2 * Pageant: the PuTTY Authentication Agent.
17 void dprintf(char *fmt, ...);
18 #define debug(x) (dprintf x)
27 #define IDI_MAINICON 200
28 #define IDI_TRAYICON 201
30 #define WM_XUSER (WM_USER + 0x2000)
31 #define WM_SYSTRAY (WM_XUSER + 6)
32 #define WM_SYSTRAY2 (WM_XUSER + 7)
34 #define AGENT_COPYDATA_ID 0x804e50ba /* random goop */
37 * FIXME: maybe some day we can sort this out ...
39 #define AGENT_MAX_MSGLEN 8192
41 #define IDM_CLOSE 0x0010
42 #define IDM_VIEWKEYS 0x0020
43 #define IDM_ADDKEY 0x0030
44 #define IDM_ABOUT 0x0040
46 #define APPNAME "Pageant"
50 static HINSTANCE instance;
54 static HMENU systray_menu;
55 static int already_running;
57 static tree234 *rsakeys, *ssh2keys;
59 static int has_security;
61 typedef DWORD (WINAPI *gsi_fn_t)
62 (HANDLE, SE_OBJECT_TYPE, SECURITY_INFORMATION,
63 PSID *, PSID *, PACL *, PACL *,
64 PSECURITY_DESCRIPTOR *);
65 static gsi_fn_t getsecurityinfo;
69 * We need this to link with the RSA code, because rsaencrypt()
70 * pads its data with random bytes. Since we only use rsadecrypt()
71 * and the signing functions, which are deterministic, this should
74 * If it _is_ called, there is a _serious_ problem, because it
75 * won't generate true random numbers. So we must scream, panic,
76 * and exit immediately if that should happen.
78 int random_byte(void) {
79 MessageBox(hwnd, "Internal Error", APPNAME, MB_OK | MB_ICONERROR);
84 * Blob structure for passing to the asymmetric SSH2 key compare
85 * function, prototyped here.
91 static int cmpkeys_ssh2_asymm(void *av, void *bv);
94 * This function is needed to link with the DES code. We need not
95 * have it do anything at all.
97 void logevent(char *msg) {
100 #define GET_32BIT(cp) \
101 (((unsigned long)(unsigned char)(cp)[0] << 24) | \
102 ((unsigned long)(unsigned char)(cp)[1] << 16) | \
103 ((unsigned long)(unsigned char)(cp)[2] << 8) | \
104 ((unsigned long)(unsigned char)(cp)[3]))
106 #define PUT_32BIT(cp, value) { \
107 (cp)[0] = (unsigned char)((value) >> 24); \
108 (cp)[1] = (unsigned char)((value) >> 16); \
109 (cp)[2] = (unsigned char)((value) >> 8); \
110 (cp)[3] = (unsigned char)(value); }
112 #define PASSPHRASE_MAXLEN 512
114 struct PassphraseProcStruct {
120 * Dialog-box function for the Licence box.
122 static int CALLBACK LicenceProc (HWND hwnd, UINT msg,
123 WPARAM wParam, LPARAM lParam) {
128 switch (LOWORD(wParam)) {
142 * Dialog-box function for the About box.
144 static int CALLBACK AboutProc (HWND hwnd, UINT msg,
145 WPARAM wParam, LPARAM lParam) {
148 SetDlgItemText (hwnd, 100, ver);
151 switch (LOWORD(wParam)) {
154 DestroyWindow (hwnd);
157 EnableWindow(hwnd, 0);
158 DialogBox (instance, MAKEINTRESOURCE(214), NULL, LicenceProc);
159 EnableWindow(hwnd, 1);
160 SetActiveWindow(hwnd);
166 DestroyWindow (hwnd);
173 * Dialog-box function for the passphrase box.
175 static int CALLBACK PassphraseProc(HWND hwnd, UINT msg,
176 WPARAM wParam, LPARAM lParam) {
177 static char *passphrase;
178 struct PassphraseProcStruct *p;
185 { /* centre the window */
189 hw = GetDesktopWindow();
190 if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd))
191 MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2,
192 (rs.bottom + rs.top + rd.top - rd.bottom)/2,
193 rd.right-rd.left, rd.bottom-rd.top, TRUE);
196 SetForegroundWindow(hwnd);
197 SetWindowPos (hwnd, HWND_TOP, 0, 0, 0, 0,
198 SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
199 p = (struct PassphraseProcStruct *)lParam;
200 passphrase = p->passphrase;
202 SetDlgItemText(hwnd, 101, p->comment);
206 switch (LOWORD(wParam)) {
216 case 102: /* edit box */
217 if (HIWORD(wParam) == EN_CHANGE) {
218 GetDlgItemText (hwnd, 102, passphrase, PASSPHRASE_MAXLEN-1);
219 passphrase[PASSPHRASE_MAXLEN-1] = '\0';
232 * Update the visible key list.
234 static void keylist_update(void) {
236 struct ssh2_userkey *skey;
240 SendDlgItemMessage(keylist, 100, LB_RESETCONTENT, 0, 0);
241 for (rkey = first234(rsakeys, &e); rkey; rkey = next234(&e)) {
242 char listentry[512], *p;
244 * Replace two spaces in the fingerprint with tabs, for
245 * nice alignment in the box.
247 strcpy(listentry, "ssh1\t");
248 p = listentry+strlen(listentry);
249 rsa_fingerprint(p, sizeof(listentry)-(p-listentry), rkey);
250 p = strchr(listentry, ' '); if (p) *p = '\t';
251 p = strchr(listentry, ' '); if (p) *p = '\t';
252 SendDlgItemMessage (keylist, 100, LB_ADDSTRING,
253 0, (LPARAM)listentry);
255 for (skey = first234(ssh2keys, &e); skey; skey = next234(&e)) {
256 char listentry[512], *p;
259 * Replace two spaces in the fingerprint with tabs, for
260 * nice alignment in the box.
262 p = skey->alg->fingerprint(skey->data);
263 strncpy(listentry, p, sizeof(listentry));
264 p = strchr(listentry, ' '); if (p) *p = '\t';
265 p = strchr(listentry, ' '); if (p) *p = '\t';
266 len = strlen(listentry);
267 if (len < sizeof(listentry)-2) {
268 listentry[len] = '\t';
269 strncpy(listentry+len+1, skey->comment, sizeof(listentry)-len-1);
271 SendDlgItemMessage (keylist, 100, LB_ADDSTRING,
272 0, (LPARAM)listentry);
274 SendDlgItemMessage (keylist, 100, LB_SETCURSEL, (WPARAM) -1, 0);
279 * This function loads a key from a file and adds it.
281 static void add_keyfile(char *filename) {
282 char passphrase[PASSPHRASE_MAXLEN];
284 struct ssh2_userkey *skey;
289 struct PassphraseProcStruct pps;
292 ver = keyfile_version(filename);
294 MessageBox(NULL, "Couldn't load private key.", APPNAME,
295 MB_OK | MB_ICONERROR);
299 debug(("ooh %d\n", __LINE__));
301 needs_pass = rsakey_encrypted(filename, &comment);
303 needs_pass = ssh2_userkey_encrypted(filename, &comment);
304 debug(("ooh %d\n", __LINE__));
306 debug(("ooh %d\n", __LINE__));
308 rkey = smalloc(sizeof(*rkey));
309 debug(("ooh %d\n", __LINE__));
310 pps.passphrase = passphrase;
311 pps.comment = comment;
312 debug(("ooh %d\n", __LINE__));
314 debug(("ooh %d\n", __LINE__));
317 dlgret = DialogBoxParam(instance, MAKEINTRESOURCE(210),
318 NULL, PassphraseProc,
321 if (comment) sfree(comment);
324 return; /* operation cancelled */
328 debug(("ooh %d\n", __LINE__));
330 ret = loadrsakey(filename, rkey, passphrase);
332 debug(("ooh %d\n", __LINE__));
333 skey = ssh2_load_userkey(filename, passphrase);
334 debug(("ooh %d\n", __LINE__));
335 if (skey == SSH2_WRONG_PASSPHRASE)
344 debug(("ooh %d\n", __LINE__));
345 if (comment) sfree(comment);
346 debug(("ooh %d\n", __LINE__));
348 MessageBox(NULL, "Couldn't load private key.", APPNAME,
349 MB_OK | MB_ICONERROR);
354 debug(("ooh %d\n", __LINE__));
356 if (already_running) {
357 unsigned char *request, *response;
358 int reqlen, clen, resplen;
360 debug(("ooh %d\n", __LINE__));
361 clen = strlen(rkey->comment);
362 debug(("ooh %d\n", __LINE__));
364 reqlen = 4 + 1 + /* length, message type */
366 ssh1_bignum_length(rkey->modulus) +
367 ssh1_bignum_length(rkey->exponent) +
368 ssh1_bignum_length(rkey->private_exponent) +
369 ssh1_bignum_length(rkey->iqmp) +
370 ssh1_bignum_length(rkey->p) +
371 ssh1_bignum_length(rkey->q) +
372 4 + clen /* comment */
374 debug(("ooh %d %d\n", __LINE__, reqlen));
376 request = smalloc(reqlen);
377 debug(("ooh %d\n", __LINE__));
379 debug(("ooh %d\n", __LINE__));
380 request[4] = SSH1_AGENTC_ADD_RSA_IDENTITY;
381 debug(("ooh %d\n", __LINE__));
383 PUT_32BIT(request+reqlen, bignum_bitcount(rkey->modulus));
385 reqlen += ssh1_write_bignum(request+reqlen, rkey->modulus);
386 reqlen += ssh1_write_bignum(request+reqlen, rkey->exponent);
387 reqlen += ssh1_write_bignum(request+reqlen, rkey->private_exponent);
388 reqlen += ssh1_write_bignum(request+reqlen, rkey->iqmp);
389 reqlen += ssh1_write_bignum(request+reqlen, rkey->p);
390 reqlen += ssh1_write_bignum(request+reqlen, rkey->q);
391 PUT_32BIT(request+reqlen, clen);
392 memcpy(request+reqlen+4, rkey->comment, clen);
394 PUT_32BIT(request, reqlen-4);
396 debug(("ooh %d\n", __LINE__));
397 agent_query(request, reqlen, &response, &resplen);
398 debug(("ooh %d\n", __LINE__));
399 if (resplen < 5 || response[4] != SSH_AGENT_SUCCESS)
400 MessageBox(NULL, "The already running Pageant "
401 "refused to add the key.", APPNAME,
402 MB_OK | MB_ICONERROR);
404 if (add234(rsakeys, rkey) != rkey)
405 sfree(rkey); /* already present, don't waste RAM */
408 if (already_running) {
409 unsigned char *request, *response;
410 int reqlen, alglen, clen, keybloblen, resplen;
411 debug(("ooh %d\n", __LINE__));
412 alglen = strlen(skey->alg->name);
413 debug(("ooh %d\n", __LINE__));
414 clen = strlen(skey->comment);
415 debug(("ooh %d\n", __LINE__));
417 debug(("ooh %d\n", __LINE__));
418 keybloblen = skey->alg->openssh_fmtkey(skey->data, NULL, 0);
419 debug(("ooh %d\n", __LINE__));
421 debug(("ooh %d\n", __LINE__));
422 reqlen = 4 + 1 + /* length, message type */
423 4 + alglen + /* algorithm name */
424 keybloblen + /* key data */
425 4 + clen /* comment */
427 debug(("ooh %d\n", __LINE__));
429 debug(("ooh %d\n", __LINE__));
430 request = smalloc(reqlen);
431 debug(("ooh %d\n", __LINE__));
433 request[4] = SSH2_AGENTC_ADD_IDENTITY;
434 debug(("ooh %d\n", __LINE__));
436 debug(("ooh %d\n", __LINE__));
437 PUT_32BIT(request+reqlen, alglen);
438 debug(("ooh %d\n", __LINE__));
440 debug(("ooh %d\n", __LINE__));
441 memcpy(request+reqlen, skey->alg->name, alglen);
442 debug(("ooh %d\n", __LINE__));
444 debug(("ooh %d\n", __LINE__));
445 reqlen += skey->alg->openssh_fmtkey(skey->data,
446 request+reqlen, keybloblen);
447 debug(("ooh %d\n", __LINE__));
448 PUT_32BIT(request+reqlen, clen);
449 debug(("ooh %d\n", __LINE__));
450 memcpy(request+reqlen+4, skey->comment, clen);
451 debug(("ooh %d\n", __LINE__));
452 PUT_32BIT(request, reqlen-4);
453 debug(("ooh %d\n", __LINE__));
456 agent_query(request, reqlen, &response, &resplen);
457 debug(("ooh %d\n", __LINE__));
458 if (resplen < 5 || response[4] != SSH_AGENT_SUCCESS)
459 MessageBox(NULL, "The already running Pageant"
460 "refused to add the key.", APPNAME,
461 MB_OK | MB_ICONERROR);
462 debug(("ooh %d\n", __LINE__));
464 if (add234(ssh2keys, skey) != skey) {
465 skey->alg->freekey(skey->data);
466 sfree(skey); /* already present, don't waste RAM */
473 * This is the main agent function that answers messages.
475 static void answer_msg(void *msg) {
476 unsigned char *p = msg;
477 unsigned char *ret = msg;
481 * Get the message type.
487 case SSH1_AGENTC_REQUEST_RSA_IDENTITIES:
489 * Reply with SSH1_AGENT_RSA_IDENTITIES_ANSWER.
497 * Count up the number and length of keys we hold.
500 for (key = first234(rsakeys, &e); key; key = next234(&e)) {
502 len += 4; /* length field */
503 len += ssh1_bignum_length(key->exponent);
504 len += ssh1_bignum_length(key->modulus);
505 len += 4 + strlen(key->comment);
509 * Packet header is the obvious five bytes, plus four
510 * bytes for the key count.
513 if (len > AGENT_MAX_MSGLEN)
514 goto failure; /* aaargh! too much stuff! */
515 PUT_32BIT(ret, len-4);
516 ret[4] = SSH1_AGENT_RSA_IDENTITIES_ANSWER;
517 PUT_32BIT(ret+5, nkeys);
519 for (key = first234(rsakeys, &e); key; key = next234(&e)) {
520 PUT_32BIT(p, bignum_bitcount(key->modulus));
522 p += ssh1_write_bignum(p, key->exponent);
523 p += ssh1_write_bignum(p, key->modulus);
524 PUT_32BIT(p, strlen(key->comment));
525 memcpy(p+4, key->comment, strlen(key->comment));
526 p += 4 + strlen(key->comment);
530 case SSH2_AGENTC_REQUEST_IDENTITIES:
532 * Reply with SSH2_AGENT_IDENTITIES_ANSWER.
536 struct ssh2_userkey *key;
542 * Count up the number and length of keys we hold.
545 for (key = first234(ssh2keys, &e); key; key = next234(&e)) {
547 len += 4; /* length field */
548 blob = key->alg->public_blob(key->data, &bloblen);
551 len += 4 + strlen(key->comment);
555 * Packet header is the obvious five bytes, plus four
556 * bytes for the key count.
559 if (len > AGENT_MAX_MSGLEN)
560 goto failure; /* aaargh! too much stuff! */
561 PUT_32BIT(ret, len-4);
562 ret[4] = SSH2_AGENT_IDENTITIES_ANSWER;
563 PUT_32BIT(ret+5, nkeys);
565 for (key = first234(ssh2keys, &e); key; key = next234(&e)) {
566 blob = key->alg->public_blob(key->data, &bloblen);
567 PUT_32BIT(p, bloblen);
569 memcpy(p, blob, bloblen);
572 PUT_32BIT(p, strlen(key->comment));
573 memcpy(p+4, key->comment, strlen(key->comment));
574 p += 4 + strlen(key->comment);
578 case SSH1_AGENTC_RSA_CHALLENGE:
580 * Reply with either SSH1_AGENT_RSA_RESPONSE or
581 * SSH_AGENT_FAILURE, depending on whether we have that key
585 struct RSAKey reqkey, *key;
586 Bignum challenge, response;
587 unsigned char response_source[48], response_md5[16];
588 struct MD5Context md5c;
592 p += ssh1_read_bignum(p, &reqkey.exponent);
593 p += ssh1_read_bignum(p, &reqkey.modulus);
594 p += ssh1_read_bignum(p, &challenge);
595 memcpy(response_source+32, p, 16); p += 16;
596 if (GET_32BIT(p) != 1 ||
597 (key = find234(rsakeys, &reqkey, NULL)) == NULL) {
598 freebn(reqkey.exponent);
599 freebn(reqkey.modulus);
603 response = rsadecrypt(challenge, key);
604 for (i = 0; i < 32; i++)
605 response_source[i] = bignum_byte(response, 31-i);
608 MD5Update(&md5c, response_source, 48);
609 MD5Final(response_md5, &md5c);
610 memset(response_source, 0, 48); /* burn the evidence */
611 freebn(response); /* and that evidence */
612 freebn(challenge); /* yes, and that evidence */
613 freebn(reqkey.exponent); /* and free some memory ... */
614 freebn(reqkey.modulus); /* ... while we're at it. */
617 * Packet is the obvious five byte header, plus sixteen
621 PUT_32BIT(ret, len-4);
622 ret[4] = SSH1_AGENT_RSA_RESPONSE;
623 memcpy(ret+5, response_md5, 16);
626 case SSH2_AGENTC_SIGN_REQUEST:
628 * Reply with either SSH2_AGENT_RSA_RESPONSE or
629 * SSH_AGENT_FAILURE, depending on whether we have that key
633 struct ssh2_userkey *key;
635 unsigned char *data, *signature;
636 int datalen, siglen, len;
638 b.len = GET_32BIT(p);
642 datalen = GET_32BIT(p);
645 key = find234(ssh2keys, &b, cmpkeys_ssh2_asymm);
648 signature = key->alg->sign(key->data, data, datalen, &siglen);
650 PUT_32BIT(ret, len-4);
651 ret[4] = SSH2_AGENT_SIGN_RESPONSE;
652 PUT_32BIT(ret+5, siglen);
653 memcpy(ret+5+4, signature, siglen);
657 case SSH1_AGENTC_ADD_RSA_IDENTITY:
659 * Add to the list and return SSH_AGENT_SUCCESS, or
660 * SSH_AGENT_FAILURE if the key was malformed.
665 key = smalloc(sizeof(struct RSAKey));
666 memset(key, 0, sizeof(key));
667 p += makekey(p, key, NULL, 1);
668 p += makeprivate(p, key);
669 p += ssh1_read_bignum(p, key->iqmp); /* p^-1 mod q */
670 p += ssh1_read_bignum(p, key->p); /* p */
671 p += ssh1_read_bignum(p, key->q); /* q */
672 comment = smalloc(GET_32BIT(p));
674 memcpy(comment, p+4, GET_32BIT(p));
675 key->comment = comment;
678 ret[4] = SSH_AGENT_FAILURE;
679 if (add234(rsakeys, key) == key) {
681 ret[4] = SSH_AGENT_SUCCESS;
688 case SSH2_AGENTC_ADD_IDENTITY:
690 * Add to the list and return SSH_AGENT_SUCCESS, or
691 * SSH_AGENT_FAILURE if the key was malformed.
694 struct ssh2_userkey *key;
699 key = smalloc(sizeof(struct ssh2_userkey));
701 alglen = GET_32BIT(p); p += 4;
702 alg = p; p += alglen;
703 /* Add further algorithm names here. */
704 if (alglen == 7 && !memcmp(alg, "ssh-rsa", 7))
711 bloblen = GET_32BIT((unsigned char *)msg) - (p-(unsigned char *)msg-4);
712 key->data = key->alg->openssh_createkey(&p, &bloblen);
717 commlen = GET_32BIT(p); p += 4;
719 comment = smalloc(commlen+1);
721 memcpy(comment, p, commlen);
722 comment[commlen] = '\0';
724 key->comment = comment;
727 ret[4] = SSH_AGENT_FAILURE;
728 if (add234(ssh2keys, key) == key) {
730 ret[4] = SSH_AGENT_SUCCESS;
732 key->alg->freekey(key->data);
738 case SSH1_AGENTC_REMOVE_RSA_IDENTITY:
740 * Remove from the list and return SSH_AGENT_SUCCESS, or
741 * perhaps SSH_AGENT_FAILURE if it wasn't in the list to
745 struct RSAKey reqkey, *key;
747 p += makekey(p, &reqkey, NULL, 0);
748 key = find234(rsakeys, &reqkey, NULL);
749 freebn(reqkey.exponent);
750 freebn(reqkey.modulus);
752 ret[4] = SSH_AGENT_FAILURE;
754 del234(rsakeys, key);
758 ret[4] = SSH_AGENT_SUCCESS;
762 case SSH2_AGENTC_REMOVE_IDENTITY:
764 * Remove from the list and return SSH_AGENT_SUCCESS, or
765 * perhaps SSH_AGENT_FAILURE if it wasn't in the list to
769 struct ssh2_userkey *key;
772 b.len = GET_32BIT(p);
776 key = find234(ssh2keys, &b, cmpkeys_ssh2_asymm);
781 ret[4] = SSH_AGENT_FAILURE;
783 del234(ssh2keys, key);
785 key->alg->freekey(key->data);
787 ret[4] = SSH_AGENT_SUCCESS;
791 case SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES:
793 * Remove all SSH1 keys. Always returns success.
799 while ( (rkey = first234(rsakeys, &e)) != NULL ) {
800 del234(rsakeys, rkey);
807 ret[4] = SSH_AGENT_SUCCESS;
810 case SSH2_AGENTC_REMOVE_ALL_IDENTITIES:
812 * Remove all SSH2 keys. Always returns success.
815 struct ssh2_userkey *skey;
818 while ( (skey = first234(ssh2keys, &e)) != NULL ) {
819 del234(ssh2keys, skey);
820 skey->alg->freekey(skey->data);
826 ret[4] = SSH_AGENT_SUCCESS;
832 * Unrecognised message. Return SSH_AGENT_FAILURE.
835 ret[4] = SSH_AGENT_FAILURE;
841 * Key comparison function for the 2-3-4 tree of RSA keys.
843 static int cmpkeys_rsa(void *av, void *bv) {
844 struct RSAKey *a = (struct RSAKey *)av;
845 struct RSAKey *b = (struct RSAKey *)bv;
852 * Compare by length of moduli.
854 alen = bignum_bitcount(am);
855 blen = bignum_bitcount(bm);
856 if (alen > blen) return +1; else if (alen < blen) return -1;
858 * Now compare by moduli themselves.
860 alen = (alen + 7) / 8; /* byte count */
863 abyte = bignum_byte(am, alen);
864 bbyte = bignum_byte(bm, alen);
865 if (abyte > bbyte) return +1; else if (abyte < bbyte) return -1;
874 * Key comparison function for the 2-3-4 tree of SSH2 keys.
876 static int cmpkeys_ssh2(void *av, void *bv) {
877 struct ssh2_userkey *a = (struct ssh2_userkey *)av;
878 struct ssh2_userkey *b = (struct ssh2_userkey *)bv;
881 unsigned char *ablob, *bblob;
885 * Compare purely by public blob.
887 ablob = a->alg->public_blob(a->data, &alen);
888 bblob = b->alg->public_blob(b->data, &blen);
891 for (i = 0; i < alen && i < blen; i++) {
892 if (ablob[i] < bblob[i]) {
894 } else if (ablob[i] > bblob[i]) {
898 if (c == 0 && i < alen) c = +1; /* a is longer */
899 if (c == 0 && i < blen) c = -1; /* a is longer */
908 * Key comparison function for looking up a blob in the 2-3-4 tree
911 static int cmpkeys_ssh2_asymm(void *av, void *bv) {
912 struct blob *a = (struct blob *)av;
913 struct ssh2_userkey *b = (struct ssh2_userkey *)bv;
916 unsigned char *ablob, *bblob;
920 * Compare purely by public blob.
924 bblob = b->alg->public_blob(b->data, &blen);
927 for (i = 0; i < alen && i < blen; i++) {
928 if (ablob[i] < bblob[i]) {
930 } else if (ablob[i] > bblob[i]) {
934 if (c == 0 && i < alen) c = +1; /* a is longer */
935 if (c == 0 && i < blen) c = -1; /* a is longer */
942 static void error(char *s) {
943 MessageBox(hwnd, s, APPNAME, MB_OK | MB_ICONERROR);
947 * Prompt for a key file to add, and add it.
949 static void prompt_add_keyfile(void) {
951 char filename[FILENAME_MAX];
952 memset(&of, 0, sizeof(of));
953 #ifdef OPENFILENAME_SIZE_VERSION_400
954 of.lStructSize = OPENFILENAME_SIZE_VERSION_400;
956 of.lStructSize = sizeof(of);
959 of.lpstrFilter = "All Files\0*\0\0\0";
960 of.lpstrCustomFilter = NULL;
962 of.lpstrFile = filename; *filename = '\0';
963 of.nMaxFile = sizeof(filename);
964 of.lpstrFileTitle = NULL;
965 of.lpstrInitialDir = NULL;
966 of.lpstrTitle = "Select Private Key File";
968 if (GetOpenFileName(&of)) {
969 add_keyfile(filename);
975 * Dialog-box function for the key list box.
977 static int CALLBACK KeyListProc(HWND hwnd, UINT msg,
978 WPARAM wParam, LPARAM lParam) {
981 struct ssh2_userkey *skey;
988 { /* centre the window */
992 hw = GetDesktopWindow();
993 if (GetWindowRect (hw, &rs) && GetWindowRect (hwnd, &rd))
994 MoveWindow (hwnd, (rs.right + rs.left + rd.left - rd.right)/2,
995 (rs.bottom + rs.top + rd.top - rd.bottom)/2,
996 rd.right-rd.left, rd.bottom-rd.top, TRUE);
1001 static int tabs[] = {35, 60, 210};
1002 SendDlgItemMessage (hwnd, 100, LB_SETTABSTOPS,
1003 sizeof(tabs)/sizeof(*tabs), (LPARAM) tabs);
1008 switch (LOWORD(wParam)) {
1012 DestroyWindow(hwnd);
1014 case 101: /* add key */
1015 if (HIWORD(wParam) == BN_CLICKED ||
1016 HIWORD(wParam) == BN_DOUBLECLICKED) {
1017 prompt_add_keyfile();
1020 case 102: /* remove key */
1021 if (HIWORD(wParam) == BN_CLICKED ||
1022 HIWORD(wParam) == BN_DOUBLECLICKED) {
1023 int n = SendDlgItemMessage (hwnd, 100, LB_GETCURSEL, 0, 0);
1028 for (rkey = first234(rsakeys, &e); rkey; rkey = next234(&e))
1032 del234(rsakeys, rkey);
1036 for (skey = first234(ssh2keys, &e); skey; skey = next234(&e))
1040 del234(ssh2keys, skey);
1041 skey->alg->freekey(skey->data);
1052 DestroyWindow(hwnd);
1058 static LRESULT CALLBACK WndProc (HWND hwnd, UINT message,
1059 WPARAM wParam, LPARAM lParam) {
1061 static int menuinprogress;
1065 if (lParam == WM_RBUTTONUP) {
1067 GetCursorPos(&cursorpos);
1068 PostMessage(hwnd, WM_SYSTRAY2, cursorpos.x, cursorpos.y);
1069 } else if (lParam == WM_LBUTTONDBLCLK) {
1070 /* Equivalent to IDM_VIEWKEYS. */
1071 PostMessage(hwnd, WM_COMMAND, IDM_VIEWKEYS, 0);
1075 if (!menuinprogress) {
1077 SetForegroundWindow(hwnd);
1078 ret = TrackPopupMenu(systray_menu,
1079 TPM_RIGHTALIGN | TPM_BOTTOMALIGN |
1081 wParam, lParam, 0, hwnd, NULL);
1087 switch (wParam & ~0xF) { /* low 4 bits reserved to Windows */
1089 SendMessage(hwnd, WM_CLOSE, 0, 0);
1093 keylist = CreateDialog (instance, MAKEINTRESOURCE(211),
1095 ShowWindow (keylist, SW_SHOWNORMAL);
1097 * Sometimes the window comes up minimised / hidden
1098 * for no obvious reason. Prevent this.
1100 SetForegroundWindow(keylist);
1101 SetWindowPos (keylist, HWND_TOP, 0, 0, 0, 0,
1102 SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
1106 prompt_add_keyfile();
1110 aboutbox = CreateDialog (instance, MAKEINTRESOURCE(213),
1112 ShowWindow (aboutbox, SW_SHOWNORMAL);
1114 * Sometimes the window comes up minimised / hidden
1115 * for no obvious reason. Prevent this.
1117 SetForegroundWindow(aboutbox);
1118 SetWindowPos (aboutbox, HWND_TOP, 0, 0, 0, 0,
1119 SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW);
1125 PostQuitMessage (0);
1129 COPYDATASTRUCT *cds;
1132 HANDLE filemap, proc;
1133 PSID mapowner, procowner;
1134 PSECURITY_DESCRIPTOR psd1 = NULL, psd2 = NULL;
1137 cds = (COPYDATASTRUCT *)lParam;
1138 if (cds->dwData != AGENT_COPYDATA_ID)
1139 return 0; /* not our message, mate */
1140 mapname = (char *)cds->lpData;
1141 if (mapname[cds->cbData - 1] != '\0')
1142 return 0; /* failure to be ASCIZ! */
1144 debug(("mapname is :%s:\r\n", mapname));
1146 filemap = OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, mapname);
1148 debug(("filemap is %p\r\n", filemap));
1150 if (filemap != NULL && filemap != INVALID_HANDLE_VALUE) {
1154 if ((proc = OpenProcess(MAXIMUM_ALLOWED, FALSE,
1155 GetCurrentProcessId())) == NULL) {
1157 debug(("couldn't get handle for process\r\n"));
1161 if (getsecurityinfo(proc, SE_KERNEL_OBJECT,
1162 OWNER_SECURITY_INFORMATION,
1163 &procowner, NULL, NULL, NULL,
1164 &psd2) != ERROR_SUCCESS) {
1166 debug(("couldn't get owner info for process\r\n"));
1169 return 0; /* unable to get security info */
1172 if ((rc = getsecurityinfo(filemap, SE_KERNEL_OBJECT,
1173 OWNER_SECURITY_INFORMATION,
1174 &mapowner, NULL, NULL, NULL,
1175 &psd1) != ERROR_SUCCESS)) {
1177 debug(("couldn't get owner info for filemap: %d\r\n", rc));
1182 debug(("got security stuff\r\n"));
1184 if (!EqualSid(mapowner, procowner))
1185 return 0; /* security ID mismatch! */
1187 debug(("security stuff matched\r\n"));
1193 debug(("security APIs not present\r\n"));
1197 p = MapViewOfFile(filemap, FILE_MAP_WRITE, 0, 0, 0);
1199 debug(("p is %p\r\n", p));
1200 {int i; for(i=0;i<5;i++)debug(("p[%d]=%02x\r\n", i, ((unsigned char *)p)[i]));}
1206 CloseHandle(filemap);
1211 return DefWindowProc (hwnd, message, wParam, lParam);
1215 * Fork and Exec the command in cmdline. [DBW]
1217 void spawn_cmd(char *cmdline, int show) {
1218 if (ShellExecute(NULL, _T("open"), cmdline,
1219 NULL, NULL, show) <= (HINSTANCE) 32) {
1221 sprintf(sMsg, _T("Failed to run \"%.100s\", Error: %d"), cmdline,
1223 MessageBox(NULL, sMsg, APPNAME, MB_OK | MB_ICONEXCLAMATION);
1227 int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show) {
1232 char *command = NULL;
1236 * Determine whether we're an NT system (should have security
1237 * APIs) or a non-NT system (don't do security).
1239 memset(&osi, 0, sizeof(OSVERSIONINFO));
1240 osi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1241 if (GetVersionEx(&osi) && osi.dwPlatformId==VER_PLATFORM_WIN32_NT) {
1242 has_security = TRUE;
1244 has_security = FALSE;
1249 * Attempt to get the security API we need.
1251 advapi = LoadLibrary("ADVAPI32.DLL");
1252 getsecurityinfo = (gsi_fn_t)GetProcAddress(advapi, "GetSecurityInfo");
1253 if (!getsecurityinfo) {
1255 "Unable to access security APIs. Pageant will\n"
1256 "not run, in case it causes a security breach.",
1257 "Pageant Fatal Error", MB_ICONERROR | MB_OK);
1262 "This program has been compiled for Win9X and will\n"
1263 "not run on NT, in case it causes a security breach.",
1264 "Pageant Fatal Error", MB_ICONERROR | MB_OK);
1273 * Find out if Pageant is already running.
1275 already_running = FALSE;
1276 if (FindWindow("Pageant", "Pageant"))
1277 already_running = TRUE;
1282 wndclass.lpfnWndProc = WndProc;
1283 wndclass.cbClsExtra = 0;
1284 wndclass.cbWndExtra = 0;
1285 wndclass.hInstance = inst;
1286 wndclass.hIcon = LoadIcon (inst,
1287 MAKEINTRESOURCE(IDI_MAINICON));
1288 wndclass.hCursor = LoadCursor (NULL, IDC_IBEAM);
1289 wndclass.hbrBackground = GetStockObject (BLACK_BRUSH);
1290 wndclass.lpszMenuName = NULL;
1291 wndclass.lpszClassName = APPNAME;
1293 RegisterClass (&wndclass);
1296 hwnd = keylist = NULL;
1298 hwnd = CreateWindow (APPNAME, APPNAME,
1299 WS_OVERLAPPEDWINDOW | WS_VSCROLL,
1300 CW_USEDEFAULT, CW_USEDEFAULT,
1301 100, 100, NULL, NULL, inst, NULL);
1303 /* Set up a system tray icon */
1306 NOTIFYICONDATA tnid;
1309 #ifdef NIM_SETVERSION
1311 res = Shell_NotifyIcon(NIM_SETVERSION, &tnid);
1314 tnid.cbSize = sizeof(NOTIFYICONDATA);
1316 tnid.uID = 1; /* unique within this systray use */
1317 tnid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
1318 tnid.uCallbackMessage = WM_SYSTRAY;
1319 tnid.hIcon = hicon = LoadIcon (instance, MAKEINTRESOURCE(201));
1320 strcpy(tnid.szTip, "Pageant (PuTTY authentication agent)");
1322 res = Shell_NotifyIcon(NIM_ADD, &tnid);
1327 systray_menu = CreatePopupMenu();
1328 /* accelerators used: vkxa */
1329 AppendMenu (systray_menu, MF_ENABLED, IDM_VIEWKEYS, "&View Keys");
1330 AppendMenu (systray_menu, MF_ENABLED, IDM_ADDKEY, "Add &Key");
1331 AppendMenu (systray_menu, MF_ENABLED, IDM_ABOUT, "&About");
1332 AppendMenu (systray_menu, MF_ENABLED, IDM_CLOSE, "E&xit");
1335 ShowWindow (hwnd, SW_HIDE);
1338 * Initialise storage for RSA keys.
1340 rsakeys = newtree234(cmpkeys_rsa);
1341 ssh2keys = newtree234(cmpkeys_ssh2);
1346 * Process the command line and add keys as listed on it.
1347 * If we already determined that we need to spawn a program from above we
1348 * need to ignore the first two arguments. [DBW]
1356 while (*p && isspace(*p)) p++;
1357 if (*p && !isspace(*p)) {
1358 char *q = p, *pp = p;
1359 while (*p && (inquotes || !isspace(*p)))
1362 inquotes = !inquotes;
1372 if (!strcmp(q, "-c")) {
1374 * If we see `-c', then the rest of the
1375 * command line should be treated as a
1376 * command to be spawned.
1378 while (*p && isspace(*p)) p++;
1389 if (command) spawn_cmd (command, show);
1392 * If Pageant was already running, we leave now. If we haven't
1393 * even taken any auxiliary action (spawned a command or added
1396 if (already_running) {
1397 if (!command && !added_keys) {
1398 MessageBox(NULL, "Pageant is already running", "Pageant Error",
1399 MB_ICONERROR | MB_OK);
1401 if (advapi) FreeLibrary(advapi);
1406 * Main message loop.
1408 while (GetMessage(&msg, NULL, 0, 0) == 1) {
1409 TranslateMessage(&msg);
1410 DispatchMessage(&msg);
1413 /* Clean up the system tray icon */
1415 NOTIFYICONDATA tnid;
1417 tnid.cbSize = sizeof(NOTIFYICONDATA);
1421 Shell_NotifyIcon(NIM_DELETE, &tnid);
1423 DestroyMenu(systray_menu);
1426 if (advapi) FreeLibrary(advapi);