needs_pass; |
234 | int ret; |
235 | int attempts; |
d4de2d2a |
236 | char *comment; |
237 | struct PassphraseProcStruct pps; |
5c58ad2d |
238 | |
d4de2d2a |
239 | needs_pass = rsakey_encrypted(filename, &comment); |
5c58ad2d |
240 | attempts = 0; |
dcbde236 |
241 | key = smalloc(sizeof(*key)); |
d4de2d2a |
242 | pps.passphrase = passphrase; |
243 | pps.comment = comment; |
5c58ad2d |
244 | do { |
245 | if (needs_pass) { |
246 | int dlgret; |
247 | dlgret = DialogBoxParam(instance, MAKEINTRESOURCE(210), |
248 | NULL, PassphraseProc, |
d4de2d2a |
249 | (LPARAM)&pps); |
5c58ad2d |
250 | if (!dlgret) { |
dcbde236 |
251 | if (comment) sfree(comment); |
252 | sfree(key); |
5c58ad2d |
253 | return; /* operation cancelled */ |
254 | } |
255 | } else |
256 | *passphrase = '\0'; |
6e522441 |
257 | ret = loadrsakey(filename, key, NULL, passphrase); |
5c58ad2d |
258 | attempts++; |
259 | } while (ret == -1); |
dcbde236 |
260 | if (comment) sfree(comment); |
5c58ad2d |
261 | if (ret == 0) { |
5af3a3b6 |
262 | MessageBox(NULL, "Couldn't load private key.", APPNAME, |
5c58ad2d |
263 | MB_OK | MB_ICONERROR); |
dcbde236 |
264 | sfree(key); |
5c58ad2d |
265 | return; |
266 | } |
267 | if (add234(rsakeys, key) != key) |
dcbde236 |
268 | sfree(key); /* already present, don't waste RAM */ |
5c58ad2d |
269 | } |
270 | |
271 | /* |
272 | * This is the main agent function that answers messages. |
273 | */ |
75cab814 |
274 | static void answer_msg(void *msg) { |
d70f60ae |
275 | unsigned char *p = msg; |
276 | unsigned char *ret = msg; |
5c58ad2d |
277 | int type; |
278 | |
5c58ad2d |
279 | /* |
280 | * Get the message type. |
281 | */ |
282 | type = p[4]; |
283 | |
284 | p += 5; |
5c58ad2d |
285 | switch (type) { |
286 | case SSH_AGENTC_REQUEST_RSA_IDENTITIES: |
287 | /* |
288 | * Reply with SSH_AGENT_RSA_IDENTITIES_ANSWER. |
289 | */ |
290 | { |
291 | enum234 e; |
292 | struct RSAKey *key; |
293 | int len, nkeys; |
294 | |
295 | /* |
296 | * Count up the number and length of keys we hold. |
297 | */ |
298 | len = nkeys = 0; |
299 | for (key = first234(rsakeys, &e); key; key = next234(&e)) { |
300 | nkeys++; |
301 | len += 4; /* length field */ |
302 | len += ssh1_bignum_length(key->exponent); |
303 | len += ssh1_bignum_length(key->modulus); |
304 | len += 4 + strlen(key->comment); |
305 | } |
306 | |
307 | /* |
308 | * Packet header is the obvious five bytes, plus four |
309 | * bytes for the key count. |
310 | */ |
311 | len += 5 + 4; |
d70f60ae |
312 | if (len > AGENT_MAX_MSGLEN) |
313 | goto failure; /* aaargh! too much stuff! */ |
314 | PUT_32BIT(ret, len-4); |
315 | ret[4] = SSH_AGENT_RSA_IDENTITIES_ANSWER; |
316 | PUT_32BIT(ret+5, nkeys); |
317 | p = ret + 5 + 4; |
318 | for (key = first234(rsakeys, &e); key; key = next234(&e)) { |
319 | PUT_32BIT(p, ssh1_bignum_bitcount(key->modulus)); |
320 | p += 4; |
321 | p += ssh1_write_bignum(p, key->exponent); |
322 | p += ssh1_write_bignum(p, key->modulus); |
323 | PUT_32BIT(p, strlen(key->comment)); |
324 | memcpy(p+4, key->comment, strlen(key->comment)); |
325 | p += 4 + strlen(key->comment); |
5c58ad2d |
326 | } |
327 | } |
328 | break; |
329 | case SSH_AGENTC_RSA_CHALLENGE: |
330 | /* |
331 | * Reply with either SSH_AGENT_RSA_RESPONSE or |
332 | * SSH_AGENT_FAILURE, depending on whether we have that key |
333 | * or not. |
334 | */ |
335 | { |
336 | struct RSAKey reqkey, *key; |
337 | Bignum challenge, response; |
338 | unsigned char response_source[48], response_md5[16]; |
339 | struct MD5Context md5c; |
340 | int i, len; |
341 | |
342 | p += 4; |
343 | p += ssh1_read_bignum(p, &reqkey.exponent); |
344 | p += ssh1_read_bignum(p, &reqkey.modulus); |
345 | p += ssh1_read_bignum(p, &challenge); |
346 | memcpy(response_source+32, p, 16); p += 16; |
347 | if (GET_32BIT(p) != 1 || |
348 | (key = find234(rsakeys, &reqkey, NULL)) == NULL) { |
349 | freebn(reqkey.exponent); |
350 | freebn(reqkey.modulus); |
351 | freebn(challenge); |
352 | goto failure; |
353 | } |
354 | response = rsadecrypt(challenge, key); |
355 | for (i = 0; i < 32; i++) |
356 | response_source[i] = bignum_byte(response, 31-i); |
357 | |
358 | MD5Init(&md5c); |
359 | MD5Update(&md5c, response_source, 48); |
360 | MD5Final(response_md5, &md5c); |
361 | memset(response_source, 0, 48); /* burn the evidence */ |
362 | freebn(response); /* and that evidence */ |
363 | freebn(challenge); /* yes, and that evidence */ |
364 | freebn(reqkey.exponent); /* and free some memory ... */ |
365 | freebn(reqkey.modulus); /* ... while we're at it. */ |
366 | |
367 | /* |
368 | * Packet is the obvious five byte header, plus sixteen |
369 | * bytes of MD5. |
370 | */ |
371 | len = 5 + 16; |
d70f60ae |
372 | PUT_32BIT(ret, len-4); |
373 | ret[4] = SSH_AGENT_RSA_RESPONSE; |
374 | memcpy(ret+5, response_md5, 16); |
5c58ad2d |
375 | } |
376 | break; |
5c58ad2d |
377 | case SSH_AGENTC_ADD_RSA_IDENTITY: |
378 | /* |
379 | * Add to the list and return SSH_AGENT_SUCCESS, or |
380 | * SSH_AGENT_FAILURE if the key was malformed. |
381 | */ |
3c0b3d06 |
382 | { |
383 | struct RSAKey *key; |
384 | char *comment; |
dcbde236 |
385 | key = smalloc(sizeof(struct RSAKey)); |
3c0b3d06 |
386 | memset(key, 0, sizeof(key)); |
387 | p += makekey(p, key, NULL, 1); |
388 | p += makeprivate(p, key); |
389 | p += ssh1_read_bignum(p, NULL); /* p^-1 mod q */ |
390 | p += ssh1_read_bignum(p, NULL); /* p */ |
391 | p += ssh1_read_bignum(p, NULL); /* q */ |
dcbde236 |
392 | comment = smalloc(GET_32BIT(p)); |
3c0b3d06 |
393 | if (comment) { |
394 | memcpy(comment, p+4, GET_32BIT(p)); |
395 | key->comment = comment; |
396 | } |
397 | PUT_32BIT(ret, 1); |
398 | ret[4] = SSH_AGENT_FAILURE; |
399 | if (add234(rsakeys, key) == key) { |
400 | keylist_update(); |
401 | ret[4] = SSH_AGENT_SUCCESS; |
402 | } else { |
403 | freersakey(key); |
dcbde236 |
404 | sfree(key); |
3c0b3d06 |
405 | } |
406 | } |
5c58ad2d |
407 | break; |
408 | case SSH_AGENTC_REMOVE_RSA_IDENTITY: |
409 | /* |
410 | * Remove from the list and return SSH_AGENT_SUCCESS, or |
411 | * perhaps SSH_AGENT_FAILURE if it wasn't in the list to |
412 | * start with. |
413 | */ |
3c0b3d06 |
414 | { |
415 | struct RSAKey reqkey, *key; |
416 | |
417 | p += makekey(p, &reqkey, NULL, 0); |
418 | key = find234(rsakeys, &reqkey, NULL); |
419 | freebn(reqkey.exponent); |
420 | freebn(reqkey.modulus); |
421 | PUT_32BIT(ret, 1); |
422 | ret[4] = SSH_AGENT_FAILURE; |
423 | if (key) { |
424 | del234(rsakeys, key); |
425 | keylist_update(); |
d4de2d2a |
426 | freersakey(key); |
3c0b3d06 |
427 | ret[4] = SSH_AGENT_SUCCESS; |
428 | } |
429 | } |
5c58ad2d |
430 | break; |
5c58ad2d |
431 | default: |
432 | failure: |
433 | /* |
434 | * Unrecognised message. Return SSH_AGENT_FAILURE. |
435 | */ |
d70f60ae |
436 | PUT_32BIT(ret, 1); |
437 | ret[4] = SSH_AGENT_FAILURE; |
5c58ad2d |
438 | break; |
439 | } |
5c58ad2d |
440 | } |
441 | |
442 | /* |
443 | * Key comparison function for the 2-3-4 tree of RSA keys. |
444 | */ |
75cab814 |
445 | static int cmpkeys(void *av, void *bv) { |
5c58ad2d |
446 | struct RSAKey *a = (struct RSAKey *)av; |
447 | struct RSAKey *b = (struct RSAKey *)bv; |
448 | Bignum am, bm; |
449 | int alen, blen; |
450 | |
451 | am = a->modulus; |
452 | bm = b->modulus; |
453 | /* |
454 | * Compare by length of moduli. |
455 | */ |
456 | alen = ssh1_bignum_bitcount(am); |
457 | blen = ssh1_bignum_bitcount(bm); |
458 | if (alen > blen) return +1; else if (alen < blen) return -1; |
459 | /* |
460 | * Now compare by moduli themselves. |
461 | */ |
462 | alen = (alen + 7) / 8; /* byte count */ |
463 | while (alen-- > 0) { |
464 | int abyte, bbyte; |
465 | abyte = bignum_byte(am, alen); |
466 | bbyte = bignum_byte(bm, alen); |
467 | if (abyte > bbyte) return +1; else if (abyte < bbyte) return -1; |
468 | } |
469 | /* |
470 | * Give up. |
471 | */ |
472 | return 0; |
473 | } |
474 | |
475 | static void error(char *s) { |
476 | MessageBox(hwnd, s, APPNAME, MB_OK | MB_ICONERROR); |
477 | } |
478 | |
479 | /* |
ab162329 |
480 | * Prompt for a key file to add, and add it. |
481 | */ |
482 | static void prompt_add_keyfile(void) { |
483 | OPENFILENAME of; |
484 | char filename[FILENAME_MAX]; |
485 | memset(&of, 0, sizeof(of)); |
486 | #ifdef OPENFILENAME_SIZE_VERSION_400 |
487 | of.lStructSize = OPENFILENAME_SIZE_VERSION_400; |
488 | #else |
489 | of.lStructSize = sizeof(of); |
490 | #endif |
491 | of.hwndOwner = hwnd; |
492 | of.lpstrFilter = "All Files\0*\0\0\0"; |
493 | of.lpstrCustomFilter = NULL; |
494 | of.nFilterIndex = 1; |
495 | of.lpstrFile = filename; *filename = '\0'; |
496 | of.nMaxFile = sizeof(filename); |
497 | of.lpstrFileTitle = NULL; |
498 | of.lpstrInitialDir = NULL; |
499 | of.lpstrTitle = "Select Private Key File"; |
500 | of.Flags = 0; |
501 | if (GetOpenFileName(&of)) { |
502 | add_keyfile(filename); |
503 | keylist_update(); |
504 | } |
505 | } |
506 | |
507 | /* |
5c58ad2d |
508 | * Dialog-box function for the key list box. |
509 | */ |
510 | static int CALLBACK KeyListProc(HWND hwnd, UINT msg, |
511 | WPARAM wParam, LPARAM lParam) { |
512 | enum234 e; |
513 | struct RSAKey *key; |
5c58ad2d |
514 | |
515 | switch (msg) { |
516 | case WM_INITDIALOG: |
1c2a93c4 |
517 | keylist = hwnd; |
518 | { |
519 | static int tabs[2] = {25, 175}; |
520 | SendDlgItemMessage (hwnd, 100, LB_SETTABSTOPS, 2, |
521 | (LPARAM) tabs); |
522 | } |
523 | keylist_update(); |
5c58ad2d |
524 | return 0; |
525 | case WM_COMMAND: |
526 | switch (LOWORD(wParam)) { |
527 | case IDOK: |
528 | case IDCANCEL: |
529 | keylist = NULL; |
530 | DestroyWindow(hwnd); |
531 | return 0; |
532 | case 101: /* add key */ |
533 | if (HIWORD(wParam) == BN_CLICKED || |
534 | HIWORD(wParam) == BN_DOUBLECLICKED) { |
ab162329 |
535 | prompt_add_keyfile(); |
5c58ad2d |
536 | } |
537 | return 0; |
538 | case 102: /* remove key */ |
539 | if (HIWORD(wParam) == BN_CLICKED || |
540 | HIWORD(wParam) == BN_DOUBLECLICKED) { |
541 | int n = SendDlgItemMessage (hwnd, 100, LB_GETCURSEL, 0, 0); |
f70a606e |
542 | if (n == LB_ERR) { |
5c58ad2d |
543 | MessageBeep(0); |
544 | break; |
545 | } |
546 | for (key = first234(rsakeys, &e); key; key = next234(&e)) |
547 | if (n-- == 0) |
548 | break; |
549 | del234(rsakeys, key); |
550 | freersakey(key); free(key); |
1c2a93c4 |
551 | keylist_update(); |
5c58ad2d |
552 | } |
553 | return 0; |
554 | } |
555 | return 0; |
556 | case WM_CLOSE: |
557 | keylist = NULL; |
558 | DestroyWindow(hwnd); |
559 | return 0; |
560 | } |
561 | return 0; |
562 | } |
563 | |
564 | static LRESULT CALLBACK WndProc (HWND hwnd, UINT message, |
565 | WPARAM wParam, LPARAM lParam) { |
566 | int ret; |
567 | static int menuinprogress; |
568 | |
569 | switch (message) { |
570 | case WM_SYSTRAY: |
571 | if (lParam == WM_RBUTTONUP) { |
572 | POINT cursorpos; |
573 | GetCursorPos(&cursorpos); |
574 | PostMessage(hwnd, WM_SYSTRAY2, cursorpos.x, cursorpos.y); |
905beba5 |
575 | } else if (lParam == WM_LBUTTONDBLCLK) { |
576 | /* Equivalent to IDM_VIEWKEYS. */ |
577 | PostMessage(hwnd, WM_COMMAND, IDM_VIEWKEYS, 0); |
5c58ad2d |
578 | } |
579 | break; |
580 | case WM_SYSTRAY2: |
581 | if (!menuinprogress) { |
582 | menuinprogress = 1; |
583 | SetForegroundWindow(hwnd); |
584 | ret = TrackPopupMenu(systray_menu, |
585 | TPM_RIGHTALIGN | TPM_BOTTOMALIGN | |
586 | TPM_RIGHTBUTTON, |
587 | wParam, lParam, 0, hwnd, NULL); |
588 | menuinprogress = 0; |
589 | } |
590 | break; |
591 | case WM_COMMAND: |
592 | case WM_SYSCOMMAND: |
593 | switch (wParam & ~0xF) { /* low 4 bits reserved to Windows */ |
594 | case IDM_CLOSE: |
595 | SendMessage(hwnd, WM_CLOSE, 0, 0); |
596 | break; |
597 | case IDM_VIEWKEYS: |
598 | if (!keylist) { |
599 | keylist = CreateDialog (instance, MAKEINTRESOURCE(211), |
600 | NULL, KeyListProc); |
601 | ShowWindow (keylist, SW_SHOWNORMAL); |
905beba5 |
602 | /* |
603 | * Sometimes the window comes up minimised / hidden |
604 | * for no obvious reason. Prevent this. |
605 | */ |
606 | SetForegroundWindow(keylist); |
607 | SetWindowPos (keylist, HWND_TOP, 0, 0, 0, 0, |
608 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
5c58ad2d |
609 | } |
610 | break; |
ab162329 |
611 | case IDM_ADDKEY: |
612 | prompt_add_keyfile(); |
613 | break; |
5af3a3b6 |
614 | case IDM_ABOUT: |
615 | if (!aboutbox) { |
616 | aboutbox = CreateDialog (instance, MAKEINTRESOURCE(213), |
617 | NULL, AboutProc); |
618 | ShowWindow (aboutbox, SW_SHOWNORMAL); |
619 | /* |
620 | * Sometimes the window comes up minimised / hidden |
621 | * for no obvious reason. Prevent this. |
622 | */ |
623 | SetForegroundWindow(aboutbox); |
624 | SetWindowPos (aboutbox, HWND_TOP, 0, 0, 0, 0, |
625 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
626 | } |
627 | break; |
5c58ad2d |
628 | } |
629 | break; |
630 | case WM_DESTROY: |
631 | PostQuitMessage (0); |
632 | return 0; |
633 | case WM_COPYDATA: |
634 | { |
635 | COPYDATASTRUCT *cds; |
d70f60ae |
636 | char *mapname; |
637 | void *p; |
638 | HANDLE filemap, proc; |
639 | PSID mapowner, procowner; |
640 | PSECURITY_DESCRIPTOR psd1 = NULL, psd2 = NULL; |
641 | int ret = 0; |
5c58ad2d |
642 | |
643 | cds = (COPYDATASTRUCT *)lParam; |
d70f60ae |
644 | if (cds->dwData != AGENT_COPYDATA_ID) |
645 | return 0; /* not our message, mate */ |
646 | mapname = (char *)cds->lpData; |
647 | if (mapname[cds->cbData - 1] != '\0') |
648 | return 0; /* failure to be ASCIZ! */ |
649 | #ifdef DEBUG_IPC |
650 | debug(("mapname is :%s:\r\n", mapname)); |
651 | #endif |
652 | filemap = OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, mapname); |
653 | #ifdef DEBUG_IPC |
654 | debug(("filemap is %p\r\n", filemap)); |
655 | #endif |
656 | if (filemap != NULL && filemap != INVALID_HANDLE_VALUE) { |
657 | int rc; |
123bc6ea |
658 | #ifndef NO_SECURITY |
016ef8ab |
659 | if (has_security) { |
660 | if ((proc = OpenProcess(MAXIMUM_ALLOWED, FALSE, |
661 | GetCurrentProcessId())) == NULL) { |
d70f60ae |
662 | #ifdef DEBUG_IPC |
016ef8ab |
663 | debug(("couldn't get handle for process\r\n")); |
d70f60ae |
664 | #endif |
016ef8ab |
665 | return 0; |
666 | } |
667 | if (getsecurityinfo(proc, SE_KERNEL_OBJECT, |
668 | OWNER_SECURITY_INFORMATION, |
669 | &procowner, NULL, NULL, NULL, |
670 | &psd2) != ERROR_SUCCESS) { |
d70f60ae |
671 | #ifdef DEBUG_IPC |
016ef8ab |
672 | debug(("couldn't get owner info for process\r\n")); |
d70f60ae |
673 | #endif |
016ef8ab |
674 | CloseHandle(proc); |
675 | return 0; /* unable to get security info */ |
676 | } |
d70f60ae |
677 | CloseHandle(proc); |
016ef8ab |
678 | if ((rc = getsecurityinfo(filemap, SE_KERNEL_OBJECT, |
679 | OWNER_SECURITY_INFORMATION, |
680 | &mapowner, NULL, NULL, NULL, |
681 | &psd1) != ERROR_SUCCESS)) { |
d70f60ae |
682 | #ifdef DEBUG_IPC |
016ef8ab |
683 | debug(("couldn't get owner info for filemap: %d\r\n", rc)); |
d70f60ae |
684 | #endif |
016ef8ab |
685 | return 0; |
686 | } |
687 | #ifdef DEBUG_IPC |
688 | debug(("got security stuff\r\n")); |
689 | #endif |
690 | if (!EqualSid(mapowner, procowner)) |
691 | return 0; /* security ID mismatch! */ |
d70f60ae |
692 | #ifdef DEBUG_IPC |
016ef8ab |
693 | debug(("security stuff matched\r\n")); |
d70f60ae |
694 | #endif |
016ef8ab |
695 | LocalFree(psd1); |
696 | LocalFree(psd2); |
697 | } else { |
d70f60ae |
698 | #ifdef DEBUG_IPC |
016ef8ab |
699 | debug(("security APIs not present\r\n")); |
d70f60ae |
700 | #endif |
016ef8ab |
701 | } |
123bc6ea |
702 | #endif |
d70f60ae |
703 | p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0); |
704 | #ifdef DEBUG_IPC |
705 | debug(("p is %p\r\n", p)); |
706 | {int i; for(i=0;i<5;i++)debug(("p[%d]=%02x\r\n", i, ((unsigned char *)p)[i]));} |
707 | #endif |
708 | answer_msg(p); |
709 | ret = 1; |
710 | UnmapViewOfFile(p); |
711 | } |
712 | CloseHandle(filemap); |
713 | return ret; |
5c58ad2d |
714 | } |
5c58ad2d |
715 | } |
716 | |
717 | return DefWindowProc (hwnd, message, wParam, lParam); |
718 | } |
719 | |
720 | int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) { |
721 | WNDCLASS wndclass; |
5c58ad2d |
722 | MSG msg; |
016ef8ab |
723 | OSVERSIONINFO osi; |
724 | HMODULE advapi; |
725 | |
726 | /* |
727 | * Determine whether we're an NT system (should have security |
728 | * APIs) or a non-NT system (don't do security). |
729 | */ |
730 | memset(&osi, 0, sizeof(OSVERSIONINFO)); |
731 | osi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); |
732 | if (GetVersionEx(&osi) && osi.dwPlatformId==VER_PLATFORM_WIN32_NT) { |
733 | has_security = TRUE; |
734 | } else |
735 | has_security = FALSE; |
736 | |
737 | if (has_security) { |
123bc6ea |
738 | #ifndef NO_SECURITY |
016ef8ab |
739 | /* |
740 | * Attempt to ge the security API we need. |
741 | */ |
742 | advapi = LoadLibrary("ADVAPI32.DLL"); |
743 | getsecurityinfo = (gsi_fn_t)GetProcAddress(advapi, "GetSecurityInfo"); |
744 | if (!getsecurityinfo) { |
745 | MessageBox(NULL, |
746 | "Unable to access security APIs. Pageant will\n" |
747 | "not run, in case it causes a security breach.", |
748 | "Pageant Fatal Error", MB_ICONERROR | MB_OK); |
749 | return 1; |
750 | } |
123bc6ea |
751 | #else |
752 | MessageBox(NULL, |
753 | "This program has been compiled for Win9X and will\n" |
754 | "not run on NT, in case it causes a security breach.", |
755 | "Pageant Fatal Error", MB_ICONERROR | MB_OK); |
756 | return 1; |
757 | #endif |
016ef8ab |
758 | } else |
759 | advapi = NULL; |
5c58ad2d |
760 | |
2faac2e1 |
761 | /* |
762 | * First bomb out totally if we are already running. |
763 | */ |
764 | if (FindWindow("Pageant", "Pageant")) { |
765 | MessageBox(NULL, "Pageant is already running", "Pageant Error", |
766 | MB_ICONERROR | MB_OK); |
016ef8ab |
767 | if (advapi) FreeLibrary(advapi); |
2faac2e1 |
768 | return 0; |
769 | } |
770 | |
5c58ad2d |
771 | instance = inst; |
772 | |
773 | if (!prev) { |
774 | wndclass.style = 0; |
775 | wndclass.lpfnWndProc = WndProc; |
776 | wndclass.cbClsExtra = 0; |
777 | wndclass.cbWndExtra = 0; |
778 | wndclass.hInstance = inst; |
779 | wndclass.hIcon = LoadIcon (inst, |
780 | MAKEINTRESOURCE(IDI_MAINICON)); |
781 | wndclass.hCursor = LoadCursor (NULL, IDC_IBEAM); |
782 | wndclass.hbrBackground = GetStockObject (BLACK_BRUSH); |
783 | wndclass.lpszMenuName = NULL; |
784 | wndclass.lpszClassName = APPNAME; |
785 | |
786 | RegisterClass (&wndclass); |
787 | } |
788 | |
789 | hwnd = keylist = NULL; |
790 | |
791 | hwnd = CreateWindow (APPNAME, APPNAME, |
792 | WS_OVERLAPPEDWINDOW | WS_VSCROLL, |
793 | CW_USEDEFAULT, CW_USEDEFAULT, |
794 | 100, 100, NULL, NULL, inst, NULL); |
795 | |
796 | /* Set up a system tray icon */ |
797 | { |
798 | BOOL res; |
799 | NOTIFYICONDATA tnid; |
800 | HICON hicon; |
801 | |
802 | #ifdef NIM_SETVERSION |
803 | tnid.uVersion = 0; |
804 | res = Shell_NotifyIcon(NIM_SETVERSION, &tnid); |
805 | #endif |
806 | |
807 | tnid.cbSize = sizeof(NOTIFYICONDATA); |
808 | tnid.hWnd = hwnd; |
809 | tnid.uID = 1; /* unique within this systray use */ |
810 | tnid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP; |
811 | tnid.uCallbackMessage = WM_SYSTRAY; |
812 | tnid.hIcon = hicon = LoadIcon (instance, MAKEINTRESOURCE(201)); |
813 | strcpy(tnid.szTip, "Pageant (PuTTY authentication agent)"); |
814 | |
815 | res = Shell_NotifyIcon(NIM_ADD, &tnid); |
816 | |
817 | if (hicon) |
818 | DestroyIcon(hicon); |
819 | |
820 | systray_menu = CreatePopupMenu(); |
ab162329 |
821 | /* accelerators used: vkxa */ |
70acd63f |
822 | AppendMenu (systray_menu, MF_ENABLED, IDM_VIEWKEYS, "&View Keys"); |
ab162329 |
823 | AppendMenu (systray_menu, MF_ENABLED, IDM_ADDKEY, "Add &Key"); |
5af3a3b6 |
824 | AppendMenu (systray_menu, MF_ENABLED, IDM_ABOUT, "&About"); |
70acd63f |
825 | AppendMenu (systray_menu, MF_ENABLED, IDM_CLOSE, "E&xit"); |
5c58ad2d |
826 | } |
827 | |
828 | ShowWindow (hwnd, SW_HIDE); |
829 | |
830 | /* |
dacbd0e8 |
831 | * Initialise storage for RSA keys. |
832 | */ |
833 | rsakeys = newtree234(cmpkeys); |
834 | |
835 | /* |
836 | * Process the command line and add RSA keys as listed on it. |
5c58ad2d |
837 | */ |
838 | { |
8c42f28c |
839 | char *p; |
840 | int inquotes = 0; |
841 | p = cmdline; |
dacbd0e8 |
842 | while (*p) { |
843 | while (*p && isspace(*p)) p++; |
844 | if (*p && !isspace(*p)) { |
8c42f28c |
845 | char *q = p, *pp = p; |
846 | while (*p && (inquotes || !isspace(*p))) |
847 | { |
848 | if (*p == '"') { |
849 | inquotes = !inquotes; |
850 | p++; |
851 | continue; |
852 | } |
853 | *pp++ = *p++; |
854 | } |
855 | if (*pp) { |
856 | if (*p) p++; |
857 | *pp++ = '\0'; |
858 | } |
dacbd0e8 |
859 | add_keyfile(q); |
860 | } |
861 | } |
5c58ad2d |
862 | } |
863 | |
864 | /* |
dacbd0e8 |
865 | * Main message loop. |
5c58ad2d |
866 | */ |
5c58ad2d |
867 | while (GetMessage(&msg, NULL, 0, 0) == 1) { |
868 | TranslateMessage(&msg); |
869 | DispatchMessage(&msg); |
870 | } |
871 | |
872 | /* Clean up the system tray icon */ |
873 | { |
874 | NOTIFYICONDATA tnid; |
875 | |
876 | tnid.cbSize = sizeof(NOTIFYICONDATA); |
877 | tnid.hWnd = hwnd; |
878 | tnid.uID = 1; |
879 | |
880 | Shell_NotifyIcon(NIM_DELETE, &tnid); |
881 | |
882 | DestroyMenu(systray_menu); |
883 | } |
884 | |
016ef8ab |
885 | if (advapi) FreeLibrary(advapi); |
5c58ad2d |
886 | exit(msg.wParam); |
887 | } |