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> |
ddecd643 |
12 | #include <tchar.h> |
13 | |
5c58ad2d |
14 | #include "ssh.h" |
15 | #include "tree234.h" |
16 | |
17 | #define IDI_MAINICON 200 |
18 | #define IDI_TRAYICON 201 |
19 | |
20 | #define WM_XUSER (WM_USER + 0x2000) |
21 | #define WM_SYSTRAY (WM_XUSER + 6) |
22 | #define WM_SYSTRAY2 (WM_XUSER + 7) |
d70f60ae |
23 | |
24 | #define AGENT_COPYDATA_ID 0x804e50ba /* random goop */ |
25 | |
26 | /* |
27 | * FIXME: maybe some day we can sort this out ... |
28 | */ |
29 | #define AGENT_MAX_MSGLEN 8192 |
5c58ad2d |
30 | |
31 | #define IDM_CLOSE 0x0010 |
32 | #define IDM_VIEWKEYS 0x0020 |
ab162329 |
33 | #define IDM_ADDKEY 0x0030 |
34 | #define IDM_ABOUT 0x0040 |
5c58ad2d |
35 | |
36 | #define APPNAME "Pageant" |
37 | |
5af3a3b6 |
38 | extern char ver[]; |
39 | |
75cab814 |
40 | static HINSTANCE instance; |
41 | static HWND hwnd; |
42 | static HWND keylist; |
43 | static HWND aboutbox; |
44 | static HMENU systray_menu; |
ddecd643 |
45 | static int already_running; |
5c58ad2d |
46 | |
45cebe79 |
47 | static tree234 *rsakeys, *ssh2keys; |
5c58ad2d |
48 | |
75cab814 |
49 | static int has_security; |
123bc6ea |
50 | #ifndef NO_SECURITY |
016ef8ab |
51 | typedef DWORD (WINAPI *gsi_fn_t) |
52 | (HANDLE, SE_OBJECT_TYPE, SECURITY_INFORMATION, |
53 | PSID *, PSID *, PACL *, PACL *, |
54 | PSECURITY_DESCRIPTOR *); |
75cab814 |
55 | static gsi_fn_t getsecurityinfo; |
123bc6ea |
56 | #endif |
016ef8ab |
57 | |
5c58ad2d |
58 | /* |
59 | * We need this to link with the RSA code, because rsaencrypt() |
45cebe79 |
60 | * pads its data with random bytes. Since we only use rsadecrypt() |
61 | * and the signing functions, which are deterministic, this should |
62 | * never be called. |
63 | * |
5c58ad2d |
64 | * If it _is_ called, there is a _serious_ problem, because it |
65 | * won't generate true random numbers. So we must scream, panic, |
66 | * and exit immediately if that should happen. |
67 | */ |
68 | int random_byte(void) { |
69 | MessageBox(hwnd, "Internal Error", APPNAME, MB_OK | MB_ICONERROR); |
70 | exit(0); |
71 | } |
72 | |
73 | /* |
45cebe79 |
74 | * Blob structure for passing to the asymmetric SSH2 key compare |
75 | * function, prototyped here. |
76 | */ |
77 | struct blob { |
78 | unsigned char *blob; |
79 | int len; |
80 | }; |
81 | static int cmpkeys_ssh2_asymm(void *av, void *bv); |
82 | |
83 | /* |
5c58ad2d |
84 | * This function is needed to link with the DES code. We need not |
85 | * have it do anything at all. |
86 | */ |
87 | void logevent(char *msg) { |
88 | } |
89 | |
90 | #define GET_32BIT(cp) \ |
91 | (((unsigned long)(unsigned char)(cp)[0] << 24) | \ |
92 | ((unsigned long)(unsigned char)(cp)[1] << 16) | \ |
93 | ((unsigned long)(unsigned char)(cp)[2] << 8) | \ |
94 | ((unsigned long)(unsigned char)(cp)[3])) |
95 | |
96 | #define PUT_32BIT(cp, value) { \ |
97 | (cp)[0] = (unsigned char)((value) >> 24); \ |
98 | (cp)[1] = (unsigned char)((value) >> 16); \ |
99 | (cp)[2] = (unsigned char)((value) >> 8); \ |
100 | (cp)[3] = (unsigned char)(value); } |
101 | |
102 | #define PASSPHRASE_MAXLEN 512 |
103 | |
d4de2d2a |
104 | struct PassphraseProcStruct { |
105 | char *passphrase; |
106 | char *comment; |
107 | }; |
108 | |
5c58ad2d |
109 | /* |
5af3a3b6 |
110 | * Dialog-box function for the Licence box. |
111 | */ |
112 | static int CALLBACK LicenceProc (HWND hwnd, UINT msg, |
113 | WPARAM wParam, LPARAM lParam) { |
114 | switch (msg) { |
115 | case WM_INITDIALOG: |
116 | return 1; |
117 | case WM_COMMAND: |
118 | switch (LOWORD(wParam)) { |
119 | case IDOK: |
120 | EndDialog(hwnd, 1); |
121 | return 0; |
122 | } |
123 | return 0; |
124 | case WM_CLOSE: |
125 | EndDialog(hwnd, 1); |
126 | return 0; |
127 | } |
128 | return 0; |
129 | } |
130 | |
131 | /* |
132 | * Dialog-box function for the About box. |
133 | */ |
134 | static int CALLBACK AboutProc (HWND hwnd, UINT msg, |
135 | WPARAM wParam, LPARAM lParam) { |
136 | switch (msg) { |
137 | case WM_INITDIALOG: |
138 | SetDlgItemText (hwnd, 100, ver); |
139 | return 1; |
140 | case WM_COMMAND: |
141 | switch (LOWORD(wParam)) { |
142 | case IDOK: |
143 | aboutbox = NULL; |
144 | DestroyWindow (hwnd); |
145 | return 0; |
146 | case 101: |
147 | EnableWindow(hwnd, 0); |
148 | DialogBox (instance, MAKEINTRESOURCE(214), NULL, LicenceProc); |
149 | EnableWindow(hwnd, 1); |
150 | SetActiveWindow(hwnd); |
151 | return 0; |
152 | } |
153 | return 0; |
154 | case WM_CLOSE: |
155 | aboutbox = NULL; |
156 | DestroyWindow (hwnd); |
157 | return 0; |
158 | } |
159 | return 0; |
160 | } |
161 | |
162 | /* |
5c58ad2d |
163 | * Dialog-box function for the passphrase box. |
164 | */ |
165 | static int CALLBACK PassphraseProc(HWND hwnd, UINT msg, |
166 | WPARAM wParam, LPARAM lParam) { |
167 | static char *passphrase; |
d4de2d2a |
168 | struct PassphraseProcStruct *p; |
5c58ad2d |
169 | |
170 | switch (msg) { |
171 | case WM_INITDIALOG: |
45cebe79 |
172 | /* |
173 | * Centre the window. |
174 | */ |
175 | { /* centre the window */ |
176 | RECT rs, rd; |
177 | HWND hw; |
178 | |
179 | hw = GetDesktopWindow(); |
180 | if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd)) |
181 | MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2, |
182 | (rs.bottom + rs.top + rd.top - rd.bottom)/2, |
183 | rd.right-rd.left, rd.bottom-rd.top, TRUE); |
184 | } |
185 | |
ab162329 |
186 | SetForegroundWindow(hwnd); |
187 | SetWindowPos (hwnd, HWND_TOP, 0, 0, 0, 0, |
188 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
d4de2d2a |
189 | p = (struct PassphraseProcStruct *)lParam; |
190 | passphrase = p->passphrase; |
191 | if (p->comment) |
192 | SetDlgItemText(hwnd, 101, p->comment); |
5c58ad2d |
193 | *passphrase = 0; |
194 | return 0; |
195 | case WM_COMMAND: |
196 | switch (LOWORD(wParam)) { |
197 | case IDOK: |
198 | if (*passphrase) |
199 | EndDialog (hwnd, 1); |
200 | else |
201 | MessageBeep (0); |
202 | return 0; |
203 | case IDCANCEL: |
204 | EndDialog (hwnd, 0); |
205 | return 0; |
206 | case 102: /* edit box */ |
207 | if (HIWORD(wParam) == EN_CHANGE) { |
208 | GetDlgItemText (hwnd, 102, passphrase, PASSPHRASE_MAXLEN-1); |
209 | passphrase[PASSPHRASE_MAXLEN-1] = '\0'; |
210 | } |
211 | return 0; |
212 | } |
213 | return 0; |
214 | case WM_CLOSE: |
215 | EndDialog (hwnd, 0); |
216 | return 0; |
217 | } |
218 | return 0; |
219 | } |
220 | |
221 | /* |
3c0b3d06 |
222 | * Update the visible key list. |
223 | */ |
75cab814 |
224 | static void keylist_update(void) { |
45cebe79 |
225 | struct RSAKey *rkey; |
226 | struct ssh2_userkey *skey; |
3c0b3d06 |
227 | enum234 e; |
228 | |
229 | if (keylist) { |
230 | SendDlgItemMessage(keylist, 100, LB_RESETCONTENT, 0, 0); |
45cebe79 |
231 | for (rkey = first234(rsakeys, &e); rkey; rkey = next234(&e)) { |
232 | char listentry[512], *p; |
233 | /* |
234 | * Replace two spaces in the fingerprint with tabs, for |
235 | * nice alignment in the box. |
236 | */ |
237 | strcpy(listentry, "ssh1\t"); |
238 | p = listentry+strlen(listentry); |
239 | rsa_fingerprint(p, sizeof(listentry)-(p-listentry), rkey); |
240 | p = strchr(listentry, ' '); if (p) *p = '\t'; |
241 | p = strchr(listentry, ' '); if (p) *p = '\t'; |
242 | SendDlgItemMessage (keylist, 100, LB_ADDSTRING, |
243 | 0, (LPARAM)listentry); |
244 | } |
245 | for (skey = first234(ssh2keys, &e); skey; skey = next234(&e)) { |
1c2a93c4 |
246 | char listentry[512], *p; |
45cebe79 |
247 | int len; |
1c2a93c4 |
248 | /* |
249 | * Replace two spaces in the fingerprint with tabs, for |
250 | * nice alignment in the box. |
251 | */ |
45cebe79 |
252 | p = skey->alg->fingerprint(skey->data); |
253 | strncpy(listentry, p, sizeof(listentry)); |
1c2a93c4 |
254 | p = strchr(listentry, ' '); if (p) *p = '\t'; |
255 | p = strchr(listentry, ' '); if (p) *p = '\t'; |
45cebe79 |
256 | len = strlen(listentry); |
257 | if (len < sizeof(listentry)-2) { |
258 | listentry[len] = '\t'; |
259 | strncpy(listentry+len+1, skey->comment, sizeof(listentry)-len-1); |
260 | } |
3c0b3d06 |
261 | SendDlgItemMessage (keylist, 100, LB_ADDSTRING, |
1c2a93c4 |
262 | 0, (LPARAM)listentry); |
3c0b3d06 |
263 | } |
264 | SendDlgItemMessage (keylist, 100, LB_SETCURSEL, (WPARAM) -1, 0); |
265 | } |
266 | } |
267 | |
268 | /* |
5c58ad2d |
269 | * This function loads a key from a file and adds it. |
270 | */ |
75cab814 |
271 | static void add_keyfile(char *filename) { |
5c58ad2d |
272 | char passphrase[PASSPHRASE_MAXLEN]; |
45cebe79 |
273 | struct RSAKey *rkey; |
274 | struct ssh2_userkey *skey; |
5c58ad2d |
275 | int needs_pass; |
276 | int ret; |
277 | int attempts; |
d4de2d2a |
278 | char *comment; |
279 | struct PassphraseProcStruct pps; |
45cebe79 |
280 | int ver; |
281 | |
282 | ver = keyfile_version(filename); |
283 | if (ver == 0) { |
284 | MessageBox(NULL, "Couldn't load private key.", APPNAME, |
285 | MB_OK | MB_ICONERROR); |
286 | return; |
287 | } |
5c58ad2d |
288 | |
45cebe79 |
289 | if (ver == 1) |
290 | needs_pass = rsakey_encrypted(filename, &comment); |
291 | else |
292 | needs_pass = ssh2_userkey_encrypted(filename, &comment); |
5c58ad2d |
293 | attempts = 0; |
45cebe79 |
294 | if (ver == 1) |
295 | rkey = smalloc(sizeof(*rkey)); |
d4de2d2a |
296 | pps.passphrase = passphrase; |
297 | pps.comment = comment; |
5c58ad2d |
298 | do { |
299 | if (needs_pass) { |
300 | int dlgret; |
301 | dlgret = DialogBoxParam(instance, MAKEINTRESOURCE(210), |
302 | NULL, PassphraseProc, |
d4de2d2a |
303 | (LPARAM)&pps); |
5c58ad2d |
304 | if (!dlgret) { |
dcbde236 |
305 | if (comment) sfree(comment); |
45cebe79 |
306 | if (ver == 1) |
307 | sfree(rkey); |
5c58ad2d |
308 | return; /* operation cancelled */ |
309 | } |
310 | } else |
311 | *passphrase = '\0'; |
45cebe79 |
312 | if (ver == 1) |
313 | ret = loadrsakey(filename, rkey, passphrase); |
314 | else { |
315 | skey = ssh2_load_userkey(filename, passphrase); |
316 | if (skey == SSH2_WRONG_PASSPHRASE) |
317 | ret = -1; |
318 | else if (!skey) |
319 | ret = 0; |
320 | else |
321 | ret = 1; |
322 | } |
5c58ad2d |
323 | attempts++; |
324 | } while (ret == -1); |
dcbde236 |
325 | if (comment) sfree(comment); |
5c58ad2d |
326 | if (ret == 0) { |
5af3a3b6 |
327 | MessageBox(NULL, "Couldn't load private key.", APPNAME, |
5c58ad2d |
328 | MB_OK | MB_ICONERROR); |
45cebe79 |
329 | if (ver == 1) |
330 | sfree(rkey); |
5c58ad2d |
331 | return; |
332 | } |
45cebe79 |
333 | if (ver == 1) { |
ddecd643 |
334 | if (already_running) { |
335 | unsigned char *request, *response; |
336 | int reqlen, clen, resplen; |
337 | |
ddecd643 |
338 | clen = strlen(rkey->comment); |
ddecd643 |
339 | |
340 | reqlen = 4 + 1 + /* length, message type */ |
341 | 4 + /* bit count */ |
342 | ssh1_bignum_length(rkey->modulus) + |
343 | ssh1_bignum_length(rkey->exponent) + |
344 | ssh1_bignum_length(rkey->private_exponent) + |
345 | ssh1_bignum_length(rkey->iqmp) + |
346 | ssh1_bignum_length(rkey->p) + |
347 | ssh1_bignum_length(rkey->q) + |
348 | 4 + clen /* comment */ |
349 | ; |
ddecd643 |
350 | |
351 | request = smalloc(reqlen); |
ddecd643 |
352 | |
ddecd643 |
353 | request[4] = SSH1_AGENTC_ADD_RSA_IDENTITY; |
ddecd643 |
354 | reqlen = 5; |
355 | PUT_32BIT(request+reqlen, bignum_bitcount(rkey->modulus)); |
356 | reqlen += 4; |
357 | reqlen += ssh1_write_bignum(request+reqlen, rkey->modulus); |
358 | reqlen += ssh1_write_bignum(request+reqlen, rkey->exponent); |
359 | reqlen += ssh1_write_bignum(request+reqlen, rkey->private_exponent); |
360 | reqlen += ssh1_write_bignum(request+reqlen, rkey->iqmp); |
361 | reqlen += ssh1_write_bignum(request+reqlen, rkey->p); |
362 | reqlen += ssh1_write_bignum(request+reqlen, rkey->q); |
363 | PUT_32BIT(request+reqlen, clen); |
364 | memcpy(request+reqlen+4, rkey->comment, clen); |
365 | reqlen += 4+clen; |
366 | PUT_32BIT(request, reqlen-4); |
367 | |
ddecd643 |
368 | agent_query(request, reqlen, &response, &resplen); |
ddecd643 |
369 | if (resplen < 5 || response[4] != SSH_AGENT_SUCCESS) |
370 | MessageBox(NULL, "The already running Pageant " |
371 | "refused to add the key.", APPNAME, |
372 | MB_OK | MB_ICONERROR); |
373 | } else { |
374 | if (add234(rsakeys, rkey) != rkey) |
375 | sfree(rkey); /* already present, don't waste RAM */ |
376 | } |
45cebe79 |
377 | } else { |
ddecd643 |
378 | if (already_running) { |
379 | unsigned char *request, *response; |
380 | int reqlen, alglen, clen, keybloblen, resplen; |
ddecd643 |
381 | alglen = strlen(skey->alg->name); |
ddecd643 |
382 | clen = strlen(skey->comment); |
ddecd643 |
383 | |
ddecd643 |
384 | keybloblen = skey->alg->openssh_fmtkey(skey->data, NULL, 0); |
ddecd643 |
385 | |
ddecd643 |
386 | reqlen = 4 + 1 + /* length, message type */ |
387 | 4 + alglen + /* algorithm name */ |
388 | keybloblen + /* key data */ |
389 | 4 + clen /* comment */ |
390 | ; |
ddecd643 |
391 | |
ddecd643 |
392 | request = smalloc(reqlen); |
ddecd643 |
393 | |
394 | request[4] = SSH2_AGENTC_ADD_IDENTITY; |
ddecd643 |
395 | reqlen = 5; |
ddecd643 |
396 | PUT_32BIT(request+reqlen, alglen); |
ddecd643 |
397 | reqlen += 4; |
ddecd643 |
398 | memcpy(request+reqlen, skey->alg->name, alglen); |
ddecd643 |
399 | reqlen += alglen; |
ddecd643 |
400 | reqlen += skey->alg->openssh_fmtkey(skey->data, |
401 | request+reqlen, keybloblen); |
ddecd643 |
402 | PUT_32BIT(request+reqlen, clen); |
ddecd643 |
403 | memcpy(request+reqlen+4, skey->comment, clen); |
ddecd643 |
404 | PUT_32BIT(request, reqlen-4); |
ddecd643 |
405 | reqlen += clen+4; |
406 | |
407 | agent_query(request, reqlen, &response, &resplen); |
ddecd643 |
408 | if (resplen < 5 || response[4] != SSH_AGENT_SUCCESS) |
409 | MessageBox(NULL, "The already running Pageant" |
410 | "refused to add the key.", APPNAME, |
411 | MB_OK | MB_ICONERROR); |
ddecd643 |
412 | } else { |
413 | if (add234(ssh2keys, skey) != skey) { |
414 | skey->alg->freekey(skey->data); |
415 | sfree(skey); /* already present, don't waste RAM */ |
416 | } |
45cebe79 |
417 | } |
418 | } |
5c58ad2d |
419 | } |
420 | |
421 | /* |
422 | * This is the main agent function that answers messages. |
423 | */ |
75cab814 |
424 | static void answer_msg(void *msg) { |
d70f60ae |
425 | unsigned char *p = msg; |
426 | unsigned char *ret = msg; |
5c58ad2d |
427 | int type; |
428 | |
5c58ad2d |
429 | /* |
430 | * Get the message type. |
431 | */ |
432 | type = p[4]; |
433 | |
434 | p += 5; |
5c58ad2d |
435 | switch (type) { |
45cebe79 |
436 | case SSH1_AGENTC_REQUEST_RSA_IDENTITIES: |
5c58ad2d |
437 | /* |
45cebe79 |
438 | * Reply with SSH1_AGENT_RSA_IDENTITIES_ANSWER. |
5c58ad2d |
439 | */ |
440 | { |
441 | enum234 e; |
442 | struct RSAKey *key; |
443 | int len, nkeys; |
444 | |
445 | /* |
446 | * Count up the number and length of keys we hold. |
447 | */ |
448 | len = nkeys = 0; |
449 | for (key = first234(rsakeys, &e); key; key = next234(&e)) { |
450 | nkeys++; |
451 | len += 4; /* length field */ |
452 | len += ssh1_bignum_length(key->exponent); |
453 | len += ssh1_bignum_length(key->modulus); |
454 | len += 4 + strlen(key->comment); |
455 | } |
456 | |
457 | /* |
458 | * Packet header is the obvious five bytes, plus four |
459 | * bytes for the key count. |
460 | */ |
461 | len += 5 + 4; |
d70f60ae |
462 | if (len > AGENT_MAX_MSGLEN) |
463 | goto failure; /* aaargh! too much stuff! */ |
464 | PUT_32BIT(ret, len-4); |
45cebe79 |
465 | ret[4] = SSH1_AGENT_RSA_IDENTITIES_ANSWER; |
d70f60ae |
466 | PUT_32BIT(ret+5, nkeys); |
467 | p = ret + 5 + 4; |
468 | for (key = first234(rsakeys, &e); key; key = next234(&e)) { |
ddecd643 |
469 | PUT_32BIT(p, bignum_bitcount(key->modulus)); |
d70f60ae |
470 | p += 4; |
471 | p += ssh1_write_bignum(p, key->exponent); |
472 | p += ssh1_write_bignum(p, key->modulus); |
473 | PUT_32BIT(p, strlen(key->comment)); |
474 | memcpy(p+4, key->comment, strlen(key->comment)); |
475 | p += 4 + strlen(key->comment); |
5c58ad2d |
476 | } |
477 | } |
478 | break; |
45cebe79 |
479 | case SSH2_AGENTC_REQUEST_IDENTITIES: |
5c58ad2d |
480 | /* |
45cebe79 |
481 | * Reply with SSH2_AGENT_IDENTITIES_ANSWER. |
482 | */ |
483 | { |
484 | enum234 e; |
485 | struct ssh2_userkey *key; |
486 | int len, nkeys; |
487 | unsigned char *blob; |
488 | int bloblen; |
489 | |
490 | /* |
491 | * Count up the number and length of keys we hold. |
492 | */ |
493 | len = nkeys = 0; |
494 | for (key = first234(ssh2keys, &e); key; key = next234(&e)) { |
495 | nkeys++; |
496 | len += 4; /* length field */ |
497 | blob = key->alg->public_blob(key->data, &bloblen); |
498 | len += bloblen; |
499 | sfree(blob); |
500 | len += 4 + strlen(key->comment); |
501 | } |
502 | |
503 | /* |
504 | * Packet header is the obvious five bytes, plus four |
505 | * bytes for the key count. |
506 | */ |
507 | len += 5 + 4; |
508 | if (len > AGENT_MAX_MSGLEN) |
509 | goto failure; /* aaargh! too much stuff! */ |
510 | PUT_32BIT(ret, len-4); |
511 | ret[4] = SSH2_AGENT_IDENTITIES_ANSWER; |
512 | PUT_32BIT(ret+5, nkeys); |
513 | p = ret + 5 + 4; |
514 | for (key = first234(ssh2keys, &e); key; key = next234(&e)) { |
515 | blob = key->alg->public_blob(key->data, &bloblen); |
516 | PUT_32BIT(p, bloblen); |
517 | p += 4; |
518 | memcpy(p, blob, bloblen); |
519 | p += bloblen; |
520 | sfree(blob); |
521 | PUT_32BIT(p, strlen(key->comment)); |
522 | memcpy(p+4, key->comment, strlen(key->comment)); |
523 | p += 4 + strlen(key->comment); |
524 | } |
525 | } |
526 | break; |
527 | case SSH1_AGENTC_RSA_CHALLENGE: |
528 | /* |
529 | * Reply with either SSH1_AGENT_RSA_RESPONSE or |
5c58ad2d |
530 | * SSH_AGENT_FAILURE, depending on whether we have that key |
531 | * or not. |
532 | */ |
533 | { |
534 | struct RSAKey reqkey, *key; |
535 | Bignum challenge, response; |
536 | unsigned char response_source[48], response_md5[16]; |
537 | struct MD5Context md5c; |
538 | int i, len; |
539 | |
540 | p += 4; |
541 | p += ssh1_read_bignum(p, &reqkey.exponent); |
542 | p += ssh1_read_bignum(p, &reqkey.modulus); |
543 | p += ssh1_read_bignum(p, &challenge); |
544 | memcpy(response_source+32, p, 16); p += 16; |
545 | if (GET_32BIT(p) != 1 || |
546 | (key = find234(rsakeys, &reqkey, NULL)) == NULL) { |
547 | freebn(reqkey.exponent); |
548 | freebn(reqkey.modulus); |
549 | freebn(challenge); |
550 | goto failure; |
551 | } |
552 | response = rsadecrypt(challenge, key); |
553 | for (i = 0; i < 32; i++) |
554 | response_source[i] = bignum_byte(response, 31-i); |
555 | |
556 | MD5Init(&md5c); |
557 | MD5Update(&md5c, response_source, 48); |
558 | MD5Final(response_md5, &md5c); |
559 | memset(response_source, 0, 48); /* burn the evidence */ |
560 | freebn(response); /* and that evidence */ |
561 | freebn(challenge); /* yes, and that evidence */ |
562 | freebn(reqkey.exponent); /* and free some memory ... */ |
563 | freebn(reqkey.modulus); /* ... while we're at it. */ |
564 | |
565 | /* |
566 | * Packet is the obvious five byte header, plus sixteen |
567 | * bytes of MD5. |
568 | */ |
569 | len = 5 + 16; |
d70f60ae |
570 | PUT_32BIT(ret, len-4); |
45cebe79 |
571 | ret[4] = SSH1_AGENT_RSA_RESPONSE; |
d70f60ae |
572 | memcpy(ret+5, response_md5, 16); |
5c58ad2d |
573 | } |
574 | break; |
45cebe79 |
575 | case SSH2_AGENTC_SIGN_REQUEST: |
576 | /* |
577 | * Reply with either SSH2_AGENT_RSA_RESPONSE or |
578 | * SSH_AGENT_FAILURE, depending on whether we have that key |
579 | * or not. |
580 | */ |
581 | { |
582 | struct ssh2_userkey *key; |
583 | struct blob b; |
584 | unsigned char *data, *signature; |
585 | int datalen, siglen, len; |
586 | |
587 | b.len = GET_32BIT(p); |
588 | p += 4; |
589 | b.blob = p; |
590 | p += b.len; |
591 | datalen = GET_32BIT(p); |
592 | p += 4; |
593 | data = p; |
594 | key = find234(ssh2keys, &b, cmpkeys_ssh2_asymm); |
595 | if (!key) |
596 | goto failure; |
597 | signature = key->alg->sign(key->data, data, datalen, &siglen); |
598 | len = 5+4+siglen; |
599 | PUT_32BIT(ret, len-4); |
600 | ret[4] = SSH2_AGENT_SIGN_RESPONSE; |
601 | PUT_32BIT(ret+5, siglen); |
602 | memcpy(ret+5+4, signature, siglen); |
603 | sfree(signature); |
604 | } |
605 | break; |
606 | case SSH1_AGENTC_ADD_RSA_IDENTITY: |
5c58ad2d |
607 | /* |
608 | * Add to the list and return SSH_AGENT_SUCCESS, or |
609 | * SSH_AGENT_FAILURE if the key was malformed. |
610 | */ |
3c0b3d06 |
611 | { |
612 | struct RSAKey *key; |
613 | char *comment; |
dcbde236 |
614 | key = smalloc(sizeof(struct RSAKey)); |
3c0b3d06 |
615 | memset(key, 0, sizeof(key)); |
616 | p += makekey(p, key, NULL, 1); |
617 | p += makeprivate(p, key); |
45cebe79 |
618 | p += ssh1_read_bignum(p, key->iqmp); /* p^-1 mod q */ |
619 | p += ssh1_read_bignum(p, key->p); /* p */ |
620 | p += ssh1_read_bignum(p, key->q); /* q */ |
dcbde236 |
621 | comment = smalloc(GET_32BIT(p)); |
3c0b3d06 |
622 | if (comment) { |
623 | memcpy(comment, p+4, GET_32BIT(p)); |
624 | key->comment = comment; |
625 | } |
626 | PUT_32BIT(ret, 1); |
627 | ret[4] = SSH_AGENT_FAILURE; |
628 | if (add234(rsakeys, key) == key) { |
629 | keylist_update(); |
630 | ret[4] = SSH_AGENT_SUCCESS; |
631 | } else { |
632 | freersakey(key); |
dcbde236 |
633 | sfree(key); |
3c0b3d06 |
634 | } |
635 | } |
5c58ad2d |
636 | break; |
45cebe79 |
637 | case SSH2_AGENTC_ADD_IDENTITY: |
638 | /* |
639 | * Add to the list and return SSH_AGENT_SUCCESS, or |
640 | * SSH_AGENT_FAILURE if the key was malformed. |
641 | */ |
642 | { |
643 | struct ssh2_userkey *key; |
644 | char *comment, *alg; |
645 | int alglen, commlen; |
646 | int bloblen; |
647 | |
648 | key = smalloc(sizeof(struct ssh2_userkey)); |
649 | |
650 | alglen = GET_32BIT(p); p += 4; |
651 | alg = p; p += alglen; |
652 | /* Add further algorithm names here. */ |
653 | if (alglen == 7 && !memcmp(alg, "ssh-rsa", 7)) |
654 | key->alg = &ssh_rsa; |
655 | else { |
656 | sfree(key); |
657 | goto failure; |
658 | } |
659 | |
660 | bloblen = GET_32BIT((unsigned char *)msg) - (p-(unsigned char *)msg-4); |
661 | key->data = key->alg->openssh_createkey(&p, &bloblen); |
662 | if (!key->data) { |
663 | sfree(key); |
664 | goto failure; |
665 | } |
666 | commlen = GET_32BIT(p); p += 4; |
667 | |
668 | comment = smalloc(commlen+1); |
669 | if (comment) { |
670 | memcpy(comment, p, commlen); |
671 | comment[commlen] = '\0'; |
672 | } |
673 | key->comment = comment; |
674 | |
675 | PUT_32BIT(ret, 1); |
676 | ret[4] = SSH_AGENT_FAILURE; |
677 | if (add234(ssh2keys, key) == key) { |
678 | keylist_update(); |
679 | ret[4] = SSH_AGENT_SUCCESS; |
680 | } else { |
681 | key->alg->freekey(key->data); |
682 | sfree(key->comment); |
683 | sfree(key); |
684 | } |
685 | } |
686 | break; |
687 | case SSH1_AGENTC_REMOVE_RSA_IDENTITY: |
5c58ad2d |
688 | /* |
689 | * Remove from the list and return SSH_AGENT_SUCCESS, or |
690 | * perhaps SSH_AGENT_FAILURE if it wasn't in the list to |
691 | * start with. |
692 | */ |
3c0b3d06 |
693 | { |
694 | struct RSAKey reqkey, *key; |
695 | |
696 | p += makekey(p, &reqkey, NULL, 0); |
697 | key = find234(rsakeys, &reqkey, NULL); |
698 | freebn(reqkey.exponent); |
699 | freebn(reqkey.modulus); |
700 | PUT_32BIT(ret, 1); |
701 | ret[4] = SSH_AGENT_FAILURE; |
702 | if (key) { |
703 | del234(rsakeys, key); |
704 | keylist_update(); |
d4de2d2a |
705 | freersakey(key); |
45cebe79 |
706 | sfree(key); |
3c0b3d06 |
707 | ret[4] = SSH_AGENT_SUCCESS; |
708 | } |
709 | } |
5c58ad2d |
710 | break; |
45cebe79 |
711 | case SSH2_AGENTC_REMOVE_IDENTITY: |
712 | /* |
713 | * Remove from the list and return SSH_AGENT_SUCCESS, or |
714 | * perhaps SSH_AGENT_FAILURE if it wasn't in the list to |
715 | * start with. |
716 | */ |
717 | { |
718 | struct ssh2_userkey *key; |
719 | struct blob b; |
720 | |
721 | b.len = GET_32BIT(p); |
722 | p += 4; |
723 | b.blob = p; |
724 | p += b.len; |
725 | key = find234(ssh2keys, &b, cmpkeys_ssh2_asymm); |
726 | if (!key) |
727 | goto failure; |
728 | |
729 | PUT_32BIT(ret, 1); |
730 | ret[4] = SSH_AGENT_FAILURE; |
731 | if (key) { |
732 | del234(ssh2keys, key); |
733 | keylist_update(); |
734 | key->alg->freekey(key->data); |
735 | sfree(key); |
736 | ret[4] = SSH_AGENT_SUCCESS; |
737 | } |
738 | } |
739 | break; |
740 | case SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES: |
741 | /* |
742 | * Remove all SSH1 keys. Always returns success. |
743 | */ |
744 | { |
745 | struct RSAKey *rkey; |
746 | enum234 e; |
747 | |
748 | while ( (rkey = first234(rsakeys, &e)) != NULL ) { |
749 | del234(rsakeys, rkey); |
750 | freersakey(rkey); |
751 | sfree(rkey); |
752 | } |
753 | keylist_update(); |
754 | |
755 | PUT_32BIT(ret, 1); |
756 | ret[4] = SSH_AGENT_SUCCESS; |
757 | } |
758 | break; |
759 | case SSH2_AGENTC_REMOVE_ALL_IDENTITIES: |
760 | /* |
761 | * Remove all SSH2 keys. Always returns success. |
762 | */ |
763 | { |
764 | struct ssh2_userkey *skey; |
765 | enum234 e; |
766 | |
767 | while ( (skey = first234(ssh2keys, &e)) != NULL ) { |
768 | del234(ssh2keys, skey); |
769 | skey->alg->freekey(skey->data); |
770 | sfree(skey); |
771 | } |
772 | keylist_update(); |
773 | |
774 | PUT_32BIT(ret, 1); |
775 | ret[4] = SSH_AGENT_SUCCESS; |
776 | } |
777 | break; |
5c58ad2d |
778 | default: |
779 | failure: |
780 | /* |
781 | * Unrecognised message. Return SSH_AGENT_FAILURE. |
782 | */ |
d70f60ae |
783 | PUT_32BIT(ret, 1); |
784 | ret[4] = SSH_AGENT_FAILURE; |
5c58ad2d |
785 | break; |
786 | } |
5c58ad2d |
787 | } |
788 | |
789 | /* |
790 | * Key comparison function for the 2-3-4 tree of RSA keys. |
791 | */ |
45cebe79 |
792 | static int cmpkeys_rsa(void *av, void *bv) { |
5c58ad2d |
793 | struct RSAKey *a = (struct RSAKey *)av; |
794 | struct RSAKey *b = (struct RSAKey *)bv; |
795 | Bignum am, bm; |
796 | int alen, blen; |
797 | |
798 | am = a->modulus; |
799 | bm = b->modulus; |
800 | /* |
801 | * Compare by length of moduli. |
802 | */ |
ddecd643 |
803 | alen = bignum_bitcount(am); |
804 | blen = bignum_bitcount(bm); |
5c58ad2d |
805 | if (alen > blen) return +1; else if (alen < blen) return -1; |
806 | /* |
807 | * Now compare by moduli themselves. |
808 | */ |
809 | alen = (alen + 7) / 8; /* byte count */ |
810 | while (alen-- > 0) { |
811 | int abyte, bbyte; |
812 | abyte = bignum_byte(am, alen); |
813 | bbyte = bignum_byte(bm, alen); |
814 | if (abyte > bbyte) return +1; else if (abyte < bbyte) return -1; |
815 | } |
816 | /* |
817 | * Give up. |
818 | */ |
819 | return 0; |
820 | } |
821 | |
45cebe79 |
822 | /* |
823 | * Key comparison function for the 2-3-4 tree of SSH2 keys. |
824 | */ |
825 | static int cmpkeys_ssh2(void *av, void *bv) { |
826 | struct ssh2_userkey *a = (struct ssh2_userkey *)av; |
827 | struct ssh2_userkey *b = (struct ssh2_userkey *)bv; |
828 | int i; |
829 | int alen, blen; |
830 | unsigned char *ablob, *bblob; |
831 | int c; |
832 | |
833 | /* |
834 | * Compare purely by public blob. |
835 | */ |
836 | ablob = a->alg->public_blob(a->data, &alen); |
837 | bblob = b->alg->public_blob(b->data, &blen); |
838 | |
839 | c = 0; |
840 | for (i = 0; i < alen && i < blen; i++) { |
841 | if (ablob[i] < bblob[i]) { |
842 | c = -1; break; |
843 | } else if (ablob[i] > bblob[i]) { |
844 | c = +1; break; |
845 | } |
846 | } |
847 | if (c == 0 && i < alen) c = +1; /* a is longer */ |
848 | if (c == 0 && i < blen) c = -1; /* a is longer */ |
849 | |
850 | sfree(ablob); |
851 | sfree(bblob); |
852 | |
853 | return c; |
854 | } |
855 | |
856 | /* |
857 | * Key comparison function for looking up a blob in the 2-3-4 tree |
858 | * of SSH2 keys. |
859 | */ |
860 | static int cmpkeys_ssh2_asymm(void *av, void *bv) { |
861 | struct blob *a = (struct blob *)av; |
862 | struct ssh2_userkey *b = (struct ssh2_userkey *)bv; |
863 | int i; |
864 | int alen, blen; |
865 | unsigned char *ablob, *bblob; |
866 | int c; |
867 | |
868 | /* |
869 | * Compare purely by public blob. |
870 | */ |
871 | ablob = a->blob; |
872 | alen = a->len; |
873 | bblob = b->alg->public_blob(b->data, &blen); |
874 | |
875 | c = 0; |
876 | for (i = 0; i < alen && i < blen; i++) { |
877 | if (ablob[i] < bblob[i]) { |
878 | c = -1; break; |
879 | } else if (ablob[i] > bblob[i]) { |
880 | c = +1; break; |
881 | } |
882 | } |
883 | if (c == 0 && i < alen) c = +1; /* a is longer */ |
884 | if (c == 0 && i < blen) c = -1; /* a is longer */ |
885 | |
886 | sfree(bblob); |
887 | |
888 | return c; |
889 | } |
890 | |
5c58ad2d |
891 | static void error(char *s) { |
892 | MessageBox(hwnd, s, APPNAME, MB_OK | MB_ICONERROR); |
893 | } |
894 | |
895 | /* |
ab162329 |
896 | * Prompt for a key file to add, and add it. |
897 | */ |
898 | static void prompt_add_keyfile(void) { |
899 | OPENFILENAME of; |
900 | char filename[FILENAME_MAX]; |
901 | memset(&of, 0, sizeof(of)); |
902 | #ifdef OPENFILENAME_SIZE_VERSION_400 |
903 | of.lStructSize = OPENFILENAME_SIZE_VERSION_400; |
904 | #else |
905 | of.lStructSize = sizeof(of); |
906 | #endif |
907 | of.hwndOwner = hwnd; |
908 | of.lpstrFilter = "All Files\0*\0\0\0"; |
909 | of.lpstrCustomFilter = NULL; |
910 | of.nFilterIndex = 1; |
911 | of.lpstrFile = filename; *filename = '\0'; |
912 | of.nMaxFile = sizeof(filename); |
913 | of.lpstrFileTitle = NULL; |
914 | of.lpstrInitialDir = NULL; |
915 | of.lpstrTitle = "Select Private Key File"; |
916 | of.Flags = 0; |
917 | if (GetOpenFileName(&of)) { |
918 | add_keyfile(filename); |
919 | keylist_update(); |
920 | } |
921 | } |
922 | |
923 | /* |
5c58ad2d |
924 | * Dialog-box function for the key list box. |
925 | */ |
926 | static int CALLBACK KeyListProc(HWND hwnd, UINT msg, |
927 | WPARAM wParam, LPARAM lParam) { |
928 | enum234 e; |
45cebe79 |
929 | struct RSAKey *rkey; |
930 | struct ssh2_userkey *skey; |
5c58ad2d |
931 | |
932 | switch (msg) { |
933 | case WM_INITDIALOG: |
45cebe79 |
934 | /* |
935 | * Centre the window. |
936 | */ |
937 | { /* centre the window */ |
938 | RECT rs, rd; |
939 | HWND hw; |
940 | |
941 | hw = GetDesktopWindow(); |
942 | if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd)) |
943 | MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2, |
944 | (rs.bottom + rs.top + rd.top - rd.bottom)/2, |
945 | rd.right-rd.left, rd.bottom-rd.top, TRUE); |
946 | } |
947 | |
1c2a93c4 |
948 | keylist = hwnd; |
949 | { |
45cebe79 |
950 | static int tabs[] = {35, 60, 210}; |
951 | SendDlgItemMessage (hwnd, 100, LB_SETTABSTOPS, |
952 | sizeof(tabs)/sizeof(*tabs), (LPARAM) tabs); |
1c2a93c4 |
953 | } |
954 | keylist_update(); |
5c58ad2d |
955 | return 0; |
956 | case WM_COMMAND: |
957 | switch (LOWORD(wParam)) { |
958 | case IDOK: |
959 | case IDCANCEL: |
960 | keylist = NULL; |
961 | DestroyWindow(hwnd); |
962 | return 0; |
963 | case 101: /* add key */ |
964 | if (HIWORD(wParam) == BN_CLICKED || |
965 | HIWORD(wParam) == BN_DOUBLECLICKED) { |
ab162329 |
966 | prompt_add_keyfile(); |
5c58ad2d |
967 | } |
968 | return 0; |
969 | case 102: /* remove key */ |
970 | if (HIWORD(wParam) == BN_CLICKED || |
971 | HIWORD(wParam) == BN_DOUBLECLICKED) { |
972 | int n = SendDlgItemMessage (hwnd, 100, LB_GETCURSEL, 0, 0); |
f70a606e |
973 | if (n == LB_ERR) { |
5c58ad2d |
974 | MessageBeep(0); |
975 | break; |
976 | } |
45cebe79 |
977 | for (rkey = first234(rsakeys, &e); rkey; rkey = next234(&e)) |
5c58ad2d |
978 | if (n-- == 0) |
979 | break; |
45cebe79 |
980 | if (rkey) { |
981 | del234(rsakeys, rkey); |
982 | freersakey(rkey); |
983 | sfree(rkey); |
984 | } else { |
985 | for (skey = first234(ssh2keys, &e); skey; skey = next234(&e)) |
986 | if (n-- == 0) |
987 | break; |
988 | if (skey) { |
989 | del234(ssh2keys, skey); |
990 | skey->alg->freekey(skey->data); |
991 | sfree(skey); |
992 | } |
993 | } |
1c2a93c4 |
994 | keylist_update(); |
5c58ad2d |
995 | } |
996 | return 0; |
997 | } |
998 | return 0; |
999 | case WM_CLOSE: |
1000 | keylist = NULL; |
1001 | DestroyWindow(hwnd); |
1002 | return 0; |
1003 | } |
1004 | return 0; |
1005 | } |
1006 | |
1007 | static LRESULT CALLBACK WndProc (HWND hwnd, UINT message, |
1008 | WPARAM wParam, LPARAM lParam) { |
1009 | int ret; |
1010 | static int menuinprogress; |
1011 | |
1012 | switch (message) { |
1013 | case WM_SYSTRAY: |
1014 | if (lParam == WM_RBUTTONUP) { |
1015 | POINT cursorpos; |
1016 | GetCursorPos(&cursorpos); |
1017 | PostMessage(hwnd, WM_SYSTRAY2, cursorpos.x, cursorpos.y); |
905beba5 |
1018 | } else if (lParam == WM_LBUTTONDBLCLK) { |
1019 | /* Equivalent to IDM_VIEWKEYS. */ |
1020 | PostMessage(hwnd, WM_COMMAND, IDM_VIEWKEYS, 0); |
5c58ad2d |
1021 | } |
1022 | break; |
1023 | case WM_SYSTRAY2: |
1024 | if (!menuinprogress) { |
1025 | menuinprogress = 1; |
1026 | SetForegroundWindow(hwnd); |
1027 | ret = TrackPopupMenu(systray_menu, |
1028 | TPM_RIGHTALIGN | TPM_BOTTOMALIGN | |
1029 | TPM_RIGHTBUTTON, |
1030 | wParam, lParam, 0, hwnd, NULL); |
1031 | menuinprogress = 0; |
1032 | } |
1033 | break; |
1034 | case WM_COMMAND: |
1035 | case WM_SYSCOMMAND: |
1036 | switch (wParam & ~0xF) { /* low 4 bits reserved to Windows */ |
1037 | case IDM_CLOSE: |
1038 | SendMessage(hwnd, WM_CLOSE, 0, 0); |
1039 | break; |
1040 | case IDM_VIEWKEYS: |
1041 | if (!keylist) { |
1042 | keylist = CreateDialog (instance, MAKEINTRESOURCE(211), |
1043 | NULL, KeyListProc); |
1044 | ShowWindow (keylist, SW_SHOWNORMAL); |
905beba5 |
1045 | /* |
1046 | * Sometimes the window comes up minimised / hidden |
1047 | * for no obvious reason. Prevent this. |
1048 | */ |
1049 | SetForegroundWindow(keylist); |
1050 | SetWindowPos (keylist, HWND_TOP, 0, 0, 0, 0, |
1051 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
5c58ad2d |
1052 | } |
1053 | break; |
ab162329 |
1054 | case IDM_ADDKEY: |
1055 | prompt_add_keyfile(); |
1056 | break; |
5af3a3b6 |
1057 | case IDM_ABOUT: |
1058 | if (!aboutbox) { |
1059 | aboutbox = CreateDialog (instance, MAKEINTRESOURCE(213), |
1060 | NULL, AboutProc); |
1061 | ShowWindow (aboutbox, SW_SHOWNORMAL); |
1062 | /* |
1063 | * Sometimes the window comes up minimised / hidden |
1064 | * for no obvious reason. Prevent this. |
1065 | */ |
1066 | SetForegroundWindow(aboutbox); |
1067 | SetWindowPos (aboutbox, HWND_TOP, 0, 0, 0, 0, |
1068 | SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); |
1069 | } |
1070 | break; |
5c58ad2d |
1071 | } |
1072 | break; |
1073 | case WM_DESTROY: |
1074 | PostQuitMessage (0); |
1075 | return 0; |
1076 | case WM_COPYDATA: |
1077 | { |
1078 | COPYDATASTRUCT *cds; |
d70f60ae |
1079 | char *mapname; |
1080 | void *p; |
1081 | HANDLE filemap, proc; |
1082 | PSID mapowner, procowner; |
1083 | PSECURITY_DESCRIPTOR psd1 = NULL, psd2 = NULL; |
1084 | int ret = 0; |
5c58ad2d |
1085 | |
1086 | cds = (COPYDATASTRUCT *)lParam; |
d70f60ae |
1087 | if (cds->dwData != AGENT_COPYDATA_ID) |
1088 | return 0; /* not our message, mate */ |
1089 | mapname = (char *)cds->lpData; |
1090 | if (mapname[cds->cbData - 1] != '\0') |
1091 | return 0; /* failure to be ASCIZ! */ |
1092 | #ifdef DEBUG_IPC |
1093 | debug(("mapname is :%s:\r\n", mapname)); |
1094 | #endif |
1095 | filemap = OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, mapname); |
1096 | #ifdef DEBUG_IPC |
1097 | debug(("filemap is %p\r\n", filemap)); |
1098 | #endif |
1099 | if (filemap != NULL && filemap != INVALID_HANDLE_VALUE) { |
1100 | int rc; |
123bc6ea |
1101 | #ifndef NO_SECURITY |
016ef8ab |
1102 | if (has_security) { |
1103 | if ((proc = OpenProcess(MAXIMUM_ALLOWED, FALSE, |
1104 | GetCurrentProcessId())) == NULL) { |
d70f60ae |
1105 | #ifdef DEBUG_IPC |
016ef8ab |
1106 | debug(("couldn't get handle for process\r\n")); |
d70f60ae |
1107 | #endif |
016ef8ab |
1108 | return 0; |
1109 | } |
1110 | if (getsecurityinfo(proc, SE_KERNEL_OBJECT, |
1111 | OWNER_SECURITY_INFORMATION, |
1112 | &procowner, NULL, NULL, NULL, |
1113 | &psd2) != ERROR_SUCCESS) { |
d70f60ae |
1114 | #ifdef DEBUG_IPC |
016ef8ab |
1115 | debug(("couldn't get owner info for process\r\n")); |
d70f60ae |
1116 | #endif |
016ef8ab |
1117 | CloseHandle(proc); |
1118 | return 0; /* unable to get security info */ |
1119 | } |
d70f60ae |
1120 | CloseHandle(proc); |
016ef8ab |
1121 | if ((rc = getsecurityinfo(filemap, SE_KERNEL_OBJECT, |
1122 | OWNER_SECURITY_INFORMATION, |
1123 | &mapowner, NULL, NULL, NULL, |
1124 | &psd1) != ERROR_SUCCESS)) { |
d70f60ae |
1125 | #ifdef DEBUG_IPC |
016ef8ab |
1126 | debug(("couldn't get owner info for filemap: %d\r\n", rc)); |
d70f60ae |
1127 | #endif |
016ef8ab |
1128 | return 0; |
1129 | } |
1130 | #ifdef DEBUG_IPC |
1131 | debug(("got security stuff\r\n")); |
1132 | #endif |
1133 | if (!EqualSid(mapowner, procowner)) |
1134 | return 0; /* security ID mismatch! */ |
d70f60ae |
1135 | #ifdef DEBUG_IPC |
016ef8ab |
1136 | debug(("security stuff matched\r\n")); |
d70f60ae |
1137 | #endif |
016ef8ab |
1138 | LocalFree(psd1); |
1139 | LocalFree(psd2); |
1140 | } else { |
d70f60ae |
1141 | #ifdef DEBUG_IPC |
016ef8ab |
1142 | debug(("security APIs not present\r\n")); |
d70f60ae |
1143 | #endif |
016ef8ab |
1144 | } |
123bc6ea |
1145 | #endif |
d70f60ae |
1146 | p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0); |
1147 | #ifdef DEBUG_IPC |
1148 | debug(("p is %p\r\n", p)); |
1149 | {int i; for(i=0;i<5;i++)debug(("p[%d]=%02x\r\n", i, ((unsigned char *)p)[i]));} |
1150 | #endif |
1151 | answer_msg(p); |
1152 | ret = 1; |
1153 | UnmapViewOfFile(p); |
1154 | } |
1155 | CloseHandle(filemap); |
1156 | return ret; |
5c58ad2d |
1157 | } |
5c58ad2d |
1158 | } |
1159 | |
1160 | return DefWindowProc (hwnd, message, wParam, lParam); |
1161 | } |
1162 | |
ddecd643 |
1163 | /* |
1164 | * Fork and Exec the command in cmdline. [DBW] |
1165 | */ |
1166 | void spawn_cmd(char *cmdline, int show) { |
1167 | if (ShellExecute(NULL, _T("open"), cmdline, |
1168 | NULL, NULL, show) <= (HINSTANCE) 32) { |
1169 | TCHAR sMsg[140]; |
1170 | sprintf(sMsg, _T("Failed to run \"%.100s\", Error: %d"), cmdline, |
1171 | GetLastError()); |
1172 | MessageBox(NULL, sMsg, APPNAME, MB_OK | MB_ICONEXCLAMATION); |
1173 | } |
1174 | } |
1175 | |
5c58ad2d |
1176 | int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) { |
1177 | WNDCLASS wndclass; |
5c58ad2d |
1178 | MSG msg; |
016ef8ab |
1179 | OSVERSIONINFO osi; |
1180 | HMODULE advapi; |
ddecd643 |
1181 | char *command = NULL; |
1182 | int added_keys = 0; |
016ef8ab |
1183 | |
1184 | /* |
1185 | * Determine whether we're an NT system (should have security |
1186 | * APIs) or a non-NT system (don't do security). |
1187 | */ |
1188 | memset(&osi, 0, sizeof(OSVERSIONINFO)); |
1189 | osi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); |
1190 | if (GetVersionEx(&osi) && osi.dwPlatformId==VER_PLATFORM_WIN32_NT) { |
1191 | has_security = TRUE; |
1192 | } else |
1193 | has_security = FALSE; |
1194 | |
1195 | if (has_security) { |
123bc6ea |
1196 | #ifndef NO_SECURITY |
016ef8ab |
1197 | /* |
ddecd643 |
1198 | * Attempt to get the security API we need. |
016ef8ab |
1199 | */ |
1200 | advapi = LoadLibrary("ADVAPI32.DLL"); |
1201 | getsecurityinfo = (gsi_fn_t)GetProcAddress(advapi, "GetSecurityInfo"); |
1202 | if (!getsecurityinfo) { |
1203 | MessageBox(NULL, |
1204 | "Unable to access security APIs. Pageant will\n" |
1205 | "not run, in case it causes a security breach.", |
1206 | "Pageant Fatal Error", MB_ICONERROR | MB_OK); |
1207 | return 1; |
1208 | } |
123bc6ea |
1209 | #else |
1210 | MessageBox(NULL, |
1211 | "This program has been compiled for Win9X and will\n" |
1212 | "not run on NT, in case it causes a security breach.", |
1213 | "Pageant Fatal Error", MB_ICONERROR | MB_OK); |
1214 | return 1; |
1215 | #endif |
016ef8ab |
1216 | } else |
1217 | advapi = NULL; |
5c58ad2d |
1218 | |
1219 | instance = inst; |
1220 | |
ddecd643 |
1221 | /* |
1222 | * Find out if Pageant is already running. |
1223 | */ |
1224 | already_running = FALSE; |
1225 | if (FindWindow("Pageant", "Pageant")) |
1226 | already_running = TRUE; |
1227 | else { |
1228 | |
1229 | if (!prev) { |
1230 | wndclass.style = 0; |
1231 | wndclass.lpfnWndProc = WndProc; |
1232 | wndclass.cbClsExtra = 0; |
1233 | wndclass.cbWndExtra = 0; |
1234 | wndclass.hInstance = inst; |
1235 | wndclass.hIcon = LoadIcon (inst, |
1236 | MAKEINTRESOURCE(IDI_MAINICON)); |
1237 | wndclass.hCursor = LoadCursor (NULL, IDC_IBEAM); |
1238 | wndclass.hbrBackground = GetStockObject (BLACK_BRUSH); |
1239 | wndclass.lpszMenuName = NULL; |
1240 | wndclass.lpszClassName = APPNAME; |
1241 | |
1242 | RegisterClass (&wndclass); |
1243 | } |
5c58ad2d |
1244 | |
ddecd643 |
1245 | hwnd = keylist = NULL; |
5c58ad2d |
1246 | |
ddecd643 |
1247 | hwnd = CreateWindow (APPNAME, APPNAME, |
1248 | WS_OVERLAPPEDWINDOW | WS_VSCROLL, |
1249 | CW_USEDEFAULT, CW_USEDEFAULT, |
1250 | 100, 100, NULL, NULL, inst, NULL); |
5c58ad2d |
1251 | |
ddecd643 |
1252 | /* Set up a system tray icon */ |
1253 | { |
1254 | BOOL res; |
1255 | NOTIFYICONDATA tnid; |
1256 | HICON hicon; |
5c58ad2d |
1257 | |
1258 | #ifdef NIM_SETVERSION |
ddecd643 |
1259 | tnid.uVersion = 0; |
1260 | res = Shell_NotifyIcon(NIM_SETVERSION, &tnid); |
5c58ad2d |
1261 | #endif |
1262 | |
ddecd643 |
1263 | tnid.cbSize = sizeof(NOTIFYICONDATA); |
1264 | tnid.hWnd = hwnd; |
1265 | tnid.uID = 1; /* unique within this systray use */ |
1266 | tnid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP; |
1267 | tnid.uCallbackMessage = WM_SYSTRAY; |
1268 | tnid.hIcon = hicon = LoadIcon (instance, MAKEINTRESOURCE(201)); |
1269 | strcpy(tnid.szTip, "Pageant (PuTTY authentication agent)"); |
1270 | |
1271 | res = Shell_NotifyIcon(NIM_ADD, &tnid); |
1272 | |
1273 | if (hicon) |
1274 | DestroyIcon(hicon); |
1275 | |
1276 | systray_menu = CreatePopupMenu(); |
1277 | /* accelerators used: vkxa */ |
1278 | AppendMenu (systray_menu, MF_ENABLED, IDM_VIEWKEYS, "&View Keys"); |
1279 | AppendMenu (systray_menu, MF_ENABLED, IDM_ADDKEY, "Add &Key"); |
1280 | AppendMenu (systray_menu, MF_ENABLED, IDM_ABOUT, "&About"); |
1281 | AppendMenu (systray_menu, MF_ENABLED, IDM_CLOSE, "E&xit"); |
1282 | } |
5c58ad2d |
1283 | |
ddecd643 |
1284 | ShowWindow (hwnd, SW_HIDE); |
5c58ad2d |
1285 | |
ddecd643 |
1286 | /* |
1287 | * Initialise storage for RSA keys. |
1288 | */ |
1289 | rsakeys = newtree234(cmpkeys_rsa); |
1290 | ssh2keys = newtree234(cmpkeys_ssh2); |
1291 | |
1292 | } |
dacbd0e8 |
1293 | |
1294 | /* |
45cebe79 |
1295 | * Process the command line and add keys as listed on it. |
ddecd643 |
1296 | * If we already determined that we need to spawn a program from above we |
1297 | * need to ignore the first two arguments. [DBW] |
5c58ad2d |
1298 | */ |
1299 | { |
8c42f28c |
1300 | char *p; |
1301 | int inquotes = 0; |
ddecd643 |
1302 | int ignorearg = 0; |
8c42f28c |
1303 | p = cmdline; |
dacbd0e8 |
1304 | while (*p) { |
1305 | while (*p && isspace(*p)) p++; |
1306 | if (*p && !isspace(*p)) { |
8c42f28c |
1307 | char *q = p, *pp = p; |
1308 | while (*p && (inquotes || !isspace(*p))) |
1309 | { |
1310 | if (*p == '"') { |
1311 | inquotes = !inquotes; |
1312 | p++; |
1313 | continue; |
1314 | } |
1315 | *pp++ = *p++; |
1316 | } |
1317 | if (*pp) { |
1318 | if (*p) p++; |
1319 | *pp++ = '\0'; |
1320 | } |
ddecd643 |
1321 | if (!strcmp(q, "-c")) { |
1322 | /* |
1323 | * If we see `-c', then the rest of the |
1324 | * command line should be treated as a |
1325 | * command to be spawned. |
1326 | */ |
1327 | while (*p && isspace(*p)) p++; |
1328 | command = p; |
1329 | break; |
1330 | } else { |
1331 | add_keyfile(q); |
1332 | added_keys = TRUE; |
1333 | } |
dacbd0e8 |
1334 | } |
1335 | } |
5c58ad2d |
1336 | } |
1337 | |
ddecd643 |
1338 | if (command) spawn_cmd (command, show); |
1339 | |
1340 | /* |
1341 | * If Pageant was already running, we leave now. If we haven't |
1342 | * even taken any auxiliary action (spawned a command or added |
1343 | * keys), complain. |
1344 | */ |
1345 | if (already_running) { |
1346 | if (!command && !added_keys) { |
1347 | MessageBox(NULL, "Pageant is already running", "Pageant Error", |
1348 | MB_ICONERROR | MB_OK); |
1349 | } |
1350 | if (advapi) FreeLibrary(advapi); |
1351 | return 0; |
1352 | } |
1353 | |
5c58ad2d |
1354 | /* |
dacbd0e8 |
1355 | * Main message loop. |
5c58ad2d |
1356 | */ |
5c58ad2d |
1357 | while (GetMessage(&msg, NULL, 0, 0) == 1) { |
1358 | TranslateMessage(&msg); |
1359 | DispatchMessage(&msg); |
1360 | } |
1361 | |
1362 | /* Clean up the system tray icon */ |
1363 | { |
1364 | NOTIFYICONDATA tnid; |
1365 | |
1366 | tnid.cbSize = sizeof(NOTIFYICONDATA); |
1367 | tnid.hWnd = hwnd; |
1368 | tnid.uID = 1; |
1369 | |
1370 | Shell_NotifyIcon(NIM_DELETE, &tnid); |
1371 | |
1372 | DestroyMenu(systray_menu); |
1373 | } |
1374 | |
016ef8ab |
1375 | if (advapi) FreeLibrary(advapi); |
5c58ad2d |
1376 | exit(msg.wParam); |
1377 | } |